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1

Routine colonic lavage is unnecessary for double-contrast barium enema in outpatients  

PubMed Central

Four different cleansing regimens were assessed in a prospective survey of 435 patients referred for barium enema. A regimen using simple dietary instructions and laxatives is as effective as a preliminary cleansing enema. It is suggested that routine cleansing enemas in outpatients represent an unnecessary and uncomfortable ritual that might usefully be abandoned.

De Lacey, Gerald; Benson, Mark; Wilkins, Robert; Spencer, John; Cramer, Benvon

1982-01-01

2

Barium enema (image)  

MedlinePLUS

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

3

Diagnostic yield from barium enemas: a study among patients referred by general practitioners and hospital outpatient departments.  

PubMed Central

Although the double contrast barium enema is the standard radiological examination of the colon, it is not universally available to patients referred by their general practitioners. A retrospective survey of all double contrast barium enemas carried out over a two year period in one health district was undertaken to determine the diagnostic yield of pathological findings for patients referred by general practitioners and hospital outpatient departments and for patients who had rigid sigmoidoscopy prior to the enema and those who did not. A total of 530 patients were studied. The diagnostic yield for the hospital outpatients was 41.6% and in the general practitioner group 35.6%. In the patients who had rigid sigmoidoscopy the yield was 42.7% compared with 32.6% in those who had no prior sigmoidoscopy. It is concluded that the withdrawal of direct access for barium enemas to general practitioner patients in this district because of a low diagnostic yield cannot be justified. The lower diagnostic yield in the patients who did not have sigmoidoscopy supports the policy of requiring this examination prior to all barium enemas.

Wafula, J M

1992-01-01

4

Bacteremia during barium enema study.  

PubMed

The occurrence of bacteremia was studied in patients undergoing barium enema. Blood cultures were done on 34 patients before, during, and after the procedure using two schedules. Cultures were obtained once during the procedure in the first schedule and four times in the second. None of the cultures were positive by the first schedule, while 23% of patients studied by the second schedule had one or more positive cultures. Organisms isolated were anaerobes. The bacteremia was transient and self-limited, without serious clinical sequelae. The incidence of bacteremia during barium enema examination was statistically indistinguishable from bacteremia previously reported during colonscopy. It is concluded that antibiotic prophylaxis is not indicated in most patients undergoing colonic diagnostic procedures. Prophylaxis in selected high-risk patients requires further study. PMID:416682

Butt, J; Hentges, D; Pelican, G; Henstorf, H; Haag, T; Rolfe, R; Hutcheson, D

1978-04-01

5

Lower GI Series (Barium Enema)  

MedlinePLUS

... because the large intestine is filled with barium liquid. The barium liquid coats the lining of the large intestine and ... bowel prep instructions. Generally, patients follow a clear liquid diet for 1 to 3 days before the ...

6

The use of antispasmodic drugs during barium enemas.  

PubMed

In 1958, Welin recommended the routine use of atropine before a barium enema to reduce mucus secretion and make the examination more comfortable. Currently, many radiologists believe that smooth-muscle spasmolysis is a useful adjunct during a barium enema and use such a spasmolytic agent. One survey found that spasmolytic agents were administered more frequently in 1987 than in 1976. The use of glucagon had increased 20% between 1976 and 1987. Among 34 foreign institutions responding to the survey, 37% used glucagon and 45% used scopolamine butylbromide (Buscopan). Nevertheless, it is still controversial whether spasmolytic agents play a significant role in the performance and interpretation of a barium enema. Some radiologists routinely use a spasmolytic agent; others do so only selectively. PMID:8191992

Skucas, J

1994-06-01

7

21 CFR 201.304 - Tannic acid and barium enema preparations.  

Code of Federal Regulations, 2010 CFR

...2010-04-01 false Tannic acid and barium enema preparations. 201.304 Section...Products § 201.304 Tannic acid and barium enema preparations. (a) It has...practice for tannic acid to be added to barium enemas to improve X-ray...

2010-04-01

8

21 CFR 201.304 - Tannic acid and barium enema preparations.  

Code of Federal Regulations, 2013 CFR

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

2013-04-01

9

21 CFR 201.304 - Tannic acid and barium enema preparations.  

Code of Federal Regulations, 2010 CFR

...2009-04-01 false Tannic acid and barium enema preparations. 201.304 Section...Products § 201.304 Tannic acid and barium enema preparations. (a) It has...practice for tannic acid to be added to barium enemas to improve X-ray...

2009-04-01

10

Predictive value of a diagnosis of colonic polyp on the double-contrast barium enema  

Microsoft Academic Search

The positive predictive value of a diagnosis of colonic polyp on the double-contrast barium enema was determined by analyzing 160 polypoid lesions reported in 105 patients. Of the 160 polyps, 139 were confirmed by endoscopy, surgery, or repeat barium enema for a positive predictive value of 87%. Twenty-one lesions were not confirmed despite repeat endoscopy, repeat barium enema, review of

David J. Ott; Deborah S. Ablin; David W. Gelfand; Isadore Meschan

1983-01-01

11

Prospective comparison of double contrast barium enema plus flexible sigmoidoscopy v colonoscopy in rectal bleeding: barium enema v colonoscopy in rectal bleeding.  

PubMed Central

Rectal bleeding often heralds serious colonic disease. The literature suggests that colonoscopy is superior to barium enema plus sigmoidoscopy, although no good comparative studies exist. Seventy one patients with overt rectal bleeding had prospectively flexible sigmoidoscopy, double contrast barium enema and colonoscopy completed independently. Against the gold standard, the sensitivity and specificity of colonoscopy were 0.69 and 0.78 respectively for a spectrum of colonic lesions, while for combined flexible sigmoidoscopy and double contrast barium enema these values were 0.80 and 0.56, respectively. When assessing adenoma or carcinoma, colonoscopy was more sensitive at 0.82 v 0.73, while flexible sigmoidoscopy plus double contrast barium enema was superior for detecting diverticular disease. The positive predictive value for colonoscopy was 0.87 against 0.81 for flexible sigmoidoscopy and double contrast barium enema. This study confirms that colonoscopy should be a first line investigation in subjects likely to require biopsy or therapeutic intervention.

Irvine, E J; O'Connor, J; Frost, R A; Shorvon, P; Somers, S; Stevenson, G W; Hunt, R H

1988-01-01

12

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

Microsoft Academic Search

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

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

1997-01-01

13

Colonoscopy without premedication versus barium enema: a comparison of patient discomfort  

Microsoft Academic Search

Background: Colonoscopy is considered a painful procedure requiring routine intravenous sedation. We investigated whether unsedated colonoscopy causes more discomfort than barium enema. Methods: Procedure-related discomfort was determined in 100 consecutive patients undergoing colonoscopy without premedication and in an equal number of patients referred for sigmoidoscopy and barium enema. All patients underwent such examinations for the first time and had no

Volker F. Eckardt; Gerd Kanzler; Dieter Willems; Alexander J. Eckardt; Gudrun Bernhard

1996-01-01

14

Can barium enema indicate when colonoscopy will be difficult?  

PubMed

The barium enemas of 48 consecutive patients, who were technically difficult to intubate at colonoscopy, were compared to those of 46 patients who were not. Measurements were taken of colonic length and mobility, and an assessment made of diverticular disease. Rectosigmoid length (mean difficult group = 61 cm, mean control = 54 cm, P = 0.01) and total colonic length (mean difficult group = 157 cm, mean control = 140 cm, P < 0.0001) were greater in the difficult colonoscopy group as were transverse colon mobility (mean difficult group = 10 cm, mean control = 7 cm, P = 0.003) or redundancy (transverse colon reaching the true pelvis on the erect film); 65% difficult group vs 17% control group, P < 0.0001. The presence of moderate or severe diverticular disease was also greater in the difficult (23%) compared to the control (4%) group, P = 0.02. When available, assessment of a previous barium enema is a useful guide to probable technical difficulty of colonscopy. It may allow appropriate allocation of potentially difficult cases to specialist endoscopy lists. PMID:7743720

Saunders, B P; Halligan, S; Jobling, C; Fukumoto, M; Moussa, M E; Williams, C B; Bartram, C I

1995-05-01

15

Assessment of patient exposure for barium enema examinations.  

PubMed

Methods are described for the assessment of patient exposure during clinical fluoroscopic procedures. Values of the roentgen-area-product (RAP) and their distribution throughout the examination are presented for both single-contrast and double-contrast barium enema studies. The double-contrast procedure was measured to give 50% more radiation to the patient than the single-contrast procedure when the same size optical aperture is used between the intensifier and TV pick-up tube. However, it was possible to decrease the fluoroscopic RAP value by over a factor of two for the double-contrast procedure without an adverse clinical effect by increasing the area of the aperture diaphragm. PMID:6642942

Bednarek, D R; Rudin, S; Wong, R

16

Self-administered disposable micro-enemas before outpatient sigmoidoscopy.  

PubMed Central

Many colorectal carcinomas can be diagnosed by rigid sigmoidoscopy. One important limiting factor in the usefulness of this investigation is the presence of faeces; another is inability to negotiate the recto-sigmoid bend. 101 patients (47 men) were sent a Microlax enema with instruction to use it before their first attendance in the outpatient department. The grade of preparation [on a scale of 0 (empty rectum) to 3, with grades 0 and 1 providing an adequate view], height achieved with the sigmoidoscope and whether or not the extent of the examination was limited by faeces were recorded. These data were compared with results in 78 patients (38 men) who did not receive any special preparation. There were no serious difficulties with self-administration. An adequate view was obtained in 89 (88%) of those who had received an enema and in 41 (53%) of those who were unprepared (P < 0.001, chi 2 test). The height achieved and the percentage of patients in whom the sigmoidoscopy was not limited by faeces were also significantly increased. The mailing of micro-enemas to patients who are likely to need sigmoidoscopy is a cheap measure that increases diagnostic yield and saves reattendances.

Marsh, S K; Huddy, S P

1996-01-01

17

Primary lymphoma of the colon and rectum: CT and barium enema correlation  

Microsoft Academic Search

This paper presents the computed tomographic (CT) and barium enema (BE) findings in seven patients with proven primary lymphoma of the colon and rectum. CT and BE examination are complimentary studies in the evaluation of primary lymphoma of the colorectum, and certain relevant findings may be missed when radiographic evaluation does not include both modalities. Both CT and barium studies

Susan H. Wyatt; Elliot K. Fishman; Bronwyn Jones

1993-01-01

18

DETECTION OF SMALL LESIONS OF THE LARGE BOWEL--Barium Enema Versus Double Contrast  

PubMed Central

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

Robinson, J. Maurice

1954-01-01

19

Compensation filtration for decubitus radiography during double-contrast barium enema examinations  

SciTech Connect

Lateral decubitus images obtained during double-contrast barium enema examinations may be difficult to interpret because of the large difference in density between the various parts of the radiographs. Several types of filters are described which can be used to rectify this problem, thus improving the quality of the decubitus radiographs and achieving a slight reduction in radiation exposure.

Feczko, P.J.; Haggar, A.M.; Rauch, P.L.; Halpert, R.D.; Simms, S.M.

1983-12-01

20

Perforation of the colon and rectum during administration of barium enema  

Microsoft Academic Search

ConclusionsPerforation of the colon or rectum, with an attendant high mortality rate, is apt to occur during administration of barium\\u000a enema in patients in whom the bowel has been weakened by disease or trauma. This accident is probably more common than reports\\u000a in medical literature would indicate.\\u000a \\u000a Five cases have been presented in which either intraperitoneal or extraperitoneal rupture of

Lewis Grodsky

1959-01-01

21

Evaluation of the barium-enema examination and colonoscopy in diagnosis of colonic cancer  

Microsoft Academic Search

Summary and ConclusionsThe diagnostic value of colonoscopy was investigated in 123 patients with certain or questionable cancer of the colon as demonstrated\\u000a by an ordinary barium-enema examination. The diagnosis was revised by laparotomy or clinical follow-up studied in cases of\\u000a patients having no operation. The following conclusions were deduced: 1) The number of unnecessary laparotomies may be reduced\\u000a by doing

Ole Kronborg; Asser stergaard

1975-01-01

22

Non-laxative CT colonography with barium-based faecal tagging: is additional phosphate enema beneficial and well tolerated?  

PubMed Central

Objective The purpose of this study was to investigate the efficacy and tolerance of an additional phosphate enema prior to non-laxative CT colonography (CTC). Methods 71 patients (mean age 80 years, 28 male, 43 female) underwent non-laxative CTC following 4 oral doses of diluted 2% w/w barium sulphate. Patients were invited to self-administer a phosphate enema 2 h before CTC. An experienced observer graded the volume of retained stool (1 (nil) to 4 (>75% bowel circumference coated)), retained fluid ((1 (nil) to 4 (>50% circumference obscured)), retained stool tagging quality (1 (untagged) to 5 (?75% to 100%) tagged) and confidence a polyp ?6 mm could be excluded (yes/no) for each of six colonic segments. Tolerance of the enema was assessed via questionnaire. Data were analysed between those using and not using the enema by MannWhitney and Fisher's exact test. 18/71 patients declined the enema. Results There was no reduction in residual stool volume with enema use compared with non-use either overall (mean score 2.6 vs 2.7, p = 0.76) or in the left colon (mean 2.3 vs 2.4, p = 0.47). Overall tagging quality was no different (mean score 4.4 vs 4.3, p = 0.43). There was significantly more retained left colonic fluid post enema (mean score 1.9 vs 1.1, p<0.0001), and diagnostic confidence in excluding polyps was significantly reduced (exclusion not possible in 35% segments vs 21% without enema, p = 0.006). Of 53 patients, 30 (56%) found the enema straightforward to use, but 4 (8%) found it unpleasant. Conclusion Phosphate enema use prior to non-laxative CTC leads to greater retained fluid, reducing diagnostic confidence, and is not recommended.

Davis, W; Nisbet, P; Hare, C; Cooke, P; Taylor, S A

2011-01-01

23

Barium Granuloma of the Rectum: An Uncommon Complication of Barium Enema  

PubMed Central

Barium sulfate granuloma of the rectum may develop when this contrast material is forced through a discontinuity in the rectal mucosa. The ensuing mass may be confused with carcinoma. Preoperative biopsy and attention to plain films will prevent unnecessary inappropriate surgery. ImagesFig. 1.Fig. 2.Fig. 3a.Fig. 3b.

Lewis, Joseph W.; Kerstein, Morris D.; Koss, Neal

1975-01-01

24

Colon imaging in radiology departments in 2008: goodbye to the routine double contrast barium enema.  

PubMed

We radiologists are free to choose DCBE or CTC when patients are referred to us for colonic examination. The studies reported during 2007 have confirmed that CTC is more accurate, preferred by patients, with a shorter room time, fewer complications, lower radiation exposure, and reveals therapeutically significant extracolonic lesions in 5% to 10% of cases, so that it is beginning to seem rather irresponsible to continue to offer routine DCBE examinations. In older patients the yield of extracolonic abnormalities is even greater, with 505 abnormalities found in 268 of 400 consecutive patients aged 70 years and older, including 23 extracolonic malignancies. More than 90 Canadian radiology departments have bought the necessary carbon dioxide insufflators, so there is clearly great interest. Many training workshops are available in Europe and the United States to help radiologists become familiar and skilled with CTC, and it will be helpful to have more local ones within Canada over the next few years. Some studies have shown that CTC can be done with poorer results than those I have quoted, and this is often in the early experience of departments. As large numbers of radiologists train, there is the potential for hundreds of errors while experience is being gained. We have the advantage over endoscopists, in that we can train on known data sets. Several institutions have put together sets of 50 complete CTC cases, mixed abnormal and normal, and these are an ideal training tool so that one can make one's mistakes in training rather than on live patients. One such data set is even available with one of the recent textbooks. Would it be useful for the CAR, or provincial radiology associations, to purchase several of these sets, and make them available for an appropriate fee to radiologists who are learning? CTC technologists will necessarily have a role on the workstations, including doing the primary read. Additional budgets will be needed for CTC with a diminution in fluoroscopy budgets as barium enemas are discontinued. Some larger hospitals may reserve a scanner purely for alimentary tract work- perhaps CTC and CT enterography. The essential administrative breakthrough will be to establish either a technical fee for CTC or an appropriate increase in the hospital global budget to allow high-volume CTC to flourish Nationally standards and guidelines will be needed, and if we are to play a major role in screening, where high standards have to be evaluated and maintained, we may need nationally organized individual audit feedback, much as we have with breast screening. Should the known data sets have a role in training for radiologists embarking on screening or in demonstrating continued competence? It is an exciting time once again for radiologists interested in colonic disease. We now know that CTC can be done very well. The challenges are going to be achieving consistency and deciding which of the 6 areas of opportunity described above are our priorities. PMID:19069601

Stevenson, Giles

2008-10-01

25

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

Microsoft Academic Search

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

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

26

Detection of rectal and rectosigmoid lesions by double-contrast barium enema examination and sigmoidoscopy. Accuracy of technique and efficacy of standard overhead views.  

PubMed

The double-contrast barium-enema examination (DC-BE) and endoscopy were compared in 100 patients (126 lesions) to determine the accuracy of each method and assess the efficacy of standard overhead views in detecting rectal and rectosigmoid masses. Seven lesions were missed with DB-BE (accurate rate, 95%) and 20 with endoscopy (accuracy rate, 84%). Lateral and angled rectum views were positive in 74% and 94%, respectively; combining these with supine, prone, and left posterior oblique views, 95% of 121 lesions were detected on at least 2 radiographs. Fifteen of 41 lesions (37%) were missed with the rigid sigmoidoscope, but only 5 of 85 (6%) with the flexible sigmoidoscope. The authors conclude that suspected rectal or rectosigmoid tumors can be diagnosed accurately with only 5 projections, rather than the 11 often employed for the entire colon, and that the flexible sigmoidoscope should be used routinely instead of the rigid sigmoidoscope. PMID:7053548

Thoeni, R F; Petras, A

1982-01-01

27

Barium appendicitis 1month after a barium meal.  

PubMed

Abstract Because barium sulfate (BaSO(4)) is not harmful to the mucosa, it is widely used for gastrointestinal imaging. Barium appendicitis is a very rare complication of barium meals and barium enema. We report a case of acute appendicitis associated with retained appendiceal barium. A 47-year-old man presented with right lower abdominal pain after upper gastrointestinal imaging was performed using barium 1month earlier. The abdominal plain roentgenogram showed an area of retained barium in the right lower quadrant. Multiplanar reconstruction of computed tomography scans showed barium retention in the appendix. Emergency appendectomy was performed. A cross section of the specimen revealed the barium mass. Barium-associated appendicitis is a very rare clinical entity but we should be cautious of this uncommon disease when we encounter barium deposits in the appendix after barium examination. This report is significant because barium was identified both macroscopically and microscopically. PMID:23294068

Urade, Masaaki; Shinbo, Toshihumi

28

Barium Appendicitis 1 Month After a Barium Meal  

PubMed Central

Because barium sulfate (BaSO4) is not harmful to the mucosa, it is widely used for gastrointestinal imaging. Barium appendicitis is a very rare complication of barium meals and barium enema. We report a case of acute appendicitis associated with retained appendiceal barium. A 47-year-old man presented with right lower abdominal pain after upper gastrointestinal imaging was performed using barium 1month earlier. The abdominal plain roentgenogram showed an area of retained barium in the right lower quadrant. Multiplanar reconstruction of computed tomography scans showed barium retention in the appendix. Emergency appendectomy was performed. A cross section of the specimen revealed the barium mass. Barium-associated appendicitis is a very rare clinical entity but we should be cautious of this uncommon disease when we encounter barium deposits in the appendix after barium examination. This report is significant because barium was identified both macroscopically and microscopically.

Urade, Masaaki; Shinbo, Toshihumi

2012-01-01

29

Transabdominal Ultrasonography of the Small Bowel After Oral Administration of a Non-absorbable Anechoic Solution: Comparison with Barium Enteroclysis  

Microsoft Academic Search

AIM: The aim of this study was to determine if oral administration of a non-absorbable anechoic solution conveys any benefit during abdominal ultrasound (US), with special reference to its accuracy.MATERIALS AND METHODS: Fifty-three adult out-patients scheduled for small bowel barium enema (SBE) were included. The day before SBE all patients underwent abdominal US before and after oral administration of an

Giuseppe Cittadini; Veronica Giasotto; Giacomo Garlaschi; Enzo de Cicco; Alessandra Gallo; Giorgio Cittadini

2001-01-01

30

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

SciTech Connect

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.

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

1986-02-01

31

A double-blind randomised, placebo-controlled trial evaluating the influence of oral long-acting muscle relaxant (Mebeverine MR), and insufflation with CO 2 on pain associated with barium enema  

Microsoft Academic Search

Previous investigators have shown significant benefit using CO2 for bowel insufflation. Others have suggested that the long-acting smooth muscle relaxant, Mebeverine, may be of benefit.\\u000a We subjected this to a randomised double-blind trial. A total of 181 outpatients were randomised to receive either Mebeverine\\u000a or placebo as pre-medication, and either air or CO2 for bowel insufflation, thus creating four treatment

A. S. Lowe; A. H. Chapman; D. Wilson; A. G. Culpan

2003-01-01

32

The malone antegrade continence enema  

Microsoft Academic Search

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

D. M Griffiths; P. S Malone

1995-01-01

33

Contrast enema diagnosis of necrotizing enterocolitis.  

PubMed

Contrast enema was performed in a select group of 126 neonates with ambiguous diagnosis of necrotizing enterocolitis (NEC). Enema findings were compared with that on plain abdominal radiographs (AXR) and the clinical outcome. Thirty-one of the 34 patients with a discharge diagnosis of NEC were interpreted to have a positive contrast enema, and 91 of the 92 patients without a discharge diagnosis of NEC were interpreted to have a negative contrast enema. The AXR was interpreted as positive in 57 patients and as negative or indeterminate in 69. Not a single case of perforation was produced. Judicious use of contrast enema can improve specificity of diagnosis in cases with discordant clinical and plain radiographic findings. PMID:1501938

Kao, S C; Smith, W L; Franken, E A; Sato, Y; Sullivan, J H; McGee, J A

1992-01-01

34

Source Assessment: Major Barium Chemicals.  

National Technical Information Service (NTIS)

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 eff...

H. D. Troy R. B. Rezink

1978-01-01

35

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,...

36

Necrotizing proctitis caused by injection of barium into the wall of the rectum  

Microsoft Academic Search

ConclusionIt is the authors belief that when the barium enema was administered inflation forced the tip of the Bardex catheter into\\u000a the rectal mucosa. Rand8 believes that inflation causes high intraluminal pressure by preventing the escape of contrast media through the anus.\\u000a \\u000a Apparently, this is the first reported case in which accidental introduction of barium sulfate suspension into the wall

John A. Altobelli; TAKEO YAMASI-HTA; Guy L. Kratzer

1970-01-01

37

Colon polyp morphology on double-contrast berium enema: its pathologic predictive value  

SciTech Connect

The morphologic appearance of 96 polyps seen on double-contrast barium enema was reviewed to assess the predictive value of various signs described to diagnose malignancy. Size, surface contour, basal indentation, and pedunculation were studied. Sessile polyps had an appreciable incidence of malignancy, with size being the best indicator of that risk. Pedunculation was found to be a reliable sign of benignity in predicting the absence of malignant invasion into the adjacent colonic wall. Polyps under 1 cm and having a smooth contour were invariably benign. Conversely, polyps larger than 1 cm with a lobulated contour and basal indentation had a significant incidence of malignancy.

Ott, D.J. (Bowman Gray School of Medicine, Winston-Salem, NC); Gelfand, D.W.; Wu, W.C.; Ablin, D.S.

1983-11-01

38

21 CFR 876.5210 - Enema kit.  

Code of Federal Regulations, 2013 CFR

...enema kit is a device intended to instill water or other fluids into the colon through a nozzle inserted into the rectum to promote evacuation of the contents of the lower colon. The device consists of a container for fluid connected to the...

2013-04-01

39

Comparative study of enema retention and preference in ulcerative colitis  

PubMed Central

Background: Therapeutic enemas are often used to treat active colitis but their retention may be limited because of urgency to defecate. Some preparations may be better retained and tolerated than others because of their physical properties. Aim: To compare patient preference and retention of four therapeutic enemas, including a nicotine enema, in patients with ulcerative colitis (UC). Methods: Twenty four patients with active UC received the four trial enemascorticosteroid, 5-amino salicylate (5-ASA), and nicotine liquid enemas and a corticosteroid foam, in a randomised order, taking one enema on each of four successive nights. Patients scored them 1 to 4 for ease of administration and retention, degree of abdominal bloating, and for their overall preference. Results: Fifteen patients rated nicotine their overall favourite or second favourite, compared with 14 for corticosteroid foam and 11 for 5-ASA and corticosteroid liquids, but this was not significant (p = 0.302). Overall, there was no significant difference in overnight retention. However, the nicotine enema tended to be less well retained in patients with milder urgency but a higher proportion retained it overnight with more severe urgency (p = 0.031 compared with 5-ASA enema). Conclusion: There was no significant difference in patient preference or overall duration of retention for the four enemas.

Ingram, J; Rhodes, J; Evans, B; Newcombe, R; Thomas, G

2005-01-01

40

Antegrade continence enema (ACE): current practice.  

PubMed

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

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

2008-04-12

41

The antegrade continence enema procedure: A review of the literature  

Microsoft Academic Search

Since the antegrade continence enema (ACE) was first described in 1990 for fecal incontinence, more than 100 cases have been reported in the literature. This report reviews the indications, operative modifications, outcome, and complications of the procedure.

Joy L Graf; Christopher Strear; Barbara Bratton; H. Tamiko Housley; Russell W Jennings; Michael R Harrison; Craig T Albanese

1998-01-01

42

L-glutamine enemas attenuate mucosal injury in experimental colitis  

Microsoft Academic Search

PURPOSE: The aim of this study was to investigate the role of I-glutamine, short chain fatty acid, prednisolone, and mesalazine (5-aminosalicylic acid) enemas on mucosal damage and inflammation in experimental colitis. METHODS: Colitis was induced in rats with trinitrobenzene sulfonic acid in ethanol. Saline (n=14), prednisolone (n=13), 5-aminosalicylic acid (n=14), I-glutamine (n=14), and short chain fatty acid (n=13) enemas were

Ekrem Kaya; Esma Srmen Gr; Halil zg; Ahmet Bayer; Rifat Tokyay

1999-01-01

43

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

PubMed Central

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 12 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.

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

2012-01-01

44

Outpatient Detoxification  

Microsoft Academic Search

An extensive review of the literature on outpatient detoxification from alcohol and\\/or other substances was conducted. REFLINE of the National Library of Medicine, the National Clearinghouse for Alcohol and Drug Information and the Education Resources Information Center (ERIC) were utilized in the search for appropriate articles. Complete references and brief summaries of the 22 articles are included.

Gary P. Bischof; Judith A. Booker; Teresa L. Dyck; Elizabeth A. Graney; Irene P. Hamblen; Cheryl L. B. Hittinger; Mary K. Holzinger; Christopher Smith

1991-01-01

45

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

Microsoft Academic Search

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=01083 for CTC vs ACBE), and colonoscopy 98% (91-100, p<00001 for colonoscopy vs CTC). For lesions 6-9 mm in size (n=116), sensitivity was 35% for

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

46

COLONOSCOPY AND DOUBLE CONTRAST BARIUM ENEMA EXAMINATION IN CHRONIC ULCERATIVE COLITIS  

Microsoft Academic Search

severity of ulcerative disease of the colon. Correlative studies of the roentgenographic and pathologic features carried out on colectomv specimens2 show that roent- genology often underestimates both the extent and the severity of the disease pro- cess. Colonoscopy, with biopsy of the colon, provides a method of studying this problem more systematically. Earlier instruments presented some problems,3 but with the

H. M. GILNIOUR; J. C. SHEARMAN

47

Racial Differences in Use of Colonoscopy, Sigmoidoscopy, and Barium Enema in Medicare Beneficiaries  

Microsoft Academic Search

Colorectal cancer is often diagnosed at a later stage in blacks. We wanted to know if racial differences existed in the use of tests for detection of colorectal cancer. A 5% random sample was obtained of all Medicare beneficiaries with Part B coverage, aged 65 years and older and classified as white or black race. The numbers of colonoscopies, flexible

Robert J. Richards; Dean M. Reker

2002-01-01

48

Isoosmolar enemas demonstrate preferential gastrointestinal distribution, safety, and acceptability compared with hyperosmolar and hypoosmolar enemas as a potential delivery vehicle for rectal microbicides.  

PubMed

Abstract Rectally applied antiretroviral microbicides for preexposure prophylaxis (PrEP) of HIV infection are currently in development. Since enemas (rectal douches) are commonly used by men who have sex with men prior to receptive anal intercourse, a microbicide enema could enhance PrEP adherence by fitting seamlessly within the usual sexual practices. We assessed the distribution, safety, and acceptability of three enema types-hyperosmolar (Fleet), hypoosmolar (distilled water), and isoosmolar (Normosol-R)-in a crossover design. Nine men received each enema type in random order. Enemas were radiolabeled [(99m)Tc-diethylene triamine pentaacetic acid (DTPA)] to assess enema distribution in the colon using single photon emission computed tomography/computed tomography (SPECT/CT) imaging. Plasma (99m)Tc-DTPA indicated mucosal permeability. Sigmoidoscopic colon tissue biopsies were taken to assess injury as well as tissue penetration of the (99m)Tc-DTPA. Acceptability was assessed after each product use and at the end of the study. SPECT/CT imaging showed that the isoosmolar enema had greater proximal colonic distribution (up to the splenic flexure) and greater luminal and colon tissue concentrations of (99m)Tc-DTPA when compared to the other enemas (p<0.01). Colon biopsies also showed that only the hyperosmolar enema caused sloughing of the colonic epithelium (p<0.05). In permeability testing, the hypoosmolar enema had higher plasma (99m)Tc-DTPA 24-h area under the concentration-time curve and peak concentration compared to the hyperosmolar and isoosmolar enemas, respectively. Acceptability was generally good with no clear preferences among the three enema types. The isoosmolar enema was superior or similar to the other enemas in all categories and is a good candidate for further development as a rectal microbicide vehicle. PMID:23885722

Leyva, Francisco J; Bakshi, Rahul P; Fuchs, Edward J; Li, Liye; Caffo, Brian S; Goldsmith, Arthur J; Ventuneac, Ana; Carballo-Diguez, Alex; Du, Yong; Leal, Jeffrey P; Lee, Linda A; Torbenson, Michael S; Hendrix, Craig W

2013-08-24

49

Impact of cecostomy and antegrade colonic enemas on management of fecal incontinence and constipation  

Microsoft Academic Search

BackgroundIn childhood and adolescence, fecal soiling represents a psychologically devastating problem. Physical and emotional distress associated with daily rectal enemas is minimized by the introduction of a cecostomy tube for colonic cleansing with antegrade colonic enemas (ACEs).

Andrew L. Wong; Dragan Kravarusic; Sarah L. Wong

2008-01-01

50

Barium and Radium Radiopolarography.  

National Technical Information Service (NTIS)

Radiopolarography has been applied to the study of two elements (barium and radium) which is difficult by classical polarography because of their strong electropositivity. Various parameters have been considered: nature, concentration and pH of supporting...

B. Fourest

1979-01-01

51

Fecal incontinence successfully managed by antegrade continence enema in children: A report of two cases  

Microsoft Academic Search

Two children with intractable fecal incontinence after correction of high anorectal malformations were successfully managed by the daily administration of a glycerin enema into the cecum via an appendicocecostomy or tubularized cecostomy, according to the method of Malone's antegrade continence enema (ACE). Fluoroscopic defecography performed during this procedure in each patient disclosed that the glycerin enema promptly evoked cecal peristalsis,

Takayuki Yamamoto; Hiroyuki Kubo; Makoto Honzumi

1996-01-01

52

Phosphate enema toxicosis in a pygmy goat wether  

PubMed Central

Abstract Phosphate enema toxicity was diagnosed in a 7-month-old, castrated male, pygmy goat. On presentation, clinical findings included mild depression, tachycardia, tachypnea, rumen stasis, muscle tremors, hypocalcemia, hypokalemia, hypochloremia, hyperphosphatemia, azotemia, and metabolic acidosis. Fluid diuresis and parenteral antimicrobial therapy resulted in recovery after 3 d of treatment.

2004-01-01

53

PERFORATION OF MALONE ANTEGRADE CONTINENCE ENEMA: DIAGNOSIS AND MANAGEMENT  

Microsoft Academic Search

Purpose:Severe bowel dysfunction often accompanies neurogenic bladder, and Malone antegrade continence enema (MACE) procedures can lead to improvement in the quality of life of these patients. However, complications such as catheter false passage with subsequent intraperitoneal instillation of irrigation can lead to significant morbidity. We present our experience with the diagnosis and management of this condition.

WILLIAM DeFOOR; EUGENE MINEVICH; PRAMOD REDDY; ALBAHA BARQAWI; DAVID KITCHENS; CURTIS SHELDON; MARTIN KOYLE

2005-01-01

54

[Diagnostic accuracy and clinical significance of combined small bowel enema and scintigraphy with pure fractions of neutrophil granulocytes labeled with HMPAO-Tc99m in chronic intestinal inflammation].  

PubMed

Enema is the primary imaging method in the diagnosis of Crohn's disease in the small bowel, with clinical follow-up examinations performed by gastroenterologists as the gold standard. The information provided by small bowel enema, in addition to endoscopic findings, is usually sufficient for the gastroenterologist to make the definitive diagnosis and to plan the whole treatment. Scintigraphy with leukocytes labelled with HMPAO-Tc99m has several unique characteristics favoring its use as a diagnostic imaging method in Crohn's disease and ulcerative colitis. It is a noninvasive method requiring no bowel preparation and it is safe in severely ill patients in whom such conventional imaging methods as barium enema or colonscopy might be hazardous. In this study, the authors report the results of their experience with diagnostic small bowel enema and leukocyte scintigraphy with HMPAO-Tc99m in 28 patients with inflammatory bowel disease (Crohn's disease in 18 patients, ulcerative colitis in 7 and radiation-induced inflammatory stenosis of the sigma-rectum, bowel inflammation after appendicectomy and bladder surgery, respectively, in 1 patient each). Scintigraphy with autologous granulocytes with HMPAO-Tc99m was positive in 26 patients and negative in 2. Twenty-five patients were true positives and 1 was a false positive. Fifteen patients were also submitted to small bowel enema: 12 of them were positive (true positive) and 3 negative (1 false negative and 2 true negative). The results of granulocytes scintigraphy were compared with those of small bowel enema: the radionuclide study appeared superior in the assessment of bowel inflammation associated with Crohn's disease and ulcerative colitis. Indeed, scintigraphy depicted granulocyte uptake in the colon where enema had shown no major findings in 4 patients with Crohn's disease. In the author's opinion, the overall sensitivity, specificity and positive predictive value of combined leukocyte scintigraphy and small bowel enema play a major role in the early diagnosis of Crohn's disease and ulcerative colitis and in the assessment of disease extent and activity. PMID:9045240

Celentano, L; Cirillo, L C; D'Arienzo, A; De Santis, D A

1996-10-01

55

Semiconducting barium titanate  

Microsoft Academic Search

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

W. Heywang

1971-01-01

56

Therapeutic enema for pediatric ileocolic intussusception: using a balloon catheter improves efficacy.  

PubMed

A therapeutic enema for pediatric intussusception may benefit by using a rectal catheter with an inflated balloon. We compared the efficacy of rectal catheters without and with an inflated balloon for air and liquid enemas. We retrospectively reviewed PACS images and hospital records of children who had a therapeutic enema for intussusception at our institution between January 2006 and May 2011. Sixty-two enemas in 60 children were included. Physician assistants with training in pediatric fluoroscopy and pediatric radiologists were more likely to use air enema (37/41 or 90%), and general radiologists were more likely to use liquid enema (18/21 or 86%). However, the reduction rate for air enema overall was only slightly higher than for liquid enema using an inflated balloon catheter (36/40 or 90% versus 14/17 or 82%) (P?=?0.653). For air enema, mean procedure time for successful reductions was shorter with an inflated balloon catheter than with a plastic catheter (7.6 versus 28.2min) (P?enema, the reduction rate was higher with an inflated balloon catheter than without inflation (14/17 or 82% versus 1/5 or 20%; P?=?0.021), but the procedure time was not shortened. No procedural complications were directly attributed to using a rectal catheter with an inflated balloon. Using a rectal catheter with an inflated balloon appears to safely shorten the procedure time of a successful air enema and improve the reduction rate of liquid enema. PMID:23748969

Betz, Bradford W; Hagedorn, Jeffrey E; Guikema, Jeffrey S; Barnes, Courtney L

2013-06-09

57

Barium carbonate intoxication  

Microsoft Academic Search

A 22-year-old man attempted to commit suicide by swallowing an unknown amount of barium carbonate dissolved in hydrochloric acid. Shortly after ingestion, he developed crampy abdominal pain and generalized muscle weakness. About 2 h later, respiratory failure ensued necessitating orotracheal intubation and mechanical ventilation. Concomitantly, life-threatening arrhythmias including ventricular fibrillation occurred, and he had to be resuscitated for 45 min.

Th. F. Schorn; Ch. Olbricht; A. Schler; A. Franz; K. Wittek; H.-J. Balks; E. Hausmann; H.-H. Wellhoener

1991-01-01

58

Barium Vanadate Microspheres  

NASA Astrophysics Data System (ADS)

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.

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

2009-11-01

59

Properties of Semiconductive Barium Titanates  

Microsoft Academic Search

The resistivity of barium titanate which is usually of the order of 1091012 ohm-cm, may be remarkably reduced with suitable control in valency. The valency-controlled barium titanate, whose resistivity is of the order of 10104 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.

