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1

Adequacy of preparation for barium enema among elderly outpatients.  

PubMed Central

OBJECTIVE: To determine whether outpatients 75 years of age or older have a higher rate of inadequate bowel preparation for barium enema and of complications associated with the preparation and the test than patients aged 55 to 74 years. DESIGN: Cross-sectional survey. SETTING: Radiology department in a teaching hospital. PATIENTS: Patients 55 years or older referred for a barium enema from March to August 1988. OUTCOME MEASURES: All films were reviewed independently by a study radiologist blind to the staff radiologist's report. Patients were interviewed by telephone within several days after the test to assess the occurrence of problems during the preparation or the test. MAIN RESULTS: Of the 213 patients assessed 72 were excluded: 43 refused to participate or could not be contacted, 16 had previously undergone colonic surgery, and 13 were excluded for other reasons. The remaining 141 patients were separated into three age groups: those 55 to 64 years (46 patients), those 65 to 74 (47) and those 75 or older (48). In 104 cases (74%) the bowel had been prepared adequately; there was no significant difference between the three groups with regard to the adequacy of preparation. The incidence of problems reported by the patients did not differ significantly between the groups. CONCLUSIONS: Outpatients aged 75 years or more are no more likely than those aged 55 to 74 to have problems with bowel preparation or the barium enema itself. Age should not be a criterion for exclusion from barium enema. To try to lower the rate of poor bowel preparation clinicians and radiologists should consider counselling patients more carefully about the importance of proper preparation. Also, the current method of preparation could be examined to determine whether simple changes would significantly improve colon cleanliness. PMID:2025821

Grad, R M; Clarfield, A M; Rosenbloom, M; Perrone, M

1991-01-01

2

Solar eclipse sign of intussusception on barium enema.  

PubMed

The colographic appearance of intussusception is variously described as a claw sign, pincer defect, shouldering effect, and coiled-spring pattern. This report adds a new radiographic sign to the list. An end-on view of an intussusception on barium enema shows a ring of contrast resembling a solar eclipse. Familiarity with this bizarre appearance is desirable, lest it may be mistaken for spillage of barium due to a colonic perforation. PMID:11793074

Raveenthiran, V

2002-01-01

3

Patient and occupational dosimetry in double contrast barium enema examinations  

Microsoft Academic Search

A new and relatively simple method is presented to distribute total dose-area product (DAP) over a number of projections that model exposure during double contrast barium enema (DCBE) examinations. In addition, hitherto unavailable entrance and effective doses to the physician performing the DCBE examination have been determined. DAP, fluoroscopy time, number of images as well as some patient data were

G J KEMERINK; A C W BORSTLAP; M J FRANTZEN; F W SCHULTZ; J ZOETELIEF; JMA VAN ENGELSHOVEN

4

Does peppermint oil relieve spasm during barium enema?  

PubMed

The effectiveness of topical peppermint oil added to barium sulphate suspension in relieving colonic muscle spasm during double contrast barium enema examination was assessed in a double blind study. 141 patients were randomized either to a control group (71 patients) examined with standard barium suspension or to the treatment group which received peppermint oil mixed with the barium preparation. No residual spasm was evident in a significant proportion of patients in the treated group (60%) compared with the control group (35%) (p < 0.001). The patients' acceptability of the procedure was good and there were no adverse effects on the overall quality of the examination. In conclusion, the addition of peppermint oil to the barium suspension seems to reduce the incidence of colonic spasm during the examination. The technique is simple, safe, cheap and it may lessen the need for intravenous administration of spasmolytic agents. PMID:7551780

Sparks, M J; O'Sullivan, P; Herrington, A A; Morcos, S K

1995-08-01

5

Internal hemorrhoids: diagnosis with double-contrast barium enema examinations.  

PubMed

The authors retrospectively studied 43 patients suspected of having internal hemorrhoids at double-contrast barium enema examination. At endoscopy, 24 patients (56%) had internal hemorrhoids, four (9%) had other pathologic lesions in the rectum without evidence of hemorrhoids, and 15 (35%) had no reported abnormalities in the rectum. Internal hemorrhoids were found at endoscopy in 10 of 20 patients (50%) with lobulated folds extending 3 cm or less from the anorectal junction and 10 of 13 patients (77%) with multiple submucosal nodules. However, no patients with these characteristic radiographic findings were found to have other pathologic lesions in the rectum that had been mistaken for hemorrhoids at barium enema examination. Conversely, three of four patients with lobulated folds extending more than 3 cm from the anorectal junction and one of six patients with solitary nodules had proctitis or rectal neoplasms. Thus, specific criteria are suggested for the diagnosis of internal hemorrhoids on double-contrast barium enema examinations. Suspected hemorrhoids that do not fulfill these criteria should be evaluated endoscopically to rule out other more serious pathologic lesions in the rectum. PMID:2399313

Levine, M S; Kam, L W; Rubesin, S E; Ekberg, O

1990-10-01

6

Appendicitis in children. Accuracy of the barium enema.  

PubMed

The barium enema (BE) may be useful in the diagnosis of atypical appendicitis in children. We analyzed our experience with 18 children in whom appendicitis was suspected and BE was performed. All of the children underwent surgical exploration. Nonfilling of the appendix with cecal indentation, extravasation of barium from the appendix, or both, were considered positive signs of an inflamed appendix on BE. Using these criteria, 12 of 14 cases of proved appendicitis were true positive and two were equivocal. Four children were proved not to have appendicitis; one of these patients had a true-negative BE, two had equivocal BEs, and there was one false-positive BE (Schönlein-Henoch purpura). Extravasation of barium into the peritoneal cavity was noted in one patient; this was a rare complication. PMID:3687874

Garcia, C; Rosenfield, N S; Markowitz, R I; Seashore, J H; Touloukian, R J; Cicchetti, D V

1987-12-01

7

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

8

Routine barium enema prior to closure of defunctioning ileostomy is not necessary  

PubMed Central

Purpose The use of barium enemas to confirm the anastomotic integrity prior to ileostomy closure is still controversial. The purpose of the study was to determine the utility of routine contrast enema prior to ileostomy closure and its impact on patient management in patients with a low pelvic anastomosis. Methods One hundred forty-five patients had a temporary loop ileostomy constructed to protect a low colorectal or coloanal anastomosis following low anterior resection for rectal cancer. All patients were evaluated by physical examination, proctoscopy, and barium enema prior to ileostomy closure. Results The median time from ileostomy creation to closure was 8 months. Five (3.5%) of the 144 patients were found to have clinically relevant strictures at the colorectal anastomosis on routine barium enema. One patient (0.7%) showed anastomotic leak on their barium enema. Overall, 141 patients (97.9%) had an uncomplicated postoperative course. Postoperative complication occurred in three patients (2.1%). None of them showed abnormal barium enema finding, which suggested that routine contrast enema examination did not predict postoperative complication. Conclusion Routine barium enema evaluation of low pelvic anastomoses before loop ileostomy closure did not provide any additional information for postoperative colorectal anastomotic complication. PMID:22880182

Hong, Sung Yeon; Kim, Do Yun; Suh, Kwang Wook

2012-01-01

9

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

PubMed Central

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

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

2014-01-01

10

Sensitivity of double contrast barium enema and colonoscopy for the detection of colorectal neoplasms  

Microsoft Academic Search

  Background: Double contrast barium enema (DCBE) is the examination carried out most frequently for investigation of patients\\u000a with large bowel symptoms. The aim of this study was to compare the sensitivity of DCBE and colonoscopy for the detection\\u000a of colorectal cancer and neoplastic polyps ?1 cm. Methods: All patients undergoing DCBE (1389) or colonoscopy (1081) as the\\u000a primary investigation for

G. A. Smith; P. J. O'Dwyer

2001-01-01

11

Barium enema  

MedlinePLUS

... be done in a doctor's office or hospital radiology department. It is done after your colon is ... Grainger RG, et al., eds. Grainger & Allison's Diagnostic Radiology: A Textbook of Medical Imaging . 5th ed. Philadelphia, ...

12

CT colonography versus double-contrast barium enema for screening of colorectal cancer: comparison of radiation burden  

Microsoft Academic Search

Our aim is to compare the radiation dose associated with a low-dose CT colonography (CTC) protocol for colorectal cancer screening\\u000a with that delivered by double-contrast barium enema (DCBE). CTC of twenty asymptomatic individuals (M:F = 10:10) participating\\u000a to a colorectal cancer screening program and DCBE of fifteen patients (M:F = 6:9) were evaluated. For CTC, absorbed dose was\\u000a determined by calculating the dose-length product

Emanuele Neri; Lorenzo Faggioni; Francesca Cerri; Francesca Turini; Simone Angeli; Lorenzo Cini; Franco Perrone; Fabio Paolicchi; Carlo Bartolozzi

2010-01-01

13

Comparison of absorbed radiation doses in barium and air enema reduction of intussusception: A phantom study  

Microsoft Academic Search

Objective. We assessed the relative radiation load in patients undergoing hydrostatic and pneumatic reduction of childhood intussusception.Materials and methods In a phantom study we simulated two situations occurring during reduction of intussusception. The absorbed radiation dose was measured at several positions in the phantom using either barium sulphate (BaSO4) or air in the simulated reduction, combined with either automatic exposure

J. Persliden; P. Schuwert; W. Mortensson

1996-01-01

14

The change of radiation doses to the patient when switching from conventional technique to digital technique without films in barium enema and IVU examinations. Final report SSI research project P933  

E-print Network

X-ray examinations of the colon (barium enema) and the kidneys (IVU) are combined with rather high radiation doses to the patients when using analogue technique with film-screen systems. It is therefore of great interest to see if the change from analogue to digital technique involves a reduction of doses. Barium enema and IVU examinations were monitored with DAP-meters before and after the X-ray department changed to digital techniques. For IVU also the change from storage phosphor plates to a Direct Digital detector is included. The study comprises between 53 and 87 patients for each modality of the two examinations. A considerable dose reduction was observed. In barium enema the overview images with large field sizes were omitted when using digital technique. On the other hand the number of spot images was increased from 6 to 22. The fluoroscopy time was increased from 4 minutes to 6 minutes. The DAP value was reduced from 54,3 Gy cm sup 2 to 21,9 Gy cm sup 2. For IVU a dose reduction from 44,5 Gy cm sup 2...

Sjöholm, B

2003-01-01

15

Patient satisfaction and quality of care at four diagnostic imaging procedures: mammography, double-contrast barium enema, abdominal ultrasonography and vaginal ultrasonography.  

PubMed

The objective of this study was to measure patient satisfaction and to investigate the practical implications of monitoring the quality of care at four radiology procedures. A survey was conducted immediately after the examinations in eight radiology departments: 550 patients attending for mammography, 110 for double-contrast barium enema (DCBE), 97 for abdominal ultrasonography and 90 for vaginal ultrasonography. Outcome measures were seven questionnaire scales: pain, emotional distress, information received, staff's punctuality and technical ability, facilities, and general satisfaction. Response rate was 87 %. Multivariate regression analysis showed significant differences between procedures on all scales (p < 0.001). Differences considered to be of practical importance, i. e. >/= 7 scale points, were detected on five of the scales. Mammography and DCBE caused the most pain, and vaginal US and DCBE caused the most distress. The US procedures entailed dissatisfaction with information about the procedures. The DCBE patients recorded dissatisfaction with the staff's lack of punctuality, and these and the mammography patients recorded dissatisfaction with the facilities. The findings indicate a potential for improving patients' experiences. Several aspects of care, i. e. pain management, attention to the patient's emotional concerns, explanation of procedures, punctuality and quality of the facilities, can be improved. PMID:10460397

Loken, K; Steine, S; Laerum, E

1999-01-01

16

Lower GI Series (Barium Enema)  

MedlinePLUS

... about 5 feet long in adults and absorbs water and any remaining nutrients from partially digested food passed from the small intestine. The large intestine then changes waste from liquid to a solid matter called stool. Stool passes from the colon to ...

17

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

18

21 CFR 876.5210 - Enema kit.  

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

2014-04-01

19

21 CFR 876.5210 - Enema kit.  

Code of Federal Regulations, 2013 CFR

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

2013-04-01

20

21 CFR 876.5210 - Enema kit.  

Code of Federal Regulations, 2010 CFR

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

2010-04-01

21

21 CFR 876.5210 - Enema kit.  

Code of Federal Regulations, 2011 CFR

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

2011-04-01

22

21 CFR 876.5210 - Enema kit.  

Code of Federal Regulations, 2012 CFR

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

2012-04-01

23

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

24

Venous intravasation of barium into the inferior mesenteric vein mimicking a coloureteral fistula: a case report and literature review.  

PubMed

Venous intravasation of barium following a barium enema is a rare event. We report a case of barium venous intravasation into the inferior mesenteric vein. Because of the close proximity to the course of the left ureter, this condition was interpreted initially as a coloureteral fistula. After further analysis of the original films, and left retrograde pyelography the true diagnosis was established. A literature review of barium intravasation is presented. PMID:2642308

Baer, H M; Siegelbaum, M H; Seidmon, E J; Kendall, A R

1989-01-01

25

CRC Screening With Double-Contrast Barium Enema  

Cancer.gov

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

26

Rectal impaction following enema with concrete mix.  

PubMed

This article describes an unusual rectal foreign body resulting from homosexual anal erotic activities. The patient had used an enema containing a concrete mix which became impacted and required surgical removal. The use, abuse, and complications of enemas are reviewed. PMID:3649167

Stephens, P J; Taff, M L

1987-06-01

27

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,...

28

Barium Sulfate  

MedlinePLUS

... uses a computer to put together x-ray images to create cross-sectional or three dimensional pictures of the inside of the body). Barium sulfate is in a class of medications called radiopaque contrast media. It works by coating the esophagus, stomach, or ...

29

[Outpatient emergencies].  

PubMed

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

Rivallan, Armel; Le Nagard, Philippe

2014-01-01

30

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

PubMed Central

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

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

2006-01-01

31

Hyperphosphataemia after enemas in childhood: prevention and treatment.  

PubMed Central

The case of a child with severe hyperphosphataemia and symptomatic hypocalcaemia secondary to retention of phosphate administered through an antegrade continence enema is reported. Caution should be exercised with the use of phosphate enemas and prompt action taken to remedy retention. The use of glucose with insulin in the emergency management of acute hyperphosphataemia is discussed. PMID:8481047

Hunter, M F; Ashton, M R; Griffiths, D M; Ilangovan, P; Roberts, J P; Walker, V

1993-01-01

32

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

Microsoft Academic Search

BACKGROUND: Enemas are used during labour in obstetric settings with the belief that they reduce puerperal and neonatal infections, shorten labour duration, and make delivery cleaner for attending personnel. However, a systematic review of the literature found insufficient evidence to support the use of enemas. The objective of this RCT was to address an identified knowledge gap by determining the

Luis Gabriel Cuervo; María del Pilar Bernal; Natalia Mendoza

2006-01-01

33

Isoosmolar Enemas Demonstrate Preferential Gastrointestinal Distribution, Safety, and Acceptability Compared with Hyperosmolar and Hypoosmolar Enemas as a Potential Delivery Vehicle for Rectal Microbicides  

PubMed Central

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 [99mTc-diethylene triamine pentaacetic acid (DTPA)] to assess enema distribution in the colon using single photon emission computed tomography/computed tomography (SPECT/CT) imaging. Plasma 99mTc-DTPA indicated mucosal permeability. Sigmoidoscopic colon tissue biopsies were taken to assess injury as well as tissue penetration of the 99mTc-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 99mTc-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 99mTc-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-Diéguez, Alex; Du, Yong; Leal, Jeffrey P.; Lee, Linda A.; Torbenson, Michael S.

2013-01-01

34

Barium titanium glycolate: A new barium titanate powder precursor  

SciTech Connect

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

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

1996-02-01

35

Barium release system  

NASA Technical Reports Server (NTRS)

A chemical system is described for releasing a good yield of free barium neutral atoms and barium ions in the upper atmosphere and interplanetary space for the study of the geophysical properties of the medium. The barium is released in the vapor phase so that it can be ionized by solar radiation and also be excited to emit resonance radiation in the visible range. The ionized luminous cloud of barium becomes a visible indication of magnetic and electrical characteristics in space and allows determination of these properties over relatively large areas at a given time.

Lewis, B. W.; Stokes, C. S.; Smith, E. W.; Murphy, W. J. (inventors)

1973-01-01

36

Sucralfate and Methylprednisolone Enemas in Active Ulcerative Colitis (A Prospective, Single-Blind Study)  

Microsoft Academic Search

In order to investigate the role of sucralfatein active ulcerative colitis, 60 patients wererandomized to receive either sucralfate enemas (20 g\\/100ml) or methylprednisolone enemas (20 mg\\/100 ml). The enemas were administered twice daily for oneweek, and then once daily for three weeks. Clinicalevaluation was documented at entry and at two weeks andfour weeks. The sigmoidoscopic appearance of the rectal mucosa

John P. Wright; Trevor A. Winter; Sally Candy; In Marks

1999-01-01

37

Molecular Structure of Barium Chloride  

NSDL National Science Digital Library

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

2002-08-15

38

Outpatient burn management.  

PubMed

Most burn patients have injuries that may be treated on an outpatient basis. Newer silver-based dressings and improved medications for the treatment of pain and pruritus have led to further growth of outpatient care. The final barrier of distance from the burn center will decrease with the growth of telemedicine. It is incumbent for burn centers to develop outpatient guidelines to facilitate this growth of outpatient care. PMID:25085094

Warner, Petra M; Coffee, Tammy L; Yowler, Charles J

2014-08-01

39

Tailored Barium Swallow Study  

MedlinePLUS

Tailored Barium Swallow Study The TBS is a special study that is completed in radiology. The test evaluates the mouth and ... where foods and liquids go when a person swallows. It helps clinicians to identify the reasons for ...

