Sample records for outpatient barium enema

  1. [Glucagon-based cleansing enemas prior to a double-contrast barium enema].

    PubMed

    Pietilä, J A

    1992-01-01

    The cleansing effect of large-volume enemas supported or unsupported by glucagon was studied in 20 each outpatients before a double-contrast barium enema. There was no statistically significant difference in respect of the remaining rests of faeces and the contrast medium coat. Patients suffering from intestinal spasms and anal insufficiency experience a feeling of relief by the intramuscular administration of glucagon during the preparatory enema; the quality of the double-contrast barium enema is not affected. PMID:1547292

  2. Recognition and prevention of barium enema complications.

    PubMed

    Williams, S M; Harned, R K

    1991-01-01

    The barium enema is a safe and accurate diagnostic study of the colon but, in rare cases, complications may result. Many of these can be prevented by proper equipment and careful attention to technique. When a complication does occur, prompt recognition and management is vital in decreasing morbidity and mortality. Perforation of the bowel is the most frequent serious complication, occurring in approximately 0.02% to 0.04% of patients. Rarely the colon may burst due to excessive transmural pressure alone. However, a colon weakened by iatrogenic trauma or disease is more likely to perforate during an enema than is a normal healthy bowel. Injury to the rectal mucosa or anal canal due to the enema tip or retention balloon is probably the most common traumatic cause of barium enema perforation. Inflation of a retention balloon within a stricture, neoplasm, inflamed rectum, or colostomy stoma is particularly hazardous. Recent deep biopsy or polypectomy with electrocautery makes the bowel more vulnerable to rupture. The tensile strength of the bowel wall is impaired in elderly patients, patients receiving long-term steroid therapy, and in disease states including neoplasm, diverticulitis, inflammatory bowel disease, and ischemia. Intraperitoneal perforation leads to a severe, acute peritonitis with intravascular volume depletion. The ensuing shock may be rapidly fatal. Prompt fluid replacement and laparotomy are essential. If the patient survives the initial shock and sepsis, later complications caused by dense intraperitoneal adhesions may develop. Extraperitoneal perforation is usually less catastrophic but may result in pain, sepsis, cellulitis, abscess, rectal stricture, or fistula. Intramural extravasation often forms a persistent submucosal barium granuloma which may ulcerate or be mistaken for a neoplasm. The most dramatic complication of barium enema is venous intravasation of barium. Fortunately, this is quite rare as it may be immediately lethal. Most cases have been attributed to trauma from the enema tip or retention balloon, mucosal inflammation, or misplacement of the tip in the vagina. Bacteremia has been found in as many as 23% of patients following barium enema and, in rare cases, may cause symptomatic septicemia. Other less common complications include barium impaction, water intoxication, allergic reactions, and cardiac arrhythmias. Preparatory laxatives and cleansing enemas have been implicated in some instances of dehydration, rectal trauma, water intoxication, and perforation. Careful review of the indications for examination, previous radiographs, and clinical history will identify many of the patients at greater risk for complications so that appropriate precautions may be observed.(ABSTRACT TRUNCATED AT 400 WORDS) PMID:1889235

  3. A complication of cleansing enema: Retained protective shield of the enema tip

    Microsoft Academic Search

    Bernard E. Zeligman; Lawrence E. Feinberg; Eric D. Johnson

    1986-01-01

    A retained enema tube sheath was encountered in 4 outpatients who underwent preparation for barium enema. This object can be detected on a plain abdominal roentgenogram, but is more readily apparent as an intraluminal foreign body during barium enema examination. We suggest that a prominent warning to remove the sheath before taking a cleansing enema be attached to the enema

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

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ...2012-04-01 2012-04-01 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, 2013 CFR

    2013-04-01

    ...2013-04-01 2013-04-01 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...

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

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ...2014-04-01 2014-04-01 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...

  7. 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...

  8. 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...

  9. 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

  10. Current perspectives in colon radiography: the postendoscopy and postbiopsy barium enema.

    PubMed

    Lappas, J C; Maglinte, D D

    1985-01-01

    Controversy prevails regarding the same-day performance of barium enema examinations and endoscopy. Concerns focus upon the diagnostic quality of the postendoscopy barium enema and the risk of perforation if colorectal biopsy is performed during the endoscopy. Results of a study of 295 patients support that rigid or fiberoptic sigmoidoscopy can be performed the same day as single- or double-contrast barium enemas without adversely affecting the quality or interpretation of the barium examination. Animal studies suggest that a barium enema may be performed safely immediately after a superficial biopsy of a nondiseased colon and 6 days after a deep biopsy. Barium sulfate appears to have no deleterious effect on the healing of colorectal biopsy sites. These findings have important implications when considering health care logistics and cost containment. PMID:3896653

  11. [A case of the latex-induced anaphylaxis by contact with barium enema catheter].

    PubMed

    Fujie, Sayuri; Yagami, Akiko; Suzuki, Kayoko; Akamatsu, Hirohiko; Matsunaga, Kayoko

    2004-01-01

    The subject was a 34-year-old female with asthma and atopic dermatitis who had previously undergone a Cesarean section. In December 1995, the patient had an acute abdominal pain, so she underwent a barium enema examination. During the procedure, severe anaphylactic shock developed, and the examination was stopped. The patient responded well to appropriate emergency therapy, and her symptoms were resolved. However, the woman visited our outpatient clinic because the symptoms of her atopic dermatitis got worse. She indicated that she felt itchy when using rubber gloves. Also, at the age of thirty, she had urticaria and dyspnea after drinking a glass of fruit juice. Subsequently radioallergosorbent testing demonstrated the presence of specific IgEs against latex, banana, kiwi, grapefruit, and avocado. Skin prick tests were positive for banana, grapefruit, avocado, and latex extract at a dilution of 1:1000. A scratch test was positive to an extract of a balloon catheter which included 0.3 microg/g latex proteins by the LEAP method. In conclusion, the patient was diagnosed with an anaphylaxis to the latex contained in a balloon catheter used for the barium enema. PMID:14762330

  12. Use of Bisacodyl in Preparation of the Bowels for a Barium Enema

    Microsoft Academic Search

    J. G. Sowerbutts

    1960-01-01

    This account of a new and successful technique in preparing patients for a barium enema examination will interest clinicians, for its eventual adoption by radiologists would greatly reduce the discomfort of this invaluable but disagreeable investigation.

  13. Colonoscopy can miss diverticula of the left colon identified by barium enema

    PubMed Central

    Niikura, Ryota; Nagata, Naoyoshi; Shimbo, Takuro; Akiyama, Junichi; Uemura, Naomi

    2013-01-01

    AIM: To identify the diagnostic value of colonoscopy for diverticulosis as determined by barium enema. METHODS: A total of 65 patients with hematochezia who underwent colonoscopy and barium enema were analyzed, and the diagnostic value of colonoscopy for diverticula was assessed. The receiver operating characteristic area under the curve was compared in relation to age (< 70 or ? 70 years), sex, and colon location. The number of diverticula was counted, and the detection ratio was calculated. RESULTS: Colonic diverticula were observed in 46 patients with barium enema. Colonoscopy had a sensitivity of 91% and specificity of 90%. No significant differences were found in the receiver operating characteristic area under the curve (ROC-AUC) for age group or sex. The ROC-AUC of the left colon was significantly lower than that of the right colon (0.81 vs 0.96, P = 0.02). Colonoscopy identified 486 colonic diverticula, while barium enema identified 1186. The detection ratio for the entire colon was therefore 0.41 (486/1186). The detection ratio in the left colon (0.32, 189/588) was significantly lower than that of the right colon (0.50, 297/598) (P < 0.01). CONCLUSION: Compared with barium enema, only half the number of colonic diverticula can be detected by colonoscopy in the entire colon and even less in the left colon. PMID:23613630

  14. Randomized clinical trial on the use of antispasmodic drugs in barium enema: impact on radiological practice

    Microsoft Academic Search

    Reginald Goei; Alphons H Kessels; Maarten Nix; Paul G Knipschild

    2000-01-01

    Purpose: To assess the willingness of radiologists to change their practice when the results of a randomized clinical trial (RCT) on the use of antispasmodic drugs in barium enema are presented. Materials and Methods: During the years 1994 and 1995 two postal questionnaires were sent to 481 practicing radiologists who were all members of the Netherlands Society of Radiology. In

  15. 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

  16. Accidental embryo irradiation during barium enema examinations: An estimation of absorbed dose

    SciTech Connect

    Damilakis, J.; Perisinakis, K.; Grammatikakis, J. [Univ. Hospital of Iraklion, Crete (Greece)] [and others] [Univ. Hospital of Iraklion, Crete (Greece); and others

    1996-04-01

    The purpose of this report is to investigate the possibility of an embryo to receive a dose of more than 10 cGy, the threshold of malformation induction in embryos reported by the International Commission on Radiological Protection, during barium enema examinations. Thermoluminescent dosimeters were place in a phantom to calculate the depth-to-skin conversion coefficient needed for dose estimation at the average embryo depth in patients. Barium enema examinations were performed in 20 women of childbearing age with diagnostic problems demanding longer fluoroscopy times. Doses at 6 cm, the average embryo depth, were determined by measurements at the patients` skin followed by dose calculation at the site of interest. The range of doses estimated at embryo depth for patients was 1.9 to 8.2 cGy. The dose always exceeded 5 cGy when fluoroscopy time was longer than 7 minutes. The dose at the embryo depth never exceeded 10 cGy. This study indicates that fluoroscopy time should not exceed 7 minutes in childbearing-age female patients undergoing barium enema examinations. 6 refs., 1 fig., 2 tabs.

  17. Patient experiences of colonoscopy, barium enema and CT colonography: a qualitative study.

    PubMed

    Von Wagner, C; Knight, K; Halligan, S; Atkin, W; Lilford, R; Morton, D; Wardle, J

    2009-01-01

    Previous studies of patient experience with bowel screening tests, in particular CT colonography (CTC), have superimposed global rating scales and not explored individual experience in detail. To redress this, we performed qualitative interviews in order to characterize patient expectations and experiences in depth. Following ethical permission, 16 patients undergoing CTC, 18 undergoing colonoscopy and 15 undergoing barium enema agreed to a semi-structured interview by a health psychologist. Interviews were recorded, responses transcribed and themes extracted with the aim of assimilating individual experiences to facilitate subsequent development and interpretation of quantitative surveys of overall satisfaction with each diagnostic test. Transcript analysis identified three principal themes: physical sensations, social interactions and information provision. Physical sensations differed for each test but were surprisingly well tolerated overall. Social interactions with staff were perceived as very important in colouring the whole experience, particularly in controlling the feelings of embarrassment, which was critical for all procedures. Information provision was also an important determinant of experience. Verbal feedback was most common during colonoscopy and invariably reassuring. However, patients undergoing CTC received little visual or verbal feedback and were often confused regarding the test outcome. Barium enema had no specific advantage over other tests. Qualitative interviews provided important perspectives on patient experience. Our data demonstrated that models describing the quality of medical encounters are applicable to single diagnostic episodes. Staff interactions and information provision were particularly important. We found advantages specific to both CTC and colonoscopy but none for barium enema. CTC could benefit greatly from improved information provision following examination. PMID:18824501

  18. Pirenzepine versus scopolamine methyl bromide in double-contrast barium enema study of large bowel.

    PubMed

    Marraccini, P; Braccini, G; Marrucci, A; Boraschi, P; Bertellotti, L; Testa, R

    1996-01-01

    To evaluate the usefulness of pirenzepine for diagnostic double-contrast barium enema study of the large bowel, pirenzepine and scopolamine methyl bromide (SMB) were compared in a single, blind, randomized trial. Sixty consecutive patients were enrolled in the study. Quantitative analysis of bowel distention was done by measuring the maximum diameter of the transverse colon before and after drug administration. Four independent observers blindly evaluated distention and mucosal coating of the large bowel and global quality of the images. No differences were found in the diagnostic performance between the two drugs. However, pirenzepine induced a slight but significantly larger distention of the large bowel (68 +/- 12 vs. 65 +/- 8 mm, p = 0.02). Heart rate and rhythm during the study were recorded by ECG. SMB induced tachycardia in all patients (from 72 +/- 15 to 98 +/- 24 beats/min, p < 0.01), whereas pirenzepine did not (from 76 +/- 13 to 78 +/- 20, p = NS). After SMB, one-patient exhibited faintness, and some patients complained of visual accommodation defects, dryness of the mouth, and dizziness. Pirenzepine had a diagnostic performance similar to SMB in avoiding adverse effects elicited by SMB. PMID:8661571

  19. Lower GI Series (Barium Enema)

    MedlinePLUS

    ... series by talking with a health care provider cleansing the bowel Talking with a health care provider. ... he or she may suggest a different procedure. Cleansing the bowel. The health care provider will give ...

  20. 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.

  1. 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...

  2. 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...

  3. 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...

  4. 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...

  5. 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...

  6. TOXICITY STUDIES ON TANNIC ACID ADMINISTERED BY ENEMA* II. THE COLONIC ABSORPTION AND INTRAPERITONEAL TOXICITY OF TANNIC ACID AND ITS HYDROLYTIC PRODUCTS IN RATS

    Microsoft Academic Search

    PHILLIP A. HARRIS; F. FRANK ZBORALSKE; OSCAR N. RAMBO; ALEXANDER R. MARGULIS; SIDNEY RIEGELMAN

    ration for roentgenologic examination or after incorporation in the barium enema. Since gastrointestinal absorption must have preceded hepatotoxicity, the condi- tions necessary for absorption are of inter- est. Unfortunately, absorption from the gastrointestinal tract has been poorly de- fined, largely due to the lack of adequate methods to detect intact tannic acid in biologic fluids and to distinguish it from

  7. Retrograde spreading of hydrocortisone enema in inflammatory bowel disease

    SciTech Connect

    Jay, M.; Digenis, G.A.; Foster, T.S.; Antonow, D.R.

    1986-02-01

    A hydrocortisone suspension enema was radiolabeled with (/sup 99m/Tc)technetium sulfur colloid and administered to four normal subjects and eight patients with varying degrees of inflammatory bowel disease. The extent of enema spreading was monitored using external scintigraphy for a period of up to 4 hr after administration. Pretreatment of normal subjects with an evacuation enema resulted in spreading of the radiolabeled enema throughout the entire colon. In seven of the eight patients studied, the enema migrated a distance equal to or greater than the extent of disease involvement. An in vivo stability study with an indium-111-labeled enema, using the perturbed angular correlation technique, revealed that the enema retains its stability for up to 90 min after administration. These results indicate that the use of hydrocortisone enemas may not be restricted to distal bowel disease, but may also be effective in inflammatory bowel diseases involving proximal regions of the colon.

  8. Effects of high volume saline enemas vs no enema during labour – The N-Ma Randomised Controlled Trial [ISRCTN43153145

    PubMed Central

    Cuervo, Luis Gabriel; Bernal, María del Pilar; Mendoza, Natalia

    2006-01-01

    Background Enemas are used during labour in obstetric settings with the belief that they reduce puerperal and neonatal infections, shorten labour duration, and make delivery cleaner for attending personnel. However, a systematic review of the literature found insufficient evidence to support the use of enemas. The objective of this RCT was to address an identified knowledge gap by determining the effect of routine enemas used during the first stage of labour on puerperal and neonatal infection rates. Methods Design: RCT (randomised controlled trial; randomized clinical trial). Outcomes: Clinical diagnosis of maternal or neonatal infections, labour duration, delivery types, episiotomy rates, and prescription of antibiotics Setting: Tertiary care referral hospital at the Javeriana University (Bogotá, Colombia) that attended 3170 births during study period with a caesarean section rate of 26%. Participants: 443 women admitted for delivery to the obstetrics service (February 1997 to February 1998) and followed for a month after delivery. Inclusion criteria were women with: low risk pregnancy and expected to remain in Bogotá during follow up; gestational age ? 36 weeks; no pelvic or systemic bacterial infection; intact membranes; cervix dilatation ?7 cm. Intervention: 1 litre saline enema, versus no enema, allocated following a block random allocation sequence and using sealed opaque envelopes. Results Allocation provided balanced groups and 86% of the participants were followed up for one month. The overall infection rate for newborns was 21%, and 18% for women. We found no significant differences in puerperal or neonatal infection rates (Puerperal infection: 41/190 [22%] with enema v 26/182 [14%] without enema; RR 0.66 CI 95%: 0.43 to 1.03; neonatal infection 38/191 [20%] with enema v 40/179 [22%] without enema; RR 1.12, 95% CI 95% 0.76 to 1.66), and median labour time was similar between groups (515 min. with enema v 585 min. without enema; P = 0.24). Enemas didn't significantly change episiorraphy dehiscence rates (21/182 [12%] with enema v 32/190 [17%] without enema; P = 0.30). Conclusion This RCT found no evidence to support routine use of enemas during labour. Although these results cannot rule out a small clinical effect, it seems unlikely that enemas will improve maternal and neonatal outcomes and provide an overall benefit. PMID:16545140

  9. 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,...

  10. Enema ion compositions for enhancing colorectal drug delivery.

    PubMed

    Maisel, Katharina; Chattopadhyay, Sumon; Moench, Thomas; Hendrix, Craig; Cone, Richard; Ensign, Laura M; Hanes, Justin

    2015-07-10

    Delivering drugs to the colorectum by enema has advantages for treating or preventing both local and systemic diseases. However, the properties of the enema itself are not typically exploited for improving drug delivery. Sodium ions are actively pumped out of the lumen of the colon, which is followed by osmotically-driven water absorption, so we hypothesized that this natural mechanism could be exploited to drive nanoparticles and drugs to the colorectal tissue surface. Here, we report that sodium-based, absorption-inducing (hypotonic) enemas rapidly transport hydrophilic drugs and non-mucoadhesive, mucus penetrating nanoparticles (MPP), deep into the colorectal folds to reach virtually the entire colorectal epithelial surface. In contrast, isotonic and secretion-inducing (hypertonic) vehicles led to non-uniform, poor surface coverage. Sodium-based enemas induced rapid fluid absorption even when moderately hyper-osmolal (~350mOsm) compared to blood (~300mOsm), which suggests that active sodium absorption plays a key role in osmosis-driven fluid uptake. We then used tenofovir, an antiretroviral drug in clinical trials for preventing HIV, to test the effects of enema composition on local and systemic drug delivery. We found that strongly hypotonic and hypertonic enemas caused rapid systemic drug uptake, whereas moderately hypotonic enemas with ion compositions similar to feces resulted in high local tissue levels with minimal systemic drug exposure. Similarly, moderately hypotonic enemas provided improved local drug retention in colorectal tissue, whereas hypertonic and isotonic enemas provided markedly reduced drug retention in colorectal tissue. Lastly, we found that moderately hypotonic enema formulations caused little to no detectable epithelial damage, while hypertonic solutions caused significant damage, including epithelial sloughing; the epithelial damage caused increased systemic drug absorption and penetration of MPP into colorectal tissue, a potential advantage in certain drug delivery applications. In summary, we illustrate that enema composition can be adjusted to maximize local versus systemic drug delivery, and that mildly hypotonic, sodium-based vehicles can provide uniform drug and MPP delivery in the colon that maximizes local drug concentrations. PMID:25937321

  11. MR colonography without bowel cleansing or water enema: a pilot study

    PubMed Central

    Sambrook, A; Mcateer, D; Yule, S; Phull, P

    2012-01-01

    Objectives The value of screening for colorectal cancer has been well demonstrated, and national programmes are being implemented. At present the primary imaging modality is colonoscopy, which has an associated morbidity and mortality. CT colonography (CTC) has been proposed as an alternative, but this is associated with radiation exposure and generally requires bowel preparation. The aim of this pilot study was to assess the feasibility of MR colonography (MRC) without bowel preparation or water enema for the detection of colorectal neoplasia. Methods Patients scheduled for colonoscopy were invited to participate in the study; informed consent was obtained. MRC (with oral barium faecal tagging and colonic air distension) was performed 1–2 weeks before the colonoscopy. Axial T2 weighted single-shot fast spin-echo (prone and supine) and axial T1 weighted fast spoiled gradient-recalled (pre- and post-iv gadolinium) supine MRI sequences were performed. The examinations were reported by two gastrointestinal radiologists by consensus. Colonoscopy following standard bowel preparation was performed by a single endoscopist blinded to the MRC results. Significant lesions were defined as polyps or masses >10 mm in diameter. Results 29 patients were studied. Colonoscopy revealed 25 mass lesions in 13 patients. MRC correctly identified four of the nine lesions >10 mm in diameter (sensitivity 44%; specificity 100%). Although specificity remained high for smaller lesions, sensitivity was poor. Conclusion This pilot study has demonstrated the feasibility of performing MRC without bowel preparation or water enema. This would seem to be a promising modality for colorectal cancer screening. Larger studies are required to determine the accuracy of this modality for the detection of colorectal neoplasia. PMID:22167505

  12. A randomised trial comparing mesalazine and prednisolone foam enemas in patients with acute distal ulcerative colitis

    Microsoft Academic Search

    F I Lee; D P Jewell; V Mani; M R Keighley; R D Kingston; C O Record; R H Grace; S Daniels; J Patterson; K Smith

    1996-01-01

    Distal ulcerative colitis can be treated with oral or rectal mesalazine, or both. A foam enema preparation has been developed and its efficacy investigated. The aim of this study was to evaluate the efficacy and safety of mesalazine foam enemas compared with prednisolone foam enemas in the treatment of patients with acute distal ulcerative colitis. Patients aged over 18 years

  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. A comparison of bowel preparations for flexible sigmoidoscopy: oral magnesium citrate combined with oral bisacodyl, one hypertonic phosphate enema, or two hypertonic phosphate enemasFig. 1

    Microsoft Academic Search

    Roger Keith Fincher; Eric M. Osgard; Jeffrey L. Jackson; Jeffrey S. Strong; Roy K. H. Wong

    1999-01-01

    OBJECTIVE:Magnesium citrate with hypertonic enemas or oral bisacodyl provides superior preparation quality for sigmoidoscopy over enemas alone. We compared three magnesium citrate sigmoidoscopy preparations in a randomized, single-blind, controlled trial.METHODS:Two hundred and ninety-one adults scheduled for routine sigmoidoscopy were randomly assigned to receive one of three preparations containing oral magnesium citrate (296 cc) taken the night before the procedure in

  15. Barium bright and heavy

    NASA Astrophysics Data System (ADS)

    Fromm, Katharina M.

    2013-02-01

    Katharina M. Fromm relates how barium and its ores went from a magical, glowing species that attracted witches and alchemists to components in a variety of compounds that are key parts of modern life.

  16. Beclomethasone dipropionate enemas for treating inflammatory bowel disease without producing Cushing's syndrome or hypothalamic pituitary adrenal suppression.

    PubMed

    Kumana, C R; Seaton, T; Meghji, M; Castelli, M; Benson, R; Sivakumaran, T

    1982-03-13

    Since beclomethasone dipropionate (BDP) is a very potent glucocorticoid and since small oral doses (1 mg) seem to be metabolised (possibly in the gut wall or liver) before they reach the systemic circulation, a study was conducted to find out whether patients with inflammatory bowel disease could be treated with enemas containing small doses of BDP without their acquiring Cushing's syndrome or hypothalamic pituitary adrenal (HPA) suppression. The BDP in the 100 ml enemas used was stable and present in a concentration likely to be therapeutic (0.5 mg/dl). Single overnight BDP enemas, unlike conventional betamethasone (5 mg) enemas, did not interfere with the HPA axis in 6 healthy volunteers. In the double-blind randomised part of the study 2-week courses of BDP or betamethasone enemas were assessed in 9 patients having exacerbations of distal inflammatory bowel disease. The clinical and sigmoidoscopic responses as well as adrenocortical function (judged by the 'Cosyntropin' test) were evaluated on the morning after the last day of a course of enemas. Both types of enemas had similar beneficial effects, but only BDP enemas did not interfere with HPA function. Over a prolonged period, a patient with distal ulcerative colitis had been completely dependent on regular treatment with betamethasone enemas to control his symptoms. Substitution with BDP enemas successfully controlled his bowel symptoms, whilst his cushingoid features and HPA suppression regressed. PMID:6121181

  17. Infection of Aedes albopictus with Chikungunya Virus Rectally Administered by Enema

    PubMed Central

    Ziegler, Sarah A.; Huang, Yan-Jang Scott; McAuley, Alex J.; Vanlandingham, Dana L.; Klowden, Marc J.; Spratt, Heidi; Davey, Robert A.; Higgs, Stephen

    2013-01-01

    Abstract Chikungunya virus (CHIKV) is an alphavirus transmitted by Aedes albopictus and Aedes aegypti mosquitoes in tropical areas of Africa, Asia, and the islands of the Indian Ocean. In 2007 and 2009, CHIKV was transmitted outside these tropical areas and caused geographically localized infections in people in Italy and France. To temporally and spatially characterize CHIKV infection of Ae. albopictus midguts, a comparison of viral distribution in mosquitoes infected per os or by enema was conducted. Ae. albopictus infected with CHIKV LR 5? green fluorescent protein (GFP) at a titer 106.95 tissue culture infective dose50 (TCID50)/mL, were collected and analyzed for virus dissemination by visualizing GFP expression and titration up to 14 days post inoculation (dpi). Additionally, midguts were dissected from the mosquitoes and imaged by fluorescence microscopy for comparison of midgut infection patterns between orally- and enema-infected mosquitoes. When virus was delivered via enema, the anterior midgut appeared more readily infected by 3?dpi, with increased GFP presentation observed in this same location of the midgut at 7 and 14?dpi when compared to orally-infected mosquitoes. This work demonstrates that enema delivery of virus is a viable technique for use of mosquito infection. Enema injection of mosquitoes may be an alternative to intrathoracic inoculation because the enema delivery more closely models natural infection and neither compromises midgut integrity nor involves a wound that can induce immune responses. Furthermore, unlike intrathoracic delivery, the enema does not bypass midgut barriers to infect tissues artificially in the hemocoel of the mosquito. PMID:23249139

  18. 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.

  19. 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

  20. 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

  1. 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.

  2. Barium Vanadate Microspheres

    NASA Astrophysics Data System (ADS)

    Yosinski, Shari; Tweeton, Landon; Feller, Steve; Affatigato, Mario

    2009-11-01

    It has been found that many glass powders can form micro- or nanospheres when heated in a flame or by a laser. Much of the research in this area of microspheres has concentrated on making hollow spheres, called microballoons, of silica and borosilicate glasses. Our aim was to create highly porous barium vanadate microspheres for possible future applications in material storage. The surface area of porous spheres would provide a greater amount of bonding surface area for dopants than hollow spheres. Barium vanadate glass with a molar fraction of 0.4 to 0.6 barium oxide was used because this glass is stable and has a low Tg. Size distributions of the spheres were quantified and the extent of sphere formation and porosity was examined using a scanning electron microscope. The size of spheres formed is affected by powder size, dropping method, and flame position. The porosity of the microspheres is affected by flame temperature, time spent in flame, and the material onto which the spheres fall. The greatest porosity was achieved by first heating the glass powder at a low temperature and then immediately sending it through the flames of two MAPP gas torches at approximately 2100^oC onto a metal sheet.

  3. 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.

  4. Barium uranyl diphosphonates

    NASA Astrophysics Data System (ADS)

    Nelson, Anna-Gay D.; Alekseev, Evgeny V.; Ewing, Rodney C.; Albrecht-Schmitt, Thomas E.

    2012-08-01

    Three Ba2+/UO22+ 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 °C. These compounds, Ba[UO2[CH2(PO3)2]·1.4H2O (Ba-1), Ba3[(UO2)4(CH2(PO3)2)2F6]·6H2O (Ba-2), and Ba2[(UO2)2(CH2(PO3)2)F4]·5.75H2O (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 UO5F2 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 [UO2[CH2(PO3)2]2- sheets. The interlayer space of the structures is occupied by Ba2+, which, along with the fluoride ion, mediates the structure formed and maintains overall charge balance.

  5. 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.

  6. 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.

  7. 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.

  8. Barium and iron abundances in red giants

    SciTech Connect

    Fernandez-Villacanas, J.L.; Rego, M.; Cornide, M. (Madrid Universidad Complutense (Spain))

    1990-06-01

    An intermediate-dispersion abundance analysis has been carried out on a sample of 21 barium and 14 comparison stars. The excess of barium over iron has been used as the most representative indicator of peculiarity. These excesses are higher in the peculiar stars than in the nonpeculiar stars. Particularly interesting is the case of HD 67447, included in the comparison stars, with an excess Ba/Fe abundance = 1.61, probably a new barium star. A trend indicating a possible anticorrelation between barium overabundance and metallicity favors the suggestion that the barium strong group is older than the barium weak one. 36 refs.

  9. Optimized photorefractive barium titanate

    NASA Astrophysics Data System (ADS)

    Warde, Cardinal; Jenssen, Hans P.

    1992-03-01

    The goal of this research program was to investigate new and modified crystal-growth techniques that would lead to high-optical-quality BaTiO3 with increased photorefractive speed and sensitivity. The research program consisted of four parts: (1) feed material purification; (2) crystal growth by the top-seeded-solution technique as well as by a barium borate flux technique; (3) new furnace design studies; and (4) photorefractive characterization experiments. Iron and nickel-doped BaTiO3 crystals were grown under the program. BaTiO3 is a promising photorefractive material due to its large electrooptic coefficient and excellent self-pumped phase conjugation. Our furnaces were limited by certain design and operating characteristics, and crystals grown in these furnaces were easily contaminated by the furnace itself. Two new furnaces, cylindrical and octagonal furnaces, were developed with commercially available parts that are cleaner, more mechanically reproducible, more uniform in temperature and more responsive to control action through reduced thermal mass. The two furnaces are equipped with precise computer control of the pulling and rotation system. The cylindrical furnace was found to be susceptible to cracking due to expansion when heated and to shrinkage after heating. To prevent cracking, expansion joints were provided and the insulation set was made of flat plates set up in an octagonal pattern.

  10. Interaction between Barium Oxide and Barium Containing Chloride Melt

    NASA Astrophysics Data System (ADS)

    Nikolaeva, Elena V.; Zakiryanova, Irina D.; Korzun, Iraida V.; Bovet, Andrey L.; Antonov, Boris D.

    2015-05-01

    Thermal analysis was applied to determine the liquidus temperatures in the NaCl-KCl-BaCl2-BaO system, with BaO concentration varied from 0 to 6 mole%. The temperature dependence of the BaO solubility in the NaCl-KCl-BaCl2 eutectic melt was investigated; the thermodynamic parameters of BaO dissolution were calculated. The caloric effects of melting of the NaCl-KCl-BaCl2 eutectic with barium oxide and barium oxychloride additions were studied. The type, morphology, and composition of oxychloride ionic groupings in the melt were determined in situ using Raman spectroscopy.

  11. Barium Stars and Thermohaline Mixing

    SciTech Connect

    Husti, Laura [Dipartimento di Fisica Generale, Universita di Torino, Via Pietro Giuria 1, 10125 Turin (Italy)

    2008-01-24

    Barium stars are formed in binary systems through mass transfer from the carbon and s-element rich primary in the AGB phase, to the secondary star which is in a less evolved evolutionary stage. The mixing of the accreted material from the AGB donor with the envelope of the secondary results in a dilution of the s-element abundances. Dilution in red giants is explained by the occurence of the first dredge up, while in case of dwarfs thermohaline mixing would determine it. A comparison between the theoretical predictions of the AGB stellar models and the spectroscopical observations of a large sample of barium stars has been made. Dilution due to thermohaline mixing was taken into account when searching for best fits of the observational data. The importance of thermohaline mixing in barium dwarfs is discussed.

  12. Single blind, randomised trial of efficacy and acceptability of oral Picolax versus self administered phosphate enema in bowel preparation for flexible sigmoidoscopy screening

    PubMed Central

    Atkin, Wendy S; Hart, Andrew; Edwards, Robert; Cook, Claire F; Wardle, Jane; McIntyre, Peter; Aubrey, Roger; Baron, Clare; Sutton, Stephen; Cuzick, Jack; Senapati, Asha; Northover, John M A

    2000-01-01

    Objective To compare the acceptability and efficacy of two methods of self administered bowel preparation for flexible sigmoidoscopy screening: a single phosphate enema and a single sachet of Picolax. Design Single blind, randomised trial. Setting Endoscopy units of two general hospitals. Participants 1442 men and women aged 55-64 years who had agreed to be screened by flexible sigmoidoscopy. Main outcome measures Attendance rates, compliance with allocated preparations, adverse effects, quality of bowel preparation, procedure time, and yield of neoplasia. Results Compliance with the enema was higher than with the Picolax (608 (84%) v 566 (79%); difference 6%, 95% confidence interval 2% to 10%). Almost half of those who refused Picolax used an enema at home. Wind, incontinence, and sleep disturbance were more frequent in the Picolax group than the enema group; bottom soreness was more frequent in the enema group. Around 30% (187) found the diet restriction required by Picolax difficult; 78% (471) found the enema easy to administer. The quality of preparation was better with the enema; the proportion of procedures complete to the descending colon was greater and the mean duration of the procedure was shorter. There was no significant difference in polyp detection rates. Conclusion A single phosphate enema self administered around one hour before leaving home is a more acceptable and effective method of preparing the distal bowel for flexible sigmoidoscopy than Picolax. PMID:10834891

  13. 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

  14. 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.

  15. 40 CFR 721.10011 - Barium calcium manganese strontium oxide.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ...2014-07-01 2014-07-01 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...

  16. 40 CFR 721.10011 - Barium calcium manganese strontium oxide.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ...2013-07-01 2013-07-01 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...

  17. 40 CFR 721.10011 - Barium calcium manganese strontium oxide.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ...2011-07-01 2011-07-01 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...

  18. 40 CFR 721.10011 - Barium calcium manganese strontium oxide.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ...2012-07-01 2012-07-01 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...

  19. Reproductive rates in schizophrenic outpatients.

    PubMed

    Nanko, S; Moridaira, J

    1993-06-01

    We investigated the marriage rates, the reproductive rates and the marital reproductivity of schizophrenic outpatients in Japan. A total of 553 patients with DSM-III-R-diagnosed schizophrenia at the Teikyo University Hospital, Tokyo, Japan were compared with age- and sex-matched outpatients at surgical clinics of the same hospital. Our findings indicate that the reproductivity of schizophrenics is reduced, even though the sample consists of outpatient population and modern operational diagnostic criteria have been used. The marriage rate and reproductive rate of the schizophrenics were reduced, especially in men. The number of married men was significantly less than that of married women and the reduced marital reproductivity was found in women but not men. These findings indicate that the reduced reproductivity of men in accounted for largely by a reduced rate of marriage, and that in women is accounted for partly by lower rate of reproductivity within marriage. PMID:8356891

  20. 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...

  1. Quantum manipulation on the Barium quadrupolar transition

    E-print Network

    Blatt, Rainer

    and stabilization of a new fiber laser system to ma- nipulate the Barium quadrupolar transition, with the aim . . . . . . . . . . . . . . . 55 6 Spectroscopy and sideband cooling on a single 138 Ba+ 58 6.1 Quantum jumps using the fiber laser . . . . . . . . . . . . .Quantum manipulation on the Barium quadrupolar transition A diploma thesis in physics submitted

  2. [Warm saline enema for reduction of intestinal invagination under the ultrasonographic guidance: preliminary results apropos of 2 cases].

    PubMed

    Cisse, R; Wandaogo, A; Bandre, E; Lougue, C; Tapsoba, T L; Sano, D; Traore, S S; Kirakoya, B; Bonkoungou, G; Sanou, A

    2001-11-01

    The authors describe the use of isotonic normal saline enema under US guidance in the treatment of acute uncomplicated intestinal intussusception in infants. The technique was successfully used in two patients aged respectively 18 and 16 months, with 11 and 9-month follow-up. The various steps of this technique and the results are analyzed and discussed. It is a valuable alternative to surgical treatment or hydrostatic reduction with opaque x-ray contrast under fluoroscopic guidance. PMID:11894553

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

    E-print Network

    Patton, Carl

    Electric field tunable 60 GHz ferromagnetic resonance response in barium ferrite-barium strontium barium strontium titanate films on Nb-doped strontium titanate substrates were capped with an unbonded comprised of a nominal 7 m thick yttrium iron garnet YIG film in contact with a 500 m thick barium strontium

  4. 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.

  5. Barium Ions for Quantum Computation Matthew Dietrich

    E-print Network

    Blinov, Boris

    Barium Ions for Quantum Computation Matthew Dietrich A dissertation submitted in partial for Quantum Computation Matthew Dietrich Chair of the Supervisory Committee: Assistant Professor Boris Blinov trap and laser cooled. Isotope selective photoionization is employed to improve trapping from

  6. 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

  7. A comparison of bowel preparations for flexible sigmoidoscopy: oral magnesium citrate combined with oral bisacodyl, one hypertonic phosphate enema, or two hypertonic phosphate enemas 1 1 The views expressed in this article are those of the authors and should not be construed to represent in any way those of the Department of Defense or the Department of the Army

    Microsoft Academic Search

    Roger Keith Fincher; Eric M Osgard; Jeffrey L Jackson; Jeffrey S Strong; Roy K. H Wong

    1999-01-01

    OBJECTIVE:Magnesium citrate with hypertonic enemas or oral bisacodyl provides superior preparation quality for sigmoidoscopy over enemas alone. We compared three magnesium citrate sigmoidoscopy preparations in a randomized, single-blind, controlled trial.METHODS:Two hundred and ninety-one adults scheduled for routine sigmoidoscopy were randomly assigned to receive one of three preparations containing oral magnesium citrate (296 cc) taken the night before the procedure in

  8. Utilization of Outpatient Diagnostic Imaging

    PubMed Central

    Rosen, Max P; Davis, Roger B; Lesky, Linda G

    1997-01-01

    OBJECTIVE To examine physician and patient characteristics related to the ordering of imaging studies in a general medicine practice and to determine whether physician gender influences ordering patterns. DESIGN Retrospective cohort study. SETTING Hospital-based academic general medicine practice of 29 attending physicians. PATIENTS All 8,203 visits by 5,011 patients during a 6-month period. METHODS For each visit the following variables were abstracted from the electronic patient record: patient age, patient gender, visit urgency, visit type, and physician seen. All diagnostic imaging studies performed within 30 days of each outpatient visit were identified from the hospital’s Radiology Information System. Screening mammography was not included in the analysis. Physician variables included gender and years since medical school graduation. Logistic regression analysis was used to evaluate the effect of various patient, physician, and visit characteristics on the probability of a diagnostic imaging study being ordered. RESULTS Patient age, urgent visits, visit frequency, and the gender of the physician were all significantly related to the ordering of an imaging study. Correcting for all other factors, the ordering of an imaging study during an outpatient medical visit was 40% more likely if the physician was female (odds ratio = 1.40; 95% confidence interval [CI] 1.01, 1.95). Female physicians were 62% more likely (95% CI 0.99, 2.64) than male physicians to order an imaging study for a male patient and 21% more likely (95% CI 0.87, 1.69) to order an imaging study for a female patient. CONCLUSIONS Physician gender is a predictor of whether an outpatient medical visit generates an imaging study. Reasons for this observation are unclear, but may be the result of different practice styles of male and female physicians or unmeasured patient characteristics. PMID:9229278

  9. Blue Shield of California outpatient payment program.

    PubMed

    Roughan, J F

    1994-01-01

    Faced with major increases in the cost of outpatient medical care, Blue Shield of California initiated an effort to develop and implement a prospective payment system that could be used for contracting with hospitals and freestanding facilities. Utilizing an outpatient classification system designed to categorize outpatient visits with similar clinical characteristics as well as similar resource consumption, Blue Shield introduced a negotiated case rate system of payment for outpatient surgical care. This article will review the background of the project, the methodology used to implement the system, and the results achieved from its implementation. PMID:10136812

  10. 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

  11. High-Dose Barium Impaction Therapy Is Useful for the Initial Hemostasis and for Preventing the Recurrence of Colonic Diverticular Bleeding Unresponsive to Endoscopic Clipping

    PubMed Central

    Nagata, Naoyoshi; Yamano, Kazuyoshi; Shimbo, Takuro; Uemura, Naomi

    2013-01-01

    Most cases of colonic diverticular bleeding stop spontaneously, but some patients experience massive bleeding that requires emergency treatment. Endoscopy can be useful when the bleeding source is identified. However, bleeding sometimes recurs within a short period despite the successful endoscopic treatment. Under such conditions, more invasive therapy such as interventional angiography or surgery is required and can prolong hospitalization and involve frequent blood transfusions. We report the case of a 68-year-old woman who presented with massive hematochezia. The patient was in hemorrhagic shock and required 16 units of blood transfusion to recover to general condition. We performed multidetector row computed tomography, but it showed no sites of bleeding. We conducted colonoscopy and identified the source of bleeding as colonic diverticula. We treated the bleeding with endoscopic hemoclips and achieved hemostasis, but bleeding recurred the next day. Four units of blood transfusion were required. We tried high-dose barium impaction therapy to avoid further blood transfusion and surgery. No complications or recurrent bleeding was observed for an 18-month period. Therapeutic barium enema is an option for colonic diverticular bleeding unresponsive to endoscopic clipping and may be effective for preventing recurrent bleeding. PMID:23762666

  12. Outpatient Commitment: What, Why, and for Whom

    Microsoft Academic Search

    E. Fuller Torrey; Mary Zdanowicz

    2001-01-01

    The authors describe studies showing the effectiveness of involuntary outpatient commitment in improving treatment compliance, reducing hospital readmission, and reducing episodes of violence among persons with severe psychiatric illnesses. They point out that because of its role in enhancing compliance with treatment, outpatient commitment can be regarded as a form of assisted treatment, such as assertive case man- agement, representative

  13. 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 17.165...Relief DEPARTMENT OF VETERANS AFFAIRS MEDICAL Dental Services § 17.165 Emergency outpatient dental treatment. When outpatient...

  14. 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 17.165...Relief DEPARTMENT OF VETERANS AFFAIRS MEDICAL Dental Services § 17.165 Emergency outpatient dental treatment. When outpatient...

  15. 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 17.165...Relief DEPARTMENT OF VETERANS AFFAIRS MEDICAL Dental Services § 17.165 Emergency outpatient dental treatment. When outpatient...

  16. 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 17.165...Relief DEPARTMENT OF VETERANS AFFAIRS MEDICAL Dental Services § 17.165 Emergency outpatient dental treatment. When outpatient...

  17. 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 17.165...Relief DEPARTMENT OF VETERANS AFFAIRS MEDICAL Dental Services § 17.165 Emergency outpatient dental treatment. When outpatient...