Osamu Saburi

1959-01-01

60

75 FR 33824 - Barium Chloride From China  

Federal Register 2010, 2011, 2012, 2013

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

2010-06-15

61

75 FR 19657 - Barium Chloride From China  

Federal Register 2010, 2011, 2012, 2013

...731-TA-149 (Third Review)] Barium Chloride From China AGENCY: United States International...the antidumping duty order on barium chloride from China...the antidumping duty order on barium chloride from China would be likely to lead...

2010-04-15

62

Barium isotope fractionation in the global barium cycle: Evidence from barium minerals and precipitation experiments  

NASA Astrophysics Data System (ADS)

In this study, we present first results from an ongoing investigation on the stable barium (Ba) isotope fractionation in the natural barium cycle. Stable Ba isotope signatures of international IAEA reference materials (synthetic barium sulfate and barium carbonate), and terrestrial Ba gangue minerals have been analyzed as a first approach to evaluate potential discriminating processes in the global geochemical barium cycle. Measurements were carried out on a multi-collector ICP-MS applying a 130Ba/135Ba double spike. Data are given as per mil deviations from a laboratory Ba nitrate standard solution in the d137/134Ba notation (external 2s stdev < 0.1 per mil). Whereas the various synthetic solid standards and p.a. quality synthetic barium chloride show very similar isotope results close to the nitrate standard solution, the terrestrial barium gangue minerals (four barites, one norsethite [BaMg(CO3)2]) were depleted in the heavy isotope (d137/134Ba values between 0 and -0.2 per mil). A natural barite, from an unknown Chinese locality, gave an isotope value of -0.4 per mil. Also measured high 34S/32S and 18O/16O ratios in this sample indicate that this barite has been formed under influence of microbial sulfate reduction, probably in a marine diagenetic environment. The observed natural discriminations are by far larger than the analytical uncertainty of the isotope measurements, indicating isotope discrimination in the natural barium cycle. Precipitation experiments from aqueous barium chloride solutions at temperatures of 20 and 80C indicate that the light Ba isotope is enriched in pure barium carbonate or barium sulfate compared to the aqueous solution. A maximum isotope fractionation of -0.3 per mil is observed, for both barium carbonate and sulfate, that seems to be influenced by precipitation rate (BaCO3) and/or the aqueous speciation, but less by temperature.

von Allmen, Katja; Bttcher, Michael E.; Samankassou, Elias; Ngler, Thomas F.

2010-05-01

63

The Malone Antegrade Continence Enema Procedure in the Management of Patients with Spina Bifida  

Microsoft Academic Search

Background: In patients with spina bifida, traditional bowel management programs such as suppositories, retrograde enemas, and manual disimpaction have been largely unsatisfactory. The Malone antegrade continence enema (ACE) procedure has largely changed our approach to bowel management in this patient group.Study Design: Over a 3-year period between January 1994 and January 1997, 27 patients with spina bifida underwent the Malone

Terry W. Hensle; Elizabeth A. Reiley; David T. Chang

1998-01-01

64

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

Microsoft Academic Search

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

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

1995-01-01

65

Barium uranyl diphosphonates  

SciTech Connect

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.

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

66

Fecal incontinence successfully managed by antegrade continence enema in children: a report of two cases.  

PubMed

Two children with intractable fecal incontinence after correction of high anorectal malformations were successfully managed by the daily administration of a glycerin enema into the cecum via an appendicocecostomy or tubularized cecostomy, according to the method of Malone's antegrade continence enema (ACE). Fluoroscopic defecography performed during this procedure in each patient disclosed that the glycerin enema promptly evoked cecal peristalsis, which was transmitted to the distal colon and rectum, and squeezed out almost all the fecal matter, evacuating it from the anus. However, two enemas within a short interval were required to achieve a complete washout of feces. Although this report describes only two patients, our experience confirmed that the ACE was very effective and that adding the word "continence" to antegrade enema was justifiable. Moreover, fluoroscopic defecography was proven to play a significant role in determining the appropriate regimens of this technique to achieve complete washout of the feces. PMID:9017969

Yamamoto, T; Kubo, H; Honzumi, M

1996-01-01

67

[Value of small bowel double contrast enema in clinical interventions].  

PubMed

The double contrast enema is the most effective morphological screening method for the evaluation of the whole small bowel. Its sensitivity is 85%, its specifity 96.7%. In specific clinical problems the number of pathological roentgen findings rises: from 34.4% when all indications are taken into consideration to 58% in indications specific to the small intestine such as Morbus Crohn or the malabsorption syndrome. Search for tumours and the double contrast of the small bowel in unclear gastro-intestinal bleeding are unproductive. The weak point of this screening method is the lower part of the small intestine. Therefore, the selective peroral or retrograde analysis of the terminal ileum supplement the contrast method. A precondition for good results is an adequate technical standard. Besides the clinical results some technical results are therefore discussed such as contrast medium quantities, examination and X-ray time, radiation exposure and influences on the image quality. PMID:3083480

Rdl, W; Possel, H M; Prull, A; Wunderlich, L

1986-02-01

68

Discovery of the barium isotopes  

SciTech Connect

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

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

2010-11-15

69

Suicidal poisoning with barium chloride.  

PubMed

A 49-year-old male pharmacist suffering from depression phoned the emergency services telling of how he had ingested barium chloride. He was found semicomatose in bed and resuscitation attempts were to no avail and he died at the scene. A white plastic container labelled "Barium chloride... Poison", and a book with a writing on a blank page... "give sulphate... SO(4)" were found. At autopsy, 1l of whitish-yellow fluid was found in the stomach. Autopsy barium levels were: blood 9.9mg/l; bile 8.8mg/l; urine 6.3mg/l; gastric 10.0g/l. Cause of death was given as cardiorespiratory arrest due to barium chloride poisoning. The issue of barium toxicity in a variety of itatrogenic and non itatrogenic situation is discussed together with the two only other cases of suicidal barium ingestion, and the feasibility of early intervention at the scene by an emergency team. PMID:11376995

Jourdan, S; Bertoni, M; Sergio, P; Michele, P; Rossi, M

2001-06-15

70

[Involuntary outpatient treatment].  

PubMed

Much has been written about involuntary outpatient treatment, both in Israel and abroad. Since the amendment of the law in Israel in 1991, there is an option for compulsory outpatient treatment that is Less confining than hospitalization. Research has noted its efficacy in avoiding exacerbation of the mental state, repeat hospitalizations and involvement in dangerous activities among patients with low compliance to treatment. In practice, there is no mechanism for implementation or enforcement. Thus, the main difficulty noted by Spinzy and Krieger, is the lack of tools to supervise involuntary outpatient treatment, thereby making it difficult to implement the law of involuntary outpatient treatment ordered by the regional psychiatrist. In addition, the court interpreted the law in a manner that prevents taking measures against the patient who does not comply with compulsory outpatient treatment unless his condition is so severe that it requires court ordered hospitalization. The issue becomes more problematic with court ordered compulsory outpatient treatment. In the United States there is Assisted Outpatient Treatment (AOT) in 42 states. The criteria include dangerousness to the environment, harm to self, or severe inability to care for one's self. AOT helps prevent hospitalizations and improves the outcome of treatment. According to "Kendra's Law" in the United States, the Court detaiLs the biological and psychosocial treatment programs in the court order recommendations: The recommendations include: create uniformity, determine a mechanism of action, assign skilled manpower to implement compulsory outpatient treatment, establish a plan for compulsory outpatient treatment, and create a legal mechanism to supervise patients in court ordered outpatient treatment. In conclusion, determining a mechanism for intervention, implementation and supervision of compulsory outpatient treatment is first and foremost in the best interest of: the patient, who does not want his condition to deteriorate to rehospitalization, the caregivers, for whom the mechanism will help provide medical care, and for society, which will be better protected. PMID:22519266

Oyffe, Igor; Melamed, Yuval

2012-03-01

71

Left-colon antegrade continence enema (LACE) procedure for fecal incontinence  

Microsoft Academic Search

Purpose: Antegrade continence enemas (ACE) are an efficacious therapeutic option for patients with fecal incontinence. The authors review their institutions experience with a variation of the Monti-Malone ACE procedure using the left colon as a source of an intestinal conduit and enema reservoir.Methods: From 2000 to 2002, 18 patients with fecal incontinence or intractable constipation underwent left-colon ACE (LACE) procedure.

Bernard M Churchill; Daniel A De Ugarte; James B Atkinson

2003-01-01

72

Rebamipide EnemasNew Effective Treatment for Patients with Corticosteroid Dependent or Resistant Ulcerative Colitis  

Microsoft Academic Search

In this study we investigated the effect of rebamipide enema in patients with steroid-resistant and\\/or dependent ulcerative colitis. Rebamipide enemas were administered twice daily for a 12-week period; this treatment was further continued longer in patients who requested this. Disease activity index as reflecting the clinical condition and endoscopic index with histological grading were determined before and after the treatment

Mitsuki Miyata; Kunio Kasugai; Tetsuya Ishikawa; Shinichi Kakumu; Masafumi Onishi; Takeshi Mori

2005-01-01

73

Antegrade continence enema for the treatment of neurogenic constipation and fecal incontinence after spinal cord injury  

Microsoft Academic Search

Objective: To describe the effects of an antegrade continence enema stoma formed in a paraplegic man with intractable constipation and fecal incontinence.Design: Case report.Setting: Spinal cord injury unit, Veterans Affairs hospital.Participants: Spinal cord injury (SCI) patient with T12 paraplegia.Intervention: Surgical formation of antegrade continence enema stoma.Main Outcome Measures: Time of bowel program care, ease of fecal elimination, safety of procedure.Results:

Claire C. Yang; Steven A. Stiens

2000-01-01

74

Bacterial Translocation in the Course of Acute Pancreatitis: Beneficial Role of Nonabsorbable Antibiotics and Lactitol Enemas  

Microsoft Academic Search

Two-hundred Wistar rats were allocated to 4 groups. The groups, 3 representing our acute pancreatitis model induced by intrabiliary injection of a trypsin\\/enterokinase mixture, were studied as follows: (A) no treatment; (B) given a daily 30-ml enema with 20 mg\\/kg rifaximin; (C) given a daily 30-ml enema with 20 mg\\/kg rifaximin plus lactitol 0.5 g\\/kg, and (D) given a daily

F. Marotta; T. C. Geng; C. C. Wu; G. Barbi

1996-01-01

75

Reducing unnecessary outpatient attendances  

Microsoft Academic Search

Purpose The purpose of this paper is to explore unnecessary outpatient department attendances and to improve efficiency by actively pre-assessing patient charts and pre-specifying management plans before scheduled outpatient visits. Design\\/methodology\\/approach All charts were reviewed by a senior clinician two weeks before the clinic and a brief, written management plan made. Findings A significant reduction in clinic

F. Donnellan; T. Hussain; A. R. Aftab; C. McGurk

2010-01-01

76

Deflocculants for Tape Casting Barium Titanate.  

National Technical Information Service (NTIS)

The dispersion properties of disperants with barium titanate were studied. Rheological, settling, volume and adsorption isotherms were obtained for barium titanate in MEK-ethanol using a phosphate ester dispersant. Effects of storage conditions, dispersan...

W. R. Cannon

1983-01-01

77

Barium hexaferrite (M-phase) exhibiting superstructure  

Microsoft Academic Search

Barium hexaferrite (M-phase) prepared by the flux method is found to exhibit a ..sqrt..3a x ..sqrt..3a superstructure similar to barium hexaaluminate. Morgan and Shaw as well as Iyi et al have recently reported the formation of a barium-rich phase of barium hexaaluminate possessing a ..sqrt..3a x ..sqrt..3a superstructure of the magnetoplumbite structure. In view of the similarities between the layer

L. Ganapathi; J. Gopalakrishnan; C. N. R. Rao

1984-01-01

78

Barium Stars and Thermohaline Mixing  

SciTech Connect

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.

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

2008-01-24

79

Outpatient flexible fibreoptic sigmoidoscopy, diagnostic yield and the value of glucagon.  

PubMed

One hundred patients had flexible fibreoptic sigmoidoscopy in an outpatient clinic after preparation with a phosphate enema but without sedation. Patients were randomized to receive 1 mg of glucagon intravenously or a matching placebo. The discomfort of the patients and the ease of the procedure were similar in both groups. Nine patients were excluded from the final analysis as they had low rectal or anal lesions. In the remaining 91 patients, abnormalities were found in 27 (29.6 per cent) including 16 adenomatous polyps and 1 carcinoma. Only 3 lesions were below 20 cm and might have been easily visualized using a rigid sigmoidoscope. PMID:7018639

Foster, G E; Vellacott, K D; Balfour, T W; Hardcastle, J D

1981-07-01

80

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

SciTech Connect

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.

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

81

Infection of Aedes albopictus with chikungunya virus rectally administered by enema.  

PubMed

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 10(6.95) tissue culture infective dose(50) (TCID(50))/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

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

2012-12-18

82

Ultrasound Guided Reduction of an Ileocolic Intussusception by a Hydrostatic Method by Using Normal Saline Enema in Paediatric Patients: A Study of 30 Cases  

PubMed Central

Introduction The conventional hydrostatic reduction of an intussusception with barium enema or the pneumatic reduction of an intussusception is associated with considerable ionizing radiations and a risk of perforation; while the hydrostatic reduction of an intussusception under ultrasound guidance is a very safe method because the whole procedure is visualized with real time ultrasound. Also, being a non-invasive method with a high success rate, this procedure has emerged as a useful alternative to a surgical intervention. Aim The aim of this study was to evaluate the role of ultrasound and colour Doppler studies for the guidance of the hydrostatic reduction of a childhood intussusception by using normal saline. Method Among 41 children who were evaluated with ultrasonography for the confirmation of the presence of intussusceptions, hydrostatic reduction of intussusception were performed under a sonographic guidance in 30 patients, whereas 11 patients were excluded due to clinical contraindications. Results This disease was observed mostly at the ages of 6 months to 24 months. In 80% of the patients, there was a recent history of gastroenteritis and 40 % had a history of common cold. The most common site of the intussusception was the transverse colon near the hepatic flexor of the colon (90%), with a mean duration of 22.117.3 hours. The overall rate of a successful reduction was 87% and the mean reduction time was 14 minutes. None of the cases showed recurrence within 24 hrs. No complications were observed. Conclusion We conclude that ultrasound with colour Doppler study is very useful for the diagnosis of intussusceptions, as well as for guided hydrostatic reductions by using normal saline enema. This is an optimal, simple, and a safe procedure for the treatment of intussusceptions in paediatric patients.

Digant, Shastri Mona; Rucha, Seth; Eke, Dessai

2012-01-01

83

Computer modelling of barium titanate  

Microsoft Academic Search

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

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

1983-01-01

84

The Vapor Pressure of Barium.  

National Technical Information Service (NTIS)

The vapor pressure and the heat of vaporization of barium were measured using the Knudsen target technique. A recording microbalance was used to measure both the effusion rate and the recoil force exerted by the beam onto the target. The measured vapor pr...

P. D. Zavitsanos

1968-01-01

85

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

PubMed Central

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

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

2013-01-01

86

Drug complications in outpatients  

Microsoft Academic Search

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

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

2000-01-01

87

Anaphylaxis to carrageenan: A pseudolatex allergy  

Microsoft Academic Search

Background: Anaphylactic reactions during a barium enema have been attributed to allergy to latex on the barium enema device. The observation of anaphylaxis during barium enema without latex exposure or latex allergy led to the performance of an allergy skin test to the barium enema solution. Methods: Individual components of the barium enema solution were obtained for double-blind skin testing.

Susan M. Tarlo; Jerry Dolovich; Charles Listgarten

1995-01-01

88

Yttrium and barium in open clusters  

NASA Astrophysics Data System (ADS)

Based on the VLT high-resolution spectra for stars of five open clusters: Ruprecht 4, Ruprecht 7, Berkeley 25, Berkeley 73, and Berkeley 75 (G. Carraro et al., 2007) we determined the yttrium and barium abundances using the synthetic-spectrum method. Barium abundance was calculated under a non-LTE approximation. We analyzed the correlation between yttrium and barium abundances and the ages of open clusters and stars of the Galactic thin disk.

Mishenina, T. V.; Korotin, S. A.; Yegorova, I. A.; Kovtukh, V. V.; Carraro, G.

2013-06-01

89

40 CFR 721.10011 - Barium calcium manganese strontium oxide.  

Code of Federal Regulations, 2010 CFR

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

2010-07-01

90

40 CFR 721.10011 - Barium calcium manganese strontium oxide.  

Code of Federal Regulations, 2010 CFR

...2009-07-01 2009-07-01 false Barium calcium manganese strontium oxide. ...Chemical Substances § 721.10011 Barium calcium manganese strontium oxide. ...The chemical substance identified as barium calcium manganese strontium...

2009-07-01

91

40 CFR 721.10011 - Barium calcium manganese strontium oxide.  

Code of Federal Regulations, 2013 CFR

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

2013-07-01

92

75 FR 20625 - Barium Chloride From China  

Federal Register 2010, 2011, 2012, 2013

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

2010-04-20

93

Sulphasalazine retention enemas in ulcerative colitis: a double-blind trial  

Microsoft Academic Search

Thirty-four patients with ulcerative colitis completed a double-blind assessment comparing the efficacy of two weeks of treatment with nightly retention enemas containing 3 g sulphasalazine or placebo. Symptom grading, sigmoidoscopic appearance, rectal biopsy specimens, and diary records were used to assess benefit and side effects. The active drug conferred significant benefit compared with placebo as shown by several criteria, but

K R Palmer; J R Goepel; C D Holdsworth

1981-01-01

94

Antegrade continence enema in the treatment of obstructed defaecation with or without faecal incontinence  

Microsoft Academic Search

Background Obstructed defaecation and faecal incontinence are complex functional disorders that pose management challenges. In recent times, the antegrade continence enema (ACE) has been tried both as a primary procedure and as a final resort to avoid a colostomy in patients with a variety of functional problems. The pur- pose of this study was to evaluate the role of the

G. R. Hirst; P. J. Arumugam; A. J. Watkins; P. Mackey; A. R. Morgan; N. D. Carr; J. Beynon

2005-01-01

95

Y-appendicoplasty: A technique to minimize stomal complications in antegrade continence enema  

Microsoft Academic Search

Purpose: The antegrade continence enema (ACE) is an effective method of treatment of fecal incontinence and constipation. However, the original procedure described is not easy to perform and is associated with a high complication rate, especially stomal stenosis-necrosis (55%). Even with introduction of orthotopic appendicostomy, composite series still report an incidence of 30% with stomal problems. The authors report a

Paul K. H Tam

1999-01-01

96

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

Microsoft Academic Search

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

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

1997-01-01

97

Combined Mitrofanoff and Antegrade Continence Enema Procedures for Urinary and Fecal Incontinence  

Microsoft Academic Search

PurposeFecal soiling or intractable constipation frequently occurs in association with urinary incontinence in children undergoing major reconstructive urological operations. To treat double incontinence or the combination of wetting and severe constipation, we constructed a Mitrofanoff conduit and a channel for antegrade continence enemas in 18 patients between 1989 and 1995. We review the underlying pathological conditions, various surgical techniques and

Y. Mor; F. M. J. Quinn; B. Carr; P. D. Mouriquand; P. G. Duffy; P. G. Ransley

1997-01-01

98

Outpatient therapeutic nuclear oncology.  

PubMed

In the beginning, nuclear medicine was radionuclide therapy, which has evolved into molecular tumour-targeted control of metastatic cancer. Safe, efficacious, clinical practice of therapeutic nuclear oncology may now be based upon accurate personalised dosimetry by quantitative gamma SPECT/CT imaging to prescribe tumoricidal activities without critical organ toxicity. Preferred therapy radionuclides possess gamma emission of modest energy and abundance to enable quantitative SPECT/CT imaging for calculation of the beta therapy dosimetry, without radiation exposure risk to hospital personnel, carers, family or members of the public. The safety of outpatient radiopharmaceutical therapy of cancer with Iodine-131, Samarium-153, Holmium-166, Rhenium-186, Rhenium-188, Lutetium-177 and Indium-111 is reviewed. Measured activity release rates and radiation exposure to carers and the public are all within recommendations and guidelines of international regulatory agencies and, when permitted by local regulatory authorities allow cost-effective, safe, outpatient radionuclide therapy of cancer without isolation in hospital. PMID:22222779

Turner, J Harvey

2012-01-07

99

Modeling and minimization of barium sulfate scale  

Treesearch

Barium carbonate dissolves in the bleach plant when the pH drops below 7 and, if barium and ... at higher pH, but this will work only in mills where calcium scales are not a concern. A third option is to use crystal modifiers (scale inhibitors).

100

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

SciTech Connect

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.

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

1989-05-01

101

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

PubMed

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

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

2008-01-01

102

New barium ferrite particles: Spherical shape  

NASA Astrophysics Data System (ADS)

Pure and ZnTi-doped spherical barium ferrite particles were prepared using two different methods: semicoprecipitation and ultrasonic spray pyrolysis. The ultrasonic spray pyrolysis method was more effective in controlling particle shape. Particle size was in between 0.27 and 0.3 ?m. Coercivity and saturation magnetization were in the range of 1000 to 5000 Oe and 49 to 53 emu/g, respectively. Crystallization of amorphous Ba-Fe-O spherical precursors occurs at a lower temperature than Ba-Fe-Zn-Ti-O precursors. ?M measurement shows that magnetic interaction in spherical barium ferrite tape is weaker than hexagonal platelet barium ferrite.

Hong, Y. K.; Jung, H. S.

1999-04-01

103

Treatment of distal ulcerative colitis with beclomethasone enemas: High therapeutic efficacy without endocrine side effects  

Microsoft Academic Search

Sixteen patients with 18 attacks of distal ulcerative colitis were treated randomly with either 0.5 mg topically administered\\u000a beclomethasone dipropionate (BDP) or 5 mg betamethasone phosphate (BMT). The effect of the steroid enemas on adrenocortical\\u000a function was examined by ACTH tests, which were performed before and 20 days after treatment. At completion of the trial,\\u000a a marked suppression of the

George Bansky; HUGO BIJHLER; Bernhard Stamm; Walter H. Hcki; Peter Buchmann; Jrg Mller

1987-01-01

104

Efficacy of Rebamipide Enemas in Active Distal Ulcerative Colitis and Proctitis: A Prospective Study Report  

Microsoft Academic Search

Rebamipide has a broad spectrum of pharmacological actions that include suppression of neutrophil functions and stimulation\\u000a of mucosal epithelial cell regeneration by increasing the expression of epithelial growth factor (EGF) and the EGF receptor.\\u000a Sixteen patients with active ulcerative colitis (UC; mild in 1 patient, moderate in 11, and severe in 4) were recruited. Enemas\\u000a containing 150 mg rebamipide per

K. Makiyama; F. Takeshima; T. Hamamoto

2005-01-01

105

Comparison of results of laparoscopic and open antegrade continence enema procedures  

Microsoft Academic Search

Several modifications of the Malone antegrade continence enema (ACE) procedure have now been reported. In this study we have\\u000a compared the results of our experience with the laparoscopic appendicostomy (LACE procedure) with the published results of\\u000a previously described open ACE procedures. Children who had the LACE procedure at our institutions were reviewed. Intra- and\\u000a postoperative problems were identified by review

A. C. Lynch; S. W. Beasley; R. W. Robertson; P. N. Morreau

1999-01-01

106

Appendicostomy for Antegrade Enema: Effects on Somatic and Psychosocial Functioning in Children With Myelomeningocele  

Microsoft Academic Search

Objective. To assess changes in somatic variables, psychosocial functioning, mental health and self-esteem after appendicostomy for antegrade enema (MACE) in children with myelomeningocele (MMC). Methods. We performed the MACE procedure in 20 children, aged 6.3 to 17.0 years. Twelve patients had an open and 8 had a laparoscopic operation. Somatic func- tion was assessed preoperatively and 6 and 16 months

Marianne Stange; Gabrielle Aafos; Ragnhild Emblem

2010-01-01

107

Removal of Barium and Radium from Groundwater.  

National Technical Information Service (NTIS)

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 fr...

V. L. Snoeyink C. C. Chambers C. K. Schmidt R. F. Manner A. G. Myers

1987-01-01

108

Deflocculants for Tape Casting Barium Titanate Dielectrics.  

National Technical Information Service (NTIS)

The tape casting slip composition barium titanate powder, MEK-Ethanol solvent, phosphate ester dispersant, acrylic binder, PEG and butyl-benzyl-phthalate plasticizers and cyclohexanone was studied. The nature of the dispersion mechanism for the phosphate ...

W. R. Cannon

1985-01-01

109

Dielectric and Piezoelectric Properties of Barium Titanate  

Microsoft Academic Search

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 -50C to +135C 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

Shepard Roberts

1947-01-01

110

Small barium rail gun for plasma injection.  

PubMed

A small rail gun with a barium electrode can be operated at higher than one shot per second to produce more than 2x10(16) barium ions with energy 10-20 eV. The operation of the gun takes advantage of the external magnetic field for cross-field plasma injection into a trap. Up to 7 kG of the magnetic field examined, the gun performance improves with the increased magnetic field strength. PMID:18647050

Kiwamoto, Y

1980-03-01

111

The rise and phalli of barium stars  

NASA Astrophysics Data System (ADS)

Barium stars are thought to be formed by accretion of material from the wind of an s-process-rich asymptotic giant branch star onto a main sequence star in a binary system. The accretor then evolves up the giant branch and, as it cools, absorption lines of barium are prominent in its spectrum. This is the barium star we see today. Barium stars are excellent probes of binary-star physics because orbital periods and eccentricities are known for nearly all of them, i.e. the sample set is complete. Binary-star theory predicts that barium stars with periods shorter than a few thousand days should circularise by tidal interaction, but the observed stars are often highly eccentric. We investigate a potential source of their eccentricity: white dwarf kicks. We can reproduce the observed period-eccentricity distribution if we introduce a moderate kick speed of a few km/s together with efficient angular momentum loss in stellar winds and efficient common-envelope ejection. Many open questions remain which are key to the wind-accretion mechanism by which barium stars and other chemically-peculiar binaries such as CH and carbon-enhanced metal-poor (CEMP) stars form.

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

112

Randomized controlled trial of prophylactic rectal stimulation and enemas on stooling patterns in extremely low birth weight infants.  

PubMed

Objective:We hypothesized that rectal stimulation and small volume enemas would accelerate normalization of stooling patterns in extremely low birth weight infants.Study Design:In a randomized controlled trial, infants with a gestational age ?28 weeks received one of the following: twice daily rectal stimulation and/or enemas until two stools were passed daily, without enemas or stimulation, for three consecutive days. Intervention only occurred when symptoms, abdominal distension and no defecation, occurred in the previous 24?h. Enema administration occurred if abdominal distension persisted without defecation occurring after rectal stimulation. Multivariable linear regression was used to determine the contribution of a patent ductus arteriosus (PDA) on normalization of stooling patterns and feeding tolerance.Result:Rectal stimulation and/or small volume enemas did not accelerate the median (quartile range) time normalization of stooling patterns, 13 (11-20) days in control group and 16 (12-25.5) days in intervention group. A higher frequency of PDA occurred in the intervention than the non-intervention group. Infants with a persistent PDA had a longer duration of parenteral nutrition, worse feeding tolerance and more days to achieve normal stooling patterns. In multivariable regression analysis, a PDA, not repeated rectal stimulation and/or enemas, was significantly related to stooling and feeding tolerance.Conclusion:Twice daily administration of rectal stimulation and/or enemas did not normalize stooling patterns (fecal frequency). A PDA is an important determinant of acquisition of normal stooling patterns and feeding tolerance of very immature newborns. PMID:23907087

Senz de Pipan Marcos, M; Teresa Montes Bueno, M; Sanjos, B; Gil, M; Parada, I; Amo, P

2013-08-01

113

Effects of Different Fabrication Techniques on the Yttrium-Barium-Copper Oxide High Temperature Superconductor.  

National Technical Information Service (NTIS)

This study examines how several different parameters were changed in the yttrium-barium-copper oxide superconductor when the fabrication techniques were altered by using different barium precursors, including barium peroxide and barium carbonate; sinterin...

P. A. Rhea

1988-01-01

114

Sulphate removal from sodium sulphate-rich brine and recovery of barium as a barium salt mixture.  

PubMed

Sulphate removal from sodium sulphate-rich brine using barium hydroxide and recovery of the barium salts has been investigated. The sodium sulphate-rich brine treated with different dosages of barium hydroxide to precipitate barium sulphate showed sulphate removal from 13.5 g/L to less than 400 mg/L over 60 min using a barium to sulphate molar ratio of 1.1. The thermal conversion of precipitated barium sulphate to barium sulphide achieved a conversion yield of 85% using coal as both a reducing agent and an energy source. The recovery of a pure mixture of barium salts from barium sulphide, which involved dissolution of barium sulphide and reaction with ammonium hydroxide resulted in recovery of a mixture of barium carbonate (62%) and barium hydroxide (38%), which is a critical input raw material for barium salts based acid mine drainage (AMD) desalination technologies. Under alkaline conditions of this barium salt mixture recovery process, ammonia gas is given off, while hydrogen sulfide is retained in solution as bisulfide species, and this provides basis for ammonium hydroxide separation and recovery for reuse, with hydrogen sulfide also recoverable for further industrial applications such as sulfur production by subsequent stripping. PMID:23485244

Vadapalli, Viswanath R K; Zvimba, John N; Mulopo, Jean; Motaung, Solly

2013-01-01

115

Outpatient laparoscopic sterilization.  

PubMed

This is a report on a pilot study conducted in Malaysia of outpatient sterilization utilizing laparoscopic technique under local anesthesia and sedation. The preliminary report based on 305 patients is presented with emphasis on the advantages and possible weaknesses of such procedure. Sterilization is performed in the Family Planning Specialist Center, Maternity Hospital. Patients are motivated towards sterilization during the immediate postpartum period in the Maternity Hospital and are counseled regarding the actual procedure. The mean age of the 305 patients was 32.08 years; the mean gravidity was 4.92; and the mean parity was 4.57. The majority of the patients came from the lower social strata with low educational attainment and low income. 253 cases of sterilizations were performed by laparoscopic procedures and 43 cases by minilaparotomy. In 9 cases difficulty was encountered with laparoscopy and subsequently the minilaparotomy was used. The majority of cases seemed to tolerate the sedation and local anesthesia fairly well and without much complaint of pain. Only a very small number of patients complained of pain particularly at the time when the Fallope or Lay rings were applied to the fallopian tubes. The overall complication rate was 14 (4.9%) and of these mild wound sepsis accounted for 6 (1.96%). Most of the wound sepsis was very mild and healed very quickly on daily dressing. No cases of pelvic sepsis were reported. There were 3 cases of uterine perforation by the uterine elevator. There were 2 cases where the fallopian tubes were traumatized and some degree of bleeding occurred. The bleeding was easily controlled by applying another Fallope ring. 2 patients had vomiting during the laparoscopic procedure. There were 7 cases of failed sterilization. 6 of the cases were performed by a trainee registrar in obstetrics and gynecology. The last was performed by a specialist gynecologist. Most of the failures were due to wrong application of rings. The cost per patient was estimated to be around 20 ringgit for a pair of tubal rings, anesthetic agents and suture materials. This preliminary study showed that female sterilization could be done easily as an outpatient procedure. PMID:6459518

Hamid Arshat; Yuliawiratman

1981-03-01

116

Pharmacokinetics of Caffeine following a Single Administration of Coffee Enema versus Oral Coffee Consumption in Healthy Male Subjects  

PubMed Central

The objective of this study was to determine the pharmacokinetics of caffeine after single administration of a coffee enema versus coffee consumed orally in healthy male subjects. The study design was an open-label, randomized two-phase crossover study. Eleven healthy subjects were randomly assigned either to receive 500?mL of coffee enema for 10 minutes or to consume 180?mL of ready-to-drink coffee beverage. After a washout period of at least 10 days, all the subjects were switched to receive the alternate coffee procedure. Blood samples were collected immediately before and at specific time points until 12 hours after coffee administration in each phase. The mean caffeine content in both the coffee solution prepared for the coffee enema and the ready-to-drink coffee beverage was not statistically different. The Cmax and AUC of caffeine obtained from the coffee enema were about 3.5 times significantly less than those of the coffee consumed orally, despite having slightly but statistically faster Tmax. The t1/2 of caffeine obtained following both coffee procedures did not statistically differ. In summary, the relative bioavailability of caffeine obtained from the coffee enema was about 3.5 times significantly less than those of the coffee consumed orally.

Tosri, Nisanuch; Rojanasthien, Noppamas; Srichairatanakool, Somdet; Sangdee, Chaichan

2013-01-01

117

Pharmacokinetics of Caffeine following a Single Administration of Coffee Enema versus Oral Coffee Consumption in Healthy Male Subjects.  

PubMed

The objective of this study was to determine the pharmacokinetics of caffeine after single administration of a coffee enema versus coffee consumed orally in healthy male subjects. The study design was an open-label, randomized two-phase crossover study. Eleven healthy subjects were randomly assigned either to receive 500?mL of coffee enema for 10 minutes or to consume 180?mL of ready-to-drink coffee beverage. After a washout period of at least 10 days, all the subjects were switched to receive the alternate coffee procedure. Blood samples were collected immediately before and at specific time points until 12 hours after coffee administration in each phase. The mean caffeine content in both the coffee solution prepared for the coffee enema and the ready-to-drink coffee beverage was not statistically different. The C max and AUC of caffeine obtained from the coffee enema were about 3.5 times significantly less than those of the coffee consumed orally, despite having slightly but statistically faster T max. The t 1/2 of caffeine obtained following both coffee procedures did not statistically differ. In summary, the relative bioavailability of caffeine obtained from the coffee enema was about 3.5 times significantly less than those of the coffee consumed orally. PMID:23533801

Teekachunhatean, Supanimit; Tosri, Nisanuch; Rojanasthien, Noppamas; Srichairatanakool, Somdet; Sangdee, Chaichan

2013-03-04

118

Medicare Outpatient Physical Therapy and Comprehensive Outpatient Rehabilitation Facility Manual.  

National Technical Information Service (NTIS)

The manual makes available to the outpatient physical therapy provider informational and procedural material needed for the prompt and accurate filing of claims for services furnished under the provisions of the Health Insurance for the Aged Act (Medicare...

1987-01-01

119

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

PubMed

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

Bowkett, Brendon Douglas; Kelly, E W

2009-05-20

120

Intramural extravasation of barium simulating carcinoma of the rectum  

Microsoft Academic Search

This report describes two patients found to have barium granuloma of the rectum. The lesions appeared as indurated, ulcerated\\u000a rectal masses that resembled carcinoma on endoscopic examination. Deep mucosal biopsy results demonstrated no malignancy and\\u000a barium sulfate crystals in tissue macrophages. Radiographs showed persistent soft-tissue barium in the rectum. Past reports\\u000a of barium granuloma have described ulcerated or polypoid masses

John E. Phelps; Robert A. Sanowski; Richard A. Kozarek

1981-01-01

121

Improved spectrophotometric analysis of barium styphnate  

SciTech Connect

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.

Brown, N E; Blasi, J A

1983-01-01

122

Particulate barium fluxes and their relationships to biological productivity  

Microsoft Academic Search

To understand better the processes that control the transport of particulate barium through the water column and its preservation in marine sediments, we measured particulate barium fluxes along an equatorial transect at 140W using moored sediment traps. The fluxes of barium correlate strongly with the fluxes of organic carbon; however, this relationship is non-linearhigher carbon fluxes have proportionately less associated

Jack Dymond; Robert Collier

1996-01-01

123

Barium titanate fabricated from fur-fibres  

Microsoft Academic Search

Long-fibrous barium titanate (BaTiO3) particles were prepared by a hydrothermal reaction of potassium titanate hydrate (2K2O11TiO23H2O) and barium hydroxide (Ba(OH)2). Effects of preparation conditions on crystal structure and powder morphology were examined. Fur-fibres of K2O4TiO2, 110 mm long and 1100 ?m in diameter, were obtained by heating a mixture of K2CO3 and TiO2 powders at 1000 C for 100 h.

Yoshinobu Ohara; Masaru Miyayama; Tadao Shimizu; Hiroaki Yanagida

1996-01-01

124

Minimal preparation computed tomography instead of barium enema\\/colonoscopy for suspected colon cancer in frail elderly patients: an outcome analysis study  

Microsoft Academic Search

AIM: To evaluate the efficacy of minimal preparation computed tomography (MPCT) in diagnosing clinically significant colonic tumours in frail, elderly patients.MATERIALS AND METHODS: A prospective study was performed in a group of consecutively referred, frail, elderly patients with symptoms or signs of anaemia, pain, rectal bleeding or weight loss. The MPCT protocol consisted of 1.5 l Gastrografin 1% diluted with

S. M Kealey; J. D Dodd; P. M MacEneaney; R. G Gibney; D. E Malone

2004-01-01

125

STABILIZED BARIUM TITANATE CERAMICS FOR CAPACITOR DIELECTRICS  

Microsoft Academic Search

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

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

1963-01-01

126

Prospects for Barium Tagging in Gaseous Xenon  

Microsoft Academic Search

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

D. Sinclair; E. Rollin; J. Smith; A. Mommers; N. Ackerman; B. Aharmim; M. Auger; P. S. Barbeau; C. Benitez-Medina; M. Breidenbach; A. Burenkov; S. Cook; A. Coppens; T. Daniels; R. DeVoe; A. Dobi; M. J. Dolinski; K. Donato; Fairbank W. Jr; J. Farine; G. Giroux

2012-01-01

127

Low Temperature Thermal Expansion of Barium Ferrite.  

National Technical Information Service (NTIS)

The linear thermal expansion of polycrystalline barium ferrite, BaFe12O19, was measured from 76 to 293 K both parallel and perpendicular to the magnetization direction. An anisotropy of about 15-20% was observed. The results match well the available data ...

A. F. Clark W. M. Haynes V. A. Deason R. J. Trapani

1975-01-01

128

Deflocculants for Tape Casting Barium Titanate Dielectrics.  

National Technical Information Service (NTIS)

The first part of this study has been directed towards understanding the mechanisms of dispersion for barium titanate in a methylathyl ketone-ethanol system using a commercial phosphate ester dispersant. The dispersant was found to be very effective in lo...