40

Beta barium borate (BBO)  

Microsoft Academic Search

The paper contains a review of crystallographic, optical and nonlinear optical properties of beta barium borate (ß-BaB2O4 or BBO) crystal and presents a description of its typical applications in nonlinear optics and quantum electronics.

D. N. Nikogosyan

1991-01-01

41

Barium bright and heavy  

NASA Astrophysics Data System (ADS)

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

Fromm, Katharina M.

2013-02-01

42

Aspiration of barium contrast.  

PubMed

The aspiration of barium contrast is a rare complication that may occur during studies of the digestive tract. Barium is an inert material that can cause anywhere from an asymptomatic mechanical obstruction to serious symptoms of respiratory distress that can result in patient death. We present the case of a 79-year-old male patient in whom we observed the presence of contrast medium residue in the lung parenchyma as an incidental finding during hospitalization. When the patient's medical file was reviewed, images were found of a barium swallow study that the patient had undergone months earlier, and we were able to observe the exact moment of the aspiration of the contrast material. The patient had been asymptomatic since the test. PMID:25309769

Fuentes Santos, Cristina; Steen, Bárbara

2014-01-01

43

Aspiration of Barium Contrast  

PubMed Central

The aspiration of barium contrast is a rare complication that may occur during studies of the digestive tract. Barium is an inert material that can cause anywhere from an asymptomatic mechanical obstruction to serious symptoms of respiratory distress that can result in patient death. We present the case of a 79-year-old male patient in whom we observed the presence of contrast medium residue in the lung parenchyma as an incidental finding during hospitalization. When the patient's medical file was reviewed, images were found of a barium swallow study that the patient had undergone months earlier, and we were able to observe the exact moment of the aspiration of the contrast material. The patient had been asymptomatic since the test. PMID:25309769

Fuentes Santos, Cristina; Steen, Barbara

2014-01-01

44

Observed Barium Emission Rates  

NASA Technical Reports Server (NTRS)

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

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

1993-01-01

45

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

46

Coffee enema for preparation for small bowel video capsule endoscopy: a pilot study.  

PubMed

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

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

2014-07-01

47

Acute left colonic diverticulitis—compared performance of computed tomography and water-soluble contrast enema  

Microsoft Academic Search

PURPOSE: The most valuable radiologic examination to be done initially when acute left colonic diverticulitis is suspected is still a matter of controversy. This study compares the performance between water-soluble contrast enema and computed tomography. METHODS: From 1986 to 1997, all patients admitted in our emergency center with clinically suspected left-colonic diverticulitis had a contrast enema and a computed tomography

Patrick Ambrosetti; Alexandra Jenny; Christophe Becker; François Terrier; Philippe Morel

2000-01-01

48

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

49

Self-Administered Ethanol Enema Causing Accidental Death  

PubMed Central

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

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

2014-01-01

50

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

Microsoft Academic Search

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

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

1999-01-01

51

Silicosis in barium miners.  

PubMed Central

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

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

1986-01-01

52

Properties of Semiconductive Barium Titanates  

Microsoft Academic Search

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

Osamu Saburi

1959-01-01

53

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 80°C 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; Böttcher, Michael E.; Samankassou, Elias; Nägler, Thomas F.

2010-05-01

54

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

55

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

56

Barium uranyl diphosphonates  

NASA Astrophysics Data System (ADS)

Three Ba2+/UO22+ methylenediphosphonates have been prepared from mild hydrothermal treatment of uranium trioxide, methylendiphosphonic acid (C1P2) with barium hydroxide octahydrate, barium iodate monohydrate, and small aliquots of HF at 200 °C. These compounds, Ba[UO2[CH2(PO3)2]·1.4H2O (Ba-1), Ba3[(UO2)4(CH2(PO3)2)2F6]·6H2O (Ba-2), and Ba2[(UO2)2(CH2(PO3)2)F4]·5.75H2O (Ba-3) all adopt layered structures based upon linear uranyl groups and disphosphonate molecules. Ba-2 and Ba-3 are similar in that they both have UO5F2 pentagonal bipyramids that are bridged and chelated by the diphosphonate moiety into a two-dimensional zigzag anionic sheet (Ba-2) and a one-dimensional ribbon anionic chain (Ba-3). Ba-1, has a single crystallographically unique uranium metal center where the C1P2 ligand solely bridges to form [UO2[CH2(PO3)2]2- sheets. The interlayer space of the structures is occupied by Ba2+, which, along with the fluoride ion, mediates the structure formed and maintains overall charge balance.

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

2012-08-01

57

Single atom barium sources for EXO barium tagging development  

NASA Astrophysics Data System (ADS)

Barium tagging, the extraction and identification of the ^136 Xe double beta decay daughter product, would allow the Enriched Xenon Observatory (EXO) experiment to eliminate almost all backgrounds. The collaboration has made much progress in developing an ion probe to extract a barium ion from either liquid or gas xenon and an ion trap to identify a single barium ion. Yet the true efficiencies of these methods cannot be known until a source of single barium ions is available. I will talk about the Ba source R&D efforts of the EXO collaboration; they include 1) using the alpha recoil of ^148Gd on a thin layer of BaF2, 2) using an electrostatic gate to select single atoms from a Ba ion beam, and 3) using chemistry to isolate ^ 137Cs which then beta decays to Ba^+. )

Yen, Yung-Ruey

2010-02-01

58

Discovery of the Barium Isotopes  

E-print Network

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

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

2009-08-13

59

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

60

Barium light source method and apparatus  

NASA Technical Reports Server (NTRS)

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

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

2002-01-01

61

Outpatient treatment of pulmonary embolism.  

PubMed

Pulmonary embolism (PE) is traditionally treated in hospital. Growing evidence from non randomized prospective studies suggests that a substantial proportion of patients with non-massive PE might be safely treated in the outpatient setting using low molecular weight heparins. Based on this evidence, professional societies started to recommend outpatient care for selected patients with non-massive PE. Despite these recommendations, outpatient treatment of non-massive PE appears to be uncommon in clinical practice. The major barriers to PE outpatient care are, firstly, the uncertainty as how to identify low risk patients with PE who are candidates for outpatient care and secondly the lack of high quality evidence from randomized trials demonstrating the safety of PE outpatient care compared to traditional inpatient management. Also, although clinical prognostic models, echocardiography and cardiac biomarkers accurately identify low risk patients with PE in prospective studies, the benefit of risk stratification strategies based on these instruments should be demonstrated in prospective management studies and clinical trials before they can be implemented as decision aids to guide PE outpatient treatment. Before high quality evidence documenting the safety of an outpatient treatment approach is published, outpatient management of non-massive PE cannot be generally recommended. PMID:20047130

Aujesky, Drahomir; Mazzolai, Lucia; Hugli, Olivier; Perrier, Arnaud

2009-11-28

62

The Exotic Barium Bismuthates  

NASA Astrophysics Data System (ADS)

We review the remarkable properties, including superconductivity, charge-density-wave ordering and metal-insulator transitions, of lead- and potassium-doped barium bismuthate. We will discuss some of the early theoretical studies of these systems. Our recent theoretical work, on the negative-U, extended-Hubbard model for these systems, will also be described. Both the large- and intermediate-U regimes of this model were examined, using mean-field and random-phase approximations, particularly with a view to fitting various experimental properties of these bismuthates. On the basis of our studies, we point out possibilities for exotic physics in these systems. We also emphasize the different consequences of electronic and phonon-mediated mechanisms for the negative U. We show that, for an electronic mechanism, the semiconducting phases of these bismuthates must be unique, with their transport properties dominated by charge ±2e Cooperon bound states. This can explain the observed difference between the optical and transport gaps. We propose other experimental tests for this novel mechanism of charge transport and comment on the effects of disorder.

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

63

Further refinements in the plain radiologic diagnosis of splenic rupture: the air enema.  

PubMed

Plain film radiography, by appraisal of the soft tissues of the descending colon and left paracolonic gutter, comprises a safe, accurate, and quick determination of the presence of free fluid, which, in the proper clinical setting, indicates splenic rupture. The air enema, introduced under fluoroscopic control, is a valuable aid in eliminating false negatives and false positives, and also in distinguishing intraperitoneal clots from subserosal hematoma. The preoperative diagnosis was correct in 27 of 28 cases. The one error occurred in a case in which the interpretation of paravesical fluid (dog ears) was faulty, and in which the air enema had not been used. PMID:663152

Cimmino, C V; Southworth, L E

1978-06-01

64

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

65

Observations on the histochemistry of barium  

Microsoft Academic Search

The histochemistry of barium was investigated with particular reference to the use of sodium rhodizonate. It was found that not all batches of sodium rhodizonate were able to effect satisfactory visualisation of barium deposits. None of the other histological parameters considered gave a consistent indication of the presence of barium.

A. J. Chaplin; E. L. T. Turner

1983-01-01

66

Refractory concrete based on barium aluminate–barium zirconate cements for steel-making industries  

Microsoft Academic Search

Five refractory cement mixes were prepared from different proportions of barite, zirconia and calcined alumina by sintering at 1500–1550°C for 3h. The obtained cements were composed of barium aluminate and barium zirconate minerals in addition to comparable proportions of di-barium silicate.Cement mix prepared from 70wt.% barite, 10wt.% zirconia and 20wt.% alumina and containing comparable proportions of barium aluminate and barium

N. M. Khalil

2005-01-01

67

The Malone Antegrade Colonic Enema Enhances the Quality of Life in Children Undergoing Urological Incontinence Procedures  

Microsoft Academic Search

PurposeFunctional alterations of the gastrointestinal and genitourinary tracts, and physical limitations in children with spina bifida, imperforate anus and spinal cord injury challenge the ability to have independent fecal and urinary continence. Urologists have successfully helped these patients achieve urinary continence. We report our experience with the antegrade colonic enema procedure, which allows select individuals to achieve continence of stool,

P. I. Ellsworth; H. W. Webb; J. M. Crump; M. A. Barraza; P. S. Stevens; H.-G. J. Mesrobian

1996-01-01

68

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

Microsoft Academic Search

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

Guillaume Portier; Nicolas Bonhomme; Ivan Platonoff; Frank Lazorthes

2005-01-01

69

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

Code of Federal Regulations, 2010 CFR

...2010-10-01 2010-10-01 false Hospital outpatient services subject to the outpatient...PROGRAM PROSPECTIVE PAYMENT SYSTEM FOR HOSPITAL OUTPATIENT DEPARTMENT SERVICES Categories of Hospitals and Services Subject to and Excluded...

2010-10-01

70

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

Code of Federal Regulations, 2011 CFR

...2011-10-01 2011-10-01 false Hospital outpatient services subject to the outpatient...PROGRAM PROSPECTIVE PAYMENT SYSTEM FOR HOSPITAL OUTPATIENT DEPARTMENT SERVICES Categories of Hospitals and Services Subject to and Excluded...

2011-10-01

71

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

Code of Federal Regulations, 2011 CFR

...2011-10-01 2011-10-01 false Hospital outpatient services excluded from payment under the hospital outpatient prospective payment system...PROGRAM PROSPECTIVE PAYMENT SYSTEM FOR HOSPITAL OUTPATIENT DEPARTMENT SERVICES...

2011-10-01

72

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

Code of Federal Regulations, 2012 CFR

...2012-10-01 2012-10-01 false Hospital outpatient services subject to the outpatient...CONTINUED) PROSPECTIVE PAYMENT SYSTEM FOR HOSPITAL OUTPATIENT DEPARTMENT SERVICES Categories of Hospitals and Services Subject to and Excluded...

2012-10-01

73

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

Code of Federal Regulations, 2010 CFR

...2010-10-01 2010-10-01 false Hospital outpatient services excluded from payment under the hospital outpatient prospective payment system...PROGRAM PROSPECTIVE PAYMENT SYSTEM FOR HOSPITAL OUTPATIENT DEPARTMENT SERVICES...

2010-10-01

74

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

Code of Federal Regulations, 2012 CFR

...2012-10-01 2012-10-01 false Hospital outpatient services excluded from payment under the hospital outpatient prospective payment system...CONTINUED) PROSPECTIVE PAYMENT SYSTEM FOR HOSPITAL OUTPATIENT DEPARTMENT SERVICES...

2012-10-01

75

Enema use among men who have sex with men: a behavioral epidemiologic study with implications for HIV/STI prevention.  

PubMed

Enema use or douching is a risk factor for HIV/STI in men who have sex with men (MSM). However, few studies have explored enema use practices. We examined the frequency of enema use, type of products used, and reasons to use and not to use before and after receptive anal sex in a large sample of MSM (N = 4,992) recruited from 16 U.S. cities. Through online surveys, we examined personal, behavioral, and environmental factors associated with enema use. Most (52 %) participants reported having douched at least once and 35 % reported douching within the last 3 months. While most (88 %) reported enema use before receptive anal sex, 28 % douched after receptive anal sex. Most participants (65 %) used water to douche, 24 % added salt, soap, and/or antibacterial products to water, and 30 % reported using commercially available products. Being a man of color, HIV-positive, diagnosed with an STI, identifying as "versatile" in sex, and having more than two unprotected sex partners were significantly associated with recent enema use. Douching behavior appears closely associated with HIV/STI risk. Douching with water may be a concern since it may increase HIV/STI infection by damaging the epithelium. Development and promotion of a non-damaging, non-water based enema specifically for use in anal sex are recommended. In addition, the seemingly contradictory recommendations that water-based lubricant is recommended for anal sex but water-based enemas are dangerous need to be reconciled into a single consistent message. PMID:24346864

Noor, Syed W; Rosser, B R Simon

2014-05-01

76

40 CFR 721.10011 - Barium calcium manganese strontium oxide.  

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

2014-07-01

77

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

78

Complications of Transrectal Ultrasound-Guided Prostate Biopsy: Impact of Prebiopsy Enema  

PubMed Central

Purpose Transrectal ultrasound (TRUS)-guided biopsy of the prostate is usually safe. However, some patients are hospitalized owing to complications from TRUS biopsy. We identified the risk factors for complications and effective preventive measures for treating complications after TRUS biopsy. Materials and Methods Medical records and radiological images of 1,083 patients who underwent TRUS biopsy of the prostate over 10 years in Gyeongsang National University Hospital were examined retrospectively to investigate the correlation between complications after TRUS biopsy and preventive antibiotics, prebiopsy enema, number of biopsy cores, and pathological findings. Results Complications occurred in 69 patients (6.4%). The complication rates of the 1,008 patients who received antibiotics and the 75 patients who did not were 6.3% and 8.0%, respectively (p=0.469). Complication rates of the pre-biopsy enema group (n=658) and the group without prebiopsy enema (n=425) were 4.7% and 8.9%, respectively (p=0.007). Complication rates of the 6-core biopsy group (n=41) and the 12-core biopsy group (n=955) were 7.3% and 6.3%, respectively (p=0.891). Complication rates of the prostate cancer group (n=306) and the no prostate cancer group (n=713) were 6.2% and 6.6%, respectively (p=0.740). Conclusions A prebiopsy enema was associated with a reduced risk of complications after TRUS biopsy. Preventive antibiotics, number of biopsy cores, and pathological findings did not significantly influence the complication rate.

Kam, Sung Chul; Choi, See Min; Yoon, Sol; Choi, Jae Hui; Lee, Seong Hyun; Hwa, Jeong Seok; Chung, Ky Hyun

2014-01-01

79

Use of butyrate or glutamine in enema solution reduces inflammation and fibrosis in experimental diversion colitis  

PubMed Central

AIM: To investigate whether butyrate or glutamine enemas could diminish inflammation in experimental diversion colitis. METHODS: Wistar specific pathogen-free rats were submitted to a Hartmann’s end colostomy and treated with enemas containing glutamine, butyrate, or saline. Enemas were administered twice a week in the excluded segment of the colon from 4 to 12 wk after the surgical procedure. Follow-up colonoscopy was performed every 4 wk for 12 wk. The effect of treatment was evaluated using video-endoscopic and histologic scores and measuring interleukin-1?, tumor necrosis factor-alpha, and transforming growth factor beta production in organ cultures by enzyme linked immunosorbent assay. RESULTS: Colonoscopies of the diverted segment showed mucosa with hyperemia, increased number of vessels, bleeding and mucus discharge. Treatment with either glutamine or butyrate induced significant reductions in both colonoscopic (P < 0.02) and histological scores (P < 0.01) and restored the densities of collagen fibers in tissue (P = 0.015; P = 0.001), the number of goblet cells (P = 0.021; P = 0.029), and the rate of apoptosis within the epithelium (P = 0.043; P = 0.011) to normal values. The high levels of cytokines in colon explants from rats with diversion colitis significantly decreased to normal values after treatment with butyrate or glutamine. CONCLUSION: The improvement of experimental diversion colitis following glutamine or butyrate enemas highlights the importance of specific luminal nutrients in the homeostasis of the colonic mucosa and supports their utilization for the treatment of human diversion colitis. PMID:22969190

Pacheco, Rodrigo Goulart; Esposito, Christiano Costa; Muller, Lucas CM; Castelo-Branco, Morgana TL; Quintella, Leonardo Pereira; Chagas, Vera Lucia A; de Souza, Heitor Siffert P; Schanaider, Alberto

2012-01-01

80

Outpatient Adult Inguinal Hernia Repair  

PubMed Central

Repair of adult inguinal hernia has been done on an outpatient basis at our surgical facility for the past six years. In 616 consecutive repairs, complications have been remarkably few: one patient was electively admitted to hospital, two hernias have recurred and one patient needed to be catheterized. Patient acceptance has been enthusiastic. PMID:6741121

Lee, R. Hewlett; Marzoni, Francis A.; Cannon, Walter B.; Trollope, Michael L.