  18. 42 CFR 410.60 - Outpatient physical therapy services: Conditions.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ...2011-10-01 false Outpatient physical therapy services: Conditions. 410.60...Services § 410.60 Outpatient physical therapy services: Conditions. (a) Basic...Medicare Part B pays for outpatient physical therapy services only if they are...

  19. 42 CFR 410.60 - Outpatient physical therapy services: Conditions.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ...2012-10-01 false Outpatient physical therapy services: Conditions. 410.60...Services § 410.60 Outpatient physical therapy services: Conditions. (a) Basic...Medicare Part B pays for outpatient physical therapy services only if they are...

  20. Preparation and Properties of Barium Titanate Nanopowder\\/Epoxy Composites

    Microsoft Academic Search

    J. Chandradass; Dong-sik Bae

    2008-01-01

    This article is focused on the preparation of barium titanate nanopowder\\/epoxy composites and studying the effect of barium titanate nanopowder on improving mechanical and thermal characteristics of the epoxy polymer. Composites are prepared by dispersing barium titanate nanopowder in epoxy resin and, subsequently, cross-linking by using diamino diphenyl methane (DDM) curing agents. Synthesis of barium titanate nanopowder\\/epoxy composites is carried

  1. Rebampide enema therapy as a treatment for patients with chronic radiation proctitis: initial treatment or when other methods of conservative management have failed

    Microsoft Academic Search

    Tae Oh Kim; Geun Am Song; Sun Mi Lee; Gwang Ha Kim; Jeong Heo; Dae Hwan Kang; Mong Cho

    2008-01-01

    Introduction  Radiation proctitis is a common complication following radiation therapy for pelvic malignancies. There have been no formal\\u000a trials of treatment for radiation proctitis and a variety of methods are currently used. We assessed the efficacy of rebamipide\\u000a enema to control symptoms and proctoscopic findings from radiation proctitis.\\u000a \\u000a \\u000a \\u000a Materials and methods  Fifteen patients with radiation proctitis were enrolled. Enemas containing 150 mg rebamipide

  2. Improved spectrophotometric analysis of barium styphnate

    SciTech Connect

    Brown, N E; Blasi, J A

    1983-01-01

    A spectrophotometric procedure to determine the purity of barium styphnate monohydrate based upon the absorbance of the styphnate ion at 326 and 413.3 nm has been developed. The purity is determined by comparing the absorbance of the styphnate ion in barium styphnate and in styphnic acid. Our investigation has shown that the molar absorptivity and lambda maxima of the styphnate ion are quite pH dependent; therefore, the pH is buffered to 6.8 to 7.0 with ammonium acetate. Under these conditions the molar absorptivity is 1.6 x 10/sup 4/ L/mol-cm. Analyses following the procedure in the Navy specification WS13444A using water were found to give low molar absorptivities (1.3 x 10/sup 4/ L/mol-cm) for the styphnic acid calibration resulting in erroneous values for barium styphnate purity.

  3. Kinetics of photoplasma of dense barium vapour

    NASA Astrophysics Data System (ADS)

    Kosarev, N. I.

    2015-03-01

    Barium vapour ionisation under laser photoexcitation of the resonance line at a wavelength of ? = 553.5 nm is studied numerically. Seed electrons, arising due to the associative ionisation of atoms, gain energy in superelastic collisions and lead to electron avalanche ionisation of the medium. The influence of radiative transfer in a cylindrical gas volume on the excitation kinetics of barium atoms, absorption dynamics of laser radiation and oscillation of ionisation-brightening wave under competition between ionising and quenching collisions of electrons with excited atoms is studied.

  4. Managing outpatients with suicidal or homicidal ideation.

    PubMed

    Poa, Edward; Kass, Joseph S

    2015-06-01

    Regardless of their specialty, physicians encounter various potential clinical emergencies in their outpatients that may require referring patients for the appropriate level and urgency of care. One such situation is the outpatient who presents with suicidal or homicidal ideation. In this circumstance, the physician is faced with performing a rapid evaluation of the symptoms, determining the acuity of the situation, and safely referring the patient to an appropriate level of care. Using case vignettes, this article reviews some of the immediate critical factors to consider in evaluating and managing the outpatient who expresses thoughts of suicide or homicide. PMID:26039858

  5. [Hiv patients in a psychiatric outpatient clinic].

    PubMed

    Lunter, C H; Sno, H N; van den Boom, F M

    1991-11-16

    The most often reported psychiatric complications among HIV-infected outpatients include: mood and anxiety disorders, and alcohol or nonopiate drug abuse. Medical records of 32 HIV-infected psychiatric outpatients in the Netherlands were studied. The most common DSM-III(-R) diagnoses included: major depression (n = 10) and adjustment disorder with depressive or anxious mood (n = 10). The psychiatric treatment of the HIV-infected outpatients did not differ fundamentally from the treatment of other psychiatric outpatients with similar problems. The increasing number of HIV infected patients in the Netherlands living outside of Amsterdam, would appear to urge more education of psychiatric and other health care professionals concerning specific aspects of HIV infection, homosexuality, prostitution and intravenous drug abuse. PMID:1956445

  6. Antimicrobial prophylaxis and outpatient management of fever...

    Science.gov Websites

    on selection and treatment as outpatients of those with fever and neutropenia. METHODS: A literature search identified relevant studies published in English. Primary outcomes...

  7. Densities of liquid metals: calcium, strontium, barium

    Microsoft Academic Search

    S. Hiemstra; D. Prins; G. Gabrielse; J. B. Van Zytveld

    1977-01-01

    We report a method of measuring the densities of liquids at intermediate temperatures which employs Archimedes' Principle in a two-sinker arrangement. This method is then used to measure the densities of pure liquid calcium, strontium, and barium. We find ?(Ca) = 1.4931 ? 1.37 × 10 T(°C) from 850 ? 950°C, ?(Sr) = 2.5547 ? 2.83 × 10 T(°C) from

  8. PhotoElastic Effect in Barium Nitrate

    Microsoft Academic Search

    S. Bhagavantam; D. Suryanarayana

    1948-01-01

    DURING the course of our investigations on photo-elasticity, we have found that single crystals of barium nitrate behave in many respects in an exceptional manner. Differences between the stress-optical constants as determined by a Babinet compensator are (q11 - q12) = - 23.81 × 10-13, (q11 - q13) = - 18.06 × 10-13 and q44 = - 1.62 × 10-13

  9. Elaboration and characterization of barium silicate thin films.

    PubMed

    Genevès, T; Domenichini, B; Imhoff, L; Potin, V; Heintz, O; Peterlé, P M; Bourgeois, S

    2008-12-01

    Room temperature depositions of barium on a thermal silicon oxide layer were performed in ultra high vacuum (UHV). In-situ X-ray photoelectron spectroscopy (XPS) analyses were carried out as well after exposure to air as after subsequent annealings. These analyses were ex-situ completed by secondary ion mass spectrometry (SIMS) profiles and transmission electron microscopy (TEM) cross-sectional images. The results showed that after air exposure, the barium went carbonated. Annealing at sufficient temperature permitted to decompose the carbonate to benefit of a barium silicate. The silicate layer was formed by interdiffusion of barium with the initial SiO2 layer. PMID:18603436

  10. The role of barium esophagography in an endoscopy world.

    PubMed

    Katzka, David A

    2014-10-01

    Barium esophagography, although an old test, remains important to the understanding of esophageal physiology and diagnosis of esophageal disorders. It provides additive and/or confirmatory information to endoscopy and is the more accurate means of yielding diagnosis. Barium esophagography allows correlation of symptoms with barium findings and with varied textures substances. It allows, particularly for oropharyngeal dysfunction, implementation therapeutic maneuvers and instructions while testing. The caveat to maintaining the benefits of barium esophagography is continuing to promote and support expertise from our radiologists in performing these studies, which has been challenged by our cost-efficient and high-tech medical society. PMID:25216903

  11. 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....

  12. 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....

  13. 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....

  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, 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....

  16. 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

  17. 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...Relief 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, 2011 CFR

    2011-07-01

    ...2011-07-01 false Posthospital outpatient dental treatment. 17.163 Section 17...Relief 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, 2010 CFR

    2010-07-01

    ...2010-07-01 false Posthospital outpatient dental treatment. 17.163 Section 17...Relief 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, 2014 CFR

    2014-07-01

    ...2014-07-01 false Posthospital outpatient dental treatment. 17.163 Section 17...Relief 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, 2012 CFR

    2012-07-01

    ...2012-07-01 false Posthospital outpatient dental treatment. 17.163 Section 17...Relief DEPARTMENT OF VETERANS AFFAIRS MEDICAL Dental Services § 17.163 Posthospital outpatient dental treatment. The Chief, Dental...

  2. Laboratory and prediction of barium sulfate scaling at high-barium formation water

    Microsoft Academic Search

    Amer Badr BinMerdhah; Abu Azam Mohd Yassin; Mazen Ahmed Muherei

    2010-01-01

    Scale formation in surface and subsurface oil and gas production equipment has been recognized to be a major operational problem. It has been also recognized as major causes of formation damage either in injection or producing wells. This study was conducted to investigate the permeability reduction caused by deposition of barium sulfate in sandstone cores from mixing of injected seawater

  3. The Outpatient Forensic Substance Abuse Profile

    Microsoft Academic Search

    James M. Cianciulli

    1993-01-01

    This study examines the reliability and validity of an instrument that is clinically useful for assessment of risk factors among chemically dependent populations in an outpatient forensic setting. It is reliable, both across time and internally, and demonstrates a high degree of user acceptance. There is good agreement between client scores and independent assessment of the same characteristics. Continued examination

  4. 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

  5. Kairos: An Out-Patient Progress Report.

    ERIC Educational Resources Information Center

    Armstrong, Betty Anne

    1983-01-01

    Evaluated the effectiveness of Kairos, a Canadian outpatient drug rehabilitation program. A survey of 43 former clients showed all made some improvement as measured by a social rating scale, and most had positive comments about the program. Clients felt they had learned coping strategies for use with future problems. (JAC)

  6. Diagnostic thoracoscopic lung biopsy: an outpatient experience

    Microsoft Academic Search

    Andrew C Chang; John Yee; Mark B Orringer; Mark D Iannettoni

    2002-01-01

    BackgroundTissue diagnosis of either interstitial lung disease or indeterminate pulmonary nodules can be obtained by either limited thoracotomy or thoracoscopic lung biopsy. Both procedures traditionally have required hospital admission. We report a series of patients undergoing outpatient thoracoscopic lung biopsy to demonstrate the safety and efficacy of this practice.

  7. Open lung biopsy as an outpatient procedure

    Microsoft Academic Search

    Christopher J Blewett; W. Frederick Bennett; John D Miller; John D Urschel

    2001-01-01

    Background. Lung biopsies are frequently needed to diagnose diffuse interstitial lung diseases. Both limited thoracotomy (open lung biopsy) and thoracoscopy can be used for lung biopsies, but both procedures have traditionally required hospital admission. We report a series of patients that underwent outpatient open lung biopsy to show the safety and effectiveness of this practice.Methods. We reviewed records of ambulatory,

  8. Tobacco Smoking in Adolescent Psychiatric Outpatients

    ERIC Educational Resources Information Center

    Ditchburn, K. Marie; Sellman, J. Douglas

    2013-01-01

    Three main aims of this study were to ascertain the prevalence rate of smoking among adolescent psychiatric outpatients; estimate smokers' degree of nicotine dependence; and investigate the relationship between smoking and common mental health disorders. Face-to-face interviews were conducted on 93 patients ages 13-18 presenting to an adolescent…

  9. Excessive barium and radium 226 in Illinois drinking water

    Microsoft Academic Search

    Calabrese

    1977-01-01

    The Illinois EPA has found 16 cities with drinking water containing barium concentrations exceeding the current state and federal drinking water standard of 1 mg\\/l. In addition, the presence of varying amounts of alpha activity reveal traces of radium-226 in many Illinois water wells. Increased levels of radium and barium are concurrent with a rise in cancer rates in the

  10. 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 calcium titanate crystals, Ba0.77Ca0.23TiO3, in the temperature range between 4.2 K and 300 K are reported of crystals from barium titanate (BT) family make them promising candidates for various applications

  11. 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.

  12. 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.

  13. Scattering lengths of calcium and barium isotopes

    E-print Network

    Dammalapati, U; Knoop, S

    2011-01-01

    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.

  14. 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.

  15. Topical administration of 5-aminosalicylic acid enemas in patients with ulcerative colitis. Studies on rectal absorption and excretion.

    PubMed Central

    Campieri, M; Lanfranchi, G A; Boschi, S; Brignola, C; Bazzocchi, G; Gionchetti, P; Minguzzi, M R; Belluzzi, A; Labò, G

    1985-01-01

    5-aminosalicylic acid (5-ASA) is a new treatment for patients suffering from ulcerative colitis but only limited information is available about its rectal absorption. We therefore studied seven patients with ulcerative colitis in remission, and five with active disease to determine acetylated and free 5-ASA plasma concentrations and urinary acetyl 5-ASA after the administration of three different types of enemas: (2 g 5-ASA/100 ml, 4 g/100 ml, and 200 ml). In patients in remission urinary acetyl 5-ASA excretion was dose and volume dependent (p less than 0.01; p less than 0.05) but this correlation was absent in active disease. Because aminosalicylates are usually eliminated through the kidney, these low values (10% in active disease and 19% in those in remission) suggest that the beneficial action may be local. Urinary recovery was significantly lower in patients with active disease (p less than 0.01; p less than 0.02). No accumulation of 5-ASA was found in plasma after repeated daily administration. PMID:3979912

  16. Effect of hydrothermal synthesis environment on the particle morphology, chemistry and magnetic properties of barium hexaferrite

    Microsoft Academic Search

    A. Ataie; M. R. Piramoon; I. R. Harris; C. B. Ponton

    1995-01-01

    Barium nitrate and iron nitrate have been used as precursors in the hydrothermal synthesis of barium hydroxide, iron oxide and barium hexaferrite sols under specified standard synthesis conditions (temperature, time, stirring, alkali concentration, amount of water and heating rate) as a function of the base species used during synthesis. The hydrothermal synthesis of barium hydroxide and iron oxide has been

  17. 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. INTRODUCTION Doped perovskites, such as barium cerate (BaCeO3), strontium cerate (SrCeO3), and barium zirconate

  18. Measuring inpatient and outpatient costs: A cost-function approach

    PubMed Central

    Carey, Kathleen; Stefos, Theodore

    1992-01-01

    In this article, the authors estimate a multiple-output cost function for a sample of 2,235 hospitals during the period 1984-88 to disaggregate total costs into inpatient and outpatient components. The results suggest that outpatient cost growth is roughly proportional to that of inpatient cost, despite much higher relative growth in revenues and utilization on the outpatient side. The stability in the outpatient/inpatient cost ratio implies that the increase in the outpatient-to-inpatient utilization ratio was offset by a decline in their relative unit costs. PMID:10127447

  19. Repricing Specialty Hospital Outpatient Services Using Ambulatory Surgery Center Prices

    PubMed Central

    Healy, Deborah; Cromwell, Jerry; Thomas, Frederick G.

    2007-01-01

    This article explores whether Medicare pays more for the same outpatient services provided in an acute specialty hospital than in an ambulatory surgery center (ASC). How financially dependent a specialty hospital is on ASC-eligible services is also investigated. Medicare outpatient claims in 43 orthopedic and 12 surgical specialty hospitals in 2004 were repriced using ASC pricing software. Payments for the same surgical procedure were 43 and 64 percent higher in specialty surgical and orthopedic outpatient departments, respectively, compared with simulated ASC payments. Non-ASC-eligible outpatient services were 18-35 percent of all Medicare outpatient payments varying by type of specialty hospital. PMID:18435225

  20. 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.

  1. Outpatient electronic records. Tackling the challenges.

    PubMed

    Siwicki, B

    1997-05-01

    Outpatient providers have yet to widely embrace computer-based patient records systems. Many clinics and group practices are still learning about the technology, rather than actually implementing it. But pioneering organizations are reaping many benefits from having patient records on-line. And they're learning what works--and what doesn't--when making the transition from paper to electronic records. PMID:10167251

  2. Airway management in the outpatient setting.

    PubMed

    Luba, Katarzyna; Apfelbaum, Jeffrey L; Cutter, Thomas W

    2013-07-01

    Most outpatient cosmetic procedures are now performed in surgeons' offices, with patients under local anesthesia and minimal intravenous sedation. Sedation at any level beyond minimal creates the risk of airway obstruction and ventilatory depression, which can result in irreversible brain injury or death within minutes. This article discusses appropriate patient and procedure selection, and outlines the personnel, equipment, and techniques necessary to avoid such outcomes. PMID:23830749

  3. Improving outpatient clinic efficiency using computer simulation.

    PubMed

    Clague, J E; Reed, P G; Barlow, J; Rada, R; Clarke, M; Edwards, R H

    1997-01-01

    To assess and plan alterations in outpatient clinic structure, produces a computer simulation of an outpatient clinic based on detailed time and role measurements from the authors' clinic. The stimulation which used an object-oriented design method is able to indicate the impact of changes in clinic structure using patient and doctor waiting times in clinic as endpoint measures. The effects of changes in clinic size, consultation time, patient mix, appointment scheduling and non-attendance were examined. We found that patient waiting time could be shortened considerably by using an optimizing appointment scheduler to determine appointment intervals. Clinic mix influences patient waiting time, which was shorter with a 1 in 4 ratio of new to follow-up patients. In mixed clinics, new patients appointments are optimally spread throughout the clinic to reduce patient waiting time. In all new or all follow-up clinics, waiting time is improved if the appointment interval reflects the consultation time. Computer modelling can help in optimizing clinic management so improving the delivery of care in outpatient services. PMID:10173361

  4. 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.

  5. A high-altitude barium radial injection experiment

    NASA Technical Reports Server (NTRS)

    Wescott, E. M.; Stenbaek-Nielsen, H. C.; Hallinan, T. J.; Deehr, C. S.; Romick, G. J.; Olson, J. V.; Roederer, J. G.; Sydora, R.

    1980-01-01

    A rocket launched from Poker Flat, Alaska, carried a new type of high-explosive barium shaped charge to 571 km, where detonation injected a thin disk of barium vapor with high velocity nearly perpendicular to the magnetic field. The TV images of the injection are spectacular, revealing three major regimes of expanding plasma which showed early instabilities in the neutral gas. The most unusual effect of the injection is a peculiar rayed barium-ion structure lying in the injection plane and centered on a 5 km 'black hole' surrounding the injection point. Preliminary electrostatic computer simulations show a similar rayed development.

  6. 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.

  7. 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.

  8. 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.

  9. 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.

  10. 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

  11. Prompt ionization in the CRIT II barium releases

    Microsoft Academic Search

    R. B. Torbert; C. A. Kletzing; K. Liou; D. Rau

    1992-01-01

    Observations of electron and ion distributions inside a fast neutral barium jet in the ionosphere show significant fluxes within 4 km of release, presumably related to beam plasma instability processes involved in the Critical Ionization Velocity (CIV) effect. Electron fluxes exceeding 5 x 10 exp 12\\/sq cm-str-sec-keV were responsible for ionizing both the streaming barium and ambient oxygen. Resulting ion

  12. Outpatient payment reform: the next budget-cutting target.

    PubMed

    Burke, M

    1990-01-20

    Medicare Part A and physician fees are still the top concern of congressional budget cutters. But outpatient hospital payments are rapidly moving up on the cost-containment agenda. Under FY 1990 budget reconciliation, outpatient Medicare capital payments were reduced for the first time, and President Bush's FY 1991 budget reportedly recommends a 10 percent across-the-board cut in Medicare hospital outpatient payments. PMID:2403968

  13. Multisource feedback analysis of pediatric outpatient teaching

    PubMed Central

    2013-01-01

    Background This study aims to evaluate the outpatient communication skills of medical students via multisource feedback, which may be useful to map future directions in improving physician-patient communication. Methods Family respondents of patients, a nurse, a clinical teacher, and a research assistant evaluated video-recorded medical students’ interactions with outpatients by using multisource feedback questionnaires; students also assessed their own skills. The questionnaire was answered based on the video-recorded interactions between outpatients and the medical students. Results A total of 60 family respondents of the 60 patients completed the questionnaires, 58 (96.7%) of them agreed with the video recording. Two reasons for reluctance were “personal privacy” issues and “simply disagree” with the video recording. The average satisfaction score of the 58 students was 85.1 points, indicating students’ performance was in the category between satisfied and very satisfied. The family respondents were most satisfied with the “teacher”s attitude,“ followed by ”teaching quality”. In contrast, the family respondents were least satisfied with “being open to questions”. Among the 6 assessment domains of communication skills, the students scored highest on “explaining” and lowest on “giving recommendations”. In the detailed assessment by family respondents, the students scored lowest on “asking about life/school burden”. In the multisource analysis, the nurses’ mean score was much higher and the students’ mean self-assessment score was lower than the average scores on all domains. Conclusion The willingness and satisfaction of family respondents were high in this study. Students scored the lowest on giving recommendations to patients. Multisource feedback with video recording is useful in providing more accurate evaluation of students’ communication competence and in identifying the areas of communication that require enhancement. PMID:24180615

  14. Barium determination in gastric contents, blood and urine by inductively coupled plasma mass spectrometry in the case of oral barium chloride poisoning.

    PubMed

    ?ukasik-G??bocka, Magdalena; Sommerfeld, Karina; Han?, Anetta; Grzegorowski, Adam; Bara?kiewicz, Danuta; Gaca, Micha?; Zieli?ska-Psuja, Barbara

    2014-01-01

    A serious case of barium intoxication from suicidal ingestion is reported. Oral barium chloride poisoning with hypokalemia, neuromuscular and cardiac toxicity, treated with intravenous potassium supplementation and hemodialysis, was confirmed by the determination of barium concentrations in gastric contents, blood, serum and urine using the inductively coupled plasma mass spectrometry method. Barium concentrations in the analyzed specimens were 20.45 µg/L in serum, 150 µg/L in blood, 10,500 µg/L in urine and 63,500 µg/L in gastric contents. Results were compared with barium levels obtained from a non-intoxicated person. PMID:24794066

  15. Morphologic and morphometric analyses of acetic acid-induced colitis in rats after treatment with enemas from Myracrodruon urundeuva Fr. All. (Aroeira do Sertão).

    PubMed

    Rodrigues, Lusmar Veras; Ferreira, Francisco Valdeci; Regadas, F Sérgio P; Matos, Délcio; Viana, Glauce Socorro de Barros

    2002-05-01

    The present work showed the effects of Myracrodruon urundeuva Fr. All., popularly known as 'aroeira' (AE), in the form of enemas prepared from the stem bark, on several morphologic and morphometric parameters after acetic acid-induced colitis in rats. Enemas from 5-ASA were used as standard while the vehicle, carboxymethylcellulose, was used as a control. The results of the morphological evaluation showed that on day 1 acetic acid produced significantly more necrosis in the groups treated with AE (10% and 20%) or 5-ASA than the controls. However, on day 60, there were more caliciform and absorptive cells in the treated groups compared with the controls. A significantly higher number of eosinophil and mononuclear cells and also collagen deposition in the controls compared with the treated groups were observed on day 60. However, a higher number of polymorphonuclear cells was detected on day 60 only in the AE treated group but not in the 5-ASA group. These data indicate that animals treated with AE or 5-ASA showed complete epithelial tissue regeneration, while in the controls chronic inflammatory exudate persisted and tissue regeneration occurred through fibrosis. PMID:12164275

  16. Complications with Outpatient Angiography and Interventional Procedures

    SciTech Connect

    Young, Noel; Chi, Ka-Kit; Ajaka, Joe; McKay, Lesa; O'Neill, Diane; Wong, Kai Ping [Department of Radiology, Westmead Hospital, Westmead, Sydney, NWS, 2145 (Australia)

    2002-03-15

    Purpose: To prospectively identify the complications, and rates of complication, in outpatient angiography and interventional procedures. Methods: There were 1050 consecutive patients, 646 men and 404 women, aged 17-89 years, with a total of 1239 procedures studied in a 2-year period, 1997 to 1999. Results: There were 560 cases of aorto-femoral angiography,resulting in 124 complications (22%), with pain or hematoma in 110.There were 206 cases of neck and cerebral angiography, resulting in 51 complications (25%), with pain and hematoma in 34, transient ischemic attack in 2 and cerebrovascular accident in 1. There were 197 interfentional procedures, with 177 being balloon dilatations, resulting in 68 complications (35%), with 2 having hematomas and 1 having hematoma/abscess requiring active treatment. There were 276 cases having various 'other' procedures (e.g., renal angiography),resulting in 65 complications (24%), with pain and hematoma in 61. No procedure-related death occurred. Eighteen cases (1.5%) had significant complications, with contrast allergy in eight. Conclusion: Outpatient angiography and intervention are relatively safe, with low significant complication rates.

  17. Electrooptic and piezoelectric measurements in photorefractive barium titanate and strontium barium niobate

    SciTech Connect

    Ducharme, S.; Feinberg, J.; Neurgaonkar, R.R.

    1987-12-01

    The authors measured the low-frequency (''unclamped'') electrooptic and piezoelectric coefficients in undoped BaTiO/sub 3/ and Sr/sub x/Ba/sub 1-x/Nb/sub 2/O/sub 6/ (chi - 0.61) crystals using interferometric techniques. The contribution of the piezoelectric effect to the Pockels measurement is discussed. For an applied ac electric field in the range 0.1-200 V/cm, the electrooptic and piezoelectric effects are linear in the magnitude of of the applied field and independent of its frequency in the range of 10 Hz-100 kHz. The unclamped electrooptic coefficients of poled BaTiO/sub 3/ single crystals are r/sub 13/ = 19.5 +- 1 pm/V and r/sub 33/ = 97 +- 7 pm/V, and for strontium barium niobate are r/sub 13/ = 47 +- 5 pm/V and r/sub 33/ = 235 +- 21 pm/V, all measured at a wavelength of 514.5 nm and at T = 23/sup 0/C. For the barium titanate samples the measured Pockels coefficient r/sub c/ identical to r/sub 33/ - (n/sub 1//n/sub 3/)/sup 3/r/sub 13/ = 79 +- 6 pm/V in good agreement with the value r/sub c/ = 76 +- 7 pm/V computed from the above values of r/sub 13/ and r/sub 33/, where n/sub 1/ and n/sub 3/ are the ordinary and extraordinary indexes of refraction, respectively. The measured piezoelectric coefficient is d/sub 23/ = +28.7 +- 2 pm/V for barium titanate, and is d/sub 23/ = +24.6 +- 2 pm/V for strontium barium niobate. They also measured the photoreflective coupling of two optical beams in the crystals, and they show that the dependence of the coupling strength on beam polarization is in fair agreement with the measured values of the Pockels coefficients.

  18. 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

  19. Chemical compositions of four barium stars

    E-print Network

    Liang, Y C; Chen, Y Q; Qiu, H M; Zhang, B

    2003-01-01

    Chemical compositions of four barium stars HD 26886, HD 27271, HD 50082 and HD 98839 are studied based on high resolution, high signal-to-noise Echelle spectra. Results show that all of them are disk stars. Their \\alpha and iron peak elements are similar to the solar abundances. The neutron-capture process elements are overabundant relative to the Solar. The heavy-element abundances of the strong Ba star HD 50082 are higher than those of other three mild Ba stars. Its mass is 1.32Msun (+0.28,-0.22Msun), and is consistent with the average mass of strong Ba stars (1.5Msun). For mild Ba star HD 27271 and HD 26886, the derived masses are 1.90Msun (+0.25,-0.20Msun) and 2.78Msun (+0.75,-0.78M_sun), respectively, which are consistent with the average mass of mild Ba stars. We also calculate the theoretical abundances of Ba stars by combining the AGB stars nucleosynthesis and wind accretion formation scenario of Ba binary systems. The comparisons between the observed abundance patterns of the sample stars with the th...

  20. Enhancement of Beam Fanning in Barium Titanate

    NASA Astrophysics Data System (ADS)

    Smith, Neil; Yarrison-Rice, Jan

    2001-10-01

    We have made initial measurements of the temporal evolution of beam fanning in photorefractive crystals with and without the use of a diffuser at the sample's input plane. Beam fanning is initiated through two beam coupling between the incident radiation and the light which scatters from impurities at or near the input plane of the crystal. An index of refraction grating is formed between input beam and the scattered beams in the +c-axis direction due to the electro-optic effect. As the index grating grows in strength more light is diverted into the scattered beams' direction. The result is a beam fan that is collected via a series of lenses and is imaged unto a CCD camera that records the build up as a function of time. A diffusing plate placed at the entrance face of the barium titanate increases the scattering of the incident beam. This allows more energy to be diverted from the propagating beam into the scattered beams and thus into the beam fan. The diffuser has been characterized with AFM measurements and typical width and heights of surface features are recorded. An imaging software package provides a method of analyzing the total intensity of the beam fan as it develops and times to steady state are determined. We find that beam fanning efficiency is enhanced with the diffuser.

  1. Prospects for Barium Tagging in Gaseous Xenon

    SciTech Connect

    Sinclair, D.; /Carleton U. /TRIUMF; Rollin, E.; /Carleton U.; Smith, J.; /Carleton U.; Mommers, A.; /Ottawa U.; Ackerman, N.; /SLAC; Aharmim, B.; /Laurentian U.; Auger, M.; /Bern U., LHEP; Barbeau, P.S.; /Stanford U., Phys. Dept.; Benitez-Medina, C.; /Colorado State U.; Breidenbach, M.; /SLAC; Burenkov, A.; /Moscow, ITEP; Cook, S.; /SLAC; Coppens, A.; /Carleton U.; Daniels, T.; /Massachusetts U., Amherst; DeVoe, R.; /Stanford U., Phys. Dept.; Dobi, A.; /Maryland U.; Dolinski, M.J.; Donato, K.; /Stanford U., Phys. Dept.; Fairbank, W., Jr.; /Colorado State U.; Farine, J.; /Laurentian U.; Giroux, G.; /Bern U., LHEP /Carleton U. /Stanford U., Phys. Dept. /Carleton U. /Laurentian U. /Carleton U. /SLAC /Indiana U. /Indiana U., CEEM /Korea U. /Stanford U., Phys. Dept. /SLAC /Alabama U. /Colorado State U. /Stanford U., Phys. Dept. /Alabama U. /SLAC /Stanford U., Phys. Dept. /Alabama U. /Massachusetts U., Amherst /SLAC /Alabama U. /SLAC /Maryland U. /Moscow, ITEP /Stanford U., Phys. Dept. /Maryland U. /Bern U., LHEP /Laurentian U. /SLAC /Maryland U.

    2012-05-03

    Tagging events with the coincident detection of a barium ion would greatly reduce the background for a neutrino-less double beta decay search in xenon. This paper describes progress towards realizing this goal. It outlines a source that can produce large quantities of Ba++ in gas, shows that this can be extracted to vacuum, and demonstrates a mechanism by which the Ba++ can be efficiently converted to Ba+ as required for laser identification. It is clear from this study that electrospray is a convenient mechanism for producing Ba++ is gas at atmospheric pressure. It is likely that the source will perform just as effectively at higher pressures. Even though the source region has water vapour and methanol vapour at the 0.3% level, there is no evidence for molecular formation. The use of TEA offers an effective method to achieve the charge state conversion. The overall design of the ion extraction from high pressure to vacuum is very similar to the scheme proposed for the final detector and this appears to work well although the efficiency is not yet determined.

  2. Psychiatric Disorders in Patients Attending a Dermatology Outpatient Clinic

    Microsoft Academic Search

    Erol Özmen

    1998-01-01

    Background: Psychiatric comorbidity in patients with skin disorders has been reported. Objective: To find out the prevalence of psychiatric disorders in dermatology outpatients and to investigate the factors that affect the psychiatric symptoms. Methods: 256 patients attending our dermatology outpatient clinic completed a 12-item General Health Questionnaire (GHQ) following their dermatologic examination. A standardized personal interview was performed to establish

  3. 38 CFR 17.93 - Eligibility for outpatient services.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ...medical services on an ambulatory or outpatient basis...services, VA shall furnish care at the VA facility...VA shall arrange for care on a fee basis, but...schedule the veteran for care where the veteran applied...VA may furnish on an ambulatory or outpatient...

  4. 38 CFR 17.93 - Eligibility for outpatient services.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ...medical services on an ambulatory or outpatient basis...services, VA shall furnish care at the VA facility...VA shall arrange for care on a fee basis, but...schedule the veteran for care where the veteran applied...VA may furnish on an ambulatory or outpatient...

  5. 38 CFR 17.93 - Eligibility for outpatient services.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ...medical services on an ambulatory or outpatient basis...services, VA shall furnish care at the VA facility...VA shall arrange for care on a fee basis, but...schedule the veteran for care where the veteran applied...VA may furnish on an ambulatory or outpatient...

  6. 38 CFR 17.93 - Eligibility for outpatient services.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ...medical services on an ambulatory or outpatient basis...services, VA shall furnish care at the VA facility...VA shall arrange for care on a fee basis, but...schedule the veteran for care where the veteran applied...VA may furnish on an ambulatory or outpatient...

  7. 38 CFR 17.93 - Eligibility for outpatient services.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ...medical services on an ambulatory or outpatient basis...services, VA shall furnish care at the VA facility...VA shall arrange for care on a fee basis, but...schedule the veteran for care where the veteran applied...VA may furnish on an ambulatory or outpatient...

  8. 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

  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. Bypassing the Local Rural Hospital for Outpatient Procedures

    ERIC Educational Resources Information Center

    Saunders, Charles; Bellamy, Gail R.; Menachemi, Nir; Chukmaitov, Askar S.; Brooks, Robert G.

    2009-01-01

    Purpose: To assess the amount of local rural hospital outpatient department (HOPD) bypass for outpatient procedures. Methods: We analyzed data on colonoscopies and upper gastrointestinal endoscopies performed in the state of Florida over the period 1997-2004. Findings: Approximately, 53% of colonoscopy and 45% of upper gastrointestinal endoscopy…

  11. 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

  12. 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

  13. 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...payments for inpatient and outpatient health care professional services and other...Payment for Inpatient and Outpatient Health Care Professional Services at...

  14. 42 CFR 410.62 - Outpatient speech-language pathology services: Conditions and exclusions.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... false Outpatient speech-language pathology services: Conditions and exclusions...410.62 Outpatient speech-language pathology services: Conditions and exclusions...pays for outpatient speech-language pathology services only if they are...

  15. 42 CFR 410.62 - Outpatient speech-language pathology services: Conditions and exclusions.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... false Outpatient speech-language pathology services: Conditions and exclusions...410.62 Outpatient speech-language pathology services: Conditions and exclusions...pays for outpatient speech-language pathology services only if they are...

  16. 42 CFR 410.62 - Outpatient speech-language pathology services: Conditions and exclusions.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... false Outpatient speech-language pathology services: Conditions and exclusions...410.62 Outpatient speech-language pathology services: Conditions and exclusions...pays for outpatient speech-language pathology services only if they are...

  17. 42 CFR 410.62 - Outpatient speech-language pathology services: Conditions and exclusions.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... false Outpatient speech-language pathology services: Conditions and exclusions...410.62 Outpatient speech-language pathology services: Conditions and exclusions...pays for outpatient speech-language pathology services only if they are...

  18. 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...

  19. 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...

  20. 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...

  1. 42 CFR 414.63 - Payment for outpatient diabetes self-management training.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ...2013-10-01 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...

  2. 42 CFR 414.63 - Payment for outpatient diabetes self-management training.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ...2010-10-01 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...

  3. 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

  4. 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.

  5. 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.

  6. New muscle relaxants in outpatient anesthesiology.

    PubMed

    Goldberg, M; Rosenberg, H

    1987-01-01

    The ideal neuromuscular blocking drug for dental and other outpatient procedures would be nondepolarizing (therefore reversible), highly potent, have a rapid onset and short duration of action, be highly specific for the nicotinic acetylcholine receptor, be eliminated independently of renal or hepatic metabolism, and have minimal side effects such as tachycardia and histamine release. The newer neuromuscular blocking drugs vecuronium and atracurium approach this ideal much more closely than the older drugs curare, metocurine, and gallamine. Aside from considerations of slightly higher cost, the neuromuscular blocking agents of choice remain succinylcholine for rapid, short-lived paralysis, vecuronium and atracurium for relaxation of 15- to 60-minute duration and when cardiovascular stability is vital, and pancuronium for longer surgical procedures. Vecuronium and atracurium have achieved and will continue to achieve predominance in the anesthetic management of the short-procedure patient. PMID:3542610

  7. Radiation dose in mass screening for gastric cancer with high-concentration barium sulfate compared with moderate-concentration barium sulfate.

    PubMed

    Yamamoto, K; Azuma, M; Kuroda, C; Kubo, T; Yabunaka, K; Yamazaki, H; Katsuda, T; Takeda, Y

    2009-06-01

    Recently, high-concentration barium sulfate has been developed and is used in many medical facilities. This study compared radiation dose using high-concentration and moderate-concentration barium sulfate. The dose was evaluated with an experimental method using a gastric phantom and with a clinical examination. In the former, the dose and X-ray tube load were measured on the phantom with two concentrations of barium sulfate. In the latter, the fluoroscopic dose-area product (DAP), the radiographic DAP and their sum, the total DAP, were investigated in 150 subjects (112 males, 38 females) treated with both concentrations of barium sulfate. The effective dose was calculated by the software of PCXMC in every case. The results of the experimental evaluation indicated that the effective dose and X-ray tube load were greater with high-concentration barium sulfate than with moderate-concentration barium sulfate (p < 0.05). The results of the clinical evaluation indicated that the fluoroscopic DAP was greater with moderate-concentration barium sulfate than with high-concentration barium sulfate (p < 0.05), but the radiographic DAP was quite the reverse, so the total DAP and effective dose were almost same with both concentrations of barium sulfate. We conclude that high-concentration barium sulfate does not increase radiation dose in mass screening for gastric cancer. PMID:19623859

  8. [Pure analgesics in a rheumatological outpatient clinic

    PubMed

    Maio, T.; Trezzi, P.; Cimmino, M. A.

    2001-01-01

    OBJECTIVE: Pure analgesics are only rarely used by Italian clinicians and this holds true also for rheumatologists. This work is concerned with an evaluation of the use of analgesics in a rheumatological outpatient clinic during the period 1989-1999. METHODS: The records of 1705 patients consecutively seen at the clinic were downloaded on a specifically built website. RESULTS: 4469 visits were considered. In 260 of them (5.8%), analgesics were prescribed to 234 (13.7%) patients. The number of patients with a prescription of analgesics steadily increased during the years 1989-1999. The diagnoses in patients assuming analgesics were: osteoarthritis (47.1%), inflammatory arthritis (24.2%), soft tissue rheumatisms (13.7%), nonspecific arthralgia/myalgia (7.5%), and connective tissue diseases (2.6%). Peripheral analgesics were used in 188 (82.5%) patients and central analgesics were used in the remaining 40 patients (17.5%). Analgesic drugs were used mainly in degenerative joint conditions. The indications for analgesics in the 55 patients with inflammatory arthritis were: (a) partial or total remission of arthritis; for this reason non-steroidal anti-inflammatory drugs were no longer required in 18 patients; (b) to increase the analgesic effect of NSAIDs in 23 patients; (c) contraindications to NSAIDs in 14 patients (renal failure in 2 patients, gastritis in 10, allergy and bleeding in the remaining two). CONCLUSIONS: About 14% of our outpatients were treated with analgesics with an increasing trend in the examined period. The main indications for analgesics are degenerative conditions but they can be used also in selected patients with arthritis. PMID:12163885

  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. Technical development: CT colonography without cathartic cleansing and with barium as the sole tagging agent

    Microsoft Academic Search

    Philippe Lefere; Stefaan Gryspeerdt; Marc Baekelandt; Bartel Van Holsbeeck

    2004-01-01

    The purpose of this study was to perform CT colonography (CTC) without cathartic colon cleansing. Four groups of 3 patients were prepared the day before CTC with a dedicated low residue diet, a hydration control allowing 2 liters of fluid intake and barium as tagging agent. Four different barium regimens were investigated. Groups 1 and 3 ingested barium over 1

  11. 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

  12. 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

  13. 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

  14. 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

  15. 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

  16. 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

  17. 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

  18. 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

  19. 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

  20. 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 as the predominant secondary phase and the barium zirconate reverting to an undoped composition. From the relative conductivity. Barium zirconate, specifically yttrium-doped BaZrO3, has attracted particular attention amongst

  1. Enhanced Sintering of Yttrium-Doped Barium Zirconate by Addition of ZnO

    E-print Network

    Haile, Sossina M.

    Enhanced Sintering of Yttrium-Doped Barium Zirconate by Addition of ZnO Peter Babilo and Sossina M properties of doped barium zirconate have been examined. With the use of zinc ox- ide as a sintering aid, Ba of the material under flowing CO2 showed ZnO-modified barium zirconate to exhibit excellent chemical stability

  2. Defect Chemistry of Yttrium-Doped Barium Zirconate: A Thermodynamic Analysis of Water Uptake

    E-print Network

    Defect Chemistry of Yttrium-Doped Barium Zirconate: A Thermodynamic Analysis of Water Uptake-based SOFCs.3 Of known proton conducting oxides, yttrium-doped barium zirconate (BYZ) is particularly mobile species. Doping with trivalent yttrium onto the tetravalent zirconium in barium zirconate

  3. Prompt ionization in the CRIT II barium releases

    NASA Astrophysics Data System (ADS)

    Torbert, R. B.; Kletzing, C. A.; Liou, K.; Rau, D.

    1992-05-01

    Observations of electron and ion distributions inside a fast neutral barium jet in the ionosphere show significant fluxes within 4 km of release, presumably related to beam plasma instability processes involved in the Critical Ionization Velocity (CIV) effect. Electron fluxes exceeding 5 x 10 exp 12/sq cm-str-sec-keV were responsible for ionizing both the streaming barium and ambient oxygen. Resulting ion fluxes seem to be consistent with 1-2 percent ionization of the fast barium, as reported by optical observations, although the extended spatial distribution of the optically observed ions is difficult to reconcile with the in situ observations. When the perpendicular velocity of the neutrals falls below critical values, these processes shut off. Although these observations resemble the earlier Porcupine experimental results (Haerendel, 1982), theoretical understanding of the differences between these data and that of earlier negative experiments is still lacking.