W. R. Cannon

1986-01-01

129

Deflocculants for Tape Casting Barium Titanate Dielectrics.  

National Technical Information Service (NTIS)

A typical nonaqueous tape casting system based on a commercial acrylic binder was studied to understand the system in more depth. The following conclusions were drawn: The best surfactants for dispersing barium titanate in the MEK-ethanol solvent system a...

W. R. Cannon

1988-01-01

130

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

Code of Federal Regulations, 2010 CFR

...subject to the outpatient prospective payment system. 419.21 Section 419.21...MEDICARE PROGRAM PROSPECTIVE PAYMENT SYSTEM FOR HOSPITAL OUTPATIENT DEPARTMENT...Hospital Outpatient Prospective Payment System § 419.21 Hospital...

2009-10-01

131

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

Code of Federal Regulations, 2010 CFR

...subject to the outpatient prospective payment system. 419.21 Section 419.21...MEDICARE PROGRAM PROSPECTIVE PAYMENT SYSTEM FOR HOSPITAL OUTPATIENT DEPARTMENT...Hospital Outpatient Prospective Payment System § 419.21 Hospital...

2010-10-01

132

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

Code of Federal Regulations, 2010 CFR

...hospital outpatient prospective payment system. 419.22 Section 419.22...MEDICARE PROGRAM PROSPECTIVE PAYMENT SYSTEM FOR HOSPITAL OUTPATIENT DEPARTMENT...Hospital Outpatient Prospective Payment System § 419.22 Hospital...

2010-10-01

133

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

Code of Federal Regulations, 2010 CFR

...hospital outpatient prospective payment system. 419.22 Section 419.22...MEDICARE PROGRAM PROSPECTIVE PAYMENT SYSTEM FOR HOSPITAL OUTPATIENT DEPARTMENT...Hospital Outpatient Prospective Payment System § 419.22 Hospital...

2009-10-01

134

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

PubMed

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

Pera, Miguel; Pars, David; Pascual, Marta; Prez, Marta; Caete, Nuria; Snchez de la Blanca, M Isabel; Andru, Montserrat; Grande, Luis

2006-12-01

135

Simulation of outpatient appointment systems  

Microsoft Academic Search

An experimental computer program is described which simulates appointment systems employed by outpatient departments of hospitals. Both major kinds of appointment systemsindividual and blockcan be simulated. The purpose of the Simulator is to enable the user to evaluate the effectiveness of alternative appointment systems in a given clinical environment.

Jesse H. Katz

1969-01-01

136

Outpatients on mechanical circulatory support  

Microsoft Academic Search

BackgroundAs waiting periods for heart transplantation have lengthened, the application of long-term mechanical circulatory support (MCS) has become more common in patients presenting with cardiogenic shock. Anticipating increased long-term MCS, a policy to discharge patients home has been instituted. This study compares the results of outpatient on MCS to a group of patients remaining hospitalized.

Thorsten N. H Drews; Matthias Loebe; Michael J Jurmann; Yuguo Weng; Christoph Wendelmuth; Roland Hetzer

2003-01-01

137

High-field conduction in barium titanate  

NASA Astrophysics Data System (ADS)

We present current-voltage studies of very thin (~77 nm) barium titanate single crystals up to 1.3 GV/m applied field. These show that the mechanism of leakage current at high fields is that of space charge limited conduction (SCLC) in a regime with a continuous distribution of traps, according to the original model of Rose [Phys. Rev. 97, 1538 (1955)]. This study represents a factor of 5 in field compared with the early studies of BaTiO3 conduction [A. Branwood et al., Proc. Phys. Soc. London 79, 1161 (1962)]. Comparison is also given with ceramic multilayer barium titanate capacitors, and with variable range hopping [B. I. Shklovskii, Sov. Phys. Semicond. 6, 1964 (1973)], reported in SrTiO3 films [D. Fuchs, M. Adam, and R. Schneider, J. Phys. IV France 11, 71 (2001)].

Morrison, F. D.; Zubko, P.; Jung, D. J.; Scott, J. F.; Baxter, P.; Saad, M. M.; Bowman, R. M.; Gregg, J. M.

2005-04-01

138

Electrical properties of polycrystalline PTCR barium titanate  

Microsoft Academic Search

Semiconducting n-type barium titanate with a positive temperature coefficient of resistance (PTCR) has been made by doping BaTiO3 with 0.4 mol% Ho2O3. The d.c. resistivity, a.c. resistivity (1.2 kHz) and relative permittivity (1.2 kHz) at different temperatures between room temperature and 523 K have been measured. The high relative permittivity and the PTCR effect are attributed to the existence of

M. A. A. Issa

1992-01-01

139

Densities of liquid metals: calcium, strontium, barium  

Microsoft Academic Search

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 ? 950C, ?(Sr) = 2.5547 ? 2.83 10 T(C) from

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

1977-01-01

140

Prospects for Barium Tagging in Gaseous Xenon  

NASA Astrophysics Data System (ADS)

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.

Sinclair, D.; Rollin, E.; Smith, J.; Mommers, A.; Ackeran, N.; Aharmin, B.; Auger, M.; Barbeau, P. S.; Benitez-Medina, C.; Breidenbach, M.; Burenkov, A.; Cook, S.; Coppens, A.; Daniels, T.; DeVoe, R.; Dobi, A.; Dolinski, M. J.; Donato, K.; Fairbank, W., Jr.; Farine, J.; Giroux, G.; Gornea, G.; Graham, K.; Gratta, G.; Green, M.; Hagemann, C.; Hall, C.; Hall, K.; Hallman, D.; Hargrove, C.; Herrin, S.; Kaufman, L. K.; Leonard, D. S.; LePort, F.; Mackay, D.; MacLennan, R.; Mong, B.; Montero Dez, M.; Mller, A. R.; Neilson, R.; Niner, E.; Odian, A.; O'Sullivan, K.; Ouellet, C.; Piepke, A.; Pocar, A.; Prescott, C. Y.; Pushkin, K.; Rowson, P. C.; Slutsky, S.; Stekhanov, V.; Twelker, K.; Voskanian, N.; Vuilleumier, J.-L.; Wichoski, U.; Wodin, J.; Yang, L.; Yen, Y.-R.

2011-08-01

141

Electrical properties of barium-borosilicate glasses  

Microsoft Academic Search

Bulk and thin-blown films of barium-borosilicate glass were prepared and their electrical conduction properties at high and\\u000a low fields were measured as functions of temperature. The electrical conductivity is an exponential function of inverse temperature\\u000a at high temperatures with an activation energy in the range 1.0 to 1.4 eV, depending on composition. The conduction process\\u000a is believed to involve polarons

G. R. Moridi; A. Nouruzi; C. A. Hogarth

1991-01-01

142

Aqueous processing of barium titanate powders  

Microsoft Academic Search

In many modern electronic devices, multi-layer ceramic capacitors (MLCCs) are used in large quantities. For a greater volume efficiency of MLCCs, current efforts include thinner dielectric layers and a larger number of layers in a given volume, togethe r with embedded-capacitor design. All of these require a smaller particle size of the raw ceramic material, barium titanate (BaTiO3) powders, with

B. I. Lee; M. Wang; D. Yoon; M. Hu

2003-01-01

143

Outpatient ureteroscopy: predictive factors for postoperative events  

Microsoft Academic Search

Objectives. To identify risk factors that can predict the postoperative events of outpatient ureteroscopy.Methods. The data of 329 consecutive patients who underwent outpatient ureteroscopy from January 1996 to July 2000 were analyzed. Patient selection for outpatient surgery was based solely on their general medical status and social factors. Eighty-three percent of the procedures were therapeutic ureteroscopy. The reported postoperative events

M. C Cheung; F Lee; Y. L Leung; B. B. W Wong; S. M Chu; P. C Tam

2001-01-01

144

Prospective Payment and Medicare Hospital Outpatient Care  

Microsoft Academic Search

The Balanced Budget Act of 1997 established the Medicare Outpatient Prospective Payment System (OPPS) effective August 2000. Before 2000, Medicare reimbursed hospitals the actual costs incurred in outpatient care delivery. Under OPPS, Medicare classifies most outpatient services (including emergency room or ER services) into approximately 800 ambulatory payment classifications (APC) based on clinical and cost similarity. Regardless of the actual

Daifeng He; Jennifer Mellor

2010-01-01

145

OUTPATIENT COMMITMENT A Therapeutic Jurisprudence Analysis  

Microsoft Academic Search

This article analyzes the legal and therapeutic jurisprudence considerations raised by outpatient commitment. Although older forms of outpatient commitment have both legal and therapeutic advantages, preventive outpatient commitment raises serious legal problems and potential antitherapeutic consequences that may outweigh its claimed therapeutic value. As a result, alternatives are proposed, including wider availability of community treatment and outreach and case management

Bruce J. Winick

2003-01-01

146

Development of barium tagging technology for EXO  

NASA Astrophysics Data System (ADS)

The Enriched Xenon Observatory (EXO) is a series of experiments designed to search for the neutrinoless double beta decay of Xenon-136. The first experiment, known as EXO-200, is comprised of a liquid xenon TPC containing 200 kg of xenon enriched to 80% in Xenon-136 and is nearing completion. To suppress possible radioactive backgrounds, the EXO collaboration is also pursuing the development of a new technique to identify the production of the barium daughter ions produced by double beta decay. For this purpose, a linear radio-frequency ion trap has been constructed. Individual barium ions are trapped in this helium or argon buffer gas-filled trap and observed with a high signal-to-noise ratio by resonance fluorescence. Furthermore, two ion transfer methods are under parallel development, both involving the capture and transport of the ions on the surface of a specially designed tip. This talk will present the results obtained in the trapping of single buffer gas-cooled barium ions and the transfer of ions using a cryogenic tip, and our plans for an ion transfer tip using resonance ionization spectroscopy.

Montero Diez, Maria

2008-04-01

147

Rapid barium removal in the Delaware estuary  

SciTech Connect

Six profiles of dissolved barium covering the entire salinity range of the Delaware River and Bay estuary from March through September 1996 were collected and analyzed. The profiles are similar to one another in both shape and magnitude except for one attribute. A sudden ({le} 24 days), nearly complete (>90%) removal of dissolved Ba in midestuary occurs in mid-May followed by an 80% recovery in early June. This removal appears to be temporally and spatially coupled to the end of the spring bloom. Based on such episodic behavior, and on recent work with flocculation of diatom exudates, the authors conclude that the Ba depletion is caused by barite precipitation in the estuary during the late stages of the bloom. This would imply that lower estuary and inner coastal margin sediments associated with eutrophic estuaries receive a seasonal pulse of barite. The suddenness of this event also implies that sedimentary barite is strongly influenced by high productivity events. Comparison of the riverine Ba concentration with the effective riverine end member after desorptive barium release yields an estimated 30--40 nM Ba available from the suspended sediments as they enter the estuary. This estimate is supported by excess barium in unfiltered samples over filtered samples taken from the river and also by calculations done elsewhere.

Stecher, H.A. III [Univ. of Delaware, Lewes, DE (United States). College of Marine Studies]|[Univ. of Delaware, Newark, DE (United States). Dept. of Geology; Kogut, M.B. [Univ. of Washington, Seattle, WA (United States). School of Oceanography

1999-04-01

148

Outpatient Diverticulitis: Mild or Myth?  

PubMed Central

Background Diverticulitis is considered common in the outpatient population, with mild variants of described diagnostic criteria: left lower quadrant pain, fever, and leukocytosis. Here, expected criteria utilization among outpatients with a possible diagnosis of diverticulitis is assessed. Study Design Primary care acute clinic visits in 2008 for diverticulitis (ICD-9 562.11/562.13) or left lower quadrant pain (789.04) were identified among patients ?40 years old. Encounters were reviewed through structured manual chart abstraction, and evaluated for diagnostic accuracy compared to expected criteria. Analysis included inter-rater reliability (kappa tests) and descriptive frequencies by diagnosis code and diverticulitis rating (?2-tests). Results 376 acute visits were identified with codes for diverticulitis (n=97) or left lower quadrant pain (n=279). High inter-rater reliability was demonstrated for key clinical variables (kappa=0.841.0). Left lower quadrant pain was reported in >75% of patients, while temperature and white blood cell count data were frequently unavailable. Lack of these expected criteria resulted in low diagnostic accuracy ratings ("No/Unlikely" 53.6% diverticulitis, 88.2% left lower quadrant pain, p<0.001). Conclusions This investigation raises concern for low accuracy in the outpatient diagnosis of diverticulitis due to inconsistent use of expected criteria, suggesting a smaller population with true diverticulitis than previously anticipated, or lack of criteria applicability in this setting.

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

2013-01-01

149

[Outpatient chemotherapy for lung cancer].  

PubMed

In order to maintain the QOL in lung cancer patients and also save on medical costs, chemotherapy should be performed on an outpatient basis as much as possible. If the performance status is good and their residence is nearby, then not only in the case of small cell lung cancer or unresectable non-small cell lung cancer, but also including postoperative adjuvant chemotherapy for non-small cell lung cancer, in all such suitable cases, chemotherapy can be performed on an outpatient basis. For example, by performing outpatient chemotherapy in moderate amounts for older people, the survival can be improved while maintaining the QOL. However,a single dose of cisplatin 60 to 80 mg/m(2) requires a high volume iv infusion, and the first chemotherapy treatment needs to be carried out in the hospital for nausea and vomiting control. For a regimen of combined anticancer drugs other than cisplatin and including carboplatin, such as paclitaxel, docetaxel, irinotecan, gemcitabine or vinorelbine, the required iv time is short, side effects such as nausea or vomiting are less severe,and it is easily performed on an outpatient basis. An oral anticancer drug, gefitinib, or S-1 can also be an effective choice for non-small cell lung cancer. Since lung cancer patients tend to be susceptible to obstructive pneumonia or pneumonia from opportunistic infections, these need particular attention at the time of neutropenia. In addition, strict caution is required in order to prevent prescription or medication errors, or medical accidents such as leakage of the intravenous drip. If severe side effects occur, then a system must be prepared in which the patient can make contact promptly in emergency situations and thus can be hospitalized as necessary. Outpatient chemotherapy for lung cancers is increasing in Japan, however, there are many issues including insufficient staff, overworked staff, or situations where home nursing care places a heavy burden on the family. The assignment of sufficient medical treatment fees, the rationalization of work responsibilities or further development of home assistance systems are therefore eagerly anticipated. PMID:17431337

Yoneda, Shuichi

2007-04-01

150

Composition and structure measurements in an ionospheric barium cloud  

NASA Astrophysics Data System (ADS)

A 48 kg barium payload was launched from Eglin Air Force Base, Florida on 12 December 1980 at 2311 GMT and detonated at 183.7 km. At 2342:50.25 GMT, a second rocket, instrumented with an ion mass spectrometer and pulsed plasma probes, was fired to traverse the barium cloud. Composition, ion density, and structure measurements were acquired up to 241.2 km in both the natural and disturbed ionosphere. The rocket penetrated the barium cloud between 147 and 184 km. In addition to the Ba+, Ba++ produced by H Lyman alpha ionization, and Ca+, an impurity in the barium were detected in the cloud. A peak barium ion concentration of about 6,000,000 ions cu cm was measured at 161 km where the ionospheric NO+ and O2+ ions were essentially eliminated by large recombination loss. The bottom side of the barium cloud had a relatively smooth structure while the top side showed significant density fluctuations. The first experimental evidence of a theoretically predicted E region 'image cloud' was found in the form of an enhanced NO+ layer just below the barium cloud. Unexplained wave-like density variations in O+, NO+, and O2(+) also were seen above the barium cloud to 195 km. A quantitative estimate of the outgassing water vapor concentrations near the payload's surface was made using the fast change transfer rate coefficient for O+ + H2O yields H2O+ + O that created the observed water vapor ions.

Narcisi, R.; Tracinski, E.; Federico, G.; Wlodyka, L.; Bench, P.

1981-12-01

151

A study of positional disorder in strontium barium niobate  

Microsoft Academic Search

The first systematic examination of trends in the site occupancies of strontium and barium ions in strontium barium niobate (SBN) at three compositions across the phase range is presented. X-ray powder diffraction and Rietveld structure refinement were used to obtain refined structures for SBN. Some problems were encountered in the structure refinement due to the domain structure in the material.

M. P. Trubelja; E. Ryba; D. K. Smith

1996-01-01

152

Acute barium intoxication following ingestion of ceramic glaze.  

PubMed Central

A case of deliberate overdose of barium sulphide in a psychiatric setting is presented, with resulting flaccid paralysis, malignant arrhythmia, respiratory arrest and severe hypokalaemia, but ultimately with complete recovery. The degree of paralysis appears to be related directly to serum barium levels. The value of early haemodialysis, particularly with respiratory paralysis and hypokalaemia, is emphasised.

Thomas, M.; Bowie, D.; Walker, R.

1998-01-01

153

SEPARATION OF RADIUM AND BARIUM BY ION EXCHANGE ELUTION  

Microsoft Academic Search

Radium can be separated from barium-radium mixtures in ratios as high as ; 4440to 1 by a single elution from a cation exchange resin. Bariuim elution ; characteristics from Dowex 50 resin, position of elution maxima, and maximum ; barium loadings are correlated with citrate concentration and pH by the use of ; citrate complex equilibria, Ammonium citrate, 0.32M at

W. H. Power; H. W. Kirby; W. C. McCluggage; G. D. Nelson; J. H. Jr. Payne

1959-01-01

154

Thermal decomposition of (BaTi) citrates into barium titanate  

Microsoft Academic Search

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

D. Hennings; W. Mayr

1978-01-01

155

Barium in Teeth as Indicator of Body Burden.  

National Technical Information Service (NTIS)

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

R. G. Miller J. D. B. Featherstone M. E. J. Curzon T. S. Mills C. P. Shields

1985-01-01

156

Europium-doped barium bromide iodide  

SciTech Connect

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

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

2009-10-21

157

Barium silicate films for integrated optical circuits.  

PubMed

This paper describes the preparation and properties of rf sputtered barium silicate films that are suitable for use as transmission media in integrated optical circuits. It is shown that the films, which can be produced with a wide range of refractive indices by suitable selection of the ratio of the target constituents, exhibit low optical attenuation. The techniques used to deposit the films and the effect on loss of a number of parameters including pressure, film thickness, and substrate bias are discussed. PMID:20125380

Goell, J E

1973-04-01

158

Scattering lengths of calcium and barium isotopes  

SciTech Connect

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

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

2011-11-15

159

Rectal perforations and fistulae secondary to a glycerin enema: closure by over-the-scope-clip.  

PubMed

Rectal perforations due to glycerin enemas (GE) typically occur when the patient is in a seated or lordotic standing position. Once the perforation occurs and peritonitis results, death is usually inevitable. We describe two cases of rectal perforation and fistula caused by a GE. An 88-year-old woman presented with a large rectal perforation and a fistula just after receiving a GE. Her case was further complicated by an abscess in the right rectal wall. The second patient was a 78-year-old woman who suffered from a rectovesical fistula after a GE. In both cases, we performed direct endoscopic abscess lavage with a saline solution and closed the fistula using an over-the-scope-clip (OTSC) procedure. These procedures resulted in dramatic improvement in both patients. Direct endoscopic lavage and OTSC closure are very useful for pararectal abscess lavage and fistula closure, respectively, in elderly patients who are in poor general condition. Our two cases are the first reports of the successful endoscopic closure of fistulae using double OTSCs after endoscopic lavage of the debris and an abscess of the rectum secondary to a GE. PMID:22791955

Mori, Hirohito; Kobara, Hideki; Fujihara, Shintaro; Nishiyama, Noriko; Kobayashi, Mitsuyoshi; Masaki, Tsutomu; Izuishi, Kunihiko; Suzuki, Yasuyuki

2012-06-28

160

Evaluation of barium hydroxide treatment efficacy on a dolomitic marble.  

PubMed

The Arch of Peace, by Luigi Cagnola, is one of the most famous neoclassical monuments in Milan. It has been subjected to conservative intervention in 1998. In the present paper the efficacy of the consolidation by means of barium hydroxide has been evaluated. The stone material showed severe degradation phenomena as: erosion, pulverisation, exfoliation. The analytical data acquired through X-ray diffraction (XRD), infrared spectrophotometry (FTIR) and scanning electron microscopy (SEM-EDX), allowed to compare the conditions of stone before and after the treatment with barium hydroxide. The presence of barium has been put in evidence mainly on the surface as barium sulphate, whereas barium is only sporadically present within the thickness of the decayed material. The treatment was judged not satisfying and its inefficacy is, most probably, due to a not suitable cleaning procedure carried out before the consolidation. PMID:11836959

Toniolo, L; Colombo, C; Realini, M; Peraio, A; Positano, M

161

How to Perform and Interpret Timed Barium Esophagogram  

PubMed Central

Timed barium esophagogram (TBE) is a simple and objective method for assessing the esophageal emptying. The technique of TBE is similar to usual barium swallow with some modifications, which include taking multiple sequential films at pre-decided time interval after a single swallow of a fixed volume of a specific density barium solution. While many authors have used height and width of the barium column to assess the esophageal emptying, others have used the area of the barium column. TBE is being used in patients with suspected or confirmed achalasia and to follow-up those who have been treated with pneumatic dilation or myotomy. This review discusses technique of performing TBE, interpretation and its utility in clinical practice.

Gupta, Mahesh; Ghoshal, Uday C

2013-01-01

162

Leg symptoms in outpatient veterans.  

PubMed Central

In a survey of outpatients at the Denver Veterans Affairs Medical Center for common leg symptoms--515 questionnaires returned in a 3-week period--56% reported nocturnal leg cramps, 29% reported the restless leg syndrome, and 49% reported symptoms of peripheral neuropathy. Only 33% of patients had no symptoms relating to their legs. Patients often did not report these symptoms to their physician but were more likely to do so if the symptoms were frequent. Conditions especially related to leg symptoms were hypertension, peripheral vascular disease, coronary artery disease, cerebrovascular disease, kidney disease, and hypokalemia. Most patients did not receive effective therapy for these symptoms.

Oboler, S. K.; Prochazka, A. V.; Meyer, T. J.

1991-01-01

163

Atraumatic Cervical Passage At Outpatient Hysteroscopy  

Microsoft Academic Search

Objective:To evaluate the efficacy of topical anesthesia routinely administered to reduce discomfort and the need for additional local anesthesia during outpatient hysteroscopy.Design:Comparative observational study.Setting:Outpatient hysteroscopy clinic in a University hospital.Patient(s):Three hundred patients undergoing outpatient hysteroscopy.Intervention(s):Application of lidocaine spray both to the surface of the cervix and into the cervical canal before performing hysteroscopy.Main Outcome Measure(s):The discomfort during passage of the

Fritz Wieser; Christine Kurz; Ren Wenzl; Alexander Albrecht; Johannes C Huber; Fritz Nagele

1998-01-01

164

Proton conductivity of potassium doped barium zirconates  

SciTech Connect

Potassium doped barium zirconates have been synthesized by solid state reactions. It was found that the solubility limit of potassium on A-sites is between 5% and 10%. Introducing extra potassium leads to the formation of second phase or YSZ impurities. The water uptake of barium zirconates was increased even with 5% doping of potassium at the A-site. The sintering conditions and conductivity can be improved significantly by adding 1 wt% ZnO during material synthesis. The maximum solubility for yttrium at B-sites is around 15 at% after introducing 1 wt% zinc. The conductivity of Ba{sub 0.95}K{sub 0.05}Zr{sub 0.85}Y{sub 0.11}Zn{sub 0.04}O{sub 3-{delta}} at 600 deg. C is 2.2x10{sup -3} S/cm in wet 5% H{sub 2}. The activation energies for bulk and grain boundary are 0.29(2), 0.79(2) eV in wet 5% H{sub 2} and 0.31(1), 0.74(3) eV in dry 5% H{sub 2}. A power density of 7.7 mW/cm{sup 2} at 718 deg. C was observed when a 1 mm thick Ba{sub 0.95}K{sub 0.05}Zr{sub 0.85}Y{sub 0.11}Zn{sub 0.04}O{sub 3-{delta}} pellet was used as electrolyte and platinum electrodes. - Graphical abstract: Potassium doped barium zirconates have been synthesized by solid state reactions. It was found that the solubility limit of potassium on A-sites is between 5% and 10 %. The sintering conditions and conductivity can be improved significantly by adding 1 wt% ZnO during material synthesis. Five percent doping of potassium at A-site can double the total conductivity.

Xu Xiaoxiang [School of Chemistry, University of St. Andrews, Fife KY16 9ST (United Kingdom); Tao Shanwen, E-mail: s.tao@hw.ac.u [School of Chemistry, University of St. Andrews, Fife KY16 9ST (United Kingdom); Department of Chemistry, Heriot-Watt University, Edinburgh EH14 4AS (United Kingdom); Irvine, John T.S. [School of Chemistry, University of St. Andrews, Fife KY16 9ST (United Kingdom)

2010-01-15

165

Outpatient treatment of adult asthma.  

PubMed Central

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

Kleerup, E C; Tashkin, D P

1995-01-01

166

Migration and redistribution of oxygen vacancy in barium titanate ceramics  

NASA Astrophysics Data System (ADS)

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

Chen, L.; Xiong, X. M.; Meng, H.; Lv, P.; Zhang, J. X.

2006-08-01

167

A high-altitude barium radial injection experiment  

NASA Astrophysics Data System (ADS)

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.

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

1980-12-01

168

SMS text messaging improves outpatient attendance  

Microsoft Academic Search

Objective: To evaluate the operational and financial efficacy of sending short message serv- ice (SMS) text message reminders to the mobile telephones of patients with scheduled outpatient clinic appointments. Design: Cohort study with historical control. Setting: Royal Children's Hospital, Melbourne, Victoria. Patients: Patients who gave a mobile telephone contact number and were scheduled to attend an outpatient clinic at the

Sean R Downer; John G Meara; Annette C Da Costa; Kannan Sethuraman

2006-01-01

169

A comparison of inpatient and outpatient ASCT  

Microsoft Academic Search

Outpatient high-dose chemotherapy and autologous stem cell transplantation (ASCT) has been shown to be feasible in terms of physical morbidity and mortality outcomes, but few data exist on the psychosocial impact of delivering such aggressive therapy in this manner. The purpose of this observational study was to compare effects of inpatient (n = 20) and outpatient (n = 21) modes

N Summers; U Dawe; DA Stewart

2000-01-01

170

Synthesis and characterization of barium hexagonal ferrite  

NASA Astrophysics Data System (ADS)

Barium Hexagonal ferrite (BaFe12O19) was synthesized by a two step process, first by high-energy ball milling and then sintering the milled powder subsequently at 950C. The phase formation and morphology studies were carried out using X-ray Diffraction (XRD) and High Resolution Scanning Electron Microscopy (HRSEM) respectively. XRD results clearly show the phase purity and the good crystalline nature of BaFe12O19. The mean particle size was found to be 80 nm from the SEM image. The magnetic properties such as saturation magnetization and coercive field were calculated from the magnetization curve, which was obtained using Vibrating Sample Magnetometer (VSM). A possible relation between the magnetic hysteresis curve and the microstructure of the sintered sample has been investigated.

Manikandan, M.; Venkateswaran, C.

2013-02-01

171

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

PubMed Central

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

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

2012-01-01

172

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

PubMed

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

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

2012-01-01

173

38 CFR 17.161 - Authorization of outpatient dental treatment.  

Code of Federal Regulations, 2010 CFR

...2010-07-01 false Authorization of outpatient dental treatment. 17.161 Section 17.161...DEPARTMENT OF VETERANS AFFAIRS MEDICAL Dental Services § 17.161 Authorization of outpatient dental treatment. Outpatient dental...

2010-07-01

174

38 CFR 17.161 - Authorization of outpatient dental treatment.  

Code of Federal Regulations, 2010 CFR

...2009-07-01 false Authorization of outpatient dental treatment. 17.161 Section 17.161...DEPARTMENT OF VETERANS AFFAIRS MEDICAL Dental Services § 17.161 Authorization of outpatient dental treatment. Outpatient dental...

2009-07-01

175

42 CFR 410.60 - Outpatient physical therapy services: Conditions.  

Code of Federal Regulations, 2012 CFR

... 2012-10-01 false Outpatient physical therapy services: Conditions. 410...Health Services § 410.60 Outpatient physical therapy services: Conditions. (a...Medicare Part B pays for outpatient physical therapy services only if they are...

2012-10-01

176

42 CFR 410.59 - Outpatient occupational therapy services: Conditions.  

Code of Federal Regulations, 2010 CFR

...2009-10-01 false Outpatient occupational therapy services: Conditions... § 410.59 Outpatient occupational therapy services: Conditions...Part B pays for outpatient occupational therapy services only if they...

2009-10-01

177

42 CFR 410.59 - Outpatient occupational therapy services: Conditions.  

Code of Federal Regulations, 2010 CFR

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

2010-10-01

178

42 CFR 410.60 - Outpatient physical therapy services: Conditions.  

Code of Federal Regulations, 2010 CFR

...2009-10-01 false Outpatient physical therapy services: Conditions. 410...Services § 410.60 Outpatient physical therapy services: Conditions. ...Medicare Part B pays for outpatient physical therapy services only if they...

2009-10-01

179

42 CFR 410.60 - Outpatient physical therapy services: Conditions.  

Code of Federal Regulations, 2010 CFR

...2010-10-01 false Outpatient physical therapy services: Conditions. 410...Services § 410.60 Outpatient physical therapy services: Conditions. ...Medicare Part B pays for outpatient physical therapy services only if they...

2010-10-01

180

Microscopic Theory of the Phonon Frequencies in bcc Barium.  

National Technical Information Service (NTIS)

The phonon dispersion frequencies are calculated from first principles for bbc barium using a resonance pseudopotential model which incorporates the effect of s-d hybridization. It was also possible using this scheme to account for the anomalous feature o...

B. A. Oli

1988-01-01

181

Calculated emission rates for barium releases in space  

NASA Astrophysics Data System (ADS)

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.

Stenbaek-Nielsen, H. C.

1989-11-01

182

Composition and structure measurements in an ionospheric barium cloud  

Microsoft Academic Search

A 48 kg barium payload was launched from Eglin Air Force Base, Florida on 12 December 1980 at 2311 GMT and detonated at 183.7 km. At 2342:50.25 GMT, a second rocket, instrumented with an ion mass spectrometer and pulsed plasma probes, was fired to traverse the barium cloud. Composition, ion density, and structure measurements were acquired up to 241.2 km

R. Narcisi; E. Tracinski; G. Federico; L. Wlodyka; P. Bench

1981-01-01

183

Ultrafine Barium Titanate Powders via Microemulsion Processing Routes  

Microsoft Academic Search

Three processing routes have been used to prepare barium titanate powders, namely conventional coprecipitation, single-microemulsion coprecipitation using diether oxalate as the precipitant, and double-microemulsion coprecipita- tion using oxalic acid as the precipitant. A single-phase perovskite barium titanate was obtained when the double- microemulsion-derived oxalate precursor was calcined for 2 h at a temperature of as low as 550C, compared to

John Wang; Jiye Fang; Ser-Choon Ng; Leong-Ming Gan; Chwee-Har Chew; Xianbin Wang; Zexiang Shen

2004-01-01

184

The problem of heavy-element synthesis in barium stars  

NASA Astrophysics Data System (ADS)

An abundance analysis of the atmospheres of 33 stars, barium and normal G-K giants, is carried out using the differential model atmosphere method. Twenty barium stars which reveal a considerable enhancement of s-process elements exhibit slight depletions (about 0.2 dex) of Na, Mg, Mn, and Co; solar abundances for Si to Ni; and enhanced abundances (up to 1.5 dex) for Y to Eu. Mean parameters of the atmospheres are determined.

Zacs, L.

1991-07-01

185

Investigations on surface composition and microstructure of sintered barium titanate  

Microsoft Academic Search

The paper describes studies on surface atomic composition, microstructure and microarea elemental distribution in sintered\\u000a undoped as well as donor or acceptor doped polycrystalline barium titanate ceramics. The specimens examined are derived from\\u000a barium titanate powders synthesized by two different wet chemical procedures namely oxalate precursor route and gel-to-crystallite\\u000a conversion. The compositional analysis is carried out by backscattering spectrometry (BS)

Sanjiv Kumar; V. S. Raju; T. R. N. Kutty

2007-01-01

186

Catalytic combustion of methane on substituted barium hexaaluminates  

Microsoft Academic Search

A solgel method using metallic barium, aluminum alkoxides and metal nitrates has been used to synthesize barium hexaaluminate partially substituted by either manganese, iron or both metal ions. The ?-alumina structure was obtained by calcination under oxygen at 1200C. X-ray analysis revealed that formation of a pure single phase BaMxAl12?xO19 occurred up to x=4 for Fe, x=3 for Mn and

P Artizzu-Duart; J. M Millet; N Guilhaume; E Garbowski; M Primet

2000-01-01

187

Synthesis of nanocomposites comprising iron and barium hexaferrites  

Microsoft Academic Search

Composites of nanometre-sized ?-iron and barium hexaferrite phases, respectively, have been synthesized by the ceramic processing route. Pure barium hexaferrite (BaO6Fe2O3) was first of all prepared by calcinations of the precursor oxides at a maximum temperature of 1200C for 4h. By subjecting the resulting powder having particle size of the order of 1?m to a reduction treatment in the temperature

M. Pal; S. Bid; S. K Pradhan; B. K Nath; D. Das; D. Chakravorty

2004-01-01

188

Coprecipitation of uranium and thorium with barium sulfate  

Microsoft Academic Search

The coprecipitation behaviour of uranium or thorium with barium sulfate is investigated from the variation of yields with uranium or thorium concentration, acid and acidity, and amount of sodium and\\/or potassium sulfate. Uranium or thorium in quantities less than 1.5 mg is quantitatively coprecipitated with barium (5.9 mg) sulfate when using an optimum conditions. The chemical form of uranium in

T. Kimura; Y. Kobayashi

1985-01-01

189

42 CFR 482.54 - Condition of participation: Outpatient services.  

Code of Federal Regulations, 2011 CFR

...2011-10-01 false Condition of participation: Outpatient services. 482...CERTIFICATION CONDITIONS OF PARTICIPATION FOR HOSPITALS Optional Hospital... § 482.54 Condition of participation: Outpatient...

2011-10-01

190

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

Microsoft Academic Search

The purpose of the study was to compare the quality of stomach and small bowel marking\\/labeling using 1,350ml of low-density\\u000a barium alone (VoLumen) with 900ml of low-density barium and 450ml of water for 16-MDCT scans of the abdomen and pelvis and\\u000a assess cost benefits with the two protocols. In this IRB approved study, 80 consecutive patients scheduled for routine CECT

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

2008-01-01

191

Medicare Outpatient Physical Therapy Provider Manual. Revisions.  

National Technical Information Service (NTIS)

The manual makes available to the outpatient physical therapy provider informational and procedural material needed for the prompt and accurate filing of claims for services furnished under the provisions of the Health Insurance for the Aged Act (Medicare...

1986-01-01

192

Medicare Outpatient Physical Therapy Provider Manual. Revisions.  

National Technical Information Service (NTIS)

This manual makes available to the outpatient physical therapy provider informational and procedural material needed for the prompt and accurate filing of claims for services furnished under the provisions of the Health Insurance for the Aged Act (Medicar...

1985-01-01

193

Medicare Outpatient Physical Therapy Provider Manual. Revisions.  

National Technical Information Service (NTIS)

The manual makes available to the outpatient physical therapy provider informational and procedural material needed for the prompt and accurate filing of claims for services furnished under the provisions of the Health Insurance for the Aged Act (Medicare...

1987-01-01

194

Medicare Outpatient Physical Therapy Provider Manual.  

National Technical Information Service (NTIS)

This manual makes available to the outpatient physical therapy provider informational and procedural material needed for the prompt and accurate filing of claims for services furnished under the provisions of the Health Insurance for the Aged Act (Medicar...

1983-01-01

195

Medicare Outpatient Physical Therapy Provider Manual. Revisions.  

National Technical Information Service (NTIS)

The manual makes available to the outpatient physical therapy provider informational and procedural material needed for the prompt and accurate filing of claims for services furnished under the provisions of the Health Insurance for the Aged Act (Medicare...

1988-01-01

196

The case for mandatory outpatient treatment.  

PubMed

Research on the effectiveness of mandatory outpatient treatment, which is court-ordered mental health follow up, supports its use with individuals who have serious mental illness. Many states already have some kind of mandatory outpatient treatment in place, but it is often underused. Much of the criticism of mandatory outpatient treatment is based on the fact that research demonstrating its efficacy is limited and that its implementation infringes on individuals' rights. However, sufficient evidence can be found in the literature to support its use for some individuals with chronic mental illness living in the community. In addition, the ethical principles of beneficence, utilitarianism, and communitarianism support its use in some situations. Mandatory outpatient treatment is an ethical and effective method shown to be helpful with individuals who have mental illness and are nonadherent to treatment. Expanding its use in appropriate situations is in the best interest of those with serious mental illness and society in general. PMID:18293782

Cullen-Drill, Mary; Schilling, Kathleen

2008-02-01

197

Outpatient Mental Health Benefits in Rhode Island.  

National Technical Information Service (NTIS)

During the last several years considerable attention has been devoted to the need for public policies to influence the availability of outpatient mental health insurance coverage in Rhode Island. A number of experts have expressed opinions on this issue a...