1984-01-01

81

Efficacy and Safety of Gwakhyangjeonggi-San Retention Enema in Normal Rats and Spontaneously Hypertensive Rats  

PubMed Central

The purpose of this study is to establish a protocol of retention-enema experiments and evaluate the antihypertensive effect and the safety of Gwakhyangjeonggi-san retention enema. Normal and spontaneously hypertensive rats (SHRs) were divided into treatment and control groups, respectively. We applied the Gwakhyangjeonggi-san extract by decoction and 0.9% NaCl in each group, estimated the blood pressure and body weight, and performed HPLC analysis. ALT, AST, BUN, and creatinine were examined. The systolic blood pressure within each group in normal rats differed significantly in time effect, and so did the diastolic blood pressure in the treatment group of normal rats. The systolic, diastolic, and mean blood pressure showed significant differences in group effect in the treatment group of the SHRs. The time effect of the body weight in both groups of normal rats differed significantly, so did group × time and time effects in both groups of SHRs. AST, ALT, BUN, and creatinine showed no significant difference between groups. We concluded that the Gwakhyangjeonggi-san retention enema has a hypotensive effect in normal rats within the regular range of blood pressure, but an antihypertensive effect in SHRs. Also, the intervention is safe and does not affect the liver and kidney functions in normal rats. PMID:23843880

Song, Eunyoung; Lee, Euiju; Bu, Yongmin; Lee, Junhee; Shin, Seungwon; Yoo, Junghee; Park, Jaewoo

2013-01-01

82

A case of cap polyposis remission by betamethasone enema after antibiotics therapy including Helicobacter pylori eradication.  

PubMed

We report the case of a 58-year-old woman who was referred to our hospital due to frequent bloody mucus diarrhea. She was diagnosed with cap polyposis based on typical endoscopic and histological findings. Colonoscopy revealed multiple, reddish, mucus-capped polypoid lesions from the rectum to the sigmoid colon. A pathological examination revealed that the polyps were covered by erosive and inflamed granulation tissue with decreased crypt cells. Laboratory data indicated positive values for Helicobacter pylori immunoglobulin G antibody and hypoproteinemia. Metronidazole, H. pylori eradication, and levofloxacin therapies were not effective; however, the subsequent administration of betamethasone enema dramatically improved the clinical symptoms and endoscopic findings. The hypoproteinemia was normalized after the therapy. The dose of the betamethasone enema was tapered gradually, and no recurrence was observed 6 months after discontinuation of the treatment. This case suggests that betamethasone enema may be considered as the second treatment choice for cap polyposis patients after H. pylori eradication, metronidazole or levofloxacin therapy. PMID:24949613

Suzuki, Hideo; Sato, Masashi; Akutsu, Daisuke; Sugiyama, Hiroaki; Sato, Taiki; Mizokami, Yuji

2014-06-01

83

Improved spectrophotometric analysis of barium styphnate  

Microsoft Academic Search

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

N. E. Brown; J. A. Blasi

1983-01-01

84

Improved spectrophotometric analysis of barium styphnate  

Microsoft Academic Search

A spectrophotometric procedure to determine the purity of barium styphnate monohydrate based upon the absorbance of the styphnate ion at 326 and 413 nm has been developed. The purity is determined by comparing the absorbance of the styphnate ion in barium styphnate and styphnic acid at pH 6.8. Our investigation has shown that the molar absorptivities and maxima of the

Norman E. Brown; Jane A. Blasi

1985-01-01

85

Barium granuloma of the transverse colon.  

PubMed Central

A case of barium sulphate granuloma of the transverse colon following gunshot wounds to the abdomen has been described. Scanning electron microscopy with electron probe microanalysis was used to confirm the presence of barium sulphate and the absence of lead or other elements related to the gunshot wounds. Images Fig. 1 Fig. 2 Fig. 3 Fig. 4 PMID:740599

McKee, P. H.; Cameron, C. H.

1978-01-01

86

REMOVAL OF BARIUM AND RADIUM FROM GROUNDWATER  

EPA Science Inventory

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

87

Medication errors in paediatric outpatients  

Microsoft Academic Search

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

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

2010-01-01

88

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. PMID:23533801

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

2013-01-01

89

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

PubMed Central

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

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

2000-01-01

90

[Clinical case of the month. Portal venous gas due to a hydrogen peroxide colic enema].  

PubMed

Portal venous gas is a worrying radiological sign that was described for the first time in 1955 among newborn children suffering from necrotizing enterocolitis. It was often related to mesenteric ischemia which mortality remains very high. Now, as radiological explorations increase, portal venous gas is more and more described in less pejorative contexts, such as hydrogen peroxide intoxication. It is what happened to our patient who underwent a hydrogen peroxide colic enema followed by a major and transient portal venous gas onset. This solved quickly and spontaneously. PMID:21638834

El, Hachemi M; Couvreur, T; Meunier, P

2011-04-01

91

Acute barium nitrate intoxication treated by hemodialysis.  

PubMed

A 22-year-old male was admitted to hospital with diarrhea and vomiting, cardiac arrhythmias, severe hypokalemia and gradual onset of muscular weakness. A potassium infusion was started, but for several hours serum potassium remained low. Evidence of toxic ingestion was initially lacking. When it became clear -- after a considerable delay -- that the patient had ingested barium nitrate, hemodialysis was started. This resulted in rapid clinical improvement with correction of hypokalemia and restored muscular function. Intoxication with barium causes hypokalemia, arrhythmias, muscular weakness and paralysis, often requiring respiratory support. This patient presented with symptoms typical of severe barium intoxication, non-responsive to potassium supplementation. There are few published reports on the use of hemodialysis in barium poisoning. This case confirms the possible benefit of hemodialysis in severe cases, where potassium supplementation alone is insufficient. PMID:15675995

Bahlmann, H; Lindwall, R; Persson, H

2005-01-01

92

Barium Isotopes in Single Presolar Grains  

NASA Technical Reports Server (NTRS)

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

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

2001-01-01

93

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

94

Use of alternative therapies by rehabilitation outpatients  

Microsoft Academic Search

Objective: To document the prevalence and patterns of use of alternative medical therapies as well as their perceived effectiveness by patients in a rehabilitation medicine outpatient practice.Design: Cross-sectional survey by written questionnaire.Setting: An urban rehabilitation medicine outpatient referral office.Patients: A random sample of 103 patients referred for rehabilitation outpatient care, while waiting for their appointment, were given a questionnaire addressing

Arthur D. Thomas; Brian S. Kahan

1998-01-01

95

Hypnosedative prescribing in outpatient psychiatry.  

PubMed

The objective of this study was to describe hypnosedative (HS) prescribing patterns in a typical sample of psychiatric outpatients. Prescription information was extracted from the clinical records of all current outpatients at two New Zealand public mental health centres. This included the type and duration of HS use and documentation of a clinical review of longstanding (>3 months) use, patient sex, age and ICD10 diagnoses. One-third of the patients (35.2%) were prescribed at least one HS; this was longstanding in two-thirds (69%). One in 10 had a coprescription of more than one HS drug. HS use was related to female sex and diagnosis, being more common among patients with nonpsychotic than psychotic disorders and very infrequent in patients on clozapine. In most longstanding cases, a clinical review had been documented. The logistic regression confirmed female sex, diagnosis and clozapine all as independent predictors of HS prescription. HS prescribing in psychiatric illness is more common than in the general population, often longstanding, with polypharmacy being common. The frequent use of antipsychotic drugs as HSs is of concern, given their side-effect profile. As there are risks involved with longstanding HS use, a better rationale for the role of medication in the management of sleep problems in psychiatric disorders is needed. PMID:23680995

Huthwaite, Mark A; Andersson, Viktoria; Stanley, James; Romans, Sarah E

2013-07-01

96

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

NASA Technical Reports Server (NTRS)

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

Ota, K.; Conger, W. L.

1977-01-01

97

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

98

Limitations in the CT Diagnosis of Acute Diverticulitis: Comparison of CT, Contrast Enema, and Pathologic Findings in 16 Patients  

Microsoft Academic Search

Pitfalls in CT diagnosis of acute diverticuhitis were investigated in 16 patients with the disease who had misleading or equivocal CT features. The CT appearance was corre- hated with contrast enemas (13 cases) and with surgical assessment and pathologic evaluation of resected specimens (12 cases). Limitations in the CT diagnosis were related to (1) marked thickening of the colonic wall,

Emil J. Balthazar; Alec Megibow; Roger A. Schinella; Richard Gordon

99

Adult Intensive Outpatient JOHN DEMPSEY HOSPITAL  

E-print Network

health issues. Hours: Monday, Tuesday, and Thursday mornings, 9 a.m. to 12 p.m. Dual Diagnosis Intensive Outpatient Program The Dual Diagnosis Intensive Outpatient Program is for patients who have challenges healthy coping skills · Interrupt disordered thoughts and behaviors · Reintegrate into work, school

Oliver, Douglas L.

100

Evaluation of medigoxin in outpatients.  

PubMed

We compared our ability to predict the dose of medigoxin and of digoxin required to achieve a fixed serum concentration (the dose requirement) in 33 outpatients. Preliminary work supported the assumptions that the steady state glycoside concentration achieved was proportional to the daily dose given to an individual, and that the bioavailability of the different tablet presentations was similar for either glycoside. We were not able to predict the dose requirement from patient characteristics with any more certainty for medigoxin than for digoxin. Not only the between-patient variability in dose requirement, but also the within-patient variability, was similar for the two glycosides. However the digoxin used had a dissolution rate of over 90% in 1 h. When comparing medigoxin with digoxin of lower, or more variable dissolution rate, medigoxin may be preferable. PMID:7286028

Smith, W R; Rodgers, E M; Nicholson, P W; Humm, R P; Gettins, D A; Dobbs, S M; Deshmukh, A A

1981-03-01

101

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. PMID:7667983

Kleerup, E C; Tashkin, D P

1995-01-01

102

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

103

CARBONATION OF BARIUM SULFIDE IN A FOAM-BED REACTOR  

Microsoft Academic Search

Carbonation of barium sulfide to barium carbonate has been experimentally investigated in a foam-bed reactor. The variables studied are height of foam bed, initial concentration of barium sulfide in aqueous solution, gas flow rate, concentration of carbon dioxide in mixture with nitrogen, and surfactant concentration in the aqueous solution. The results indicate that the conversion in the reactor increases with

Amit A. Gaikwad; Niyantha Challapalli; Ashok N. Bhaskarwar

2010-01-01

104

Four symptom dimensions in outpatients with schizophrenia  

Microsoft Academic Search

ObjectiveThe aim of this study was to assess the dimensional structure of the Positive and Negative Symptoms Scale (PANSS) to identify the psychopathological profiles of outpatients with schizophrenia.

Victòria Villalta-Gil; Miriam Vilaplana; Susana Ochoa; Montserrat Dolz; Judith Usall; Josep Maria Haro; José Almenara; Juan Luis González; Carolina Lagares

2006-01-01

105

Laparoscopic cholecystectomy as an outpatient procedure  

Microsoft Academic Search

Background:Laparoscopic cholecystectomy is still done mainly on an inpatient basis at hospitals or on an outpatient basis at ambulatory care departments inside hospitals.Study Design:We reviewed 213 cases in which outpatient laparoscopic cholecystectomy was done at an ambulatory surgical center not associated with a hospital physically or administratively. Patients were selected solely on the basis of medical history and physical examination

David Lam; Rodrigo Miranda; Shirley J Hom

1997-01-01

106

Improved Spectrophotometric Analysis of Barium Styphnate.  

National Technical Information Service (NTIS)

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 bari...

J. A. Blasi, N. E. Brown

1983-01-01

107

Barium Additives As Diesel Smoke Suppressants  

Microsoft Academic Search

The body of information presented in this paper is directed to those individuals concerned with the emission of smoke from diesel engines. A series of tests was performed on a Petter Type AA1 diesel engine using barium smoke suppressant additives. An Andersen cascade type sampler was used to collect samples and thus study the effect of the additive upon the

C. David Turley; David L. Brenchley; Robert R. Landolt

1973-01-01

108

Observations on a Fully Ionized Barium Plasma  

Microsoft Academic Search

A series of spectroscopic measurements in a fully ionized barium plasma column is described and discussed. The plasma was generated in the Q-1 device in a manner similar to that used to make alkali-metal plasmas. The observations show that the density contours and the temperature profiles in the body of the plasma were strongly influenced by conditions at the end

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

1965-01-01

109

Quantum manipulation on the Barium quadrupolar transition  

E-print Network

and stabilization of a new fiber laser system to ma- nipulate the Barium quadrupolar transition, with the aim . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 3 Trapped ion coupled to a laser field 18 3.1 Light-matter interaction . . . . . . . . . . . . . . . 55 6 Spectroscopy and sideband cooling on a single 138 Ba+ 58 6.1 Quantum jumps using the fiber laser . . . . . . . . . . . . .

Blatt, Rainer

110

Strength and toughness of barium titanate ceramics  

Microsoft Academic Search

The effect of processing variables on the mechanical and electrical properties of holmium-doped barium titanate ceramics with a positive temperature coefficient of resistance has been investigated. This paper contains details of the tests used to measure the mechanical properties of ceramics prepared using four compositional mixes. Two methods of measuring strength were used: diametral compression of disc samples and four-point

J. M. Blamey; T. V. Parry

1993-01-01

111

Regulatory and legal aspects of outpatient surgery.  

PubMed

This is a brief summary of the regulatory and other legal issues that may be raised by the provision of surgery outside of the hospital environment. Despite these potential problems, however, outpatient surgery embodies significant potential for hospitals, physicians, patients, and third-party payers. Outpatient surgical facilities embody the potential to achieve two of the government's primary goals: the provision of high-quality services and the reduction of health care costs. Third-party payers, similarly, are increasingly recognizing the benefits of outpatient surgery. Some are providing "facility" payments to cover the overhead costs of such facilities, or at least, providing an add-on to physicians' professional fees, for example, UCR (usual and customary rates) plus 20 per cent, if surgery is conducted in an office setting. Health maintenance organizations and other alternative delivery systems are actively seeking to enter into contracts with ambulatory surgical centers to provide outpatient surgical services to their enrollees because HMOs and other alternative delivery systems maximize profits by decreasing inpatient hospital utilization. In the years ahead, certificate of need and other regulatory barriers to the establishment of ambulatory surgical centers may fall as states increasingly begin to reassess the costs and benefits of certificate of need programs. In short, the trend toward outpatient surgical facilities and outpatient care generally is one that is here to stay. PMID:3544441

Romansky, M A; Millman, D S

1987-02-01

112

Outcomes of outpatient management of pediatric burns.  

PubMed

The literature surrounding pediatric burns has focused on inpatient management. The goal of this study is to characterize the population of burned children treated as outpatients and assess outcomes validating this method of burn care. A retrospective review of 953 patients treated the burn clinic and burn unit of a tertiary care center. Patient age, burn etiology, burn characteristics, burn mechanism, and referral pattern were recorded. The type of wound care and incidence of outcomes including subsequent hospital admission, infection, scarring, and surgery served as the primary outcome data. Eight hundred and thirty children were treated as outpatients with a mean time of 1.8 days for the evaluation of burn injury in our clinic. Scalds accounted for 53% of the burn mechanism, with burns to the hand/wrist being the most frequent area involved. The mean percentage of TBSA was 1.4% for the outpatient cohort and 8% for the inpatient cohort. Burns in the outpatient cohort healed with a mean time of 13.4 days. In the outpatient cohort, nine (1%) patients had subsequent admissions and three (0.4%) patients had concern for infection. Eight patients from the outpatient cohort were treated with excision and grafting. The vast majority of pediatric burns are small, although they may often involve more critical areas such as the face and hand. Outpatient wound care is an effective treatment strategy which results in low rates of complications and should become the standard of care for children with appropriate burn size and home support. PMID:25055004

Brown, Matthew; Coffee, Tammy; Adenuga, Paul; Yowler, Charles J

2014-01-01

113

Effect of Basti (oil enema) therapy for the management of cough in pertussis  

PubMed Central

Bordetella pertussis continues to circulate even in countries with good childhood vaccination coverage. Sporadic cases are still observed either due to no vaccination, incomplete vaccination or as a result of failure of vaccination. Though acute in nature it has a longer disease span with multiple life-threatening complications despite adequate management. This study was undertaken to study the effect of Sneha Basti (oil enema) in pertussis in relation to reduction in intensity of cough and complications of the disease when administered along with the conventional pharmacological therapy. Patients with the clinical picture mimicking pertussis were screened, investigated for pertussis and appropriate conventional pharmacological therapy of Erythromycin a preferred antimicrobial agent was started. Concurrently, Sneha Basti was administered to these two children. Both patients showed favourable results in terms of reduction of Kasa (cough) and the disease period with a faster recovery when compared to conventional therapy alone as has been observed routinely. No complications incurred during the complete disease span. It was concluded that if the pharmacological therapy is augmented with the complimentary systems of medicines, it can reduce the prolonged span and intensity of the disease and prevent other complications. PMID:24696577

Gujarathi, Rahul H.; Gokhale, Vivek M.; Tongaonkar, Jayashree N.

2013-01-01

114

An experimental study to evaluate the pharmacokinetic aspect of Lekhana Basti (Emaciating/ Desiccating Medicated Enema).  