  4. Chemical compositions of four barium stars

    E-print Network

    Y. C. Liang; G. Zhao; Y. Q. Chen; H. M. Qiu; B. Zhang

    2003-12-15

    Chemical compositions of four barium stars HD 26886, HD 27271, HD 50082 and HD 98839 are studied based on high resolution, high signal-to-noise Echelle spectra. Results show that all of them are disk stars. Their \\alpha and iron peak elements are similar to the solar abundances. The neutron-capture process elements are overabundant relative to the Solar. The heavy-element abundances of the strong Ba star HD 50082 are higher than those of other three mild Ba stars. Its mass is 1.32Msun (+0.28,-0.22Msun), and is consistent with the average mass of strong Ba stars (1.5Msun). For mild Ba star HD 27271 and HD 26886, the derived masses are 1.90Msun (+0.25,-0.20Msun) and 2.78Msun (+0.75,-0.78M_sun), respectively, which are consistent with the average mass of mild Ba stars. We also calculate the theoretical abundances of Ba stars by combining the AGB stars nucleosynthesis and wind accretion formation scenario of Ba binary systems. The comparisons between the observed abundance patterns of the sample stars with the theoretical results show that wind accretion scenario can explain the abundance patterns of HD 50082 and HD 27271 well, but fail to explain the abundances of HD 26886. It means that the mild Ba star HD 26886, with shorter orbital period (P11000 d), may be either a star with the heavy elements enriched by itself or a "true Ba" star.

  5. 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

    2015-01-01

    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 < 0.001. Volume remaining at 1 and 5 minutes was lower in III (1 m(2) ; 0-16) than I (42 m(2) ; 17-106) and II (39 m(2) ; 15-60), highlighting poorer emptying of I and II. Increasing TBE width correlated with deteriorating morphology and function from III to II to I. Symptoms poorly correlated with TBE and HRM. Prior treatment was associated with less regurgitation, faster emptying, and lower IRP. Although TBE and HRM are correlated in many respects, the wide range of their measurements observed in this study reveals a spectrum of morphology and dysfunction in achalasia that is best characterized by the combination of these studies. PMID:24649871

  6. 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

  7. Barium Tagging from nEXO Using Resonance Ionization Spectroscopy

    NASA Astrophysics Data System (ADS)

    Twelker, K.; Kravitz, S.

    nEXO is a 5-ton liquid enriched-xenon time projection chamber (TPC) to search for neutrinoless double-beta decay, designed to have the sensitivity to completely probe the inverted mass hierarchy of Majorana neutrinos. The detector will accommodate-as a background reduction technique-a system to recover and identify the barium decay product. This upgrade will allow a background-free measurement of neutrinoless double-beta decay and increase the half-life sensitivity of the experiment by at least one order of magnitude. Ongoing research and development includes a system to test barium extraction from liquid xenon using surface adsorption and Resonance Ionization Spectroscopy (RIS).

  8. Tunable dielectric properties of lead barium zirconate niobate films

    NASA Astrophysics Data System (ADS)

    Kuo, Ya-Ling; Wu, Jenn-Ming

    2006-09-01

    The effect of substitution of niobium for zirconium on tunable behavior of lead barium zirconate (PBZ) films was investigated. Lead barium zirconate niobate films were grown on Pt /Ti/SiO2/Si substrates using chemical solution deposition method. The substitution of Nb for Zr enhances tunable properties of PBZ films. The dielectric tunabilities are excellent, all higher than 45% with a maximum=60%. The substitution of Nb for Zr raises values of figure of merit (FOM) of films. The maximum FOM takes place at 5mol% Nb with a value of 90, which is about three times that of the corresponding PBZ film.

  9. Vulnerability of rural hospitals to Medicare outpatient payment reform.

    PubMed

    Mohr, P E; Franco, S J; Blanchfield, B B; Cheng, C M; Evans, W 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

  10. Surveying outpatient services in the Southwest.

    PubMed

    Rich, M

    1989-04-01

    In the fall 1988, a survey of the availability of voluntary sterilization services was conducted in 5 southwestern states -- Arizona, Colorado, New Mexico, Nevada, and Utah. In each state, information was gathered on outpatient sterilization services in both the public and private sectors. Brief questionnaires were mailed to family planning clinics, private physicians, freestanding surgery centers, health maintenance organizations (HMO's), and other health care providers. This mail survey was followed with over 50 telephone interviews with outpatient sterilization providers. The were several trends in common in all 5 states. In general, vasectomies in the Southwest, as in other parts of the US, were most commonly performed in either hospital clinics or freestanding surgery centers. Several clinic administrators and private physicians reported that they provide counseling for female procedures at their offices but that the surgery is performed elsewhere. The costs for female sterilization were very high throughout the region, constituting a significant barrier to services for women without medical insurance. Only 1 provider in the 5 states reported performing tubal occlusion for less than $1000. 2 other clinics referred patients to providers who charged under $1000 -- 1 to a clinic in California and the other to a private physician in Arizona. Vasectomies were much more reasonably priced in the Southwest than in other regions of the US, tending to cost between $100-$400, depending on the provider and location. In general, vasectomies performed in clinics were less expensive than those done in private physicians' offices. Clinics often offered sliding scale fees based on the client's ability to pay. Male and female sterilization services were most widely available in urban areas. Some information is presented on the availability of abortion services in each of the 5 individual states. In Arizona, 2 Planned Parenthood clinics were successfully providing vasectomies. Arizona also was unique in the assistance it provided to low-income persons. In Colorado, low-income persons had difficulty obtaining sterilization services. The costs for female sterilization were high. Sterilizations provided by the private sector in New Mexico were expensive. Far more female than male sterilizations were performed with public funds. Services in Nevada were scarce because of high costs and a limited number of providers. Compared to the 4 other states, costs for voluntary sterilization were relatively low in Utah. PMID:12315715

  11. Outpatient competence restoration: A model and outcomes

    PubMed Central

    Johnson, Nicole R; Candilis, Philip J

    2015-01-01

    AIM: To describe a model outpatient competence restoration program (OCRP) and provide data on time to restoration of adjudicative competence. METHODS: The authors tracked the process by which individuals are referred for outpatient competence restoration (OCR) by courts in the United States capital, describing the unique requirements of American law, and the avenues available for compelling adherence. Competence to stand trial is a critical gate-keeping function of the judicial and forensic communities and assures that defendants understand courtroom procedures. OCR is therefore an effort to assure fairness and protection of important legal rights. Multi-media efforts are described that educate patients and restore competence to stand trial. These include resources such as group training, use of licensed clinicians, visual aids, structured instruments, and cinema. Aggregate data from the OCRP’s previous 4 years of OCR efforts were reviewed for demographic characteristics, restoration rate, and time to restoration. Poisson regression modeling identified the differences in restoration between sequential 45-d periods after entrance into the program. RESULTS: In the past 4 years, the DC OCRP has been successful in restoring 55 of 170 participants (32%), with an average referral rate of 35 persons per year. 76% are restored after the initial 45 d in the program. Demographics of the group indicate a predominance of African-American men with a mean age of 42. Thought disorders predominate and individuals in care face misdemeanor charges 78% of the time. Poisson regression modeling of the number attaining competence during four successive 45-d periods showed a substantial difference among the time periods for the rate of attaining competence (P = 0.0011). The three time periods after 45 d each showed a significant decrease in the restoration rate when compared to the initial 0 to 45 d period - their relative rates were only 22% to 33% as high as the rate for 0-45 d (all P-values, compared to the 0-45 d rate, were 0.013 or smaller). However, the three periods from day 45 to day 135 showed no difference among themselves (P = 0.87). CONCLUSION: The majority of restored participants were restored after 45 d, suggesting a model that may identify an optimal length of time to restoration.

  12. HEALTH EFFECTS OF HUMAN EXPOSURE TO BARIUM IN DRINKING WATER

    EPA Science Inventory

    The overall objective of this study was to examine by epidemiologic and supportive laboratory studies, the human health effects associated with ingestion of barium in drinking water exceeding the U.S. drinking water standard of 1.0 mg/l. The incidence of cardiovascular mortality ...

  13. Barium strontium titanate powders prepared by spray pyrolysis

    Microsoft Academic Search

    G. Brankovi?; Z. Brankovi?; M. S. Góes; C. O. Paiva-Santos; M. Cilense; J. A. Varela; E. Longo

    2005-01-01

    Ultasonic spray pyrolysis (SP) has been investigated for the production of the barium strontium titanate (BST) powders from the polymeric precursors. The processing parameters, such as flux of aerosol and temperature profile inside the furnace, were optimized to obtain single phase BST. The powders were characterized by the methods of X-ray diffraction analysis, SEM, EDS and TEM. The obtained powders

  14. 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

  15. 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...

  16. 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...

  17. 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 ...

  18. Changes in oxidative stress during outpatient surgery.

    PubMed

    Brown, Robert H; Risby, Terence H

    2009-03-01

    Reactive oxygen species are associated with tissue inflammation and injury. Our laboratory has demonstrated that ethane, a stable product of lipid peroxidation, in exhaled breath can be used to measure total body oxidative stress. Herein patients were studied who underwent outpatient surgery, laproscopic bilateral tubal ligation (BTL, n = 10) and anterior cruciate ligament (ACL, n = 10) repair of the knee. These surgical procedures were expected to involve mild degrees of ischemia and reperfusion. In each of these cases propofol, an intravenous anesthetic with antioxidant properties, was used. Breath ethane was measured as a biomarker of oxidative stress that occurred at reperfusion of ischemic tissue. Data were analyzed by one-way analysis of variance. Clinically relevant concentrations of propofol were unable to completely block the increase in oxidative stress following reperfusion in either of these minor surgeries. Breath ethane increased significantly after reperfusion in both the BTL (p = 0.03) and the ACL (p = 0.005) patients. Also, the increase in oxidative stress was related to the time of ischemia. PMID:21383450

  19. 38 CFR 17.161 - Authorization of outpatient dental treatment.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ...OF VETERANS AFFAIRS MEDICAL Dental Services § 17.161...may receive outpatient dental care which is medically...i.e. , is for dental condition clinically...to be complicating a medical condition currently...

  20. 38 CFR 17.161 - Authorization of outpatient dental treatment.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ...OF VETERANS AFFAIRS MEDICAL Dental Services § 17.161...may receive outpatient dental care which is medically...i.e. , is for dental condition clinically...to be complicating a medical condition currently...

  1. 38 CFR 17.161 - Authorization of outpatient dental treatment.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ...OF VETERANS AFFAIRS MEDICAL Dental Services § 17.161...may receive outpatient dental care which is medically...i.e. , is for dental condition clinically...to be complicating a medical condition currently...

  2. 38 CFR 17.161 - Authorization of outpatient dental treatment.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ...OF VETERANS AFFAIRS MEDICAL Dental Services § 17.161...may receive outpatient dental care which is medically...i.e. , is for dental condition clinically...to be complicating a medical condition currently...

  3. 38 CFR 17.161 - Authorization of outpatient dental treatment.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ...OF VETERANS AFFAIRS MEDICAL Dental Services § 17.161...may receive outpatient dental care which is medically...i.e. , is for dental condition clinically...to be complicating a medical condition currently...

  4. 76 FR 49458 - TRICARE; Hospital Outpatient Radiology Discretionary Appeal Adjustments

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-08-10

    ...or October 11, 2011 for hospitals that did not receive notification...80011- 9066. FOR FURTHER INFORMATION CONTACT: Martha M. Maxey...676-3627. SUPPLEMENTARY INFORMATION: In reviewing payments for hospital outpatient services,...

  5. 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

  6. Ultra-low temperature processing of barium tellurate dielectrics

    NASA Astrophysics Data System (ADS)

    Kwon, Do-Kyun

    Ceramics, metals and polymers have unique electrical properties that are combined for electronic devices and systems. It necessitates lower processing temperatures for ceramics to be compatible with metal and polymer systems. In this thesis, the synthesis, crystal structure, and dielectric properties of barium tellurate are studied for temperatures between 500 and 900°C. Barium tellurate dielectric ceramics (BaTe4O9, BaTe 2O5, BaTe2O6, BaTeO3, BaTeO 4, and Ba2TeO5) are extensively investigated as new LTCC (Low-Temperature Cofired Ceramics) dielectric systems integrated with low resistivity metal electrodes such as silver and aluminum for microwave application. Studies on the phase formation and crystal structure through thermal analyses (Differential Scanning Calorimetry and Thermogravimetric Analysis, DSC-TGA) and X-ray diffraction phase analysis attest that barium tellurates are formed in the temperature range of 500 ˜ 900°C, through the sequential phase formations from Te-rich to Ba-rich phases. The oxygen coordination of the tellurium ion progresses from TeO4 to TeO6 via TeO 3+1 and TeO3 with increasing barium content as confirmed by structural analysis using infrared spectroscopy. High density barium tellurate ceramics are achieved at temperatures as low as 550°C, which provides the potential to be co-fired with low-melting aluminum metal electrodes in LTCC processing. Dielectric permittivity, loss, and temperature stability of barium tellurate dielectric ceramics were measured from 100 Hz to 13 GHz. Barium tellurate ceramics exhibit excellent microwave dielectric properties with intermediate dielectric permittivities and high quality factors (Q). The dielectric properties at microwave frequencies are epsilonr = 17.5, Qxf = 54700 GHz, TCf = -90 ppm/°C for BaTe4O9, epsilonr = 21, Qxf = 50300 GHz, TCf = -51 ppm/°C for BaTe2O6, epsilonr = 10, Qxf = 34000 GHz, TCf = -54 ppm/°C for BaTeO3, and epsilonr = 17, Qx f = 49600 GHz, TCf = -124 ppm/°C for Ba 2TeO5. Co-firing studies of barium tellurate ceramics with metal electrodes establish new LTCC systems for microwave devices. Chemical compatibility of barium tellurates with silver electrodes was achieved in the barium rich compositions. Ba2TeO5 was found to be covetable with silver electrodes at 850°C by adding CuO and B2O3 as fluxing agents. During the co-firing, a thin interfacial layer of AgTe is metastable according to the thermodynamic equilibrium between the Ba2TeO5-Ag/Ag 2O pseudo-binary system. A breakthrough LTCC technology with aluminum is based upon the ultra-low processing temperature and chemical compatibility of BaTe4O 9, which enables co-firing and fabrication of multilayer ceramic capacitors (MLCCs) with aluminum inner electrodes. The aluminum base metal electrode (BME) BaTe4O9 MLCCs provide good dielectric properties of epsilonr = 17.5, TCepsilon = 100 ppm/°C, and tan delta = 2.1 x 10-3 (Q ? 500) at 1 MHz, which are suitable for the class-1 MLCCs. Aluminum microstrip ring resonators on the BaTe4O9 substrates realized good electromagnetic performance of the new materials at microwave frequency exhibiting resonant frequency of 2.97 GHz and Q factor of 278.

  7. Inpatient vs outpatient treatment for substance dependence revisited

    Microsoft Academic Search

    Helen M. Pettinati; Kathleen Meyers; Jacqueline M. Jensen; Frances Kaplan; Bradley D. Evans

    1993-01-01

    Miller and Hester's 1986 review of inpatient versus outpatient alcohol treatment studies concluded with no “justification” for inpatient treatment. Further examination of these studies revealed shortcomings such as the use of random assignment designs which excluded psychiatrically-complicated patients. Carrier Foundation's inpatient\\/outpatient study of private psychiatric patients with alcohol and\\/or cocaine dependence includes a patient-treatment matching design to address weaknesses in

  8. Outpatient management of acute mastoiditis with periosteitis in children

    Microsoft Academic Search

    A. Niv; M. Nash; J. Peiser; R. Dagan; M. Einhorn; A. Leiberman; D. M. Fliss

    1998-01-01

    Children with acute mastoiditis with periosteitis are conventionally hospitalized for parenteral antibiotics and\\/or surgical treatment. However, if possible, effective and safe outpatient treatment is desirable. During a 36-month period, outpatient parenteral antibiotic therapy (once daily i.m. ceftriaxone) was evaluated in 32 children with acute mastoiditis, with clinical evidence of periosteitis. Inclusion criteria included otomicroscopic evidence of acute otitis media (AOM),

  9. Accuracy of Neonatal Transcutaneous Bilirubin Measurement in the Outpatient Setting

    Microsoft Academic Search

    Andrea C. Wickremasinghe; Brad S. Karon; Walter J. Cook

    2011-01-01

    Objective. To evaluate the effectiveness of transcutaneous bilirubin (TcB) measurement in predicting risk for neonatal hyperbilirubinemia in outpatients. Design. Subjects were infants ?8 days old seen in an outpatient clinic. Infants discharged with high-risk (HR) or high-intermediate risk (HIR) total serum bilirubin (TSB) values and jaundiced infants were recruited. TSB and TcB (BiliChek) levels were plotted on an hour-specific nomogram

  10. 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.

  11. [Vitamins and minerals intake in hyperlipidemic outpatients].

    PubMed

    Grzybek, Agnieszka; Targosz, Urszula; Pachocka, Lucyna; K?osiewicz-Latoszek, Longina

    2005-01-01

    Dietary modification is the first line treatment in cardiovascular disease. The dietary recommendations focus on the consumption of total fat, saturated fatty acids and cholesterol, additionally the adequate intake of some vitamins and minerals is also important. The purpose of this study was to evaluate vitamins and minerals intake in hyperlipidemic outpatients. The studied group comprised 103 women, with BMI 28.4 +/- 6.77 men with BMI 29 +/- 4.8, aged 20-60 years. Dietary assessment was based on 3-d food records. The energy intake in women was 1824.1 +/- 576 kcal/d, in men 2246.6 +/- 679 kcal/d. The average intake above the RDA was for vitamin A (147.5 +/- 94% of the RDA in women, 143.2 +/- 138% in men) vitamin E (119.8 +/- 58.7%, 130.2 +/- 76%), very close for vitamin B in women (98.9 +/- 33.1%) and in men additionally for iron (134.8 +/- 56%), niacin (110 +/- 38%) and vitamin B6 (101.7 +/- 36.2%). The lowest percentage of the RDA was for calcium (62.2 +/- 38%, 69.8 +/- 40.7%) and magnesium (76.2 +/- 25%, 78.6 +/- 24.6%) in women as well as in men and for vitamin B1 in women (76.2 +/- 28%) and for vitamin B2 in men (78.4 +/- 36.6%). The percentage of the RDA for vitamin C was 85.1 +/- 49% in women and 85.2 +/- 61.8% in men. In this studied group the low intake of certain vitamins and minerals was found. The nutritional education is required, which is aimed not only at lower intake of fat, saturated fatty acids and cholesterol, but also at adequate consumption of vitamins and minerals. PMID:16602424

  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. 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

  14. Infrared Study of Superconductivity: Grating Coupled Plasmons in Yttrium BARIUM(2) COPPER(3) OXYGEN(7) and Gap Features in BARIUM(1-X) Potassium(x) Bismuth OXYGEN(3)

    Microsoft Academic Search

    Franklin John Dunmore

    1995-01-01

    The electrodynamic properties of two different superconductors, Barium Potassium Bismuth Oxide (BKBO) and Yttrium Barium Copper Oxide (YBCO) have been studied using the technique of transmission Fourier transform spectroscopy with liquid helium temperature bolometric detection. Plasmon resonances have been observed in far infrared transmission measurements on superconducting YBCO films. An Aluminum\\/Nichrome grating is used to couple infrared radiation to collective

  15. Cost of post-stroke outpatient care in Malaysia

    PubMed Central

    Hejazi, Seyed Majid Akhavan; Mazlan, Mazlina; Abdullah, Saini Jeffery Freddy; Engkasan, Julia Patrick

    2015-01-01

    INTRODUCTION This study aimed to investigate the direct cost of outpatient care for patients with stroke, as well as the relationship between the aforementioned cost and the sociodemographic and stroke characteristics of the patients. METHODS This was a cross-sectional study involving patients with first-ever stroke who were attending outpatient stroke rehabilitation, and their family members. Participants were interviewed using a structured questionnaire designed to obtain information regarding the cost of outpatient care. Stroke severity was measured using the National Institute of Health Stroke Scale. RESULTS This study comprised 49 patients (28 men, 21 women) with a mean age of 60.2 (range 35–80) years. The mean total cost incurred was USD 547.10 (range USD 53.50–4,591.60), of which 36.6% was spent on attendant care, 25.5% on medical aids, 15.1% on travel expenses, 14.1% on medical fees and 8.5% on out-of-pocket expenses. Stroke severity, age > 70 years and haemorrhagic stroke were associated with increased cost. The mean cost of attending outpatient therapy per patient was USD 17.50 per session (range USD 6.60–30.60), with travelling expenses (41.8%) forming the bulk of the cost, followed by medical fees (38.1%) and out-of-pocket expenses (10.9%). Multiple regression analysis showed that stroke severity was the main determinant of post-stroke outpatient care cost (p < 0.001). CONCLUSION Post-stroke outpatient care costs are significantly influenced by stroke severity. The cost of attendant care was the main cost incurred during the first three months after hospital discharge, while travelling expenses was the main cost incurred when attending outpatient stroke rehabilitation therapy. PMID:25715857

  16. Outpatient therapy for febrile neutropenia: clinical and economic implications.

    PubMed

    de Lalla, Fausto

    2003-01-01

    Although febrile episodes in neutropenic patients remain a potentially life-threatening complication of anticancer chemotherapy, considerable progress has been achieved in understanding this issue. Febrile neutropenic patients represent a heterogeneous population that displays a very variable risk for serious medical complications. It has also been ascertained that in low-risk patients, the standard of care can be safely and effectively shifted from traditional hospital-based, parenteral, empiric, broad-spectrum antibacterial therapy to outpatient treatment, even for the entire duration of the febrile episode. Furthermore, in the last years some risk assessment models have been developed to identify, at the onset of febrile episodes, low-risk neutropenic patients who are most likely to have a favourable outcome (and who can effectively and safely be treated on an outpatient basis). With respect to traditional hospital-based therapy, the outpatient treatment of low-risk patients is associated with several advantages, including a conspicuous cost saving. Some strategies for inpatient therapy, such as switching from intravenous to oral antibacterials and early discharge, can allow some cost containment; however, the most substantial decrease in costs can be obtained by using outpatient treatment over the entire febrile episode, especially by using oral antibacterials. In spite of the considerable number of clinical studies published over the past 20 years, only limited pharmacoeconomic data on this issue are available. Future comparative studies between outpatient and inpatient treatment of febrile neutropenia, in addition to clinical outcomes (e.g. survival, time to clinical response), should therefore include the following: (i) a detailed analysis of total costs, specifying the setting of outpatient treatment and the method of administration of antimicrobial agents (home nursing, self administration or treatment at infusion centres or at a low-care unit of the hospital); (ii) cost of inpatient treatment if outpatient therapy fails; and (iii) out-of-pocket expenses incurred by the patients. PMID:12678567

  17. Surface studies of barium and barium oxide on tungsten and its application to understanding the mechanism of operation of an impregnated tungsten cathode

    NASA Technical Reports Server (NTRS)

    Forman, R.

    1976-01-01

    Surface studies have been made of multilayer and monolayer films of barium and barium oxide on a tungsten substrate. The purpose of the investigation was to synthesize the surface conditions that exist on an activated impregnated tungsten cathode and obtain a better understanding of the mechanism of operation of such cathodes. The techniques employed in these measurements were Auger spectroscopy and work-function measurements. The results of this study show that the surface of an impregnated cathode is identical to that observed for a synthesized monolayer or partial monolayer of barium on oxidized tungsten by evaluating Auger spectra and work-function measurements. Data obtained from desorption studies of barium monolayers on a tungsten substrate in conjunction with Auger and work-function results have been interpreted to show that throughout most of its life an impreganated cathode has a partial monolayer, rather than a monolayer, of barium on its surface.

  18. [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

  19. 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

  20. Cost allocation patterns between hospital inpatient and outpatient departments.

    PubMed Central

    Carey, K

    1994-01-01

    OBJECTIVE. This study examines changes in hospitals' cost allocation patterns between inpatient and outpatient departments in response to the implementation of the prospective payment system. DATA SOURCES AND STUDY SETTINGS. The analysis was carried out using data for 3,961 hospitals obtained from the Medicare Cost Reports and from the American Hospital Association for the years 1984 through 1988. STUDY DESIGN. A total operating cost function was estimated on the two outputs of discharges and outpatient visits. The estimation results were instrumental in disaggregating costs into inpatient and outpatient components. This was done cross-sectionally for each of the five years. PRINCIPAL FINDINGS. Comparison of this cost breakdown with that of hospital revenue provides evidence of distinct patterns in which nonteaching, rural, and small hospitals increasingly allocated greater costs to outpatient departments than did large, urban, and teaching hospitals. CONCLUSIONS. The results suggest that small rural hospitals turned to the outpatient side in the face of tough economic challenges over the period of study. Because differences in cost allocation patterns occur by particular hospital category, analyses that rely on accounting cost or revenue data in order to identify cost differences among those same categories may come to erroneous conclusions. In particular, because teaching hospitals apportion costs more heavily on the inpatient side, cost allocation differences cause upward bias in the PPS medical education adjustment. PMID:8063566

  1. 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.

  2. The Skylab barium plasma injection experiments. I - Convection observations

    NASA Technical Reports Server (NTRS)

    Wescott, E. M.; Stenbaek-Nielsen, H. C.; Davis, T. N.; Peek, H. M.

    1976-01-01

    Two barium-plasma injection experiments were carried out during magnetically active periods in conjunction with the Skylab 3 mission. The high-explosive shaped charges were launched near dawn on November 27 and December 4, 1973, UT. In both cases, the AE index was near 400 gammas, and extensive pulsating auroras covered the sky. The first experiment, Skylab Alpha, occurred in the waning phase of a 1000-gamma substorm, and the second, Skylab Beta, occurred in the expansive phase of an 800-gamma substorm. In both, the convection was generally magnetically eastward, with 100-km-level electric fields near 40 mV/m. However, in the Alpha experiment the observed orientation of the barium flux tube fit theoretical field lines having no parallel current, but the Beta flux-tube orientation indicated a substantial upward parallel sheet current.

  3. Preparation of a metalorganic deposition precursor for barium titanate

    SciTech Connect

    Apblett, A.W.; Georgieva, G.D.; Raygoza-Maceda, I. [Tulane Univ., New Orleans, LA (United States)

    1994-12-31

    A new, facile preparative route for BaTiO(Ox){sub 2} has been developed (Ox=oxalate). This involves passing a solution of K{sub 2}TiO(Ox){sub 2} through an ion-exchange resin to convert it to the proteo-derivative, H{sub 2}TiO(Ox){sub 2}. Treatment of the latter with BaCl{sub 2} results in precipitation of BaTiO(Ox){sub 2} with a ratio of barium:titanium of 1:1.009. Finally, reaction of BaTiO(Ox){sub 2} with refluxing methoxyacetic acid produces an alcohol and chlorocarbon soluble ceramic precursor that may be used to prepare thin films of barium titanate by metalorganic deposition.

  4. Dielectric function for doped graphene layer with barium titanate

    NASA Astrophysics Data System (ADS)

    Martinez Ramos, Manuel; Garces Garcia, Eric; Magana, Fernado; Vazquez Fonseca, Gerardo Jorge

    2015-03-01

    The aim of our study is to calculate the dielectric function for a system formed with a graphene layer doped with barium titanate. Density functional theory, within the local density approximation, plane-waves and pseudopotentials scheme as implemented in Quantum Espresso suite of programs was used. We considered 128 carbon atoms with a barium titanate cluster of 11 molecules as unit cell with periodic conditions. The geometry optimization is achieved. Optimization of structural configuration is performed by relaxation of all atomic positions to minimize their total energies. Band structure, density of states and linear optical response (the imaginary part of dielectric tensor) were calculated. We thank Dirección General de Asuntos del Personal Académico de la Universidad Nacional Autónoma de México, partial financial support by Grant IN-106514 and we also thank Miztli Super-Computing center the technical assistance.

  5. 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

  6. 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

  7. Synthesis of barium titanate films by plasma electrolytic oxidation at room electrolyte temperature

    Microsoft Academic Search

    Chu-Tsun Wu; Fu-Hsing Lu

    2005-01-01

    Crystalline barium titanate films were directly synthesized onto Ti plates by plasma electrolytic oxidation at room temperature using barium acetate and 2 M NaOH as electrolytes. The effect of the concentration of barium acetate ranging from 0.05 M to 0.5 M on the synthesis of BaTiO3 was investigated. XRD results showed that the formation of BaTiO3 required a minimum of

  8. 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

  9. 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

  10. 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

  11. Luminescence of re 2+ (re = Sm, Yb) in barium octoborate

    Microsoft Academic Search

    Qinghua Zeng; Zhiwu Pei; Shubing Wang; Qiang Su; Shaozhe Lu

    1999-01-01

    The reduction process from trivalent to divalent state for Sm3+ and Yb3+ ions in barium borates (BaB8O13) prepared in air was observed. The luminescence properties of these divalent rare-earth ions were studied. Yb2+ shows an f-d broad emission band, due to the 4f14 ? 4f135d transition, while the Sm2+ ion shows an f ? f transition. From the spectra of

  12. Anomalous permittivity in fine-grain barium titanate

    Microsoft Academic Search

    Steven Paul Ostrander

    1997-01-01

    Fine-grain barium titanate capacitors exhibit anomalously large permittivity. It is often observed that these materials will double or quadruple the room temperature permittivity of a coarse-grain counterpart. However, aside from a general consensus on this permittivity enhancement, the properties of the fine-grain material are poorly understood. This thesis examines the effect of grain size on dielectric properties of a self-consistent

  13. Barium as a potential indicator of phosphorus in agricultural runoff.

    PubMed

    Ahlgren, Joakim; Djodjic, Faruk; Wallin, Mats

    2012-01-01

    In many catchments, anthropogenic input of contaminants, and in particular phosphorus (P), into surface water is a mixture of agricultural and sewage runoff. Knowledge about the relative contribution from each of these sources is vital for mitigation of major environmental problems such as eutrophication. In this study, we investigated whether the distribution of trace elements in surface waters can be used to trace the contamination source. Water from three groups of streams was investigated: streams influenced only by agricultural runoff, streams influenced mainly by sewage runoff, and reference streams. Samples were collected at different flow regimes and times of year and analyzed for 62 elements using ICP-MS. Our results show that there are significant differences between the anthropogenic sources affecting the streams in terms of total element composition and individual elements, indicating that the method has the potential to trace anthropogenic impact on surface waters. The elements that show significant differences between sources are strontium (p < 0.001), calcium (p < 0.004), potassium (p < 0.001), magnesium (p < 0.001), boron (p < 0.001), rhodium (p = 0.001), and barium (p < 0.001). According to this study, barium shows the greatest potential as a tracer for an individual source of anthropogenic input to surface waters. We observed a strong relationship between barium and total P in the investigated samples (R(2) = 0.78), which could potentially be used to apportion anthropogenic sources of P and thereby facilitate targeting of mitigation practices. PMID:22218189

  14. Toward remote ion-ion entanglement with barium

    NASA Astrophysics Data System (ADS)

    Noel, Thomas W.; Auchter, Carolyn; Chou, Chen-Kuan; Blinov, Boris B.

    2015-03-01

    We present work toward remote entanglement of barium ions in traps separated by a few meters. A new version of an ion trap specialized for remote entanglement is introduced. The new trap allows for highly efficient collection of ion fluorescence while simultaneously minimizing ion micromotion and aligning the trap position precisely to the focus of an in-vacuum parabolic mirror by using a set of bias electrodes and a piezoelectric micro-positioning system. The success rate of the remote entanglement procedure depends strongly on the efficiency with which ion fluorescence can be coupled into an optical fiber. Characterization of our system in terms of ion fluorescence collection and fiber coupling efficiency is presented. Results demonstrating entanglement between a single barium ion and single spontaneously emitted photons are shown. The entanglement fidelity of the ion-photon state is measured to be 0.84(1) and a CHSH Bell signal of 2.303(36) finds violation of the CHSH version of the Bell inequality by over eight standard deviations. Barium's relatively long wavelength transitions make it an ideal candidate for our longer term goal of remote entanglement of ions separated by a kilometer or more. Such long distance remote entanglement should allow for a loophole-free verification of the violation of the Bell inequality.

  15. Structural properties of barium strontium titanate films grown under different technological conditions

    NASA Astrophysics Data System (ADS)

    Tumarkin, A. V.; Al'myashev, V. I.; Razumov, S. V.; Gaidukov, M. M.; Gagarin, A. G.; Altynnikov, A. G.; Kozyrev, A. B.

    2015-03-01

    The structural properties of ferroelectric barium strontium titanate films with different compositions prepared under different deposition conditions have been investigated. It has been shown that the deposition temperature directly affects the phase and component compositions of the films, crystal lattice parameters, and crystallite sizes. At a deposition temperature of approximately 600°C, impurity phases of strontium polytitanates are formed in addition to the barium strontium titanate phase. An increase in the deposition temperature to 880°C leads to a barium deficiency as compared to the sputtering target. The deposition temperature providing a stoichiometric transfer of the component composition of the target into the barium strontium titanate film has been estimated.

  16. Outpatient health care statistics data warehouse--logical design.

    PubMed

    Natek, S

    1999-01-01

    Outpatient Health Care Statistics on a state level is a central point where all relevant statistic data are collected from various sources from all over the country. Various and complex requirements for processing and reporting data makes Outpatient Health Care Statistics on a state level a perfect example for efficient implementing of Data warehouse technology. The research investigates logical design of data warehouse with a special attention on a different data modeling technique in various phases of a logical data warehouse design. The research shows that a requirement for processing statistical data determines the design decision and thus the scope and semantic value of final data warehouse. PMID:10724925

  17. Walking a tightrope: case management services and outpatient commitment.

    PubMed

    Sullivan, W Patrick; Carpenter, Jenneth; Floyd, Destinee F

    2014-01-01

    Effective case managers in community mental health are successful at forging a working alliance with recipients. This article explores one key aspect of case management practice, serving involuntary clients, specifically those on outpatient commitment orders. In 19 intensive interviews, a subset of a larger study, case managers shared their perceptions of the utility of outpatient commitment with a focus on how such orders impacted the professional relationship. We argue that the use of advance psychiatric directives and shared decision-making processes can reduce the need for coercive practice. PMID:25222837

  18. 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

  19. Outpatient treatment of mentally disordered offenders in Austria.

    PubMed

    Knecht, G; Schanda, H; Berner, W; Morawitz, I; Haubenstock, E

    1996-01-01

    The mental health system is faced with a growing number of MDOs with treatment orders. For more than 90% of our sample of 157 discharged irresponsible MDOs a mandatory outpatient treatment was ordered. Considering the fact that half of these patients are transferred after discharge to institutions like psychiatric hospitals or nursing homes (Leygraf, 1988), institutional as well as outpatient treatment options are needed (Silver & Tellefsen, 1991). Within the Austrian mental health system here is an enormous lack of post-discharge treatment facilities for forensic patients (Meise, Rossler, & Hinterhuber, 1994). Furthermore, the existing structures obviously do not meet the special needs of forensic patients. Although this point of view is shared by the psychiatric hospitals and their contentment with the settings for forensic outpatient treatment was low, only one hospital intended conceptional change and modifications. Facing the reality that the same psychiatric hospital authorities complained that they could not release MDOs from an inpatient status because of inappropriate outpatient facilities, the responsibility for forensic patients seems to be projected from the medical to the legal system. This can be seen as a symptom of the tendency to a step wise and long-standing exile of forensic patients from the mental health system. Actually, forensic patients were for various reasons refused by mental health professionals and could not get psychotherapy, medication or adequate psychosocial care. A possible answer to these problems is to establish institutionalized outpatient facilities in the "hybrid" gap between the legal and mental health system (Lamb, Weinberger, & Gross, 1988). The new outpatient clinic in Vienna deals with rejected treatment-order patients, most of them with additional treatment problems such as impulsivity, substance abuse, and mental impairment (Cote & Hodgins, 1990). The special structure of the institution (i.e., a multiprofessional team that offers a wide and easily accessible spectrum of interventions, the realization of individual treatment programs with psychotherapeutic and psychosocial as well as biological aspects, and the long-term personal continuity of care by staff members with forensic psychiatric skills) promoted the experience that after some time half of the patients came on a voluntary basis (Fenell, 1992; Winick, 1994). Some pressure by the court was an efficient way to guarantee regular treatment for patients with personality disorders and perversions. The model of a special, structured, multiprofessional outpatient clinic is successful, but the role of such complementary pilot institutions is ambiguous. Simultaneously, the deficit of adequate outpatient care for MDOs has to be opposed by stopping the unacceptable withdrawal of general psychiatry from the forensic sector. PMID:8929662

  20. Different methods for the induction of labour in outpatient settings

    PubMed Central

    Dowswell, Therese; Kelly, Anthony J; Livio, Stefania; Norman, Jane E; Alfirevic, Zarko

    2014-01-01

    Background Induction of labour is carried out for a variety of indications and using a range of pharmacological, mechanical and other methods. For women at low risk, some methods of induction of labour may be suitable for use in outpatient settings. Objectives To examine pharmacological and mechanical interventions to induce labour in outpatient settings in terms of feasibility, effectiveness, maternal satisfaction, healthcare costs and, where information is available, safety. The review complements existing reviews on labour induction examining effectiveness and safety. Search methods We searched the Cochrane Pregnancy and Childbirth Group’s Trials Register (December 2009) and reference lists of retrieved studies. Selection criteria We included randomised controlled trials examining outpatient cervical ripening or induction of labour with pharmacological agents or mechanical methods. Data collection and analysis Two authors independently extracted data and assessed eligible papers for risk of bias. We checked all data after entry into review manager software. Main results We included 28 studies with 2616 women examining different methods of induction of labour where women received treatment at home or were sent home after initial treatment and monitoring in hospital. Studies examined vaginal and intracervical PGE2, vaginal and oral misoprostol, isosorbide mononitrate, mifepristone, oestrogens, and acupuncture. Overall, the results demonstrate that outpatient induction of labour is feasible and that important adverse events are rare. There was no strong evidence that agents used to induce labour in outpatient settings had an impact (positive or negative) on maternal or neonatal health. There was some evidence that, compared to placebo or no treatment, induction agents reduced the need for further interventions to induce labour, and shortened the interval from intervention to birth. We were unable to pool results on outcomes relating to progress in labour as studies tended to measure a very broad range of outcomes. There was no evidence that induction agents increased interventions in labour such as operative deliveries. Only two studies provided information on women’s views about the induction process, and overall there was very little information on the costs to health service providers of different methods of labour induction in outpatient settings. Authors’ conclusions Induction of labour in outpatient settings appears feasible. We do not have sufficient evidence to know which induction methods are preferred by women, or the interventions that are most effective and safe to use in outpatient settings. PMID:20687092

  1. Photoselective vaporization of the prostate in office and outpatient settings.

    PubMed

    Rosenthal, Brian D; DiTrolio, Joseph V

    2012-04-01

    The 980 nm/1470 nm diode laser represents the latest in laser technology for photovaporization of the prostate. Surgeons have already used this device in both inpatient and outpatient (office and ASC) setting to produce transurethral resection of the prostate (TURP) like lesions-albeit with fewer complications than traditional methods. The objective of this article is to report the techniques we used to demonstrate its efficacy and safety of the Evolve Dual (biolitec Inc., East Longmeadow, MA, USA) system in an outpatient surgery type setting. PMID:22512971

  2. 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

    ...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...

  3. 76 FR 15349 - Fiscal Year 2010 Cost of Outpatient Medical, Dental, and Cosmetic Surgery Services Furnished by...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-03-21

    ...Year 2010 Cost of Outpatient Medical, Dental, and Cosmetic Surgery Services...persons for the cost of outpatient medical, dental and cosmetic surgery services...services provided. The outpatient medical and dental rates referenced are...

  4. 77 FR 69504 - Calendar Year 2012 Cost of Outpatient Medical and Dental Services Furnished by Department of...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-11-19

    ...Year 2012 Cost of Outpatient Medical and Dental Services Furnished by Department...persons for the cost of outpatient medical and dental services furnished by military...services provided. The outpatient medical and dental rates referenced are...

  5. 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

    ...Year 2011 Cost of Outpatient Medical, Dental, and Cosmetic Surgery Services...persons for the cost of outpatient medical, dental, and cosmetic surgery services...services provided. The outpatient medical, dental, and cosmetic surgery...

  6. 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

    ...Year 2013 Cost of Outpatient Medical, Dental, and Cosmetic Surgery Services...persons for the cost of outpatient medical, dental and cosmetic surgery services...provided. The CY13 Outpatient Medical, Dental, and Cosmetic Surgery...

  7. 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...

  8. 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

    ...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...

  9. 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

    ...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...

  10. 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

    ...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...

  11. Separation of lanthanum, hafnium, barium and radiotracers yttrium-88 and barium-133 using crystalline zirconium phosphate and phosphonate compounds as prospective materials for a Ra-223 radioisotope generator.

    PubMed

    Möller, Teresia; Bestaoui, Naima; Wierzbicki, Melissa; Adams, Todd; Clearfield, Abraham

    2011-07-01

    Crystalline hybrid organic/inorganic ion exchangers based on zirconium phosphate and phosphonate compounds were evaluated for application in radium-223 generator for radiopharmaceutical applications. Various compositions were synthesized and the selectivity of these materials was determined for inactive lanthanum, hafnium and barium, and radiotracers yttrium-88 and barium-133. The hybrid materials show very efficient lanthanum/barium separation; the response for zirconium phosphate was even better. A small-scale column loaded with pelletized zirconium phosphate compound demonstrated excellent retention of (88)Y and release of (133)Ba. PMID:21421323

  12. 42 CFR 447.321 - Outpatient hospital and clinic services: Application of upper payment limits.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... § 447.321 Outpatient hospital and clinic services: Application...outpatient services furnished by hospitals and clinics within one of...government-owned or operated hospitals—March 19, 2002. (2...report annually the following information to CMS: (1) The...

  13. 42 CFR 413.123 - Payment for screening mammography performed by hospitals on an outpatient basis.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ...2013-10-01 false Payment for screening mammography performed by hospitals on an outpatient...413.123 Payment for screening mammography performed by hospitals on an outpatient...determining Medicare payment for screening mammographies performed by hospitals. (b)...

  14. 42 CFR 413.123 - Payment for screening mammography performed by hospitals on an outpatient basis.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ...2014-10-01 false Payment for screening mammography performed by hospitals on an outpatient...413.123 Payment for screening mammography performed by hospitals on an outpatient...determining Medicare payment for screening mammographies performed by hospitals. (b)...

  15. 42 CFR 413.123 - Payment for screening mammography performed by hospitals on an outpatient basis.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ...2011-10-01 false Payment for screening mammography performed by hospitals on an outpatient...413.123 Payment for screening mammography performed by hospitals on an outpatient...determining Medicare payment for screening mammographies performed by hospitals. (b)...

  16. 42 CFR 413.123 - Payment for screening mammography performed by hospitals on an outpatient basis.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ...2010-10-01 false Payment for screening mammography performed by hospitals on an outpatient...413.123 Payment for screening mammography performed by hospitals on an outpatient...determining Medicare payment for screening mammographies performed by hospitals. (b)...