1983-01-01

198

Continuous nerve blocks for outpatient knee surgery  

Microsoft Academic Search

In outpatient knee surgery, perineural catheter techniques are an important advance to further ensure a comfortable same-day discharge after procedures typically associated with significant pain. For outpatients, attention should be directed both to the multimodal treatment of pain as well as to the multimodal prophylaxis of postoperative nausea and\\/or vomiting. The ability to titrate local anesthetic doses to provide sensory-specific

Brian A Williams; Donna Spratt; Michael L Kentor

2004-01-01

199

Evaluation of Patient Satisfaction in Outpatient Pharmacy  

Microsoft Academic Search

Objective: To establish the level of satisfaction and dissatisfaction with the service received by patients attending the Outpatient Pharmacy regarding the care received. Method: Two-month long cross-sectional study. The study included all patients who had attended the Outpatient Pharmacy (OP) and had given their consent. Satisfaction was measured using a previously validated survey (Likert-type scale), with 5 possible closed answers

Juan Francisco Mrquez-Peir; Carmen Prez-Peir

200

Outpatient Opiate Detoxification Treatment with Buprenorphine  

Microsoft Academic Search

In an open study design, 50 opioid-dependent subjects (DSM-IV: 304.0) were investigated in a gradual detoxification treatment with buprenorphine. The study was performed at the drug addiction outpatient clinic of the Department of General Psychiatry at the University of Vienna. Subjects had to contact the outpatient clinic on a daily basis and buprenorphine was administered according to their clinical status.

K. Diamant; G. Fischer; C. Schneider; E. Lenzinger; L. Pezawas; S. Schindler; H. Eder

1998-01-01

201

Barium studies for detecting esophagopharyngeal reflux events.  

PubMed

Esophagopharyngeal reflux (EPR) is among the factors involved in the supraesophageal complications of reflux disease, and is diagnosed by the regurgitation of barium from the upper third of the esophagus into the pharynx in the absence of swallow during a videofluoroscopic swallowing study. EPR is detected in approximately 20% of patients undergoing these studies, and occurs in different clinical groups without disease-specific associations. The vast majority of patients with EPR show esophageal motor abnormalities on swallowing studies. Notably, prolonged esophageal clearing time is independently and strongly associated with EPR. Our data suggest that the oropharyngeal phase of deglutition is impaired in >50% of patients with both gastroesophageal reflux disease and EPR. In the subset of patients with EPR, oral abnormalities are mostly related to tongue function. Based on the data emerging from our videofluoroscopic swallowing studies, it seems plausible that EPR occurs as a result of an underlying esophageal motor dysfunction facilitated by an impaired oral deglutition. As a consequence, when examining patients for EPR, both esophageal and oropharyngeal abnormalities should be sought. PMID:12928088

Torrico, Silvia; Corazziari, Enrico; Habib, Fortune Irene

2003-08-18

202

Outpatient cardiac rehabilitation: the Austrian model.  

PubMed

Over the past decades undisputable evidence has accumulated identifying the panoply of beneficial effects of exercise training, smoking cessation, blood pressure lowering, glycaemic and lipid control, as well as psycho-social interventions on cardiovascular risk factors, the well-being, morbidity and mortality of patients with cardiac diseases with or without acute events. Nevertheless, despite all the evidence, insurance companies are more than hesitant to provide patients with an adequate infrastructure to allow outpatient cardiac rehabilitation in their community. Whereas some countries still favour in-hospital rehabilitation, others are on the verge of introducing cardiac rehabilitation for the first time. Thanks to the efforts of the Working Group of Outpatient Cardiac Rehabilitation of the Austrian Cardiac Society, detailed guidelines for outpatient cardiac rehabilitation have been introduced, which not only include aims, contents and duration of outpatient cardiac rehabilitation, but also requirements for staff, quality of care and infrastructure. As a result cardiac rehabilitation in Austria is currently undergoing a transition process from exclusive in-hospital cardiac rehabilitation to a more open approach of granting patients a choice between in-hospital and outpatient rehabilitation. Experience gained appears relevant to a great number of colleagues in many countries Europe - as well as worldwide. Since these guidelines were and still are the basis for implementing outpatient cardiac rehabilitation, they are presented in great detail, so that they may either be applied as is or simply stimulate discussion. PMID:22508693

Niebauer, Josef; Mayr, Karl; Tschentscher, Markus; Pokan, Rochus; Benzer, Werner

2012-04-16

203

Outpatient treatment for acute uncomplicated diverticulitis.  

PubMed

BACKGROUND: Traditionally, treatment of acute diverticulitis has mostly been based on inpatient care. The question arises whether these patients can be treated on an outpatient basis as the admissions for diverticular disease have been shown to be increasing every year. We studied whether outpatient treatment of acute uncomplicated diverticulitis is feasible and safe, and which patients could benefit from outpatient care. MATERIALS AND METHODS: A retrospective cohort study was carried out in two teaching hospitals using hospital registry codes for diverticulitis. All patients diagnosed with acute uncomplicated diverticulitis between January 2004 and January 2012, confirmed by imaging or colonoscopy, were included. Exclusion criteria were patients with recurrent diverticulitis, complicated diverticulitis (Hinchey stages 2, 3, and 4), and right-sided diverticulitis. Inpatient care was compared with outpatient care. Primary outcome was admission for outpatient care and the complication rate in both groups. Multivariate analysis was carried out to identify potential factors for inpatient care. RESULTS: Of 627 patients with diverticulitis, a total of 312 consecutive patients were identified with primary uncomplicated diverticulitis of the sigmoid colon; 194 patients had been treated as inpatients and 118 patients primarily as outpatients. In this last group, 91.5% had been treated successfully without diverticulitis-related complications or the need for hospital admission during a mean follow-up period of 48 months. CONCLUSION: Despite inherent patient selection in a retrospective cohort, ambulatory treatment of patients presenting with uncomplicated acute diverticulitis seems feasible and safe. In mildly ill and younger patients, hospital admission can be avoided. PMID:23636075

Unl, Ca?da?; Gunadi, Patrick M; Gerhards, Michael F; Boermeester, Marja A; Vrouenraets, Bart C

2013-04-30

204

The demand for hospital outpatient services.  

PubMed Central

In an investigation of the role played by hospital outpatient services in medical care delivery, objectives were to identify the factors which influence the demand for these services; and to determine the relationship between outpatient service volume and the availability and price of alternative sources of care, particularly office-based physicians and hospital inpatient services. Data were from a merged national data set containing population, socioeconomic, health services, manpower supply, and cost information. Two methods were used to examine demand for hospital outpatient services. The first replicated the earlier work by Davis and Russell using more recent (1978 versus 1969) and more geographically defined (Health Service Area versus state) data. The second extended this work, using the improved availability of data to estimate demand equations, distinguishing between emergency room and other outpatient visits. The results confirmed and extended the findings of earlier efforts. The level of hospital outpatient services appears related both to the availability and the price of other sources of care, as well as to insurance coverage and other factors. These findings have implications for reform of hospital outpatient reimbursement, for cost containment under Medicaid, and in related areas.

Gold, M

1984-01-01

205

Infection control and outpatient parenteral antibiotic therapy.  

PubMed

Outpatient procedures have become more complex, requiring outpatient providers to offer technical procedures in the home, office, and clinic. This shift in health care has brought about the need for staff members to become proficient in a variety of technical procedures that were once done only in the hospital setting. Outpatient i.v. therapy has caused home health care agencies, physicians' offices, and clinics to seek education and training regarding i.v. therapy and to develop basic infection-control guidelines and guidelines related to the insertion and maintenance of i.v. devices. The goals of the outpatient provider are to prevent i.v.-related complications and to provide quality patient care. These can be accomplished by strict adherence to sound infection-control guidelines and routine monitoring of procedure techniques and complications of care. Outpatient providers may wish to seek expertise and guidance from hospital infection-control personnel, infectious diseases specialists, or other infection-control consultants to meet the demands of the complexity of outpatient care. PMID:9888034

Wade, B H; Bush, S E

1998-12-01

206

Short chain fatty acid distributions of enema samples from a sigmoidoscopy population: an association of high acetate and low butyrate ratios with adenomatous polyps and colon cancer  

Microsoft Academic Search

We investigated the distribution of short chain fatty acids (SCFA) in enema samples taken from subjects before sigmoidoscopy as an indicator of possible microbial community differences between subjects subsequently diagnosed as normal or having colonic disorders. The major SCFA in all groups were acetic, propionic, and butyric acids. A significantly higher ratio of acetate to total SCFA and lower ratio

G A Weaver; J A Krause; T L Miller; M J Wolin

1988-01-01

207

Creating unstable velocity-space distributions with barium injections  

SciTech Connect

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

Pongratz, M.B.

1983-01-01

208

Acceleration of barium ions near 8000 km above an aurora  

NASA Astrophysics Data System (ADS)

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.

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

1984-12-01

209

Selectivity in biomineralization of barium and strontium.  

PubMed

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

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

2011-08-17

210

Barium uptake and adsorption in diatoms  

NASA Astrophysics Data System (ADS)

Using trace metal-defined culture conditions, we measured the cellular barium concentration in cultures of the diatom Thalassiosira weissflogii. In cultures with low Fe concentration, at a typical surface seawater Ba concentration of 35 to 40 nmol/L, the cellular Ba was 0.5 ?mol/mol P (0.04 ?g/g dw), much below all previously published values for phytoplankton. When the Fe concentration in the growth medium was increased, the measured "cellular" Ba increased proportionally to the particulate Fe. Under conditions of ferric hydroxide precipitation, similar particulate Ba concentrations were measured in the absence and the presence of cells for a given concentration of particulate Fe. Thus, the bulk of the particulate Ba in such experiments was not truly intracellular but adsorbed on precipitated Fe hydroxides associated with the cell surface. A similar mechanism likely explains the high cellular Ba concentrations reported by previous investigators who utilized relatively high ratios of Fe to EDTA concentrations in the growth medium, resulting in Fe precipitation. On the basis of our results, it seems highly unlikely that intracellular uptake by living phytoplankton explains the vertical flux of Ba in oceanic waters. But the adsorption of Ba on Fe hydroxides that is seen in laboratory experiments must also occur in the oceans and contribute to Ba transport in the upper part of the water column. To be significant, however, such a mechanism would require that the particles that transport Ba out of the surface have a markedly lower Ba/Fe ratio than is measured in the average suspended material.

Sternberg, Erika; Tang, Degui; Ho, Tung-Yuan; Jeandel, Catherine; Morel, Franois M. M.

2005-06-01

211

Phenotypic and Behavioral Defects Caused by Barium Exposure in Nematode Caenorhabditis elegans  

Microsoft Academic Search

To examine the possible phenotypic defects from barium exposure, a model organism, Caenorhabditis elegans, was chosen to analyze the multiple toxicities in barium-exposed animals. Endpoints of life span, body size, brood size,\\u000a generation time, head thrash, and body bend were selected for the assessment of barium toxicity. High concentrations (75?M\\u000a and 200?M) of barium exposure caused severe life-span defects. Body

D.-Y. Wang; Y. Wang

2008-01-01

212

Barium-borate-flyash glasses: As radiation shielding materials  

NASA Astrophysics Data System (ADS)

The attenuation coefficients of barium-borate-flyash glasses have been measured for ?-ray photon energies of 356, 662, 1173 and 1332 keV using narrow beam transmission geometry. The photon beam was highly collimated and overall scatter acceptance angle was less than 3. Our results have an uncertainty of less than 3%. These coefficients were then used to obtain the values of mean free path (mfp), effective atomic number and electron density. Good agreements have been observed between experimental and theoretical values of these parameters. From the studies of the obtained results it is reported here that from the shielding point of view the barium-borate-flyash glasses are better shields to ?-radiations in comparison to the standard radiation shielding concretes and also to the ordinary barium-borate glasses.

Singh, Sukhpal; Kumar, Ashok; Singh, Devinder; Thind, Kulwant Singh; Mudahar, Gurmel S.

2008-01-01

213

White dwarf kicks and implications for barium stars  

NASA Astrophysics Data System (ADS)

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

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

214

A high-altitude barium radial injection experiment  

NASA Astrophysics Data System (ADS)

On 16 March 1980 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 purpose of the experiment, named ``King Crab,'' was to advance knowledge of the instabilities, waves, and optical and magnetic effects produced. The TV images of the injection are spectacular, revealing three major regimes of expanding material 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 computer simulations show a similar rayed structure development due to an electrostatic instability.

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

215

Multiphoton laser ionization for energy conversion in barium vapor  

NASA Astrophysics Data System (ADS)

We have studied the ion detection of barium atoms in special heated ovens with a tungsten rod in the middle of the stainless steel tube. The tungsten rod was heated indirectly by the oven body heaters. A bias voltage between the cell body and the tungsten rod of 9 V was used to collect electrons, after the barium ions had been created. However, we could collect the electrons even without the bias voltage, although with ten times less efficiency. We studied the conditions for the successful bias-less thermionic signal detection using excimer/dye laser two-photon excitation of Rydberg states below and above the first ionization limit (two-photon wavelength at 475.79 nm). We employed a hot-pipe oven and heat-pipe oven (with inserted mesh) in order to generate different barium vapor distributions inside the oven. The thermionic signal increased by a factor of two under heat-pipe oven conditions.

Makdisi, Y.; Kokaj, J.; Afrousheh, K.; Mathew, J.; Nair, R.; Pichler, G.

2013-03-01

216

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

PubMed

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

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

2009-06-01

217

Design of a vapor source for cesium-barium thermionic converters  

Microsoft Academic Search

A simple and reliable combined cesium-barium source containing pure barium and a multilayer cesium + pyrographite compound is designed for thermionic converters. The source can regulate the cesium and barium vapor pressures at a single point in the converter chamber; if necessary, the cesium concentration in the pyrographite can be changed so as to make the cesium vapor pressure P(Cs)

I. G. Gverdtsiteli; A. G. Kaladarishvili; V. G. Kashiia

1985-01-01

218

Characterization of dielectric barium titanate powders prepared by homogeneous precipitation chemical reaction for embedded capacitor applications  

Microsoft Academic Search

Various articles have reported that a highly pure and uniform form of barium titanate can be prepared by homogeneous precipitation. However, most of these works emphasize the mechanism of thermal decomposition of barium titanyl oxalate tetrahydrate, and only a few have discussed morphology or particle size. The morphology and particles size of barium titanyl oxalate tetrahydrate are governed by reaction

Jyh-Ming Hwu; Wen-Huai Yu; Wei-Chun Yang; Yu-Wen Chen; Yeh-Yu Chou

2005-01-01

219

Mass barium carbonate poisoning with fatal outcome, lessons learned: a case series  

Microsoft Academic Search

INTRODUCTION: Barium, a heavy divalent alkaline metal, has long been known to cause human toxicity. The common mode is accidental ingestion and the common compound is Barium carbonate. Here we report an incident of food poisoning in 27 law enforcement personnel with rapidly developing sequelae and a high mortality due to ingestion of Barium carbonate contaminated flour. CASE PRESENTATION: One

Aniruddha Ghose; Abdullah Abu Sayeed; Amir Hossain; Ridwanur Rahman; Abul Faiz; Gofranul Haque

2009-01-01

220

40 CFR 721.10010 - Barium manganese oxide (BaMnO3).  

Code of Federal Regulations, 2010 CFR

...2009-07-01 2009-07-01 false Barium manganese oxide (BaMnO3). 721.10010...Chemical Substances § 721.10010 Barium manganese oxide (BaMnO3 ). (a...The chemical substance identified as barium manganese oxide (BaMnO3 )...

2009-07-01

221

40 CFR 721.10010 - Barium manganese oxide (BaMnO3).  

Code of Federal Regulations, 2010 CFR

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

2010-07-01

222

40 CFR 721.10010 - Barium manganese oxide (BaMnO3).  

Code of Federal Regulations, 2013 CFR

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

2013-07-01

223

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

Microsoft Academic Search

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

Franz Gingele; Andreas Dahmke

1994-01-01

224

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

Code of Federal Regulations, 2010 CFR

... 2010-10-01 2010-10-01 false Barium azide-50 percent or more water wet. 173...Other Than Class 1 and Class 7 § 173.182 Barium azide50 percent or more water wet. Barium azide50 percent or more water wet,...

2010-10-01

225

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

Code of Federal Regulations, 2010 CFR

... 2009-10-01 2009-10-01 false Barium azide-50 percent or more water wet. 173...Other Than Class 1 and Class 7 § 173.182 Barium azide50 percent or more water wet. Barium azide50 percent or more water wet,...

2009-10-01

226

Modifications of Pt\\/alumina combustion catalysts by barium addition I. Properties of fresh catalysts  

Microsoft Academic Search

Platinum was deposited onto pure alumina as well as on alumina modified by addition of 7 and 15 wt.-% barium. The alumina hydroxyl groups were neutralized by barium addition and the surface of the modified support had a basic character. The introduction of barium decreased the accessible platinum area because of a sintering of the metal particles associated with a

Valrie Labalme; Nathalie Benhamou; Nolven Guilhaume; Edouard Garbowski; Michel Primet

1995-01-01

227

Determination of Barium in Bottled Drinking Water by Graphite Furnace Atomic Absorption Spectrometry  

Microsoft Academic Search

In relation to the wide environmental spread of barium and to its cardiovascular effects, barium levels were determined by graphite furnace atomic absorption spectrometry in 60 different brands of bottled water marketed in Italy.Matrix interferences were investigated in order to evaluate the use of an analytical calibration function rather than the much more time consuming addition technique.The barium content ranged

F. Fagioli; C. Locatelli; E. Lanciotti; G. Vallone; D. Mazzotta; A. Mugelli

1988-01-01

228

CoPrecipitation of Radium and Barium Salts as a Function of Temperature and Acidity  

Microsoft Academic Search

Co-precipitation of radium and barium salts which accompanies the cooling of a solution results in the deposition of a percentage of radium largely in excess of that of barium. Under similar conditions of cooling the relative amounts of radium and barium deposited have been determined at different temperatures throughout the cooling process and curves have been plotted. Determinations of the

W. B. Pietenpol

1942-01-01

229

The biological production of marine suspended barite and the barium cycle in the Western Mediterranean Sea  

Microsoft Academic Search

Suspended particulate barium was measured in the Western Mediterranean along 4 profiles sampled during the PHYCEMED 1 cruise in 1981. The non-terrigenous fraction of particulate barium (i.e. excess Ba; Baxs) can account for up to 96% of total barium. This fraction follows the barite settling and dissolution rate model we described earlier for the Atlantic Ocean, confirming barite as the

F. DEHAIRSI; C. E. Lambert; R. Chesselet; N. Risler

1987-01-01

230

Sorption of strontium-90 from fresh waters during sulfate modification of barium manganite  

Microsoft Academic Search

Recovery of strontium-90 with barium manganite from fresh waters (natural fresh waters of open basins) can be increased by adding agents that contain sulfate ions and thus modify the sorbent and chemically bind the sorbate. The treatment results in a heterogeneous anion-exchange transformation of barium manganite into barium sulfate-manganese dioxide and in simultaneous absorptive coprecipitation of strontium sulfate (microcomponent).

Yu. V. Egorov

1995-01-01

231

Sorption of strontium-90 from fresh waters during sulfate modification of barium manganite  

SciTech Connect

Recovery of strontium-90 with barium manganite from fresh waters (natural fresh waters of open basins) can be increased by adding agents that contain sulfate ions and thus modify the sorbent and chemically bind the sorbate. The treatment results in a heterogeneous anion-exchange transformation of barium manganite into barium sulfate-manganese dioxide and in simultaneous absorptive coprecipitation of strontium sulfate (microcomponent).

Ryzhen`kov, A.P.; Egorov, Yu.V. [Ural State Technical Univ., Ekaterinburg (Russian Federation)

1995-11-01

232

Methods for producing monodispersed particles of barium titanate  

DOEpatents

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

Hu, Zhong-Cheng (Knoxville, TN)

2001-01-01

233

American thyroid association statement on outpatient thyroidectomy.  

PubMed

Background: The primary goals of this interdisciplinary consensus statement are to define the eligibility criteria for outpatient thyroidectomy and to explore preoperative, intraoperative, and postoperative factors that should be considered in order to optimize the safe and efficient performance of ambulatory surgery. Summary: A series of criteria was developed that may represent relative contraindications to outpatient thyroidectomy, and these fell into the following broad categories: clinical, social, and procedural issues. Intraoperative factors that bear consideration are enumerated, and include choice of anesthesia, use of nerve monitoring, hemostasis, management of the parathyroid glands, wound closure, and extubation. Importantly, postoperative factors are described at length, including suggested discharge criteria and recognition of complications, especially bleeding, airway distress, and hypocalcemia. Conclusions: Outpatient thyroidectomy may be undertaken safely in a carefully selected patient population provided that certain precautionary measures are taken to maximize communication and minimize the likelihood of complications. PMID:23742254

Terris, David J; Snyder, Samuel; Carneiro-Pla, Denise; Inabnet, William B; Kandil, Emad; Orloff, Lisa; Shindo, Maisie; Tufano, Ralph P; Tuttle, R Michael; Urken, Mark; Yeh For The American Thyroid Association Surgical Affairs Committee Writing Task Force, Michael W

2013-09-14

234

Effects of different fabrication techniques on the Yttrium-Barium-Copper oxide high temperature superconductor  

NASA Astrophysics Data System (ADS)

This study examines how several different parameters were changed in the yttrium-barium-copper oxide superconductor when the fabrication techniques were altered by using different barium precursors, including barium peroxide and barium carbonate; sintering at different temperatures, including 850, 900, 950 C; and annealing in an above ambient oxygen environment. Twelve different pellets were fabricated, and measurements were taken on them which included density, X-ray diffraction, critical temperature, critical current density, and magnetic susceptibility. The results showed that the barium peroxide derived samples had higher densities, better critical current densities and lower resistivities in the normal state.

Rhea, Paul A.

1988-12-01

235

Separation of lanthanum, hafnium, barium and radiotracers yttrium-88 and barium-133 using crystalline zirconium phosphate and phosphonate compounds as prospective materials for a Ra223 radioisotope generator  

Microsoft Academic Search

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

Teresia Mller; Naima Bestaoui; Melissa Wierzbicki; Todd Adams; Abraham Clearfield

2011-01-01

236

Separation of barium and lantanium on aluminium oxide  

Microsoft Academic Search

Lanthanum 140 having a short period of half-decay is sufficient to be used as a radioactive indicator in chemistry investigations of lanthanides and actinides. Preparates based on lanthanum 140 allow one to carry out studies to determine rare-earth elements in technological products and raw materials. This work was devoted to the study of the separations of lanthanum 140 from barium

S. Khuzaev; N. A. Mirzaeva; A. Sultanov

1993-01-01

237

Geochemistry of Barium in Sediments of the Western Black Sea  

Microsoft Academic Search

During two cruises with RV POSEIDON and RV METEOR to the western Black Sea (west of Crimean Peninsula) in 2004 and 2007, respectively, sediment cores were taken along a transect from 500 to 1700 m water depth. Pore water and solid phase investigations aimed at unraveling the geochemical behaviour of barium in this anoxic water column and sedimentary environment. In

S. Kasten; K. Bogus; M. Jones; S. Henkel; C. Maerz; K. Pfeifer; R. Seifert

2008-01-01

238

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 ...

239

Barium Cloud Growth and Striation in a Conducting Background  

Microsoft Academic Search

Previous calculations of barium cloud growth did not give reasonable estimates of Striation scale size and onset time because they assumed either no ionospheric end shorting or no ion diffusion (all modes unstable) or strong shorting (all modes stable). We derive a set of equations that includes both finite end shorting and ion diffusion and solve by a new numerical

J. N. Shiau; A. Simon

1974-01-01

240

Dielectric Behavior of Nano Barium Titanate Filled Polymeric Composites  

NASA Astrophysics Data System (ADS)

Rapid growth of electronic industry requires development of new materials that combine the high dielectric constant intrinsic to ferroelectric ceramic materials with easy processing characteristics of polymers. Ceramic-polymeric composites possess interesting properties for a variety of electronic applications including passive electronic devices. In fact, polymer-ceramic materials have drawn lot attention for use in microelectronic packaging, because they can give higher performance with lower cost, size and weight. In this work, attempts are made to prepare ceramic polymer composites followed by characterization of dielectric properties. The Barium Titanate ceramic powders are synthesized using the hydrothermal process. Crystal structure and crystallite size of particles are determined using X-ray diffraction. Silane treatment is carried out on Barium Titanate powder to increase its compatibility with polymer, followed with preparation of ceramic polymer composites. Epoxy and polyvinyledene fluoride (PVDF) polymers are used as matrices for preparation of the composites. The proportion of nanopowder is varied from 60 to 90 wt%. Dielectric properties such as volume resistivity, dielectric constant, dissipation factor are evaluated. Results indicate that the dielectric constant and dissipation factor vary between 18 -140 and 0.01 to 0.09, respectively as the relative ratio of polymer and silane modified Barium Titanate is varied. Specifically, at 90 wt% of 0.1 wt% silane modified Barium Titanate, the highest dielectric constant of 140 along with dissipation factor of 0.07 is obtained in the epoxy based system.

Pratap, A.; Joshi, N. J.; Rakshit, P. B.; Grewal, G. S.; Shrinet, V.

241

Permittivity of Solid Solutions of Barium and Lead Titanate.  

National Technical Information Service (NTIS)

An investigation was made of the effect on the dielectric properties of barium titanate (BaTiO3) by the addition of small percentages (0 to 10 percent) of lead titanate (PbTiO3). Measurements were made at 1 kc/s within the temperature range 0 to 200C. Inc...

G. W. Marks L. A. Monson

1967-01-01

242

Study of Barium Strontium Titanate Thin Film Doped by Indium  

Microsoft Academic Search

We have developed Barium Strontium Tinanate (BST) doped by Indium as soft dopant on Pt\\/Si substrate using chemical solution deposition method followed by spin coating. The specimen is then examined by XRF to identify the chemical content, SEM to study the morphology of the films, XRD to calculate the grain size, and electrometer Keithley 6517A to obtain the hysteresis curves.

M. Hikam; B. Soegijono; Y. Iriani; I. Mudzakir; D. Fasquelle

2009-01-01

243

Changes in oxidative stress during outpatient surgery  

Microsoft Academic Search

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

Robert H. Brown; Terence H. Risby

2009-01-01

244

Alexithymia in Dutch violent forensic psychiatric outpatients  

Microsoft Academic Search

Until now alexithymia has not been investigated in Dutch low-educated offenders who are known for their violent behaviour. We therefore investigated a sample of aggressive forensic psychiatric outpatients, who are characterized by emotional dysregulation in conflict situations. For that purpose we used a Dutch questionnaire, the Bermond-Vorst Alexithymia Questionnaire (BVAQ; Vorst & Bermond, 2001), which we also administered in a

R. H. J. Hornsveld; F. W. Kraaimaat

2011-01-01

245

Tobacco Smoking in Adolescent Psychiatric Outpatients  

ERIC Educational Resources Information Center

|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

Ditchburn, K. Marie; Sellman, J. Douglas

2013-01-01

246

Outpatient surgery care unit work process redesign  

Microsoft Academic Search

Health care practitioners at all levels within an organization have a professional responsibility to deliver quality patient care. The overall systems operation, as well as customer outcomes, can be enhanced by using redesign and process improvement strategies. This article highlights the implementation of these change strategies as a part of process improvement efforts in the Outpatient Surgery Care Unit (OSCU).

Darlene Kildea-Pahl; Jane Baltimore; Barbara Kosiara

2001-01-01

247

The Outpatient Forensic Substance Abuse Profile  

Microsoft Academic Search

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

James M. Cianciulli

1993-01-01

248

Dental Outpatients: Health Locus of Control Correlates.  

ERIC Educational Resources Information Center

Examined relationships among specific personality variables, the Multidimensional Health Locus of Control Scales, and criterion-based ratings by staff dentists with dental outpatients (N=101). Found a consistent relationship between the perception that health is maintained by engaging in health-related behaviors and individual difference measures

Ludenia, Krista; Donham, Greg W.

1983-01-01

249

Optimal Scheduling for an Outpatient Clinic.  

National Technical Information Service (NTIS)

A problem of an outpatient clinic is described. The problem is then formulated as a queueing problem with some special properties. Using a few results in queueing theory the authors discuss the existence of some parameters of this model. In order to find ...

D. Granot F. Granot

1973-01-01

250

38 CFR 17.163 - Posthospital outpatient dental treatment.  

Code of Federal Regulations, 2010 CFR

...DEPARTMENT OF VETERANS AFFAIRS MEDICAL Dental Services § 17.163 Posthospital outpatient dental treatment. The Chief, Dental Service may authorize outpatient dental care which is reasonably necessary to...

2010-07-01

251

38 CFR 17.165 - Emergency outpatient dental treatment.  

Code of Federal Regulations, 2010 CFR

...Relief DEPARTMENT OF VETERANS AFFAIRS MEDICAL Dental Services § 17.165 Emergency outpatient dental treatment. When outpatient emergency dental care is provided, as a humanitarian service, to individuals who have no established...

2010-07-01

252

38 CFR 17.165 - Emergency outpatient dental treatment.  

Code of Federal Regulations, 2010 CFR

...Relief DEPARTMENT OF VETERANS AFFAIRS MEDICAL Dental Services § 17.165 Emergency outpatient dental treatment. When outpatient emergency dental care is provided, as a humanitarian service, to individuals who have no established...

2009-07-01

253

38 CFR 17.163 - Posthospital outpatient dental treatment.  

Code of Federal Regulations, 2010 CFR

...DEPARTMENT OF VETERANS AFFAIRS MEDICAL Dental Services § 17.163 Posthospital outpatient dental treatment. The Chief, Dental Service may authorize outpatient dental care which is reasonably necessary to...

2009-07-01

254

38 CFR 17.163 - Posthospital outpatient dental treatment.  

Code of Federal Regulations, 2013 CFR

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

2013-07-01

255

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

Microsoft Academic Search

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

Serdar Yol; Mahmut Baykan; ?kr zer; Mehmet Akz; Osman Yilmaz; Cneyt Kuru

1998-01-01

256

Preliminary assessment of potential health hazards associated with barium leached from glazed ceramicware.  

PubMed

Ceramic glazes contain several elements which have the potential to leach into food or beverages that are held or stored in ceramicware. Recently, barium salts have been investigated as one of the alternatives to lead in frit formulations for glazes. This preliminary evaluation addresses the potential health hazards associated with barium at levels that might leach from glazed ceramicware. A set of specialty ceramicware, consisting of five teacups and a pitcher, was examined for extractable barium. Exposure to barium that adults (18-44 years) might encounter using the vessels for coffee, tea, or orange juice was estimated. The exposure estimate was derived from values for intakes of the beverages and for the barium migration from glazed ceramicware test samples. An established reference dose (RfD) for barium exposure for the critical effect of hypertension was identified. The potential hazard associated with the leaching of barium from glazed ceramicware varied with the level of use. Consuming beverages in amounts up to the 95th percentile would not result in total barium intake in amounts that exceed the RfD; consuming large quantities (> 95th percentile) of beverages such as tea or coffee from glazed vessels might. This suggests that for a small portion of the population of users, intake of barium may be in quantities that warrant further consideration as a potential health hazard. Analyses of a broad sample of ceramicware and study of barium leaching behaviour under actual use conditions are needed to assess further the significance of these findings. PMID:9328533

Assimon, S A; Adams, M A; Jacobs, R M; Bolger, P M

1997-07-01

257

Outpatient reconstruction using integra* and subatmospheric pressure.  

PubMed

Integra (Integra Lifesciences Corporation, Plainsboro, NJ) has been used in a variety of reconstructive surgical procedures. The application of Integra using subatmospheric pressure (V.A.C., Kinetic Concepts, Inc, San Antonio, TX) has been suggested to be easier, faster, and more consistent than previous dressings, allowing grafting as soon as 1 week after Integra placement. Ten patients were chosen for outpatient reconstructive surgery with Integra and subatmospheric pressure with skin grafting 7-10 days (mean = 8 days) post-Integra. Skin graft take was 75% to 100% (mean = 91.5%). No patients required additional grafting or reconstruction. Integra may be successfully used for reconstruction of difficult areas as an outpatient in combination with subatmospheric pressure (V.A.C.). This allows for expedited treatment, decreased morbidity, and lower cost versus standard Integra application. PMID:19158527

Park, Christopher A; Defranzo, Anthony J; Marks, Malcolm W; Molnar, Joseph A

2009-02-01

258

Primary epiploic appendagitis and successful outpatient management  

PubMed Central

Summary Background Primary epiploic appendagitis (PEA) is a rare cause of abdominal acute or subacute complaints. Diagnosis of PEA is made with ultrasonography (US) or when computed tomography (CT) reveals a characteristic lesion. Case Report We report on two patients with PEA. In one patient PEA was first seen with US and confirmed with contrast enhanced CT, and in the second patient CT without contrast enhancement demonstrated PEA. In both patients an outpatient recovery with conservative non-surgical treatment is described. Conclusions Medical personnel should be aware of this rare disease, which mimics many other intra-abdominal acute and subacute conditions. A correct diagnosis of PEA with imaging procedures enables conservative and successful outpatient management avoiding unnecessary surgical intervention and additional costs.

Schnedl, Wolfgang J.; Krause, Robert; Wallner-Liebmann, Sandra J.; Tafeit, Erwin; Mangge, Harald; Tillich, Manfred

2012-01-01

259

DBT in an outpatient forensic setting.  

PubMed

Literature shows that effective treatment of borderline personality disorder (BPD) has become possible. However, borderline patients in forensic psychiatry do not seem to benefit from this development. In forensic psychiatry, prevention of criminal recidivism is the main focus of treatment, not core borderline problems like parasuicidal and self-destructive behavior. A dialectical behavioral treatment program for BPD was implemented in an outpatient forensic clinic in The Netherlands. Sociodemographic, clinical, and treatment data were collected from ten male, and nineteen female forensic BPD patients, and compared with corresponding data from fifty-eight non-forensic BPD patients. The results show that it is possible to implement dialectical behavior therapy in an outpatient forensic clinic. The data indicate that the exclusion of forensic patients, and especially female forensic patients, from evidence-based treatment is unjustified given the highly comparable clinical and etiological characteristics they share with female BPD patients from general mental health settings. PMID:22560672

van den Bosch, L M C; Hysaj, M; Jacobs, P

2012-05-05

260

[Violent patients in a psychiatric outpatient department].  

PubMed

During the period 23.11.1987-22.11.1989, a total of 7,906 patients attended the psychiatric outpatient department and observation section on 12,469 occasions. Sixty patients (0.8%) behaved violently on 85 occasions. None of these episodes of violence resulted in injuries to persons requiring medical attention. 90% of the violent patients were men and 70% were in the age group 20-39 years. Approximately 1/5 were psychotic and, of these, approximately half suffered from schizophrenia. Comparison with the non-violent patient revealed that the probability of violence was greater if the patient was a man under the influence of alcohol and who had the diagnoses of narcomania, drug abuse or personality disorders. Significantly fewer violent patients were admitted than non-violent patients. Over 80% of the violent patients had previously been admitted to psychiatric departments. Approximately 60% had behaved violently on previous consultations with the psychiatric outpatient department. PMID:1926614

Benjaminsen, S; Petersen, P; Frydendahl, J; Rasmussen, G T

1991-09-30

261

Airway management in the outpatient setting.  

PubMed

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

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

2013-05-23

262

Falls in outpatients with Parkinson's disease  

Microsoft Academic Search

Falls are one of the most serious complications of gait disturbances in patients with Parkinson's disease (PD). Among previous\\u000a reports, the percentage of patients with PD who fall varies between 38% to 68%. We sought to determine the frequency of falls\\u000a and the factors associated with falls in a group of patients with idiopathic PD who attended an outpatient, tertiary

Yacov Balash; C. Peretz; G. Leibovich; T. Herman; J. M. Hausdorff; N. Giladi

2005-01-01

263

Administration of methohexital for pediatric outpatient dentistry.  

PubMed Central

Rectally administered methohexital is a safe, effective sedative to ameliorate the stress of the surgical experience for the uncooperative child. The rapid onset, relatively short duration, and patient acceptance of this technique make it applicable for many pediatric outpatient procedures. Induction doses of 20-30 mg/kg of a 10% methohexital solution can produce sleep in 7-8 minutes. In some situations, the rectal route of administration has advantages over more commonly used techniques.

Hunter, M. J.; Griswold, J. D.; Rosenberg, M.

1990-01-01

264

Formation of yttrium barium cuprate powder at low temperatures  

SciTech Connect

Yttrium barium cuprate can be formed at temperatures below 800{degrees}C from mixed oxides and carbonate if a low-oxygen-pressure atmosphere is used. This eliminates the formation of a high-oxygen-content nonsuperconducting phase which has been previously shown to form at lower temperatures. Reaction of barium carbonate and the oxides of copper and yttrium at temperatures as low as 750{degrees}C in reducing atmospheres is shown to form tetragonal YBa{sub 2}Cu{sub 3}O{sub x} with x about 6. This compound can then be oxidized by cooling in an oxidizing atmosphere to obtain the desired x value of about 7.

Lay, K.W. (Research and Development Center, General Electric Co., Schenectady, NY (US))

1989-04-01

265

Oxygen tracer diffusion in donor doped barium titanate  

NASA Astrophysics Data System (ADS)

Oxygen exchange with the ambient atmosphere and oxygen diffusion are assumed to play a decisive role in the re-oxidation process of positive temperature coefficient (PTC) resistors based on donor doped barium titanate. 18O tracer experiments with subsequent time-of-flight secondary ion mass spectrometry (ToF-SIMS) measurements were thus carried out to investigate the oxygen diffusion properties of donor doped barium titanate. Fast grain boundary diffusion was found at temperatures between 750 C and 900 C. Moreover, evidence is given for a position dependent diffusion coefficient close to the surface. The secondary phase developing during the production process is shown to be Ti-rich and hardly any oxygen tracer exchange with this secondary phase could be observed. This suggests that grain boundary diffusion does not take place via such secondary phases. Rather, evidence of diffusion along an oxygen vacancy enriched space charge region is found.

Frmling, T.; Hou, J.; Preis, W.; Sitte, W.; Hutter, H.; Fleig, J.