PubMed

Basti therapy is used widely for treatment of various diseases in the field of Ayurveda with several proven clinical applications, however; the exact mechanism through which the benefits are obtained are yet to be ascertained in the light of the contemporary developments in clinical science. It is also not clear that when administered Basti the active principles in the formulation gain entry in to the systemic circulation or not. The present study was planned to acquire some preliminary data with regards to the absorption of phytochemical constituents of the formulations when administered in the form of Basti. Gallic acid was used as marker compound and it's absorption in systemic circulation was assessed using high performance liquid chromatography. Gallic acid present in Lekhana Basti (Emaciating/ Desiccating Medicated Enema) was found to get absorbed in to systemic circulation. Maximum concentration in serum was seen in the animal which received Lekhana Basti with Prakshepa Dravya ( Catalytic Adjuvant) in comparison to animal which received Lekhana Basti without Prakshepa Dravya. Area under curve in chromatogram was also more in animal which received Lekhana Basti with Prakshepa Dravya. From primary evidence created by HPLC study it can be said that, phytochemicals of the Basti formulation do get absorbed in systemic circulation. PMID:23284203

Auti, Swapnil S; Ashok, B K; Thakar, Anup B; Shukla, V J; Ravishankar, B

2011-10-01

115

An experimental study to evaluate the pharmacokinetic aspect of Lekhana Basti (Emaciating/ Desiccating Medicated Enema)  

PubMed Central

Basti therapy is used widely for treatment of various diseases in the field of Ayurveda with several proven clinical applications, however; the exact mechanism through which the benefits are obtained are yet to be ascertained in the light of the contemporary developments in clinical science. It is also not clear that when administered Basti the active principles in the formulation gain entry in to the systemic circulation or not. The present study was planned to acquire some preliminary data with regards to the absorption of phytochemical constituents of the formulations when administered in the form of Basti. Gallic acid was used as marker compound and it's absorption in systemic circulation was assessed using high performance liquid chromatography. Gallic acid present in Lekhana Basti (Emaciating/ Desiccating Medicated Enema) was found to get absorbed in to systemic circulation. Maximum concentration in serum was seen in the animal which received Lekhana Basti with Prakshepa Dravya ( Catalytic Adjuvant) in comparison to animal which received Lekhana Basti without Prakshepa Dravya. Area under curve in chromatogram was also more in animal which received Lekhana Basti with Prakshepa Dravya. From primary evidence created by HPLC study it can be said that, phytochemicals of the Basti formulation do get absorbed in systemic circulation. PMID:23284203

Auti, Swapnil S; Ashok, B.K.; Thakar, Anup B.; Shukla, V. J.; Ravishankar, B.

2011-01-01

116

[Perineal colostomy with antegrade continence enemas as an alternative after abdominoperineal resection for low rectal cancer].  

PubMed

Some young and active patients requiring abdominoperineal resection for rectum cancer ask for an alternative of an abdominal colostomy. We analysed the results after a combination of a perineal colostomy and antegrade continence enemas (ACE). Fifteen patients have been operated between 1999 and 2004. Follow-up was >six months in 12 patients with a mean of two years and with a maximum of 55 months. The QLQ-C30 (version 3) and CR 38 questionnaires of the EORTC have been used to evaluate quality of life aspects. Five out of 15 patients presented complications: infection of the caecal conduit (2), small bowel obstruction (1), prolapse of the perineal colostomy (1), eventration (1), urologic complications (2). ACE are still used by all patients. The volume needed was 400 ml and duration of irrigation was 30 minutes (15-45 minutes). The median score for faecal incontinence was 0 ; faecal pseudocontinence was obtained by 7/12 patients. The scores for all aspects of functioning were excellent, as well as the score for body image. The general health status and quality of life were estimated at 75% from normal value. The procedure is simple and can be performed in one operative session. A perineal colostomy with ACE seems to be a valuable and less expensive alternative for an abdominal colostomy, and certainly for total anorectal reconstruction. PMID:15935789

Penninckx, F; D'Hoore, A; Vanden Bosch, A

2005-06-01

117

Gaseous calcium, strontium, and barium phosphites  

Microsoft Academic Search

The authors investigated the composition of the vapor over calcium, strontium, and barium orthophosphates in the temperature range of 1900-2500°K. The study was carried out on an MS-1301 mass spectrometer; the vaporization was carried out from molybdenum Knudsen chambers. The heating was carried out by electron bombardment, and the temperature was measured with an EOP-66 optical pyrometer. The ions Me\\/sup

S. I. Lopatin; G. A. Semenov

1986-01-01

118

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 Díez, M.; Müller, 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

119

Outpatient percutaneous heel cord lengthening in children.  

PubMed

Outpatient percutaneous tendo Achillis lengthening is a quick, complication-free, inexpensive approach to a common pediatric orthopedic problem. The procedure is a known alternative to conventional open procedures, but it is not widely used. This study outlines the advantage of the percutaneous procedure performed in outpatient surgery with the patient under a general anesthetic. Fifty-five patients were operated on between December 1980 and March 1984. Overall results were excellent, with 97% improvement in gait. There were no infections. Percutaneous heel cord lengthening in children is a safe and simple operation, yielding results equal to those of open procedures. The advantage of outpatient surgery adds a further positive dimension to this procedure. PMID:3584437

Moreau, M J; Lake, D M

1987-01-01

120

[Outpatient drainage treatment for simple spontaneous pneumothorax].  

PubMed

Spontaneous pneumothorax has been managed on an outpatient basis by intercostal tube drainage and a portable flutter valve device (pneumothorax set). In a series of 111 selected patients, from 14 to 75 years of age, who had no complaints such as dyspnea, had neither tension-nor hemo-pneumothorax, and could promptly return to hospital in an emergency, intercostal tube insertion and continuous negative pressure drainage were instituted at the outpatient department. After approximately one hour of suction, if an air leak ceased and the lung was re-expanded, the patient was allowed to return home with a pneumothorax set connected to the chest tube. But, if an air leak persisted, they were admitted to hospital. The outpatients were followed every 2 or 3 days thereafter, and if their course was uneventful, the chest tube was removed a week later. If the onset of lung recollapse was seen at outpatient check up, hospitalization was required. Outpatient treatment was successful in 81 cases (72.9%) of the series. However, 14 patients were hospitalized because of persistent air leak at the outpatient room, and 5 were admitted because of wound pain, re-expansion edema or other reasons. During the ambulatory course, 11 were admitted to hospital with recollapse of the lung. Bacterial cultures of drain tips were positive in 22.6% of 75 examined cases, which was a higher percentage than that associated with inpatient drainage. Wound infection with St. aureus occurred in one case after removal of the drain.(ABSTRACT TRUNCATED AT 250 WORDS) PMID:7807755

Ikeda, M; Yamane, Y; Hagiwara, N; Ohnumi, K; Hasuike, M

1994-08-01

121

Prolonged Intraocular Pressure Reduction Following Intravitreal Barium Injection in Rabbits  

Microsoft Academic Search

The isolated ciliary epithelium contains barium-inhibitable potassium channels. The present study was aimed at testing the in vivo effects of barium on aqueous humor dynamics in rabbits. BaCl2was administered to one eye by topical delivery or intravitreal injection. Dynamic measurements included intraocular pressure, outflow facility, episcleral venous pressure and aqueous flow (fluorophotometry). Barium dynamics were studied using133Ba. Intraocular pressure was

THEODORE KRUPIN; ABBAS HYDERI; DIANE KARALEKAS; MARK J. FRITZ

1996-01-01

122

Creating unstable velocity-space distributions with barium injections  

NASA Technical Reports Server (NTRS)

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

Pongratz, M. B.

1983-01-01

123

Effects of barium concentration on oropharyngeal swallow timing measures.  

PubMed

Videofluoroscopy is commonly used for evaluating oropharyngeal swallowing but requires radiopaque contrast (typically barium). Prior studies suggest that some aspects of swallowing, including timing measures of oral and pharyngeal bolus transit, vary depending on barium concentration. The aim of our study was to identify timing differences in healthy swallowing between "thin" (40 % w/v concentration) and "ultrathin" (22 % w/v concentration) barium solutions. Twenty healthy adults (Ten women; mean age = 31 years) each performed a series of three noncued 5-ml swallows each of ultrathin and thin liquid barium solutions in videofluoroscopy. Timing measures were compared between barium concentrations using a mixed-model ANOVA. The measures of interest were stage transition duration, pharyngeal transit time, and duration of upper esophageal sphincter opening. Significant differences were observed in the timing measures of swallowing with respect to barium concentration. In all cases, longer durations were seen with the higher barium concentration. Barium concentration influences timing parameters in healthy swallowing, even between ultrathin and thin concentrations. Clinicians need to understand and control for the impact of different barium stimuli on swallowing physiology. PMID:24045851

Stokely, Shauna L; Molfenter, Sonja M; Steele, Catriona M

2014-02-01

124

Setting up an outpatient diagnostic index1  

PubMed Central

Clinical research in ophthalmology benefits particularly from an outpatient diagnostic index. The initial planning of such an index at an eye hospital is described and details are given of how the system was set up and is currently organized. PMID:7241474

Elkington, A R; Davies, J C

1980-01-01

125

Experiences of Stigma Among Outpatients With Schizophrenia  

Microsoft Academic Search

Many individuals with schizophrenia are devalued and discriminated against because of their mental illness. There has been only limited study of how individuals with schizophrenia experience mental illness stigma. We evaluated 74 stable outpatients with schizophrenia receiving community care. Study participants were interviewed with the Consumer Experiences of Stigma Questionnaire (CESQ), the Positive and Negative Syndrome Scale, and several social

Faith B. Dickerson; Jewel Sommerville; Andrea E. Origoni; Norman B. Ringel; Frederick Parente

2002-01-01

126

Outpatient coronary angioplasty: feasible and safe.  

PubMed

This study tested the safety and feasibility of coronary angioplasty on an outpatient basis. The purpose of this approach includes cost-effectiveness and patient comfort. Six hundred forty-four patients were randomized to either transradial or transfemoral PTCA using 6 Fr equipment. Patients were triaged to outpatient management based on a predefined set of predictors of an adverse outcome in the first 24 hr after initially successful coronary angioplasty. Three hundred seventy-five patients (58%) were discharged 4-6 hr after PTCA; 42% stayed in hospital overnight. In the outpatient group, one adverse event occurred (subacute stent thrombosis 7 hr postdischarge, nonfatal myocardial infarction). There were no major vascular complications. In the hospital group, 19 patients (7%) sustained an adverse cardiac even in the first 24 hr; 1 patient died. Patients treated via the femoral route had more (minor) bleeding complications (19 patients; 6%); in 17 of these, this was the sole reason that discharge was delayed. PTCA on an outpatient basis, performed via the radial or the femoral artery with low-profile equipment, is safe and feasible in a considerable part of a routine PTCA population. A larger proportion of transradial patients can be discharged due to a reduction in (minor) bleeding complications. PMID:15789393

Slagboom, Ton; Kiemeneij, Ferdinand; Laarman, Gert Jan; van der Wieken, Ron

2005-04-01

127

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

128

Outpatient Treatment for Older Patients with AML  

Cancer.gov

In this study, researchers are testing a new drug called tipifarnib (Zarnestra?) to treat patients aged 70 or older who have AML and who are not eligible for standard treatment. Tipifarnib is an oral medication that allows patients with AML to be treated in an outpatient setting.

129

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

130

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

131

Outpatient Management of the Borderline Adolescent.  

ERIC Educational Resources Information Center

This paper attempts to describe the psychopathology of the borderline patient. Descriptive features of the syndrome in children, adults, and adolescents are given. Genetic considerations and psychic structures are discussed with their resulting treatment implications. Finally, outpatient treatment strategies are presented in detail, including…

Godenne, Ghislaine D.

1978-01-01

132

Long-term Follow-up of Patients After Antegrade Continence Enema Procedure  

PubMed Central

Background Antegrade continence enema (ACE) has become an important therapeutic modality in the treatment of intractable constipation and fecal incontinence. There are little data available on the long-term performance of the ACE procedure in children. Methods A retrospective review of patients who underwent the ACE procedure was conducted. Irrigation characteristics and complications were noted. Outcome was assessed for individual encounters based on frequency of bowel movements, incontinence, pain, and predictability. Results One hundred seventeen patients underwent an ACE. One hundred five patients had at least 6 months of follow-up, and were included in the analysis. Diagnoses included myelodysplasia (39%), functional intractable constipation (26%), anorectal malformations (21%), nonrelaxing internal anal sphincter (7%), cerebral palsy (3%), and other diagnoses (4%). The average follow-up was 68 months (range 7–178 months). At the last follow-up, 69% of patients had successful bowel management. Of the 31% of patients who did not have successful bowel management, 20% were using the ACE despite suboptimal results, 10% required surgical removal, and 2% were not using the ACE because of behavioral opposition to it. Patients were started on normal saline, but were switched to GoLYTELY (PEG-3350 and electrolyte solution) if there was an inadequate response (61% at final encounter). Additives were needed in 34% of patients. The average irrigation dose was 23 ± 0.7mL/kg. The average toilet sitting time was 51.7 ± 3.5minutes, with infusions running for 12.1 ± 1.2minutes. Stomal complications occurred in 63% (infection, leakage, and stenosis) of patients, 33% required surgical revision and 6% eventually required diverting ostomies. Conclusions Long-term use of the ACE gives successful results in 69% of patients, whereas 63% had a stoma-related complication and 33% required surgical revision of the stoma. PMID:21502828

Siddiqui, Anees A.; Fishman, Steven J.; Bauer, Stuart B.; Nurko, Samuel

2013-01-01

133

Social class and participation in outpatient care by schizophrenics  

Microsoft Academic Search

Based on a random sample of male schizophrenics, the relationship between social class and involvement in outpatient treatment was investigated. It was found that the likelihood of utilizing outpatient facilities is significantly related to social class status, lower-class patients being less often involved. Participation in outpatient treatment was also assessed in relation to severity of pathology, marital status, and hospitalization.

Gary Labreche; R. Jay Turner; Lawrence J. Zabo

1969-01-01

134

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. PMID:23049194

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

2012-01-01

135

Migration and escape of barium atoms in a thermionic cathode  

Microsoft Academic Search

A quantitative study of the physical processes on a thermionic cathode that are crucial to both cathode life and noise are investigated. Of particular interest are the transport of the barium atoms from the cathode interior to the cathode surface and beyond. To investigate these physical processes, a model of barium migration to the surface and its subsequent removal by

Kevin L. Jensen; Y. Y. Lau; B. Levush

2000-01-01

136

PHOTOSENSITIVE CENTERS AND CHARGE TRANSFER PROCESSES IN BARIUM CALCIUM TITANATE  

E-print Network

PHOTOSENSITIVE CENTERS AND CHARGE TRANSFER PROCESSES IN BARIUM CALCIUM TITANATE G.MALOVICHKO, V calcium titanate crystals, Ba0.77Ca0.23TiO3, in the temperature range between 4.2 K and 300 K are reported of crystals from barium titanate (BT) family make them promising candidates for various applications

Malovichko, Galina

137

Barium Tagging for the Enriched Xenon Observatory (EXO)  

NASA Astrophysics Data System (ADS)

The EXO experiment is designed to search for zero-neutrino double beta decay of the isotope Xe^136, in order to better understand the nature of neutrinos. Since the daughter of this decay is barium (Ba^136), detecting the presence of Ba^136 at a decay site (called ``barium tagging'') is the best way to reject backgrounds in the search for this decay. It is hopeful that barium tagging will be implemented in the next phase of EXO. One proposed barium tagging method is to trap the barium ion in a solid xenon matrix (by freezing the liquid xenon surrounding the decay), and move it to another location to do laser-induced fluorescence spectroscopy counting. Our group at CSU is researching the detection of single barium ions and atoms within a solid xenon matrix. A barium ion beam is used to implant the ions into freezing xenon, where laser spectroscopy is then performed. We demonstrate successful detection of very small numbers, and are nearing single-barium detection.

Walton, Timothy

2012-10-01

138

Cardiotoxic and bronchoconstrictor effects of industrial metal fumes containing barium.  

PubMed

For certain metal arc-welding and other metal processing operations, compounds of barium are used as flux components. Airborne fumes generated by welding with electrodes using barium fluoride or carbonate fluxes may contain 15-30% of barium in readily water-soluble form (Dare et al. 1984). Urine of welders inhaling such fumes was shown to contain elevated levels of barium ions (up to 234 micrograms/l). To assess the possible hazards of such exposure, the toxic potencies of fume samples, expressed in terms of their water-soluble barium ion contents, were compared with effects of solutions of barium salts in anaesthetised guinea-pigs. Dose-effect relationships were established and it was verified that acute toxic effects of inhaled aerosols or of intravenous bolus administration correlated with the barium contents of various forms of welding fumes. Bronchopulmonary reactivity to the barium was observed as marked increases in resistance to ventilatory air-flow, indicating bronchoconstriction. Simultaneously, marked pressor effects on blood pressure occurred. ECG abnormalities indicated myocardial hyperexcitability. Effects were modified by nifedipine and propranolol pretreatments. PMID:3468925

Hicks, R; Caldas, L Q; Dare, P R; Hewitt, P J

1986-01-01

139

Experiments with remote entanglement using single barium ions Nathan Kurz  

E-print Network

Experiments with remote entanglement using single barium ions Nathan Kurz A dissertation submitted This is to certify that I have examined this copy of a doctoral dissertation by Nathan Kurz and have found entanglement using single barium ions Nathan Kurz Chair of the Supervisory Committee: Dr. Boris B. Blinov

Blinov, Boris

140

Barium strontium titanate powder obtained by polymeric precursor method  

SciTech Connect

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

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

2003-03-15

141

Current-voltage characteristics of barium polymethacrylate  

SciTech Connect

In this paper current-voltage characteristics of Barium Polymethacrylate (BaPMA) in the form of Al-BaPMA-Al structures are studied. The currents are measured in the voltage range 10 V-1 kV. At low voltages an ohmic relation is observed and at higher voltages the Poole-Frenkel mechanism is proposed. The mechanism of conduction has been explained on the basis of different current-voltage and current-temperature curves. The activation energy values calculated using Arrhenius relation fall in the range 0.25-2 eV, suggesting a sequence of trapping levels.

Chohan, M.H. (Lab. for Electrical Characterization of Polymers, Dept. of Electronics, Quaid-i-Azam Univ., Islamabad (PK)); Zulfiqar, M.; Sapra, Z.H.; Husain, R.; Zulfiqar, S. (Dept. of Chemistry, Quaid-i-Azam Univ., Islamabad (PK))

1992-06-30

142

Barium dierbium(III) tetra-sulfide.  