  17. 42 CFR 413.123 - Payment for screening mammography performed by hospitals on an outpatient basis.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ...2012-10-01 false Payment for screening mammography performed by hospitals on an outpatient...413.123 Payment for screening mammography performed by hospitals on an outpatient...determining Medicare payment for screening mammographies performed by hospitals. (b)...

  18. 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...payments for inpatient and outpatient health care professional services and other...reasonable. Payment methodology for health care professional services...

  19. 42 CFR 410.141 - Outpatient diabetes self-management training.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ...2010-10-01 2010-10-01 false Outpatient diabetes self-management training. 410.141 ...MEDICAL INSURANCE (SMI) BENEFITS Outpatient Diabetes Self-Management Training and Diabetes Outcome Measurements § 410.141...

  20. 42 CFR 410.141 - Outpatient diabetes self-management training.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ...2014-10-01 2014-10-01 false Outpatient diabetes self-management training. 410.141 ...MEDICAL INSURANCE (SMI) BENEFITS Outpatient Diabetes Self-Management Training and Diabetes Outcome Measurements § 410.141...

  1. 42 CFR 410.141 - Outpatient diabetes self-management training.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ...2011-10-01 2011-10-01 false Outpatient diabetes self-management training. 410.141 ...MEDICAL INSURANCE (SMI) BENEFITS Outpatient Diabetes Self-Management Training and Diabetes Outcome Measurements § 410.141...

  2. 42 CFR 410.141 - Outpatient diabetes self-management training.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ...2012-10-01 2012-10-01 false Outpatient diabetes self-management training. 410.141 ...MEDICAL INSURANCE (SMI) BENEFITS Outpatient Diabetes Self-Management Training and Diabetes Outcome Measurements § 410.141...

  3. 42 CFR 410.141 - Outpatient diabetes self-management training.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ...2013-10-01 2013-10-01 false Outpatient diabetes self-management training. 410.141 ...MEDICAL INSURANCE (SMI) BENEFITS Outpatient Diabetes Self-Management Training and Diabetes Outcome Measurements § 410.141...

  4. Outpatient Assessment of Neurovisual Functions in Children with Cerebral Palsy

    ERIC Educational Resources Information Center

    Barca, Laura; Cappelli, Francesca R.; Di Giulio, Paola; Staccioli, Susanna; Castelli, Enrico

    2010-01-01

    This study examined the feasibility of the Atkinson Battery for Child Development for Examining Functional Vision (Atkinson, Anker, Rae, et al., 2002) to evaluate neurovisual functions of children with neurodevelopmental disorders in outpatient setting. A total of 90 patients underwent a comprehensive evaluation. Among these, a group of 33…

  5. 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…

  6. Dysfunctional Attitudes and Suicidal Ideation in Psychiatric Outpatients.

    ERIC Educational Resources Information Center

    Beck, Aaron T.; And Others

    1993-01-01

    Administered Dysfunctional Attitude Scale (DAS), Beck Depression Inventory (BDI), Hopelessness Scale (BHS), Self-Concept Test (BST), and Scale for Suicide Ideation (SSI) to 908 psychiatric outpatients. Found that none of DAS subscales discriminated ideators and nonideators or was significantly related to SSI total scores of suicide ideators after…

  7. Outpatient ureteroscopy in ureteral calculi: Comparison of 4 different lithotriptors

    Microsoft Academic Search

    Jorge Moreno Aranda; Guillermo Montoya Martínez; Juan Francisco Lizárraga Salas; Ricardo Agustín; Leal Marroquín

    Although ureteroscopy has become a routine procedure in most urologic centers it is still mainly done as an inpatient procedure. Since 1992 we have done our ureteroscopies as an outpatient procedure. We report 186 consecutive cases of patients treated endoscopically for ureteral calculi using an 8.5 Fr rigid ureteroscope and separated into four groups according to the fragmentation device: 1)

  8. Managing an outpatient parenteral antibiotic therapy team: challenges and solutions

    PubMed Central

    Halilovic, Jenana; Christensen, Cinda L; Nguyen, Hien H

    2014-01-01

    Outpatient parenteral antimicrobial therapy (OPAT) programs should strive to deliver safe, cost effective, and high quality care. One of the keys to developing and sustaining a high quality OPAT program is to understand the common challenges or barriers to OPAT delivery. We review the most common challenges to starting and managing an OPAT program and give practical advice on addressing these issues. PMID:24971015

  9. Gender differences in a sample of schizophrenic outpatients

    Microsoft Academic Search

    J Usall; S Araya; S Ochoa; E Busquets; A Gost; M Márquez

    2001-01-01

    Our objective was to study gender differences in schizophrenia, comparing clinical, social, and illness course characteristics. A sample of 239 schizophrenic (DSM-IV criteria) outpatients were administered the following instruments: service use and demographic questionnaires, the Positive and Negative Symptom Scale (PANSS), the Disability Assessment Scale (DAS), and the Global Assessment of Functioning (GAF) scale. The female to male ratio was

  10. An Overview of Outpatient Treatment of Adolescent Substance Abuse

    ERIC Educational Resources Information Center

    Galanter, Marc; Glickman, Linda; Singer, David

    2007-01-01

    This paper reviews the literature on ambulatory substance abuse treatment for adolescents, including brief intervention, Twelve-Step-based outpatient treatment, family-based treatment, cognitive behavioral therapy, and pharmacologic treatment. An overview of socially and culturally specific strategies is also included. The diversity of settings…

  11. Locus of Control and Depression in Students and Psychiatric Outpatients.

    ERIC Educational Resources Information Center

    Costello, Elizabeth J.

    1982-01-01

    Examined the relationship among depression, locus of control of reinforcement, and age in psychiatric outpatients and students. Found depression and locus of control highly correlated; age negatively correlated with locus of control and positively with depression. Discusses the possible causal relationship between external locus of control and…

  12. Psychological Testing in Outpatient Mental Health Facilities: A National Study

    Microsoft Academic Search

    Chris Piotrowski; John W. Keller

    1989-01-01

    We surveyed psychological testing trends in outpatient mental health centers, clinics, and services in the United States. The sample was obtained from the National Directory of Mental Health and the National Registry of Community Mental Health Services. Of 900 facilities with a psychologist on staff, 413 (46%) returned questionnaires. The MMPI and the Wechsler scales were the instruments most frequently

  13. Effectiveness of Child Psychoanalytic Psychotherapy in a Clinical Outpatient Setting

    ERIC Educational Resources Information Center

    Deakin, Elisabeth Kuhn; Tiellet Nunes, Maria Lucia

    2009-01-01

    The objective of this study was to evaluate the outcome of child psychoanalytic psychotherapy in a clinical outpatient setting in a city in southern Brazil. Three psychological tests (Rorschach, Bender and WISC III) were administered to 23 children, aged 6-11 years old, and the Child Behaviour Check List (CBCL) was completed by the parents. All…

  14. 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…

  15. TELENURSING INTERVENTION INCREASES PSYCHIATRIC MEDICATION ADHERENCE IN SCHIZOPHRENIA OUTPATIENTS

    Microsoft Academic Search

    Lora Humphrey Beebe; Kathlene Smith; Carol Crye; Caryn Addonizio; D. J. Strunk; Whitney Martin; Josh Poche

    2008-01-01

    BACKGROUND: Promoting medication adherence is a critical issue in optimizing both physical and mental health in persons with schizophrenia. Average antipsychotic medication adherence is only 50%; few studies have examined nonpsychiatric medication adherence. Psychosocial interventions with components of problem solving and motivation have shown promise in improving adherence behaviors. OBJECTIVES: This study examines telephone intervention problem solving (TIPS) for outpatients

  16. Telenursing Intervention Increases Psychiatric Medication Adherence in Schizophrenia Outpatients

    Microsoft Academic Search

    Lora Humphrey Beebe; Kathlene Smith; Carol Crye; Caryn Addonizio; D. J. Strunk; Whitney Martin; Josh Poche

    2008-01-01

    BACKGROUND: Promoting medication adherence is a critical issue in optimizing both physical and mental health in persons with schizophrenia. Average antipsychotic medication adherence is only 50%; few studies have examined nonpsychiatric medication adherence. Psychosocial interventions with components of problem solving and motivation have shown promise in improving adherence behaviors. OBJECTIVES:This study examines telephone intervention problem solving (TIPS) for outpatients with

  17. 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…

  18. A Model of Collaborative Healthcare in Outpatient Medical Oncology

    Microsoft Academic Search

    Tina Schermer Sellers

    2000-01-01

    This article, describes the design and implementation of a six-month pilot collaborative healthcare project in Outpatient Medical Oncology. The project was designed utilizing input from a psychosocial needs assessment report generated for a multidisciplinary team of cancer physicians in Seattle, Washington. The needs assessment included physician and patient interviews and a condensed literature review. After integrating the Medical Family Therapist

  19. Recognition of Depressive and Anxiety Disorders in Dermatological Outpatients

    Microsoft Academic Search

    Angelo Picardi; Paolo Amerio; Giannandrea Baliva; Claudio Barbieri; Patrizia Teofoli; Simone Bolli; Valentina Salvatori; Eva Mazzotti; Paolo Pasquini; Damiano Abeni

    2004-01-01

    Although mental disorders are frequent among dermato- logical patients, little is known about their recognition by dermatologists. This study aimed to assess dermato- logists' ability to recognize depressive and anxiety disorders. All adult outpatients who visited four dermatologists on predetermined days (n~317) com- pleted the 12-item General Health Questionnaire (GHQ- 12) and the section on depressive and anxiety disorders of

  20. Outpatient percutaneous screw fixation of the acute Jones fracture

    Microsoft Academic Search

    Norman Mindrebo; K. Donald Shelbourne; Charles D. Van Meter; Arthur C. Rettig

    1993-01-01

    Nine patients (8 men and 1 woman, ranging in age from 17 to 22 years) who sustained a Jones fracture were treated with percutaneous intramedullary screw fixation as outpatients. All of the patients were varsity athletes. Seven were Division I scholarship athletes. Beginning at 7 to 10 days after surgery, all patients were allowed weightbearing as tolerated with a CAM

  1. 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

  2. The effectiveness of benzodiazepines and narcotics in outpatient surgery

    Microsoft Academic Search

    Ronald Riefkohl; Norman M. Cole; Edwin B. Cox

    1984-01-01

    In a prospective study of 211 outpatients undergoing cosmetic surgical procedures under local anesthesia supplemented with intravenous diazepam and morphine, patient pain response to the local anesthetic infiltration was graded and the recall of the operative experience was assessed. One hundred and fifty-five patients (73%) had either no pain response or a mild response, 41 (19%) had a moderate response,

  3. Outpatient Treatment of the Sexually Motivated Murderer and Potential Murderer.

    ERIC Educational Resources Information Center

    Schlesinger, Louis B.; Revitch, Eugene

    1990-01-01

    Introduces the psychopathology and psychodynamics of sex murderer (and potential sex murderer) with emphasis on treatment in outpatient setting. Reviews system of classification of murder based on motivational dynamics of the act itself. Presents three cases that demonstrate a treatment failure, successful treatment of a catathymic sex murderer,…

  4. 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…

  5. Behaviour Profile of Hungarian Adolescent Outpatients with a Dual Diagnosis

    ERIC Educational Resources Information Center

    Dinya, Elek; Csorba, Janos; Suli, Agota; Grosz, Zsofia

    2012-01-01

    The behaviour dimensions of 244 Hungarian adolescent psychiatric outpatients with a dual diagnosis (intellectual disability and psychiatric diagnosis) were examined by means of the adapted version of the Behaviour Problem Inventory (BPI, Rojahn, Matson, Lott, Esbensen, & Smalls, 2001). Four IQ subgroups were created: borderline, mild, moderate and…

  6. Accuracy of neonatal transcutaneous bilirubin measurement in the outpatient setting.

    PubMed

    Wickremasinghe, Andrea C; Karon, Brad S; Cook, Walter J

    2011-12-01

    OBJECTIVE. To evaluate the effectiveness of transcutaneous bilirubin (TcB) measurement in predicting risk for neonatal hyperbilirubinemia in outpatients. DESIGN. Subjects were infants ?8 days old seen in an outpatient clinic. Infants discharged with high-risk (HR) or high-intermediate risk (HIR) total serum bilirubin (TSB) values and jaundiced infants were recruited. TSB and TcB (BiliChek) levels were plotted on an hour-specific nomogram to determine risk for hyperbilirubinemia. RESULTS. A total of 79 infants provided 87 sets of TcB and TsB values. Mean bias and standard deviation between TcB and TsB was 1.5 ± 2.1 mg/dL for outpatients, compared with 2.7 ± 1.3 mg/dL for inpatients. The sensitivity and specificity of HR or HIR TcB for predicting an HR or HIR TSB were 87% and 58%, respectively. Of 9 infants readmitted for phototherapy, 1 had a low-risk TcB and high-risk TSB. CONCLUSIONS. TcB screening in the outpatient environment may not be safe and efficient. PMID:22013149

  7. 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).

  8. Who undertakes the consultations in the outpatient department?

    Microsoft Academic Search

    R S Kiff; P A Sykes

    1988-01-01

    In a study of all 4275 outpatient consultations over one month in a district general hospital it was found that the clinics in surgical specialties had the largest numbers of patients. In general surgery less than half of new patients and only one third of all patients attending the clinic were seen by a consultant. (Nine months later about a

  9. Effectiveness of child psychoanalytic psychotherapy in a clinical outpatient setting

    Microsoft Academic Search

    Elisabeth Kuhn Deakin; Maria Lucia Tiellet Nunes

    2009-01-01

    The objective of this study was to evaluate the outcome of child psychoanalytic psychotherapy in a clinical outpatient setting in a city in southern Brazil. Three psychological tests (Rorschach, Bender and WISC III) were administered to 23 children, aged 6–11 years old, and the Child Behaviour Check List (CBCL) was completed by the parents. All testing was completed before the

  10. Observation and theory of the barium releases from the CRRES satellite

    Microsoft Academic Search

    P. A. Bernhardt; J. D. Huba; W. A. Scales; E. M. Wescott; H. C. Stenbaek-Nielsen

    1992-01-01

    The relationship between releases of barium from the NASA Combined Release and Radiation Effects Satellite (CRRES) and enhanced auroral activity is discussed with reference to observational data. Barium releases were conducted at a variety of altitudes and injection velocities, and plasma irregularities are reported as a result of the interactions. Auroral activity increased within 5 min of each release, and

  11. Differential pulse anodic stripping voltammetry of barium and lead in gunshot residues

    Microsoft Academic Search

    Curt A. Woolever; Howard D. Dewald

    2001-01-01

    Differential pulse anodic stripping voltammetry (DPASV) has been applied for characterization and quantitative detection of barium and lead from gunshot residues (GSR). Previous electrochemical techniques have detected antimony and lead from GSR, however barium has never been detected. This technique allows for simultaneous detection of Ba and Pb that is simple, fast, and nondestructive.

  12. Electric fields and plasma waves resulting from a barium injection experiment

    Microsoft Academic Search

    H. C. Koons; Morris B. Pongratz

    1981-01-01

    A shaped-charge, barium plasma injection experiment was performed in June 1976 from the DOE Kauai test facility. The rocket payload contained seven shaped charges, a sevenfold larger package than the typical payloads employed in previous barium plasma injections conducted in this program. An attitude control system oriented the injection perpendicular to the local geomagnetic field. The injection altitude was 450

  13. Electron emitting barium-calcium aluminate obtained from chemical solution techniques

    Microsoft Academic Search

    C. Higashi; N. B. de Lima; J. R. Matos; C. Giovedi; C. C. Motta

    2005-01-01

    This paper reports a chemical technique to obtain barium-calcium aluminates used in impregnated thermionic cathodes. This procedure has been employed to improve the thermionic emission characteristics of the cathodes and to facilitate the preparation process of the emitting material. The crystallized powders were obtained using a mixed solution that contains barium, calcium, and aluminum in their chemical formula. Thermogravimetry and

  14. 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

  15. Vanadium doping effects on microstructure and dielectric properties of barium titanate ceramics

    Microsoft Academic Search

    Wei Cai; Chunlin Fu; Zebin Lin; Xiaoling Deng

    2011-01-01

    V-doped barium titante ceramics were prepared by conventional solid state reaction method. XRD patterns show that V5+ ions have entered into the tetragonal perovskite structure of solid solution to substitute for Ti4+ ions on the B sites. Addition of vanadium accelerates grain growth of BTO ceramics and there is abnormal grain growth of barium titanate ceramics with higher vanadium concentration.

  16. 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 in monolithic BST films especially with low strontium content, although the addition of MgO causes a reduction

  17. 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

  18. 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 titanate nanoparticles fabricated by the surface-initiated-polymerization approach were investigated the introduction of the dielectric barium titanate nanoparticle into Fe2O3/PU nanocomposites. The permeability

  19. 59 FR- Barium Sulfate; Toxic Chemical Release Reporting; Community Right-To-Know

    Federal Register 2010, 2011, 2012, 2013, 2014

    1994-06-28

    ...of the statement regarding the water solubility of barium sulfate and how it relates...with the commenters that, at the water solubility of 2.4 mg/ L (2.4 ppm) at 25...However, due to its limited water solubility, barium sulfate is not expected...

  20. 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--Barium ferrite, multi-layer, sendust, soft under- layer, strontium ferrite, textured growth. I. INTRODUCTION M

  1. AlGaN/GaN metal-oxide-semiconductor heterostructure field-effect transistors using barium strontium titanate

    E-print Network

    York, Robert A.

    AlGaN/GaN metal-oxide-semiconductor heterostructure field-effect transistors using barium strontium-effect transistors have been formed by incorporating barium strontium titanate (BST) deposited by rf magnetron in increased leakage. Due to its large dielectric constant, barium strontium ti- tanate [Ba1-xSrxTiO3, (BST

  2. 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

  3. 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

  4. 42 CFR 419.20 - Hospitals subject to the hospital outpatient prospective payment system.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ...2013-10-01 2013-10-01 false Hospitals subject to the hospital outpatient prospective... Categories of Hospitals and Services Subject to and Excluded From the Hospital Outpatient...Payment System § 419.20 Hospitals subject to the hospital outpatient...

  5. 42 CFR 419.20 - Hospitals subject to the hospital outpatient prospective payment system.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ...2012-10-01 2012-10-01 false Hospitals subject to the hospital outpatient prospective... Categories of Hospitals and Services Subject to and Excluded From the Hospital Outpatient...Payment System § 419.20 Hospitals subject to the hospital outpatient...

  6. 42 CFR 419.20 - Hospitals subject to the hospital outpatient prospective payment system.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ...2014-10-01 2014-10-01 false Hospitals subject to the hospital outpatient prospective... Categories of Hospitals and Services Subject to and Excluded From the Hospital Outpatient...Payment System § 419.20 Hospitals subject to the hospital outpatient...

  7. 42 CFR 419.20 - Hospitals subject to the hospital outpatient prospective payment system.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ...2011-10-01 2011-10-01 false Hospitals subject to the hospital outpatient prospective... Categories of Hospitals and Services Subject to and Excluded From the Hospital Outpatient...Payment System § 419.20 Hospitals subject to the hospital outpatient...

  8. Factors that Affect Treatment Expectations of Outpatients with Substance Use Problems

    ERIC Educational Resources Information Center

    Raylu, Namrata; Kaur, Inderjit

    2012-01-01

    The study assessed treatment expectations (TE) of outpatients with substance use problems as well as factors that affect their TE. Participants were 200 outpatients presenting at three community based substance abuse treatment services. Results of general linear modelling analyses showed that outpatients with substance use problems have higher…

  9. 38 CFR 17.108 - Copayments for inpatient hospital care and outpatient medical care.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ...outpatient medical care is $15 for a primary care outpatient visit and $50 for a...If a veteran has more than one primary care encounter on the same day and no...amount is the copayment for one primary care outpatient visit. If a...

  10. 38 CFR 17.108 - Copayments for inpatient hospital care and outpatient medical care.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ...outpatient medical care is $15 for a primary care outpatient visit and $50 for a...If a veteran has more than one primary care encounter on the same day and no...amount is the copayment for one primary care outpatient visit. If a...

  11. 38 CFR 17.108 - Copayments for inpatient hospital care and outpatient medical care.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ...outpatient medical care is $15 for a primary care outpatient visit and $50 for a...If a veteran has more than one primary care encounter on the same day and no...amount is the copayment for one primary care outpatient visit. If a...

  12. Centrifugal Jet Spinning for Highly Efficient and Large-scale Fabrication of Barium Titanate Nanofibers

    PubMed Central

    Ren, Liyun; Kotha, Shiva P.

    2014-01-01

    The centrifugal jet spinning (CJS) method has been developed to enable large-scale synthesis of barium titanate nanofibers. Barium titanate nanofibers with fiber diameters down to 50 nm and grain sizes around 25 nm were prepared with CJS by spinning a sol-gel solution of barium titanate and poly(vinylpyrrolidone) with subsequent heat treatment at 850 °C. XRD and FTIR analysis demonstrated high purity and tetragonal perovskite structured barium titanate nanofibers. SEM and TEM images confirm the continuous high aspect ratio structure of barium titanate nanofibers after heat treatment. It is demonstrated that the CJS technique offers a highly efficient method for large-scale fabrication of ceramic nanofibers at production rates of up to 0.3 gram/minute. PMID:24563566

  13. Setting process of lime-based conservation mortars with barium hydroxide

    SciTech Connect

    Karatasios, Ioannis [Institute of Materials Science, NCSR Demokritos, Aghia Paraskevi, 153 10 Athens (Greece)]. E-mail: ikarat@ims.demokritos.gr; Kilikoglou, Vassilis [Institute of Materials Science, NCSR Demokritos, Aghia Paraskevi, 153 10 Athens (Greece); Colston, Belinda [Department of Forensic and Biomedical Sciences, University of Lincoln, Lincoln, LN6 7TS (United Kingdom); Theoulakis, Panagiotis [Department of Conservation of Antiquities and Works of Art, TEI of Athens, Athens, 122 10 (Greece); Watt, David [Hutton and Rostron Environmental Investigations Limited/Centre for Sustainable Heritage, University College London (United Kingdom)

    2007-06-15

    This paper presents the effect of barium hydroxide on the setting mechanism of lime-based conservation mortars, when used as an additive material. The study focuses on the monitoring of the setting process and the identification of the mineral phases formed, which are essential for furthering the study of the durability of barium mixtures against chemical degradation. X-ray diffraction analysis (XRD), scanning electron microscopy (SEM) and thermal analysis (DTA-TG) were used to monitor the setting processes of these mixtures and identify new phases formed. The results suggest that barium hydroxide is evenly distributed within the lime and produces a homogeneous binding material, consisting of calcite (CaCO{sub 3}), witherite (BaCO{sub 3}) and barium-calcium carbonate [BaCa(CO{sub 3}){sub 2}]. Finally, it was found that barium carbonate can be directly bonded to calcitic aggregates and therefore increases its chemical compatibility with the binding material.

  14. Wideband and enhanced microwave absorption performance of doped barium ferrite

    NASA Astrophysics Data System (ADS)

    Meng, Pingyuan; Xiong, Kun; Ju, Kui; Li, Shengnan; Xu, Guangliang

    2015-07-01

    To achieve stronger microwave attenuation and larger bandwidth in electromagnetic absorber, the nickel ions (Ni2+) and manganese ions (Mn2+) were employed to partially replace the cobalt ions (Co2+) in BaCoTiFe10O19, and the doped barium hexaferrite (Ba(MnNi)0.2Co0.6TiFe10O19 and Ba(MnNi)0.25Co0.5TiFe10O19) powders were synthesized via the sol-gel combustion method. Subsequently, the microwave absorbing composites were prepared by mixing the ferrite powders with the paraffin. The X-ray diffraction (XRD) patterns of the doped ferrites confirmed the formation of the M-type barium ferrite, and no other types of barium ferrite could be found. Based on the electromagnetic parameters measured by the vector net-analyzer, it was found that the composite (Ba(MnNi)0.2Co0.6TiFe10O19) possessed a minimum reflection loss of -52.8 dB at 13.4 GHz with a matching thickness of 1.8 mm and the bandwidth below -15 dB was 5.8 GHz. Moreover, the maximum attenuation of Ba(MnNi)0.25Co0.5TiFe10O19 could reach -69 dB when its thickness was 1.8 mm, and also the bandwidth less than -20 dB was ranging from 13.2 GHz to 18 GHz. Thus, Ba(MnNi)0.2Co0.6TiFe10O19 and Ba(MnNi)0.25Co0.5TiFe10O19 could be the good microwave absorbers, which have great potentials to be applied in the high frequency fields of the microwave absorbing materials.

  15. X-Rays - Multiple Languages: MedlinePlus

    MedlinePLUS

    ... ????) French (français) Hindi (??????) Japanese (???) Korean (???) Russian (???????) Somali (af Soomaali) Spanish (español) ... ?????? - ??? (Japanese) Bilingual PDF Health Information Translations Korean (???) Barium Enema ?? ???? - ??? (Korean) Bilingual ...

  16. Anal Disorders - Multiple Languages: MedlinePlus

    MedlinePLUS

    ... ???????) French (français) Hindi (??????) Japanese (???) Korean (???) Russian (???????) Somali (af Soomaali) Spanish (español) ... ?????? - ??? (Japanese) Bilingual PDF Health Information Translations Korean (???) Barium Enema ?? ???? - ??? (Korean) Bilingual ...

  17. Nanodielectric system for cryogenic applications: Barium titanate filled polyvinyl alcohol

    SciTech Connect

    Tuncer, Enis [ORNL; Sauers, Isidor [ORNL; James, David Randy [ORNL; Ellis, Alvin R [ORNL; Duckworth, Robert C [ORNL

    2008-01-01

    In the current study the focus is on dielectric properties (as a function of frequency and temperature) of a polymeric composite system composed of polyvinyl alcohol and barium titanate nano powder. In the investigations, the temperature range is between 50-295 K, and the frequency range is between $20\\ \\hertz-1\\ \\mega\\hertz$. Polarization and conduction processes are investigated in the linear regime. Dielectric breakdown strengths of samples are also reported. The materials presented have potential to be implemented in cryogenic capacitor or field grading applications.

  18. The barium ion jet experiments of the Porcupine project

    NASA Astrophysics Data System (ADS)

    Haerendel, G.

    1980-06-01

    The injection of a barium plasma from a sounding rocket by the shaped charge technique offers several possibilities that cannot be achieved by conventional releases. This is due to high initial velocities of the atoms of up to 14 km/sec. Most of the the applications are related to the great heights that the ions can reach, but some depend directly on the initial momentum. Typical applications are: tracing at high altitudes, modifications, and alternate Ionization processes. Project Porcupine contributions in this field are summarized.

  19. Strain engineered barium strontium titanate for tunable thin film resonators

    SciTech Connect

    Khassaf, H.; Khakpash, N. [Department of Materials Science and Engineering and Institute of Materials Science, University of Connecticut, Storrs, Connecticut 06269 (United States); Sun, F. [Department of Physics, University of Connecticut, Storrs, Connecticut 06269 (United States); Sbrockey, N. M.; Tompa, G. S. [Structured Materials Industries, Inc., Piscataway, New Jersey 08854 (United States); Kalkur, T. S. [Department of Electrical and Computer Engineering, University of Colorado at Colorado Springs, Colorado Springs, Colorado 80918 (United States); Alpay, S. P., E-mail: p.alpay@ims.uconn.edu [Department of Materials Science and Engineering and Institute of Materials Science, University of Connecticut, Storrs, Connecticut 06269 (United States); Department of Physics, University of Connecticut, Storrs, Connecticut 06269 (United States)

    2014-05-19

    Piezoelectric properties of epitaxial (001) barium strontium titanate (BST) films are computed as functions of composition, misfit strain, and temperature using a non-linear thermodynamic model. Results show that through adjusting in-plane strains, a highly adaptive rhombohedral ferroelectric phase can be stabilized at room temperature with outstanding piezoelectric response exceeding those of lead based piezoceramics. Furthermore, by adjusting the composition and the in-plane misfit, an electrically tunable piezoelectric response can be obtained in the paraelectric state. These findings indicate that strain engineered BST films can be utilized in the development of electrically tunable and switchable surface and bulk acoustic wave resonators.

  20. Strain engineered barium strontium titanate for tunable thin film resonators

    NASA Astrophysics Data System (ADS)

    Khassaf, H.; Khakpash, N.; Sun, F.; Sbrockey, N. M.; Tompa, G. S.; Kalkur, T. S.; Alpay, S. P.

    2014-05-01

    Piezoelectric properties of epitaxial (001) barium strontium titanate (BST) films are computed as functions of composition, misfit strain, and temperature using a non-linear thermodynamic model. Results show that through adjusting in-plane strains, a highly adaptive rhombohedral ferroelectric phase can be stabilized at room temperature with outstanding piezoelectric response exceeding those of lead based piezoceramics. Furthermore, by adjusting the composition and the in-plane misfit, an electrically tunable piezoelectric response can be obtained in the paraelectric state. These findings indicate that strain engineered BST films can be utilized in the development of electrically tunable and switchable surface and bulk acoustic wave resonators.

  1. Dielectric behavior of barium modified strontium bismuth titanate ceramic

    NASA Astrophysics Data System (ADS)

    Nayak, P.; Badapanda, T.; Anwar, S.; Panigrahi, S.

    2014-04-01

    Barium Modified Strontium Bismuth Titanate(SBT) ceramic with general formula Sr1-xBaxBi4Ti4O15 is prepared by solid state reaction route. The structural analysis of the ceramics was done by X-ray diffraction technique. The X-ray patterns show that all the compositions are of single phase with orthorhombic structure. The temperature dependent dielectric behavior shows that the transition temperature decreases with Ba content but the maximum dielectric constant increases. The decreases of the transition with increase in Ba2+ ion, may be due to the decrease of orthorhombicity by the incorporation of Ba2+ ion in SBT lattice.

  2. Safety of outpatient autologous hematopoietic cell transplantation for multiple myeloma and lymphoma.

    PubMed

    Graff, T M; Singavi, A K; Schmidt, W; Eastwood, D; Drobyski, W R; Horowitz, M; Palmer, J; Pasquini, M; Rizzo, D J; Saber, W; Hari, P; Fenske, T S

    2015-07-01

    Autologous hematopoietic cell transplantation (Auto-HCT) is commonly an in-patient procedure. However, Auto-HCT is increasingly being offered on an outpatient basis. To better characterize the safety of outpatient Auto-HCT, we compared the outcome of 230 patients who underwent Auto-HCT on an in-patient vs outpatient basis for myeloma or lymphoma within a single transplant program. All outpatient transplants occurred in a cancer center day hospital. Hematopoietic recovery occurred earlier in the outpatient cohort, with median time to neutrophil recovery of 10 vs 11 days (P<0.001) and median time to platelet recovery of 19 vs 20 days (P=0.053). Fifty-one percent of the outpatient cohort never required admission, with this percentage increasing in later years. Grade 3-4 non-hematologic toxicities occurred in 29% of both cohorts. Non-relapse mortality at 1 year was 0% in the outpatient cohort and 1.5% in the in-patient cohort (P=0.327). Two-year PFS was 62% for outpatient vs 54% for in-patient (P=0.155). One- and two-year OS was 97% and 83% for outpatient vs 91% and 80% for in-patient, respectively (P=0.271). We conclude that, with daily outpatient evaluation and aggressive supportive care, outpatient Auto-HCT can result in excellent outcomes for myeloma and lymphoma patients. PMID:25867651

  3. Barium titanate core – gold shell nanoparticles for hyperthermia treatments

    PubMed Central

    FarrokhTakin, Elmira; Ciofani, Gianni; Puleo, Gian Luigi; de Vito, Giuseppe; Filippeschi, Carlo; Mazzolai, Barbara; Piazza, Vincenzo; Mattoli, Virgilio

    2013-01-01

    The development of new tools and devices to aid in treating cancer is a hot topic in biomedical research. The practice of using heat (hyperthermia) to treat cancerous lesions has a long history dating back to ancient Greece. With deeper knowledge of the factors that cause cancer and the transmissive window of cells and tissues in the near-infrared region of the electromagnetic spectrum, hyperthermia applications have been able to incorporate the use of lasers. Photothermal therapy has been introduced as a selective and noninvasive treatment for cancer, in which exogenous photothermal agents are exploited to achieve the selective destruction of cancer cells. In this manuscript, we propose applications of barium titanate core–gold shell nanoparticles for hyperthermia treatment against cancer cells. We explored the effect of increasing concentrations of these nanoshells (0–100 ?g/mL) on human neuroblastoma SH-SY5Y cells, testing the internalization and intrinsic toxicity and validating the hyperthermic functionality of the particles through near infrared (NIR) laser-induced thermoablation experiments. No significant changes were observed in cell viability up to nanoparticle concentrations of 50 ?g/mL. Experiments upon stimulation with an NIR laser revealed the ability of the nanoshells to destroy human neuroblastoma cells. On the basis of these findings, barium titanate core–gold shell nanoparticles resulted in being suitable for hyperthermia treatment, and our results represent a promising first step for subsequent investigations on their applicability in clinical practice. PMID:23847415

  4. Liquid-Phase Processing of Barium Titanate Thin Films

    NASA Astrophysics Data System (ADS)

    Harris, David Thomas

    Processing of thin films introduces strict limits on the thermal budget due to substrate stability and thermal expansion mismatch stresses. Barium titanate serves as a model system for the difficulty in producing high quality thin films because of sensitivity to stress, scale, and crystal quality. Thermal budget restriction leads to reduced crystal quality, density, and grain growth, depressing ferroelectric and nonlinear dielectric properties. Processing of barium titanate is typically performed at temperatures hundreds of degrees above compatibility with metalized substrates. In particular integration with silicon and other low thermal expansion substrates is desirable for reductions in costs and wider availability of technologies. In bulk metal and ceramic systems, sintering behavior has been encouraged by the addition of a liquid forming second phase, improving kinetics and promoting densification and grain growth at lower temperatures. This approach is also widespread in the multilayer ceramic capacitor industry. However only limited exploration of flux processing with refractory thin films has been performed despite offering improved dielectric properties for barium titanate films at lower temperatures. This dissertation explores physical vapor deposition of barium titanate thin films with addition of liquid forming fluxes. Flux systems studied include BaO-B2O3, Bi2O3-BaB2O 4, BaO-V2O5, CuO-BaO-B2O3, and BaO-B2O3 modified by Al, Si, V, and Li. Additions of BaO-B2O3 leads to densification and an increase in average grain size from 50 nm to over 300 nm after annealing at 900 °C. The ability to tune permittivity of the material improved from 20% to 70%. Development of high quality films enables engineering of ferroelectric phase stability using residual thermal expansion mismatch in polycrystalline films. The observed shifts to TC match thermodynamic calculations, expected strain from the thermal expansion coefficients, as well as x-ray diffract measurements . Our system exhibits flux-film-substrate interactions that can lead to dramatic changes to the microstructure. This effect is especially pronounced onc -sapphire, with Al diffusion from the substrate leading to formation of an epitaxial BaAl2O4 second phase at the substrate-film interface. The formation of this second phase in the presence of a liquid phase seeds {111} twins that drive abnormal grain growth. The orientation of the sapphire substrate determines the BaAl2O 4 morphology, enabling control the abnormal grain growth behavior. CuO additions leads to significant grain growth at 900 °C, with average grain size approaching 500 nm. The orthorhombic-tetragonal phase transition is clearly observable in temperature dependent measurements and both linear and nonlinear dielectric properties are improved. All films containing CuO are susceptible to aging. A number of other systems were investigated for efficacy at temperatures below 900 °C. Pulsed laser deposition was used to study flux + BaTiO 3 targets, layered flux films, and in situ liquids. RF-magnetron sputtering using a dual-gun approach was used to explore integration on flexible foils with Ba1-xSrxTiO3. Many of these systems were based on the BaO-B2O3 system, which has proven effective in thin films, multilayer ceramic capacitors, and bulk ceramics. Modifiers allow tailoring of the microstructure at 900 °C, however no compositions were found, and no reports exist in the open literature, that provide significant grain growth or densification below 900 °C. Liquid phase fluxes offer a promising path forward for low temperature processing of barium titanate, with the ultimate goal of integration with metalized silicon substrates. This work demonstrates significant improvements to dielectric properties and the necessity of understanding interactions in the film-flux-substrate system.

  5. Efficacy, safety, and applicability of outpatient treatment for diverticulitis

    PubMed Central

    Tursi, Antonio

    2014-01-01

    Acute diverticulitis of the colon represents a significant burden for national health systems, in terms of direct and indirect costs. Although current guidelines recommend use of antibiotics for the outpatient treatment of acute uncomplicated diverticulitis, evidence for this is still lacking. Hence, significant effort is now being made to identify the appropriate therapeutic approach to treat and prevent relapses of diverticulitis. Outpatient treatment has been identified as a safe and effective therapeutic approach in up to 90% of patients with uncomplicated diverticulitis. It allows important costs saving to health systems without a negative influence on quality of life for patients with uncomplicated diverticulitis, and reduces health care costs by more than 60%. PMID:24729730

  6. Ion scattering spectroscopy studies of barium and oxygen on tungsten and tungsten-based dispenser cathodes

    NASA Astrophysics Data System (ADS)

    Marrian, C. R. K.; Shih, A.; Haas, G. A.

    1985-12-01

    In order to use Ion Scattering Spectroscopy (ISS) for studies of tungsten dispenser cathodes, the relevant ISS sensitivities must be measured. Calibrations have been made using a polycrystalline tungsten ribbon with controlled coverages of oxygen, barium and combinations thereof. Auger Electron Spectroscopy (AES) was used to monitor these controlled surfaces and the escape depths of the tungsten Auger electrons in barium and oxygen have been measured. The absolute ISS sensitivities of all three elements were found to be strongly dependent on the barium coverage of the tungsten surface. This effect has been attributed to the lowering of the work function of the tungsten surface caused by the barium adsorption. However, the relative ISS sensitivities of the three elements are not affected in this way when both barium and oxygen (or oxygen alone) are present on the tungsten surface. ISS spectra of such surfaces have been analyzed quantitatively and found to be in reasonable agreement with AES measurements. The analysis has also been applied to ISS spectra of uncoated tungsten matrix dispenser cathodes in an active state and following exposure to oxygen. Compared to AES, these spectra indicate less oxygen on the active cathode surfaces as a result of the oxygen (associated with barium) not contributing to the oxygen ISS signal. Comparisons of the spectra from the active and oxygen poisoned cathodes suggest that oxygen adsorbed during the oxygen exposure sits on the topmost barium layer whereas the oxygen on the active cathode surface does not.

  7. Outpatient follow-up after traumatic injury: Challenges and opportunities

    PubMed Central

    Hansen, Luke; Shaheen, Aisha; Crandall, Marie

    2014-01-01

    Background: It has been shown that rates of ambulatory follow-up after traumatic injury are not optimal, but the association with insurance status has not been studied. Aims: To describe trauma patient characteristics associated with completed follow-up after hospitalization and to compare relative rates of healthcare utilization across payor types. Setting and Design: Single institution retrospective cohort study. Materials and Methods: We compared patient demographics and healthcare utilization behavior after discharge among trauma patients between April 1, 2005 and April 1, 2010. Our primary outcome of interest was outpatient provider contact within 2 months of discharge. Statistical Analysis: Multivariate logistic regression was used to determine the association between characteristics including insurance status and subsequent ambulatory and acute care. Results: We reviewed the records of 2906 sequential trauma patients. Patients with Medicaid and those without insurance were significantly less likely to complete scheduled outpatient follow-up within 2 months, compared to those with private insurance (Medicaid, OR 0.67, 95% CI 0.51-0.88; uninsured, OR 0.29, 95% CI 0.23-0.36). Uninsured and Medicaid patients were twice as likely as privately insured patients to visit the Emergency Department (ED) for any reason after discharge (uninsured patients (Medicaid, OR 2.6, 95% CI 1.50-4.53; uninsured, OR 2.10, 94% CI 1.31-3.36). Conclusion: We found marked differences between patients in scheduled outpatient follow-up and ED utilization after injury associated with insurance status; however, Medicaid seemed to obviate some of this disparity. Medicaid expansion may improve outpatient follow-up and affect patient outcome disparities after injury. PMID:25400385

  8. Patterns of sore mouth in outpatients with cancer receiving chemotherapy

    Microsoft Academic Search

    Carlton G. Brown; Susan L. Beck; Douglas E. Peterson; Deborah B. McGuire; William N. Dudley; Kathleen H. Mooney

    2009-01-01

    Goals  The aims of this secondary data analysis were to (a) categorize patterns in the development, duration, intensity, and resolution\\u000a of sore mouth (which can be considered a proxy for oral mucositis) severity and distress over two cycles of chemotherapy in\\u000a cancer outpatients and (b) examine the relationship of demographic (age, gender, marital status, and educational level) and\\u000a disease characteristics (type

  9. THE CONTRASTING EPIDEMIOLOGY OFCYCLOSPORAAND CRYPTOSPORIDIUM AMONG OUTPATIENTS IN GUATEMALA

    Microsoft Academic Search

    Caryn Bern; Beatriz Hernandez; Maria Beatriz Lopez; Michael J. Arrowood; Ana Maria De Merida; Robert E. Klein

    Abstract. We compared,epidemiologic,characteristics of Cryptosporidium and Cyclospora in surveillance data from outpatient departments in Guatemala. Routinely-submitted stool specimens were screened by microscopy. Age, sex, and symptom data were collected. Cyclospora was detected in 117 (2.1%) and Cryptosporidium in 67 (1.2%) of 5,520 specimens. The prevalence of Cyclospora peaked in the warmer months, while Cryptosporidium was most common in the rainy

  10. RESTRAINED PSYCHIATRIC OUTPATIENTS: NECESSITY, JUSTIFICATION OR VIOLATION OF HUMAN RIGHTS?

    PubMed Central

    Akhtar, Sayeed; Jagawat, T.

    1993-01-01

    SUMMARY Seventy patients were brought restrained to a Psychiatric outpatient department over a three month period, with the commonest site of restraint being the wrist. They were compared with controls and it was found that restrained patients were more likely to be younger, belonging to a lower socioeconomic status, from a rural background and were more likely to be diagnosed as manic. The significance of these findings and their implications for the human rights of the mentally ill are discussed. PMID:21743615

  11. Feasibility and Safety of Outpatient Total Laparoscopic Hysterectomy

    PubMed Central

    Lemyre, Madeleine; Couture, Vanessa; Bernier, Gabrielle; Laberge, Philippe Y.