2011-08-01

266

Photoionization and photoelectric loading of barium ion traps  

SciTech Connect

Simple and effective techniques for loading barium ions into linear Paul traps are demonstrated. Two-step photoionization of neutral barium is achieved using a weak intercombination line (6s{sup 2} {sup 1}S{sub 0}{r_reversible}6s6p {sup 3}P{sub 1}, {lambda}=791 nm) followed by excitation above the ionization threshold using a nitrogen gas laser ({lambda}=337 nm). Isotopic selectivity is achieved by using a near Doppler-free geometry for excitation of the triplet 6s6p {sup 3}P{sub 1} state. Additionally, we report a particularly simple and efficient trap loading technique that employs an inexpensive uv epoxy curing lamp to generate photoelectrons.

Steele, A. V.; Churchill, L. R.; Griffin, P. F.; Chapman, M. S. [School of Physics, Georgia Institute of Technology, Atlanta, Georgia 30332-0430 (United States)

2007-05-15

267

Spectroscopy of barium attached to superfluid helium clusters  

NASA Astrophysics Data System (ADS)

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

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

268

Oriented barium ferrite straight-field focusing structure  

Microsoft Academic Search

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

I. Wagner

1970-01-01

269

Separation of barium and lantanium on aluminium oxide  

SciTech Connect

Lanthanum 140 having a short period of half-decay is sufficient to be used as a radioactive indicator in chemistry investigations of lanthanides and actinides. Preparates based on lanthanum 140 allow one to carry out studies to determine rare-earth elements in technological products and raw materials. This work was devoted to the study of the separations of lanthanum 140 from barium 140 utilizing inorganic sorbents.

Khuzaev, S.; Mirzaeva, N.A.; Sultanov, A.

1993-12-31

270

Analysis of the sixth spectrum of barium: Ba VI  

Microsoft Academic Search

The spectrum of barium was photographed in the 300 -1240 wavelength region on a 3-m normal incidence spectrograph at the Antigonish laboratory. The source used was a triggered spark. All five levels of the ground configuration 5s25p3 and 42 of 44 levels of the 5s5p4 + 5s25p25d + 5s25p26s configurations of Ba VI have been established. One hundred and

A. Tauheed; Y. N. Joshi

1994-01-01

271

Substrate effects on the crystalline orientation of barium hexaferrite films  

Microsoft Academic Search

Insitu crystallized barium hexaferrite films have been deposited with a target-facing sputtering system under previously optimized conditions on four different substrates which are: SiO2, ZnO, Gd3Ga5O12, and Al2O3. By using several structural and magnetic characterizations different growth mechanisms were put forward according to the chosen substrate. On amorphous silica there is an important Ba affinity for SiO2, resulting in the

E. Lacroix; P. Gerard; G. Marest; M. Dupuy

1991-01-01

272

Texture and Microstructural Development in Gelcast Barium Hexaferrite  

SciTech Connect

The development of texture in barium hexaferrite by templated grain growth was studied as a function of the Fe2O3/BaCO3 ratio, B2O3 additions in the starting materials, and sintering temperature. A magnetic field was used to orient the template particles during the gelcasting process. Excess BaCO3 resulted in abnormal grain growth and maximized texture, while B2O3 additions promoted coarsening, but no abnormal grain growth.

Hovis, David B. [Northwestern University, Evanston; Faber, Katherine T. [Northwestern University, Evanston; Kenik, Edward A [ORNL

2008-01-01

273

Elastic and Piezoelectric Coefficients of Single-Crystal Barium Titanate  

Microsoft Academic Search

Mechanical resonance and antiresonance frequencies were measured on barium titanate single-crystal elements maintained under electric dc bias from -50C to +150C. A complete set of elastic, piezoelectric, and dielectric constants of the tetragonal modification at 25C is obtained. The elastic compliances show substantial deviation from cubic symmetry. Measurements in the orthorhombic state show longitudinal compliance four times higher than in

Don Berlincourt; Hans Jaffe

1958-01-01

274

The positive temperature coefficient of resistivity in barium titanate  

Microsoft Academic Search

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

B. Huybrechts; K. Ishizaki; M. Takata

1995-01-01

275

Negative-U extended Hubbard model for doped barium bismuthates  

Microsoft Academic Search

We present detailed mean-field and random-phase-approximation studies of the negative-U, extended Hubbard model with a view to understanding the properties of the doped barium bismuthates. In particular, we obtain the phase diagram, the excitation spectrum, and the optical conductivity in the semiconducting phase of the bismuthates. We show by explicit calculations how this model leads to a natural explanation for

A. Taraphder; H. R. Krishnamurthy; Rahul Pandit; T. V. Ramakrishnan

1995-01-01

276

Preparation and microwave absorption properties of barium ferrite nanorods  

Microsoft Academic Search

Barium hexaferrite nanorods were successfully prepared using a solgel technique with polymethylmethacrylate as a template. The magnetic nanorods with diameters about 60nm and lengths about 300nm are visible from FESEM images. The electromagnetic parameters of BaFe12O19 with different shapes were measured with vector network analyzer at 515GHz. The results show that the microwave absorption properties of rod-shaped BaFe12O19 are better

Guohong Mu; Na Chen; Xifeng Pan; Haigen Shen; Mingyuan Gu

2008-01-01

277

AC Conducitivity in Bismuth-Substituted Barium Hexaferrites  

Microsoft Academic Search

Bismuth substituted barium hexaferrites in the composition series BaO(6-x) Fe2 O3x Bi2 O3 with 0

M. Pal; P. Brahma; D. Chakravorty

1994-01-01

278

Absolute ionisation functions for electron impact with barium  

Microsoft Academic Search

Absolute ionisation functions sigma n+(E)(n=1,2,3,4) and the total ionisation function sigma tot(E) for electron impact with barium have been determined for energies up to 600 eV. Modified crossed-beam techniques were applied using the excitation function of the light from the resonance transition as a reference standard for the cross sections. A time-of-flight device was used to separate ions with different

J.-M. Dettmann; F. Karstensen

1982-01-01

279

Acute barium intoxication following ingestion of soap water solution.  

PubMed

We present a rare case in which a young girl ingested a solution of a hair-removing soap. The ingestion resulted in profound hypokalemia and severe acidosis leading to flaccid paralysis, respiratory arrest and ventricular arrhythmias. Ultimately the patient made complete recovery. The soapwas found to contain barium sulfide. The degree of paralysis and acidosis appeared to be directly related to serum potassium levels. PMID:23559738

Joshi, Nandita; Sharma, Chhavi Sarabpreert; Sai; Sharma, Jai Prakash

2012-10-01

280

The Electrical Conductivity of Strontium-Barium Niobate  

NASA Astrophysics Data System (ADS)

We propose an explanation for the high electrical conductivity of the ferroelectric strontium-barium niobate. As the temperature T approaches the ferroelectric transition T c, the static dielectric constant \\varepsilon(0) diverges when a soft mode occurs. This divergence of \\varepsilon(0) reduces the donor binding energy, and increases the effective Bohr radius of the donor. The electrons bound to the donors become unbound, and the material becomes conductive.

Mahan, G. D.; Sofo, J. O.

2013-07-01

281

The distribution of rubidium, cesium and barium in the oceans  

Microsoft Academic Search

Rubidium, cesium and barium have been determined in several oceanic profiles by a neutron activation procedure based on the extraction of salt from 100 ml. samples by freeze-drying. Assuming a constant strontium-chlorinity ratio of 0.0425, strontium was used as an internal flux monitor. For 19.0% chlorinity the average concentrations of these three elements are 125 g Rb\\/1. (10 samples), 0.30

Ernst Bolter; Karl K. Turekian; Donald F. Schutz

1964-01-01

282

Light Scattering Investigations of Phase Transitions in Barium-Sodium  

Microsoft Academic Search

Barium sodium niobate, Ba_2NaNb _5O_{15} (BSN) possesses an incommensurate (IC) phase between an IC transition at T_1 = 300^circ C and a partial lock-in transition at T _{L} = 270^circ C. In addition, a few BSN crystals of the proper stoichiometry exhibit a reentrant phase transition at T_sp{1}{'} = 105 K to a phase with the same higher point group

William Franklin Oliver III

1988-01-01

283

Barium peritonitis: a rare complication of upper gastrointestinal contrast investigation.  

PubMed Central

Contrast examination of the gastrointestinal tract is rarely complicated by perforation. The colon and rectum are most commonly affected, with many perforations limited to the retroperitoneum. Generalised peritonitis is therefore rare, but is life-threatening and difficult to treat. We present two analogous cases in which extravasation of barium sulphate complicated contrast meal investigation. These cases illustrate important aspects in the management of this unusual occurrence. Images Figure

Karanikas, I. D.; Kakoulidis, D. D.; Gouvas, Z. T.; Hartley, J. E.; Koundourakis, S. S.

1997-01-01

284

Atoms in crossed fields: calculations for barium and hydrogen  

NASA Astrophysics Data System (ADS)

A method previously developed by Halley et al for non-hydrogenic atoms in laboratory strength static electric and magnetic fields (treated separately, and in a parallel geometry combination) has been extended to also handle crossed fields. Stimulated by results from recent experiments by Connerade et al at Imperial College, London, we have used the method to calculate the crossed field 0953-4075/30/16/004/img6 and 0953-4075/30/16/004/img7 barium photoabsorption spectra measured in these experiments. The calculated results are found to be in excellent agreement with those from experiment. Moreover, calculation complementing experiment has allowed the experimental magnetic field strength to be identified to better than 0.3% and barium field-free quantum defects to be determined to better than 0.01% (modulo unity). The corresponding photoabsorption spectra have also been calculated for hydrogen. Comparing calculated spectra and wavefunctions for the two atoms has identified the non-hydrogenic behaviour of barium, especially at longer wavelengths, to be due to the anomalous spectral locations, at near-zero electric field, of a small number of `seed' states. These `seed' states remain in their anomalous locations but grow in oscillator strength as the electric field strength is increased, thus giving rise to significant, localized, non-hydrogenic photoabsorption features. For progressively shorter wavelengths we reach a point where `seed' states can no longer be identified, and a much more uniform distribution of oscillator strength in the spectrum results.

Rao, Jianguo; Taylor, K. T.

1997-08-01

285

Orbital barium CRRES injection - effective source of ionospheric wavelike disturbances  

NASA Astrophysics Data System (ADS)

Spectral analysis of artificial wavelike disturbances (WD) in ionospheric parameters is presented. The sources of WD are barium clouds injections in Combined Release and Radiation Effects Satellite (CRRES) perigee experiments. Plasma concentration pulsations are found in the ionospheric F2 layer maximum over Havana (Cuba) at distances 1500-2500 km from the barium injection. It was found that for the spectral component with 10 min period, the delay (relative to injection moment) corresponded to WD propagation velocity in 323-390 m/s band and depended on the specific injection conditions. It was shown that in every experiment the WD effective propagation velocity in the terminator region correlated with the sunlit part of the trajectory from the injection point to Havana. When comparing this WD type with WD's of other origins (from earthquakes, high-altitude explosions and solar terminator), it was shown that purposeful injection in the ionosphere of even a small barium quantity with orbital velocity in terminator region might be the effective means for generation or amplification of natural WD.

Ruzhin, Yu. Ya.; Oraevsky, V. N.; Depueva, A. Kh.; Perez, H.; Palasio, L.

286

Barium thiolates and selenolates: syntheses and structural principles.  

PubMed

The synthesis and structural characterization of a family of barium thiolates and selenolates is described. The thiolates were synthesized by metallation of thiols, the selenolates by reductive insertion of the metal into the selenium-selenium bond of diorganodiselenides. Both reaction sequences were carried out by using barium metal dissolved in ammonia; this afforded barium thiolates and selenolates in good yield and purity. The structural principles displayed in the target compounds span a wide range of solid-state formulations, including monomeric and dimeric species, and separated ion triples, namely [Ba(thf)4(SMes*)2] (1; Mes* = 2,4,6-tBU3C6H2), [Ba(thf)4(SeMes*)2] (2), [Ba([18]crown-6)(hmpa)2][(SeMes*)2] (3), the dimeric [(Ba(py)3(thf)(SeTrip)2)2] (4; py = pyridine, Trip = 2,4.6-iPr3C6H2), and [Ba([18]crown-6)(SeTrip)2] (5). The full range of association modes is completed by [Ba([18]crown-6)(hmpa)SMes*][SMes*] (6) communicated earlier by this group. In the solid state, this compound displays an intermediate ion coordination mode: one anion is bound to the metal, while the second one is unassociated. Together these compounds provide structural information about all three different association modes for alkaline earth metal derivatives. This collection of structural data allows important conclusions about the influence of solvation and ligation on structural trends. PMID:11151839

Ruhlandt-Senge, K; Englich, U

2000-11-17

287

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

Microsoft Academic Search

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

Chu-Tsun Wu; Fu-Hsing Lu

2005-01-01

288

Determination of silicon, barium, and titanium in fresnoite single crystals and raw materials for them  

SciTech Connect

Single crystals of fresnoite show good electroptic parameters and high resistance to laser radiation, and are being examined for use in acoustoelectronics and optoelectronics. This paper investigates simple and reliable methods of determining silicon, barium, and titanium without preliminary separation. The authors examined the effects of large amounts of titanium and barium on the determination of silicon; it was found that titanium interferes. Barium does not interfere with the determination of silicon. Barium and titanium were determined by EDTA titration. The relative standard deviation in determining each of the elements did not exceed 6 x 10/sup -3/.

Sizonenko, N.T.; Egorova, L.A.; Gaiduk, O.V.; Khukhryanskii, A.K.

1985-09-01

289

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

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

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

2011-02-26

290

The effectiveness and ethical justification of psychiatric outpatient commitment.  

PubMed

Studies link involuntary outpatient commitment with improved patient outcomes, fueling debate on its ethical justification. This study compares inpatient utilization for committed outpatients in the 1990s with those who were not under outpatient civil commitment orders. Findings reveal committed outpatients had higher utilization of inpatient services and restraint episodes prior to their commitment compared with a control group. Committed outpatients also were more likely to have been on discharge status at the time of admission, have been admitted involuntarily under emergency legal procedures, and have had a greater number of admissions and hospital days prior to their commitment. Following commitment, patients had fewer hospitalizations, shorter lengths of stay, fewer seclusion episodes and hours, and fewer restraint episodes and hours. Findings are discussed within the context of parens patriae and therapeutic jurisprudence, and support medical and public policy justifications for ethical uses of outpatient civil commitment laws for seriously mentally ill patients. PMID:18027299

Zanni, Guido R; Stavis, Paul F

2007-11-01

291

[Leprosy outpatient clinic in Aichi Prefecture, Japan].  

PubMed

Until the Japanese Leprosy Prevention Law was abolished in 1996, leprosy patients, regardless of their severity, had to be treated by accredited doctors. The majority of them had to be confined in a sanatorium to be treated, since only few hospitals/sanatoria had outpatient clinics for leprosy patients. This de facto confinement limited their occupational, social, financial, and family options, but no clear criteria/guidelines allowing discharge existed. The importance of leprosy outpatient clinics was almost never debated until 1962, when Tofu Association (a foundation established in 1952 to support the confined patients) and the National Suruga Sanatorium planned the opening of the clinic. This clinic looked after total of 4,977 patients until the abolishment of the Law. Since 1996, 349 persons consulted the clinic as of 2010. The importance of the continuation of these clinics is beyond dispute, even in low-endemic countries. However, the diminishing number of patients and demands in this country makes the management difficult. Thus, coordination with the local clinics and dermatologists is inevitable. PMID:21941832

Ishii, Norihisa; Yotsu, Rie Roselyne; Mori, Shuichi

2011-09-01

292

Complications with Outpatient Angiography and Interventional Procedures  

SciTech Connect

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.

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

293

Racial disparities in involuntary outpatient commitment: are they real?  

PubMed

In this paper we explore racial disparities in outpatient civil commitment, using data from Kendra's Law in New York State. Overall, African Americans are more likely than whites to be involuntarily committed for outpatient psychiatric care in New York. However, candidates for outpatient commitment are largely drawn from a population in which blacks are overrepresented: psychiatric patients with multiple involuntary hospitalizations in public facilities. Whether this overrepresentation under court-ordered outpatient treatment is unfair depends on one's view: is it access to treatment and a less restrictive alternative to hospitalization, or a coercive deprivation of personal liberty? PMID:19414892

Swanson, Jeffrey; Swartz, Marvin; Van Dorn, Richard A; Monahan, John; McGuire, Thomas G; Steadman, Henry J; Robbins, Pamela Clark

294

Composition and structure measurements in an ionospheric barium cloud. Final report  

SciTech Connect

A 48 kg barium payload was launched from Eglin Air Force Base, Florida on 12 December 1980 at 2311 GMT and detonated at 183.7 km. At 2342:50.25 GMT, a second rocket, instrumented with an ion mass spectrometer and pulsed plasma probes, was fired to traverse the barium cloud. Composition, ion density, and structure measurements were acquired up to 241.2 km in both the natural and disturbed ionosphere. The rocket penetrated the barium cloud between 147 and 184 km. In addition to the Ba+, Ba++ produced by H Lyman alpha ionization, and Ca+, an impurity in the barium were detected in the cloud. A peak barium ion concentration of about 6,000,000 ions cu cm was measured at 161 km where the ionospheric NO+ and O2+ ions were essentially eliminated by large recombination loss. The bottom side of the barium cloud had a relatively smooth structure while the top side showed significant density fluctuations. The first experimental evidence of a theoretically predicted E region 'image cloud' was found in the form of an enhanced NO+ layer just below the barium cloud. Unexplained wave-like density variations in O+, NO+, and O2(+) also were seen above the barium cloud to 195 km. A quantitative estimate of the outgassing water vapor concentrations near the payload's surface was made using the fast change transfer rate coefficient for O+ + H2O yields H2O+ + O that created the observed water vapor ions.

Narcisi, R.; Trzcinski, E.; Federico, G.; Wlodyka, L.; Bench, P.

1981-12-23

295

Rapid detection of myrosinase-producing fungi: a plate method based on opaque barium sulphate formation  

Microsoft Academic Search

A simple and rapid technique to assess the capability of fungi to produce myrosinase is reported. This was carried out by growing the tested fungi in sinigrinbarium agar plates. Strains capable of producing myrosinase were indicated by an opaque barium sulphate zone forming underneath and\\/or surrounding their colonies. This simple test has been confirmed by determination of myrosinase activity in

P. Sakorn; N. Rakariyatham; H. Niamsup; P. Nongkunsarn

2002-01-01

296

H? production in a small multicusp ion source with addition of barium  

Microsoft Academic Search

The effect on H? production by adding barium to a hydrogen discharge, in a small magnetically filtered multicusp ion source, has been investigated. It is found that the addition of barium can increase the H? output by a factor of 30. A strong dependence of H? output on the temperature of the ion source wall has also been observed.

S. R. Walther; K. N. Leung; W. B. Kunkel

1989-01-01

297

H - production in a small multicusp ion source with addition of barium  

Microsoft Academic Search

The effect on H⁻ production by adding barium to a hydrogen discharge, in a small magnetically filtered multicusp ion source, has been investigated. It is found that the addition of barium can increase the H⁻ output by a factor of 30. A strong dependence of H⁻ output on the temperature of the ion source wall has also been observed.

S. R. Walther; K. N. Leung; W. B. Kunkel

1989-01-01

298

SHORT TERM TOXICITY (1 AND 10 DAY GAVAGE) OF BARIUM CHLORIDE IN MALE AND FEMALE RATS  

EPA Science Inventory

To assess adverse effects that might be caused by an event resulting in high levels of barium in drinking water, rats were gavaged with barium chloride (BaCl2 at dosage levels of 30,100, and 300 rng/kg in a 1-day study and at 100,145,209, and 300 rng/kg for 10 days, and the effec...

299

Epitaxial bismuth telluride layers grown on (111) barium fluoride substrates suitable for MQW-growth  

Microsoft Academic Search

Multi quantum wells and superlattices are discussed as suitable tools for increasing ZT. Best layer quality should be expected only for lattice matched growth. Therefore (111) barium fluoride should be most suitable compared to other common substrates like mica and sapphire, although up to now epitaxial growth of bismuth telluride on (111) barium fluoride with atomically flatness was not achieved.

J. Nurnus; H. Bottner; H. Beyer; A. Lambrecht

1999-01-01

300

Lack of effect of drinking water barium on cardiovascular risk factors  

SciTech Connect

Higher cardiovascular mortality has been associated in a single epidemiological study with higher levels of barium in drinking water. The purpose of this study was to determine whether drinking water barium at levels found in some U.S. communities-alters the known risk factors for cardiovascular disease. Eleven healthy men completed a 10-week dose-response protocol in which diet was controlled. Other aspects of the subjects' lifestyles known to affect cardiac risk factors were controlled, and the barium content (as barium chloride) of the drinking water was varied from 0, to 5 ppm, to 10 ppm. Multiple blood and urine samples, morning and evening blood pressure measurements, and 48-hr electrocardiographic monitoring were performed at each dose of barium. There were no changes in morning or evening systolic or diastolic blood pressures, plasma cholesterol or lipoprotein or apolipoprotein levels, serum potassium or glucose levels, or urine catecholamine levels. There were no arrythmias related to barium exposure detected on continuous electrocardiographic monitoring. A trend was seen toward increased total serum calcium levels with exposure to barium, which was of borderline statistical significance and of doubtful clinical significance. In summary, drinking water barium at levels of 5 and 10 ppm did not appear to affect any of the known modifiable cardiovascular risk factors.

Wones, R.G.; Stadler, B.L.; Frohman, L.A. (Univ. of Cincinnati College of Medicine, OH (USA))

1990-04-01

301

QUANTITATIVE RADIOCHEMICAL ANALYSIS BY ION EXCHANGE. V. CALCIUM, STRONTIUM, AND BARIUM  

Microsoft Academic Search

A procedure was developed for the separation of calcium, strontiums and ; barium from the rare earths and from each other. This is similar to the ion-; exchange method of Baerg and Bartholomew which elutes cerium, lanthanums ; strontiums and barium sequentially from a Dowex-50 Xl2, 87 deg C column using ; solutions of ammonium alpha -hydroxyisobutyrate. By lowering the

Wish

1959-01-01

302

Synthesis and properties of barium titanate solid solution thin films deposited on copper substrates  

Microsoft Academic Search

Barium titanate thin films were deposited via chemical solution deposition using a hybrid-chelate chemistry directly on copper foil substrates. A process was developed to crystallize and densify the ferroelectric films at 900C by using a reductive atmosphere containing nitrogen, hydrogen, water vapor, and oxygen impurities such that film constituents were oxidized to form barium titanate and the foil substrate remained

Jon Fredrick Ihlefeld

2006-01-01

303

LACK OF EFFECT OF DRINKING WATER BARIUM ON CARDIOVASCULAR RISK FACTORS  

EPA Science Inventory

Higher cardiovascular mortality has been associated in a single epidemiological study with higher levels of barium in drinking water. he purpose of this study was to determine whether drinking water barium at levels found in some U.S. communities alters the known risk factors for...

304

Nanocrystalline structure and magnetic properties of barium ferrite particles prepared via glycine as a fuel  

Microsoft Academic Search

The barium ferrite particles were prepared using a self-propagating combustion method with glycine as a fuel. The process was investigated with differential scanning calorimeter and thermogravimetric analysis. The effects of the pH value of the precursor solution, the glycine dosage and calcination temperature on the morphology, the crystalline structure and the magnetic properties of the barium ferrite particles were studied

Jianxun Qiu; Le Liang; Mingyuan Gu

2005-01-01

305

Observation and theory of the barium releases from the CRRES satellite  

Microsoft Academic Search

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

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

1992-01-01

306

Acute barium toxicity from ingestion of snake fireworks  

Microsoft Academic Search

IntroductionIngestion of fireworks has been infrequently reported in the medical literature. We describe a case of acute barium poisoning\\u000a following firework ingestion.\\u000a \\u000a \\u000a \\u000a Case ReportA 35-year-old male with a history of severe mental retardation presented with vomiting and diarrhea following ingestion of\\u000a 16 small fireworks (color snakes and black snakes). His condition rapidly deteriorated and he developed obtundation, wide\\u000a complex dysrhythmias,

Sean H. Rhyee; Kennon Heard

2009-01-01

307

Radium and barium in the Amazon River system  

SciTech Connect

Data for /sup 226/Ra and /sup 228/Ra in the Amazon River system show that the activity of each radium isotope is strongly correlated with barium concentrations. Two trends are apparent, one for rivers which drain shield areas and another for all other rivers. These data suggest that there has been extensive fractionation of U, Th, and Ba during weathering in the Amazon basin. The /sup 226/Ra data fit a flux model for the major ions indicating that /sup 226/Ra behaves conservatively along the main channel of the Amazon River.

Moore, W.S.; Edmond, J.M.

1984-03-20

308

Analysis of the sixth spectrum of barium: Ba VI  

NASA Astrophysics Data System (ADS)

The spectrum of barium was photographed in the 300 -1240 wavelength region on a 3-m normal incidence spectrograph at the Antigonish laboratory. The source used was a triggered spark. All five levels of the ground configuration 5s25p3 and 42 of 44 levels of the 5s5p4 + 5s25p25d + 5s25p26s configurations of Ba VI have been established. One hundred and twenty-seven lines have been classified. The parametric least-squaresfitted calculations involving configuration interaction amongst even parity configurations were carried out to interpret the observed spectrum satisfactorily.

Tauheed, A.; Joshi, Y. N.

1994-03-01

309

Agglomeration behavior of solid nickel on polycrystalline barium titanate  

SciTech Connect

This letter describes the phenomenon that takes place between nickel/barium titanate couples when heated under conditions employed in multilayer ceramic capacitor manufacturing practice: a 4hr, 1300C isothermal anneal in 1% H2 99% N2. Dense, sputtered nickel films were observed to dewet the titanate and agglomerate into discrete or interconnected islands via a solid-state process. Up to a critical film thickness value of ~1.4?m, the degree of agglomeration was found to display an exponential dependence on the thickness of the original nickel film.

Weil, K. Scott; Mast, Eric S.; Sprenkle, Vince

2007-11-01

310

Nanodielectric system for cryogenic applications: Barium titanate filled polyvinyl alcohol  

SciTech Connect

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.

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

2008-01-01

311

Coprecipitation of radium with barium sulfate from salt solutions  

Microsoft Academic Search

Coprecipitation of radium with barium sulfate from highly concentrated NaCl solutions is studied, including the effects of\\u000a the initial solution composition, alkaline reagent (CaO, NaOH), supporting electrolyte (NaCl) concentration, and pH. The process\\u000a is promoted by high NaCl concentration in the initial solution, which is due to structural transformation and change in the\\u000a sorption activity of the BaSO4 precipitate in

Yu. P. Kudryavskii; O. V. Rakhimova

2007-01-01

312

Radiation doses to children during modified barium swallow studies  

Microsoft Academic Search

BackgroundThere are minimal data on radiation doses to infants and children undergoing a modified barium swallow (MBS) study.\\u000a \\u000a \\u000a \\u000a ObjectiveTo document screening times, dose area product (DAP) and effective doses to children undergoing MBS and to determine factors\\u000a associated with increased screening times and effective dose.\\u000a \\u000a \\u000a \\u000a Materials and methodsFluoroscopic data (screening time, DAP, kVp) for 90 consecutive MBS studies using pulse

Kelly A. Weir; Sandra M. McMahon; Gillian Long; Judith A. Bunch; Nirmala Pandeya; Kerry S. Coakley; Anne B. Chang

2007-01-01

313

The barium ion jet experiments of the Porcupine project  

NASA Astrophysics Data System (ADS)

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.

Haerendel, G.

1980-06-01

314

Evidence against Barium in the Mushroom Trogia venenata as a Cause of Sudden Unexpected Deaths in Yunnan, China  

PubMed Central

This study examined barium concentrations in the mushroom Trogia venenata, the leading culprit for sudden unexpected deaths in Yunnan, southwest China. We found that barium concentrations in T. venenata from Yunnan were low and comparable to other foods, inconsistent with barium concentrations in this mushroom as a significant contributor to these deaths.

Zhang, Ying; Li, Yanchun; Wu, Gang; Feng, Bang; Yoell, Shanze; Yu, Zefen; Zhang, Keqin

2012-01-01

315

High resolution imaging of barium ions and atoms near the sampling cone of an inductively coupled plasma mass spectrometer  

Microsoft Academic Search

Planar laser-induced fluorescence was used to map density distributions of ground state barium atoms, ground state barium ions, and excited-state barium ions in the region between the load coil and the sampling cone of an inductively coupled plasma mass spectrometer. The effects of power, nebulizer gas flow rate, and the addition of lithium to the sample on the distributions were

Andrew A. Mills; Jeffrey H. Macedone; Paul B. Farnsworth

2006-01-01

316

Jet-pump crystallizers in reaction-crystallization processes with solid reagentbarium sulphate precipitation study  

Microsoft Academic Search

The research results concerning barium sulphate precipitation from the concentrated water solutions of barium chloride by means of crystalline ammonium sulphate addition are presented. The experiments were carried out in a continuous laboratory DTM crystallizer with inner circulation of suspension. A liquid jet-pump device generating ascending\\/descending flow of medium in a mixing chamber was used. Influences of barium chloride concentration

K. Piotrowski; J. Koralewska; A. Matynia

2010-01-01

317

Fabrication of barium/strontium carbonate coated amorphous carbon nanotubes as an improved field emitter  

NASA Astrophysics Data System (ADS)

Amorphous carbon nanotubes (aCNTs) were synthesized by a chemical reaction between ferrocene and ammonium chloride at a temperature 250 ?C in an air furnace. As-synthesized aCNTs were coated with the barium/strontium carbonate through a simple chemical process. The coating of barium/strontium carbonate was confirmed by a high resolution transmission electron microscopy, X-ray diffraction, and Fourier transformed infrared spectroscopy. Morphology of the as-prepared samples was studied by field emission scanning electron microscopy. Thermal gravimetric analysis showed that barium/strontium carbonate coated aCNTs are more stable than the pristine aCNTs. As-prepared barium/strontium carbonate coated aCNTs showed significantly improved field emission properties with a turn-on field as low as 2.5 V/?m. The variation of field emission characteristics of the barium/strontium carbonate coated aCNTs with interelectrode distances was also studied.

Maity, S.; Jha, A.; Das, N. S.; Chattopadhyay, K. K.

2013-02-01

318

Temperature dependence dielectric properties of modified barium titanate-PVB composites  

NASA Astrophysics Data System (ADS)

In this work, attempts are made to prepare ceramic polymer-composite followed by characterization of dielectric properties. The Barium Titanate ceramic powders are synthesized using the hydrothermal process. Silane treatment is carried out on Barium Titanate powder to increase its compatibility with polymer, followed with preparation of ceramic-polymer composite. Polyvinyl Butyral (PVB) is used as matrix for preparation of the composites and the concentration of Barium Titanate is increased from 60 to 90 wt%. Dielectric properties such as volume resistivity, dielectric constant, dissipation factor are evaluated. Results indicate that the dielectric constant and dissipation factor vary between 52 to 120 and 0.01 to 0.07; respectively as the relative ratio of polymer and silane modified Barium Titanate is varied. Specifically, at 90 wt% of silane modified Barium Titanate, the highest dielectric constant of 123 along with dissipation factor of 0.07 is obtained.

Joshi, N. J.; Rakshit, P. B.; Grewal, G. S.; Shrinet, V.; Pratap, A.

2013-06-01

319

Barium Geochemistry of a Marginal Cold-seep Basin: Abundance and Provenance of Total Barium and Barite in the San Clemente Basin.  

NASA Astrophysics Data System (ADS)

Barium in marine sediments is found in various solid phases including barite, aluminosilicates, carbonates, organic material and oxyhydroxides. Barite, the dominant Ba-bearing solid phase in pelagic settings, is of particular interest as it has the potential for use as a tracer for paleoproductivity and past isotopic and rare earth element composition of seawater. Barite crystals form by abiotic precipitation in supersaturated microenvironments of decaying organic material in the water column and then settle as aggregates to the sediments. In areas of cold seep activity, discharge of barium-rich seep fluid also results in large in situ barite deposits at the seafloor. Transport of particles from these deposits leads to significantly increased barium concentrations in surrounding sediments. The San Clemente basin located about 100km off the coast of San Diego, is one such location where massive barite deposits have been observed in association with cold seep activity along the San Clemente fault that transects the basin. Analysis of surface sediments from the San Clemente basin has shown total barium enrichment of up to 140% higher than surface sediments from the neighboring Santa Catalina basin. Cold seeps are not present in the latter location, where the major source of barite is likely to be that associated with biogenic material. The significant input of barium from authigenic barite deposits to surrounding sediments affects global barium geochemistry and could possibly be used to provide a paleorecord for cold seep activity.

McQuay, E. L.; Torres, M. E.; Collier, R.; Huh, C.; Newell, S.

2004-12-01

320

Outcome Measures for Outpatient Hypoglycemia Prevention Studies  

PubMed Central

Systems are being developed that utilize algorithms to predict impending hypoglycemia using commercially available continuous glucose monitoring (CGM) devices and to discontinue insulin delivery if hypoglycemia is predicted. In outpatient studies designed to test such systems, CGM-measured glycemic indices will not only be important outcome measures of efficacy but, in certain cases, will be the only good outcome. This is especially true in short-term studies designed to reduce hypoglycemia since the event rate for severe hypoglycemic events is too low for it to be a good outcome, and milder hypoglycemia often will be variably detected. Continuous glucose monitoring inaccuracy can be accounted for in the study design by increasing sample size and/or study duration.

Beck, Roy W; Kollman, Craig; Xing, Dongyuan; Buckingham, Bruce A; Chase, H. Peter

2011-01-01

321

Supervisory Turnover in Outpatient Substance Abuse Treatment  

PubMed Central

Staff turnover is a significant issue within substance abuse treatment, with implications for service delivery and organizational health. This study examined factors associated with turnover among supervisors in outpatient substance abuse treatment. Turnover was conceptualized as being an individual response to organizational-level influences, and predictors represent aggregate program measures. Participants included 532 staff (including 467 counselors and 65 clinical/program directors) from 90 programs in four regions of the USA. Using logistic regression, analyses of structural factors indicated that programs affiliated with a parent organization and those providing more counseling hours to clients had higher turnover rates. When measures of job attitudes were included, only parent affiliation and collective appraisal of satisfaction were related to turnover. Subsequent analyses identified a trend toward increased supervisory turnover when satisfaction was low following the departure of a previous supervisor. These findings suggest that organizational-level factors can be influential in supervisory turnover.

Knight, Danica K.; Broome, Kirk M.; Edwards, Jennifer R.; Flynn, Patrick M.

2009-01-01

322

[Analysis of 7843 outpatients with diarrhoea].  

PubMed

7843 outpatients with diarrhoea registered at clinical units of villages, townships and counties were analysed in August 20-30, 1988. Among those, 3129 (39.9%) cases were children under 5 years of age, and 18 (0.23%) with cholera, 2222 (28.33%) with dysentery, 122 (1.56%) with typhoid or paratyphoid fever and 5479 (69.88%) with other diarrhoea diagnosed by clinical symptoms. It was shown that the mediate or severe, mild and no dehydration was 5.37%, 26.97% and 66.66% respectively, and that the use rate of antibiotics, I.V. infusion, ORS and Chinese Herbs was 88.94%, 19.32%, 27.64% and 15.86% respectively. The conclusion elucidated that the high proportion of seeking medical services within 24 hours and few cases of mediate or severe dehydration were one of the reasons why there was low case-fatality of diarrhoea in China. PMID:2276183

Yu, W

1990-12-01

323

Indentation size effect in barium titanate with spherical tipped nanoindenters  

NASA Astrophysics Data System (ADS)

Nanoindentation tests in an 90-ac-domain area of an {001} orientated barium titanate single crystal were performed using four different indenters (two with cube corner and two with spherical shape) with tip radii from 61 nm to 1.9 ?m. Extensive calibrations of the tips on fused quartz and sapphire defined the penetration depth range for approximately spherical contact prior to indentation of barium titanate (BaTiO3). The measured elastic modulus is independent of the different indenters. The measurements showed plastic deformation after ``pop-in''. The calculated mean pressure remained constant for each indenter, but clearly depends upon the indenter radius. The indenter radius dependence of the hardness support the concept of ``geometrically necessary dislocations'', proposed by W. D. Nix and H. Gao [J. Mech. Phys. Sol., 46, 411 (1998)] and its extension to spherical tipped indenters [J. G. Swadener, E. P. George, G. M. Pharr, J. Mech. Phys. Solids, 50, 681 (2002)]. The results show this concept fits the data generated with indenter radii which are at least an order of magnitude lower than investigated by Swadener. Furthermore, the results agree with estimates of the statistically stored dislocation density determined for BaTiO3.

Scholz, T.; Muoz-Saldaa, J.; Swain, M. V.; Schneider, G. A.

2006-02-01

324

Proton trapping in yttrium-doped barium zirconate  

NASA Astrophysics Data System (ADS)

The environmental benefits of fuel cells have been increasingly appreciated in recent years. Among candidate electrolytes for solid-oxide fuel cells, yttrium-doped barium zirconate has garnered attention because of its high proton conductivity, particularly in the intermediate-temperature region targeted for cost-effective solid-oxide fuel cell operation, and its excellent chemical stability. However, fundamental questions surrounding the defect chemistry and macroscopic proton transport mechanism of this material remain, especially in regard to the possible role of proton trapping. Here we show, through a combined thermogravimetric and a.c. impedance study, that macroscopic proton transport in yttrium-doped barium zirconate is limited by protondopant association (proton trapping). Protons must overcome the association energy, 29?kJ?mol?1, as well as the general activation energy, 16?kJ?mol?1, to achieve long-range transport. Proton nuclear magnetic resonance studies show the presence of two types of proton environment above room temperature, reflecting differences in protondopant configurations. This insight motivates efforts to identify suitable alternative dopants with reduced association energies as a route to higher conductivities.

Yamazaki, Yoshihiro; Blanc, Frdric; Okuyama, Yuji; Buannic, Lucienne; Lucio-Vega, Juan C.; Grey, Clare P.; Haile, Sossina M.

2013-07-01

325

Barium titanate core--gold shell nanoparticles for hyperthermia treatments.  