PubMed

Barium dierbium(III) tetra-sulfide, BaEr2S4, crystallizes with four formula units in the ortho-rhom-bic space group Pnma in the CaFe2O4 structure type. The asymmetric unit contains two Er, one Ba, and four S atoms, each with .m. site symmetry. The structure consists of channels formed by corner- and edge-sharing ErS6 octa-hedra in which Ba atoms reside. The resultant coordination of Ba is that of a bicapped trigonal prism. PMID:23476480

Mesbah, Adel; Stojko, Wojciech; Ibers, James A

2013-03-01

143

Barium dierbium(III) tetra-sulfide  

PubMed Central

Barium dierbium(III) tetra­sulfide, BaEr2S4, crystallizes with four formula units in the ortho­rhom­bic space group Pnma in the CaFe2O4 structure type. The asymmetric unit contains two Er, one Ba, and four S atoms, each with .m. site symmetry. The structure consists of channels formed by corner- and edge-sharing ErS6 octa­hedra in which Ba atoms reside. The resultant coordination of Ba is that of a bicapped trigonal prism. PMID:23476480

Mesbah, Adel; Stojko, Wojciech; Ibers, James. A

2013-01-01

144

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

145

Dielectric properties of barium titanate supramolecular nanocomposites.  

PubMed

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

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

2014-04-01

146

Production of translationally cold barium monohalide ions  

NASA Astrophysics Data System (ADS)

We have produced sympathetically cooled barium monohalide ions BaX+ (X=F, Cl, Br) by reacting trapped, laser-cooled Ba+ ions with room-temperature gas-phase neutral halogen-containing molecules. Reaction rates for two of these (SF6 and CH3Cl) have been measured and were found to be in agreement with classical models. BaX+ ions are promising candidates for cooling to the rovibrational ground state, and our method presents a straightforward way to produce these polar molecular ions.

DePalatis, M. V.; Chapman, M. S.

2013-08-01

147

Short-cavity squeezing in barium  

NASA Technical Reports Server (NTRS)

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

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

1992-01-01

148

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

2001-01-01

149

Long-Term Functional Assessment of Antegrade Colonic Enema for Combined Incontinence and Constipation Using a Modified Marsh and Kiff Technique  

Microsoft Academic Search

\\u000a Purpose  Constipation and fecal incontinence can severely affect quality of life for patients, particularly when simultaneously present.\\u000a Malone antegrade colonic enema enables periodic colonic emptying, thus preventing uncontrolled passage of feces and constipation.\\u000a \\u000a \\u000a \\u000a Methods  Eleven patients with fecal incontinence and severe constipation or perineal colostomy after Miles’ operation underwent a modified\\u000a Marsh and Kiff ileostomy for antegrade colonic enema. Before and after

Donato F. Altomare; Marcella Rinaldi; Domenico Rubini; Giuseppe Rubini; Piero Portincasa; Michele Vacca; Niccoli-Asabella Artor; Giovanni Romano; Vincenzo Memeo

2007-01-01

150

Outpatient medical records: improvements through layout engineering.  

PubMed

Dissatisfied with some functional aspects of the problem-oriented medical records used by their medical group, a committee of member physicians redesigned their office charts. Applying techniques of systematic layout planning, employed regularly as a tool of industrial engineering, these clinicians devised what they feel to be outpatient document with unique features. The resulting product forms a cohesive unit, eliminates duplication and provides many medicolegal safeguards. PMID:304275

Cook, G B

1977-12-01

151

Effects on aqueous barium titanate tape properties of passivation of barium ion leaching by using dispersants  

Microsoft Academic Search

To passivate a barium titanate (BaTiO3) ceramic powder surface from Ba2+ ion leaching in water, passivation agent layer (PAL) was formed by drying the slurry after adding a commercial polymeric dispersant. By following the several characteristic steps of actual MLCC production process, slip and green properties were compared for two different polymer-adding modes; one is the PAL and the other

Dang-Hyok Yoon; Burtrand I. Lee

2004-01-01

152

Designed microstructures in textured barium hexaferrite  

NASA Astrophysics Data System (ADS)

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

Hovis, David Brian

153

[Project geriatric outpatient clinic. A study on geriatric outpatient clinics and patient basis].  

PubMed

In 1996 PROJECT: geriatric outpatient clinic was initiated by the Ministry of Health and Social Affairs. The purpose was to collect more extensive information about geriatric outpatient clinics in Norway with regard to organization of the clinics, the types of activities and the clinics and the patients attending them. Information on the activities in 1995 was collected, and a summary prepared. Detailed records were made of the activities at 15 geriatric outpatient clinics during March 1996: 288 initial contacts and 239 repeat contacts were recorded. Assessment for mental impairment and multimorbidity constituted 41% of the referrals. The average number og patients per opening hour was rather low: 0.7 (range 0.08-2.5). The pay-back for the hospital was low and there was little incentive to operate the clinics. PMID:9417690

Nygaard, H A; Rø, O C

1997-10-30

154

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 120h and at 150°C for 5h. 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

155

Migration and redistribution of oxygen vacancy in barium titanate ceramics  

SciTech Connect

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

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

2006-08-14

156

A high-altitude barium radial injection experiment  

NASA Technical Reports Server (NTRS)

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.

1980-01-01

157

Multisource feedback analysis of pediatric outpatient teaching  

PubMed Central

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

2013-01-01

158

An evaluation of flexible fibreoptic sigmoidoscopy.  

PubMed Central

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

Vellacott, K D; Hardcastle, J D

1981-01-01

159

Study of the photovoltaic effect in thin film barium titanate  

NASA Technical Reports Server (NTRS)

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

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

1983-01-01

160

Calculated emission rates for barium releases in space  

NASA Technical Reports Server (NTRS)

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.

1989-01-01

161

Buprenorphine diversion and misuse in outpatient practice.  

PubMed

: This case is an amalgamation of several real patients in office-based treatment for prescription opioid dependence synthesized into a single theoretical case. The case illustrates the various ways in which medication diversion and misuse may be encountered in clinical practice and therapeutic responses designed to maximize positive treatment outcomes. It is followed by discussions from several expert addiction medicine providers from 3 different countries, giving their perspectives on the salient aspects of this case. This case conference should be of particular interest to clinicians working with opioid-dependent patients in an outpatient setting. PMID:25221985

Lofwall, Michelle R; Martin, Judith; Tierney, Matt; Fatséas, Mélina; Auriacombe, Marc; Lintzeris, Nicholas

2014-01-01

162

Thermal expansion of nitrates of lead, barium and strontium  

Microsoft Academic Search

The expansion coefficients of barium, strontium and lead nitrates have been studied above room temperatures. Lead nitrate\\u000a decomposes rapidly beyond 200° C. while crystals of barium nitrate crack above 270° C. Strontium nitrate exhibited no such\\u000a phenomena till 550° C.\\u000a \\u000a These crystals are isomorphous. The expansion coefficients of lead and strontium nitrates are nearly equal; they also possess\\u000a the same

R. Srinivasan

1955-01-01

163

'Skidding' of the CRRES G-9 barium release  

NASA Technical Reports Server (NTRS)

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

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

1992-01-01

164

Low density barium and bentonite mixture versus high density barium: A comparative study to optimize negative gastrointestinal contrast agents for MRI  

Microsoft Academic Search

The purpose of this study was to compare the patient tolerance and efficacy, as magnetic resonance imaging negative oral contrast agents, of a mixture of clay compound bentonite and low density barium sulfate suspension with that of higher density barium sulfate. Twenty patients were randomized into two groups: 10 patients receiving a mixture of low concentration 60% wv barium sulfate

Mark R. Paley; Ana I. Nicolas; Patricia J. Mergo; Gladys M. Torres; Sharon S. Burton; Pablo R. Ros

1997-01-01

165

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

PubMed

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

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

2014-06-01

166

Hospital outpatient pharmacies and durable medical equipment.  

PubMed

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

Smith, J E; Popielarski, E

1986-04-01

167

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

168

Co-doped Barium Phosphate Glass  

NASA Astrophysics Data System (ADS)

Co-doping of a P2O5:BaO glass matrix with divalent tin and trivalent samarium ions has been realized by the melt-quenching technique with the purpose of investigating the material's luminescent properties. Photoluminescence excitation spectra obtained by monitoring Sm3+ 4G5/2 emission showed a broad excitation band around 290 nm (absent in a Sm3+-doped reference), typical of donor/acceptor energy transfer. Under such excitation, the material exhibits a reddish-white emission. Time-resolved spectra recorded under the 290-nm excitation (non-resonant with Sm3+ excitation peaks) exposed a broad blue-white band characteristic of twofold-coordinated Sn centers and orange-red emission bands of Sm3+ ions, which appeared well separated in time in accord with their emission decay dynamics. Consequently, the data indicate that light absorption occurs at Sn centers (donors) followed by energy transfer to samarium ions (acceptors) which results in populating the 4G5/2 emitting state in Sm3+. Energy transfer pathways likely resulting in the sensitization of Sm3+ photoluminescence are discussed. Results are put into context in terms of the potential of SnO and rare-earth co-doped barium phosphate glasses for use in white light-emitting devices.

Jiménez, J. A.

2014-09-01

169

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 Grön; Matthias W. Riepe

2005-01-01

170

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

171

Creative Art Therapy Groups: A Treatment Modality for Psychiatric Outpatients  

Microsoft Academic Search

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

Marie-Céline Drapeau; Neomi Kronish

2007-01-01

172

Substance abuse treatment outcomes for cognitively impaired and intact outpatients  

Microsoft Academic Search

The purpose of this research was to examine the effects of cognitive impairment on the efficacy of substance abuse treatment outcome. Alcohol, drug, medical, legal, psychological, employment, and family functioning related treatment outcomes were examined for 26 cognitively impaired and 68 cognitively intact abusing outpatients. Subjects were enrolled in an intensive, 3-week, outpatient program for the treatment of their substance

Gordon Teichner; Michael D Horner; John C Roitzsch; Janice Herron; Angelica Thevos

2002-01-01

173

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

174

Asystole following regadenoson infusion in stable outpatients.  

PubMed

Regadenoson is a selective A2A receptor agonist approved for use as a pharmacologic stress agent for myocardial perfusion imaging after several multicenter trials demonstrated its equivalence in diagnostic accuracy for the detection of coronary artery disease and a decreased incidence of serious side effects as compared to adenosine. Recently, the FDA released a safety announcement advising of the rare but serious risk of heart attack and death associated with regadenoson and adenosine in cardiac stress testing, particularly in patients with unstable angina or cardiovascular instability. We report two cases of asystole with hemodynamic collapse in stable outpatients soon after receiving a standard regadenoson injection. The prevalence of potentially life threatening bradycardia, including asystole, associated with the use of regadenoson may be greater than previously expected. These cases highlight the need for cardiac stress labs to anticipate the potential for serious side effects with all patients during the administration of coronary vasodilators. PMID:24879452

Rosenblatt, Jeffrey; Mooney, Deirdre; Dunn, Timothy; Cohen, Mylan

2014-10-01

175

[Outpatient tinnitus management and hyperacusis training].  

PubMed

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

Pilgramm, M; Lebisch, H; Pehle, W

2012-06-01

176

42 CFR 419.32 - Calculation of prospective payment rates for hospital outpatient services.  

Code of Federal Regulations, 2012 CFR

...Calculation of prospective payment rates for hospital outpatient services. 419.32 Section...CONTINUED) PROSPECTIVE PAYMENT SYSTEM FOR HOSPITAL OUTPATIENT DEPARTMENT SERVICES Basic...Determining Prospective Payment Rates for Hospital Outpatient Services § 419.32...

2012-10-01

177

42 CFR 419.32 - Calculation of prospective payment rates for hospital outpatient services.  

Code of Federal Regulations, 2013 CFR

...Calculation of prospective payment rates for hospital outpatient services. 419.32 Section...CONTINUED) PROSPECTIVE PAYMENT SYSTEM FOR HOSPITAL OUTPATIENT DEPARTMENT SERVICES Basic...Determining Prospective Payment Rates for Hospital Outpatient Services § 419.32...

2013-10-01

178

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

Code of Federal Regulations, 2010 CFR

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

2010-10-01

179

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

Code of Federal Regulations, 2011 CFR

...2011-10-01 2011-10-01 false Outpatient hospital and clinic services: Application of upper...Noninstitutional Services Outpatient Hospital and Clinic Services § 447.321 Outpatient hospital and clinic services: Application of...

2011-10-01

180

78 FR 65660 - Medicare Program; Solicitation of Five Nominations to the Advisory Panel on Hospital Outpatient...  

Federal Register 2010, 2011, 2012, 2013

...Nominations to the Advisory Panel on Hospital Outpatient Payment (HOP, the Panel...new members to the Advisory Panel on Hospital Outpatient Payment (HOP, the Panel...associated weights, and supervision of hospital outpatient services. The Secretary...

2013-11-01

181

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

Code of Federal Regulations, 2012 CFR

...2012-10-01 2012-10-01 false Outpatient hospital and clinic services: Application of upper...Noninstitutional Services Outpatient Hospital and Clinic Services § 447.321 Outpatient hospital and clinic services: Application of...

2012-10-01

182

42 CFR 419.32 - Calculation of prospective payment rates for hospital outpatient services.  

Code of Federal Regulations, 2011 CFR

...Calculation of prospective payment rates for hospital outpatient services. 419.32 Section...PROGRAM PROSPECTIVE PAYMENT SYSTEM FOR HOSPITAL OUTPATIENT DEPARTMENT SERVICES Basic...Determining Prospective Payment Rates for Hospital Outpatient Services § 419.32...

2011-10-01

183

42 CFR 419.32 - Calculation of prospective payment rates for hospital outpatient services.  

Code of Federal Regulations, 2010 CFR

...Calculation of prospective payment rates for hospital outpatient services. 419.32 Section...PROGRAM PROSPECTIVE PAYMENT SYSTEM FOR HOSPITAL OUTPATIENT DEPARTMENT SERVICES Basic...Determining Prospective Payment Rates for Hospital Outpatient Services § 419.32...

2010-10-01

184

75 FR 45699 - Medicare Program: Changes to the Hospital Outpatient Prospective Payment System and CY 2010...  

Federal Register 2010, 2011, 2012, 2013

...Medicare Program: Changes to the Hospital Outpatient Prospective Payment...Medicare Program: Changes to the Hospital Outpatient Prospective Payment...Medicare Program: Changes to the Hospital Outpatient Prospective Payment...corrections to the PE and malpractice (MP) RVUs to align...

2010-08-03

185

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

186

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

187

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

Code of Federal Regulations, 2011 CFR

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

2011-10-01

188

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

Code of Federal Regulations, 2012 CFR

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

2012-10-01

189

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

Code of Federal Regulations, 2011 CFR

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

2011-10-01

190

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

Code of Federal Regulations, 2010 CFR

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

2010-10-01

191

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

Code of Federal Regulations, 2013 CFR

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

2013-10-01

192

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

Code of Federal Regulations, 2013 CFR

...2013-10-01 false Outpatient hospital and clinic services: Application of...Noninstitutional Services Outpatient Hospital and Clinic Services § 447.321 Outpatient hospital and clinic services: Application...

2013-10-01

193

Outpatient surgery in the cervical spine: is it safe?  

PubMed

Study Design?Systematic review. Study Rationale?As the length of stay after cervical spine surgery has decreased substantially, the feasibility and safety of outpatient cervical spine surgery come into question. Although minimal length of stay is a targeted metric for quality and costs for medical centers, the safety of outpatient cervical spine surgery has not been clearly defined. Objective?The objective of this article is to evaluate the safety of inpatient versus outpatient surgery in the cervical spine for adult patients with symptomatic or asymptomatic degenerative disc disease. Methods?A systematic review of the literature was undertaken for articles published through February 19, 2014. Electronic databases and the bibliographies of key articles were searched to identify comparative studies evaluating the safety of inpatient versus outpatient surgery in the cervical spine. Spinal cord stimulation, spinal injections, and diagnostic procedures were excluded. Two independent reviewers assessed the strength of evidence using the Grading of Recommendations, Assessment, Development, and Evaluation (GRADE) system, and disagreements were resolved by consensus. Results?Five studies that met the inclusion criteria were identified. One study reported low risk of hematoma (0% of outpatients and 1.6% of inpatients). Two studies reported on mortality and both reported no deaths in either group following surgery. Dysphagia risks ranged from 0 to 10% of outpatients and 1.6 to 5% of inpatients, and infection risks ranged from 0 to 1% of outpatients and 2 to 2.8% of inpatients. One study reported that no (0) outpatients were readmitted to the hospital due to a complication, compared with four inpatients (7%). The overall strength of evidence was insufficient for all safety outcomes examined. Conclusion?Though the studies in our systematic review did not suggest an increased risk of complication with outpatient cervical spine surgery, the strength of evidence to make a recommendation was insufficient. Further study is needed to more clearly define the role of outpatient cervical spine surgery. PMID:25278884

Lee, Michael J; Kalfas, Iain; Holmer, Haley; Skelly, Andrea

2014-10-01

194

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

195

Acceleration of barium ions near 8000 km above an aurora  

NASA Technical Reports Server (NTRS)

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.

1984-01-01

196

Rocket having barium release system to create ion clouds in the upper atmosphere  

NASA Technical Reports Server (NTRS)

A chemical system for releasing a good yield of free barium atoms and barium ions to create ion clouds in the upper atmosphere and interplanetary space for the study of the geophysical properties of the medium is presented.

Lewis, B. W.; Stokes, C. S.; Smith, E. W.; Murphy, W. J. (inventors)

1974-01-01

197

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

E-print Network

Enhanced dielectric properties from barium strontium titanate films with strontium titanate buffer in their PE state. One of the leading material candidates for tunable materials is barium strontium titanate

Alpay, S. Pamir

198

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

199

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

USGS Publications Warehouse

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

Szabo, B. J.; Joensuu, O.