    2015-01-01

    Background and Objective: Ambulatory total laparoscopic hysterectomy (TLH) could lead to significant cost savings, but some fear the effects of what could be premature postsurgical discharge. We sought to estimate the feasibility and safety of TLH as an outpatient procedure for benign gynecologic conditions. Methods: We report a prospective, consecutive case series of 128 outpatient TLHs performed for benign gynecologic conditions in a tertiary care center. Results: Of the 295 women scheduled for a TLH, 151 (51%) were attempted as an outpatient procedure. A total of 128 women (85%) were actually discharged home the day of their surgery. The most common reasons for admission the same day were urinary retention (19%) and nausea (15%). Indications for hysterectomy were mainly leiomyomas (62%), menorrhagia (24%), and pelvic pain (9%). Endometriosis and adhesions were found in 23% and 25% of the cases, respectively. Mean estimated blood loss was 56 mL and mean uterus weight was 215 g, with the heaviest uterus weighing 841 g. Unplanned consultation and readmission were infrequent, occurring in 3.1% and 0.8% of cases, respectively, in the first 72 hours. At 3 months, unplanned consultation, complication, and readmission had occurred in a similar proportion of inpatient and outpatient TLHs (17.2%, 12.5%, and 4.7% versus 18.1%, 12.7%, and 5.4%, respectively). In a logistic regression model, uterus weight, presence of adhesions or endometriosis, and duration of the operation were not associated with adverse outcomes. Conclusion: Same-day discharge is a feasible and safe option for carefully selected patients who undergo an uncomplicated TLH, even in the presence of leiomyomas, severe adhesions, or endometriosis. PMID:25788825

  12. Language difficulties in an Outpatient Clinic in Switzerland

    Microsoft Academic Search

    Alexander Bischoff; Claude Tonnerre; Louis Loutan; Hans Stalder

    1999-01-01

    Summary This small-scale study attempts to examine the languages spoken in medical consultations during a one-month period in an outpatient clinic in Geneva and the ways health professionals use to communicate with their allophone patients, in particular by using interpreters. Patients of foreign origin accounted for 58% of all the consultations during the survey. Of these, 37% were Non-French-speakers (NFS).

  13. Personality disorders and response to outpatient treatment of chronic pain

    Microsoft Academic Search

    Timothy R. Elliott; Warren T. Jackson; Molly Layfield; Debra Kendall

    1996-01-01

    As part of a comprehensive interdisciplinary evaluation conducted prior to participation in an outpatient chronic pain treatment program, the psychological status of 101 persons was assessed. The majority of participants was found to have a form of personality disorder, determined by conservative cutoff scores applied to their Millon Clinical Multiaxial Inventory (MCMI) profiles. DSM-III-R Cluster C disorders (i.e., Avoidant, Dependent,

  14. Phase structures and stability in barium titanate ferroelectric ultrathin films

    NASA Astrophysics Data System (ADS)

    Zhang, Jian; Yin, Zhen; Zhang, Ming-Sheng

    2003-04-01

    Under taking into account both stress and surface effects, an extended Landau-Devonshire theory is developed to investigate the phase structures and ferroelectric stability in barium titanate ultrathin films. The phase diagrams of temperature-stress, film thickness-stress and polarization-film thickness are calculated. For the surface polarization smaller than the bulk, the paraelectric phase starts at temperature below the bulk Curie temperature under small stresses and the ferroelectric phases can be stabilized in the ultrathin films under large stresses. For the surface polarization larger than the bulk, the paraelectric phase appears at temperature above the bulk Curie temperature and the ferroelectricity can be sustained in the ultrathin films by the “superpolarized” surface layer.

  15. Coralline barium records temporal variability in equatorial Pacific upwelling

    NASA Astrophysics Data System (ADS)

    Lea, David W.; Shen, Glen T.; Boyle, Edward A.

    1989-08-01

    LATTICE-BOUND cadmium in scleractinian corals has been shown to be a sensitive tracer of historical changes in the nutrient content of surface waters1,2. Barium also substitutes into the lattice of aragonite reef-building corals because there is solid solution between orthorhombic BaCO3 (witherite) and CaCO3(aragonite)3. It is expected that the substitution should be proportional to the Ba content of sea water, which increases from low values in warm surface waters to higher values in cold deep waters. Here we present a high-resolution coralline Ba record from the Galapagos Islands spanning the period 1965-1978. Coralline Ba/Ca tracks historical sea surface temperatures, reflecting the vertical displacement of warm nutrient-poor surface waters by cold, nutrient-rich source waters. Differences between coralline Ba and Cd records may be due to preferential uptake of Cd by phytoplankton during times of lower surface nutrients.

  16. Piezoresistive ceramic sensor based on PTCR barium titanate

    SciTech Connect

    Capurso, J.S.; Schulze, W.A.; Alles, A.B. [Alfred Univ., NY (United States)

    1994-12-31

    High purity, chemically prepared barium titanate was doped with 0.3 atom% La and 0.04 atom% Mn by precipitation. Using standard techniques, tape-cast sheets of the PTCR composition as well as the base insulating powder were made. A three-layer sensor was laminated with the upper and lower PTCR layers separated by an insulating BaTiO{sub 3} layer. After binder burnout, the device was sintered at 1350{degrees}C in flowing N{sub 2} followed by cooling in flowing O{sub 2} at 300{degrees}C/hour. The sensor was loaded using a standard four-point bend test configuration. The change in resistivity with increasing load was observed to the linear, with positive and negative piezoresistive coefficients for the PTCR layers under compression and tension, respectively. These trends are in general agreement with the Heywang-Jonker model of grain boundary potential barriers.

  17. Synthesis and optical study of barium magnesium aluminate blue phosphors

    NASA Astrophysics Data System (ADS)

    Jeet, Suninder; Sharma, Manoj; Pandey, O. P.

    2015-05-01

    Europium doped barium magnesium aluminate (BaMgAl10O17:Eu2+) phosphor was prepared via solution combustion method at 550°C using urea as a fuel. Morphological and optical properties of the prepared sample was studied by X-ray diffraction (XRD), Transmission electron microscopy (TEM) and Photoluminescence spectroscopy (PL). XRD result showed the formation of pure phase BaMgAl10O17(JCPDS 26-0163) along with an additional phase BaAl2O4(JCPDS 01-082-1350). TEM image indicated the formation of faceted particles with average particle size 40 nm. From PL spectra, a broad emission band obtained at about 450 nm attributes to 4f6 5d ? 4f7 transition of Eu2+ which lies in the blue region of the visible spectrum.

  18. Barium titanate nanocomposite capacitor FY09 year end report.

    SciTech Connect

    Stevens, Tyler E.; DiAntonio, Christopher Brian; Yang, Pin; Chavez, Tom P.; Winter, Michael R.; Monson, Todd C.; Roesler, Alexander William; Fellows, Benjamin D.

    2009-11-01

    This late start RTBF project started the development of barium titanate (BTO)/glass nanocomposite capacitors for future and emerging energy storage applications. The long term goal of this work is to decrease the size, weight, and cost of ceramic capacitors while increasing their reliability. Ceramic-based nanocomposites have the potential to yield materials with enhanced permittivity, breakdown strength (BDS), and reduced strain, which can increase the energy density of capacitors and increase their shot life. Composites of BTO in glass will limit grain growth during device fabrication (preserving nanoparticle grain size and enhanced properties), resulting in devices with improved density, permittivity, BDS, and shot life. BTO will eliminate the issues associated with Pb toxicity and volatility as well as the variation in energy storage vs. temperature of PZT based devices. During the last six months of FY09 this work focused on developing syntheses for BTO nanoparticles and firing profiles for sintering BTO/glass composite capacitors.

  19. Barium strontium oxide coated carbon nanotubes as field emitters

    NASA Astrophysics Data System (ADS)

    Jin, Feng; Liu, Yan; Day, Christopher M.

    2007-04-01

    The authors report a field emitter structure based on oxide coated carbon nanotubes (CNTs). This emitter consists of a thin tungsten ribbon with CNTs on the surface and a thin layer of low work function barium strontium oxide coating on the CNTs. This oxide coated CNT emitter was designed to combine the benefits of the high field enhancement factor from CNTs and the low work function from the emissive oxide coating. The field emission properties of the emitters were characterized. A field enhancement factor of 467 and a work function of 1.9eV were obtained for the oxide coated CNTs. Compared to the uncoated CNTs, the field emission from the oxide coated CNTs increased by a factor of 2-3. At 4.4V/?m, the field emission current of 23.6?A was obtained from an emitting surface of 0.012cm2.

  20. Impact of vanadium ions in barium borate glass

    NASA Astrophysics Data System (ADS)

    Abdelghany, A. M.; Hammad, Ahmed H.

    2015-02-01

    Combined optical and infrared spectral measurements of prepared barium borate glasses containing different concentrations of V2O5 were carried out. Vanadium containing glasses exhibit extended UV-visible (UV/Vis.) bands when compared with base binary borate glass. UV/Vis. spectrum shows the presence of an unsymmetrical strong UV broad band centered at 214 nm attributed to the presence of unavoidable trace iron impurities within the raw materials used for the preparation of such glass. The calculated direct and indirect optical band gaps are found to decrease with increasing the vanadium content (2.9:137 for indirect and 3.99:2.01 for direct transition). This change was discussed in terms of structural changes in the glass network. Infrared absorption spectra of the glasses reveal the appearance of both triangular and tetrahedral borate units. Electron spin resonance analyses indicate the presence of unpaired species in sufficient quantity to be identified and to confirm the spectral data.

  1. Communication: Barium ions and helium nanodroplets: Solvation and desolvation

    NASA Astrophysics Data System (ADS)

    Zhang, Xiaohang; Drabbels, Marcel

    2012-08-01

    The solvation of Ba+ ions created by the photoionization of barium atoms located on the surface of helium nanodroplets has been investigated. The excitation spectra corresponding to the 6p 2P1/2 ? 6s 2S1/2 and 6p 2P3/2 ? 6s 2S1/2 transitions of Ba+ are found to be identical to those recorded in bulk He II [H. J. Reyher, H. Bauer, C. Huber, R. Mayer, A. Schafer, and A. Winnacker, Phys. Lett. A 115, 238 (1986)], indicating that the ions formed at the surface of the helium droplets become fully solvated by the helium. Time-of-flight mass spectra suggest that following the excitation of the solvated Ba+ ions, these are being ejected from the helium droplets either as bare Ba+ ions or as small Ba+Hen (n < 20) complexes.

  2. Conoscopic study of strontium-barium niobate single crystals

    NASA Astrophysics Data System (ADS)

    Kolesnikov, Aleksandr; Grechishkin, Rostislav; Malyshkina, Olga; Malyshkin, Yury; Dec, Jan; ?ukasiewicz, Tadeusz; Ivanova, Aleksandra

    2013-12-01

    Optically transparent single crystals of strontium-barium niobate, SrxBa1-xNb2O6, of different compositions (x = 0.26...0.7) were examined with the aid of conoscopic light interference figures. A regular change of the isochrome concentric ring number and diameters consistent with the temperature variation of the value of birefringence is demonstrated by direct observations of polar cuts of optically uniaxial samples. Anomalous violations of the conventional (uniaxial) interference patterns occur occasionaly in some samples being indicative of the existence of biaxial trait in their behaviour even though no voltage is applied. These features may depend on annealing treatments at elevated temperatures. The results of the study show that conoscopic images may serve as a sensitive indicator of the structural state of SBN crystals related to the effects of stress-induced change of optical anisotropy and temperature dependent birefringence parameters.

  3. Supercritical fluid route for synthesizing crystalline Barium Strontium Titanate nanoparticles.

    PubMed

    Reverón, H; Elissalde, C; Aymonier, C; Bidault, O; Maglione, M; Cansell, F

    2005-10-01

    Pure and well-crystallized Barium Strontium Titanate (BST) nanoparticles with controlled Ba/Sr ratio have been successfully synthesized under supercritical conditions using a continuous-flow reactor in the temperature range of 150-380 degrees C at 26 MPa. To synthesize the Ba0.6Sr0.4TiO3 composition, alkoxides, ethanol and water were used. The resulting nanopowder consists of fine particles with an average particle size of 23 nm. The results show that the Ba/Sr ratio of this powder can be accurately controlled from the composition of precursor. The characterization of the as-synthesized Ba0.6Sr0.4TiO3 solid-solution and the dielectric properties of the sintered ceramics are here reported. PMID:16245539

  4. A new type of microphone using flexoelectric barium strontium titnate

    NASA Astrophysics Data System (ADS)

    Kwon, Seol ryung; Huang, Wenbin; Zhang, Shujun; Yuan, Fuh-Gwo; Jiang, Xiaoning

    2014-03-01

    A flexoelectric bridge-structured microphone using bulk barium strontium titanate (Ba0.65Sr0.35TiO3 or BST) ceramic was investigated in this study. The flexoelectric microphone was installed in an anechoic box and exposed to the sound pressure emitted from a loud speaker. Charge sensitivity of the flexoelectric microphone was measured and calibrated using a reference microphone. The 1.5 mm×768 ?m×50 ?m micro-machined bridge-structured flexoelectric microphone has a sensitivity of 0.92 pC/Pa, while its resonance frequency was calculated to be 98.67 kHz. The analytical and experimental results show that the flexoelectric microphone has both high sensitivity and broad bandwidth, indicating that flexoelectric microphones are potential candidates for many applications.

  5. Raman scattering study of barium borate glasses and melts

    NASA Astrophysics Data System (ADS)

    Osipov, Armenak A.; Osipova, Leyla M.

    2013-07-01

    Glasses and melts of xBaO-(100-x)B2O3 (x=20, 25, 30, 35, 40, 45, 50, 55, 60 and 67 mol%) composition have been prepared and studied using high-temperature Raman spectroscopy. It was shown that the structure of the glassy and molten samples with relatively low concentrations of barium oxide (x=20-35 mol%) consists of [B?4]- charged tetrahedra (? is a bridging oxygen atom), B?2O- asymmetric triangles (O- is a non-bridging oxygen atom) and B?3 neutral units. The concentration of [B?4]- tetrahedra (N4) monotonously decreases with increasing BaO content in the melts structure, whereas N4 demonstrates a maximum at x?40 mol% in the glassy samples. B?O22- pyroborate units appear at x?40 mol%, and BO33- orthoborate anions are also formed in the melts structure when x=60 and 67 mol%. The dominant mechanisms for the structural reorganizations generated by changes in temperature depend on the melt composition. The changes in the short range order (SRO) structures can be described by the [B?4]-?B?2O- isomerization reaction at 2550 is most likely described by the 2B?2O?B?O22-+B?3 disproportionation reaction. In both cases, the equilibrium shifts to the right with an increase in temperature. Significant changes in the local structures of melts with a low concentration of barium oxide (x?20 mol%) were not found.

  6. Numberical simulation of the effects of radially injected barium plasma in the ionosphere

    NASA Technical Reports Server (NTRS)

    Swift, D. W.

    1985-01-01

    The morphology of the ion cloud in the radial shaped charge barium injection was studied. The shape of the ion cloud that remains after the explosive products and neutral barium clears away was examined. The ion cloud which has the configuration of a rimless wagon wheel is shown. The major features are the 2.5 km radius black hole in the center of the cloud, the surrounding ring of barium ion and the spokes of barium ionization radiating away from the center. The cloud shows no evolution after it emerges from the neutral debris and it is concluded that it is formed within 5 seconds of the event. A numerical model is used to calculate the motion of ions and electrons subject to the electrostatic and lorenz forces.

  7. Barium isotopes in Allende meteorite: evidence against an extinct superheavy element

    Microsoft Academic Search

    R. S. Lewis; E. Anders; T. Shimamura; G. W. Lugmair

    1983-01-01

    Carbon and chromite fractions from the Allende meteorite that contain isotopically anomalous xenon-131 to xenon-136 (carbonaceous chondrite fission or CCF xenon) at up to 5 x 10¹¹ atoms per gram show no detectable isotopic anomalies in barium-130 to barium-138. This rules out the possibility that the CCF xenon was formed by in situ fission of an extinct superheavy element. Apparently

  8. Barium isotopes in Allende meteorite - Evidence against an extinct superheavy element

    NASA Technical Reports Server (NTRS)

    Lewis, R. S.; Anders, E.; Shimamura, T.; Lugmair, G. W.

    1983-01-01

    Carbon and chromite fractions from the Allende meteorite that contain isotopically anomalous xenon-131 to xenon-136 (carbonaceous chondrite fission or CCF xenon) at up to 5 x 10 to the 11th atoms per gram show no detectable isotopic anomalies in barium-130 to barium-138. This rules out the possibility that the CCF xenon was formed by in situ fission of an extinct superheavy element. Apparently the CCF xenon and its carbonaceous carrier are relics from stellar nucleosynthesis.

  9. Application of an intensified narrow channel reactor to the aqueous phase precipitation of barium sulphate

    Microsoft Academic Search

    E. D. McCarthy; W. A. E. Dunk; K. V. K. Boodhoo

    2007-01-01

    A homogeneous liquid phase reaction between barium chloride (BaCl2) and sodium sulphate (Na2SO4) was conducted in a narrow channel reactor to produce barium sulphate (BaSO4) precipitate. The effects of channel dimensions and channel residence times on crystal size, crystal size distribution, nucleation rates, crystal morphology and conversion of reactants were investigated at different levels of reactant supersaturation ratio. Our results

  10. Dynamic Release of Vitamin B2 from Floating Barium Alginate Beads for Gastric Delivery

    Microsoft Academic Search

    S. K. Bajpai; Seema Dubey

    2007-01-01

    The present study is focused on the development of floating barium alginate beads, which after oral administration, are intended to prolong the gastric residence time and increase the drug bioavailability. Out of three different barium alginate bead samples prepared using NaHCO3 as porogen, the beads prepared with 4 and 5 percent solutions of sodium alginate and with 1.5% content of

  11. Comparison of the reflectance characteristics of polytetrafluoroethylene and barium sulfate paints

    NASA Technical Reports Server (NTRS)

    Butner, C. L.; Schutt, J. B.; Shai, M. C.

    1984-01-01

    Preliminary results are presented of the directional reflectance measurements taken on two tetrafluorethylene (TFE) paints formulated with silicone binders. Both paints are found to be more Lambertian than barium sulfate paint and pressed powder, although the pigment to binder ratios for barium sulfate and TFE paints are about 133 and 3.3 to 1, respectively. The TFE paints exhibit total visible reflectances above 90 percent and offer surfaces that are not significantly affected by water.

  12. Barium isotopes in allende meteorite: evidence against an extinct superheavy element.

    PubMed

    Lewis, R S; Anders, E; Shimamura, T; Lugmair, G W

    1983-12-01

    Carbon and chromite fractions from the Allende meteorite that contain isotopically anomalous xenon-131 to xenon-136 (carbonaceous chondrite fission or CCF xenon) at up to 5 x 10(11) atoms per gram show no detectable isotopic anomalies in barium-130 to barium-138. This rules out the possibility that the CCF xenon was formed by in situ fission of an extinct superheavy element. Apparently the CCF xenon and its carbonaceous carrier are relics from stellar nucleosynthesis. PMID:17776244

  13. Experimental investigations on barium titanate nanocomposite thin films as an opto-electronic humidity sensor

    Microsoft Academic Search

    Nidhi Verma; Satyendra Singh; B. C. Yadav

    2012-01-01

    This article reports the synthesis and characterisation of Barium titanate (BaTiO3) nanocomposite and its application as opto-electronic humidity sensor. Titanium tetrachloride and barium hydroxide were mixed in molar ratio 1?:?1 in deionised water under continuous stirring at room temperature. Later, sodium hydroxide solution was added to above solution with continuous stirring. Finally, BaTiO3 gel was obtained. The synthesised nano-composite material

  14. Highly aluminium doped barium and strontium ferrite nanoparticles prepared by citrate auto-combustion synthesis

    Microsoft Academic Search

    Neil J.. Shirtcliffe; Simon Thompson; Eoin S. O’Keefe; Steve Appleton; Carole C.. Perry

    2007-01-01

    Aluminium doped barium and strontium hexaferrite nanoparticles BaAlxFe(12?x)O19 and SrAlxFe(12?x)O19 were synthesised via a sol–gel route using citric acid to complex the ions followed by an auto-combustion reaction. This method shows promise for the synthesis of complex ferrite powders with small particle size. It was found that around half of the iron could be substituted for aluminium in the barium

  15. Ammonia fuel cell using doped barium cerate proton conducting solid electrolytes

    Microsoft Academic Search

    L. Pelletier; A. McFarlan; N. Maffei

    2005-01-01

    Proton-conducting solid electrolytes composed of gadolinium-doped barium cerate (BCG) or gadolinium and praseodymium-doped barium cerate (BCGP) were tested in an intermediate-temperature fuel cell in which hydrogen or ammonia was directly fed. At 700°C, BCG electrolytes with porous platinum electrodes showed essentially no loss in performance in pure hydrogen. Under direct ammonia at 700°C, power densities were only slightly lower compared

  16. The role of barium swallow in the management of the globus pharyngeus

    Microsoft Academic Search

    A. Alaani; S. Vengala; M. N. Johnston

    2007-01-01

    Globus pharyngeus is a common benign condition with controversial management. Patients with globus pharyngeus are usually\\u000a investigated to exclude the possibility of upper aerodiagestive malignancies. There is a great debate about the role of barium\\u000a swallow in the management of this condition. Review of 1,145 barium swallow repourts of patients presented with globus pharyngeus\\u000a between 1999 and 2004 has failed

  17. Relationship Between Alexithymia and Social Anxiety in Female Outpatients with Dermatological Disorder Presenting for Psychiatric Consultation

    Microsoft Academic Search

    Bilge Evren; Cuneyt Evren

    2007-01-01

    The aim of this study was to evaluate the relationship between alexithymia and social anxiety symptoms in female outpatients\\u000a with dermatological disorder. Fifty consecutive patients sent to a psychiatry outpatient clinic for consultation from a dermatology\\u000a outpatient clinic were included in the study. Social anxiety symptoms showed significant correlations with depression, trait\\u000a anxiety, alexithymia and global psychiatric symptom severity. A

  18. Psychiatric disorders and depression in multiple sclerosis outpatients: impact of disability and interferon beta therapy

    Microsoft Academic Search

    G. M. Galeazzi; S. Ferrari; G. Giaroli; A. Mackinnon; E. Merelli; L. Motti; M. Rigatelli

    2005-01-01

    Associations between psychopathology and gender, duration of MS, disability and therapy with beta-interferons were studied\\u000a in multiple sclerosis (MS) outpatients. A controlled descriptive epidemiological study was carried out in two Italian outpatient\\u000a MS centres on 50 outpatients with clinically definite relapsing–remitting MS presenting for regular follow-up and 50 healthy\\u000a controls matched for sex, age and educational level. Subjects were assessed

  19. Current mental health in women with childhood sexual abuse who had outpatient psychotherapy

    Microsoft Academic Search

    Dawn E. Peleikis; Arnstein Mykletun; Alv A. Dahl

    2005-01-01

    Purpose. – This study from Norway examines mental health status of women with child sexual abuse (CSA) who formerly had outpatient psychotherapy for anxiety disorders and\\/or depression. The relative contributions of CSA and other family background risk factors (FBRF) to aspects of mental health status are also explored.Subjects. – At a mean of 5.1 years after outpatient psychotherapy, 56 female outpatients

  20. Barium swallow study in routine clinical practice: a prospective study in patients with chronic cough*,**

    PubMed Central

    Nin, Carlos Shuler; Marchiori, Edson; Irion, Klaus Loureiro; Paludo, Artur de Oliveira; Alves, Giordano Rafael Tronco; Hochhegger, Daniela Reis; Hochhegger, Bruno

    2013-01-01

    OBJECTIVE: To assess the routine use of barium swallow study in patients with chronic cough. METHODS: Between October of 2011 and March of 2012, 95 consecutive patients submitted to chest X-ray due to chronic cough (duration > 8 weeks) were included in the study. For study purposes, additional images were obtained immediately after the oral administration of 5 mL of a 5% barium sulfate suspension. Two radiologists systematically evaluated all of the images in order to identify any pathological changes. Fisher's exact test and the chi-square test for categorical data were used in the comparisons. RESULTS: The images taken immediately after barium swallow revealed significant pathological conditions that were potentially related to chronic cough in 12 (12.6%) of the 95 patients. These conditions, which included diaphragmatic hiatal hernia, esophageal neoplasm, achalasia, esophageal diverticulum, and abnormal esophageal dilatation, were not detected on the images taken without contrast. After appropriate treatment, the symptoms disappeared in 11 (91.6%) of the patients, whereas the treatment was ineffective in 1 (8.4%). We observed no complications related to barium swallow, such as contrast aspiration. CONCLUSIONS: Barium swallow improved the detection of significant radiographic findings related to chronic cough in 11.5% of patients. These initial findings suggest that the routine use of barium swallow can significantly increase the sensitivity of chest X-rays in the detection of chronic cough-related etiologies. PMID:24473762

  1. Plasma deposition of thin layers containing titanium and barium with the use of DBD

    NASA Astrophysics Data System (ADS)

    Majdak, Ma?gorzata; Opali?ska, Teresa; Wn?k, Bart?omiej; Konarski, Piotr

    2013-02-01

    Two different methods of deposition of thin layers containing titanium and barium with the use of dielectric barrier discharge were investigated. The first was carried out in two stages. The first stage consisted in transferring compounds containing titanium and barium from the vapor of the organic precursor to the copper substrate, while the second stage involved the etching of the organic layer in oxygen. The second method consisted in transferring titanium and barium to the copper substrate from the ceramic plate made of barium titanate, which was one of the electrodes during the plasma process. The results of analysis obtained by SIMS showed directly that both methods gave a positive result in the deposition of the thin layers containing a certain amount of titanium and barium on the surface of the copper plate. However, more effective method was that involving the properties of reaction with the metallorganic precursor. FTIR study of the layers prepared from the organic precursor indirectly showed that layers deposited on the copper plate contained compounds of barium and titanium. FTIR study also revealed that during the process of etching in oxygen, the organic layer was decreased, but it was not completely removed. Contribution to the Topical Issue "13th International Symposium on High Pressure Low Temperature Plasma Chemistry (Hakone XIII)", Edited by Nicolas Gherardi, Henryca Danuta Stryczewska and Yvan Ségui.

  2. Childhood physical abuse in outpatients with psychosomatic symptoms

    PubMed Central

    Handa, Masanori; Nukina, Hideyuki; Hosoi, Masako; Kubo, Chiharu

    2008-01-01

    Background In Japan and Asia, few studies have been done of physical and sexual abuse. This study was aimed to determine whether a history of childhood physical abuse is associated with anxiety, depression and self-injurious behavior in outpatients with psychosomatic symptoms. Methods We divided 564 consecutive new outpatients at the Department of Psychosomatic Medicine of Kyushu University Hospital into two groups: a physically abused group and a non-abused group. Psychological test scores and the prevalence of self-injurious behavior were compared between the two groups. Results A history of childhood physical abuse was reported by patients with depressive disorders(12.7%), anxiety disorders(16.7%), eating disorders (16.3%), pain disorders (10.8%), irritable bowel syndrome (12.5%), and functional dyspepsia(7.5%). In both the patients with depressive disorders and those with anxiety disorders, STAI-I (state anxiety) and STAI-II (trait anxiety) were higher in the abused group than in the non-abused group (p < 0.05). In the patients with depressive disorders, the abused group was younger than the non-abused group (p < 0.05). The prevalence of self-injurious behavior of the patients with depressive disorders, anxiety disorders and pain disorders was higher in the abused groups than in the non-abused groups (p < 0.005). Conclusion A history of childhood physical abuse is associated with psychological distress such as anxiety, depression and self-injurious behavior in outpatients with psychosomatic symptoms. It is important for physicians to consider the history of abuse in the primary care of these patients. PMID:18358076

  3. Metabolic syndrome among psychiatric outpatients with mood and anxiety disorders

    PubMed Central

    2014-01-01

    Background Few studies have simultaneously compared the impacts of pharmacotherapy and mental diagnoses on metabolic syndrome (MetS) among psychiatric outpatients with mood and anxiety disorders. This study aimed to investigate the impacts of pharmacotherapy and mental diagnoses on MetS and the prevalence of MetS among these patients. Methods Two-hundred and twenty-nine outpatients (men/women?=?85/144) were enrolled from 1147 outpatients with mood and anxiety disorders by systematic sampling. Psychiatric disorders and MetS were diagnosed using the Structured Clinical Interview for DSM-IV-TR and the new International Diabetics Federation definition, respectively. The numbers of antipsychotics, mood stabilizers, and antidepressants being taken were recorded. Logistic regression was used to investigate the impacts of pharmacotherapy and psychiatric diagnoses on MetS. Results Among 229 subjects, 51 (22.3%) fulfilled the criteria for MetS. The prevalence of MetS was highest in the bipolar I disorder (46.7%) patients, followed by bipolar II disorder (25.0%), major depressive disorder (22.0%), anxiety-only disorders (16.7%), and no mood and/or anxiety disorders (14.3%). The percentages of MetS among the five categories were correlated with those of the patients being treated with antipsychotics and mood stabilizers. Use of antipsychotics and/or mood stabilizers independently predicted a higher risk of MetS after controlling for demographic variables and psychiatric diagnoses. When adding body mass index (BMI) as an independent variable in the regression model, BMI became the most significant factor to predict MetS. Conclusion BMI was found to be an important factor related to MetS. Pharmacotherapy might be one of underlying causes of elevated BMI. The interactions among MetS, BMI, pharmacotherapy, and psychiatric diagnoses might need further research. PMID:24952586

  4. Modifiable risk factors for increased arterial stiffness in outpatient nephrology.

    PubMed

    Elewa, Usama; Fernandez-Fernandez, Beatriz; Alegre, Raquel; Sanchez-Niño, Maria D; Mahillo-Fernández, Ignacio; Perez-Gomez, Maria Vanessa; El-Fishawy, Hussein; Belal, Dawlat; Ortiz, Alberto

    2015-01-01

    Arterial stiffness, as measured by pulse wave velocity (PWV), is an independent predictor of cardiovascular events and mortality. Arterial stiffness increases with age. However, modifiable risk factors such as smoking, BP and salt intake also impact on PWV. The finding of modifiable risk factors may lead to the identification of treatable factors, and, thus, is of interest to practicing nephrologist. We have now studied the prevalence and correlates of arterial stiffness, assessed by PWV, in 191 patients from nephrology outpatient clinics in order to identify modifiable risk factors for arterial stiffness that may in the future guide therapeutic decision-making. PWV was above normal levels for age in 85/191 (44.5%) patients. Multivariate analysis showed that advanced age, systolic BP, diabetes mellitus, serum uric acid and calcium polystyrene sulfonate therapy or calcium-containing medication were independent predictors of PWV. A new parameter, Delta above upper limit of normal PWV (Delta PWV) was defined to decrease the weight of age on PWV values. Delta PWV was calculated as (measured PWV) - (upper limit of the age-adjusted PWV values for the general population). Mean±SD Delta PWV was 0.76±1.60 m/sec. In multivariate analysis, systolic blood pressure, active smoking and calcium polystyrene sulfonate therapy remained independent predictors of higher delta PWV, while age, urinary potassium and beta blocker therapy were independent predictors of lower delta PWV. In conclusion, arterial stiffness was frequent in nephrology outpatients. Systolic blood pressure, smoking, serum uric acid, calcium-containing medications, potassium metabolism and non-use of beta blockers are modifiable factors associated with increased arterial stiffness in Nephrology outpatients. PMID:25880081

  5. Music increases satisfaction in elderly outpatients undergoing cataract surgery

    Microsoft Academic Search

    Charles J. Cruise; Frances Chung; Suntheralingham Yogendran; D’Arcy Little

    1997-01-01

    Purpose  Music has long been known to reduce anxiety, minimize the need for sedatives, and make patients feel more at ease. The purpose\\u000a of the study was to evaluate the effect of music in elderly outpatients undergoing elective cataract surgery with retrobulbar\\u000a block and monitored anaesthetic care using fentanyl or alfentanil and midazolam.\\u000a \\u000a \\u000a \\u000a Methods  One hundred and twenty one patients were prospectively

  6. Electrocardiographic monitoring in healthy young adult outpatients: mandatory or optional?

    Microsoft Academic Search

    Ibrahim Zabani; Himat Vaghadia; Colin R. Chilvers; Pamela M. Merrick

    1998-01-01

    Purpose  To determine the incidence and duration of ECG abnormalities in healthy adults during short duration outpatient surgery and\\u000a their relationship to important clinical events.\\u000a \\u000a \\u000a \\u000a Method  In 381, ASA Class I, day surgery patients undergoing short surgical procedures the ECG was monitored prospectively for evidence\\u000a of abnormalities. The attending anaesthetist administered the anaesthetic and made all clinical decisions while relying on\\u000a routine

  7. Outpatient education reduces emergency room use by patients with epilepsy.

    PubMed

    Pascual, Franchette T; Hoang, Kathy; Hollen, Christopher; Swearingen, Richard; Hakimi, Andrea S; King, Jeanne Ann; Thompson, David

    2015-01-01

    Epilepsy is a costly diagnosis, with emergency room (ER) visits and hospital admissions comprising a large portion of total direct cost. An educational intervention to decrease the number of ER visits was implemented on outpatients with epilepsy, using educational handouts and DVD. The number of ER visits declined significantly in the four months following intervention compared with the preceding four months. This finding supports patient education as a valuable tool to reduce ER use, which may, in turn, cut down on health-care cost. PMID:25499153

  8. Management of incomplete abortion as an outpatient procedure.

    PubMed

    Allen, A; Philpott, R H

    1971-05-01

    To alleviate crowding in the gynecological wards, 350 of 410 cases of incomplete abortion seen between February and July, 1969, were treated as outpatients with analgesia instead of anesthesia. Patients with sepsis, severe anemia, septicemia or hypovolaemic shock, or who aborted as a result of serious illness were treated as inpatients. 74.4% of the patients were discharged within 12 hours. Paracervical block in combination with pethidine and valium administered intravenously or premedication with pethidine was more effective than paracervical block alone. PMID:5112599

  9. Clinician image review patterns in an outpatient setting

    NASA Astrophysics Data System (ADS)

    Erickson, Bradley J.; Ryan, William J.; Gehring, Dale G.; Beebe, Calvin

    1998-07-01

    We have previously described a system for delivering radiology information to the desktop computers used for the electronic medical record (EMR). The system was built with the ability to record physician usage to a database. This usage information was then studied to help understand the value and requirements of an application that could display radiology information on the EMR workstations. This system was used by both primary care physicians and specialists primarily in the out-patient setting. We found that while there was substantial variation in usage both within and between the two physician groups, there was a high degree of support for maintaining image display capabilities on the workstations.

  10. Assessment of Effects of Air Pollution on Daily Outpatient Visits using the Air Quality Index

    PubMed Central

    Mu, Haosheng; Otani, Shinji; Okamoto, Mikizo; Yokoyama, Yae; Tokushima, Yasuko; Onishi, Kazunari; Hosoda, Takenobu; Kurozawa, Youichi

    2014-01-01

    Background The air quality index (AQI) is widely used to characterize the quality of ambient air. Chinese cities officially report the AQI on a daily basis. To assess the possible effects of air pollution on daily outpatient visits, we examined the association between AQI and the daily outpatient count. Methods Daily data on outpatient visits to each clinical department were collected from the Z county hospital of Datong City, China. The collection period was between 5 April and 30 June, 2012. Daily AQI data and meteorological information were simultaneously recorded. We compared outpatient counts between the index days and comparison days, and calculated Pearson’s product moment correlation coefficient between outpatient counts and AQI levels. Results The average AQI level for index days was significantly higher than that for comparison days. No significant difference was observed in temperature or relative humidity between index days and comparison days. The outpatient counts for pediatrics were significantly higher on index days than on comparison days, and no significant difference was noted in other clinical departments. The outpatient counts for pediatrics positively correlated with the AQI level, and no correlation was noted in other clinical departments. Conclusion The present study assessed the association between daily outpatient visits and air pollution using AQI. The results obtained suggest that air pollution could increase the outpatient count for pediatrics. PMID:25901100

  11. [Role of parenteral cephalosporins for outpatients treatment of infections].

    PubMed

    Esposito, S; Mazzei, T; Novelli, A

    2001-12-01

    OPAT (Outpatient Parenteral Antibiotic Therapy) arose in the early 1980s in the USA and later in many other countries from the primary consideration that outpatient treatment is more cost-effective than hospitalisation. Currently, several thousand patients undergo OPAT programmes all over the world and several different bacterial infections are included in the list of treatable diseases, especially those requiring long-term parenteral treatment such as osteomyelitis and soft tissue infections. All injectable antibiotics are suitable for OPAT according to their microbiological spectrum, although clearly some pharmacological properties make one antibiotic more preferable than another. Beta-lactams represent more than half of the antibiotic world market and two-thirds of them are cephalosporins. Such a widespread use of cephalosporins is certainly due to their wide antibacterial spectrum and good tolerability. Among third-generation cephalosporins, covering the majority of micro-organisms responsible for community-acquired infections, ceftriaxone is the only one with an 8-hour half-life, thereby permitting a single daily dose, which represents a great advantage when undertaking an OPAT programme. Analysis of antibiotic consumption used for OPAT therapies, based on data collected from the International OPAT Registry project, with the participation of many countries (USA, Canada, Britain, Argentina, etc.) including Italy, shows that ceftriaxone is the most widely used antibiotic for home therapy, clearly due to the above-mentioned properties. PMID:12087207

  12. Axis II pathology in outpatients with dissociative identity disorder.

    PubMed

    Dell, P F

    1998-06-01

    Forty-two outpatients with dissociative identity disorder (DID) and 16 outpatients with dissociative disorder not otherwise specified (DDNOS) were administered the Millon Clinical Multiaxial Inventory-II (MCMI-II), the Minnesota Multiphasic Personality Inventory-2 (MMPI-2), and the Dissociative Experiences Scale (DES). DID patients manifested severe personality pathology (BR > 84) on a mean of 4.0 MCMI-II scales: avoidant (76%), self-defeating (68%), borderline (53%), and passive-aggressive (45%). DDNOS cases had severe personality pathology on fewer MCMI-II scales (mean = 1.69): avoidant (50%) and self-defeating (31%). The DID and DDNOS groups differed in their scores on the DES (means = 54.9 vs. 25.9), the PK-PTSD scale of the MMPI-2 (means = 33.6 vs. 21.7), and in the incidence of severe borderline pathology (53% vs. 6%). These data on personality pathology in DID patients are virtually identical to those of seven previous studies of personality pathology in chronic PTSD patients (i.e., avoidant, self-defeating, borderline, and passive-aggressive). Such robust convergence of findings supports the construct validity of DID as a form of posttraumatic disorder and suggests that there is a quite predictable personologic core to the clinical picture of severely traumatized individuals. PMID:9653419

  13. Obesity in schizophrenic outpatients receiving antipsychotics in Taiwan.

    PubMed

    Hsiao, Cheng-Cheng; Ree, Shao-Chun; Chiang, Yuan-Lin; Yeh, Song-So; Chen, Chih-Ken

    2004-08-01

    This investigation estimates and compares, for the first time, the distribution of body mass index (BMI: kg/m(2)) and the prevalence of obesity among Chinese outpatients with schizophrenia treated with antipsychotics. The BMI of 201 outpatients with schizophrenia-spectrum disorders was studied via a cross-sectional naturalistic study. This investigation also compared the BMI of the subjects with a Taiwanese reference population. This investigation found no significant difference in the prevalence of obesity between male and female subjects. The prevalence of obesity among male and female patients in this investigation was, respectively, 2.74- and 2.51-fold greater than the Taiwanese reference population, and the prevalence of severe obesity among male and female patients was 4.66- and 3.53-fold greater than that in the Taiwanese reference population, respectively. The rate of severe obesity was especially high in patients treated with olanzapine. Atypical antipsychotics other than olanzapine did not seem to be more closely associated with obesity or severe obesity compared to typical antipsychotics. PMID:15298654

  14. Toshiba General Hospital PACS for routine in- and outpatient clinics

    NASA Astrophysics Data System (ADS)

    Toshimitsu, Akihiro; Okazaki, Nobuo; Kura, Hiroyuki; Nishihara, Eitaro; Tsubura, Shinichi

    1996-05-01

    The Toshiba General Hospital introduced a departmental RIS/PACS (Radiology Information System/Picture Archiving and Communication System) in the radiology department in May, 1993. It has been used routinely since that time. In order to provide efficient means for clinicians to find and read many images, the system has been expanded to the neurosurgery and urology clinics and wards since May, 1995, and five image referring workstations now provide digital images to clinicians. In this paper we discuss an algorithm for image migration, one of the key issues to accomplish the expansion to outpatient clinics successfully, and propose the WYWIWYG (what you want is what you get) image transfer logic. This is the logic used to transfer images that physicians require refer without increasing the traffic between the image server and referring workstations. We accomplish the WYWIWYG logic by prioritizing exams the physicians have not yet viewed and by finding historical exams according to the modality, anatomy, and marking. Clinicians gave us comments from their first use of the system and suggested that the PACS enables clinicians to review images more efficiently compared to a film-based system. Our experience suggests that it is a key to the effective application of PACS in outpatient clinics to incorporate consideration patterns of clinicians on the migration algorithm.

  15. Perceptions of Outpatients Regarding the Attire of Physiotherapists

    PubMed Central

    Mercer, Erin; Conway, Nicki; Flynn, Jennifer; Mercer, Chris

    2008-01-01

    Purpose: This study investigated perceptions of patients regarding physiotherapists’ attire. Methods: Three hundred patients in three publicly funded outpatient physiotherapy clinics were asked to complete a questionnaire, ranking four photographed modes of attire (lab coat, tailored dress, “scrubs,” and jeans) in terms of professionalism, preference, and appropriateness and rating their level of agreement with four statements about physiotherapists’ attire. Results: Response rate was 63.7 %. The lab coat was ranked most professional, tailored dress most preferred, and jeans least professional and least preferred. Although jeans were deemed inappropriate (p < 0.001), strong support was shown for wearing jeans on “casual day” (p = 0.001). Age of respondents influenced the perception of the appropriateness of wearing jeans (p = 0.007 for male therapist; p = 0.017 for female therapist); only the cohort <36 years considered jeans appropriate apparel. Overall exposure to physiotherapists (number of lifetime visits) affected patients’ perceptions of the importance of attire (p = 0.039) and the appropriateness of wearing jeans (p = 0.018): as number of visits increased, perceived importance decreased and perceived propriety of jeans increased. Conclusion: The findings of this study, the first to examine patients’ opinions of physiotherapists’ attire, suggest that outpatients made clear distinctions between what they perceived as professional and what they preferred, as well as between the appropriateness of physiotherapists’ wearing jeans in general and the appropriateness of their doing so on “casual day.” Age and exposure to physiotherapists influenced patients’ perceptions of attire. PMID:20145767

  16. [Utilization of outpatient psychotherapy and its implications for service provision].