PubMed

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

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

2013-06-28

326

Redox processes in highly yttrium-doped barium titanate  

NASA Astrophysics Data System (ADS)

The changes of microstructure occurring during oxidation of the reduced form of yttrium-doped barium titanate (Ba1-xYxTi1-x4+Tix3+O3) have been studied. Samples were sintered under reduction conditions at PO2=10-4Pa and oxidized by annealing at high temperatures (1150 and 1350 C) in air. Depending on yttrium concentration, the oxidation of the reduced form of the yttrium-doped BaTiO3 caused precipitation of the phase Ba6Ti17O40 or the phases Ba6Ti17O40 and Y2Ti2O7. The precipitates had well-defined orientational relationships with the perovskite matrix. Oxidation of the reduced form of doped barium titanate results in formation of the phase Ba1-xYxTi1-x/44+(VTi'''')x/4O3 responsible for increase in the resistance of outer grain layers, which lie between grain boundaries and grain.

Belous, Anatolii; v'Yunov, Oleg; Kovalenko, Leonid; Makovec, Darko

2005-05-01

327

Redox processes in highly yttrium-doped barium titanate  

SciTech Connect

The changes of microstructure occurring during oxidation of the reduced form of yttrium-doped barium titanate (Ba{sub 1-x}Y{sub x}{sup ?}Ti{sub 1-x}{sup 4+}Ti{sub x}{sup 3+}O{sub 3}) have been studied. Samples were sintered under reduction conditions at P{sub O{sub 2}}=10{sup -4}Pa and oxidized by annealing at high temperatures (1150 and 1350 deg. C) in air. Depending on yttrium concentration, the oxidation of the reduced form of the yttrium-doped BaTiO{sub 3} caused precipitation of the phase Ba{sub 6}Ti{sub 17}O{sub 40} or the phases Ba{sub 6}Ti{sub 17}O{sub 40} and Y{sub 2}Ti{sub 2}O{sub 7}. The precipitates had well-defined orientational relationships with the perovskite matrix. Oxidation of the reduced form of doped barium titanate results in formation of the phase Ba{sub 1-x}Y{sub x}{sup ?}Ti{sub 1-x/4}{sup 4+}(V{sub Ti}{sup -}bar ){sub x/4}O{sub 3} responsible for increase in the resistance of outer grain layers, which lie between grain boundaries and grain.

Belous, Anatolii [Department of Solid State Chemistry, V.I. Vernadskii Institute of General and Inorganic Chemistry, Ukrainian National Academy of Sciences, Institute of General and Inorganic Chemistry, 32/42, Palladin Ave, 03680 Kyiv 142 (Ukraine); V'yunov, Oleg [Department of Solid State Chemistry, V.I. Vernadskii Institute of General and Inorganic Chemistry, Ukrainian National Academy of Sciences, Institute of General and Inorganic Chemistry, 32/42, Palladin Ave, 03680 Kyiv 142 (Ukraine)]. E-mail: vyunov@ionc.kar.net; Kovalenko, Leonid [Department of Solid State Chemistry, V.I. Vernadskii Institute of General and Inorganic Chemistry, Ukrainian National Academy of Sciences, Institute of General and Inorganic Chemistry, 32/42, Palladin Ave, 03680 Kyiv 142 (Ukraine); Makovec, Darko [Jozef Stefan Institute, Ljubljana (Slovenia)

2005-05-15

328

Errors associated with outpatient computerized prescribing systems  

PubMed Central

Objective To report the frequency, types, and causes of errors associated with outpatient computer-generated prescriptions, and to develop a framework to classify these errors to determine which strategies have greatest potential for preventing them. Materials and methods This is a retrospective cohort study of 3850 computer-generated prescriptions received by a commercial outpatient pharmacy chain across three states over 4?weeks in 2008. A clinician panel reviewed the prescriptions using a previously described method to identify and classify medication errors. Primary outcomes were the incidence of medication errors; potential adverse drug events, defined as errors with potential for harm; and rate of prescribing errors by error type and by prescribing system. Results Of 3850 prescriptions, 452 (11.7%) contained 466 total errors, of which 163 (35.0%) were considered potential adverse drug events. Error rates varied by computerized prescribing system, from 5.1% to 37.5%. The most common error was omitted information (60.7% of all errors). Discussion About one in 10 computer-generated prescriptions included at least one error, of which a third had potential for harm. This is consistent with the literature on manual handwritten prescription error rates. The number, type, and severity of errors varied by computerized prescribing system, suggesting that some systems may be better at preventing errors than others. Conclusions Implementing a computerized prescribing system without comprehensive functionality and processes in place to ensure meaningful system use does not decrease medication errors. The authors offer targeted recommendations on improving computerized prescribing systems to prevent errors.

Rothschild, Jeffrey M; Salzberg, Claudia; Keohane, Carol A; Zigmont, Katherine; Devita, Jim; Gandhi, Tejal K; Dalal, Anuj K; Bates, David W; Poon, Eric G

2011-01-01

329

InpatientOutpatient Cost Shifting in Washington Hospitals  

Microsoft Academic Search

This paper empirically investigates the phenomenon known as cost shifting across inpatient and outpatient hospital services. That is, we examine whether, when faced with lower government reimbursement for outpatient services, providers raise inpatient prices for non-government patients (and analogously for lower inpatient government reimbursement). Using a panel of hospitals from Washington State, we find that private, nonprofit hospitals do cost

Daniel L. Friesner; Robert Rosenman

2004-01-01

330

Bypassing the Local Rural Hospital for Outpatient Procedures  

ERIC Educational Resources Information Center

|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

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

2009-01-01

331

Using simulation to improve outpatient appointment system with minimum change  

Microsoft Academic Search

As a result of population aging in Japan, health care has become the focus of the society. As an essential quality measure, the outpatient waiting time has to be dealt well with. an effective appointment system plays an important role in controlling outpatient waiting time. In our case, the current waiting time is not shorter than the normal level of

Jiahua Li; Yue Zhou; Fukuya Ishino

2008-01-01

332

Understanding non-attendance in outpatient paediatric clinics  

Microsoft Academic Search

Outpatient clinic appointments are often not kept. There has been little study of the reasons for this, but failure to attend may affect future health. Our study was based on the children's outpatient department of a large inner city district general hospital. The parents of 34 children who had failed to keep appointments and of 12 who did attend were

R Andrews; J D Morgan; D P Addy; A S McNeish

1990-01-01

333

[About improvement of outpatient dental health service for young serviceman].  

PubMed

The article gives a detailed account of results of epidemiological survey of dental morbidity in young serviceman and different types of outpatient dental health service needs. Medical norms for dispensary supply with all types of outpatient dental health service for young servicemen are estimated. Suggestions for improvement of organizational and staff structure of dental office of medical company are formulated. PMID:23808208

Klimov, A S; Grebnev, G A; Slivkin, A A; Iordanishvili, A K; Potrakhov, N N

2013-03-01

334

Evidence-Based Practices in Outpatient Treatment for Eating Disorders  

ERIC Educational Resources Information Center

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

Schaffner, Angela D.; Buchanan, Linda Paulk

2010-01-01

335

Screening for Cognitive Impairment: A Triage for Outpatient Care  

Microsoft Academic Search

The current increase in aged individuals in number and proportionof the general population warrants dependable strategies to improve early detection of cognitive impairment. It was the goal of the present study to develop a triage for bedside testing and outpatient ser vices. In a prospective clinical cohort study at the outpatient Memory Clinic, University of Ulm, Germany, 232 subjects were

Ulrike Beinhoff; Verena Hilbert; Daniel Bittner; Georg Grn; Matthias W. Riepe

2005-01-01

336

Development of the Physical Therapy Outpatient Satisfaction Survey (PTOPS)  

Microsoft Academic Search

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

Susan E Roush; Robert J Sonstroem

1999-01-01

337

Body dysmorphic disorder in outpatients with major depression  

Microsoft Academic Search

Background: Body dysmorphic disorder (BDD) is a distressing and impairing preoccupation with an imagined or slight defect in appearance, with depression as its most frequent comorbid condition. The purpose of this study was to evaluate the rate of BDD in a cohort of consecutive outpatients with typical and atypical major depressive disorder. Methods: Three hundred and fifty consecutive outpatient subjects

Andrew A. Nierenberg; Katharine A. Phillips; Timothy J. Petersen; Karen E. Kelly; Jonathan E. Alpert; John J. Worthington; Joyce R. Tedlow; Jerrold F. Rosenbaum; Maurizio Fava

2002-01-01

338

The pain behavior scale: Modification and validation for outpatient use  

Microsoft Academic Search

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

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

1985-01-01

339

Effects of different fabrication techniques on the yttrium-barium-copper oxide high-temperature superconductor. Master's thesis  

SciTech Connect

This study examines how several different parameters were changed in the yttrium-barium-copper oxide superconductor when the fabrication techniques were altered by using different barium precursors, including barium peroxide and barium carbonate; sintering at different temperatures, including 850, 900, and 950 C; and annealing in an above ambient oxygen environment. Twelve different pellets were fabricated, and measurements were taken on them which included density, x-ray diffraction, critical temperature, critical current density, and magnetic susceptibility. Results showed that the barium perioxide derived samples had higher densities, better critical current densities and lower resistivities in the normal state.

Rhea, P.A.

1988-12-01

340

Clinical Trial of the Outpatient Management of Pyelonephritis in Pregnancy  

PubMed Central

Objective: This study was designed to determine whether outpatient treatment of pyelonephritis in pregnancy can reduce costs without compromising safety or efficacy. Methods: Pregnant patients with uncomplicated initial episodes of acute pyelonephritis were considered for outpatient management. The outpatient treatment consisted of an initial dose of IV ceftriaxone (2 g), followed by daily outpatient IM ceftriaxone (2 g) until resolution of fever and flank tenderness, followed by a 10-day course of oral antibiotics. The study group was compared with a group requiring inpatient treatment and a historical control group meeting the criteria for outpatient management but having been treated as inpatients in the previous year. Results: Of the 34 treated as outpatients, only 4 (12%) required hospital admission and 1 developed an upper urinary tract recurrence. None of these patients had premature delivery or any other serious complication. The historical control group (N = 29) included 1 upper urinary tract recurrence, no preterm deliveries, and 1 case of acute respiratory disease syndrome. The outpatient group required an average of 3.4 daily outpatient visits compared with 3.9 days of hospitalization for the historical control group. The inpatient group (N = 39) was significantly more likely to require hospitalization >6 days (P = 0.0004), with a trend toward more frequent upper urinary tract recurrences (6/39 vs. 1/34, P = 0.08). The cost analysis revealed a 3-fold difference between outpatient and inpatient therapy ($1,100 vs. $3,350, P < 0.001). Conclusions: The outpatient treatment of selected patients with pyelonephritis in pregnancy as a promising approach to reducing costs warrants further investigation.

Garite, Thomas J.

1995-01-01

341

78 FR 6851 - Agency Information Collection (Dental Record Authorization and Invoice for Outpatient Services...  

Federal Register 2010, 2011, 2012, 2013

...2900-0335] Agency Information Collection (Dental Record Authorization and Invoice for Outpatient...SUPPLEMENTARY INFORMATION: Title: Dental Record Authorization and Invoice for Outpatient...proper administration of VA outpatient fee dental program. The associated...

2013-01-31

342

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

Code of Federal Regulations, 2010 CFR

...2009-10-01 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...

2009-10-01

343

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

Code of Federal Regulations, 2010 CFR

...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...

2010-10-01

344

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

Code of Federal Regulations, 2012 CFR

...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...

2012-10-01

345

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

Code of Federal Regulations, 2010 CFR

...hospital outpatient prospective payment system. 419.20 Section 419.20...MEDICARE PROGRAM PROSPECTIVE PAYMENT SYSTEM FOR HOSPITAL OUTPATIENT DEPARTMENT...Hospital Outpatient Prospective Payment System § 419.20 Hospitals...

2009-10-01

346

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

Code of Federal Regulations, 2010 CFR

...hospital outpatient prospective payment system. 419.20 Section 419.20...MEDICARE PROGRAM PROSPECTIVE PAYMENT SYSTEM FOR HOSPITAL OUTPATIENT DEPARTMENT...Hospital Outpatient Prospective Payment System § 419.20 Hospitals...

2010-10-01

347

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

Federal Register 2010, 2011, 2012, 2013

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

2010-02-18

348

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

Federal Register 2010, 2011, 2012, 2013

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

2010-12-17

349

Fabrication and characterization of cerium-doped barium titanate inverse opal by sol-gel method  

SciTech Connect

Cerium-doped barium titanate inverted opal was synthesized from barium acetate contained cerous acetate and tetrabutyl titanate in the interstitial spaces of a polystyrene (PS) opal. This procedure involves infiltration of precursors into the interstices of the PS opal template followed by hydrolytic polycondensation of the precursors to amorphous barium titanate and removal of the PS opal by calcination. The morphologies of opal and inverse opal were characterized by scanning electron microscope (SEM). The pores were characterized by mercury intrusion porosimetry (MIP). X-ray photoelectron spectroscopy (XPS) investigation showed the doping structure of cerium, barium and titanium. And powder X-ray diffraction allows one to observe the influence of doping degree on the grain size. The lattice parameters, crystal size and lattice strain were calculated by the Rietveld refinement method. The synthesis of cerium-doped barium titanate inverted opals provides an opportunity to electrically and optically engineer the photonic band structure and the possibility of developing tunable three-dimensional photonic crystal devices. - Graphical abstract: Cerium-doped barium titanate inverted opal was synthesized from barium acetate acid contained cerous acetate and tetrabutyl titanate in the interstitial spaces of a PS opal, which involves infiltration of precursors into the interstices of the PS opal template and removal of the PS opal by calcination.

Jin Yi [Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials, Science and Engineering, East China University of Science and Technology, Shanghai 200237 (China); Zhu Yihua [Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials, Science and Engineering, East China University of Science and Technology, Shanghai 200237 (China)], E-mail: yhzhu@ecust.edu.cn; Yang Xiaoling [Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials, Science and Engineering, East China University of Science and Technology, Shanghai 200237 (China); Li Chunzhong [Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials, Science and Engineering, East China University of Science and Technology, Shanghai 200237 (China); Zhou Jinghong [UNILAB, State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai 200237 (China)

2007-01-15

350

Ethnic diversity outpatient clinic in paediatrics  

PubMed Central

Background The health status of chronic sick ethnic minority children in the Netherlands is unequal compared with indigenous Dutch children. In order to optimize the health care for these children a specific patient-oriented clinic in ethnic-cultural diversity: the Mosaic Outpatient Clinic (MOC) was integrated in the general Paediatric Outpatient Departments (POPD) of three hospitals in Amsterdam. Methods Feasibility of the MOC, factors influencing the health care process and encountered bottlenecks in health care were studied in ethnic minority children with asthma, diabetes type 1 or metabolic disease originating from Morocco, Turkey and Surinam. Feasibility was determined by the number of patients attended, support from the paediatric medical staff and willingness of the patients to participate. Influences on the health care process comprised parents' level of knowledge of disease, sense of disease severity, level of effort, linguistic skills, health literacy, adherence to treatment and encountered bottlenecks in the health care process. Moreover, the number of admissions and visits to the POPD in the years before, during and after the MOC were analysed. Results In 2006 a total of 189 ethnic minority children were seen. Integration of the MOC within the general POPD of the hospital is feasible. The ability of the parents to speak and understand Dutch was found to be 58%, functional health literacy was 88%; sufficient knowledge of disease and sense of disease severity were 59% and 67%, respectively. The main bottlenecks in the healthcare process: poor knowledge of disease, limited sense of disease severity and low health literacy in the parents proved to be the best predictors for decreased adherence. After attending the MOC there was a decrease in the number of admissions and visits to the POPD for asthma while the number of visits increased in patients with diabetes and the amount of no-shows decreased in patients with a metabolic disease. Conclusion Integration of a MOC in the general POPD is feasible and appreciated by the parents, provides more insight in the problems ethnic minority children and their parents face and shows promising directions for optimizing adherence in these children.

2012-01-01

351

Using Barium Ions for Heavy-Atom Derivatization and Phasing of Xylanse ll from Trichoderma longibrachiatum  

SciTech Connect

This paper describes the use of barium chloride to produce a heavy-atom derivative of xylanase II crystals from Trichoderma longibrachiatum, which was obtained either by cocrystallization or soaking. SAD phasing led to interpretable electron-density maps that allowed unambiguous chain tracing. In the best case, with a data set collected at 9.5 keV, 88% of the residues were built, with 83% of the side chains assigned. The barium ions are found to mainly interact with main-chain carbonyl groups and water molecules. It is suggested that barium ions could also be used as a potential anomalous scatterer in the quick cryosoaking procedure for phasing.

Moiseeva,N.; Allaire, M.

2007-01-01

352

On the nature of striae in strontium barium niobate  

SciTech Connect

Strontium barium niobate crystals were grown by the Czochralski technique. These crystals were 15--20 mm in diameter and 25 to 75 mm long. Two types stride, designated as coarse and fine, were characterized. The coarse stride are optically dense and are spaced by 100 to 500 {mu}m apart; the fine striae are optically less dense and spaced 5--50 {mu}m apart. The origins of the stride are attributed to thermal fluctuations in the melt related to the control system and to rotation of the growing crystal in non-isothermal radial gradients. Analysis of the crystals would indicated that the coarse striae may contain increased concentrations of sodium.

Monchamp, R.R.; Mihalik, G.B.; Franks, L.A.

1993-12-31

353

Interband two-photon absorption in strontium barium niobate crystals  

NASA Astrophysics Data System (ADS)

Interband two-photon absorption in photorefractive strontium barium niobate crystals SrxBa1-xNb2O6 (x = 0.61, 0.75), both pure and doped with Ni and La ions, is studied under excitation by trains of 523.5-nm picosecond laser pulses. The two-photon absorption coefficients are found to vary from 0.17 to 0.31 cm GW-1 depending on the azimuth of the linear polarisation of the pump radiation and on the chemical composition of samples. The dependences of the transmission of crystals on the pump radiation intensity show a hysteresis related to induced one-photon absorption from excited levels.

Zverev, Petr G.; Ivleva, Lyudmila I.; Karasik, Aleksandr Ya; Lukanin, V. I.; Chunaev, D. S.

2012-07-01

354

Barium titanate nanocomposite capacitor FY09 year end report.  

SciTech Connect

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.

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

355

Polarization switching kinetics in ultrathin ferroelectric barium titanate film  

NASA Astrophysics Data System (ADS)

The investigation of polarization switching kinetics in an ultrathin barium titanate film reveals true threshold switching at a large coercive electric field, evidence that switching is of intrinsic thermodynamic nature, rather than of extrinsic nature initiated by thermal nucleation, which has no true threshold field. The switching speed of a 7 nm thick epitaxial film exhibits a critical slowing as the threshold is approached from above, a key characteristic of intrinsic switching. In contrast, a bulk crystal exhibits nucleation-initiated switching, which has no threshold, and proceeds even at fields well below the nominal coercive field, which was determined independently from the polarization-electric field hysteresis loop. Previously, this phenomenon was only reported for ultrathin ferroelectric polymer LangmuirBlodgett films. Since both the thermodynamic coercive field and the intrinsic switching kinetics are derived from the mean field theory of ferroelectricity, we expect that these phenomena will be found in other ferroelectric films at the nanoscale.

Gaynutdinov, R.; Minnekaev, M.; Mitko, S.; Tolstikhina, A.; Zenkevich, A.; Ducharme, S.; Fridkin, V.

2013-09-01

356

The Performance of Barium Sulfate Nanoparticles/polypropylene Hybrid Multifilament  

NASA Astrophysics Data System (ADS)

Nanosize barium sulfate (BaSO4) particles prepared with dodecyl benzene sulfonic acid (DBSA) in ethanol-water reaction system are used to prepare BaSO4/polypropylene (PP) nanocomposites by melt mixing method. It is then made into hybrid fibers by melt spinning and subsequent drawing with different ratios. The hybrid fibers are characterized by rheology, morphology, thermal stability and mechanical properties, respectively. The results indicate that the DBSA-modified BaSO4 can improve the spinnability of BaSO4/PP hybrid multifilament even at high BaSO4 nanoparticles concentration. DBSA can be used as compatibilizer to enhance the interface interaction of BaSO4/PP nanocomposites, because DBSA contains both hydrophobicity long alkyl chain and hydrophilic sulfonic group. Therefore, it can improve the performances of BaSO4/PP hybrid multifilament.

Li, Ying; Wang, Xuanjun; Mu, Xiaoxi; Zhang, Shujuan

2012-12-01

357

Syntheses and crystal structures of three barium uranium sulfides  

NASA Astrophysics Data System (ADS)

The barium uranium sulfides Ba3.69US6, BaUS3, and BaU2S5 have been synthesized at 1273, 1323, and 1323 K, respectively. The structures of these compounds have been determined by single-crystal X-ray diffraction methods. They crystallize in space groups D3d6-R3c, D2h16-Pnma, and C2h5-P21/c, respectively. Among these three ternaries and Ba2US6 the coordination geometries about the U atoms vary considerably. Ba3.69US6 is a mixed U4+/U5+compound whereas the others are U4+ compounds. The decreasing dimensionality of the four compounds with increasing Ba-to-U content shows the expected trend.

Mesbah, Adel; Ibers, James A.

2013-03-01

358

Properties of a nanocrystalline barium titanate on silicon humidity sensor  

NASA Astrophysics Data System (ADS)

A nanometric barium titanate (BaTiO3) film was fabricated on a silicon (SiO2/Si) substrate by the spin-coating method to make a resistive-type humidity sensor. The humidity sensing properties of the sensor were measured, including sensitivity, hysteresis, and response and recovery times. The sensing properties of the sensor did not change with the level of the applied voltage. The best linearity of the curve of impedance versus relative humidity (RH) appears at the frequency of 100 Hz. The capacitance of the sensor increases as RH increases, especially for low measurement frequency. The peaks of the dielectric loss of the humidity sensor move in the higher frequency direction as RH increases.

Wang, Jing; Wan, Hui; Lin, Qiuhua

2003-02-01

359

Investigating outpatient departments: implementable policies and qualitative approaches.  

PubMed

Modelling the operation of outpatient departments, with the aim of devising an appointment system that would reduce patient waiting time, was an early application area for O.R. Yet outpatients still spend an excessive amount of time waiting. This paper reports an investigation into the operation of outpatient departments. The attempt to arrive at a sensible policy is considered at length. It is concluded that the determination of an implementable policy, the education of participants into acceptance of that policy, and monitoring any policy once implemented are of paramount importance. The approach taken is briefly compared with qualitative and soft approaches. PMID:10272814

O'Keefe, R M

1985-08-01

360

[Improvement of outpatient dental care in the military district].  

PubMed

The paper presents proposals for improving outpatient dental care in the military area. To improve all types of outpatient dental care it is encouraged to use mobile multi-purpose field dental system based on chassis KamAZ, versatile portable dental kit. The construction kit has a modular design that supports rapid deployment of the dental office. For its operation is designed dental kit, which includes modern dental materials, instruments and medicines. Equipping the army medical service data development will help to improve outpatient dental care in the Army. PMID:21770311

Prokhvatilov, G I; Chernysh, V F; Grebnev, G A; Kanunnikov, V A

2011-03-01

361

SBN60, strontium-barium niobate at 100?K.  

PubMed

The title compound, Sr0.6Ba0.4Nb2O6 (strontium barium niobium oxide), belongs to the group of strontium-barium niobates with varying composition of Sr and Ba. Their general formula can be written as Sr x Ba1 - x Nb2O6. Below the Curie temperature, T c , these materials indicate ferroelectric properties. The Curie temperature for SBN60 is equal to 3460.5?K so the structure is in the ferroelectric phase at the measurement temperature of 100?K. Characteristic for this family of compounds is the packing along the z-axis. The NbO6 corner-sharing octa-hedra surround three types of vacancy tunnels with penta-gonal, square and triangular shapes. The Sr(2+) ions partially occupy two unique sites, the first one located inside the penta-gon and the second one in the square tunnels. Consequently, they are situated on the mirror plane and the inter-section of two glide planes, respectively. The site inside the penta-gonal tunnel is additionally disordered so that the same position is shared by Ba(2+) and Sr(2+) ions whereas another part of the Ba(2+) ion occupies a different position (relative occupancies 0.43:0.41:0.16). One of the Nb(V) atoms and three of the O(2-) ions occupy general positions. The second Nb(V) atom is located on the inter-section of the mirror planes. Two remaining O(2-) ions are located on the same mirror plane. Only the Nb(V) atom and one of the O(2-) ions which is located on the mirror plane are not disordered. Each of the remaining O(2-) ions is split between two sites, with relative occupancies of 0.52:0.48 (O(2-) ions in general positions) and 0.64:0.36 (O(2-) ion on the mirror plane). PMID:24098159

Stachowicz, Marcin; Gawryszewska, Olga; Swirkowicz, Marek A; Lukasiewicz, Tadeusz

2013-09-28

362

SBN60, strontium-barium niobate at 100 K  

PubMed Central

The title compound, Sr0.6Ba0.4Nb2O6 (strontium barium niobium oxide), belongs to the group of strontiumbarium niobates with varying composition of Sr and Ba. Their general formula can be written as SrxBa1 - xNb2O6. Below the Curie temperature, T c, these materials indicate ferroelectric properties. The Curie temperature for SBN60 is equal to 3460.5?K so the structure is in the ferroelectric phase at the measurement temperature of 100?K. Characteristic for this family of compounds is the packing along the z-axis. The NbO6 corner-sharing octahedra surround three types of vacancy tunnels with pentagonal, square and triangular shapes. The Sr2+ ions partially occupy two unique sites, the first one located inside the pentagon and the second one in the square tunnels. Consequently, they are situated on the mirror plane and the intersection of two glide planes, respectively. The site inside the pentagonal tunnel is additionally disordered so that the same position is shared by Ba2+ and Sr2+ ions whereas another part of the Ba2+ ion occupies a different position (relative occupancies 0.43:0.41:0.16). One of the NbV atoms and three of the O2? ions occupy general positions. The second NbV atom is located on the intersection of the mirror planes. Two remaining O2? ions are located on the same mirror plane. Only the NbV atom and one of the O2? ions which is located on the mirror plane are not disordered. Each of the remaining O2? ions is split between two sites, with relative occupancies of 0.52:0.48 (O2? ions in general positions) and 0.64:0.36 (O2? ion on the mirror plane).

Stachowicz, Marcin; Gawryszewska, Olga; Swirkowicz, Marek A.; Lukasiewicz, Tadeusz

2013-01-01

363

Barium and carbon fluxes in the Canadian Arctic Archipelago  

NASA Astrophysics Data System (ADS)

The seasonal and spatial variability of dissolved Barium (Ba) in the Amundsen Gulf, southeastern Beaufort Sea, was monitored over a full year from September 2007 to September 2008. Dissolved Ba displays a nutrient-type behavior: the maximum water column concentration is located below the surface layer. The highest Ba concentrations are typically observed at river mouths, the lowest concentrations are found in water masses of Atlantic origin. Barium concentrations decrease eastward through the Canadian Arctic Archipelago. Barite (BaSO4) saturation is reached at the maximum dissolved Ba concentrations in the subsurface layer, whereas the rest of the water column is undersaturated. A three end-member mixing model comprising freshwater from sea-ice melt and rivers, as well as upper halocline water, is used to establish their relative contributions to the Ba concentrations in the upper water column of the Amundsen Gulf. Based on water column and riverine Ba contributions, we assess the depletion of dissolved Ba by formation and sinking of biologically bound Ba (bio-Ba), from which we derive an estimate of the carbon export production. In the upper 50 m of the water column of the Amundsen Gulf, riverine Ba accounts for up to 15% of the available dissolved Ba inventory, of which up to 20% is depleted by bio-Ba formation and export. Since riverine inputs and Ba export occur concurrently, the seasonal variability of dissolved Ba in the upper water column is moderate. Assuming a fixed organic carbon to bio-Ba flux ratio, carbon export out of the surface layer is estimated at 1.8 0.45 mol C m-2 yr-1. Finally, we propose a climatological carbon budget for the Amundsen Gulf based on recent literature data and our findings, the latter bridging the surface and subsurface water carbon cycles.

Thomas, Helmuth; Shadwick, Elizabeth; Dehairs, Frank; Lansard, Bruno; Mucci, Alfonso; Navez, Jacques; Gratton, Yves; Prowe, Friederike; Chierici, Melissa; Fransson, Agneta; Papakyriakou, Tim N.; Sternberg, Erika; Miller, Lisa A.; Tremblay, Jean-Ric; Monnin, Christophe

2011-09-01

364

Barium and Carbon fluxes in the Canadian Arctic Archipelago  

NASA Astrophysics Data System (ADS)

The seasonal and spatial variability of dissolved Barium (Ba) in the Amundsen Gulf, southeastern Beaufort Sea, was monitored over a full year from September 2007 to September 2008. Barium displays a nutrient-type behavior with the highest concentrations observed at river mouths. The water column maximum is located at the base of the surface layer with lower concentrations above and below. The lowest concentrations are found in water masses of Atlantic origin, and Ba concentrations decrease eastward through the Canadian Arctic Archipelago. A three end-member mixing model comprising fresh water from sea-ice melt and rivers, as well as upper halocline water, was used to establish their relative contributions to the surface waters of the Amundsen Gulf. Based on water column and riverine Ba contributions, we assess the Ba depletion by particle sinking and subsequently estimate the carbon export production. In the upper 50 m of the water column of Amundsen Gulf, riverine Ba accounts for up to 15% of the dissolved Ba inventory, whereas up to 20% of the dissolved Ba inventory is depleted by barite (BaSO4) formation and export. Since riverine inputs and Ba export occur concurrently, the seasonal variability of dissolved Ba is moderate. Assuming a fixed organic carbon to barite flux ratio, carbon export out of the surface layer is estimated at 2 mol C m-2 yr-1. Finally, we propose a climatological carbon budget for the Amundsen Gulf based on recent literature data and our findings, the latter bridging the surface and subsurface water carbon cycles. This work is a contribution to the Canadian IPY programs CFL and GEOTRACES, to ArcticNet as well as to the IGBP/IHDP core project LOICZ.

Thomas, H.; Shadwick, E. H.; Woule Ebongue, V.; Lansard, B.; Navez, J.; Gratton, Y.; Prowe, F.; Mucci, A.; Chierici, M.; Fransson, A.; Papakyriakou, T. N.; Sternberg, E.; Miller, L. A.

2010-12-01

365

ALCOHOLISM AMONG OUTPATIENTS WITH PSYCHIATRIC MORBIDITY  

PubMed Central

Out of 881 randomly selected outpatients in four rural district hospitals in Kenya who underwent a two stage screening procedure for a psychiatric disorder, 24.9 percent had psychiatric morbidity. Further analysis showed that 12.7 percent of them had an alcohol related disorder as defined by ICD-9 (WHO, 1978) under the categories 291 and 303. For the screening of alcoholic cases brief MAST was used. The author found this instrument a quick method for identifying potential alcoholics. At present, such cases go undetected and untreated. Some important issues related to alcohol drinking in rural Kenya are discussed. Most of our patients drank the locally brewed alcoholic beverages of variable ethanol contents. The health planners and primary health workers (PHW) will have to pay more attention to the widely prevalent alcohol abuse which seems to masquerade in various forms of physical, social or psychological problems. Indeed, more intensive training of the PHWs in detecting and advising alcoholics maybe the best method in the rural setting.

Dhadphale, Manohar

1997-01-01

366

Outpatient parenteral antibiotic therapy: principles and practice.  

PubMed

Outpatient parenteral antimicrobial therapy (OPAT) refers to the administration of a parenteral antimicrobial in a non inpatient or ambulatory setting with the explicit aim of facilitating admission avoidance or early discharge. Whilst OPAT has predominantly been the domain of the infection specialist, the internal medicine specialist has a key role in service development and delivery as a component of broader ambulatory care initiatives such as "hospital at home". Main drivers for OPAT are patient welfare, reduction of risk of health care associated infection and cost-effective use of hospital resources. The safe practice of OPAT is dependent on a team approach with careful patient selection and antimicrobial management with programmed and adaptable clinical monitoring and assessment of outcome. Gram-positive infections, including cellulitis, bone and joint infection, bacteraemia and endocarditis are key infections potentially amenable to OPAT whilst resistant Gram-negative infections are of increasing importance. Ceftriaxone, teicoplanin, daptomycin and ertapenem lend themselves well to OPAT due to daily (or less frequent) bolus administration, although any antimicrobial may be administered if the patient is trained to administer and/or an appropriate infusion device is employed. Clinical experience from NHS Greater Glasgow and Clyde is presented to illustrate the key principles of OPAT as practised in the UK. Increasingly complex patients with multiple medical needs, the relative scarcity of inpatient resources and the broader challenge of ambulatory care and "hospital at home" will ensure the internal medicine specialist will have a key role in the future development of OPAT. PMID:23602223

Seaton, R A; Barr, D A

2013-04-18

367

Assessing anxious features in depressed outpatients  

PubMed Central

Both the 17-item Hamilton Rating Scale for Depression (HRSD17) and 30-item Inventory of Depressive Symptomatology Clinician-rated (IDS-C30) contain a subscale that assesses anxious symptoms. We used classical test theory and item response theory methods to assess and compare the psychometric properties of the two anxiety subscales (HRSDANX and IDS-CANX) in a large sample (N = 3453) of outpatients with non-psychotic major depressive disorder in the Sequenced Treatment Alternatives to Relieve Depression (STAR*D) study. Approximately 48% of evaluable participants had at least one concurrent anxiety disorder by the self-report Psychiatric Diagnostic Screening Questionnaire (PDSQ). The HRSDANX and IDS-CANX were highly correlated (r = 0.75) and both had moderate internal consistency given their limited number of items (HRSDANX Cronbachs alpha = 0.48; IDS-CANX Cronbachs alpha = 0.58). The optimal threshold for ascribing the presence/absence of anxious features was found at a total score of eight or nine for the HRSDANX and seven or eight for the IDS-CANX. It would seem beneficial to delete item 17 (loss of insight) from the HRSDANX as it negatively correlated with the scales total score. Both the HRSDANX and IDS-CANX subscales have acceptable psychometric properties and can be used to identify anxious features for clinical or research purposes.

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

2013-01-01

368

DNA/PLACES, barium event JAN: Quick-look field report of 'in situ' probe measurements  

NASA Astrophysics Data System (ADS)

On 12 December 1980, a 48 kg barium payload was launched from the A-15 site of the Eglin/Santa Rosa Island Test Range. The barium was released in the F sub 1-region of the ionosphere at an altitude of 182.7 km. Approximately 32 minutes later a second rocket was launched, carrying plasma diagnostics complement which included a pair of pulsed-plasma-probes and an ion mass spectrometer for direct measurements of electron density Ne, temperature Te, density fluctuations sigma Ne, associated density fluctuation power spectra Pn(k), and ion composition Mi. The barium release and all associated measurements have been designated by code name JAN. This report presents quick-look field analyses of pulsed-plasma-probe data. A brief description is given on the probe instrumentation, vehicle/payload performance, and "in situ" observations of barium cloud plasma densities and structure.

Szuszczewicz, E. P.; Holmes, J. C.; Lin, C. S.; Swinney, M.

1981-03-01

369

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

NASA Astrophysics Data System (ADS)

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.

Swift, D. W.

1985-04-01

370

Analysis and numerical simulation of the effect of ion Pedersen mobility on ionospheric barium clouds  

NASA Astrophysics Data System (ADS)

Several aspects concerning the phenomenology of barium cloud striations still lack a satisfactory explanation. The motivation for the present investigation was an unexplained phenomenon known as 'freezing'. For the purposes of the current study, the term 'freezing' is defined to mean the cessation of bifurcation on the part of a specific ionospheric structure. A description is provided of a mechanism whereby the barium ions, and the local electron density enhancement which they represent, may cease bifurcating. It is attempted to show that the Pedersen leakage mechanism is a viable candidate for the cessation of further bifurcation in barium clouds. In addition, it is found that this mechanism can produce sheets of barium at late times.

Zalesak, S. T.; Fedder, J. A.; Ossakow, S. L.

1983-10-01

371

Review of Medicare Outpatient Payments for Oxaliplatin in Virginia.  

National Technical Information Service (NTIS)

Oxaliplatin is a chemotherapy drug used to treat colorectal cancer. During our audit period (calendar year (CY) 2005), Medicare required hospital outpatient departments to bill one service unit for every 5 milligrams of oxaliplatin administered. Before Ju...

2009-01-01

372

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

Federal Register 2010, 2011, 2012, 2013

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

2011-08-10

373

Medicare Outpatient Physical Therapy Provider Manual (CMS PUB 9). Revisions.  

National Technical Information Service (NTIS)

The manual makes available to the outpatient physical therapy provider informational and procedural material needed for the prompt and accurate filing of claims for services furnished under the provisions of the Health Insurance for the Aged Act (Medicare...

2003-01-01

374

42 CFR 410.155 - Outpatient mental health treatment limitation.  

Code of Federal Regulations, 2010 CFR

...with the treatment of a mental, psychoneurotic...Brief office visits for the sole purpose of monitoring or changing drug prescriptions used in the treatment of mental, psychoneurotic...patient liability amounts for outpatient mental...

2010-10-01

375

[Guidelines for the safe outpatient practice of aesthetic surgery].  

PubMed

This paper presents guidelines for the safe outpatient practice of aesthetic surgery. These guidelines have been prepared by the Lombard Association of Plastic Surgery for Outpatients (ALChiPlA), an association confined to board certified plastic surgeons and holders of official authorizations issued by the Lombard ASL to perform outpatient surgery. The cornerstone of these guidelines is the health and safety of patients, who are turning to this type of surgery in ever increasing numbers. This is the first and thus far the only attempt of its kind and its value is increased by the fact that it has been prepared by specialists who have been carrying out this type of surgery in outpatient situations for years. PMID:20548270

Campiglio, G L; Bufo, S; De Sisto, L; Garassino, E; Gibelli, P L; Gilardino, P; Lucchesi, R; Muti, G F; Orlandi, A; Rapisarda, V; Tesauro, P; Todde, A

2010-04-01

376

Anesthesia for Same-Day or Outpatient Surgery  

MedlinePLUS

Anesthesia for Same-Day or Outpatient Surgery Share PRINT Print Home > Who Is An Anesthesiologist? > Detail Page Anesthesia for Same-Day Surgery The latest safe, short-acting anesthetic medications ...