1967-01-01

200

Barium Levels in Soils and Centella asiatica  

PubMed Central

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

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

2013-01-01

201

Barium Levels in Soils and Centella asiatica.  

PubMed

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

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

2013-08-01

202

[The evaluation of the presumed mutagenic activity of barium nitrate].  

PubMed

Barium nitrate, which is used in industry in the production of green signal lights, to remove gases from vacuum tubes, and in the production of barium oxide, was assayed to assess the possible mutagenic effects using both the Ames test (S. typhimurium TA 1535, TA 1537, TA 1538, TA 97a, TA 98, TA 100, TA 102c), with and without metabolic activation with the plate incorporation assay and pre-incubation assay methods, and using the mitotic crossing over test, the mitotic genic conversion test, and the retromutation test in Saccharomyces cerevisiae, D7 strain, with and without metabolic activation. In the experimental conditions of the study, at various gradually increasing concentrations, barium nitrate gave negative results. PMID:1803207

Monaco, M; Dominici, R; Barisano, P; Di Palermo, G

1991-01-01

203

Electro-optical polycrystalline barium lanthanum titanium niobate  

SciTech Connect

This patent describes a transparent electro-optic article. It comprises: of a barium lanthanum titanium niobate wherein substantially all grains are of a grain size between about 2 and about 20 micron, the article has a pore volume of less than about 1 percent, and the article has a grain size of between about 2 and about 20 microns. This patent also describes a method of forming transparent electro-optical barium lanthanum titanium niobate. It comprises: providing particles of barium carbonate, lanthanum oxide, titanium oxide, and niobium oxide, calcining the particles, sintering the calcined particles at a temperature of between about 1200{degrees} C and 1300{degrees} C. and a vacuum of between about 10{sup {minus}3} and 10{sup {minus}4} torr while under pressure to form a sintered mass, cooling the sintered mass, slicing the mass to form wafers, heating the wafers in an oxidizing atmosphere.

Mehrotra, A.K.

1991-02-19

204

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

205

The Contact Difference of Potential Between Barium and Zinc The External Work Function of Zinc  

Microsoft Academic Search

The methods of contact potential measurement described in previous reports of this series have been extended to zinc, for which the published work function data are discordant. Measurement was by the retarding potential method with variable anode, in tubes sealed from the pumps and gettered with vaporized barium. Barium was the reference metal and the measured surfaces of both barium

Paul A. Anderson

1940-01-01

206

Sputtering of a hydrogenated barium surface in a negative ion surface conversion source  

Microsoft Academic Search

Both the production of negative hydrogen ions on a barium surface and surface sputtering under low energy (~ 200 eV) intense particle bombardment is studied in the FOM Surface Conversion Experiment. We have observed a decrease in barium sputter-yield when a barium surface is exposed to an intense positive hydrogen or deuterium ion flux, extracted from a plasma. This effect

R. M. A. Heeren; D. Ciric; S. Yagura; H. J. Hopman; A. W. Kleyn

1992-01-01

207

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

E-print Network

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

Aksay, Ilhan A.

208

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

E-print Network

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

209

40 CFR 721.10010 - Barium manganese oxide (BaMnO3).  

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

2014-07-01

210

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 Section...Chemical Substances § 721.10010 Barium manganese oxide (BaMnO3 ). (a) Chemical...chemical substance identified as barium manganese oxide (BaMnO3 ) (PMN...

2013-07-01

211

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 Section...Chemical Substances § 721.10010 Barium manganese oxide (BaMnO3). (a) Chemical...chemical substance identified as barium manganese oxide (BaMnO3 ) (PMN...

2010-07-01

212

40 CFR 721.10010 - Barium manganese oxide (BaMnO3).  

Code of Federal Regulations, 2011 CFR

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

2011-07-01

213

40 CFR 721.10010 - Barium manganese oxide (BaMnO3).  

Code of Federal Regulations, 2012 CFR

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

2012-07-01

214

Compact pulse forming line using barium titanate ceramic material  

NASA Astrophysics Data System (ADS)

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

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

2011-11-01

215

Study of the photovoltaic effect in thin film barium titanate  

NASA Technical Reports Server (NTRS)

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

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

1981-01-01

216

Ionization and expansion of barium clouds in the ionosphere  

NASA Technical Reports Server (NTRS)

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

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

1993-01-01

217

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

218

Outpatient management of alcohol withdrawal syndrome.  

PubMed

Approximately 2% to 9% of patients seen in a family physician's office have alcohol dependence. These patients are at risk of developing alcohol withdrawal syndrome if they abruptly abstain from alcohol use. Alcohol withdrawal syndrome begins six to 24 hours after the last intake of alcohol, and the signs and symptoms include tremors, agitation, nausea, sweating, vomiting, hallucinations, insomnia, tachycardia, hypertension, delirium, and seizures. Treatment aims to minimize symptoms, prevent complications, and facilitate continued abstinence from alcohol. Patients with mild or moderate alcohol withdrawal syndrome can be treated as outpatients, which minimizes expense and allows for less interruption of work and family life. Patients with severe symptoms or who are at high risk of complications should receive inpatient treatment. In addition to supportive therapy, benzodiazepines, either in a fixed-dose or symptom-triggered schedule, are recommended. Medication should be given at the onset of symptoms and continued until symptoms subside. Other medications, including carbamazepine, oxcarbazepine, valproic acid, and gabapentin, have less abuse potential but do not prevent seizures. Typically, physicians should see these patients daily until symptoms subside. Although effective treatment is an initial step in recovery, long-term success depends on facilitating the patient's entry into ongoing treatment. PMID:24364635

Muncie, Herbert L; Yasinian, Yasmin; Oge', Linda

2013-11-01

219

Laboratory tests and compliance of dermatologic outpatients  

PubMed Central

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

Kim, Jaehwan

2013-01-01

220

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

PubMed Central

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

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

2014-01-01

221

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

PubMed Central

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

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

2014-01-01

222

Outpatient Workload (RVU) Predictors: Age, Gender & Beneficiary Category.  

National Technical Information Service (NTIS)

This retrospective study examines 1,529 data observations based on eligible beneficiaries who received outpatient care primary and specialty) within the catchment areas of three military treatment facilities located at Nellis AFB, Langley AFB and Travis A...

C. Moniz

2008-01-01

223

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

224

An outpatient intraperitoneal chemotherapy regimen for advanced ovarian cancer  

Microsoft Academic Search

ObjectivesTo assess the feasibility, associated toxicities, and reasons for early cessation of an outpatient intraperitoneal (IP) chemotherapy regimen for treatment of advanced ovarian cancer following optimal cytoreductive surgery.

Emily Berry; Kellie S. Matthews; Diljeet K. Singh; Barbara M. Buttin; John R. Lurain; Ronald D. Alvarez; Julian Schink

2009-01-01

225

FREQUENCY OF BORDERLINE PERSONALITY DISORDER AMONG PSYCHIATRIC OUTPATIENTS IN SHANGHAI  

PubMed Central

The objective of this study was to investigate the frequency, clinical characteristics, and comorbidity of borderline personality disorder (BPD) among psychiatric outpatients in two clinics at Shanghai Mental Health Center. A cross-sectional investigation was conducted. From 3,075 outpatients screened using the Personality Diagnostic Questionnaire-IV+, 2,284 patients positive for a personality disorder were assessed using the Structured Clinical Interview for DSM-IV Personality Disorders. The frequency of BPD among the psychiatric outpatients was 5.8%, with afrequency of 3.5% among males and 7.5% among females (p < .01). BPD was found to have extensive comorbidity with Axis I and II disorders. This study proves that BPD does occur in China. The detected frequency among outpatients is lower than that reported in North America. PMID:22686227

Wang, Lanlan; Ross, Colin A.; Zhang, Tianhong; Dai, Yunfei; Zhang, Haiyin; Tao, Mingyi; Qin, Jianying; Chen, Jue; He, Yanling; Zhang, Mingyuan; Xiao, Zeping

2014-01-01

226

Predictors of drop-out in overweight and obese outpatients  

Microsoft Academic Search

OBJECTIVE:To investigate the impact on drop-out rates of several baseline clinical characteristics of a sample of overweight and obese outpatients.DESIGN:Retrospective clinical trial.SUBJECTS:The charts of 383 patients aged 15–82 y attending an outpatient clinic for the treatment of obesity were examined from the first clinical evaluation until 1 y of diet ambulatory treatment.MEASUREMENTS:We characterised the participants at baseline on the basis

E M Inelmen; E D Toffanello; G Enzi; G Gasparini; F Miotto; G Sergi; L Busetto; EM Inelmen

2005-01-01

227

High average power generation in barium nitrate Raman laser  

NASA Astrophysics Data System (ADS)

The generation of low divergent ( M 2?1.5) first and third Stokes radiation in a barium nitrate Raman laser with average powers of 11 W and 5 W, respectively, was demonstrated. The quantum conversion efficiency was up to 21%. The possibility of thermal lens compensation in such Raman lasers was shown.

Lisinetskii, V. A.; Riesbeck, T.; Rhee, H.; Eichler, H. J.; Orlovich, V. A.

2010-04-01

228

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 ...

229

HEALTH EFFECTS OF HUMAN EXPOSURE TO BARIUM IN DRINKING WATER  

EPA Science Inventory

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

230

Barium strontium titanate powders prepared by spray pyrolysis  

Microsoft Academic Search

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

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

2005-01-01

231

Dynamics of a barium release in the magnetospheric tail  

NASA Technical Reports Server (NTRS)

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

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

1989-01-01

232

BARIUM AND RADIUM IN WATER TREATMENT PLANT WASTES  

EPA Science Inventory

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

233

Barium-140 from irradiated uranium-233 without a carrier  

SciTech Connect

The optimum conditions for uranium-233 irradiation have been selected to obtain barium-140. The latter has been isolated without a carrier in a chromatographic column packed with KRS-8 cation-exchange resin (sulfocationite) with a yield of 83 +/- 6% and a radiochemical purity of 99.7% by its elutriation with ammonium acetate solution and subsequent sublimation.

Bulatenkov, Yu.V.; Gedeonov, A.D.; Mozzhukhin, A.V.

1987-09-01

234

Adsorption of oxygen on clean and barium covered copper surfaces: an XPS, UPS and AES study  

NASA Astrophysics Data System (ADS)

XPS studies of oxygen on barium covered copper surface show two types of dissociatively chemisorbed species, viz. O x- (529.5 eV) and Oy- (531.6 eV) ( x) < y < 2). This is supported by He II spectra which show two peaks at 6 and 9.2 eV below EF. While dissociatively chemisorbed oxygen on clean copper seen at 530 eV is strongly held even up to 700 K, the oxygen on barium covered surface starts desorbing at 450 K. The surface stoichiometry of oxygen to barium has been estimated both as functions of barium coverage and of temperature for a given barium concentration. The Cu(L 3VV)/Cu(L 3M 23M 23) Auger ratio technique has been employed to show charge transfer from barium to copper on the barium covered surface and from copper to oxygen on subsequent oxygen adsorption.

Ayyoob, M.; Hegde, M. S.

1984-11-01

235

Ultra-low temperature processing of barium tellurate dielectrics  

NASA Astrophysics Data System (ADS)

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

Kwon, Do-Kyun

236

Oral anticancer agent medication adherence by outpatients  

PubMed Central

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

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

2014-01-01

237

Preliminary study of the CRRES magnetospheric barium releases  

NASA Technical Reports Server (NTRS)

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

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

1992-01-01

238

Analysis of influence of baicalin joint resveratrol retention enema on the TNF-?, SIgA, IL-2, IFN-? of rats with respiratory syncytial virus infection.  

PubMed

Explore the influence of baicalin joint resveratrol retention enema on TNF-?, SIgA, IL-2, and IFN-? of rats with respiratory syncytial virus (RSV) infection. The 60 SD rats were randomly divided into normal group, model group, baicalin group, resveratrol group, joint group, and ribavirin group. For model group, baicalin group, resveratrol group, joint group, and ribavirin group, rats were given RSV virus suspension intranasally for 3 days, and model group was not given administration. Baicalin group, resveratrol group, joint group, and ribavirin group were, respectively, given baicalin 100 mg/kg/day, resveratrol 30 mg/kg/day, baicalin joint resveratrol, and ribavirin 1 g/kg/day retention enema. After continuously given administration 7 days, rats were measured in serum TNF-?, IL-2, IFN-? levels and SIgA levels in bronchoalveolar lavage fluid. Model group, TNF-?, IL-2, IFN-?, and SIgA were significantly higher than the normal group (P < 0.05); Baicalin group, resveratrol group, ribavirin group, TNF-?, IL-2, IFN-?, and SIgA were significantly higher than the model group (P < 0.05); TNF-?, IL-2 between baicalin group, resveratrol group, ribavirin group, have no significant difference (P > 0.05); Baicalin group, resveratrol group, joint group, IFN-?, and SIgA were significantly higher than the ribavirin group (P < 0.05); Joint group TNF-?, IL-2, IFN-?, and SIgA were significantly higher than baicalin group, resveratrol group, and ribavirin group (P < 0.05). Baicalin joint resveratrol retention enema can increase RSV infection model in rats serum TNF-?, IL-2, IFN-? levels and SIgA levels in bronchoalveolar lavage fluid, which may anti-virus through this mechanism. PMID:24938899

Cheng, Kebin; Wu, Zhenghua; Gao, Beilan; Xu, Jinfu

2014-11-01

239

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

E-print Network

(23), 5697 (2004). 22. "Comparative Study of Lead Borate and Bismuth Lead Borate Glass Systems as RadiationBarium Titanate and Bismuth Oxide Nanocomposites Barium titanate, BaTiO3, and bismuth oxide Bi2O3, Condensed Matter, Vol. 15, 8927 (2003). 21. "Highly Nonlinear Bismuth-Oxide Fiber for Smooth Supercontinuun

Harmon, Julie P.

240

Low incidence of spontaneous bacterial peritonitis in asymptomatic cirrhotic outpatients  

PubMed Central

AIM: To compare the incidence of spontaneous bacterial peritonitis in cirrhotic outpatients and inpatients undergoing therapeutic paracentesis METHODS: From January 1 to May 31, 2004, 1041 patients from 70 different hospitals underwent 2123 therapeutic abdominal paracentesis (AP) performed as a outpatient procedure in 355 and as inpatient procedure in 686 cases respectively. The following parameters were compared prospectively between outpatients and inpatients: spontaneous bacterial peritonitis (SBP) prevalence, age, gender, cause of cirrhosis, symptoms, score and grade according to Child-Pugh classification, cirrhosis complications, antibiotics treatment, serum creatinine, platelet count and ascitic protein concentration. RESULTS: SBP was observed in 91 patients. In the whole population the SBP prevalence was 8.7% (95%CI: 7.2-10.6) it was 11.7% (95%CI: 9.5-14.3) in inpatients and 3.1% (95%CI: 1.7-5.5) in outpatients (P < 0.00001). SBP prevalence was 8.3% (95%CI: 4.3-15.6) in symptomatic outpatients vs 1.2% (95%CI: 0.4-3.4) in asymptomatic outpatients (P < 0.002). Patients undergoing outpatient AP were significantly different from those undergoing inpatient AP; they were older (61.1 ± 11.1 years vs 59.4 ± 11.7 years; P = 0.028), cause of cirrhosis was less often alcohol (83 .7 vs 88.2%; P < 0.001), Child-Pugh score was lower (8.9 vs 10.1; P < 0.001) and more often B than C (63.7% vs 38%; P < 0.001). In addition, in outpatients the platelet count was higher (161 ± 93 Giga/L vs 143 ± 89 Giga/L; P = 0.003), serum total bilirubin concentration was lower (38.2 ± 60.7 ?mol/L vs 96.3 ± 143.3 ?mol/L; P < 0.0001), and ascitic protein concentration higher (17.9 ± 10.7 g/L vs 14.5 ± 10.9 g/L; P < 0.001) than in inpatients. CONCLUSION: In asymptomatic cirrhotic outpatients, the incidence of spontaneous bacterial peritonitis is low thus exploratory paracentesis could be avoided in these patients without significant risk. PMID:23556041

Cadranel, Jean-Francois; Nousbaum, Jean-Baptiste; Bessaguet, Christophe; Nahon, Pierre; Nguyen-Khac, Eric; Moreau, Richard; Thevenot, Thierry; Silvain, Christine; Bureau, Christophe; Nouel, Olivier; Pilette, Christophe; Paupard, Thierry; Pauwels, Arnaud; Sapey, Thierry; Grange, Jean-Didier; Tran, Albert

2013-01-01

241

Comparison of Antibiograms Developed for Inpatients and Primary Care Outpatients  

PubMed Central

To support antimicrobial stewardship, some healthcare systems have begun creating outpatient antibiograms. We developed inpatient and primary care outpatient antibiograms for a regional health maintenance organization (HMO) and academic healthcare system (AHS). Antimicrobial susceptibilities from 16,428 Enterococcus, Staphylococcus aureus, Escherichia coli, Klebsiella pneumoniae, and Pseudomonas aeruginosa cultures from 2010 were summarized and compared. Methicillin susceptibility among S. aureus was similar in inpatients and primary care outpatients (HMO: 61.2% vs. 61.9%, p=0.951; AHS: 62.9% vs. 63.3%, p>0.999). E. coli susceptibility to trimethoprim/sulfamethoxazole was also similar (HMO: 81.8% vs. 83.6%, p=0.328; AHS: 77.2% vs. 80.9%, p=0.192), but ciprofloxacin susceptibility differed (HMO: 88.9% vs. 94.6%, p<0.001; AHS: 81.2% vs. 90.6%, p<0.001). In the HMO, ciprofloxacin-susceptible P. aeruginosa were more frequent in primary care outpatients than inpatients (91.4% vs. 79.0%, p=0.007). Comparison of cumulative susceptibilities across settings yielded no consistent patterns; therefore, outpatient primary care antibiograms may more accurately inform prudent empiric antibiotic prescribing. PMID:23541690

McGregor, Jessina C.; Bearden, David T.; Townes, John M.; Sharp, Susan E.; Gorman, Paul N.; Elman, Miriam R.; Mori, Motomi; Smith, David H.