    PubMed

    Gallas, Christine; Puschner, Bernd; Kühn, Adelheid; Kordy, Hans

    2010-01-01

    Time structure of outpatient psychotherapy is important for clinical practice, as well as for theoretical and cost-effectiveness reasons. In this paper, important time variables (session number and frequency, therapy duration, utilization of the allocated session contingent, extension of therapy) are studied in a sample of n=714 German insurees in outpatient psychotherapy over a four-year period. Session number and duration of therapy were modelled with survival analysis, Cox regression was used to study the influence of covariates assessed at the beginning of therapy. Results are reported separately for the three therapy approaches financed by the German health insurance system: psychoanalytic psychotherapy (AP), psychodynamically-oriented therapy (TP) and cognitive-behavioral therapy (VT). Results show median session numbers of 25 (VT), 42 (TP) and 101 (AP) and a therapy duration of 12.8 (VT), 16.7 (TP) and 23.5 (AP) months. Initial therapeutic alliance was negatively associated with therapy duration and session number in AP. In TP and VT, a negative association between age and treatment duration was observed. 72.5% of the total session contingent was utilized and 38.4% of the participants applied for additional therapy sessions. An extension of psychotherapy happened more frequently 1) in psychoanalytic treatments and 2) in participants with higher initial psychological distress. Results show that the utilization of therapeutic resources differs from both theoretical concepts and fixed contingents allocated by health insurances. Potential implications for the allocation of psychotherapeutic resources are discussed. PMID:20066609

  17. Resident physicians' perspectives on effective outpatient teaching: a qualitative study.

    PubMed

    Kisiel, John B; Bundrick, John B; Beckman, Thomas J

    2010-08-01

    Learning theories, which suggest that experienced faculty use collaborative teaching styles, are reflected in qualitative studies of learners in hospital settings. However, little research has used resident focus groups to explore characteristics of successful teachers in outpatient clinics. Therefore, focus group discussions with first through third-year internal medicine residents at a large academic medical center were conducted to better understand residents' perspectives on effective outpatient teaching. A group facilitator solicited residents' reflections, based on their lived experiences, on teaching domains from previous factor analytic studies: interpersonal, clinical-teaching, and efficiency. Researchers coded focus group transcripts and identified themes within the domains. Final themes were determined by consensus. Leading themes were "kindness" and "teacher-learner relationships." Junior residents were sensitive to faculty who were brusque, harsh, and degrading. Senior residents respected faculty who were humble, collaborative, and allowed residents to co-manage teaching encounters. Seniors emphasized the importance of faculty role-modelling and preferentially staffed with experts to "gain wisdom from experience." Overall, residents expressed that effective learning requires grounded teacher-learner relationships. These findings support learning theories and previous factor analytic studies. However, this qualitative study provided insights that could not be gleaned from assessment scores alone. PMID:19798583

  18. Protective factors against suicide among young-old Chinese outpatients

    PubMed Central

    2014-01-01

    Background Suicide is common among the elderly worldwide. However, no literature could be found on the beliefs/expectations that protect young-old people from attempting suicide. The purpose of this study was to explore young-old outpatients’ reasons for not killing themselves in Taiwan. Method Data for this qualitative descriptive study were extracted from a large research series. From the 83 elderly outpatients in the original sample, 31 were chosen for this study because they were young-old (65–74 years old) and from two randomly selected medical centers in northern Taiwan. Data on participants’ reasons for not killing themselves in unhappy situations were collected in individual interviews using a semi-structured guide and analyzed by content analysis. Results Analysis of interview data identified six major themes: satisfied with one’s life, suicide cannot resolve problems, fear of humiliating one’s children, religious beliefs, never thought about suicide, and living in harmony with nature. Conclusion These identified protective factors (reasons for living) could be added to suicide-prevention programs for the elderly. Our findings may also serve as a reference for geriatric researchers in western countries with increasing numbers of elderly ethnic minority immigrants. PMID:24739419

  19. The first barium tin(II) bromide fluoride

    NASA Astrophysics Data System (ADS)

    Dénès, Georges; Merazig, Hocine; Muntasar, Abdualhafeed; Porterfield, Robyn

    2014-04-01

    In an effort to prepare barium tin(II) bromide fluorides for the first time, possibly similar to the chloride fluorides obtained earlier in our laboratory, precipitation reactions were carried out by mixing aqueous solutions of SnF2 and of BaBr2.2H2O. In contrast with the chloride fluoride system, a single powdered phase was obtained throughout the SnF2 - BaBr2 system, with the yield being maximum at X ? 0.25, where X is the molar fraction of barium bromide in the reaction mixture. Phase identification with the JCPDS database failed to produce a match, confirming that a new phase had been produced. The exact chemical composition of the new compound has not been obtained yet. Based on the X value for the maximum yield, the Sn/Ba ratio is likely to be 3/1 or 2/1. The Mössbauer spectrum at ambient conditions shows that bonding to tin(II) is covalent, therefore with the tin lone pair being stereoactive. The Mössbauer parameters ( ? = 3.68 mm/s, ? = 0.99 mm/s) are similar to those of SnBrF and of Sn2BrF5, thereby showing that tin is bonded to both fluorine and bromine. The larger isomer shift and lower quadrupole splitting than in tin(II) fluorides show that the stereoactivity of the tin lone pair is lower than in the fluorides. The Mössbauer parameters fit well the linear correlation of the quadrupole splitting versus the isomer shift" that has been shown to be present in other series of tin(II) compounds. The linear decrease on this correlation shows that the contribution of non-spherical orbitals ( p and d) to the lone pair is a much larger contributor to the quadrupole splitting than lattice distortions. The structure is likely made of Ba2+ cations and tin(II) fluoride bromide polyatomic anions, with covalent bonding withinthe anions.

  20. A Comparison of Outpatients with Intellectual Disability Receiving Specialised and General Services in Ontario's Psychiatric Hospitals

    ERIC Educational Resources Information Center

    Lunsky, Y.; Gracey, C.; Bradley, E.; Koegl, C.; Durbin, J.

    2011-01-01

    Background: This study compares outpatients with intellectual disability (ID) receiving specialised services to outpatients with ID receiving general services in Ontario's tertiary mental healthcare system in terms of demographics, symptom profile, strengths and resources, and clinical service needs. Methods: A secondary analysis of Colorado…

  1. Outpatient mental health service use by older adults after acute psychiatric hospitalization

    Microsoft Academic Search

    Hong Li; Enola Proctor; Nancy Morrow-Howell

    2005-01-01

    This study described outpatient mental health service used by elderly patients discharged from acute inpatient psychiatric treatment for depression, assessed services barriers, and identified factors related to the use of outpatient mental health services. The sample consisted of 199 elderly patients discharged home from a geropsychiatric unit of an urban midwestern hospital. Multivariate logistic regression was used to identify factors

  2. Neurocognitive, clinical and functional correlates of subjective quality of life in Asian outpatients with schizophrenia

    Microsoft Academic Search

    Puay San Woon; Ming Ying Chia; Wai Yen Chan; Kang Sim

    2010-01-01

    Quality of life (QOL) impairment is evident in patients with schizophrenia and is increasingly recognised as an important evaluation criterion of treatment outcome. Hence, this study aimed to identify the neurocognitive, clinical and functional parameters associated with subjective QOL in patients with schizophrenia within an Asian context, and specifically in an outpatient setting. This study was conducted on 83 outpatients

  3. Psychological test usage in southeastern outpatient mental health facilities in 1975

    Microsoft Academic Search

    Chris Piotrowski; John W. Keller

    1978-01-01

    93 outpatient mental health centers and clinics in Alabama, Florida, Georgia, Louisiana, and Mississippi were surveyed for the frequency of use of 25 psychological tests. 111 questionnaires from 61 centers provided usable data. Findings indicate that testing is an important function of outpatient mental health centers. Results are discussed in light of recent claims that psychological testing, especially projective techniques,

  4. The Relationship between Depressive Symptoms in Outpatients with Chronic Illness and Health Care Costs

    Microsoft Academic Search

    Yu-Mi Na; Kwang-Soo Kim; Kyoung-Uk Lee; Jeong-Ho Chae; Jin-Ho Kim; Dai-Jin Kim; Won-Myong Bahk; Yun-Sig Jang; Ae-Kyoung Lee; Young Sup Woo; Pyeoung-Soo Lee

    2007-01-01

    Purpose: To evaluate the relationship between depressive symptoms and health care costs in outpatients with chronic medical illnesses in Korea, we screened for depressive symptoms in 1,118 patients with a chronic medical illness and compared the severity of somatic symptoms and health care costs. Patients and Methods: Data were compared between outpatients with depressive symptoms and those without depressive symptoms.

  5. Early Working Alliance in Outpatient Substance Abuse Treatment: Predicting Substance Use Frequency and Client Satisfaction

    ERIC Educational Resources Information Center

    Knuuttila, Vesa; Kuusisto, Katja; Saarnio, Pekka; Nummi, Tapio

    2012-01-01

    Background: The study examined the effect of the early working alliance on outcome in outpatient substance abuse treatment. Methods: A total of 327 clients and 33 therapists participated in the study. Data were collected in southern and western Finland in outpatient treatment units (N = 7). The dependent variables were percentage of days abstinent…

  6. Inpatient vs. outpatient pain management: results of a randomised controlled trial

    Microsoft Academic Search

    A. C. de C. Williams; P. H. Richardson; M. K. Nicholas; C. E. Pither; V. R. Harding; K. L. Ridout; J. A. Ralphs; I. H. Richardson; D. M. Justins; J. H. Chamberlain

    1996-01-01

    Inpatient and outpatient cognitive behavioural pain management programmers for mixed chronic pain patients were compared. Patients were randomly allocated to the 4 week inpatient programme or to the 8 half day per week outpatient programme, or to a waiting list control group. Staff, teaching materials, and setting were the same for the two treatment groups. Patients were assessed pre-treatment, and

  7. Characteristics and Effectiveness of an Intensive Military Outpatient Treatment Program for PTSD

    Microsoft Academic Search

    R. Gregory Lande; Lisa Banks Williams; Jennifer L. Francis; Cynthia Gragnani; Melanie L. Morin

    2011-01-01

    This study describes the characteristics and global effectiveness of treatment of a military intensive outpatient treatment program for posttraumatic stress disorder (PTSD). Thirty-nine military personnel completed treatment outcome questionnaires. Results showed a statistically significant reduction in depression and PTSD symptoms after the participants completed 3 weeks of intensive outpatient therapy. The findings have clinical and research implications for the length,

  8. Construction of a questionnaire measuring outpatients' opinion of quality of hospital consultation departments

    Microsoft Academic Search

    Isabelle Gasquet; Sylvie Villeminot; Carla Estaquio; Pierre Durieux; Philippe Ravaud; Bruno Falissard

    2004-01-01

    BACKGROUND: Few questionnaires on outpatients' satisfaction with hospital exist. All have been constructed without giving enough room for the patient's point of view in the validation procedure. The main objective was to develop, according to psychometric standards, a self-administered generic outpatient questionnaire exploring opinion on quality of hospital care. METHOD: First, a qualitative phase was conducted to generate items and

  9. Rehospitalizations and outpatient contacts of mothers and neonates after hospital discharge after vaginal delivery

    Microsoft Academic Search

    Susan F. Meikle; Ella Lyons; Peter Hulac; Miriam Orleans

    1998-01-01

    OBJECTIVE: Our purpose was to determine whether length of hospital stay after vaginal delivery as determined by the discharging physician is associated with rehospitalizations or increased outpatient contacts by mothers and neonates and to assess the impact of home health care visits.STUDY DESIGN: An inception cohort study of all rehospitalizations and outpatient contacts of mothers and neonates after vaginal delivery

  10. S-band variable time delay circuit on barium tetratitanate

    NASA Astrophysics Data System (ADS)

    Bellacicco, R. F.

    1981-12-01

    The performance requirements for a variable time delay circuit for use in a phased array antenna are given - time delay from 1/2 to 16 nsec, 3 GHz operating frequency, 20% bandwidth, temperature compensation, and compact size. A brief description is presented of various types of devices which could meet these requirements. In the research for the electrical structure of this time delay circuit, two design types were investigated. The first, a tapped transmission line, yielded poor results on a test circuit - high insertion loss (2-22 db) and high VSWR. The second design was that of a 5-bit network. Test circuit results showed this to be a relatively good design insertion loss of 0.7 - 5.0 db and VSWR of 1.8 and 2.5. A complete time delay circuit design was produced using a 4-bit structure for the RF transmission line (1/2 to 8 nsec in 1/2 nsec increments) and a loaded switched-line structure for selection of the amount of time delay. For temperature compensation, the circuit design was dimensioned for a barium tetratitinate microstrip substrate. Due to small substrate size, the maximum time delay was 8 nsec instead of 16 nsec.

  11. UV integrated optics devices based on beta-barium borate

    NASA Astrophysics Data System (ADS)

    Poberaj, Gorazd; Degl'Innocenti, Riccardo; Medrano, Carolina; Günter, Peter

    2009-05-01

    We report on our recent progress in development of ultraviolet (UV) integrated optics devices based on beta-barium borate (BBO). Planar optical waveguides with a thickness of a few micrometers have been formed by the implantation of He + ions with energies of around 2 MeV. Two alternative methods based on the femtosecond-laser assisted micromachining and lithographic structuring for the fabrication of ridge-type channel optical waveguides in implanted BBO crystals have been developed, and the transmission properties of the obtained waveguides have been studied. We demonstrate a big potential of the fabricated channel waveguides for the second harmonic generation of continuous-wave deep-UV laser light with a power of the order of 1 mW, exploiting the nonlinear optical properties of BBO crystal. In addition, a low-voltage electro-optic waveguide modulator for the deep-UV light (half-wave voltage times electrode length V? × l = 43 V cm at 257 nm) was realized for the first time.

  12. Discovery of s-process barium in the Murchison meteorite

    SciTech Connect

    Ott, U.; Begemann, F. (Max-Planck-Institut fuer Chemie, Mainz (Germany, F.R.))

    1990-04-01

    Barium strongly enriched in its s-process-produced isotopes has been detected in a residue of Murchison meteorite. Relative to Ba - 130, 132 of p-process origin the s-component is enriched by almost 50 percent. The inferred isotopic composition of pure excess s-Ba in Murchison is distinct from average solar system s-Ba. The neutron exposure for the production of excess s-Ba in Murchison of tau(0) = 0.17/mb was lower by more than 30 percent. In the residue s-Ba is enriched over s-Xe about 1800-fold. Possibly, the enhancement is governed by the respective ionization energies which suggests implantation of s-process ions into preexisting host phases. Any HL-Ba which possibly accompanies HL-Xe in this residue can only be enhanced by less than 260 times, suggesting that the conditions for trapping HL-nuclides were different from conditions for trapping s-nuclides. 33 refs.

  13. Barium oxide, calcium oxide, magnesia, and alkali oxide free glass

    SciTech Connect

    Lu, Peizhen Kathy; Mahapatra, Manoj Kumar

    2013-09-24

    A glass composition consisting essentially of about 10-45 mole percent of SrO; about 35-75 mole percent SiO.sub.2; one or more compounds from the group of compounds consisting of La.sub.2O.sub.3, Al.sub.2O.sub.3, B.sub.2O.sub.3, and Ni; the La.sub.2O.sub.3 less than about 20 mole percent; the Al.sub.2O.sub.3 less than about 25 mole percent; the B.sub.2O.sub.3 less than about 15 mole percent; and the Ni less than about 5 mole percent. Preferably, the glass is substantially free of barium oxide, calcium oxide, magnesia, and alkali oxide. Preferably, the glass is used as a seal in a solid oxide fuel/electrolyzer cell (SOFC) stack. The SOFC stack comprises a plurality of SOFCs connected by one or more interconnect and manifold materials and sealed by the glass. Preferably, each SOFC comprises an anode, a cathode, and a solid electrolyte.

  14. Facile growth of barium oxide nanorods: structural and optical properties.

    PubMed

    Ahmad, Naushad; Wahab, Rizwan; Alam, Manawwer

    2014-07-01

    This paper reports a large-scale synthesis of barium oxide nanorods (BaO-NRs) by simple solution method at a very low-temperature of - 60 degrees C. The as-grown BaO-NRs were characterized in terms of their morphological, structural, compositional, optical and thermal properties. The morphological characterizations of as-synthesized nanorods were done by scanning electron microscopy (SEM) which confirmed that the synthesized products are rod shaped and grown in high density. The nanorods exhibits smooth and clean surfaces throughout their lengths. The crystalline property of the material was analyzed with X-ray diffraction pattern (XRD). The compositional and thermal properties of synthesized nanorods were observed via Fourier transform infrared (FTIR) spectroscopy and thermogravimetric analysis which confirmed that the synthesized nanorods are pure BaO and showed good thermal stability. The nanorods exhibited good optical properties as was confirmed from the room-temperature UV-vis spectroscopy. Finally, a plausible mechanism for the formation of BaO-NRs is also discussed in this paper. PMID:24758029

  15. Electrical properties of lanthanum doped barium titanate ceramics

    SciTech Connect

    Vijatovic Petrovic, M.M., E-mail: miravijat@yahoo.com [Institute for Multidisciplinary Research, Belgrade University, Kneza Viseslava 1, Belgrade (Serbia); Bobic, J.D. [Institute for Multidisciplinary Research, Belgrade University, Kneza Viseslava 1, Belgrade (Serbia); Ramoska, T.; Banys, J. [Faculty of Physics, Vilnius University, Sauletekio al. 9, Vilnius (Lithuania); Stojanovic, B.D. [Institute for Multidisciplinary Research, Belgrade University, Kneza Viseslava 1, Belgrade (Serbia)

    2011-10-15

    Pure and lanthanum doped barium titanate (BT) ceramics were prepared by sintering pellets at 1300 deg. C for 8 h, obtained from nanopowders synthesized by the polymeric precursor method. XRD results showed formation of a tetragonal structure. The presence of dopants changed the tetragonal structure to pseudo-cubic. The polygonal grain size was reduced up to 300 nm with addition of lanthanum as a donor dopant. Determined dielectric properties revealed that lanthanum modified BT ceramics possessed a diffused ferroelectric character in comparison with pure BT that is a classical ferroelectric material. In doped BT phase transition temperatures were shifted to lower temperatures and dielectric constant values were much higher than in pure BT. A modified Currie Weiss law was used to explore the connection between the doping level and degree of diffuseness of phase transitions. Impedance spectroscopy measurements were carried out at different temperatures in order to investigate electrical resistivity of materials and appearance of a PTCR effect. - Highlights: {yields} Pure and lanthanum doped BaTiO{sub 3} were prepared by polymeric precursors method. {yields} Change of structure from tetragonal to pseudo-cubic. {yields} Lanthanum as a donor dopant influenced on change of ferro-para phase transition. {yields} The diffuseness factor indicated the formation of diffuse ferroelectric material. {yields} Lanthanum affected on PTCR effect appearance in BT ceramics.

  16. Communication: Barium ions and helium nanodroplets: Solvation and desolvation

    SciTech Connect

    Zhang Xiaohang; Drabbels, Marcel [Laboratoire de Chimie Physique Moleculaire, Swiss Federal Institute of Technology Lausanne (EPFL), CH-1015 Lausanne (Switzerland)

    2012-08-07

    The solvation of Ba{sup +} ions created by the photoionization of barium atoms located on the surface of helium nanodroplets has been investigated. The excitation spectra corresponding to the 6p {sup 2}P{sub 1/2} Leftwards-Arrow 6s {sup 2}S{sub 1/2} and 6p {sup 2}P{sub 3/2} Leftwards-Arrow 6s {sup 2}S{sub 1/2} transitions of Ba{sup +} are found to be identical to those recorded in bulk He II [H. J. Reyher, H. Bauer, C. Huber, R. Mayer, A. Schafer, and A. Winnacker, Phys. Lett. A 115, 238 (1986)], indicating that the ions formed at the surface of the helium droplets become fully solvated by the helium. Time-of-flight mass spectra suggest that following the excitation of the solvated Ba{sup +} ions, these are being ejected from the helium droplets either as bare Ba{sup +} ions or as small Ba{sup +}He{sub n} (n < 20) complexes.

  17. Hydrogen diffusion in Lead Zirconate Titanate and Barium Titanate

    SciTech Connect

    Alvine, Kyle J.; Vijayakumar, M.; Bowden, Mark E.; Schemer-Kohrn, Alan L.; Pitman, Stan G.

    2012-08-28

    Hydrogen is a potential clean-burning, next-generation fuel for vehicle and stationary power. Unfortunately, hydrogen is also well known to have serious materials compatibility issues in metals, polymers, and ceramics. Piezoelectric actuator materials proposed for low-cost, high efficiency high-pressure hydrogen internal combustion engines (HICE) are known to degrade rapidly in hydrogen. This limits their potential use and poses challenges for HICE. Hydrogen-induced degradation of piezoelectrics is also an issue for low-pressure hydrogen passivation in ferroelectric random access memory. Currently, there is a lack of data in the literature on hydrogen species diffusion in piezoelectrics in the temperature range appropriate for the HICE as charged via a gaseous route. We present 1HNMR quantification of the local hydrogen species diffusion within lead zirconate titanate and barium titanate on samples charged by exposure to high-pressure gaseous hydrogen ?32?MPa. Results are discussed in context of theoretically predicted interstitial hydrogen lattice sites and aqueous charging experiments from existing literature.

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

    NASA Astrophysics Data System (ADS)

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

    2004-03-01

    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 a wavevector of the form q=(q_x,0,0), where qx varies with hole doping from 2 unit cells (along shorter Cu-O-Cu direction) for very low doping to 4 unit cells at optimal doping. Interestingly, while these superstructures are 3-dimensionally ordered when the SC state is weakened (e.g., at x=0.4), as the doping increases, they become quasi 1D with correlation lengths comparable to SC coherence lengths in these cuprates. Recent first-principles calculations (D. de Fontaine et al., to be published) for the x=0.63 compound show that atomic displacements consistent with experimental data can be the result of ordering of O vacancies in YBCO. Models for various superstructures and their role in the phase diagram will be discussed.

  19. Flexoelectric sensing using a multilayered barium strontium titanate structure

    NASA Astrophysics Data System (ADS)

    Kwon, S. R.; Huang, W. B.; Zhang, S. J.; Yuan, F. G.; Jiang, X. N.

    2013-11-01

    The flexoelectric effect has been recently explored for its promise in electromechanical sensing. However, the relatively low flexoelectric coefficients of ferroelectrics inhibit the potential to develop flexoelectric sensing devices. In this paper, a multilayered structure using flexoelectric barium strontium titanate (Ba0.65Sr0.35TiO3 or BST) ceramic was fabricated in an attempt to enhance the effective flexoelectric coefficients using its inherent scale effect, and hence to improve the flexoelectric sensitivity. The performances of piezoelectric and flexoelectric cantilevers with the same dimensions and under the same conditions were compared. Owing to the flexoelectric scaling effect, under the same force input, the BST flexoelectric structure generated a higher charge output than its piezoelectric P(VDF-TrFE) and PMN-30PT counterparts when its thickness was less than 73.1 ?m and 1.43 ?m, respectively. Also, amplification of the charge output using the multilayered structure was then experimentally verified. The prototyped structure consisted of three layers of 350 ?m-thick BST plates with a parallel electric connection. The charge output was approximately 287% of that obtained using a single-layer structure with the same total thickness of the multilayered structure under the same end deflection input, which suggests high sensitivity sensing can be achieved using multilayer flexoelectric structures.

  20. Oxidative coupling of methane over oxide-supported barium catalysts

    SciTech Connect

    Dissanayake, D.; Lunsford, J.H.; Rosynek, M.P. (Texas A M Univ., College Station, TX (United States))

    1993-09-01

    The effects of barium loading level and support basicity on the activity and C[sub 2+] selectivity for oxidative coupling of methane were examined for MgO-, CaO-, ZnO-, and Al[sub 2]O[sub 3]-supported Ba catalysts. The nature and distribution of catalyst surface species were characterized by XPS and ISS spectroscopic techniques, which indicated that there is no direct correlation between support basicity and oxidative coupling activity. However, catalysts containing sufficiently high Ba loadings are more easily poisoned by carbon dioxide than those with low Ba contents, due to increased stability of a BaCO[sub 3] phase. With supports of low basicity, or when the Ba is uniformly distributed on the catalyst support, the susceptibility to carbon dioxide poisoning is minimized. XPS characterization of the Ba/MgO catalysts confirmed that oxidative coupling activity is directly related to the capability of the catalyst to form surface O[sub 2][sup 2[minus

  1. Crystallization phenomena in thin films of amorphous barium hexaferrite

    NASA Astrophysics Data System (ADS)

    Gerard, P.; Lacroix, E.; Marest, G.; Blanchard, B.; Rolland, G.; Rolland, B.; Bechevet, B.

    1989-07-01

    It is an investigation on crystallization phenomena by post-deposition annealings of amorphous thin films of M type barium hexaferrite made either at room temperature (A samples) or at 400°C (B samples). Both amorphous layers were deposited by facing target sputtering system. The evolution of magnetic and crystalline properties of A and B samples were studied as a function of isochronous thermal treatments under air or oxygen. After different annealing steps, samples were characterized for the structure and the composition by X-ray and by secondary ion mass spectrometry respectively and for the magnetic properties by a vibrating sample magnetometer and by conversion electron Mössbauer spectroscopy. Stress measurements were also performed using a Fizeau interferometer. On the whole, it turns out that B samples are well textured, the c-axis being rather well perpendicular to the surface of the substance. This gives rise to the desired perpendicular anisotropy. As for A samples, they display isomorphous magnetic behaviour having no preferential crystalline orientation. Huge hydroxyl group absorption found in A with respect to B samples seems to be at the origin of discrepancies between the two amorphous hexaferrites made at different temperatures.

  2. On-line ultrasonic characterisation of barium doped lanthanum perovskites

    NASA Astrophysics Data System (ADS)

    Thamilmaran, P.; Arunachalam, M.; Sankarrajan, S.; Sakthipandi, K.

    2015-06-01

    Perovskite manganite samples La1-xBaxMnO3 with the composition of x=0.30, 0.33 and 0.36 were prepared by employing solid state reaction technique. The X-ray diffraction (XRD) patterns confirmed the rhombhedral structure with R3c space group of the samples. The obtained energy dispersive analysis X-rays (EDX) spectra of the samples have confirmed the elemental composition of the samples. The scanning electron microscope (SEM) images of the samples were used to find out the size of the particles. In-situ ultrasonic measurements were carried out on the samples by through transmission method. The temperature dependence of the ultrasonic parameters revealed interesting features of the samples. The observed ultrasonic velocities and attenuation both in longitudinal and shear mode are related to the paramagnetic (PM) to ferromagnetic (FM) phase transition in the prepared samples. The results confirmed that an increase in the barium content in the sample leads to an increase in the phase transition temperature TC.

  3. Barium from a mini r-process in supernovae

    NASA Technical Reports Server (NTRS)

    Heymann, D.

    1983-01-01

    McCulloch and Wasserburg (1978) have reported nonlinear isotopic anomalies in barium for two Ca-Al-rich inclusions of the Allende carbonaceous chondrite, known as EK-1-4-1 and C-1. In an attempt to account for these anomalies, it has been proposed that Ba from an r-process of nucleosynthesis, containing Ba-135 and Ba-137, was injected into the primeval color system but was not totally homogenized. Questions arise in connection with the relations of Xe isotopes in carbonaceous chondrites. This has prompted Heymann and Dziczkaniec (1979, 1980, 1981) to study the formation of r-Xe, r-Kr, and r-Te by the mini r-process which is thought to occur in the O, Ne-rich shells of Type II supernovae. Lee et al. (1979) have studied the formation of r-Ba, r-Nd, and r-Sm by the same process. Certain differences regarding the approaches used by Lee et al. and by Heymann and Dziczkaniec make it necessary to restudy the work of Lee et al. Attention is given to the survival probabilities of nuclear species of interest, taking into accounts the elements Cs, Ba, I, and Xe.

  4. The chemical composition of a mild barium star HD202109

    E-print Network

    Yushchenko, A V; Kim, C; Liang, Y; Musaev, F A; Galazutdinov, G A; Kim, Chulhee; Liang, Yanchun

    2003-01-01

    We present the result of chemical abundances of a mild barium star HD202109 (zeta Cyg) determined from the analysis of spectrum obtained by using a 2-m telescope at the Peak Terskol Observatory and a high-resolution spectrometer with R=80,000, signal to noise ratio >100. We also present the atmospheric parameters of the star determined by using various methods including iron-line abundance analysis. For line identifications, we use whole-range synthetic spectra computed by using the Kurucz database and the latest lists of spectral lines. Among the determined abundances of 51 elements, those of P, S, K, Cu, Zn, Ge, Rb, Sr, Nb, Mo, Ru, Rh, Pd, In, Sm, Gd, Tb, Dy, Er, Tm, Hf, Os, Ir, Pt, Tl, and Pb have not been previously known. Under the assumption that the overabundance pattern of Ba stars is due to wind-accretion process, adding information of more element abundances enables one to show that the heavy element overabundances of HD202109 can be explained with the wind accretion scenario model.

  5. Gastrointestinal tract labeling for MDCT of abdomen: comparison of low density barium and low density barium in combination with water.

    PubMed

    Gulati, Kavita; Shah, Zarine K; Sainani, Nisha; Uppot, Raul; Sahani, Dushyant V

    2008-05-01

    The purpose of the study was to compare the quality of stomach and small bowel marking/labeling using 1,350 ml of low-density barium alone (VoLumen) with 900 ml of low-density barium and 450 ml of water for 16-MDCT scans of the abdomen and pelvis and assess cost benefits with the two protocols. In this IRB approved study, 80 consecutive patients scheduled for routine CECT (contrast-enhanced CT) of the abdomen-pelvis were studied. Patients were randomized into two groups and were administered either 1,350 ml of VoLumen (two bottles at 20-min intervals, one half bottle at 50 min and the last half on the table) or 900 ml of VoLumen (two bottles at 20-min intervals and 450 ml water on the table). Portal venous phase scanning (detector collimation=0.625 mm, speed=18.75 mm, thickness=5 mm) was subsequently performed. Images were reconstructed in axial and coronal plane at the CT console. Two blinded readers used a pre-designed template to assess distension and wall characteristics of the stomach and small bowel on a 5-point scale. Median scores with the two protocols were compared using the Wilcoxon rank sum test. The stomach and small bowel labeling was rated fair to optimal in all patients and did not differ significantly in the two protocols. The mean scores for distension of the small bowel and stomach were comparable. Inter-observer agreement for bowel labeling was found to be excellent (k 0.81). With the use of coronal images there was increased reader confidence in tracing the small bowel with both protocols. Acceptance for two bottles of VoLumen and water was greater among patients as compared to three bottles of VoLumen. Use of two bottles of VoLumen and water combination cost less than three bottles of VoLumen. Stomach and small bowel labeling with administration of 900 ml of VoLumen followed by 450 ml of water is cost effective and compares well to 1,350 ml of VoLumen alone. PMID:18183403

  6. 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

    ...Advisory Panel on Hospital Outpatient Payment (HOP Panel)--August 27, 28, and 29, 2012...Advisory Panel on Hospital Outpatient Payment (HOP, the Panel), (the Ambulatory Payment...Bulls, DFO, CMS, CM, HAPC, DOC--HOPS Panel, 7500 Security Blvd.,...

  7. Chromospherically active stars. 11: Giant with compact hot companions and the barium star scenario

    NASA Technical Reports Server (NTRS)

    Fekel, Francis C.; Henry, Gregory W.; Busby, Michael R.; Eitter, Joseph J.

    1993-01-01

    We have determined spectroscopic orbits for three chromsopherically active giants that have hot compact companions. They are HD 160538 (KO III + wd, P = 904 days), HD 165141 (G8 III + wd, P approximately 5200 days), and HD 185510 (KO III + sdB, P = 20.6619 days). By fitting an IUE spectrum with theoretical models, we find the white dwarf companion of HD 165141 has a temperature of about 35,000 K. Spectral types and rotational velocities have been determined for the three giants and distances have been estimated. These three systems and 39 Ceti are compared with the barium star mass-transfer scenario. The long-period mild barium giant HD 165141 as well as HD 185510 and 39 Ceti, which have relatively short periods and normal abundance giants, appear to be consistent with this scenario. The last binary, HD 160538, a system with apparently near solar abundances, a white dwarf companion, and orbital characteristics similar to many barium stars, demonstrates that the existence of a white dwarf companion is insufficient to produce a barium star. The paucity of systems with confirmed white dwarf companions makes abundance analyses of HD 160538 and HD 165141 of great value in examining the role of metallicity in barium star formation.

  8. Barium Tagging n Solid Xenon for nEXO Neutrinoless Double Beta Decay

    NASA Astrophysics Data System (ADS)

    Walton, Tim; Chambers, Chris; Craycraft, Adam; Fairbank, William; nEXO Collaboration

    2015-04-01

    nEXO is a next-generation experiment designed to search for neutrinoless double beta decay of the isotope Xe136 in a liquid xenon time projection chamber. Positive observation of this decay would determine the nature of the neutrino to be a Majorana particle. Since the daughter of this decay is barium (Ba136), detecting the presence of Ba136 at a decay site (called ``barium tagging'') would provide strong rejection of backgrounds in the search for this decay. This would involve detecting a single barium ion from within a macroscopic volume of liquid xenon. This technique may be available for a second phase of the nEXO detector and sensitivity beyond the inverted hierarchy to neutrino oscillations. Several methods of barium tagging are being explored by the nEXO collaboration, but here we present a method of trapping the barium ion/atom (it may neutralize) in solid xenon (SXe) at the end of a cold probe, and then detecting the ion/atom by its fluorescence in the SXe. Our group at CSU has been studying the fluorescence of Ba in SXe by laser excitation, in order to ultimately detect a single Ba +/Ba in a SXe sample. We present studies of fluorescence signals, as well as recent results on imaging small numbers of Ba atoms in SXe, in a focused laser region. This work is supported by grants from the National Science Foundation and the Department of Energy.

  9. Barium loss from the electrode of a low pressure Hg-Ar discharge at ignition

    SciTech Connect

    Moskowitz, P. [Osram Sylvania, Inc., Beverly, MA (United States)

    1997-12-31

    Using laser absorption, the authors have continued their measurements of the spatial and time dependent barium ion density in the vicinity of a thermionic cathode for a low pressure mercury-argon discharge. Barium is a constituent of the emissive coil coating in lamps and other discharge devices. Measurements were performed during ignition of the discharge, and can be used to determine the flux of barium from the coil during starting. Results were obtained for both d.c. and high frequency ({approximately}40 kHz) excitation. The experimental method utilizes multiple parallel laser beams traversing chords of the cylindrical 25mm diameter glass discharge chamber in the electrode region. The dye laser is tuned to a resonance line of the singly ionized barium ion. Hence, the attenuation of the beams is a measure of the chord averaged barium ion density. The data is Abel inverted to obtain radially dependent density information. Data are acquired from the moment of ignition until stable thermionic operation of the electrode is attained.

  10. Fabrication of dense, shaped barium cerate by the oxidation of solid metal-bearing precursors

    SciTech Connect

    Schmutzler, H.J.; Sandhage, K.H.; Nava, J.C. [Ohio State Univ., Columbus, OH (United States). Dept. of Materials Science and Engineering

    1996-06-01

    Some rare-earth-doped alkaline-earth cerates (e.g., Nd{sub 2}O{sub 3}-doped BaCeO{sub 3}) are proton conductors that can act as solid-state electrolytes in hydrogen or steam sensors, hydrogen pumps, steam electrolyzers, and fuel cells. In the present study, dense tapes of neodymia-doped barium cerate were produced by the oxidation of malleable Ba-CeH{sub 3}-Nd{sub 2}O{sub 3} precursor tapes. Precursor tapes were produced by cold-rolling either blended or milled mixtures of Ba, CeH{sub 3}, and Nd{sub 2}O{sub 3} within a silver can. X-ray diffraction, electron microprobe analyses, and thermogravimetric analyses were used to study the phase transformations resulting from heat treatments conducted at 300 to 900 C in pure, flowing oxygen. Barium peroxide and cerium dioxide, produced during oxidation at {le}300 C, reacted at {ge}500 C to form barium cerate. The rate of formation of barium cerate depended on the degree of milling of the solid metal-bearing precursor powder. Dense barium cerate tapes were obtained after heat treatment at 1,080 C.

  11. [Adsorption behavior of immobilized nanometer barium-strontium titanate for cadmium ion in water].

    PubMed

    Zhang, Dong; Zhang, Wen-Jie; Guan, Xin; Gao, Hong; He, Hong-Bo

    2009-03-01

    Nanometer barium-strontium titanate immobilized on silica gel G was successfully prepared by the citrate acid sol-gel method and characterized using X-ray diffraction (XRD), scanning electron microscope (SEM) and Fourier transform infrared spectrophotometer (FTIR). By means of the determination of flame atomic absorption spectrometry (FAAS), the adsorption behavior of immobilized nanometer-barium strontium titanate for cadmium ion was investigated. The results showed that the nanometer barium-strontium titanate was immobilized on the silica gel G firmly, gaining a new sort of adsorbent. And the cadmium ion studied could be quantitatively retained in the pH value range of 4-7. The adsorption behavior followed a Freundlich adsorption isotherm and a pseudo-second-order kinetic model. The thermodynamic constants of the adsorption process, such as enthalpy changes (deltaH), Gibbs free energy changes (deltaG) and entropy changes (deltaS), were evaluated. These showed that the adsorption of cadmium ion by immobilized nanometer barium-strontium titanate was endothermic and spontaneous physical process. The cadmium ion adsorbed could be completely eluted using 1 mol x L(-1) HNO3. A new method for the determination of trace cadmium ion in water based on this immobilized nanometer barium-strontium titanate preconcentration and FAAS determination was proposed. The method has been applied to the determination of trace cadmium ion in tap water and river water with satisfactory results. PMID:19455835

  12. The Sol-Gel Synthesis of Rare-Earth Ions Substituted Barium Hexaferrites and Magnetic Properties

    NASA Astrophysics Data System (ADS)

    Cai, S.; Xin, P. H.; Wang, P. F.; Zhang, B. B.; Han, Y. B.; Peng, X. L.; Hong, B.; Jin, H. X.; Gong, J.; Jin, D. F.; Ge, H. L.; Wang, X. Q.; Zhang, J.

    2013-10-01

    In this paper, a series of rare-earth-doped barium hexaferrite powders (Ba0.95Re0.05-Fe12O19 and Ba0.95Re0.05M0.05Fe11.95O19: Re = La, Pr, Sm, Nd, Gd, Dy, Yb; M = Zn2+, Mn2+, Mn0.52+Zn2+0.5) were synthesized by the sol-gel self-combustion technology. The phase composition and the magnetic properties of the as-prepared barium hexaferrites were characterized and discussed with X-ray diffraction (XRD) and vibrating sample magnetometer (VSM). The results showed that the barium hexaferrites exhibited the magnetoplumbite phase structure with the average diameter of 45 nm. Magnetic properties study revealed that the variation of the saturation magnetization (Ms) was similar with the change of the rare-earth ions radius, but the change of Ms was low. This indicated that the magnetic moments of rare-earth ions could not affect Ms. The magnetocrystalline anisotropy field mainly influenced the anisotropism of hexaferrites, and the coercivity (Hc) of the rare-earth ions doped barium hexaferrites basically decreased with the increasing orbital quantum numbers (except Sm3+ and Gd3+). Further study showed the co-addition of Zn2+ and Mn2+ did not change the trend of Ms and Hc. Thus, it is concluded that the rare-earth ions played an important role for the anisotropy field of barium hexaferrites.

  13. Risk of Criminal Victimisation in Outpatients with Common Mental Health Disorders

    PubMed Central

    Meijwaard, Sabine C.; Kikkert, Martijn; de Mooij, Liselotte D.; Lommerse, Nick M.; Peen, Jaap; Schoevers, Robert A.; Van, Rien; de Wildt, Wencke; Bockting, Claudi L. H.; Dekker, Jack J. M.

    2015-01-01

    Background Crime victimisation is a serious problem in psychiatric patients. However, research has focused on patients with severe mental illness and few studies exist that address victimisation in other outpatient groups, such as patients with depression. Due to large differences in methodology of the studies that address crime victimisation, a comparison of prevalence between psychiatric diagnostic groups is hard to make. Objectives of this study were to determine and compare one-year prevalence of violent and non-violent criminal victimisation among outpatients from different diagnostic psychiatric groups and to examine prevalence differences with the general population. Method Criminal victimisation prevalence was measured in 300 outpatients living in Amsterdam, The Netherlands. Face-to-face interviews were conducted with outpatients with depressive disorder (n = 102), substance use disorder (SUD, n = 106) and severe mental illness (SMI, n = 92) using a National Crime Victimisation Survey, and compared with a matched general population sample (n = 10865). Results Of all outpatients, 61% reported experiencing some kind of victimisation over the past year; 33% reported violent victimisation (3.5 times more than the general population) and 36% reported property crimes (1.2 times more than the general population). Outpatients with depression (67%) and SUD (76%) were victimised more often than SMI outpatients (39%). Younger age and hostile behaviour were associated with violent victimisation, while being male and living alone were associated with non-violent victimisation. Moreover, SUD was associated with both violent and non-violent victimisation. Conclusion Outpatients with depression, SUD, and SMI are at increased risk of victimisation compared to the general population. Furthermore, our results indicate that victimisation of violent and non-violent crimes is more common in outpatients with depression and SUD than in outpatients with SMI living independently in the community. PMID:26132200

  14. Psychiatric Diagnoses among an HIV-Infected Outpatient Clinic Population.

    PubMed

    Shacham, Enbal; Onen, Nur F; Donovan, Michael F; Rosenburg, Neal; Overton, E Turner

    2014-10-27

    As individuals with HIV infection are living longer, the management of psychiatric disorders has increasingly been incorporated into comprehensive care. Individuals were recruited from an outpatient HIV clinic to assess the prevalence and related associations of current psychiatric disorders and biomarkers. Of the 201 participants who completed the interviews, the median age was 43.5 years, and the majority was male and African American. Most were receiving HIV therapy and 78% of those had achieved virologic suppression. Prevalent psychiatric diagnoses included major depressive disorder, generalized anxiety, and agoraphobia. Alcohol and cocaine/crack abuse and dependence were common substance use disorders. Current receipt of HIV therapy was less common among those diagnosed with generalized anxiety disorder. Agoraphobia was the only disorder associated with unsuppressed viral load. Psychiatric and substance use disorders are highly prevalent among an urban HIV clinic population, although we identified few associations between psychiatric diagnoses and HIV diseases status. PMID:25348798

  15. Clinical documentation improvement for outpatients by implementing electronic medical records.

    PubMed

    Seto, Ryoma; Inoue, Toshitaka; Tsumura, Hiroshi

    2014-01-01

    This observational study was conducted before and after implementing an electronic medical record (EMR) system to evaluate the change in outpatient workflow by implementation of EMR and the effectiveness of clinical documentation improvement (CDI). The number of hours for patient care increased by 89.2% (p < .05) and the hours for writing medical records after consulting decreased after implementation of EMR by 27.3% (p < .01). Implementation of EMR reduced nurses' workload to handle medical records by 78.8 (p < .05) but not changed for physicians. The necessary change in the information management process occurred after using the CDI indicator. We recommend that the "working hours of health professionals" and "handling hours for information resources" should be used widely as CDI indicators to improve workflow when implementing EMR. PMID:24943531

  16. Engagement and Retention in Outpatient Alcoholism Treatment for Women

    PubMed Central

    Graff, Fiona S.; Morgan, Thomas J.; Epstein, Elizabeth E.; McCrady, Barbara S.; Cook, Sharon M.; Jensen, Noelle K.; Kelly, Shalonda

    2011-01-01

    Reviews of the dropout literature note significant attrition from addiction treatment. However, consistent predictors have not been identified and few studies have examined factors related to retention and engagement for women in gender-specific treatment. The current study consisted of 102 women and their partners randomized to individual or couples outpatient alcoholism treatment. Women attended more treatment sessions if they were assigned to individual treatment, older, had fewer symptoms of alcohol dependence, had more satisfying marital relationships, had spouses who drank, and had matched preference for treatment condition. Women were more engaged in treatment (i.e., completed more assigned homework) if they had fewer children at home, fewer alcohol dependence symptoms, later age of onset of alcohol diagnosis, more satisfying marital relationships, and spouses who accepted or encouraged their drinking. Results highlight important associations of treatment and relationship variables with treatment retention and engagement. PMID:19444731

  17. [Sportstherapy for outpatients with eating disorders: a pilot project].