377

Expulsion of Barium and Methane at Mud Volcanoes in the Gulf of Mexico  

NASA Astrophysics Data System (ADS)

Submarine mud volcanoes and cold-seeps along continental margins transfer methane from gas-charged marine sediments to the water column. Such methane venting is dynamic and may provide an important and variable supply of carbon to the ocean and atmosphere through time. Barite mounds and chimneys have been found around some modern mud volcanoes and seeps, and similar structures can be identified in the geological record (e.g., bedded barite deposits). These observations suggest that expelled methane-rich fluids are greatly enriched in dissolved barium. However, there are very few analyses of barium concentrations in these systems. Here, we examine the dissolved barium of pore fluids from a series of shallow piston cores across two submarine mud volcanoes in the Gulf of Mexico. Dissolved barium concentrations at 1.5 m below the seafloor at the Garden Bank volcano range from 18200 ? M at the center of the feature to 0.56 ? M on its flanks approximately 1 km away. Similarly, dissolved barium concentrations at the Mississippi Canyon volcano range from 15600 ? M to 0.50 ? M. Thus, the concentrations in the cores of the mud volcanoes are nominally 5 orders of magnitude greater than in mean ocean water ( 0.1 ? M). Anaerobic oxidation of upward flowing methane consumes sulfate, which leads to the dissolution of barite and release of barium to pore fluids. Because this mechanism alone cannot explain the extreme concentrations in the mud volcanoes, a deep source of barium may exist in the Gulf of Mexico strata. Our current work is focused on quantifying the fluxes and sedimentary fate of expelled barium at these locations. However, even if a large fraction of the barium precipitates adjacent to the sites of methane venting, fluid expulsion at mud volcanoes must significantly impact the barium cycle in the Gulf of Mexico. Conceivably, submarine mud volcanoes and cold-seeps along continental margins are a major source of barium to the deep ocean, a concept that has profound implications with respect to certain paleoceanographic reconstructions.

Castellini, D. G.; Dickens, G. R.; Snyder, G. T.; Gilhooly, W. P.; Ruppel, C. D.

2003-12-01

378

Composition and structure measurements in an ionospheric barium cloud. Final report  

Microsoft Academic Search

A 48 kg barium payload was launched from Eglin Air Force Base, Florida on 12 December 1980 at 2311 GMT and detonated at 183.7 km. At 2342:50.25 GMT, a second rocket, instrumented with an ion mass spectrometer and pulsed plasma probes, was fired to traverse the barium cloud. Composition, ion density, and structure measurements were acquired up to 241.2 km

R. Narcisi; E. Trzcinski; G. Federico; L. Wlodyka; P. Bench

1981-01-01

379

H/sup -/ production in a small multicusp ion source with addition of barium  

SciTech Connect

The effect on H/sup -/ production by adding barium to a hydrogen discharge, in a small magnetically filtered multicusp ion source, has been investigated. It is found that the addition of barium can increase the H/sup -/ output by a factor of 30. A strong dependence of H/sup -/ output on the temperature of the ion source wall has also been observed.

Walther, S.R.; Leung, K.N.; Kunkel, W.B.

1989-01-16

380

Sol-gel processing of barium cerate-based electrolyte films on porous substrates  

Microsoft Academic Search

Barium cerate-based materials exhibit high ionic conductivities at intermediate temperatures and thus offer great potential for solid oxide fuel cell (SOFC) applications. In particular, BaCesb{0.8}Gdsb{0.2}0sb3(BCG) exhibits the highest ionic conductivities amongst the barium cerate-based materials studied. The performance of SOFCs can be further enhanced by fabricating these electrolytes in a thin-film form to reduce the resistive losses. In this work,

Vishal Agarwal

1997-01-01

381

Reactions of barium-yttrium-copper oxides with aqueous media and their applications in structural characterization  

SciTech Connect

Leach studies carried out on barium-yttrium-copper oxides in water and in 0.05 M KI have shown the selective occurrence of two processes, vic. leaching of barium and loss of excess oxygen, e.g. through oxidation of iodide. The extent of these two processes during the early stages is much larger in the case of open structures, e.g. the tetragonal phase. Accordingly, leaching in aqueous media provides a sensitive and convenient method of structural characterization.

Barkatt, A.; Hojaji, H.; Michael, K.A. (Vitreous State Univ., Washington, DC (USA))

1987-07-01

382

Generation of sub-100-fs Stokes pulses upon SRS in a barium nitrate crystal  

SciTech Connect

72-fs pulses are generated at the first Stokes component frequency upon stimulated Raman scattering in a barium nitrate crystal for the radiation of the Ti{sup 3+}:Al{sub 2}O{sub 3} laser with the pulse duration of 50 fs. The energy efficiency of conversion is 20%. The barium nitrate crystal was optically pumped by two consecutive orthogonally polarised chirped pulses with the following time compression of the Stokes radiation pulse. (nonlinear optical phenomena)

Konyashchenko, Aleksandr V; Losev, Leonid L [P N Lebedev Physical Institute, Russian Academy of Sciences, Moscow (Russian Federation); Tenyakov, S Yu ['Avesta-project' Ltd., Troitsk, Moscow Region (Russian Federation)

2010-10-15

383

The Effect of High vs Low Density Barium Preparations on the Quantitative Features of Swallowing  

Microsoft Academic Search

We compared the effect of high-density and low-density barium preparations on the quantitative features of swallowing. The two barium preparations differed primarily in density but also differed somewhat in viscosity. Concurrent videofluoroscopic and manometric studies were done in nine healthy control subjects. Videofluoroscopy was recorded in the lateral projection at 30 frames\\/sec while concurrent manometry was done with five intraluminal

Wylie J. Dodds; Benson T. Massey; Mark K. Kern

1989-01-01

384

Effects of strontium and barium ions on calcium bindings and transport in nerve cells  

Microsoft Academic Search

Absorption of strontium and barium ions by intracellular organelles after loading the cell with these cations together with their effects on Ca release from the intracellular stores were investigated in neurons isolated fromHelix pomatia using fura-2, a Ca-sensitive fluorescent probe. It was found that strontium ions can successively replace intracellular calcium ions in this response, whereas barium ions are not

Yu. M. Usachev; S. L. Mironov

1989-01-01

385

Comparison of the reflectance characteristics of polytetrafluoroethylene and barium sulfate paints  

NASA Astrophysics Data System (ADS)

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.

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

1984-04-01

386

Size and temperature induced phase transition behaviors of barium titanate nanoparticles  

Microsoft Academic Search

High density, almost impurity-free and defect-free barium titanate (BaTiO3) fine particles with various sizes from 20 to 1000 nm were prepared by the two-step thermal decomposition of barium titanyl oxalate and postheating treatment. The crystal structures of these particles were investigated as a function of the size and the temperature using synchrotron radiation x-ray diffraction (XRD) measurement. As a result,

Takuya Hoshina; Hirofumi Kakemoto; Takaaki Tsurumi; Satoshi Wada; Masatomo Yashima

2006-01-01

387

Barium effects in Phaseolus aureus, Cephalandra indica , Canna indica, Beta vulgaris, Triticum aestivum and Lactuca sativa  

Microsoft Academic Search

Barium chloride at 0.1 mM concentration inhibited elongation of mungbean (Phaseolus aureus) roots more strongly than elongation of hypocotyls. Root growth was completely inhibited at 80 mM and there was no germination\\u000a at 100 mM. Respiration rates which were directly proportional to seedling vigour declined at varying degrees at the growth-inhibitory\\u000a concentrations of BaCl2. Barium retarded senescence in isolated leaf

Rina Debnath; S. MUKttERJI

1982-01-01

388

Coprecipitation of radium with barium sulfate from calcium-containing solutions  

Microsoft Academic Search

Precipitation of radium with barium sulfate from solutions obtained on treatment of thorium-containing industrial wastes has been studied by stepwise regressive analysis. The mathematical model of the process selected on an Elektronika-DZ-28 computer made it possible to prove that, unlike calcium-free solutions, coprecipitation of radium with barium sulfate from solutions highly concentrated in calcium depends on the ratio of the

A. V. Belkin; Yu. P. Kudryavskii; S. A. Anferov

1988-01-01

389

Structural, optical and magnetic properties of Fe-doped barium stannate thin films grown by PLD  

NASA Astrophysics Data System (ADS)

Deposition of BaSnO3 on a substrate like fused silica is more economical than other single crystalline substrates currently being used.5 at% Fe doped barium stannate thin films exhibit maximum crystallinity and transparency over 85% in the visible region.Room temperature ferromagnetism exhibited by 5 and 10 at% Fe doped barium stannate powder and film.The surface roughness of the films revealed low surface roughness for all films investigated.

James, K. K.; Aravind, Arun; Jayaraj, M. K.

2013-10-01

390

Synthesis of barium hexaferrite for magnetic recording media using the KCl flux system  

Microsoft Academic Search

Individual and fine crystals of barium hexaferrite were prepared by a modified flux method using the KCI flux system. Co2+-Ti4+-substituted barium hexaferrite with a homogeneous composition was synthesized at 950 C for 5 h or at 1000 C for 1 h from a mixture of BaCO3, Fe2O3, CoO and TiO2 with 30 wt% KCI added. Laboratory-prepared fine Fe2O3, was preferred

Kazuo Higuchi; Shinako Takahashi; Hideaki Itoh; Shigeharu Naka

1988-01-01

391

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

Microsoft Academic Search

Aluminium doped barium and strontium hexaferrite nanoparticles BaAlxFe(12?x)O19 and SrAlxFe(12?x)O19 were synthesised via a solgel 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

Neil J.. Shirtcliffe; Simon Thompson; Eoin S. OKeefe; Steve Appleton; Carole C.. Perry

2007-01-01

392

X-ray diffraction studies on aluminum-substituted barium hexaferrite  

Microsoft Academic Search

Effect of aluminum substitution in barium hexaferrite was studied following the hydrothermal precipitationcalcination techniques. It was attempted to prepare aluminum-substituted barium hexaferrites with compositions BaAlxFe12?xO19 having x=2,4, 6, 8 and 10. The precursors were prepared by using stoichiometric amounts of Ba, Al and Fe3+ nitrate solutions with urea as the precipitating agent. The hydrothermally prepared precursors were calcined at temperatures

D. Mishra; S. Anand; R. K. Panda; R. P. Das

2004-01-01

393

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

NASA Astrophysics Data System (ADS)

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 51011 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.

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

1983-12-01

394

Role of the modified barium swallow in management of patients with dysphagia  

Microsoft Academic Search

The modified barium swallow is a radiographic (videofluoroscopic) procedure designed to define the anatomy and physiology of the patients oropharyngeal swallow and examine the effectiveness of selected rehabilitation strategies designed to eliminate aspiration or excess oral or pharyngeal residue (the symptoms of the patients dysphagia). Rehabilitation strategies introduced during the modified barium swallow after the patients oropharyngeal anatomy and physiology

JERI A. LOGEMANN

1997-01-01

395

Investigation of rare earth-doped barium titanate thin films and their optical properties  

Microsoft Academic Search

Rare-earth-doped barium titanate thin films were studied for potential use as an optical amplification medium. Factors determining their luminescence efficiency and emission linewidth were investigated since these parameters govern the optical gain. Metal-organic chemical vapor deposition was used to prepare BaTiO3 films on different oxide substrates using a liquid barium precursor, Ba(hfa)2PEB. The phase purity, degree of crystallinity, and epitaxy

Andrew R. Teren

2001-01-01

396

Sol-gel processing and properties of cerium doped Barium Strontium Titanate thin films  

Microsoft Academic Search

A stock solution sol-gel based method for making Barium Strontium Titanate (BST) thin films has been developed. A modified titanium alkoxide was combined with a barium and\\/or strontium inorganic salt in methoxyethanol and ethylene glycol to form the solution. The effect of chemistry on the stability of this BST solution is discussed. The crystallization temperature of 700725C for rapid thermally

M. Sedlar; M. Sayer; L. Weaver

1995-01-01

397

Effects of composition and calcination temperature on morphology and structure of barium modified zirconia nanoparticles  

Microsoft Academic Search

Co-precipitation of zirconyl chloride and barium chloride followed by supercritical ethanol drying was used to synthesize the barium modified zirconia nanoparticles. BET surface area, X-ray diffraction (XRD) and atomic force microscopy (AFM) measurements were employed for structural and morphological characterization. Crystallite particles of ?10 to 50nm in size with cross-linking boundaries were formed during heat treatment. Results show that the

Aiguo Liu; Kafui Nyavor; Zhimin Li; Nosa O Egiebor

2004-01-01

398

Maggot d[eacute]bridement therapy in outpatients  

Microsoft Academic Search

Sherman RA, Sherman J, Gilead L, Lipo M, Mumcuoglu KY. Maggot d[eacute]bridement therapy in outpatients. Arch Phys Med Rehabil 2001;82:1226-9. Objective: To identify the benefits, risks, and problems associated with outpatient maggot therapy. Design: Descriptive case series, with survey. Setting: Urban and rural clinics and homes. Participants: Seven caregivers with varying levels of formal health care training and 21 ambulatory

Ronald A. Sherman; Julie Sherman; Leon Gilead; Mordechai Lipo; Kosta Y. Mumcuoglu

2001-01-01

399

Outpatient management of acute mastoiditis with periosteitis in children  

Microsoft Academic Search

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),

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

1998-01-01

400

Totally Tubeless Outpatient Percutaneous Nephrolithotomy: Initial Case Report  

PubMed Central

We report the first case of totally tubeless outpatient percutaneous nephrolithotomy (PCNL). Our patient was discharged home safely less than 4 hours following uncomplicated PCNL with no nephrostomy tube, ureteral stent, or urethral catheter. Follow-up the next day in clinic confirmed that the procedure was successful, as the patient was clinically well and stone free. To our knowledge, this is the first case report of totally tubeless (no nephrostomy, no ureteral stent) PCNL performed on a truly outpatient basis.

Beiko, Darren; Samant, Meghana; McGregor, Thomas B.

2009-01-01

401

Religious values in a group of psychiatric outpatients.  

PubMed

Religious values were investigated in a group of psychiatric outpatients using the Allport, Vernon and Lindzey Study of Values and the Revised Symptom Checklist-90-Revised. Scores of 70 psychiatric patients were compared with those of a control group of 50 university staff and students. Analysis indicated that scores for religious values was significantly lower in the outpatient group than in the control group. There was a low significant correlation between religious values and anxiety (-.26) and depression (-.23). PMID:12841443

Mirzamani, Mahmoud; Mohammadi, Mohammad Reza

2003-06-01

402

Inpatient vs outpatient treatment for substance dependence revisited  

Microsoft Academic Search

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

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

1993-01-01

403

Quality of life in asthmatic outpatients.  

PubMed

Asthma patients incur a great cost in terms of loss of quality of life. The purpose of this study is to evaluate the relative contribution and relationship of several patient- and disease-related factors, measured by several variables, to the quality of life in adults with asthma. Two hundred and ten asthmatic outpatients over 18 years old, registered in a Family Health Unit, were randomly selected to complete the Asthma Quality of Life (AQLQ) and Short Form Generic questionnaires (SF-36), respectively. Single and multiple linear regression models were developed to explain the variability of the summary scores of AQLQ and Physical and Mental Health SF-36. As potential predictors, the following independent variables were used: gender, age, number of comorbidities, asthma severity following the Global Initiative for Asthma (GINA) criteria, asthma control (measured by ACQ questionnaire), %FEV1 (forced expiratory volume in the first second) and, for the first time, Graffar Score to assess socioeconomical features. The Graffar Score is an index that divides the population in 5 socioeconomic layers. We report the best Adjusted R Square of these models published in the literature, ranging from 0.40 to 0.76. Women showed poorer quality of life than men. The best predictor of AQLQ was ACQ, followed by Asthma Severity, Gender and %FEV1. The best predictors of Physical and Mental Health SF-36 were, by decreasing importance, ACQ, number of comorbidities, Gender and Graffar Score. We note that the variable number of comorbidities was included in both SF-36 models, but not in AQLQ model. Asthma Severity and %FEV1 did not enter into SF-36 models. We conclude that besides clinical and functional measures, the evaluation process of the overall health status must incorporate quality-of-life measures. PMID:18259992

Almada Lobo, Filipa; Almada-Lobo, Bernardo

404

Outpatient tubeless percutaneous nephrolithotomy: the initial case series  

PubMed Central

Introduction: Percutaneous nephrolithotomy (PCNL) has traditionally been performed on an inpatient basis. To the best of our knowledge, this is the first report of tubeless PCNL on a completely outpatient basis. The purposes of this study were to assess the safety and efficacy of outpatient PCNL. Methods: We reviewed the initial consecutive outpatient tubeless PCNLs performed at our institution by a single surgeon. Patients were discharged home the day of surgery only after meeting strict discharge criteria. Preoperative, intraoperative and postoperative data were collected prospectively. Results: Outpatient tubeless PCNL was performed in 3 patients. The mean maximum stone diameter was 14 mm. The average hospital stay was 175 minutes. All 3 patients were discharged home in stable condition after meeting all of the inclusion criteria. There were no emergency room visits or hospital readmissions postoperatively. The mean follow-up period was 47 days. All stones were calcium oxalate and the stone free rate was 100%. There were no minor or major complications. Conclusion: In properly selected patients, outpatient tubeless PCNL is safe and effective. Our initial experience with outpatient PCNL has been favourable and warrants further investigation in a larger patient population.

Beiko, Darren; Lee, Linda

2010-01-01

405

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

NASA Astrophysics Data System (ADS)

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 day at different concentrations and groups 2 and 4 over 2 days. The barium volume to drink the day before CTC was 750 ml in groups 1 and 2 and 50 ml in groups 3 and 4. The fluid, density measurements of the fecal residue and tagging efficacy were evaluated. All fecal residue with densities >= 150 H.U. was electronically labeled. Per segment a visual labeling score (0, 25, 50, 75, 100%) was performed. The fluid was evaluated according to its proportion to the maximum anteroposterior diameter of the colonic segment where it was detected. No significant differences in densities of tagged residue were detected. The visual labeling scores varied between 90 and 100% in all segments. There were 6 fluid levels: 5 covering < 10% and one covering 50% of the colonic lumen. The lowest density of the fluid was 360 H.U. In this preliminary study we could conclude that CTC without cathartic cleansing and with barium produced efficient labeling of fecal residue. The barium intake could be reduced to one day and to 50 ml.

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

2004-04-01

406

Medicare Outpatient Physical Therapy and Comprehensive Outpatient Rehabilitation Facility Manual. HCFA/PUB-9 through Rev. 87.  

National Technical Information Service (NTIS)

The manual makes available to the outpatient physical therapy provider informational and procedural material needed for the prompt and accurate filing of claims for services furnished under the provisions of the Health Insurance for the Aged Act (Medicare...

1989-01-01

407

Medicare: Outpatient Physical Therapy and Comprehensive Outpatient Rehabilitation Facility Manual. HFCA/PUB-9 through Revision 91.  

National Technical Information Service (NTIS)

The manual makes available to the outpatient physical therapy provider informational and procedural material needed for the prompt and accurate filing of claims for services furnished under the provisions of the Health Insurance for the Aged Act (Medicare...

1990-01-01

408

Outpatient clinic waiting times and non-attendance as indicators of quality  

Microsoft Academic Search

This paper examined outpatient waiting times, their association with perceptions of service quality and whether concern about waiting times influences attendance. A postal survey was conducted with two adult general hospital outpatient departments. Random samples of 500 outpatient attenders and 250 non-attenders were invited to take part in the survey one week following an outpatient clinic appointment. Patient waiting time

K. McCarthy; H. M. McGee; C. A. OBoyle

2000-01-01

409

Barium in Deep-Sea Sediment: A Geochemical Proxy for Paleoproductivity  

NASA Astrophysics Data System (ADS)

We used sediment traps to define the particulate fluxes of barium and organic carbon and investigate the use of barium as a proxy for ocean fertility. Strong correlations between Corg and Ba fluxes indicate a link between upper ocean biological processes and barium flux to the seafloor. The ratio of organic carbon to barium decreases systematically with water depth. Data from 10 sites indicate that organic debris settling from the 200-m depth has a Corg /Ba ratio of approximately 200. The systematic decrease in this ratio with increasing water depth results from the simultaneous decay of organic matter and uptake of Ba in settling particles. This behavior provides additional evidence that the formation of barite in oceanic particles is a consequence of decomposition/uptake in microenvironments rather than the secretion of barite by specific organisms. The decrease of the Corg/Ba ratio with depth is greatest in the North Pacific followed by the equatorial Pacific and is lowest in the western Atlantic. Since this spatial pattern is consistent with the variations in the deep-ocean barium contents which increase along the path of bottom water flow from the Atlantic to the North Pacific, it suggests that the particulate barium uptake and flux is enhanced by higher barium contents in the intermediate and deep waters of the ocean. Consequently, we have combined our particle flux data with existing water column Ba data to define an algorithm relating new productivity, dissolved barium contents, water depth, and particulate barium flux. This relationship provides a basis of applying barium flux measurements in sediments to estimating new production. In order to use barium as an indicator of productivity, it will be necessary to evaluate inputs from hydrothermal and aluminosilicate sources and xenophyophors. The application of a sequential leach procedure to the trap material indicates that 50-70% of the Ba in settling particles is in the form of barite and the remaining is adsorbed or bound to carbonates. Normative analysis demonstrates that in nearshore areas the contribution of barium from aluminosilicate sources can dominate that from biogenic inputs. It appears that normative estimates of biogenic barium contents can be made with accuracy if less than 50% of the Ba is associated with aluminosilicates; i.e., is of terrigenous origin. Since diagenetic mobilization of Ba can occur in reduced and suboxic sediments, highly productive nearshore areas also are likely to be inappropriate sites to use Ba measurements as productivity indicators. Comparisons between the rain rates of particulate Ba to the seafloor and the burial rate indicate that approximately 30% of the Ba rain is preserved. Although the preservation factor does not appear to be constant, it may be possible to predict the extent of preservation from an empirical relationship with the mass accumulation rate. These observations indicate that measurement of Ba burial fluxes in sediments can provide quantitative information on the paleoproductivity of the oceans. Joining the relationship between barium rain and burial with the barium and organic carbon algorithm, we make estimates of the new production in the northern California Current during the last 18,000 years. This calculation suggests that new production was at least a factor of 2 lower at this site during the last glacial maximum.

Dymond, Jack; Suess, Erwin; Lyle, Mitch

1992-04-01

410

NO{sub x} storage in barium-containing catalysts  

SciTech Connect

The effect of key parameters on the characteristics of barium oxide-based NO{sub x} storage catalysts was systematically investigated. Model Pt/BaO/Al{sub 2}O{sub 3}, BaO/Al{sub 2}O{sub 3}, Pt-Rh/Al{sub 2}O{sub 3}, and Pt-Rh/BaO/Al{sub 2}O{sub 3} catalysts were prepared and evaluated with respect to NO{sub x} storage capacity using transient flow reactor studies, temperature-programmed desorption studies (TPD), and in situ Fourier transform infrared (FTIR) absorption spectroscopy. The influence of temperature, storage and regeneration times, NO{sub x} source (NO or NO{sub 2}), oxygen concentration, reducing agent (C{sub 3}H{sub 6}, C{sub 3}H{sub 8}, CO, or H{sub 2}), and carbon dioxide concentration in NO{sub x} storage capacity was studied. Significant amounts of NO{sub x} were found to be stored in the catalysts containing both barium oxide and noble metals. For these catalysts the following observations were made: (1) maximum NO{sub x} storage was observed at about 380 C; (2) around this temperature no significant differences between NO and NO{sub 2} on NO{sub x} storage capacity could be observed; (3) a slow increase in stored NO{sub x} could be observed with increasing oxygen concentration during the lean phase; (4) significant NO{sub x} desorption peaks, mainly of NO, were observed immediately after the switch from lean to rich conditions; and (5) at about 380 C the in situ FTIR spectra show characteristic nitrate pea/ks in the region 1300--1400 cm{sup {minus}1} when NO{sub x} was stored under lean conditions and isocyanate peaks around 2230 cm{sup {minus}1} when the catalysts were regenerated under rich conditions in the presence of hydrocarbons. The step leading to stored NO{sub x} is believed to involve NO{sub 2} and the presence of atomic oxygen. During the rich period, the noble metal surfaces are probably reduced, leading to breakthrough peaks when NO desorbs.

Fridell, E.; Skoglundh, M.; Westerberg, B.; Smedler, G. [Chalmers Univ. of Technology, Goeteborg (Sweden); Johansson, S. [Chalmers Univ. of Technology and Goeteborg Univ. (Sweden). Dept. of Applied Physics

1999-04-25

411

Thermal properties of barium complexes used for depositing thin films of YBa 2 Cu 3 O 7 superconductors  

Microsoft Academic Search

The thermal properties of several barium containing complexes are compared by using thermogravimetric analysis and solids\\u000a probe mass spectrometry. The properties of complexes containing flourinated and non-fluorinated ?-diketonates with and without\\u000a the presence of a polyether to occupy additional barium coordination sites are compared. Barium complex thermal properties\\u000a are heavily dependent on the structure of the ?-diketones and polyether comprising

H. D. Inerowicz; R. L. White

1995-01-01

412

Ferroelectric domain periodicities in nanocolumns of single crystal barium titanate  

NASA Astrophysics Data System (ADS)

A focused ion beam microscope has been used to mill rectangular ``picture-frame'' shapes from single crystal barium titanate. The lengths of the sides of the picture frames were of the order of 3-5 ?m, while the side width and thickness dimensions were of the order of 100-500 nm. Such aspect ratios meant that each of the frame sides approximates to a column with rectangular cross section. Scanning transmission electron microsopy was used to characterize the ferroelectric domain configurations associated with these nanocolumns. It was found that conventional stripe domain patterns occurred in all cases, down to columnar cross-section sizes of the order of ~100100 nm2. Despite the geometry of the columns rendering the ferroelectric as shape constrained in two dimensions, the domain periodicity was only noticeably sensitive to variations in the magnitude of one of those dimensions. Such observations were rationalized using arguments based on those used by Kittel [Phys. Rev. 70, 965 (1946)] and Mitsui and Furuichi [Phys. Rev. 90, 193 (1953)] for predicting the equilibrium domain periodicities in macroscopic slabs of ferroic material.

Schilling, A.; Bowman, R. M.; Gregg, J. M.; Catalan, G.; Scott, J. F.

2006-11-01

413

Communication: Barium ions and helium nanodroplets: Solvation and desolvation  

SciTech Connect

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.

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

2012-08-07

414

Growth and characterization of barium oxide nanoclusters on YSZ(111)  

SciTech Connect

Barium oxide (BaO) was grown on YSZ(111) substrate by oxygen-plasma-assisted molecular beam epitaxy (OPA-MBE). In-situ reflection high-energy electron diffraction, ex-situ x-ray diffraction, atomic force microscopy and x-ray photoelectron spectroscopy have confirmed that the BaO grows as clusters on YSZ(111). During and following the growth under UHV conditions, BaO remains in single phase. When exposed to ambient conditions, the clusters transformed to BaCO3 and/or Ba(OH)2 H2O. However, in a few attempts of BaO growth, XRD results show a fairly single phase cubic BaO with a lattice constant of 0.5418(1) nm. XPS results show that exposing BaO clusters to ambient conditions results in the formation BaCO3 on the surface and partly Ba(OH)2 throughout in the bulk. Based on the observations, it is concluded that the BaO nanoclusters grown on YSZ(111) are highly reactive in ambient conditions. The variation in the reactivity of BaO between different attempts of the growth is attributed to the cluster size.

Nachimuthu, Ponnusamy; Kim, Yong Joo; Kuchibhatla, Satyanarayana V N T; Yu, Zhongqing; Jiang, Weilin; Engelhard, Mark H.; Shutthanandan, V.; Szanyi, Janos; Thevuthasan, Suntharampillai

2009-08-13

415

Electrical properties of lanthanum doped barium titanate ceramics  

SciTech Connect

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.

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

416

Beta Decay Studies of Short Lived Barium Isotopes  

NASA Astrophysics Data System (ADS)

The half-lives and relative intensities of several short lived neutron rich isotopes, with atomic numbers between 54 and 57, produced in the spontaneous fission of californium-252 were determined. This was accomplished from the study of the time variation of the K X-ray yields of these isotopes. A transport system which allowed us to study isotopes with half-lives less than 10 seconds was developed. Mass assignments were made by comparing the experimental values of the half-lives with known values. A beta K X-ray coincidence technique was used to obtain the barium beta spectrum in coincidence with lanthanum K X -rays. A Kurie plot was performed on the spectrum to determine the beta groups. The probable origin of each beta group was determined through a comparison of the relative intensities of the isotopes and beta groups. Four beta groups probably from the decay of Ba-145 were revealed. The end point energies of these beta groups are 3870 (+OR-) 432 keV, 2772 (+OR-) 112 keV, 1894 (+OR-) 58 keV, and 746 (+OR-) 38 keV. The three lowest energy groups have not been observed before.

Bendall, Charles Skipwith

417

Nanofunctionalized zirconia and barium sulfate particles as bone cement additives  

PubMed Central

Zirconia (ZrO2) and barium sulfate (BaSO4) particles were introduced into a methyl methacrylate monomer (MMA) solution with polymethyl methacrylate (PMMA) beads during polymerization to develop the following novel bone cements: bone cements with unfunctionalized ZrO2 micron particles, bone cements with unfunctionalized ZrO2 nanoparticles, bone cements with ZrO2 nanoparticles functionalized with 3-(trimethoxysilyl)propyl methacrylate (TMS), bone cements with unfunctionalized BaSO4 micron particles, bone cements with unfunctionalized BaSO4 nanoparticles, and bone cements with BaSO4 nanoparticles functionalized with TMS. Results demonstrated that in vitro osteoblast (bone-forming cell) densities were greater on bone cements containing BaSO4 ceramic particles after four hours compared to control unmodified bone cements. Osteoblast densities were also greater on bone cements containing all of the ceramic particles after 24 hours compared to unmodified bone cements, particularly those bone cements containing nanofunctionalized ceramic particles. Bone cements containing ceramic particles demonstrated significantly altered mechanical properties; specifically, under tensile loading, plain bone cements and bone cements containing unfunctionalized ceramic particles exhibited brittle failure modes whereas bone cements containing nanofunctionalized ceramic particles exhibited plastic failure modes. Finally, all bone cements containing ceramic particles possessed greater radio-opacity than unmodified bone cements. In summary, the results of this study demonstrated a positive impact on the properties of traditional bone cements for orthopedic applications with the addition of unfunctionalized and TMS functionalized ceramic nanoparticles.

Gillani, Riaz; Ercan, Batur; Qiao, Alex; Webster, Thomas J

2010-01-01

418

Synthesis of Barium hexaferrite nanoparticles for functional multilayers  

NASA Astrophysics Data System (ADS)

Magnetic barium ferrite (BaFe12O19 or BaM) nanoparticles were synthesized by a two system microemulsion process. X-ray diffraction of these nanoparticles confirmed the presence of a dominant hexagonal BaM phase. The magnetic characterization of the nanoparticles was performed using a Physical Properties Measurement System (PPMS). The M-H hysteresis of the BaM, at 5K and 300K, displays a saturation magnetization of 68 emu/g, 48 emu/g and large coercivities of 2300 Oe, 3100 Oe respectively, consistent with bulk BaM. The zero field cooled (ZFC) and field cooled (FC) curves illustrate that superparamagnetism was not present in the BaM below 300K. These particles will be used to prepare multilayers of ferroelectric and ferromagnetic films by depositing on a ferroelectric polymer (polyvinylidene fluoride) matrix using the Langmuir-Blodgett technique. The functional properties of these multilayers will be discussed. Work supported by NSF grant #CTS-0408933 and NSF Integrated Interdisciplinary Nanoscience REU DMR 0243997.

Morrow, S. L.; Frey, N. A.; Srinath, S.; Srikanth, H.

2006-03-01

419

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

DOEpatents

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.

Lu, Peizhen Kathy; Mahapatra, Manoj Kumar

2013-09-24

420

Hydrogen diffusion in Lead Zirconate Titanate and Barium Titanate  

SciTech Connect

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.

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

2012-08-28

421

The thermophysical properties of calcium and barium zirconium phosphate  

NASA Astrophysics Data System (ADS)

The thermophysical and structural properties of calcium and barium zirconium phosphate ceramics (CZP and BZP) have been investigated for their potential candidacy as actinide hosts for inert matrix fuels (IMF) in nuclear reactors. These phosphate ceramics, which can accommodate minor actinides as well as the resulting fission products, are found to be thermally stable to 1600 C in air, however they begin to decompose in an inert atmosphere above approximately 1400 C. The heat capacity, thermal conductivity and bulk thermal-expansion were measured from room temperature up to 1200 C. Structural changes in this temperature region as well as the anisotropic thermal-expansion behaviour were studied using high-temperature X-ray diffraction. A phase change from R-3 to R-3c was identified for Ba0.5Zr2(PO4)3 near 880 C. The thermal conductivity for these ceramics at 1000 C was found to be 1.0 W m-1 K-1, a relatively low thermal conductivity that was increased to 5.0 W m-1 K-1 at 1000 C for BZP:Ni (25:75 mass ratio) cermet composites.

Gregg, Daniel J.; Karatchevtseva, Inna; Triani, Gerry; Lumpkin, Gregory R.; Vance, Eric R.

2013-10-01

422

Flexoelectric sensing using a multilayered barium strontium titanate structure  

NASA Astrophysics Data System (ADS)

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.

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

2013-11-01

423

Hydrogen diffusion in lead zirconate titanate and barium titanate  

NASA Astrophysics Data System (ADS)

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.

Alvine, K. J.; Vijayakumar, M.; Bowden, M. E.; Schemer-Kohrn, A. L.; Pitman, S. G.

2012-08-01

424

Preparation of nanosized barium zirconate powder by thermal decomposition of urea in an aqueous solution containing barium and zirconium, and by calcination of the precipitate  

Microsoft Academic Search

The synthesis of barium zirconate was initiated by urea induced homogeneous precipitation followed by a low temperature thermal treatment. The kinetic of the reaction and the optimum urea\\/cation ratio have been determined by means of X-ray diffraction and Inductive Coupled Plasma analyses. It has been demonstrated that an amorphous zirconium hydrated oxide starts to precipitate followed by the precipitation of

F. Boschini; B. Robertz; A. Rulmont; R. Cloots

2003-01-01

425

Mechanical Insufflation-Exsufflation Device Prescription for Outpatients With Tetraplegia  

PubMed Central

Background: Mechanical insufflation-exsufflation (MIE) is an option for secretion mobilization in outpatients with spinal cord injury (SCI) who lack an effective cough and are at high risk for developing pneumonia. Objective: To describe characteristics of persons with SCI who received MIE devices for outpatient use and compare respiratory hospitalizations before and after MIE prescription. Design: Retrospective cohort study of all persons who were prescribed MIE devices for outpatient use during 2000 to 2006 by a Veterans Affairs SCI service. Results: We identified 40 patients with tetraplegia (4.5% of population followed by the SCI service) who were prescribed MIE devices. Of these, 30 (75%) had neurologic levels of C5 or rostral, and 33 (83%) had motor-complete injuries. For chronically injured patients who were prescribed MIE for home use, there was a nonsignificant reduction in respiratory hospitalization rates by 34% (0.314/y before MIE vs 0.208/y after MIE; P ?=? 0.21). A posthoc subgroup analysis showed a significant decline in respiratory hospitalizations for patients with significant tobacco smoking histories. Conclusions: Mechanical insufflation-exsufflation was typically prescribed for people with motor-complete tetraplegia. Outpatient MIE usage may reduce respiratory hospitalizations in smokers with SCI. Further research of this alternative, noninvasive method is warranted in the outpatient SCI population.

Crew, James D; Svircev, Jelena N; Burns, Stephen P

2010-01-01

426

'See and treat' outpatient hysteroscopy with novel fibreoptic 'Alphascope'.  

PubMed

This paper describes an experience with the Alphascope, a fibreoptic hysteroscopy system (Gynecare, Ethicon Women's Health and Urology). This prospective observational study was carried out at a tertiary hospital in Naples, Italy. The study population comprised patients undergoing outpatient hysteroscopy with the semi-rigid Versascope Hysteroscopy System using the Alphascope. 7-Fr gauge mechanical instruments and 5-Fr bipolar electrodes (Versapoint, Gynecare, Ethicon Inc., Somerville, NJ) were used for the operative procedures. Outpatient hysteroscopy was successful in 97% of cases. These were diagnostic in 41%, while operative hysteroscopy was performed in 59% of cases. The endoscopic view was subjectively defined by the operator as good/excellent in 95% of procedures. A total of 98% of patients expressed moderate/high degree of satisfaction and only 2% were dissatisfied. The system is successful in the outpatient setting in 95% of attempts. PMID:22369409

Di Spiezio Sardo, A; Zizolfi, B; Lodhi, W; Bifulco, G; Fernandez, L; Spinelli, M; Nappi, C

2012-04-01

427

[Comparing the economy of outpatient versus inpatient rehabilitation].  

PubMed

This article outlines the findings of a project comparing the economic effects of outpatient and inpatient rehabilitation in Mecklenburg-Vorpommern. The study statistically covers the total population of applicants for orthopaedic-traumatologic rehabilitation who are suitable for outpatient rehabilitation. As a randomised and controlled study, it compares outcome parameters of the two variants of rehabilitation. Because the results are approximately equal, analysing the differences between amounts and periods of payments and costs for the pension insurance agency do not result in disadvantages for the patients. The results obtained from the investigation confirm that, in suitable patients, outpatient rehabilitation can achieve approximately the same outcomes as inpatient rehabilitation--but at distinctly lower cost. PMID:12698385

Klingelhfer, H E; Ltzsch, A

2003-03-01

428

Assessing Old Order Amish outpatients with the MCMI-III.  