2013-01-01

242

Lifestyle of Hemodialysis Patients in Comparison with Outpatients  

PubMed Central

Introduction: Nowadays, the chronic diseases are known to be associated with lifestyle risk factors. Hemodialysis patients encounter considerable amount of physical, mental and social pressure. Lifestyle is important because it affects quality of life and has important role in prevention. This study aimed to compare the lifestyle of hemodialysis patients and outpatients in health clinics of Tabriz. Methods: This was a case-control study on 155 hemodialysis patients and 155 outpatients referring to five dialysis centers and clinics, who met the inclusion criteria. Demographic data and some questions about lifestyle in nutrition, stress, physical activity and smoking were asked. Results: The history of hypertension among hemodialysis patients was 34.6% greater than outpatients. High daily salt consumption (more than two tablespoons a day) was 40.5% higher among hemodialysis patients than outpatients. In terms of saturated oil intake, it was 30.8%higher among hemodialysis patients. Problem in communicating with family members was 69.8% higher in hemodialysis patients. In terms of physical activity, 46.4% of outpatients had higher physical activity like walking. Conclusion: Lifestyle in different dimensions was associated with chronic kidney disease (CKD); therefore, the officials of health system are recommended to develop a program to combat chronic diseases and integrate it with providing the first-level health services. It seems that public education can have a major role in life-style modification and in chronic kidney diseases prevention.

Moghadasian, Sima; Sahebi Hagh, Mohammad Hasan; Aghaallah Hokmabadi, Leila

2012-01-01

243

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

NASA Technical Reports Server (NTRS)

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

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

1972-01-01

244

Pyroelectricity in alternating ultrathin organized molecular films incorporating barium ions  

NASA Astrophysics Data System (ADS)

Pyroelectric properties in alternating DAEP/NC Langmuir-Blodgett (LB) films and effects of incorporating the barium cations on pyroelectric behaviors have been investigated. Its pyroelectric coefficient measured is found to be 58?C m-2 K-1at 300K. The dielectric properties have been measured and used to determine the figures of merit in thermal devices. Relative permittivity ?r and dielectric loss values tan? of pyroelectric films (in the range of 1KHz - 100KHz) are 2.34~1.96 and 0.08~0.04, respectively. These data give a maximum pyroelectric figure of merit of 150?C m-2 K-1 in the alternating LB films incorporating barium ions. The effects of different deposition on pyroelectric properties are also discussed in this paper. It is indicated that the alternating LB films is promising in the field of pyroelectricity and pyroelectric infrared detector.

Ma, Shihong; Li, Shuhong; Lu, Xingze; Wang, Wencheng; Wang, Genshui; Liu, Pulin; Guo, Shaoling; Chu, Junhao

2002-12-01

245

Numerical simulation of a radially injected barium cloud  

NASA Technical Reports Server (NTRS)

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

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

1981-01-01

246

Observations and theory of the AMPTE magnetotail barium releases  

NASA Technical Reports Server (NTRS)

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

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

1987-01-01

247

Study of the photovoltaic effect in thin film barium titanate  

NASA Technical Reports Server (NTRS)

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

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

1982-01-01

248

The crystal growth of barium flouride in aqueous solution  

NASA Astrophysics Data System (ADS)

The kinetics of growth of barium flouride seed crystals were investigated in aqueous solution at 25°C using a constant composition method, in which the supersaturation and ionic strength were maintained constant by the addition of titrants consisting of barium nitrate and potassium flouride solutions. The rates of reaction, studied over a range of supersaturation (? ? 0.4 to 1.0), were interpreted in terms of crystal growth models. A spiral growth mechanism best describes the data, and scanning electron microscopy indicates a three-dimensional growth. In the presence of inorganic additives such as phosphate, however, induction periods precede a morphological two-dimensional crystallization. Coulter Counter results show little crystal agglomeration.

Barone, J. P.; Svrjcek, D.; Nancollas, G. H.

1983-06-01

249

NASA/Max Planck Institute Barium Ion Cloud Project.  

NASA Technical Reports Server (NTRS)

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

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

1973-01-01

250

Relationship of pheasant occurrence to barium in Illinois soils.  

PubMed

Distribution of the ring-necked pheasant (Phasianus colchicus) is nearly co-extensive with the boundary of Wisconsinan glaciation; this is an area of base-rich soils that are mostly developed in calcareous tills. Anderson and Stewart (1973) speculated that barium in the diet might be a factor limiting the pheasant establishment in habitats adjacent to areas of long-term sustaining populations in Illinois. Total Ba was calculated for soils of 74 conterminous counties for which there were pheasant population data. Barium over the range of about 480 to 700 mg kg(-1) soil was unrelated to pheasant occurrence or to population indeces. The selective eating of iron-manganese concretions that are enriched in Ba might present a unique pathway for Ba loading. PMID:24197899

Jones, R L

1992-04-01

251

The Skylab barium plasma injection experiments. I - Convection observations  

NASA Technical Reports Server (NTRS)

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

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

1976-01-01

252

Designing an appointment system for an outpatient department  

NASA Astrophysics Data System (ADS)

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

Panaviwat, Chalita; Lohasiriwat, Haruetai; Tharmmaphornphilas, Wipawee

2014-06-01

253

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

Microsoft Academic Search

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

Jay L. Benson; Walter H. Johnson

1966-01-01

254

Photoionization of the 4d subshell of barium  

Microsoft Academic Search

The photoionization cross section and angular distribution asymmetry parameter of the 4d10 subshell of atomic barium have been calculated using many-body perturbation theory and the relativistic random-phase approximation modified to include relaxation effects. Our main purpose is to determine whether relaxation and polarization effects can account for the large difference between recent 4d photoemission experiments and total absorption experiments. Polarization

M Kutzner; V Radojevi?; H P Kelly; Z Altun

1990-01-01

255

Photoionization of atomic barium including effects of relaxation and polarization  

Microsoft Academic Search

The photoionization cross sections of the 4d10, 5s2, 5p6, and 6s2 subshells of atomic barium and the angular distribution asymmetry parameters for the 4d10 and 5p6 subshells have been calculated using many-body perturbation theory. Our main purpose is to determine whether relaxation and polarization effects can account for the large difference between recent 4d photoemission experiments and total absorption experiments.

Mickey Kutzner; Zikri Altun; Hugh P. Kelly

1990-01-01

256

Domain Size Effect on Dielectric Properties of Barium Titanate Ceramics  

Microsoft Academic Search

Barium titanate (BaTiO3) ceramics with various grain sizes were prepared by a conventional sintering method and a two-step sintering method. The permittivity of the ceramics increased with decreasing the grain size down to 1.1 mum on average. The BaTiO3 ceramics with an average grain size of 1.1 mum had a high permittivity of 7,700. The transmission electron microscopy (TEM) observation

Takuya Hoshina; Kayo Takizawa; Jianyong Li; Takeshi Kasama; Hirofumi Kakemoto; Takaaki Tsurumi

2008-01-01

257

Ultrasonic Investigation on Nanocrystalline Barium Borate (BBO) Glass Ceramics  

Microsoft Academic Search

Barium Borate (BBO) glasses containing different compositions of BaO and B2O3 with BaF2, Cr2O3 and TiO2 have been prepared by normal melting and annealing technique. The prepared bulk BBO glasses have been subjected to heat?treatment. The heat?treated BBO glasses produce nanophase BBO crystals in its structure. The existence of nanophase structure of the BBO crystals have been studied through XRD

A. V. Gayathri Devi; V. Rajendran; K. Jeyasubramanian; N. Suresh Kumar

2006-01-01

258

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

259

Light yield and surface treatment of barium fluoride crystals  

Microsoft Academic Search

We report on a study of the light yield and surface treatment of barium fluoride (BaF2) scintillation crystals. Using a bialkali photocathode the photoelectron (p.e.) yield of BaF2 crystals was measured to be 130 p.e.\\/MeV for the fast components and 700 p.e.\\/MeV for the slow component. A somewhat hygroscopic nature for the BaF2 is found. Teflon film was found to

Z. Y. Wei; R. Y. Zhu; H. Newman; Z. W. Yin

1991-01-01

260

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 -50°C to +150°C. A complete set of elastic, piezoelectric, and dielectric constants of the tetragonal modification at 25°C is obtained. The elastic compliances show substantial deviation from cubic symmetry. Measurements in the orthorhombic state show longitudinal compliance four times higher than in

Don Berlincourt; Hans Jaffe

1958-01-01

261

Acute barium intoxication following ingestion of soap water solution  

PubMed Central

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

2012-01-01

262

Radium and barium in the Amazon River system  

Microsoft Academic Search

Data for ²²⁶Ra and ²²⁸Ra in the Amazon River system show that the activity of each radium isotope is strongly correlated with barium concentrations. Two trends are apparent, one for rivers which drain shield areas and another for all other rivers. These data suggest that there has been extensive fractionation of U, Th, and Ba during weathering in the Amazon

Willard S. Moore; John M. Edmond

1984-01-01

263

Relationship of pheasant occurrence to barium in Illinois soils  

Microsoft Academic Search

Distribution of the ring-necked pheasant (Phasianus colchicus) is nearly co-extensive with the boundary of Wisconsinan glaciation; this is an area of base-rich soils that are mostly developed in calcareous tills. Anderson and Stewart (1973) speculated that barium in the diet might be a factor limiting the pheasant establishment in habitats adjacent to areas of long-term sustaining populations in Illinois. Total

Robert L. Jones

1992-01-01

264

Outpatient percutaneous coronary intervention: Ready for prime time?  

PubMed Central

Outpatient practice after percutaneous coronary intervention (PCI) is gaining momentum due to constantly optimizing results. Furthermore, the availability of limited beds to handle the large volume of coronary interventions also promotes outpatient practice. The present report relates the current experience with same-day discharge and defines persisting challenges in promoting accelerated in-hospital turnover. Since the mid-1990s, there have been several reports on same-day discharge following uncomplicated procedures. Overall, the success of outpatient PCI practice is based on a few technological and pharmacological advances. First, the systematic use of stents and potent antiplatelet agents have revolutionized the acute success rates of PCI by virtually eliminating the risks of acute vessel closure within the first 24 h following a successful procedure. Second, the miniaturization of catheter sizes has also simplified access site management, accelerated ambulation time and limited the risks of puncture site bleeding. In this regard, the transradial approach initially described in Canada and later popularized in Europe has transformed the acute care of patients after PCI. Today, however, the practice of transradial PCI still varies largely from country to country. From the literature review, it appears that after a short period of observation (4 h to 6 h), the majority of eligible patients who have undergone uncomplicated coronary stenting can be discharged on the same day. Whereas implementation of same-day discharge to referring centres is simple, home discharge requires the development of structured outpatient programs with dedicated resources to assist the patient and family with short-term logistics, to provide reassurance, to serve as a ‘safety net’ and, lastly, to promote medication compliance and cardiovascular risk factor management. Further studies are required to better define the cost-minimization effects of outpatient PCI practice, as well as patient perception of fast-track PCI. It is proposed that outpatient PCI will likely continue to expand over the next decade. PMID:17932589

Bertrand, Olivier F; Larose, Eric; De Larochelliere, Robert; Proulx, Guy; Nguyen, Can Manh; Dery, Jean-Pierre; Gleeton, Onil; Barbeau, Gerald; Noel, Bernard; Rouleau, Jacques; Boudreault, Jean-Roch; Roy, Louis; Rodes-Cabau, Josep

2007-01-01

265

Dielectric properties of cobalt substituted M-type barium hexaferrite prepared by co-precipitation  

Microsoft Academic Search

Barium hexaferrite was synthesised via the co-precipitation method using high purity nitrates, oxides and carbonates of iron\\u000a (III), barium (II) and ammonium hydroxide. Once a phase pure sample of barium hexaferrite was obtained, it was doped, by weight,\\u000a with 1, 2, 3, 5, 10, 15, 20 and 30% cobalt oxide (Co3O4). The addition of cobalt to the BaM had the

Philip Shepherd; Kajal K. Mallick; Roger J. Green

2007-01-01

266

Absorbing properties and structural design of microwave absorbers based on carbonyl iron and barium ferrite  

Microsoft Academic Search

Carbonyl iron and barium ferrite powder (BaZn1.5Co0.5Fe16O27) were prepared in this work. The complex permittivity and permeability spectra for rubber radar absorbing materials employing carbonyl iron and barium ferrite powders were measured. A database describing the frequency dependence of the permittivities and permeabilities of the carbonyl iron and barium ferrite microwave absorbers with various powder percentage compositions in 2 18

Y. B. Feng; T. Qiu; C. Y. Shen

2007-01-01

267

Absorbing properties and structural design of microwave absorbers based on carbonyl iron and barium ferrite  

Microsoft Academic Search

Carbonyl iron and barium ferrite powder (BaZn1.5Co0.5Fe16O27) were prepared in this work. The complex permittivity and permeability spectra for rubber radar absorbing materials employing carbonyl iron and barium ferrite powders were measured. A database describing the frequency dependence of the permittivities and permeabilities of the carbonyl iron and barium ferrite microwave absorbers with various powder percentage compositions in 2–18GHz was

Y. B. Feng; T. Qiu; C. Y. Shen

2007-01-01

268

Empirical analysis of scaling and fractal characteristics of outpatients  

NASA Astrophysics Data System (ADS)

The paper uses power-law frequency distribution, power spectrum analysis, detrended fluctuation analysis, and surrogate data testing to evaluate outpatient registration data of two hospitals in China and to investigate the human dynamics of systems that use the “first come, first served” protocols. The research results reveal that outpatient behavior follow scaling laws. The results also suggest that the time series of inter-arrival time exhibit 1/f noise and have positive long-range correlation. Our research may contribute to operational optimization and resource allocation in hospital based on FCFS admission protocols.

Zhang, Li-Jiang; Liu, Zi-Xian; Guo, Jin-Li

2014-01-01

269

Different methods for the induction of labour in outpatient settings  

PubMed Central

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

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

2014-01-01

270

Single-incision laparoscopic cholecystectomy: the first 100 outpatients  

Microsoft Academic Search

Background  Single-incision laparoscopic surgery (SILS) is a well-described technique for many general surgical procedures. The SILS techniques\\u000a applied to cholecystectomy vary, and reporting has been sparse. Because most cholecystectomies are outpatient procedures performed\\u000a by busy, practicing general surgeons, the authors report their initial experience adopting this technique.\\u000a \\u000a \\u000a \\u000a \\u000a Methods  From March, 2008 to January, 2009, SILS was performed for 100 consecutive outpatients needing

Jose Erbella; Gary M. Bunch

2010-01-01

271

Childhood physical abuse in outpatients with psychosomatic symptoms  

Microsoft Academic Search

Background  In Japan and Asia, few studies have been done of physical and sexual abuse. This study was aimed to determine whether a history\\u000a of childhood physical abuse is associated with anxiety, depression and self-injurious behavior in outpatients with psychosomatic\\u000a symptoms.\\u000a \\u000a \\u000a \\u000a \\u000a Methods  We divided 564 consecutive new outpatients at the Department of Psychosomatic Medicine of Kyushu University Hospital into\\u000a two groups: a

Masanori Handa; Hideyuki Nukina; Masako Hosoi; Chiharu Kubo

2008-01-01

272

New scrutiny of outpatient therapy with I-131.  

PubMed

Recently, there has been a Congressional examination of the safety to the public when outpatients are treated with I-131. The regulations regarding this procedure are being scrutinized to make sure that public safety is being protected. An evaluation of the data indicates that when Nuclear Regulatory Commission regulations are properly followed, the use of I-131 therapy is safe for the community. Furthermore, doing these procedures as an outpatient saves money and is more convenient for the patient. However, physicians also recognize that a small minority of patients who need I-131 treatment should be treated in the hospital. PMID:21285678

Harolds, Jay A

2011-03-01

273

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

274

Barium sulfate suspension as a negative oral MRI contrast agent: in vitro and human optimization studies.  

PubMed

In vitro proton spectroscopy with line-width measurements and MR imaging were performed on various concentrations of commercially available single contrast (SC), double contrast, oral and rectal barium sulfate suspensions, as well as potassium sulfate, barium chloride, barium hydroxide, and 97% pure barium sulfate suspensions. Approximately 500 ml of 20%, 40%, 60%, and 70% w/w suspensions of SC oral barium sulfate suspensions were administered to four normal volunteers, respectively, and MR images were obtained at both 1.5 T and 0.15 T. Subsequently, 500 ml of 60% w/w suspensions of SC oral barium sulfate suspensions were administered to five normal volunteers and imaged at 1.5 T. All of the inert suspensions produced line-width broadening but the SC oral barium sulfate suspension at 50% and 70% stayed in suspension even after hours of standing undisturbed. As much as 80% of the small bowel and the entire colon were well visualized using the combination of 60% or 70% w/w SC barium sulfate suspensions with SE 550/22 and FISP pulse sequences. The effect was less at 0.15 T and also with the SE 2000/45/90 pulse sequences. We conclude that barium sulfate suspensions are useful as oral MRI contrast agents. PMID:2034046

Li, K C; Tart, R P; Fitzsimmons, J R; Storm, B L; Mao, J; Rolfes, R J

1991-01-01

275

Mechanism of action of barium ion on rat aortic smooth muscle.  