    PubMed

    Schlegel, Sabine; Hafner, Donata; Hartmann, Armin; Fuchs, Reinhard; Zeeck, Almut

    2012-12-01

    Many patients with Anorexia and Bulimia Nervosa (AN, BN) engage in sport and physical activity in an excessive and compulsive manner, mostly to influence weight and shape. Many of them experience guilt in case of not exercising. However, sport and physical exercise can also have a positive effect on mental illness by influencing mood, sense of self-esteem and body experience. Until now, only few programs for eating disorder patients exist which aim at changing physical activity behavior and use sport and exercise activities in a therapeutic way. We developed a sport-therapeutic program designed for outpatients with eating disorders. It supervises sport and physical exercise and helps patients to use sport and exercise in a healthy manner. This report presents the program's manual and first experiences based on half-standardized interviews. PMID:23247620

  18. Hypovitaminosis D among rheumatology outpatients in clinical practice

    PubMed Central

    Mouyis, M.; Ostor, A. J. K.; Crisp, A. J.; Ginawi, A.; Halsall, D. J.; Shenker, N.

    2008-01-01

    Objectives. A role for vitamin D in the pathogenesis of autoimmune and inflammatory diseases is emerging. We undertook an audit of 25-hydroxyvitamin D (25OHD) investigation and treatment in rheumatology outpatients. Methods. Serum 25OHD requests were matched to electronic medical records from rheumatology and metabolic bone clinics (April 2006–March 2007). Data were analysed separately for two groups, ‘Documented osteoporosis/osteopaenia’ (Group 1) and ‘General rheumatology outpatients’ (Group 2, sub-divided by diagnosis). Hypovitaminosis D was defined by 25OHD levels <50 nmol/l. Values were compared with healthy adults to calculate geometric z-scores. Results. A total of 263 patients were included (Group 1, n = 122; Group 2, n = 141) with an overall median 25OHD of 44 nmol/l.The 25OHD level among general rheumatology patients (median 39 nmol/l, mean z score ?1.2, was statistically significantly lower than among osteoporotic/osteopaenic patients (median 49 nmol/l, mean z score of ?0.9, p < 0.05 for the difference). 25OHD was lower in inflammatory arthritis and chronic pain/fibromyalgia than in other groups. Prescribing was recorded in 100 in Group 1 (of whom 95% were prescribed calcium/800 IU cholecalciferol) and 83 in Group 2 (91% calcium/800 IU). Only 31% of the patients with 25OHD <50 nmol/l would have been identified using general guidelines for screening patients at ‘high risk’ of hypovitaminosis D. Conclusions. Improved guidelines for managing hypovitaminosis D in rheumatology patients are needed. We found a high prevalence of hypovitaminosis D among secondary care patients in rheumatology and widespread supplementation with 800 IU cholecalciferol. Substantially reduced levels of serum 25OHD were identified among patients with inflammatory arthritis and chronic pain. PMID:18499714

  19. Polyneuropathy in Australian outpatients with type II diabetes mellitus.

    PubMed

    de Wytt, C N; Jackson, R V; Hockings, G I; Joyner, J M; Strakosch, C R

    1999-01-01

    In order to determine the local prevalence of polyneuropathy among adult outpatients with type II (non-insulin-dependent) diabetes mellitus, we applied a series of standardised measures to patients attending a multidisciplinary diabetes clinic. The study group comprised 94 men and 15 women; mean age, 70.6+/-7.8 years; mean duration of diabetes, 11.7+/-10.1 years; and mean HbA1c 8.3%+/-1.7%. Neuropathy Symptom Scores > or = 1 were present in 97% of patients (mean, 3+/-2; range, 0-12), and 95% had Neuropathy Disability Scores > or = 2 (mean, 27+/-19; range, 0-87). 52% of men reported impotence. Autonomic dysfunction on cardiovascular reflex testing was present in 46% of patients (39/84). Finger and toe vibration perception thresholds were greater than 3SD higher than mean thresholds measured in control subjects without diabetes in 43% and 58% of patients, respectively. Polyneuropathy, defined as lower limb sensory and motor nerve conduction velocity or latency outside mean +/-2 SD of that measured in age-matched controls, was present in 49% of patients (53/109). These results suggest that there is a high prevalence of polyneuropathy in Australian out-patients with type II diabetes mellitus. In this study, clinical assessment using Neuropathy Disability Scores was not diagnostically useful since only five patients had a normal score. Using nerve-conduction studies as the "gold standard" diagnostic criteria, the best alternative test for the presence of polyneuropathy was toe vibration perception threshold (sensitivity 74%, specificity 56%). In view of the emerging evidence that intensive glycaemic control reduces the rate of progression of polyneuropathy, we recommend that patients with type II diabetes mellitus have nerve-conduction studies performed for early detection of this important complication. PMID:10432170

  20. Association between autoimmune thyroiditis and depressive disorder in psychiatric outpatients.

    PubMed

    Degner, Detlef; Haust, Merle; Meller, Johannes; Rüther, Eckart; Reulbach, Udo

    2015-02-01

    Thyroid diseases are often associated with psychiatric disorders. The prevalence of autoimmune thyroiditis in the general population is estimated to be at about 5-14 %. A clinical study was conducted to evaluate the association between autoimmune thyroiditis and depression in psychiatric outpatients. Fifty-two patients with depression and nineteen patients with schizophrenia (serving as control group), attending a psychiatric outpatient unit, were included. In addition to the measurement of thyroid-stimulating hormone (TSH), free triiodothyronine, free thyroxine, antithyroid peroxidase (anti-TPO) antibodies, and anti-thyroglobulin antibodies, ultrasound examination of the thyroid gland was performed. The proportion of pathologically increased anti-TPO levels in patients with depression was high. Furthermore, the distribution of pathologically increased anti-TPO levels was significantly (? (2) = 5.5; p = 0.019) different between patients with depression (32.7 %) and patients with schizophrenia (5.3 %). In a gender- and age-adjusted logistic regression, the odds ratio of uni- or bipolar patients with depression for an autoimmune thyroiditis was ten times higher (95 % CI = 1.2-85.3) when compared with schizophrenia patients. TSH basal level did not differ between patients with depression and patients with schizophrenia. Our study demonstrates a strong association between anti-TPO levels, which are considered to be of diagnostic value for autoimmune thyroiditis (in combination with a hypoechoic thyroid in ultrasonography) with uni- or bipolar depression. It should be noted that the routinely measured TSH level is not sufficient in itself to diagnose this relevant autoimmune comorbidity. PMID:25193677

  1. Evaluation of periodontitis in hospital outpatients with major depressive disorder

    PubMed Central

    Solis, A. C. O.; Marques, A. H.; Pannuti, C. M.; Lotufo, R. F. M.; Lotufo-Neto, F.

    2013-01-01

    Background and Objective Major depressive disorder (MDD) has been associated with alterations in the neuroendocrine system and immune function and may be associated with an increased susceptibility to cardiovascular disease, cancer and autoimmune/inflammatory disease. This study was conducted to investigate the relationship between periodontitis and MDD in a convenience sample of hospital outpatients. Material and Methods The sample consisted of 72 physically healthy subjects (36 outpatients with MDD and 36 age-matched controls [± 3 years]). Patients with bipolar disorder, eating disorders and psychotic disorders were excluded. Probing pocket depth and clinical attachment level were recorded at six sites per tooth. Depression was assessed by means of Structured Clinical Interview for DSM-IV. Results Extent of clinical attachment level and probing pocket depth were not different between controls and subjects with depression for the following thresholds: ? 3 mm (Mann-Whitney, p = 0.927 and 0.756); ? 4 mm (Mann-Whitney, p = 0.656 and 0.373); ? 5 mm (Mann-Whitney, p = 0.518 and 0.870);, and ? 6 mm (Mann-Whitney, p = 0.994 and 0.879). Depression parameters were not associated with clinical attachment level ? 5 mm in this sample. Smoking was associated with loss of attachment ? 5 mm in the multi-variable logistic regression model (odds ratio = 6.99, 95% confidence interval = 2.00–24.43). Conclusions In this sample, periodontal clinical parameters were not different between patients with MDD and control subjects. There was no association between depression and periodontitis. PMID:23586804

  2. The role of thermally-induced internal stresses on the tunability of textured barium strontium titanate films

    E-print Network

    Alpay, S. Pamir

    The role of thermally-induced internal stresses on the tunability of textured barium strontium) The tunability of highly textured thin films of barium strontium titanate (Ba0.5Sr0.5TiO3, BST) is analyzed

  3. Q factor of dual-tunable microwave resonators based on yttrium iron garnet and barium strontium titanate layered structures

    E-print Network

    Srinivasan, Gopalan

    Q factor of dual-tunable microwave resonators based on yttrium iron garnet and barium strontium of dual-tunable ferrite-ferroelectric hybrid wave microwave resonator was studied as a function of bias 500 m plate of ceramic barium strontium titanate having similar in-plane sizes. A frequency spectrum

  4. 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 force of the process leads to reduction of the surface energy of the system.19 Lead zirconate titanate

  5. Initial growth stages of titanium and barium oxide films on SrTiO3(001) Chen Wu, Karen Kruska, Martin R. Castell

    E-print Network

    Castell, Martin

    Initial growth stages of titanium and barium oxide films on SrTiO3(001) Chen Wu, Karen Kruska titanium and barium oxide films were grown on SrTiO3(001) substrate surfaces via Ti/Ba deposition Elsevier B.V. All rights reserved. 1. Introduction Interest in the growth of titanium and barium oxide thin

  6. 78 FR 13346 - Medicare Program; Changes to the Semi-Annual Meeting of the Advisory Panel on Hospital Outpatient...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-02-27

    ...Advisory Panel on Hospital Outpatient Payment (HOP Panel)--March 11 and March 12, 2013...Advisory Panel on Hospital Outpatient Payment (HOP Panel)--March 11 and 12, 2013...Advisory Panel on Hospital Outpatient Payment (HOP, the Panel) for 2013. We note that...

  7. Cathode temperature reduction by addition of Barium in high power Lithium plasma thrusters

    NASA Astrophysics Data System (ADS)

    Polk, James; Tikhonov, Viktor; Semenikhin, Sergei; Kim, Vladimir

    2000-01-01

    Lithium Lorentz Force Accelerators (LFA's) are capable of processing very high power levels and are therefore applicable to a wide range of challenging missions. The cathode in these coaxial discharge devices operates at a very high temperature to supply the required current and appears to be the primary life-limiting component. One potential method for lowering the cathode temperature is to add a small amount of barium to the lithium propellant. An analytical model of the surface kinetics of this system shows that a relatively small partial pressure of barium can dramatically reduce the cathode operating temperature. Preliminary experiments with a lithium-fuelled thruster demonstrated temperature reductions of 350-400 K with barium addition. .

  8. The L equals 6.7 quiet time barium shaped charge injection experiment 'Chachalaca'

    NASA Technical Reports Server (NTRS)

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

    1975-01-01

    Near dawn on October 9, 1972, UT, a barium plasma injection experiment was carried out from Poker Flat, Alaska, during quiet magnetic conditions (Kp equals 1+). The visible plasma flux tube produced was more diffuse than the flux tubes in previous experiments, but it could be tracked for 30 min out to an altitude of 2.5 earth radii. The flux tube remained integral for about 20 min, when a single striation separated from the main streak. Comparisons of the observed flux tube orientation with theoretical field models show no significant deviations ascribable to field-aligned currents. Cross-field drift rates of the foot of the flux tube indicate an E field of approximately 7 mV/m at 200-km altitude. Although an attempt was made via a jet aircraft flight, barium ions were not detected in the southern conjugate region. No energetic particle precipitation phenomena were observed which could be ascribed to the barium plasma injection.

  9. Improved chemical stability and conductivity of barium cerate nanopowders by Lanthanum doping.

    PubMed

    Lee, Hunhyeong; Park, Inyu; Shin, Dongwook

    2013-09-01

    Despite of the highest proton conductivity, barium cerate electrolytes are well known for the deficiency of chemical stability at elevated temperature under CO2 atmosphere. This work is focused on improving chemical stability of lanthanum doped barium cerate (BCL) powder for electrolyte. Although lanthanum doping causes distortion of perovskite structure lattice, immoderate doping could stabilize structure due to increasing symmetry of structure lattices. The thermogravimetric analysis and AC impedance measurements revealed that the lanthanum doping suppresses the reaction between barium and carbonate and this effect results in sufficient improvement in ionic conductivity in operating temperatures range. It was confirmed that BaCe0.7La0.3O3-delta (BCL30) was the most stable composition and the conductivity of BCL30 is high as 3.8 S x cm(-1) x K at 700 degrees C. PMID:24205607

  10. Prompt ionization in the CRIT II barium releases. [Critical Ionization Tests

    NASA Technical Reports Server (NTRS)

    Torbert, R. B.; Kletzing, C. A.; Liou, K.; Rau, D.

    1992-01-01

    Observations of electron and ion distributions inside a fast neutral barium jet in the ionosphere show significant fluxes within 4 km of release, presumably related to beam plasma instability processes involved in the Critical Ionization Velocity (CIV) effect. Electron fluxes exceeding 5 x 10 exp 12/sq cm-str-sec-keV were responsible for ionizing both the streaming barium and ambient oxygen. Resulting ion fluxes seem to be consistent with 1-2 percent ionization of the fast barium, as reported by optical observations, although the extended spatial distribution of the optically observed ions is difficult to reconcile with the in situ observations. When the perpendicular velocity of the neutrals falls below critical values, these processes shut off. Although these observations resemble the earlier Porcupine experimental results (Haerendel, 1982), theoretical understanding of the differences between these data and that of earlier negative experiments is still lacking.

  11. Are There Any Stars Lacking Neutron-Capture Elements? Evidence from Strontium and Barium

    E-print Network

    Roederer, Ian U

    2012-01-01

    The cosmic dispersion in the abundances of the heavy elements strontium and barium in halo stars is well known. Strontium and barium are detected in most cool, metal-poor giants, but are these elements always detectable? To identify stars that could be considered probable candidates for lacking these elements, I examine the stellar abundance data available in the literature for 1148 field stars and 226 stars in dwarf galaxies, 776 of which have metallicities lower than [Fe/H]Strontium or barium have been detected in all field, globular cluster, and dwarf galaxy environments studied. All upper limits are consistent with the lowest detected ratios of [Sr/H] and [Ba/H]. The frequent appearance of these elements raises the intriguing prospect that at least one kind of neutron-capture reaction operates as often as the nucleosynthesis mechanisms that produce lighter elements, like magnesium, calcium, or iron, although the yields of heavy elements may be more variable.

  12. Spectroscopy of Ba and Ba$^+$ deposits in solid xenon for barium tagging in nEXO

    E-print Network

    Mong, B; Walton, T; Chambers, C; Craycraft, A; Benitez-Medina, C; Hall, K; Fairbank, W; Albert, J B; Auty, D J; Barbeau, P S; Basque, V; Beck, D; Breidenbach, M; Brunner, T; Cao, G F; Cleveland, B; Coon, M; Daniels, T; Daugherty, S J; DeVoe, R; Didberidze, T; Dilling, J; Dolinski, M J; Dunford, M; Fabris, L; Farine, J; Feldmeier, W; Fierlinger, P; Fudenberg, D; Giroux, G; Gornea, R; Graham, K; Gratta, G; Heffner, M; Hughes, M; Jiang, X S; Johnson, T N; Johnston, S; Karelin, A; Kaufman, L J; Killick, R; Koffas, T; Kravitz, S; Krucken, R; Kuchenkov, A; Kumar, K S; Leonard, D S; Licciardi, C; Lin, Y H; Ling, J; MacLellan, R; Marino, M G; Moore, D; Odian, A; Ostrovskiy, I; Piepke, A; Pocar, A; Retiere, F; Rowson, P C; Rozo, M P; Schubert, A; Sinclair, D; Smith, E; Stekhanov, V; Tarka, M; Tolba, T; Twelker, K; Vuilleumier, J -L; Walton, J; Weber, M; Wen, L J; Wichoski, U; Yang, L; Yen, Y -R; Zhao, Y B

    2014-01-01

    Progress on a method of barium tagging for the nEXO double beta decay experiment is reported. Absorption and emission spectra for deposits of barium atoms and ions in solid xenon matrices are presented. Excitation spectra for prominent emission lines, temperature dependence and bleaching of the fluorescence reveal the existence of different matrix sites. A regular series of sharp lines observed in Ba$^+$ deposits is identified with some type of barium hydride molecule. Lower limits for the fluorescence quantum efficiency of the principal Ba emission transition are reported. Under current conditions, an image of $\\le10^4$ Ba atoms can be obtained. Prospects for imaging single Ba atoms in solid xenon are discussed.

  13. Highly aligned arrays of high aspect ratio barium titanate nanowires via hydrothermal synthesis

    NASA Astrophysics Data System (ADS)

    Bowland, Christopher C.; Malakooti, Mohammad H.; Zhou, Zhi; Sodano, Henry A.

    2015-06-01

    We report on the development of a hydrothermal synthesis procedure that results in the growth of highly aligned arrays of high aspect ratio barium titanate nanowires. Using a multiple step, scalable hydrothermal reaction, a textured titanium dioxide film is deposited on titanium foil upon which highly aligned nanowires are grown via homoepitaxy and converted to barium titanate. Scanning electron microscope images clearly illustrate the effect the textured film has on the degree of orientation of the nanowires. The alignment of nanowires is quantified by calculating the Herman's Orientation Factor, which reveals a 58% improvement in orientation as compared to growth in the absence of the textured film. The ferroelectric properties of barium titanate combined with the development of this scalable growth procedure provide a powerful route towards increasing the efficiency and performance of nanowire-based devices in future real-world applications such as sensing and power harvesting.

  14. Solid solution barium-strontium chlorides with tunable ammonia desorption properties and superior storage capacity

    NASA Astrophysics Data System (ADS)

    Bialy, Agata; Jensen, Peter B.; Blanchard, Didier; Vegge, Tejs; Quaade, Ulrich J.

    2015-01-01

    Metal halide ammines are very attractive materials for ammonia absorption and storage-applications where the practically accessible or usable gravimetric and volumetric storage densities are of critical importance. Here we present, that by combining advanced computational materials prediction with spray drying and in situ thermogravimetric and structural characterization, we synthesize a range of new, stable barium-strontium chloride solid solutions with superior ammonia storage densities. By tuning the barium/strontium ratio, different crystallographic phases and compositions can be obtained with different ammonia ab- and desorption properties. In particular it is shown, that in the molar range of 35-50% barium and 65-50% strontium, stable materials can be produced with a practically usable ammonia density (both volumetric and gravimetric) that is higher than any of the pure metal halides, and with a practically accessible volumetric ammonia densities in excess of 99% of liquid ammonia.

  15. Phase transition studies in barium and strontium titanates at microwave frequencies

    NASA Technical Reports Server (NTRS)

    Dahiya, Jai N.

    1993-01-01

    The objectives were the following: to understand the phase transformations in barium and strontium titanates as the crystals go from one temperature to the other; and to study the dielectric behavior of barium and strontium titanate crystals at a microwave frequency of 9.12 GHz and as a function of temperature. Phase transition studies in barium and strontium titanate are conducted using a cylindrical microwave resonant cavity as a probe. The cavity technique is quite successful in establishing the phase changes in these crystals. It appears that dipole relaxation plays an important role in the behavior of the dielectric response of the medium loading the cavity as phase change takes place within the sample. The method of a loaded resonant microwave cavity as applied in this work has proven to be sensitive enough to monitor small phase changes of the cavity medium.

  16. Health Services OutPatient Experience questionnaire: factorial validity and reliability of a patient-centered outcome measure for outpatient settings in Italy

    PubMed Central

    Coluccia, Anna; Ferretti, Fabio; Pozza, Andrea

    2014-01-01

    Purpose The patient-centered approach to health care does not seem to be sufficiently developed in the Italian context, and is still characterized by the biomedical model. In addition, there is a lack of validated outcome measures to assess outpatient experience as an aspect common to a variety of settings. The current study aimed to evaluate the factorial validity, reliability, and invariance across sex of the Health Services OutPatient Experience (HSOPE) questionnaire, a short ten-item measure of patient-centeredness for Italian adult outpatients. The rationale for unidimensionality of the measure was that it could cover global patient experience as a process common to patients with a variety of diseases and irrespective of the phase of treatment course. Patients and methods The HSOPE was compiled by 1,532 adult outpatients (51% females, mean age 59.22 years, standard deviation 16.26) receiving care in ten facilities at the Santa Maria alle Scotte University Hospital of Siena, Italy. The sample represented all the age cohorts. Twelve percent were young adults, 57% were adults, and 32% were older adults. Exploratory and confirmatory factor analyses were conducted to evaluate factor structure. Reliability was evaluated as internal consistency using Cronbach’s ?. Factor invariance was assessed through multigroup analyses. Results Both exploratory and confirmatory analyses suggested a clearly defined unidimensional structure of the measure, with all the ten items having salient loadings on a single factor. Internal consistency was excellent (?=0.95). Indices of model fit supported a single-factor structure for both male and female outpatient groups. Young adult outpatients had significantly lower scores on perceived patient-centeredness relative to older adults. No significant difference emerged on patient-centeredness between male and female outpatients. Conclusion The HSOPE questionnaire seemed to be a tool with high acceptability and excellent psychometric properties to measure patient-centeredness as a unidimensional construct. Limitations and implications for future research are discussed. PMID:25228826

  17. FIRST DIRECT EVIDENCE THAT BARIUM DWARFS HAVE WHITE DWARF COMPANIONS

    SciTech Connect

    Gray, R. O.; McGahee, C. E. [Department of Physics and Astronomy, Appalachian State University, Boone, NC 28608 (United States); Griffin, R. E. M. [Herzberg Institute of Astrophysics, National Research Council, 5071 West Saanich Road, Victoria, BC V9E 2E7 (Canada); Corbally, C. J., E-mail: grayro@appstate.edu, E-mail: cmcgahe@g.clemson.edu, E-mail: Elizabeth.Griffin@hia.nrc.ca, E-mail: corbally@as.arizona.edu [Vatican Observatory Research Group, Steward Observatory, Tucson, AZ 85721-0065 (United States)

    2011-05-15

    Barium II (Ba) stars are chemically peculiar F-, G-, and K-type objects that show enhanced abundances of s-process elements. Since s-process nucleosynthesis is unlikely to take place in stars prior to the advanced asymptotic giant branch (AGB) stage, the prevailing hypothesis is that each present Ba star was contaminated by an AGB companion which is now a white dwarf (WD). Unless the initial mass ratio of such a binary was fairly close to unity, the receiving star is thus at least as likely to be a dwarf as a giant. So although most known Ba stars appear to be giants, the hypothesis requires that Ba dwarfs be comparably plentiful and moreover that they should all have WD companions. However, despite dedicated searches with the IUE satellite, no WD companions have been directly detected to date among the classical Ba dwarfs, even though some 90% of those stars are spectroscopic binaries, so the contamination hypothesis is therefore presently in some jeopardy. In this paper, we analyze recent deep, near-UV and far-UV Galaxy Evolution Explorer (GALEX) exposures of four of the brightest of the class (HD 2454, 15360, 26367, and 221531), together with archived GALEX data for two newly recognized Ba dwarfs: HD 34654 and HD 114520 (which also prove to be spectroscopic binaries). The GALEX observations of the Ba dwarfs as a group show a significant far-UV excess compared to a control sample of normal F-type dwarfs. We suggest that this ensemble far-UV excess constitutes the first direct evidence that Ba dwarfs have WD companions.

  18. Electrical properties of niobium doped barium bismuth-titanate ceramics

    SciTech Connect

    Bobi?, J.D., E-mail: jelenabobic@yahoo.com [Institute for Multidisciplinary Researches, Belgrade University, Kneza Viseslava 1, Belgrade (Serbia); Vijatovi? Petrovi?, M.M. [Institute for Multidisciplinary Researches, Belgrade University, Kneza Viseslava 1, Belgrade (Serbia)] [Institute for Multidisciplinary Researches, Belgrade University, Kneza Viseslava 1, Belgrade (Serbia); Banys, J. [Faculty of Physics, Vilnius University, 9 Sauletekio Str., Vilnius (Lithuania)] [Faculty of Physics, Vilnius University, 9 Sauletekio Str., Vilnius (Lithuania); Stojanovi?, B.D. [Institute for Multidisciplinary Researches, Belgrade University, Kneza Viseslava 1, Belgrade (Serbia)] [Institute for Multidisciplinary Researches, Belgrade University, Kneza Viseslava 1, Belgrade (Serbia)

    2012-08-15

    Highlights: ? Pure and doped BaBi{sub 4}Ti{sub 4}O{sub 15} were prepared via the solid-state reaction method. ? The grain size was suppressed in Nb-doped samples. ? The diffuseness of the dielectric peak increased with dopant concentration. ? Niobium affected on relaxor behavior of barium bismuth titanate ceramics. ? The conductivity change was noticed in doped samples. -- Abstract: BaBi{sub 4}Ti{sub 4–5/4x}Nb{sub x}O{sub 15} (BBNTx, x = 0, 0.05, 0.15, 0.30) ceramics have been prepared by solid state method. XRD data indicate the formation of single-phase-layered perovskites for all compositions. SEM micrographs suggest that the grain size decreases with Nb doping. The effect of niobium doping on the dielectric and relaxor behavior of BaBi{sub 4}Ti{sub 4}O{sub 15} ceramics was investigated in a wide range of temperatures (20–777 °C) and frequencies (1.21 kHz to 1 MHz). Nb doping influences T{sub c} decrease as well as the decrease of dielectric permittivity at Curie temperature. At room temperature, undoped BaBi{sub 4}Ti{sub 4}O{sub 15} exhibits dielectric constant of ?204 at 100 kHz, that slightly increases with Nb doping. The conductivity of BBNT5 ceramics is found to be lower than that of other investigated compositions. The value of activation energy of ?{sub DC} was found to be 0.89 eV, 1.01 eV, 0.93 eV and 0.71 eV for BBT, BBNT5, BBNT15 and BBNT30, respectively.

  19. Evaluation of antibacterial properties of Barium Zirconate Titanate (BZT) nanoparticle

    PubMed Central

    Mohseni, Simin; Aghayan, Mahdi; Ghorani-Azam, Adel; Behdani, Mohammad; Asoodeh, Ahmad

    2014-01-01

    So far, the antibacterial activity of some organic and inorganic compounds has been studied. Barium zirconate titanate [Ba(ZrxTi1-x)O3] (x = 0.05) nanoparticle is an example of inorganic materials. In vitro studies have provided evidence for the antibacterial activity of this nanoparticle. In the current study, the nano-powder was synthesized by sol-gel method. X-ray diffraction showed that the powder was single-phase and had a perovskite structure at the calcination temperature of 1000 °C. Antibacterial activity of the desired nanoparticle was assessed on two gram-positive (Staphylococcus aureus PTCC1431 and Micrococcus luteus PTCC1625) and two gram-negative (Escherichia coli HP101BA 7601c and clinically isolated Klebsiella pneumoniae) bacteria according to Radial Diffusion Assay (RDA). The results showed that the antibacterial activity of BZT nano-powder on both gram-positive and gram-negative bacteria was acceptable. The minimum inhibitory concentration of this nano-powder was determined. The results showed that MIC values for E. coli, K. pneumoniae, M. luteus and S. aureus were about 2.3 ?g/mL, 7.3 ?g/mL, 3 ?g/mL and 12 ?g/mL, respectively. Minimum bactericidal concentration (MBC) was also evaluated and showed that the growth of E. coli, K. pneumoniae, M. luteus and S. aureus could be decreased at 2.3, 14, 3 and 18 ?g/mL of BZT. Average log reduction in viable bacteria count in time-kill assay ranged between 6 Log10 cfu/mL to zero after 24 h of incubation with BZT nanoparticle. PMID:25763046

  20. Dielectric and Impedance Spectroscopy of Barium Orthoniobate Ceramic

    NASA Astrophysics Data System (ADS)

    Pati, Biswajit; Choudhary, R. N. P.; Das, Piyush R.; Parida, B. N.; Padhee, R.

    2013-06-01

    Barium orthoniobate (Ba3Nb2O8), a derivative of the perovskite family, was prepared using a high-temperature solid-state reaction technique (calcination temperature = 1425°C and sintering temperature = 1450°C for 4 h). Preliminary x-ray structural analysis with room-temperature x-ray diffraction data confirmed the formation of a single-phase compound with hexagonal crystal structure. Study of the microstructure of a gold-coated pellet by scanning electron microscopy (SEM) showed that the sample has well-defined grains that are distributed uniformly throughout the surface of the sample. Detailed studies showed that the dielectric parameters ( ? r and tan ?) of the compound at three different frequencies (10 kHz, 100 kHz, and 1000 kHz) are almost constant in the low-temperature region (from room temperature to about 200°C). An anomaly in the relative permittivity ( ? r) (˜357°C) suggests the possible existence of a ferroelectric-paraelectric phase transition of diffuse type in the material. Detailed studies of impedance and related parameters show that the electrical properties of the material are strongly dependent on temperature, showing good correlation with its microstructure. The bulk resistance (evaluated from impedance studies) is found to decrease with increasing temperature. This shows that the material has negative temperature coefficient of resistance (NTCR), similar to that of semiconductors. Studies of electric modulus indicate the presence of a hopping conduction mechanism in the system with nonexponential-type conductivity relaxation. The nature of the variation of the direct-current (dc) conductivity with temperature confirms the Arrhenius and NTCR behavior in the material. The alternating-current (ac) conductivity spectra show a typical signature of an ionic conducting system and are found to obey Jonscher's universal power law.

  1. Physical Property of Magnesium Doped Barium Hexaferrite Particles By Citrate Precursor Route In Presence Of Surfactants

    NASA Astrophysics Data System (ADS)

    Paladiya, Snehal; Chauhan, C. C.; Jotania, R. B.

    2010-12-01

    M-type Barium Magnesium hexaferrite with the composition BaMg2Fe10O19 was successfully prepared with and without surfactant by using a citrate precursor route. The obtained precursors were calcined at various temperatures. The crystalline structure, phase analysis and particle size were investigated by using X-ray diffraction (XRD), Fourier Transform infrared spectroscopy (FTIR), Scanning Electron Microscopy (SEM) techniques. It is observed that the surfactant addition controls the microstructure of the formed Barium Magnesium hexaferrite particles and the type of surfactant plays a crucial role in deciding the morphology of particles.

  2. Histopathological and microanalytical study of zirconium dioxide and barium sulphate in bone cement.

    PubMed Central

    Keen, C. E.; Philip, G.; Brady, K.; Spencer, J. D.; Levison, D. A.

    1992-01-01

    AIMS: To report the appearances of zirconium dioxide and barium sulphate in interface membranes, synovium, and other tissues around joint prostheses. METHODS: Histological sections from 23 specimens were reviewed by light microscopy and polarisation. Scanning electron microscopy and x ray microanalysis were performed on routinely processed paraffin wax sections. RESULTS: Polyethylene, metals, and polymethylmethacrylate cement debris were easily recognisable. Almost all the cement remnants contained either zirconium dioxide or barium sulphate, confirmed by microanalysis. The contrast media had characteristic light microscopic appearances. Zirconium was identified in macrophages away from cement remnants. CONCLUSION: The presence of radiographic contrast media in tissues around prosthetic joints is common but not widely recognised. Images PMID:1452794

  3. Volatile barium. beta. -diketonate polyether adducts. Synthesis, characterization, and metalloorganic chemical vapor deposition

    Microsoft Academic Search

    R. Gardiner; D. W. Brown; P. S. Kirlin; A. L. Rheingold

    2009-01-01

    The 2,5,8,11,14-pentaoxopentadecane (tetraglyme) adducts of barium complexes of 1,1,1,5,5,5-hexafluoro-2,4-pentanedione (H(hfacac)), 1,1,1-trifluoro-2,4-pentanedione (H(tfacac)), and 2,2,6,6-tetramethyl-3,5-heptanedione (H(thd)) have been prepared and characterized by X-ray crystallography, ¹H and ¹³C NMR spectroscopies, melting and sublimation points, and elemental analysis. The thermal stability of the complexes is related to their solid-state structure in which the coordination number around the barium atom is nine with a

  4. Growth and characterization studies on glycine barium dichloride single crystals for NLO applications

    NASA Astrophysics Data System (ADS)

    Prakash, J. Thomas Joseph; Vijayan, N.; Kumararaman, S.

    2008-12-01

    The novel nonlinear optical single crystal of glycine barium chloride has been successfully synthesized by taking the appropriate amount of glycine and barium dichloride and single crystals have been grown by slow evaporation solution growth technique at room temperature. The grown single crystals have been analyzed with XRD, FT-IR, TG/DTA measurements. Its mechanical behavior has been assessed by Vickers Microhardness measurements. Its nonlinear optical property has been tested by Kurtz powder technique. Its optical behavior was examined by UV-vis, and found that the crystal is transparent in the region between 250 and 1200 nm.

  5. Growth and characterization studies on glycine barium dichloride single crystals for NLO applications.

    PubMed

    Prakash, J Thomas Joseph; Vijayan, N; Kumararaman, S

    2008-12-15

    The novel nonlinear optical single crystal of glycine barium chloride has been successfully synthesized by taking the appropriate amount of glycine and barium dichloride and single crystals have been grown by slow evaporation solution growth technique at room temperature. The grown single crystals have been analyzed with XRD, FT-IR, TG/DTA measurements. Its mechanical behavior has been assessed by Vickers Microhardness measurements. Its nonlinear optical property has been tested by Kurtz powder technique. Its optical behavior was examined by UV-vis, and found that the crystal is transparent in the region between 250 and 1200 nm. PMID:18440858

  6. Spectral interferences from polyatomic barium ions in inductively coupled plasma mass spectrometry

    Microsoft Academic Search

    E. V. Smirnova; I. N. Mysovskaya; V. I. Lozhkin; G. P. Sandimirova; N. N. Pakhomova; A. A. Smagunova

    2006-01-01

    For the Element2 (a relatively new high-sensitivity magnetic sector ICP MS), we have studied spectral interferences from barium\\u000a arising as a result of polyatomic barium ions, which have a considerable effect on the intensity of lines for rare-earth isotopes.\\u000a We have shown that the parameters characterizing the interferences (the ratios of the signals from oxygen-containing, chlorine-containing,\\u000a and fluorine-containing BaX+ ions

  7. Stability of barium oxides in REBa 2Cu 3O y superconductors

    Microsoft Academic Search

    R. Kita; S. Kato; T. Nakamura; O. Miura; R. Teranishi; S. Yasunaga; H. Kai; M. Mukaida; A. Ichinose; K. Matsumoto; M. S. Horii; Y. Yoshida

    2008-01-01

    We have investigated the stability of BaSnO3, BaZrO3, BaTiO3 and BaNb2O6 in the ErBa2Cu3Oy (Er123) matrix by mixing and sintering powders of Er123 and barium oxides. The degradation of Tc due to the addition of barium oxide was the lowest in the case of BaSnO3 (BSO). BSO-added samples exhibited a Tc above 90K even for 15vol% addition and an improved

  8. Magnetic properties of barium ferrite synthesized using a microemulsion mediated process

    NASA Astrophysics Data System (ADS)

    Pillai, Vinod; Kumar, Promod; Shah, D. O.

    1992-10-01

    Ultrafine barium ferrite particles have been synthesized using a microemulsion mediated process. The aqueous cores (typically 10-25 nm in size) of water-in-oil microemulsions were used as constrained microreactors for the precipitation of precursor carbonates of Ba 2+ and Fe 3+. These precursors (5-15 nm in size) when heated at 950°C, transformed to the hexagonal ferrite BaFe 12O 19 as confirmed by X-ray diffraction. This barium ferrite powder had an intrinsic coercivity of 5089 Oe and a saturation magnetization of 60.1 emu/g.

  9. [A cross-sectional survey on personality disorder in mental disorder outpatients in Shanghai.

    PubMed

    Zhang, Tian-Hong; Xiao, Ze-Ping; Wang, Lan-Lan; Dai, Yun-Fei; Zhang, Hai-Yin; Qiu, Jian-Yin; Tao, Ming-Yi; Wang, Zhen; Wang, Xiao; Yu, Jun-Han; Wu, Yan-Ru; Jiang, Wen-Hui

    2010-08-01

    OBJECTIVE: To study the prevalence and risk factors for personality disorder (PD) outpatients attending in for psychiatric and psychological counseling in Shanghai. METHODS: 3075 subjects were sampled by systematic sampling method from outpatients in psycho-counseling clinics and psychiatric clinics in Shanghai Mental Health Center. Based on DSM-IV criteria, personality disorders were assessed by both questionnaires (personality diagnostic questionnaire, PDQ-4+) and interviews (structured clinical interview for DSM-IV Axis II, SCID-II). Logistic regression analysis was performed to determine the significant independent contributor to PD. RESULTS: 71.3% of the outpatients were found having pathological personality by using questionnaire of self rating PD scale. 982 outpatients (31.9%) met criteria for at least one personality disorder by using structured clinical interview. Younger age (OR = 1.8, 95%CI: 1.5 - 2.1), single or divorced (OR = 1.6, 95%CI: 1.4 - 1.9), psychological counseling outpatients (OR = 1.2, 95%CI: 1.1 - 1.3), mood and outpatients with neurosis disorders (OR = 1.7, 95%CI: 1.4 - 2.0) were more frequently assigned as personality disorders. Data from logistic regression analysis showed that patients of tender age, not nurtured and raised by their parents, with introvert characters were related risk factors of PD. CONCLUSION: High prevalence rate of PD was found in this sample of Chinese outpatients, especially in those psychological counseling outpatients with mood or neurosis disorders. More attention should be paid to the recognition and intervention of PD in outpatients with mental disorders. PMID:21163000

  10. Social and clinical features as predictors of outcome in outpatient alcohol withdrawal

    Microsoft Academic Search

    Patrick G. O’Connor; Louis D. Gottlieb; Mark L. Kraus; Sam R. Segal; Ralph I. Horwitz

    1991-01-01

    Objective:To identify patient features — both social and clinical — that may be associated with treatment failure in outpatient alcohol\\u000a withdrawal.\\u000a \\u000a Design:A prospective observational cohort study of patients who underwent outpatient management of the alcohol withdrawal syndrome.\\u000a \\u000a \\u000a \\u000a Setting:Community hospital-based outpatient alcohol treatment program.\\u000a \\u000a \\u000a \\u000a Patients:The 179 patients who were eligible for and participated in a clinical trial of drug therapy for

  11. Outpatient percutaneous nephrolithotomy in a renal transplant patient: World’s first case

    PubMed Central

    McAlpine, Kristen; Leveridge, Michael J.; Beiko, Darren

    2015-01-01

    Percutaneous nephrolithotomy (PCNL) is an established safe and effective surgical treatment option for renal calculi in renal allografts. The advent of tubeless PCNL has led to reports of ambulatory or outpatient PCNL. This case report describes the successful outpatient management of a 49-year-old female with a symptomatic renal pelvic calculus in her transplanted kidney. Tubeless PCNL successfully removed the stone, free of complication, and the patient was discharged 2 hours and 17 minutes after the procedure in stable condition with minimal pain. This is, to the best of our knowledge, the first successful case of outpatient tubeless PCNL in a transplanted kidney.