PubMed

In this study, we examined Millon Clinical Multiaxial Inventory-III (MCMI-III; Millon, 2009) characteristics in an Old Order Amish outpatient sample (n = 166), with a comparison group of Old Order Amish who were not receiving mental health treatment at the time of testing (n = 80). We also graphically compared the 2 Amish groups to a non-Amish psychiatric sample in the literature. Consistent with our hypotheses, the Old Order Amish outpatients scored significantly higher than the Old Order Amish comparison group on the majority of MCMI-III scales, with mostly medium effect sizes, suggesting that the MCMI-III is a useful personality instrument in discriminating between Old Order Amish clinical and nonclinical groups. In addition, the Amish outpatients scored similar to a non-Amish psychiatric sample in the literature on most personality scales. Future MCMI-III studies with the Amish are needed to replicate and generalize our findings. PMID:21516588

Knabb, Joshua J; Vogt, Ronald G

2011-05-01

429

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

NASA Astrophysics Data System (ADS)

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.

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

430

Evaluation of the 21-day outpatient heroin detoxification.  

PubMed

There is a paucity of studies in the literature documenting failure rates of outpatient detoxification from heroin. This study reports on the results of the 21-day ambulatory treatment program at the Miami Veterans Administration Hospital. Heroin users with less than a 2-year history of opiate use must complete the detoxification process within 21 days according to federal regulations. The results of this study indicate 100% "unsuccessful drug rehabilitation" utilizing the 21-day outpatient detoxification treatment modality, a finding similar to studies conducted to evaluate results of inpatient methadone treatment programs. PMID:591146

del Campo, E J; John, D S; Kauffman, C C

1977-10-01

431

Swedish child and adolescent psychiatric out-patients  

Microsoft Academic Search

. Publications of Swedish child-and adolescent psychiatric out-patients have been scarce. This study is aimed to give a picture\\u000a of conditions in a child and adolescent psychiatric out-patient setting by reporting five-year data from a five-year cohort\\u000a of first-time visits. All first-visits, 018 years of age, where screened retrospectively for background factors, symptoms,\\u000a diagnoses and types of treatment. Six hundred

S. Kopp; C. Gillberg

2003-01-01

432

Outpatient treatment of mentally disordered offenders in Austria.  

PubMed

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

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

1996-01-01

433

Outpatient prescribing errors and the impact of computerized prescribing  

Microsoft Academic Search

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

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

434

Spontaneous Oxidation of Barium Tin(II) Chloride Fluorides  

NASA Astrophysics Data System (ADS)

Covalently bonded BaSnF4, BaSn2F6 and new barium tin(II) chloride fluorides BaSn2Cl2F4, BaSnClF3.0.8H2O, and non-stoichiometric Ba1-xSnxCl1+yF1-y were prepared and their stability upon long time storage in air was studied, with respect to tin(II) oxidation to tin(IV). The materials containing covalently bonded tin(II), i.e., all the stoichiometric phases, were found to passivate well due to particle coverage by a thin layer of SnO2 and/or kinetic stabilization of hybridized tin(II), and they show a very minimal increase of tin(IV) signal with increasing storage time. At high temperature, passivation breaks down, then self restores. In contrast, the Ba1-xSnxCl1+yF1-y solid solution is not as well passivated. The rate of increase of tin(IV) Mssbauer signal is significantly higher for the precipitated solid solution, and was found to be inversely related to the amount of tin(IV) already present in the young sample. For the solid solution prepared in dry conditions, the ratio of tin oxidation was found to be higher at positive y values (Cl:F>1) and to decrease with increasing x (tin rich solid solution). In the solid solution, the bond type and strength vary widely with x and y, and so does the rate of oxidation. ``Unprotected'' Sn2+, weakly bound to the lattice, oxidizes much faster than covalently bonded tin(II).

Dns, Georges; Muntasar, Abdualhafed

435

Synthesis of yttrium barium cuprate by coprecipitation of oxalates  

SciTech Connect

A solid-state reaction between Y{sub 2}O{sub 3}, CuO, and BaCO{sub 3} is the most-used process for producing YBa{sub 2}Cu{sub 3}O{sub 7-x} (1-2-3) high-{Tc} materials. As a rule, formation of the 1-2-3 phase is carried out at a temperature no higher than 975{degrees}C in order to avoid incongruent melting of the compound. This temperature is well below the dissociation temperature of BaCO{sub 3} (1400-1450{degrees}C); therefore, multiple sintering-grinding cycles are necessary to produce single-phase samples. As a result, the labor required for the process increases sharply, and the product is contaminated with different elements. The low rate of reaction of BaCO{sub 3} with CuO and Y{sub 2}O{sub 3} is a reason for the prolonged formation of 1-2-3. The authors demonstrated advantages of using Y, Ba and Cu oxalates as starting components for producing high-T{sub c} materials over using Y and Cu oxides and barium carbonate. Admixing of individual oxalates that were found by chemical analysis to be deficient in the coprecipitated mixture simplifies the preparation of the high-T{sub c} materials. The proposed process can be applied both to manufacture of high-T{sub c} materials and regeneration of waste products formed in the process. A single stage synthesis with optimal reaction conditions was found that significantly reduced the impurity content of YBa{sub 2}Cu{sub 3}O{sub 7-x}.

Spitsyna, N.P.; Fotiev, A.A. [Institute of Solid-State Chemistry, Ekaterinburg (Russian Federation); Spitsyn, P.K.; Raikov, Yu.A. [POZ REDMET Joint-Stock Co., Pyshma (Russian Federation)

1994-08-01

436

FIRST DIRECT EVIDENCE THAT BARIUM DWARFS HAVE WHITE DWARF COMPANIONS  

SciTech Connect

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.

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

437

Two Barium Stars in the Open Cluster NGC5822  

NASA Astrophysics Data System (ADS)

Open clusters are very useful examples to explain the constraint of the nucleosynthesis process with the luminosities of stars because the distances of the clusters are better known than those of field stars. We carried out a detailed spectroscopic analysis to derive the chemical composition of two red giants in the young open cluster NGC 5822, NGC 5822-2, and NGC 5822-201. We obtained abundances of C, N, O, Na, Mg, Al, Ca, Si, Ti, Ni, Cr, Y, Zr, La, Ce, and Nd. The atmospheric parameters of the studied stars and their chemical abundances were determined using high-resolution optical spectroscopy. We employed the local thermodynamic equilibrium model atmospheres of Kurucz and the spectral analysis code MOOG. The abundances of the light elements were derived using the spectral synthesis technique. We found that NGC 5822-2 and -201 have, respectively, a mean overabundance of the elements created by the s-process, "s," with the notation [s/Fe] of 0.77 0.12 and 0.83 0.05. These values are higher than those for field giants of similar metallicity. We also found that NGC 5822-2 and -201 have, respectively, luminosities of 140 L ? and 76 L ?, which are much lower than the luminosity of an asymptotic giant branch star. We conclude that NGC 5822-2 and NGC 5822-201 are two new barium stars first identified in the open cluster NGC 5822. The mass transfer hypothesis is the best scenario to explain the observed overabundances. Based on observations made with the 2.2m telescope at the European Southern Observatory (La Silla, Chile).

Katime Santrich, O. J.; Pereira, C. B.; de Castro, D. B.

2013-08-01

438

Kinetic analysis of barium currents in chick cochlear hair cells.  

PubMed Central

Inward barium current (IBa) through voltage-gated calcium channels was recorded from chick cochlear hair cells using the whole-cell clamp technique. IBa was sensitive to dihydropyridines and insensitive to the peptide toxins omega-agatoxin IVa, omega-conotoxin GVIa, and omega-conotoxin MVIIC. Changing the holding potential over a -40 to -80 mV range had no effect on the time course or magnitude of IBa nor did it reveal any inactivating inward currents. The activation of IBa was modeled with Hodgkin-Huxley m2 kinetics. The time constant of activation, tau m, was 550 microseconds at -30 mV and gradually decreased to 100 microseconds at +50 mV. A Boltzmann fit to the activation curve, m infinity, yielded a half activation voltage of -15 mV and a steepness factor of 7.8 mV. Opening and closing rate constants, alpha m and beta m, were calculated from tau m and m infinity, then fit with modified exponential functions. The H-H model derived by evaluating the exponential functions for alpha m and beta m not only provided an excellent fit to the time course of IBa activation, but was predictive of the time course and magnitude of the IBa tail current. No differences in kinetics or voltage dependence of activation of IBa were found between tall and short hair cells. We conclude that both tall and short hair cells of the chick cochlea predominantly, if not exclusively, express noninactivating L-type calcium channels. These channels are therefore responsible for processes requiring voltage-dependent calcium entry through the basolateral cell membrane, such as transmitter release and activation of Ca(2+)-dependent K+ channels.

Zidanic, M; Fuchs, P A

1995-01-01

439

Behavior of radium and barium in a system including uranium mine waste waters and adjacent surface waters  

Microsoft Academic Search

The effect of a large-scale purification of uranium mine wastewaters, using ion exchange resins or precipitation of barium sulfate, on the concentration of dissolved and suspended forms of radium and barium was studied. Results indicate a variable efficiency of purification, mainly due to uneven operation of ion exchange equipment. The main factors regulating radionuclide forms and concentrations in adjacent surface

Ferdinand. Sebesta; Petr. Benes; Josef. Sedlacek; Jan. John; Roman. Sandrik

1981-01-01

440

Barium toxicity after exposure to contaminated contrast solution--Goias State, Brazil, 2003.  

PubMed

Barium-containing contrast solutions are commonly used in radiologic studies. On May 22, 2003, three patients at radiology clinics in Goias State, Brazil, were hospitalized after ingesting such solutions; two persons died within 24 hours of hospitalization. Exposure occurred during radiologic examination of the upper or lower gastrointestinal tract. An investigation was conducted by municipal and state public health authorities with assistance from the Ministry of Health's National Agency for Sanitary Surveillance (ANVISA) and Brazil's Field Epidemiology Training Program (FETP), known locally as EPISUS. This report summarizes the results of that investigation, which found that 44 persons had suspected barium toxicity, nine of whom died. Eight of the nine deaths were linked to a single lot of brand A contrast solution. A national recall was announced on May 23, and the manufacturing facility was inspected and closed. Clinicians should be alert for signs of barium toxicity in patients in the hours after administration of contrast solutions during radiologic studies. PMID:14586298

2003-10-31

441

Effect of gamma ray irradiation on the ferroelectric and piezoelectric properties of barium stannate titanate ceramics  

NASA Astrophysics Data System (ADS)

Tin doped barium titanate ceramics has been obtained by solid state reaction method followed by high energy ball milling. The effect of heavy dose gamma ray irradiation on the ferroelectric and piezoelectric properties of the synthesized barium stannate titanate ceramics has been observed. It has been found that on irradiation the ferroelectric property decreases with decreasing values of Pr and Ec. The piezoelectric properties including d33, electrostrictive strain and electromechanical coupling coefficient (Kp) also decrease following the same trend of Pr and Ec. Grain size decreases and grain patterns become irregular after irradiation as observed from SEM micrographs. The Thermoluminescence (TL) property of the barium stannate titanate ceramics has also been investigated and reported.

Nath, A. K.; Medhi, Nirmali

2013-10-01

442

Characterization, sintering and dielectric properties of nanocrystalline barium titanate synthesized through a modified combustion process  

SciTech Connect

Nanocrystalline barium titanate has been synthesized through a modified combustion process in a single step for the first time. The as-prepared barium titanate powder is cubic perovskite with lattice constant a = 4.018 A. The phase purity of the nanopowder was examined using thermo gravimetric analysis, differential thermal analysis and Fourier transform infrared spectroscopy. Transmission electron microscopic investigations have shown that the particle size of the as-prepared powder is in the range 20-40 nm. The agglomerate size distribution of the as-prepared powder was studied using atomic force microscopy. The nanoparticles of barium titanate were sintered to 97% of the theoretical density at a temperature of 1350 deg. C for 3 h. The microstructure of the sintered surface was examined using scanning electron microscopy. The dielectric constant and loss factor of the sintered pellets at 1 MHz measured at room temperature were 1223 and 3.5 x 10{sup -3} respectively.

George, C.N. [Department of Physics, Bishop Moore College, Mavelikara, Kerala (India); Thomas, J.K. [Department of Physics, Mar Ivanios College, Thiruvananthapuram, Kerala (India)], E-mail: jkthomasemrl@gmail.com; Kumar, H.P.; Suresh, M.K. [Department of Physics, Mar Ivanios College, Thiruvananthapuram, Kerala (India); Kumar, V.R.; Wariar, P.R.S. [Department of Physics, University College, Thiruvananthapuram, Kerala (India); Jose, R. [Nanoscience and Nanotechnology Initiative, National University of Singapore (Singapore); Koshy, J. [Department of Physics, Bishop Moore College, Mavelikara, Kerala (India)

2009-04-15

443

Electric fields and plasma waves resulting from a barium injection experiment  

NASA Astrophysics Data System (ADS)

The results of a barium plasma injection experiment using seven shaped charges are presented. The technical objectives were to investigate the wave-particle plasma interactions resulting from the injection of a dense barium plasma perpendicular to the geomagnetic field; to study the electron heating and subsequent ambient excitations resulting from such an injection; to examine plasma striation mechanisms concurrently in collisional and collisionless environments; and to evaluate the engineering design and performance of the sevenfold larger shaped-charge payload. Ion-cyclotron waves and lower-hybrid resonance emissions were positively identified in the data. Alfven waves and an oblique shock wave in the ambient plasma, and ion-acoustic waves in the barium plasma were tentatively identified. Highly structured emissions occurred between 500 Hz and 2.5 kHz for several seconds beginning 17 seconds after the explosion. The wave mode responsible for these structured emissions has not yet been identified.

Koons, H. C.; Pongratz, M. B.

1981-03-01

444

Determination of barium in bottled drinking water by graphite furnace atomic absorption spectrometry  

SciTech Connect

In relation to the wide environmental spread of barium and to its cardiovascular effects, barium levels were determined by graphite furnace atomic absorption spectrometry in 60 different brands of bottled water marketed in Italy. Matrix interferences were investigated in order to evaluate the use of an analytical calibration function rather than the much more time consuming addition technique. The barium content ranged from limit of detection C/sub L/ (7.0 ..mu..g/1) up to 660 ..mu..g/1, the median value being 80 ..mu..g/l, while the recovery tests varied between 90 and 110% and the precision of the method (s/sub yx/) was 2.5%.

Fagioli, F.; Locatelli, C.; Lanciotti, E.; Vallone, G.; Mazzotta, D.; Mugelli, A.

1988-11-01

445

Characterization of Internal Capacitors Based on Glass-Added Barium Titanate  

NASA Astrophysics Data System (ADS)

Barium-calcium-aluminum-borosilicate glass is added as a sintering promoter to reduce the sintering temperature of barium titanate. The dielectric properties of the glass-added barium titanate-based internal capacitors are investigated. The dielectric constants of the composites were found to increase with sintering temperature. A capacitance of about 2.3 nF/cm2 with the dissipation factor of 2.9% is obtained for a 20 wt% glass-added BaTiO3 internal capacitor after being cofired with low dielectric constant ceramic substrate at 950C. The percent change of capacitance is confined within 10% and the dissipation factor is stable in the measured temperature range.

Chen, Lih-Shan; Fu, Shen-Li; Lin, Wen-Kuan; Huang, Kwan-Dar

2001-07-01

446

Stability of barium oxides in REBa2Cu3Oy superconductors  

NASA Astrophysics Data System (ADS)

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 90 K even for 15 vol% addition and an improved Jc under a magnetic field. XRD and SEM results indicated that BSO was very stable in the Er123 matrix. The dependence of Tc on BSO addition showed similar trends for the sintered samples and Er123 thin films. It was found that the most stable barium oxide in Er123 superconductors was BaSnO3.

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

2008-09-01

447

Coprecipitation of radium with barium sulfate from calcium-containing solutions  

SciTech Connect

Precipitation of radium with barium sulfate from solutions obtained on treatment of thorium-containing industrial wastes has been studied by stepwise regressive analysis. The mathematical model of the process selected on an Elektronika-DZ-28 computer made it possible to prove that, unlike calcium-free solutions, coprecipitation of radium with barium sulfate from solutions highly concentrated in calcium depends on the ratio of the amount of sulfuric acid to the sum of the amounts of barium, calcium, and magnesium, the influence of this factor on the degree of radium precipitation being negative: the radioactivity of the filtrate intensifies. This deviation from the mechanisms of radium coprecipitation in pure solutions has been explained by the phenomenon of blocking of the carrier surface by the calcium sulfate crystals.

Belkin, A.V.; Kudryavskii, Yu.P.; Anferov, S.A.

1988-11-01

448

Radar observations of ion cyclotron waves associated with two barium shaped-charge releases  

NASA Astrophysics Data System (ADS)

Plasma waves associated with two shaped-charge barium releases from Wallops Island (Virginia) on May 13, 1986 were investigated using a 50 MHz Doppler radar interferometer and a 138-MHz Doppler radar operated from Kennedy Space Center. During the first barium release, measurements showed the existence of short-lived coherent 3-m and 1-m waves centered near 30 Hz. The coherent 30-Hz radar echoes were very similar to some naturally occurring auroral radar echoes that are believed to be generated by resistive current-driven electrostatic ion cyclotron (EIC) waves. The 30-Hz waves seen by the two radars far above the release are interpreted as strong EIC waves generated by intense field-aligned currents associated with the barium stream acting like an MHD generator coupled to the ionosphere.

Providakes, Jason; Swartz, Wesley E.; Kelley, Michael C.; Djuth, Frank T.; Noble, Steve

1990-12-01

449

Investigations of Nanocrystalline Ferroelectric Barium Titanate Synthesized by High-Energy Ball Milling  

NASA Astrophysics Data System (ADS)

Nanocrystalline materials are of interest due to the possibility of improving the macroscopic properties of the materials. There has been renewed interest in nanoscale barium titanate because its electrical properties are strongly dependent upon the grain size and crystalline structure. Nanocrystalline barium titanate was prepared by mechanical activation (high-energy ball milling) method. The samples were milled for different milling time of 5 hours, 10 hours, 20 hours and 30 hours. The microstructure was investigated by X-ray diffraction (XRD), scanning electron microscopy (SEM), electron diffraction (ED) and transmission electron microscopy (TEM). Barium titanate nanocrystals were obtained with narrow size distribution and the average particle size is in the range of 25-50 nm. Grain size is observed to decrease with increasing milling time. Dielectric properties of the synthesized specimens were investigated. It is observed that with increasing milling time dielectric constant increases.

Devi, Sheela; Jha, A. K.

2011-11-01

450

Individual-specific transgenerational marking of fish populations based on a barium dual-isotope procedure.  

PubMed

The present study focuses on the development and evaluation of an individual-specific transgenerational marking procedure using two enriched barium isotopes, (135)Ba and (137)Ba, mixed at a given and selectable molar ratio. The method is based on the deconvolution of the isotope patterns found in the sample into four molar contribution factors: natural xenon (Xe nat), natural barium (Ba nat), Ba135, and Ba137. The ratio of molar contributions between Ba137 and Ba135 is constant and independent of the contribution of natural barium in the sample. This procedure was tested in brown trout ( Salmo trutta ) kept in captivity. Trout were injected with three different Ba137/Ba135 isotopic signatures ca. 7 months and 7 days before spawning to compare the efficiency of the marking procedure at long and short term, respectively. The barium isotopic profiles were measured in the offspring by means of inductively coupled plasma mass spectrometry. Each of the three different isotopic signatures was unequivocally identified in the offspring in both whole eggs and larvae. For 9 month old offspring, the characteristic barium isotope signatures could also be detected in the otoliths even in the presence of a high and variable amount of barium of natural isotope abundance. In conclusion, it can be stated that the proposed dual-isotope marking is inheritable and can be detected after both long-term and short-term marking. Furthermore, the dual-isotope marking can be made individual-specific, so that it allows identification of offspring from a single individual or a group of individuals within a given fish group. PMID:22103693

Huelga-Suarez, Gonzalo; Moldovan, Mariella; Garcia-Valiente, America; Garcia-Vazquez, Eva; Alonso, J Ignacio Garcia

2011-12-14

451

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

Microsoft Academic Search

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

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

452

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

PubMed Central

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

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

1992-01-01

453

Dysfunctional Attitudes and Suicidal Ideation in Psychiatric Outpatients.  

ERIC Educational Resources Information Center

|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

Beck, Aaron T.; And Others

1993-01-01

454

Resident Physicians' Perspectives on Effective Outpatient Teaching: A Qualitative Study  

ERIC Educational Resources Information Center

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

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

2010-01-01

455

Depression in elderly outpatients with disabling chronic obstructive pulmonary disease  

Microsoft Academic Search

Introduction: depression is common in both young adults and elderly people with chronic obstructive pulmonary disease (COPD). Methods: we compared the prevalence of depressive symptomatology in elderly outpatients with stable disabling COPD with that in healthy controls and age-matched patients with other disabilities, and also assessed the relation between degree of disability, quality of life and depressive symptoms. The subjects

ABEBW M. YOHANNES; JAMAL ROOMI; ROBERT C. BALDWIN; MARTIN J. CONNOLLY

1998-01-01

456

Referrals for anger and aggression in forensic psychology outpatient services  

Microsoft Academic Search

The purpose of this study was to investigate a clinical observation in referrals to a forensic clinical psychology outpatient service: that anger was related to obsessional-compulsive behaviours, possibly as a substitute means of controlling situations. A secondary hypothesis was that control of situations by obsessional-compulsive behaviours would result in greater levels of anxiety and depression, since this is not this

Mary McMurran; Vincent Egan; Cathryn Richardson; Shahla Ahmadi; Gillian Cooper

2000-01-01

457

Alprazolam Compared to Clobazam and Placebo in Anxious Outpatients  

Microsoft Academic Search

In this double-blind study we compared alprazolam, clobazam, and placebo for the treatment of outpatients suffering from generalized anxiety disorder. At the end of the treatment, the three groups were significantly improved without showing differences among them. However, both active-drug groups were much improved at the end of week 1 in contrast to the placebo group. We were unable to

Aitor Castillo; Cesar Sotillo; Javier Mariategui

1987-01-01

458

Effectiveness of child psychoanalytic psychotherapy in a clinical outpatient setting  

Microsoft Academic Search

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 611 years old, and the Child Behaviour Check List (CBCL) was completed by the parents. All testing was completed before the

Elisabeth Kuhn Deakin; Maria Lucia Tiellet Nunes

2009-01-01

459

Evaluating Outpatient Pediatric Psychology Services in a Primary Care Setting  

Microsoft Academic Search

Objective: To provide descriptive and outcome information of an outpatient pediatric psychology clinic based in a medical center in a major metropolitan area. Methods: We coded the characteristics and outcomes of 100 patients prospectively on a number of dimen- sions. Surveys and interviews were used to gather follow-up information. Results: The majority of patients were Caucasian boys (n 56 out

Amanda B. Sobel; Michael C. Roberts; Arista D. Rayfield; Martha U. Barnard; Michael A. Rapoff

2001-01-01

460

Two methods of anesthesia for rhinoplasty in outpatient setting  

Microsoft Academic Search

This retrospective study was designed with the aim to evaluate suitability of two methods of anesthesia: local anesthesia combined with sedation (midazolam + pethidine) or dissociative (midazolam + ketamine hydrochloride) anesthesia for performing rhinoplasties in an outpatient setting. During 19851994, we performed 516 rhinoplasties in 464 patients. Sedation and local anesthesia was used in 263, and dissociative and local anesthesia

Igor Niechajev; P.-O. Haraldsson

1996-01-01

461

An Experiment in Outpatient Subspecialty Medical Student Education.  

ERIC Educational Resources Information Center

A one-month subspecialty outpatient clinic program for third-year medical students is described. The clerkship featured high volume (60-70 patients) clinical practice, library research (12 short papers), and close mentor supervision. Pre- and posttest scores did not distinguish participants from others, but participants later reported improved

MacKinney, Archie A., Jr.

1993-01-01

462

Swallowing in neurological outpatients: Use of a timed test  

Microsoft Academic Search

Swallowing was studied prospectively in a consecutive group of 90 neurology outpatients under 70 years of age. No patient had been referred primarily because of dysphagia. Patients were classified into four groups: those with (1) neurological or (2) non-neurological diagnoses possibly relevant to disordered swallowing, (3) functional disorders, and (4) definite diagnoses not likely to be relevant. They were defined

Kalyanee M. Nathadwarawala; Anna McGroary; Charles M. Wiles

1994-01-01

463

Effectiveness of Child Psychoanalytic Psychotherapy in a Clinical Outpatient Setting  

ERIC Educational Resources Information Center

|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

Deakin, Elisabeth Kuhn; Tiellet Nunes, Maria Lucia

2009-01-01

464

Medicare: Payments for Covered Outpatient Drugs Exceed Providers' Cost.  

National Technical Information Service (NTIS)

While Medicare does not have a comprehensive outpatient drug benefit, certain drugs and biologicals are covered under part B of the program. In general, drugs are covered if they cannot be self-administered and are related to a physicians services, such a...

2001-01-01

465

Outpatients appointment scheduling with multi-doctor sharing resources  

Microsoft Academic Search

In an outpatient department of general hospitals, several doctors practice simultaneously. While individual doctors have their own patient panel and work independently, they share common resources such as space, personnel and equipments. In such settings, designing an optimal scheme to manage patient flow, e.g. appointment scheduling, requires to consider patient flows for all doctors instead of focusing on a single

Nara Yeon; Taesik Lee; Hoon Jang

2010-01-01

466

Outpatient appointment scheduling in a multi facility system  

Microsoft Academic Search

This study evaluates appointment systems used in hospitals by incorporating appointment rules and patient characteris- tics. Using an experiment unit at an internal medicine de- partment of a large outpatient ward in Nagoya university hospital, a number of prevailing assumptions were relaxed, and twenty-five appointment systems were developed com- bining five appointment rules with five patient sequences. These appointment systems

Athula Wijewickrama; Soemon Takakuwa

2008-01-01

467

Requirements of time management tools for outpatient physiotherapy practice  

Microsoft Academic Search

The effects of electronic appointment booking systems on the time management activities of health professionals have received little attention to date. We report on time management practices in three outpatient physiotherapy departments with different paper and electronic systems. The study has identified a set of time management activities and associated social behaviours common to physiotherapy departments. The convenience, flexibility and

Leanne Fleet; Ann E. Blandford

2005-01-01

468

Multi-criteria decision making in outpatient scheduling  

Microsoft Academic Search

Hospital ambulatory patients are seen in outpatient departments (OPDs) located in the hospital. 83.3 million visits were made to these departments in 2002. Many sources of patient waiting time exist including: poor coordination of information, inefficient scheduling, inaccurate time estimation and others. Well-designed and executed patient scheduling has the potential to remedy some of these problems. To properly schedule patients,

Jana Iezzi

2006-01-01

469

Socioeconomic determinants of outpatient antibiotic consumption in Europe  

Microsoft Academic Search

Outpatient antibiotic consumption widely vary across Europe. The investigation of what lies behind such variation may help to identify sources of inefficiency. Comparable data on antibiotic use in 21 European countries between 1997 and 2005 are provided by the European Surveillance of Antimicrobial Consumption (ESAC). Data on determinants are available for 17 countries between 2000 and 2005. We estimate an

Giuliano Masiero; Massimo Filippini; Matus Ferech; Herman Goossens

2009-01-01

470

The Effect of Outpatient Visit Volume on Inpatient Teaching Services.  

ERIC Educational Resources Information Center

Administrative changes causing a planned decrease in outpatient services offered at a teaching hospital resulted in adverse effects on teaching programs and hospital finances. These results emphasize the important of vertical integration of services to the survival of academic health centers. (Author/MSE)

Deyo, Richard A.

1984-01-01

471

Self-Esteem and Suicide Ideation in Psychiatric Outpatients  

ERIC Educational Resources Information Center

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

Bhar, Sunil; Ghahramanlou-Holloway, Marjan; Brown, Gregory; Beck, Aaron T.

2008-01-01

472

[Measurement of participation in outpatient neurorehabilitation - a pilot study].  

PubMed

Objective: To date there is a lack of tools to measure participation and the already existing measures are not properly used as yet. In 2005 the IMET (Index zur Messung von Einschrnkungen der Teilhabe) was developed and is able to measure the ICF associated construct participation as a generic instrument in chronic diseases. IMET and numerous instruments were applied in our own study and results were compared with results of an unpublished study. In addition, to test IMET for its use in neurorehabilitation the effects of outpatient neurorehabilitation were investigated and compared with results obtained in an inpatient setting.Method: In a multicentric observational study, consecutively treated patients of 6 outpatient neurorehabilitation centres were asked to fill in a questionnaire at three time points (admission and discharge in the course of rehabilitation and at 4 months follow-up). Additionally, clinical experts were asked to rate the patients' status at admission and discharge. The data were compared with results of a sample of inpatients of an unpublished study.Results: The IMET seems to be theto date best instrument to measure participation in a global, ICF-defined and economic way. Especially participation, general health status and capacity in leisure time and daily routine show the biggest improvements. In comparison, the outpatients show improvements in their participation status. Participation-oriented outpatient neurorehabilitation seems to have a considerable impact on participation status in neurological patients through the course of rehabilitation. PMID:24081517

Pppl, D; Deck, R; Fries, W; Reuther, P

2013-09-30

473

Toward Instituting a Chaperone Policy in Outpatient Pediatric Clinics  

ERIC Educational Resources Information Center

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

Feldman, Kenneth W.; Jenkins, Carol; Laney, Tyler; Seidel, Kristy

2009-01-01

474

Health effects of air pollution measured by outpatient visits  

Microsoft Academic Search

An association between air pollution and various diseases has been demonstrated over the last three decades by examining vital statistics, epidemiologic surveys, and hospital data. This study examines the association between air pollutants and diagnoses made at outpatient visits to a family practice center during an acute episode of air pollution. A strong positive correlation was found between average weekly

1983-01-01

475

The Effect of Outpatient Visit Volume on Inpatient Teaching Services.  

ERIC Educational Resources Information Center

|Administrative changes causing a planned decrease in outpatient services offered at a teaching hospital resulted in adverse effects on teaching programs and hospital finances. These results emphasize the important of vertical integration of services to the survival of academic health centers. (Author/MSE)|

Deyo, Richard A.

1984-01-01

476

National Hospital Ambulatory Medical Care Survey: 2006 Outpatient Department Summary  

Microsoft Academic Search

ObjectivesThis report describes ambulatory care visits to hospital outpatient departments (OPDs) in the United States. Statistics are presented on selected hospital, patient, and visit characteristics. Selected trends in OPD utilization from 1996 through 2006, as well as items new to the 2006 survey, are also presented. MethodsThe data presented in this report were collected in the 2006 National Hospital Ambulatory

Esther Hing; Margaret J. Hall; Jianmin Xu

2006-01-01

477

Outpatient protocol for biofeedback therapy of pelvic floor outlet obstruction  

Microsoft Academic Search

Pelvic floor outlet obstruction is a rare cause of severe constipation. Anal myectomy, subtotal colectomy, and medical therapy have limited success. The purpose of this study was to develop a short outpatient treatment using biofeedback techniques. Nine patients with severe constipation and straining resulting from pelvic floor outlet obstruction underwent complete investigation of the pelvic floor musculature and anal sphincter

James W. Fleshman; Zeev Dreznik; Kathleen Meyer; Robert D. Fry; Robert Carney; Ira J. Kodner

1992-01-01

478

Infection Control Program To Reduce MRSA in ENT Outpatients  

Microsoft Academic Search

ISSUE: It has been reported that the methicillin-resistant rate of S. aureus and the MRSA isolation rate in ENT outpatient departments are higher than in any other medical services, which means that there is a high risk of transmission of MRSA among patients. For this reason, we have carried an infection control program in order to reduce the MRSA isolation

J. H. Yoon; D. E. Yong; S. Y. Jang

2004-01-01

479

Behaviour Profile of Hungarian Adolescent Outpatients with a Dual Diagnosis  

ERIC Educational Resources Information Center

|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

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

2012-01-01

480

Perceived Mental Illness Stigma among Youth in Psychiatric Outpatient Treatment  

ERIC Educational Resources Information Center

|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

Elkington, Katherine S.; Hackler, Dusty; McKinnon, Karen; Borges, Cristiane; Wright, Eric R.; Wainberg, Milton L.

2012-01-01

481

Self-Esteem and Suicide Ideation in Psychiatric Outpatients  

ERIC Educational Resources Information Center

|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

Bhar, Sunil; Ghahramanlou-Holloway, Marjan; Brown, Gregory; Beck, Aaron T.

2008-01-01

482

Survey of satisfaction with care in a rheumatology outpatient clinic  

Microsoft Academic Search

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).

J Hill; H A Bird; R Hopkins; C Lawton; V Wright

1992-01-01

483

Toward Instituting a Chaperone Policy in Outpatient Pediatric Clinics  

ERIC Educational Resources Information Center

|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

Feldman, Kenneth W.; Jenkins, Carol; Laney, Tyler; Seidel, Kristy

2009-01-01

484

Differentiating Symptoms of Complicated Grief and Depression Among Psychiatric Outpatients  

Microsoft Academic Search

Objective: This study examined whether dimensions of complicated grief (CG) could be distinguished from dimensions of depression and whether these dimensions were differentially affected by group psycho- therapy for CG. Method: A total of 398 psychiatric outpatients who had experienced one or more significant death losses provided ratings on standard measures of grief and depression. Factor analysis of the 56

John S Ogrodniczuk; William E Piper; Anthony S Joyce; Rene Weideman; Mary McCallum; Hassan F Azim; John S Rosie

2003-01-01

485

Outpatient Treatment of Primary Anorexia Nervosa in Adult Males.  

ERIC Educational Resources Information Center

|Describes three cases of adult-onset primary anorexia nervosa in males. For each case, the history and diagnostic patterns are considered, followed by a discussion of the course of outpatient treatment. The therapy was multimodal and included elements of behavioral contingency management, cognitive therapy, and dynamic psychotherapy. (JAC)|

Ziesat, Harold A., Jr.; Ferguson, James M.

1984-01-01

486

[Choice criteria of premedication in outpatient stomatologic department].  

PubMed

We have analyzed factors causing stress during out-patient dental treatment. The psychological characteristic of people with prevalence of sthenical and asthenical features were given and dependence of the effect of the medicine on individual features was shown. PMID:17159839

Novikova, S G; Lobanova, E G; Rabinovich, S A; Novikov, D V; Emel'ianova, T V

2006-01-01

487

Outpatient percutaneous screw fixation of the acute Jones fracture  

Microsoft Academic Search

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

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

1993-01-01

488

Nonattenders and Attrition from a Forensic Psychology Outpatient Service  

Microsoft Academic Search

The authors examined 219 referrals to a forensic psychology outpatient service between 1989 and 1996. Factors including age of client, whether it was first or subsequent referral, number of agencies previously involved, and type of problem were examined to determine their relationship to the outcomes of nonattendance, early dropout, or completion of assessment\\/therapy. Type of problem for which the referral

Rita Dalton; Sarah Major; Maire Sharkey

1998-01-01

489

Screening for Body Dysmorphic Disorder in Dermatological Outpatients  

Microsoft Academic Search

SummaryBackground: Although body dysmorphic disorder (BDD) is frequently found in dermatological settings, it often remains unrecognised. The aims of the current study were to validate the Dysmorphic Concern Questionnaire (DCQ) as a screening instrument; and to estimate the frequency of dysmorphic concerns in a dermatological sample of female outpatients. Patients and Methods: Item characteristics and factor structure of the DCQ

U. Stangier; C. Janich; S. Adam-Schwebe; P. Berger; M. Wolter

2003-01-01

490

Sex Education and Rehabilitation With Schizophrenic Male Outpatients  

Microsoft Academic Search

Research indicates that schizophrenic patients lack intimate relationships and show a high rate of sexual dysfunction. Despite increasing awareness of the rights of handicapped persons to sexual expression, the treatment of schizophrenic patients rarely addresses their sexuality. A sex education program for recent-onset male schizophrenic patients attending an outpatient clinic was developed in response to several incidents involving patients inappropriate

David Lukoff; Debbie Gioia-Hasick; Greer Sullivan; Joshua S. Golden

1986-01-01

491

Social phobia in an outpatient alcohol and drug treatment sample  

Microsoft Academic Search

Objective: To examine characteristics of patients with social phobia (SP) in alcohol and drug treatment settings and to identify features distinguishing this group from patients with and without other psychiatric conditions. Method: A random sample of 105 patients completing an initial assessment at two outpatient alcohol and drug treatment services were assessed and agreed to a 9 month follow-up interview,

Simon J. Adamson; J. Douglas Sellman; Paul J. Robertson

2008-01-01

492

38 CFR 17.165 - Emergency outpatient dental treatment.  

Code of Federal Regulations, 2013 CFR

...established eligibility for outpatient dental care, the treatment will...discomfort, or the remediation of a dental condition which is determined to be endangering life or health. The provision of emergency...persons found ineligible for dental care will not entitle the...

2013-07-01

493

Identifying Outpatients with Entrenched Suicidal Ideation Following Hospitalization  

ERIC Educational Resources Information Center

The purpose of this study was to identify outpatients who experience entrenched suicidal ideation following inpatient psychiatric hospitalization. Our findings suggest that the use of a suicidal ambivalence index score was helpful at discriminating those who reported significantly greater ratings of suicidal ideation across a 1-year period of

O'Connor, Stephen S.; Jobes, David A.; Comtois, Katherine Anne; Atkins, David C.; Janis, Karin; Chessen, Chloe E.; Landes, Sara J.

2012-01-01

494