  12. Outpatient percutaneous nephrolithotomy in a renal transplant patient: World's first case.

    PubMed

    McAlpine, Kristen; Leveridge, Michael J; Beiko, Darren

    2015-01-01

    Percutaneous nephrolithotomy (PCNL) is an established safe and effective surgical treatment option for renal calculi in renal allografts. The advent of tubeless PCNL has led to reports of ambulatory or outpatient PCNL. This case report describes the successful outpatient management of a 49-year-old female with a symptomatic renal pelvic calculus in her transplanted kidney. Tubeless PCNL successfully removed the stone, free of complication, and the patient was discharged 2 hours and 17 minutes after the procedure in stable condition with minimal pain. This is, to the best of our knowledge, the first successful case of outpatient tubeless PCNL in a transplanted kidney. PMID:26029308

  13. Readying for a healthcare revolution. Outpatient care: a textile rental service opportunity.

    PubMed

    Weller, S C

    1991-11-01

    Textile rental companies are poised on the edge of a boom in the healthcare marketplace. The detonator is outpatient care. Between 1984 and 1990, outpatient visits increased from almost 233 million to more than 310 million, or about 33 percent. The shift from traditional hospital care to outpatient or ambulatory service is creating a new market opportunity for textile rental services. Innovative medical services are cropping up in suburban malls and neighborhoods, and demand is high for high-quality linen supply or contract laundry services. PMID:10115521

  14. Health Services for Women in Outpatient Substance Abuse Treatment

    PubMed Central

    Campbell, Cynthia I; Alexander, Jeffrey A

    2005-01-01

    Objective To evaluate how a sample of outpatient substance abuse treatment units respond to organizational and environmental influences by adopting and implementing treatment services for women. Data Sources The National Drug Abuse Treatment System Survey from 1995 and 2000, a national survey of outpatient substance abuse treatment units. Study Design Health services for women are the dependent variables. The predictors include organizational and environmental factors that represent resource dependence and institutional pressures for the treatment unit. Logistic regression and Heckman selection models were used to test hypotheses. Data Collection Program directors and clinical supervisors at each treatment unit were interviewed by telephone in 1995 and 2000. Principal Findings Units that depended on specific funding for women's programs and that depended on government funds were more likely to adopt, but not necessarily implement, women's services. Methadone units and units that train more staff to work with women were more likely to adopt as well as implement women's services. Private not-for-profit units were more likely to adopt some services, while for-profit units were less so. However, in general, neither for-profit nor not-for-profit units significantly implemented services. There was evidence that the odds of adopting services were greater in 2000 than 1995 for two services, but were otherwise stable. Conclusions There is considerable variation in the adoption and implementation of women's services. In addition, not all adopted services were significantly implemented, which could reflect limited organizational resources and/or conflicting expectations. This also suggests that referral mechanisms to these services, and therefore access, may not be adequate. Government funds and specific funds for women's programs are important resources for the provision of these services. Women's services appear more available in methadone units, suggesting that regulation has been influential and that the recent methadone accreditation system should be evaluated. Staff training may be one strategy to encourage implementation of these services. For the most part, the adoption of services for women did not change between 1995 and 2000. PMID:15960691

  15. Regeneration of barium carbonate from barium sulphide in a pilot-scale bubbling column reactor and utilization for acid mine drainage.

    PubMed

    Mulopo, J; Zvimba, J N; Swanepoel, H; Bologo, L T; Maree, J

    2012-01-01

    Batch regeneration of barium carbonate (BaCO(3)) from barium sulphide (BaS) slurries by passing CO(2) gas into a pilot-scale bubbling column reactor under ambient conditions was used to assess the technical feasibility of BaCO(3) recovery in the Alkali Barium Calcium (ABC) desalination process and its use for sulphate removal from high sulphate Acid Mine Drainage (AMD). The effect of key process parameters, such as BaS slurry concentration and CO(2) flow rate on the carbonation, as well as the extent of sulphate removal from AMD using the recovered BaCO(3) were investigated. It was observed that the carbonation reaction rate for BaCO(3) regeneration in a bubbling column reactor significantly increased with increase in carbon dioxide (CO(2)) flow rate whereas the BaS slurry content within the range 5-10% slurry content did not significantly affect the carbonation rate. The CO(2) flow rate also had an impact on the BaCO(3) morphology. The BaCO(3) recovered from the pilot-scale bubbling column reactor demonstrated effective sulphate removal ability during AMD treatment compared with commercial BaCO(3). PMID:22233912

  16. Synthesis and colloidal properties of anisotropic hydrothermal barium titanate

    NASA Astrophysics Data System (ADS)

    Yosenick, Timothy James

    2005-11-01

    Nanoparticles of high dielectric constant materials, especially BaTiO3, are required to achieve decreased layer thickness in multilayer ceramic capacitors (MLCCs). Tabular metal nanoparticles can produce thin metal layers with low surface roughness via electrophoretic deposition (EPD). To achieve similar results with dielectric layers requires the synthesis and dispersion of tabular BaTiO3 nanoparticles. The goal of this study was to investigate the deposition of thin BaTiO3 layers using a colloidal process. The synthesis, interfacial chemistry and colloidal properties of hydrothermal BaTiO3 a model particle system, was investigated. After characterization of the material system particulates were deposited to form thin layers using EPD. In the current study, the synthesis of BaTiO3 has been investigated using a hydrothermal route. TEM and AFM analyses show that the synthesized particles are single crystal with a majority of the particle having a <111> zone axis and {111} large face. The particles have a median thickness of 5.8 +/- 3.1 nm and face diameter of 27.1 +/- 12.3 nm. Particle growth was likely controlled by the formation of {111} twins and the synthesis pH which stabilizes the {111} face during growth. With limited growth in the <111> direction, the particles developed a plate-like morphology. Physical property characterization shows the powder was suitable for further processing with high purity, low hydrothermal defect concentration, and controlled stoichiometry. TEM observations of thermally treated powders indicate that the particles begin to loose the plate-like morphology by 900 °C. The aqueous passivation, dispersion, and doping of nanoscale BaTiO 3 powders was investigated. Passivation BaTiO3 was achieved through the addition of oxalic acid. The oxalic acid selectively adsorbs onto the particle surface and forms a chemically stable 2-3 nm layer of barium oxalate. The negative surface charge of the oxalate effectively passivated the BaTiO3 providing a surface suitable for the use of a cationic dispersant, polyethylenimine (PEI). Rheological properties indicate the presence of an oxalate-PEI interaction which can be detrimental to dispersion. With a better understanding of the aqueous surface chemistry of BaTiO3 the surface chemistry was manipulated to control the adsorption of aqueous soluble complexes of Co, Nb, and Bi, three common dopants in the processing of BaTiO3 Surface charge, TEM, and EDS analysis showed that while in suspension the dopants selectively absorbed onto the particle surface forming an engineered coating. (Abstract shortened by UMI.)

  17. Characterization of Bismuth Ferrite and Barium Titanate Films

    NASA Astrophysics Data System (ADS)

    Kabelac, Jiri Vojtech

    The subject of this thesis is to examine properties of Bismuth Ferrite BiFeO3 (BFO) and Barium Titanate BaTiO3 (BTO) on different substrates, namely SrTiO3 (STO) and Si(001). Unfortunately, due to technical difficulties after certain time period, only a deposition on SrTiO3 was achieved. Both BiFeO3 and BaTiO3 are deposited in molecular beam epitaxy chamber (MBE). Characterization of the films consists of X-ray scans, Rutherford Backscattering, measuring an index of refraction and thickness by an optical method, and electronic measurements as capacitance and relative permittivity. Due to incompatibility of the deposited chromium with the perovskite films, the relative permittivity is in single digits and the other electronics measurements are not performed. The films are grown with different thickness and processing parameters as effusion and substrate temperatures. It is found that if the ratio of metals is kept close enough to 1.0, the BFO film grows epitaxially for a range of growth rates, from 0.371 to 4.644 Å min.-1, despite of the amount of oxygen. The lattice parameter in direction is bigger than 4.02 Å but except in one experiment. The optical methods reveal that there is a tendency the more epitaxial film, the higher the index of refraction and the smaller difference of the index of refraction measured by the polarizing spectrometer and by the Fresnel scan, which is almost always smaller. The index varies from 1.934 to 3.162. Another interesting fact is that the 2theta-omega scan should be done twice, with the sample rotating by 90°, to see whether the scan consist of the same number of peaks. The difference is probably because the film is not close enough to cubic and the X-ray scan is a 3-D problem. The BTO films are more consistent than BFO films. When it is possible to determine the chemical composition via RBS, then the film is either epitaxial or twinning. The lattice parameter is smaller than for bulk but almost identical to the lattice parameter of the STO substrate. The index of refraction is smaller than for bulk and without the imaginary part.

  18. [Biliary sludge: diagnosis and treatment at an outpatient's clinic].

    PubMed

    Manushkin, O N; Burdina, E G; Novozhenova, E V; Vasil'chenko, S A; Gurova, N Iu

    2013-01-01

    The purpose of the study--to develop a diagnostic and management tactics for patients with biliary sludge (BS) in an outpatient setting. The study included 115 patients who, according to the ultrasound revealed a BS. Own methodological approach used by ultrasound scan of the gall bladder and the interpretation of ultrasonographic BS types: Type 1 (suspension echo-positive particles) was set at 59.1%, type 2 (low level of mobile like putty echo-positive bile)--23.5%, 3 type (like putty bile in the form of mobile and/or fixed clots)--17.4%. For the treatment of BS used drugs ursodeoxycholic acid. The daily dosage depends upon the type BS. For the treatment of type 1 requires a minimum of 1 month, 2 types--not less than 3 months. Sludge was the most resistant type 3, which is the duration of treatment was 6-12 months or more. Allocation of risk factors forming the BS is the basis for the formation of risk groups and prevention activities (including pharmacotherapeutic). PMID:24933959

  19. The digital divide phenomenon in a hand surgery outpatient clinic.

    PubMed

    Parekh, Selene G; Sodha, Samir; McGuire, Kevin J; Bozentka, David J; Rozental, Tamara D; Beredjiklian, Pedro K

    2004-04-01

    The Internet has become an important source of medical information for patients. However, the availability of this resource for individuals in the lower socioeconomic groups is limited, a concept termed the digital divide. To evaluate this phenomenon, we conducted a survey study to quantify the accessibility and use of the Internet for obtaining medical information in an outpatient hand surgery clinic population. A 28-question survey was distributed to 207 patients concerning computer accessibility, Internet use for medical and nonmedical information, Internet trust and security, and patient economic demographics. After analysis of the data, we found individuals in households with higher incomes had a greater likelihood of owning computers than those in lower income brackets. As income increases, the time spent on the Internet also increases. Another statistically significant trend was that higher income patient households thought that Internet information was trustworthy, secure, and private compared with the lower income brackets. We concluded that clinical settings where the predominant patient population earns less than $18,000 may not benefit or use physician Internet-based services or information. The concept of the digital divide seems to be a real phenomenon in the clinical practice of orthopaedics. PMID:15123926

  20. The use of bispectral analysis to monitor outpatient sedation.

    PubMed Central

    Sandler, N. A.

    2000-01-01

    The bispectral (BIS) index has been used to interpret partial EEG recordings to predict the level of sedation and loss of consciousness in patients undergoing general anesthesia. The author has evaluated BIS technology in determining the level of sedation in patients undergoing outpatient deep sedation. These experiences are outlined in this review article. Initially, the correlation of the BIS index with traditional subjective patient evaluation using the Observer's Assessment of Alertness and Sedation (OAA/S) scale was performed in 25 subjects. In a second study, the recovery profile of 39 patients where the BIS was used to monitor sedation was compared with a control group where the monitor was not used. A strong positive relationship between the BIS and OAA/S readings was found in the initial subjects. From the recovery study, it appears that use of the BIS monitor may help titrate the level of sedation so that less drugs are used to maintain the desired level of sedation. A trend to earlier return of motor function in BIS-monitored patients was also demonstrated. BIS technology offers an objective, ordinal means of assessing the depth of sedation. This can be invaluable in comparing studies of techniques. The BIS index provides additional information to standard monitoring techniques that helps guide the administration of sedative-hypnotic agents. The trend to earlier return of motor function in BIS-monitored patients warrants further investigation. Images Figure 1 Figure 2 Figure 3 PMID:11432160

  1. Creating an outpatient center of excellence in CT.

    PubMed

    Itri, Jason N; Bakow, Eric; Woods, Jordan

    2014-12-01

    CT examinations represent a substantial portion of the workload for many radiology departments, and optimizing service delivery is a critical function to ensure customer satisfaction. This article describes how the Six Sigma methodology was used in the radiology department at a large academic hospital to improve the patient experience and increase CT capacity while reducing waste and improving staff satisfaction. The 5 distinct phases of Six Sigma are reviewed as they apply to our CT Center of Excellence project: define, measure, analyze, improve, and control. Process metrics used in this project include the percentage of outpatient CT exams started within 5 minutes of the scheduled appointment time, and the number of studies with protocols selected >48 hours before the CT exam is performed. Outcome metrics include monthly department expense per scan and CT Press Ganey "standard test and treatment" mean scores. An approach to developing interventions is described based on identifying critical sources of variation, ranking these by creating risk prioritization numbers, performing root cause analysis, and utilizing the failure mode and effects analysis tool to prioritize possible solutions. Finally, the key features of action plans and a control plan are reviewed. PMID:25467726

  2. Screening soldiers in outpatient care for mental health concerns.

    PubMed

    Gahm, Gregory A; Lucenko, Barbara A

    2008-01-01

    Significant recent effort has been directed toward screening and describing military populations in relation to deployment. Missing from these recent efforts is information describing screened mental health symptoms for the population of active duty military that are seen for mental health services. This article presents mental health screening data for 2,882 soldiers seeking services at a military facility outpatient behavioral health clinic. Screening positive for multiple symptom domains was common, with >60% of the sample screening positive for more than one clinical symptom domain. Post-traumatic stress disorder and depression were among the most commonly identified disorders, followed by alcohol abuse. This screening data, gathered using measures similar to those used in published deployment-related screening efforts, suggest differences that exist between the clinical population and the overall military population, providing some insights into the rates of clinical symptomatology within the military health system and providing a point of comparison for population- screening efforts. Clinical implications include the importance of provider awareness to the high rates of comorbidity across symptom domains. PMID:18251327

  3. Identifying Errors in Handwritten Outpatient Prescriptions in Oman

    PubMed Central

    Al Shahaibi, Nadiya MS; Al Said, Lamya S; Kini, TG; Chitme, HR

    2012-01-01

    To evaluate and analyze the handwritten outpatient prescriptions and associated error of omissions from four different hospitals in Oman. The study designed was an observational, retrospective and analysis of prescriptions was carried out by table and chart method. A total of 900 prescriptions were collected between April 2009 to July 2010. The type of error of omissions considered in this analysis includes all three important parts of prescriptions, i.e. superscription, inscription, and subscription. The most common type of superscription error of omission was found to be age (72.44%) and gender (32.66%). More than 46% of prescriptions were incomplete on direction for use, more than 22% of prescriptions were not having the information on dose, and more than 23% of prescriptions omitted the dosage forms of prescribed drugs. The date of dispensing of medications was omitted in all the prescriptions and more than 44% of prescriptions were missing the signature of dispenser. It was also found that more than 4% of prescriptions omitted the prescriber's signature and more than 18% of prescriptions omitted the date of prescription. We conclude from this study that the handwritten prescriptions were associated with significant frequency of minor and major prescription error of omissions. PMID:23492857

  4. Circumstances of sexual and physical victimization of black psychiatric outpatients.

    PubMed

    Jenkins, E J; Bell, C C; Taylor, J; Walker, L

    1989-03-01

    A sample of 54 adult psychiatric outpatients, previously identified as victims of sexual or physical assault, were interviewed regarding their childhood and adult victimization experiences. Patients were questioned about the nature of the assaults, their relationship to the perpetrator(s), the number of assaults suffered in each relationship, and whether the assault(s) occurred before or after the onset of their mental illness. Eighty percent of the sample had experienced major physical assault as an adult and 59% had experienced major physical assault as a child; 37% and 31%, respectively, reported major sexual assault as a child and as an adult. Women were more likely than men to report physical and sexual assault as an adult and sexual assault as a child. Childhood assault most often occurred before the onset of the patient's mental illness; whereas, adult sexual assault for women and physical and sexual assault for men was as likely to occur after the onset of the psychiatric disorder, suggesting an increased vulnerability to victimization for the adult mentally ill. PMID:2709427

  5. Plasma oxytocin and personality traits in psychiatric outpatients.

    PubMed

    Bendix, Marie; Uvnäs-Moberg, Kerstin; Petersson, Maria; Gustavsson, Petter; Svanborg, Pär; Åsberg, Marie; Jokinen, Jussi

    2015-07-01

    The oxytocin system is regarded as being of relevance for social interaction. In spite of this, very few studies have investigated the relationship between oxytocin and personality traits in clinical psychiatric populations. We assessed the relationship between personality traits and plasma oxytocin levels in a population of 101 medication-free psychiatric outpatients (men=37, women=64). We used the Karolinska Scale of Personality (KSP) and diagnostic and symptomatic testing. Plasma oxytocin levels were analysed with a specific radioimmunoassay at inclusion and after one month for testing of stability. Plasma oxytocin levels were stable over time and did not differ between patients with or without personality disorders, nor were they related to severity of depressive or anxiety symptoms. The KSP factors Impulsiveness and Negative Emotionality were significant independent predictors of plasma oxytocin. A subscale analysis of these personality factors showed significant positive correlations between baseline plasma oxytocin and the KSP subscales monotony avoidance and psychic anxiety. The significant association between the KSP factor Impulsiveness and oxytocin levels observed at baseline was observed also one month later in men. These findings suggest that personality traits such as Impulsiveness and Negative emotionality which are linked to social functioning in several psychiatric disorders seem to be associated with endogenous plasma oxytocin levels. These variations in oxytocin levels might have an impact on social sensitivity or social motivation with possible gender differences. PMID:25910979

  6. Tax aspects of outpatient drug transactions in nonprofit hospitals.

    PubMed

    McDaniel, P A; Fink, J L

    1985-02-01

    Tax issues related to sales of medications to outpatients by pharmacies in nonprofit hospitals are described. Hospitals are increasing their emphasis on development of ambulatory-care programs. Two aspects of the tax implications of such services are (1) whether revenue from sales of medications to ambulatory patients constitutes "unrelated business income" for the nonprofit hospital and thus is taxable and (2) whether engaging in dispensing of medications to ambulatory patients might jeopardize the tax-exempt status of the hospital. Various rulings from the Internal Revenue Service and court cases are reviewed. Sales of medications to members of the general public who are unrelated to the hospital are taxable. Sales of medications for the convenience of hospital patients, and irregular and intermittent sales to the public by a pharmacy that normally serves only "patients," are tax exempt. Sales of medications to the public probably do not jeopardize the tax-exempt status of a hospital so long as the primary purpose of the hospital is consistent with permissible tax-exempt purposes. PMID:3976684

  7. Implementing preventive services. Success and failure in an outpatient trial.

    PubMed

    Belcher, D W

    1990-12-01

    Physicians endorse prevention but provide only low levels of screening, health counseling, and immunization. Between 1981 and 1986, a randomized controlled trial was conducted at the Seattle (Wash) Veterans Affairs Medical Center to assess the effectiveness of the following three methods of delivery of preventive services: (1) a physician-oriented model that includes education and motivation, a chart flowsheet listing recommended activities, and periodic feedback about performance; (2) a patient education model in which patients were mailed an informative brochure advising them to ask physicians for preventive services as depicted in a patient-held pocket guide; and (3) a health promotion clinic that patients were invited to attend. A control group received their usual care. A total of 1224 male outpatients were enrolled in the trial. Baseline prevention rates for 12 age-specific prevention activities were below 25%. Neither the control group rates during the 5-year trial nor the rates for the two educational models, either singly or as a combined intervention, changed. Only the health promotion clinic model was effective, tripling prevention rates in its first year and sustaining these levels for all 5 years. It is difficult to change the clinic roles of experienced physicians and their long-term patients in a specialized multiclinic setting. Providing a separate health promotion clinic option is popular with patients, bypasses gatekeeper barriers, is reasonable in cost, and warrants wider application. PMID:2244769

  8. Carriage of Clostridium difficile in outpatients with irritable bowel syndrome.

    PubMed

    Clayton, Evelyn M; Rea, Mary C; Shanahan, Fergus; Quigley, Eamonn M M; Kiely, Barry; Ross, R Paul; Hill, Colin

    2012-09-01

    Irritable bowel syndrome (IBS) is a common, typically chronic and sometimes disabling gastrointestinal condition of uncertain aetiology. Recently, a variety of links to gastrointestinal infections have been described including the onset of IBS following exposure to enteric pathogens and an apparent predisposition to gastrointestinal infection. The prevalence of Clostridium difficile in a population of IBS outpatients (n?=?87) in the absence of established risk factors for the acquisition of C. difficile infection was examined. Overall, 5.7?% of patients (n?=?5) carried culturable C. difficile and 4.6?% (n?=?4) of isolates were toxigenic, belonging to toxinotype group 0, compared with 1.1?% (n?=?1) for the healthy control group (n?=?88). These isolates were members of toxigenic PCR ribotype groups 005 and 050 (IBS group) and 062 (control group) and were identified further as three individual strains by PFGE. Although no significant difference was observed between IBS patients and healthy volunteers, these findings support the concept that a subpopulation of IBS patients may be susceptible to gastrointestinal infection. PMID:22580916

  9. Management of Community-Acquired Pneumonia in Outpatients

    PubMed Central

    Siegel, David

    1985-01-01

    The medical records of 94 patients with pneumonia who were not admitted to hospital were reviewed and compared with those of 25 patients admitted to hospital for treatment of pneumonia. In all, 93% of the outpatients in whom follow-up could be obtained did not require modification of treatment. This included patients older than 50 years of age without important underlying illness, patients with leukocyte counts of more than 14,000 per ? and patients with multilobular pneumonia. A properly obtained Gram-stained sputum specimen showing a predominant organism was the best method for determining the antimicrobial regimen. If sputum cannot be obtained for Gram's staining, erythromycin should be the drug of choice for patients younger than 40 years and ampicillin or erythromycin should be given to those patients older than 40 years who are managed outside of the hospital. Patients who are critically ill with tachypnea or hypoxia and those with severe underlying illness and pneumonia should be admitted to hospital. PMID:3976218

  10. Outpatient pelvic-floor therapy in girls with daytime incontinence and dysfunctional voiding

    Microsoft Academic Search

    Piet Hoebeke; Johan Vande Walle; Marleen Theunis; Hilde De Paepe; W. Oosterlinck; Catherine Renson

    1996-01-01

    ObjectivesAnalysis of an experience in treating girls with dysfunctional voiding with an outpatient pelvicfloor therapy consisting of voiding and drinking schedule, pelvic-floor relaxation biofeedback, instructions on toilet behavior, and uroflowmetry.

  11. Physician Assistant and Advance Practice Nurse Care in Hospital Outpatient Departments: United States, 2008-2009

    MedlinePLUS

    ... November 2011 Physician Assistant and Advance Practice Nurse Care in Hospital Outpatient Departments: United States, 2008–2009 ... department visits Are PAs and APNs providing more care at visits to hospital OPDs? Between 2000–2001 ...

  12. The Skylab barium plasma injection experiments 2. Evidence for a double layer

    Microsoft Academic Search

    E. M. Wescott; H. C. Stenbaek-Nielsen; T. J. Hallinan; T. N. Davis; H. M. Peek

    1976-01-01

    Television observations of a barium plasma flux tube extending from near 4500 km to near 10,000 km during a magnetic substorm and dawn sector auroral display indicated several interesting anomalous events. Beyond 5500 km there was a rapid increase in brightness accompanied by flux tube splitting and diffusion, leaving behind a truncated single flux tube. From the orientation of the

  13. 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, must be packed in wooden boxes (4C1, 4C2, 4D, or 4F) or fiber drums (1G) with inner glass packagings not over 0.5 kg (1.1 pounds) capacity each. Packagings must have rubber stoppers wire tied for...

  14. Particulate barium at stations ALOHA and K2 during VERTIGO I & II

    E-print Network

    Buesseler, Ken

    Particulate barium at stations ALOHA and K2 during VERTIGO I & II F. Dehairs S. Jacquet D. Cardinal N. Savoye J. Bishop W. Baeyens M. Elskens K. Buesseler B. Van Mooy P. Boyd K. Casciotti ALOHA (2005 an oligotrophic (ALOHA, Hawaii) and a HNLC system (K2, NW Pacific) #12;State of the art: The non

  15. Performance and Stability of Barium Strontium Cobaltite Composite Cathodes for SOFC

    E-print Network

    1 P0601-Wang Performance and Stability of Barium Strontium Cobaltite Composite Cathodes for SOFC;2 Introduction Reduction of the operation temperature in an SOFC system has a vital importance in reducing cost electrolytes are still preferred by most SOFC developers. Many studies show that the cathode polarization

  16. Investigation of electron emitting barium-calcium aluminate fabrication process for impregnated microwave tube cathodes

    Microsoft Academic Search

    C. Higashi; N. B. de Lima; J. R. Matos; C. Giovedi; C. C. Motta

    2005-01-01

    In this paper it is reported the fabrication process of electron emitting barium-calcium aluminates used on impregnated cathodes which constitute high power vacuum microwave devices such as klystrons and TWTs (traveling wave tubes). The compound thermal behavior and the analysis of the formed phases during processing are evaluated, respectively, by means of thermal analysis and X-Ray diffraction. Results about the

  17. Synthesis of Single-Crystalline Perovskite Nanorods Composed of Barium Titanate and Strontium Titanate

    E-print Network

    Heller, Eric

    materials into a nanorod form.24 In a typical reaction, a 10-fold molar excess of 30% H2O2 (AldrichSynthesis of Single-Crystalline Perovskite Nanorods Composed of Barium Titanate and Strontium report the first solution-based synthesis of nanorods composed of ternary perovskite oxides. Transition

  18. Assessment of Barium Sulphate Formation and Inhibition at Surfaces with Synchrotron X-ray Diffraction (SXRD)

    SciTech Connect

    E Mavredaki; A Neville; K Sorbie

    2011-12-31

    The precipitation of barium sulphate from aqueous supersaturated solutions is a well-known problem in the oil industry often referred to as 'scaling'. The formation and growth of barite on surfaces during the oil extraction process can result in malfunctions within the oil facilities and serious damage to the equipment. The formation of barium sulphate at surfaces remains an important topic of research with the focus being on understanding the mechanisms of formation and means of control. In situ synchrotron X-ray diffraction (SXRD) was used to investigate the formation of barium sulphate on a stainless steel surface. The effect of Poly-phosphinocarboxylic acid (PPCA) and Diethylenetriamine-penta-methylenephosphonic acid (DETPMP) which are two commercial inhibitors for barium sulphate was examined. The in situ SXRD measurements allowed the identification of the crystal faces of the deposited barite in the absence and presence of the two inhibitors. The preferential effect of the inhibitors on some crystal planes is reported and the practical significance discussed.

  19. Zero focusing via competing nonlinearities in beta-barium-borate crystals.

    PubMed

    Krupa, K; Baronio, F; Conforti, M; Trillo, S; Tonello, A; Couderc, V

    2014-02-15

    We investigate nonlinear focusing behavior of light beams propagating in beta-barium-borate crystals under mismatched second-harmonic generation. We clearly identify experimentally multiple self-focusing and defocusing regions against the orientation angle and the condition where competing quadratic and cubic nonlinearities perfectly compensate each other (zero-focusing point). PMID:24562243

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

    E-print Network

    Suo, Zhigang

    charge-density capacitors. Thin films of BST are now being developed to replace silica­nitride laminatesThe effect of stress on the dielectric properties of barium strontium titanate thin films T. M) and M. Huang Mechanical and Aerospace Engineering Department and Materials Institute, Princeton

  1. Dielectric Properties and Conductivity of Iron Oxide-Barium Titanate Composites

    Microsoft Academic Search

    A. Kupreviciute; J. Banys; T. Ramoska; R. Sobiestianskas; F. M. M. Alawneh; N. Gharbi; D. C. Lupascu

    2011-01-01

    Sintered composites of iron oxide plus barium titanate in form of core-shell structures are investigated by impedance spectroscopy. The measurements were performed in the frequency and temperature ranges 20 Hz to 1 MHz and 150 K to 510 K, respectively. The composites exhibit strong low-frequency dispersion of electrical modulus and dielectric permittivity which is caused by different mechanisms of electron

  2. Applicability of barium fluoride and cadmium tungstate scintillators for well logging

    Microsoft Academic Search

    C. L. Melcher; R. A. Manente; J. S. Schweitzer

    1989-01-01

    Barium fluoride and cadmium tungstate have previously been used as radiation detectors in a number of applications such as high energy physics and tomographic imaging. The authors have studied the fundamental properties of these materials, with particular attention to properties relevant to nuclear well logging applications and their temperature dependence. Both detectors have properties that would seem to make them

  3. Role of polyelectrolyte dispersant in the settling behaviour of barium sulphate suspension

    Microsoft Academic Search

    M. Balastre; J. F. Argillier; C. Allain; A. Foissy

    2002-01-01

    Settling properties of barium sulphate suspensions have been systematically investigated as a function of particle volume fraction and polyelectrolyte dispersant concentration. The settling kinetics and the microstructure of sediments were examined by turbiscan measurement and scanning electron microscopy at low temperature (open-fractured samples). In the absence of dispersant, following the particle volume fraction, several types of behaviour were observed. The

  4. Tunable barium strontium titanate thin film capacitors for RF and microwave applications

    Microsoft Academic Search

    Ali Tombak; Jon-Paul Maria; Francisco Ayguavives; Zhang Jin; Gregory T. Stauf; Angus I. Kingon; Amir Mortazawi

    2002-01-01

    The measurement results for thin film barium strontium titanate (BST) based voltage tunable capacitors intended for RF applications are reported. At 9 V DC, BST capacitors fabricated using MOCVD (metalorganic chemical vapor deposition) method achieved 71% (3.4:1) tunability. The measured device quality factor (Q) for BST varactors is comparable with the device Q for commercially available varactor diodes of similar

  5. The influence of foreign ions on the crystal lattice of barium titanate

    Microsoft Academic Search

    G. H. Jonker; E. E. Havinga

    1982-01-01

    From investigations of phase diagrams of ternary oxides the lattice sites of foreign ions and compensating vacancies are established. Large trivalent ions occupy barium sites and are completely compensated by titanium vacancies. Small pentavalent ions occupy titanium sites and are mainly compensated by titanium vacancies. During these investigations a new compound was found, Ba La4 Ti4 O15 isomorphous with Ba5

  6. Kinetics of phenolic resol resin formation by HPLC. 2. Barium hydroxide

    Microsoft Academic Search

    G. Astarloa-Aierbe; J. M. Echeverría; M. D. Martin; I. Mondragon

    1998-01-01

    The evolution of phenolic resol resin catalysed by barium hydroxide under controlled temperature, formaldehyde to phenol ratio and water dilutability was quantitatively followed by liquid chromatography. Disappearance of phenol and formaldehyde and formation of addition products were quantitatively followed during synthesis. Higher molecular species formed by condensation reactions were diaryl compounds bonded by methylene bridges via para,para and ortho,para positions.

  7. Journal of Crystal Growth 271 (2004) 128133 Growth of strontium barium niobate

    E-print Network

    Osnabrück, Universität

    2004-01-01

    Journal of Crystal Growth 271 (2004) 128­133 Growth of strontium barium niobate: the liquidus. Czochralski method; A2. Growth from the melt; A2. Single crystal growth; B1. Niobates; B2. Ferroelectric;crystal growth at such a composition is greatly facilitated, practically all publications up to now deal

  8. External barium block of Shaker potassium channels: evidence for two binding sites

    Microsoft Academic Search

    R. S. Hurst; R. LATORRE; L. TORO; E. STEFANI

    1995-01-01

    External barium ions inhibit K + currents of Xenopus oocytes express- ing ShH4 A6-46, the non-inactivating deletion of the Shaker K + channel. At the macroscopic level, Ba 2+ block comprises both a fast and a slow component. The fast component is less sensitive to Ba 2+ (apparent dissociation constant at 0 mV, \\/~0), ~\\

  9. 62 FR 366 - Barium Compounds; Toxic Chemical Release Reporting; Community Right-to-Know

    Federal Register 2010, 2011, 2012, 2013, 2014

    1997-01-03

    ...mainly ascribed to the very low water solubility (2.4 milligrams per liter (mg...corresponding barium salt. The water solubility of the salt and, therewith, its ability...considerably less soluble, having water solubilities of 24 mg/L and 2.4 mg/L,...

  10. Distribution and source of barium in ground water at Cattaraugus Indian Reservation, southwestern New York

    USGS Publications Warehouse

    Moore, R.B.; Staubitz, W.W.

    1984-01-01

    High concentrations of dissolved barium have been found in ground water from bedrock wells on the Seneca Nation of Indians Reservation on Cattaraugus Creek in southwestern New York. Concentrations in 1982 were as high as 23.0 milligrams per liter , the highest found reported from any natural ground-water system in the world. The highest concentrations are in a bedrock aquifer and in small lenses of saturated gravel between bedrock and the overlying till. The bedrock aquifer is partly confined by silt, clay, and till. The high barium concentrations are attributed to dissolution of the mineral barite (BaSO4), which is present in the bedrock and possibly in overlying silt, clay, or till. The dissolution of barite seems to be controlled by action of sulfate-reducing bacteria, which alter the BaSO4 equilibrium by removing sulfate ions and permitting additional barite to dissolve. Ground water from the surficial, unconsolidated deposits and surface water in streams contain little or no barium. Because barium is chemically similar to calcium, it probably could be removed by cation exchange or treatments similar to those used for water softening. (USGS)

  11. On the magnetic properties of fine-milled barium and strontium ferrite

    Microsoft Academic Search

    HEKNING G. RICHTER; HERMANN E. DIETRICH

    1968-01-01

    The temperature dependence of the specific saturation magnetization of barium and strontium ferrite powders after milling in an attrition mill has been investigated at temperatures between -195°C and the Curie temperature of the ferrites. The experimental results show that the specific saturation magnetization decreases with increasing milling time and that a second, presumably soft-magnetic phase occurs during milling which vanishes

  12. An ultrafine barium ferrite powder of high coercivity from water-in-oil microemulsion

    NASA Astrophysics Data System (ADS)

    Liu, Xiangyuan; Wang, John; Gan, Leong-Ming; Ng, Sen-Choon; Ding, Jun

    1998-05-01

    An ultrafine barium ferrite powder of high coercivity and high saturation magnetization has been successfully prepared from an inverse water-in-oil microemulsion consisting of cyclohexane, NP5/NP9, and an aqueous solution of mixed ferric nitrate and barium nitrate. An ammonium hydroxide solution was used as the precipitant to obtain the hydroxide precursor of particle size in the range of 10-30 nm from the microemulsion. The resulting precursor is characterized using techniques such as thermogravimetric analysis (TGA), differential thermal analysis (DTA) and a FT-IR analyzer. It was then calcined at various temperatures ranging from 600 to 950°C in order to develop the designed barium ferrite phase. Phase development in the precursor at each calcination temperature was monitored using X-ray diffractometer and a 57Fe-Mössbauer spectrometer analyzer. The particle size and size distribution of the calcined powders were determined using light scattering technique, scanning electron microscope and a transmission electron microscope. A high purity barium ferrite was obtained when the precursor was calcined at 950°C for 4 h. It exhibits an intrinsic coercivity ( iHc) of 5639 Oe and a saturation magnetization ( Ms) of 69.7 emu/g, when characterized using a vibrating sample magnetometer (VSM).

  13. Laser Stabilization for Quantum Computing with Trapped Barium ions Corey Adams

    E-print Network

    Blinov, Boris

    Laser Stabilization for Quantum Computing with Trapped Barium ions Corey Adams University of Rochester (Dated: November 11, 2009) ABSTRACT The goal of this project was to stabilize a laser cooling system used to trap and cool Ba+ ions used for quantum computation research. The lasers, at 650 and 985

  14. WEAK-ACID ION EXCHANGE FOR REMOVING BARIUM, RADIUM, AND HARDNESS

    EPA Science Inventory

    Weak-acid resin in the hydrogen form was found to effectively remove barium, radium, and hardness, without increasing the sodium content of the product water. The maximum capacity of the weak-acid resin was about 2.3 times that of strong-acid resin, and much less spent regenerant...

  15. The accelerated intake: a method for increasing initial attendance to outpatient cocaine treatment.

    PubMed Central

    Festinger, D S; Lamb, R J; Kirby, K C; Marlowe, D B

    1996-01-01

    We examined whether offering an accelerated (same-day) versus a standard (1- to 7-day delay) intake appointment increased initial attendance at an outpatient cocaine treatment program. Significantly more of the subjects who were offered an accelerated intake (59%) attended than those who were given a standard intake (33%), chi 2 (2, N = 78) = 4.198, p < .05. The accelerated intake procedure appears to be useful for enhancing enrollment in outpatient addiction treatment. PMID:8810062

  16. Outpatients Flow Management and Ophthalmic Electronic Medical Records System in University Hospital Using Yahgee Document View

    Microsoft Academic Search

    Toshihiko Matsuo; Akira Gochi; Tsuyoshi Hirakawa; Tadashi Ito; Yoshihisa Kohno

    2010-01-01

    General electronic medical records systems remain insufficient for ophthalmology outpatient clinics from the viewpoint of\\u000a dealing with many ophthalmic examinations and images in a large number of patients. Filing systems for documents and images\\u000a by Yahgee Document View (Yahgee, Inc.) were introduced on the platform of general electronic medical records system (Fujitsu,\\u000a Inc.). Outpatients flow management system and electronic medical

  17. Prediction of successful voiding immediately after outpatient mid-urethral sling

    Microsoft Academic Search

    Kenneth I. Barron; Judith A. Savageau; Stephen B. Young; Lisa C. Labin; Abraham N. Morse

    2006-01-01

    We set out to identify predictors of successful voiding immediately after outpatient mid-urethral sling. The charts of 126 patients who underwent an outpatient mid-urethral sling procedure were identified. Using discharge without a urinary catheter as the dependent variable, logistic regression analysis modeled the relationship of independent variables including demographic, preoperative urodynamic, and perioperative variables. Sixty-one percent of the patients passed

  18. Outpatient versus inpatient uterine polyp treatment for abnormal uterine bleeding: randomised controlled non-inferiority study

    PubMed Central

    Cooper, Natalie A M; Middleton, Lee; Diwakar, Lavanya; Smith, Paul; Denny, Elaine; Roberts, Tracy; Stobert, Lynda; Jowett, Susan; Daniels, Jane

    2015-01-01

    Objective To compare the effectiveness and acceptability of outpatient polypectomy with inpatient polypectomy. Design Pragmatic multicentre randomised controlled non-inferiority study. Setting Outpatient hysteroscopy clinics in 31 UK National Health Service hospitals. Participants 507 women who attended as outpatients for diagnostic hysteroscopy because of abnormal uterine bleeding and were found to have uterine polyps. Interventions Participants were randomly assigned to either outpatient uterine polypectomy under local anaesthetic or inpatient uterine polypectomy under general anaesthesia. Data were collected on women’s self reported bleeding symptoms at baseline and at 6, 12, and 24 months. Data were also collected on pain and acceptability of the procedure at the time of polypectomy. Main outcome measures The primary outcome was successful treatment, determined by the women’s assessment of bleeding at six months, with a prespecified non-inferiority margin of 25%. Secondary outcomes included generic (EQ-5D) and disease specific (menorrhagia multi-attribute scale) quality of life, and feasibility and acceptability of the procedure. Results 73% (166/228) of women in the outpatient group and 80% (168/211) in the inpatient group reported successful treatment at six months (intention to treat relative risk 0.91, 95% confidence interval 0.82 to 1.02; per protocol relative risk 0.92, 0.82 to 1.02). Failure to remove polyps was higher (19% v 7%; relative risk 2.5, 1.5 to 4.1) and acceptability of the procedure was lower (83% v 92%; 0.90, 0.84 to 0.97) in the outpatient group Quality of life did not differ significantly between the groups. Four uterine perforations, one of which necessitated bowel resection, all occurred in the inpatient group. Conclusions Outpatient polypectomy was non-inferior to inpatient polypectomy. Failure to remove a uterine polyp was, however, more likely with outpatient polypectomy and acceptability of the procedure was slightly lower. Trial registration International Clinical Trials Registry 65868569. PMID:25801579

  19. SALT reveals the barium central star of the planetary nebula Hen 2-39

    NASA Astrophysics Data System (ADS)

    Miszalski, B.; Boffin, H. M. J.; Jones, D.; Karakas, A. I.; Köppen, J.; Tyndall, A. A.; Mohamed, S. S.; Rodríguez-Gil, P.; Santander-García, M.

    2013-12-01

    Classical barium stars are binary systems which consist of a late-type giant enriched in carbon and slow neutron capture (s-process) elements and an evolved white dwarf (WD) that is invisible at optical wavelengths. The youngest observed barium stars are surrounded by planetary nebulae (PNe), ejected soon after the wind accretion of polluted material when the WD was in its preceding asymptotic giant branch (AGB) phase. Such systems are rare but powerful laboratories for studying AGB nucleosynthesis as we can measure the chemical abundances of both the polluted star and the nebula ejected by the polluter. Here, we present evidence for a barium star in the PN Hen 2-39 (PN G283.8-04.2) as one of only a few known systems. The polluted giant is very similar to that found in WeBo 1 (PN G135.6+01.0). It is a cool (Teff = 4250 ± 150 K) giant enhanced in carbon ([C/H] = 0.42 ± 0.02 dex) and barium ([Ba/Fe] = 1.50 ± 0.25 dex). A spectral type of C-R3 C24 nominally places Hen 2-39 amongst the peculiar early R-type carbon stars; however, the barium enhancement and likely binary status mean that it is more likely to be a barium star with similar properties, rather than a true member of this class. An AGB star model of initial mass 1.8 M? and a relatively large carbon pocket size can reproduce the observed abundances well, provided mass is transferred in a highly conservative way from the AGB star to the polluted star (e.g. wind Roche lobe overflow). It also shows signs of chromospheric activity and photometric variability with a possible rotation period of ˜5.5 d likely induced by wind accretion. The nebula exhibits an apparent ring morphology in keeping with the other PNe around barium stars (WeBo 1 and A 70) and shows a high degree of ionization implying the presence of an invisible hot pre-WD companion that will require confirmation with UV observations. In contrast to A 70, the nebular chemical abundance pattern is consistent with non-Type I PNe, in keeping with the trend found from nebular s-process studies that non-Type I PNe are more likely to be s-process enhanced.

  20. [Outpatient specialist medical care: what is possible, what will come?].

    PubMed

    Tschuschke, C; Uhthoff, H

    2013-08-01

    The guidelines on outpatient specialist medical treatment (ASV) according to § 116b of the Social Act were published by the Federal Joint Committee on 21 March 2013. The guidelines regulate the framework conditions for the new area of healthcare and the requirements for potential participants. The ASV guidelines are designed to ultimately bridge the sectorial borders for the treatment of rare diseases and those with unusual courses. In the past the reforms in § 116b have not fulfilled the criteria expected by the legislation. The reforms have already led to an increase in the costs for medical services by a factor of 50 within 6 years. The spectrum of diseases to be treated has remained practically unchanged. The healthcare providers must now fulfil a catalogue of prerequisites which will be formulated by the Federal Joint Committee for each entity in the still to be provided annexes to the guidelines in order to be approved on notification by the extended National Committee. The guidelines are based on the prototype further education regulations according to the old law. An important detail is the obligatory formation of cooperation and teams for all participants outside the traditional sectorial limits. Each partner must perform the duties at least 1 day in the week at the site of the team leader. Specific and organizational requirements, extent of treatment and lower limits will be regulated by the still to be formulated annexes. Costing and business effectiveness will be tested by the medical services. No patient has yet been treated under the ASV but the winner is already known: bureaucracy. PMID:23900480