PubMed

The mechanism of action of barium ion on the aortic smooth muscle of the normal rat was investigated using in vitro calcium-depleted aortic strips. Aortic strips were depleted of calcium by repeated exposure to norepinephrine in a calcium-free bathing solution. Although calcium depletion abrogated the response of strips to catecholamines and depolarizing agents, the response to barium chloride remained quantitatively intact. The calcium influx blocker D 600 prevented the contractile response to barium but not to catecholamines, whereas phentolamine prevented the response to catecholamines but not barium. The strip response to barium was depressed by a twofold increase in extracellular magnesium concentration whether the strip was intact or calcium depleted. Although increased concentrations of calcium in the extracellular medium inhibited the contractile response to potassium ion, increases in barium merely potentiated the potassium contracture. These findings indicate that barium produces its contractile effect on vascular smooth muscle by a direct intracellular interaction with the contractile or regulatory proteins. Barium enters these cells via calcium influx channels and is probably not sequestered in a physiologically releasable pool. Unlike calcium, barium does not stabilize the smooth muscle sarcolemma when present in high concentration. PMID:6703038

Hansen, T R; Dineen, D X; Petrak, R

1984-03-01

276

76 FR 72708 - Medicare Program; Renaming and Other Changes to the Advisory Panel on Hospital Outpatient Payment...  

Federal Register 2010, 2011, 2012, 2013

...Other Changes to the Advisory Panel on Hospital Outpatient Payment Charter (Formerly...Classification Groups to the Advisory Panel on Hospital Outpatient Payment (HOP) (the Panel...to include supervision of outpatient hospital services, changing the Panel...

2011-11-25

277

76 FR 72003 - Calendar Year 2011 Cost of Outpatient Medical, Dental, and Cosmetic Surgery Services Furnished by...  

Federal Register 2010, 2011, 2012, 2013

...Outpatient Medical, Dental, and Cosmetic Surgery Services Furnished by Department...outpatient medical, dental, and cosmetic surgery services furnished by military...outpatient medical, dental, and cosmetic surgery services rates referenced...

2011-11-21

278

78 FR 62709 - Calendar Year 2013 Cost of Outpatient Medical, Dental, and Cosmetic Surgery Services Furnished by...  

Federal Register 2010, 2011, 2012, 2013

...Outpatient Medical, Dental, and Cosmetic Surgery Services Furnished by Department...outpatient medical, dental and cosmetic surgery services furnished by military...Outpatient Medical, Dental, and Cosmetic Surgery rates referenced are...

2013-10-22

279

42 CFR 484.38 - Condition of participation: Qualifying to furnish outpatient physical therapy or speech pathology...  

Code of Federal Regulations, 2012 CFR

...outpatient physical therapy or speech pathology services. 484.38 Section 484...outpatient physical therapy or speech pathology services. An HHA that wishes to furnish outpatient physical therapy or speech pathology services must meet all the...

2012-10-01

280

42 CFR 484.38 - Condition of participation: Qualifying to furnish outpatient physical therapy or speech pathology...  

Code of Federal Regulations, 2010 CFR

...outpatient physical therapy or speech pathology services. 484.38 Section 484...outpatient physical therapy or speech pathology services. An HHA that wishes to furnish outpatient physical therapy or speech pathology services must meet all the...

2010-10-01

281

42 CFR 484.38 - Condition of participation: Qualifying to furnish outpatient physical therapy or speech pathology...  

Code of Federal Regulations, 2013 CFR

...outpatient physical therapy or speech pathology services. 484.38 Section 484...outpatient physical therapy or speech pathology services. An HHA that wishes to furnish outpatient physical therapy or speech pathology services must meet all the...

2013-10-01

282

42 CFR 484.38 - Condition of participation: Qualifying to furnish outpatient physical therapy or speech pathology...  

Code of Federal Regulations, 2011 CFR

...outpatient physical therapy or speech pathology services. 484.38 Section 484...outpatient physical therapy or speech pathology services. An HHA that wishes to furnish outpatient physical therapy or speech pathology services must meet all the...

2011-10-01

283

Managing an outpatient parenteral antibiotic therapy team: challenges and solutions  

PubMed Central

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

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

2014-01-01

284

Recognition of Depressive and Anxiety Disorders in Dermatological Outpatients  

Microsoft Academic Search

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

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

2004-01-01

285

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

286

Screening for severe obstructive sleep apnea syndrome in hypertensive outpatients.  

PubMed

The authors attempted to validate a 2-stage strategy to screen for severe obstructive sleep apnea syndrome (s-OSAS) among hypertensive outpatients, with polysomnography (PSG) as the gold standard. Using a prospective design, outpatients with hypertension were recruited from medical outpatient clinics. Interventions included (1) assessment of clinical data; (2) home sleep testing (HST); and (3) 12-channnel, in-laboratory PSG. The authors developed models using clinical or HST data alone (single-stage models) or clinical data in tandem with HST (2-stage models) to predict s-OSAS. For each model, area under receiver operating characteristic curves (AUCs), sensitivity, specificity, negative likelihood ratio, and negative post-test probability (NPTP) were computed. Models were then rank-ordered based on AUC values and NPTP. HST used alone had limited accuracy (AUC=0.727, NPTP=2.9%). However, models that used clinical data in tandem with HST were more accurate in identifying s-OSAS, with lower NPTP: (1) facial morphometrics (AUC=0.816, NPTP=0.6%); (2) neck circumference (AUC=0.803, NPTP=1.7%); and Multivariable Apnea Prediction Score (AUC=0.799, NPTP=1.5%) where sensitivity, specificity, and NPTP were evaluated at optimal thresholds. Therefore, HST combined with clinical data can be useful in identifying s-OSAS in hypertensive outpatients, without incurring greater cost and patient burden associated with in-laboratory PSG. These models were less useful in identifying obstructive sleep apnea syndrome of any severity. PMID:23551728

Gurubhagavatula, Indira; Fields, Barry G; Morales, Christian R; Hurley, Sharon; Pien, Grace W; Wick, Lindsay C; Staley, Bethany A; Townsend, Raymond R; Maislin, Greg

2013-04-01

287

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

288

Evidence-Based Practice for Outpatient Clinical Teams  

ERIC Educational Resources Information Center

This column focuses on evidence-based practice (EBP) within multidisciplinary outpatient settings, but first provides some definitions. Besides EBP (Burns and Hoagwood, 2005; Guyatt and Rennie, 2002), there are also evidence-based medicine (EBM; March et al., 2005), evidence-based service (EBS; Chorpita et al., 2002), and evidence-based treatment…

Hamilton, John D.

2006-01-01

289

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

290

Cognitive assessment for CI therapy in the outpatient clinic  

E-print Network

treatment changesin nsponse to CI therapy forthe LE. Moderateto largecornlatiom that we observedbetweenCognitive assessment for CI therapy in the outpatient clinic Victor W. ark"^**, Adam J. WoodsC,Mark ~ennemeier~,SheerinAbbasa and Edward Taubb "Departmentof Physical Medicine and Rehabilitation, University

Chatterjee, Anjan

291

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

292

77 FR 5317 - Medicaid Program; Covered Outpatient Drugs  

Federal Register 2010, 2011, 2012, 2013

...outpatient drugs, including key aspects of Medicaid payment and the...at an institution of higher learning, whose primary purpose is...comments from the public on all aspects of this proposed policy...at an institution of higher learning whose primary purpose is...

2012-02-02

293

Reinforcing outpatient medical student learning using brief computer tutorials: the  

E-print Network

and John B Black3 Abstract Background: At present, what students read after an outpatient encounter, medical students completed pre-tests for two common pediatric topics: Oral Rehydration Solutions (ORS on both topics. Our main outcome was post-test scores on a given tutorial topic, contrasted by whether

294

Factors related to stress in outpatients with permanent colostomies.  

PubMed

The main purpose of this study was to explore factors related to stress in outpatients with permanent colostomies, using a convenience sample. Subjects were selected from one medical center in southern Taiwan. The Stress of Colostomy Patients Scale and demographic data were collected using questionnaires either at the colorectal outpatient department or in the home of colostomy patients. Seventy-three subjects with colostomies participated in the study. Other diseases and caregivers of colostomy patients influenced overall stress in outpatients with permanent colostomies. The five major stressors were: "I have urination problems"; "I feel tired easily owing to physical decline"; "I can't travel freely because of my colostomy"; "I worry about recurrence of the disease"; and, "I suffer from insomnia". This study provides important information for assessing the stress level of outpatients with permanent colostomies and for developing nursing assessment tools for colostomy patients. To alleviate the overall stress of colostomy patients and to help them return to the activities of daily living before the operation, health care professionals could design individual nursing care plans based on data from assessment tools. PMID:15481554

Tseng, Hui-Chen; Wang, Hsiu-Hung; Hsu, Yun-Yun; Weng, Wei-Che

2004-02-01

295

Assessing Geographical Clustering of Outpatient Psychiatric Service Utilization in Philadelphia  

E-print Network

-spot, Outpatient psychiatric service utilization, GIS, Racial disparity #12;2 Assessing Geographical Clustering, CMHC Act (1963) under the Kennedy administration established "Community Mental Health Centers" (CMHCs) across the nation to provide high-quality mental health services that are geographically and economically

Smith, Tony E.

296

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

297

Perceived support in newly registered HIV\\/AIDS clinic outpatients  

Microsoft Academic Search

This study compares levels of perceived social support in newly registered outpatients attending an HIV\\/AIDS clinic to those reported in a reference sample of other ambulatory medical populations. Perceived availability of four types of functional support is assessed: tangible, affectionate, positive social interaction and emotional-informational. Other elements of patients' support networks that might be associated with perceived support are also

R. W. Burgoyne; D. S. Saunders

2000-01-01

298

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

299

ADHD Prevalence in Adult Outpatients with Nonpsychotic Psychiatric Illnesses  

ERIC Educational Resources Information Center

Objective: The prevalence of ADHD in the general adult population has been estimated to be about 4.4%. However, few studies exist in which the prevalence of ADHD in psychiatric adult outpatient samples has been estimated. These studies suggest that the prevalence is higher than in the general population. The objective of this study is to estimate…

Almeida Montes, Luis Guillermo; Hernandez Garcia, Ana Olivia; Ricardo-Garcell, Josefina

2007-01-01

300

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

301

Outpatient Treatment of the Sexually Motivated Murderer and Potential Murderer.  

ERIC Educational Resources Information Center

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

Schlesinger, Louis B.; Revitch, Eugene

1990-01-01

302

Human Papillomaviruses and genital co-infections in gynaecological outpatients  

Microsoft Academic Search

BACKGROUND: High grade HPV infections and persistence are the strongest risk factors for cervical cancer. Nevertheless other genital microorganisms may be involved in the progression of HPV associated lesions. METHODS: Cervical samples were collected to search for human Papillomavirus (HPV), bacteria and yeast infections in gynaecologic outpatients. HPV typing was carried out by PCR and sequencing on cervical brush specimens.

Rosita Verteramo; Alessandra Pierangeli; Emanuela Mancini; Ettore Calzolari; Mauro Bucci; John Osborn; Rosa Nicosia; Fernanda Chiarini; Guido Antonelli; Anna Marta Degener

2009-01-01

303

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

304

Outpatient Assessment of Neurovisual Functions in Children with Cerebral Palsy  

ERIC Educational Resources Information Center

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

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

2010-01-01

305

A Model for Sober Housing during Outpatient Treatment  

PubMed Central

Finding a living environment that supports recovery is a major challenge for many clients attending outpatient treatment. Yet it is important because family, friends, and roommates who encourage substance use or discourage recovery can undermine the progress made in treatment. Destructive living environments are most problematic for clients who have limited incomes and reside in urban areas where housing markets are tight. Individuals who are homeless face constant threats to their sobriety and often lack the stability necessary to attend treatment consistently. Options Recovery Services is an outpatient program in Berkeley, California that uses sober living houses (SLHs) to provide an alcohol and drug free living environment to clients while they attend the outpatient program. This paper describes the structure and processes of the houses along with six month outcome data on 46 residents. Improvements included the number of months using substances, maximum number of days of substance use per month, arrests, and employment. Seventy six percent of the residents remained in the house at least 5 months and 39% reported being employed at some point during the past 30 days. Outpatient programs should consider establishing SLHs for clients who lack a living environment supportive of sobriety. PMID:19705677

Polcin, Douglas L.

2008-01-01

306

38 CFR 17.49 - Priorities for outpatient medical services and inpatient hospital care.  

Code of Federal Regulations, 2011 CFR

...outpatient medical services and inpatient hospital care. 17.49 Section 17.49 ...DEPARTMENT OF VETERANS AFFAIRS MEDICAL Hospital, Domiciliary and Nursing Home Care...outpatient medical services and inpatient hospital care. In scheduling...

2011-07-01

307

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

Federal Register 2010, 2011, 2012, 2013

...0938-AQ26 Medicare and Medicaid Programs: Hospital Outpatient Prospective Payment; Ambulatory Surgical Center Payment; Hospital Value-Based Purchasing Program...Medicare and Medicaid Programs: Hospital Outpatient Prospective Payment;...

2012-04-24

308

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

Code of Federal Regulations, 2013 CFR

... 3 2013-10-01 2013-10-01 false Hospitals subject to the hospital outpatient prospective payment system. 419...CONTINUED) PROSPECTIVE PAYMENT SYSTEM FOR HOSPITAL OUTPATIENT DEPARTMENT SERVICES Categories...

2013-10-01

309

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

Code of Federal Regulations, 2011 CFR

... 3 2011-10-01 2011-10-01 false Hospitals subject to the hospital outpatient prospective payment system. 419...MEDICARE PROGRAM PROSPECTIVE PAYMENT SYSTEM FOR HOSPITAL OUTPATIENT DEPARTMENT SERVICES Categories...

2011-10-01

310

78 FR 54842 - Medicare and Medicaid Programs: Hospital Outpatient Prospective Payment and Ambulatory Surgical...  

Federal Register 2010, 2011, 2012, 2013

...0938-AR54 Medicare and Medicaid Programs: Hospital Outpatient Prospective Payment and Ambulatory...Systems and Quality Reporting Programs; Hospital Value-Based Purchasing Program; Organ...Medicare and Medicaid Programs: Hospital Outpatient Prospective Payment and...

2013-09-06

311

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

Code of Federal Regulations, 2012 CFR

... 3 2012-10-01 2012-10-01 false Hospitals subject to the hospital outpatient prospective payment system. 419...CONTINUED) PROSPECTIVE PAYMENT SYSTEM FOR HOSPITAL OUTPATIENT DEPARTMENT SERVICES Categories...

2012-10-01

312

77 FR 217 - Medicare and Medicaid Programs: Hospital Outpatient Prospective Payment; Ambulatory Surgical...  

Federal Register 2010, 2011, 2012, 2013

...0938-AQ26 Medicare and Medicaid Programs: Hospital Outpatient Prospective Payment; Ambulatory Surgical Center Payment; Hospital Value-Based Purchasing Program...Medicare and Medicaid Programs: Hospital Outpatient Prospective Payment;...

2012-01-04

313

38 CFR 17.49 - Priorities for outpatient medical services and inpatient hospital care.  

Code of Federal Regulations, 2010 CFR

...outpatient medical services and inpatient hospital care. 17.49 Section 17.49 ...DEPARTMENT OF VETERANS AFFAIRS MEDICAL Hospital, Domiciliary and Nursing Home Care...outpatient medical services and inpatient hospital care. In scheduling...

2010-07-01

314

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

Code of Federal Regulations, 2013 CFR

...2013-10-01 2013-10-01 false Hospital services subject to the outpatient prospective...CONTINUED) PROSPECTIVE PAYMENT SYSTEM FOR HOSPITAL OUTPATIENT DEPARTMENT SERVICES Categories of Hospitals and Services Subject to and Excluded...

2013-10-01

315

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

Code of Federal Regulations, 2010 CFR

... 3 2010-10-01 2010-10-01 false Hospitals subject to the hospital outpatient prospective payment system. 419...MEDICARE PROGRAM PROSPECTIVE PAYMENT SYSTEM FOR HOSPITAL OUTPATIENT DEPARTMENT SERVICES Categories...

2010-10-01

316

38 CFR 17.49 - Priorities for outpatient medical services and inpatient hospital care.  

Code of Federal Regulations, 2013 CFR

...outpatient medical services and inpatient hospital care. 17.49 Section...VETERANS AFFAIRS MEDICAL Hospital, Domiciliary and Nursing Home Care § 17...outpatient medical services and inpatient hospital care. In scheduling...

2013-07-01

317

How Medicare Covers Self-Administered Drugs Given in Hospital Outpatient Settings  

MedlinePLUS

How Medicare Covers Self-Administered Drugs Given in Hospital Outpatient Settings Medicare Part B (Medical Insurance) generally covers care you get in a hospital outpatient setting, like an emergency department, observation unit, ...

318

38 CFR 17.49 - Priorities for outpatient medical services and inpatient hospital care.  

Code of Federal Regulations, 2012 CFR

...outpatient medical services and inpatient hospital care. 17.49 Section...VETERANS AFFAIRS MEDICAL Hospital, Domiciliary and Nursing Home Care § 17...outpatient medical services and inpatient hospital care. In scheduling...

2012-07-01

319

A review of the health impacts of barium from natural and anthropogenic exposure.  

PubMed

There is an increasing public awareness of the relatively new and expanded industrial barium uses which are potential sources of human exposure (e.g., a shale gas development that causes an increased awareness of environmental exposures to barium). However, absorption of barium in exposed humans and a full spectrum of its health effects, especially among chronically exposed to moderate and low doses of barium populations, remain unclear. We suggest a systematic literature review (from 1875 to 2014) on environmental distribution of barium, its bioaccumulation, and potential and proven health impacts (in animal models and humans) to provide the information that can be used for optimization of future experimental and epidemiological studies and developing of mitigative and preventive strategies to minimize negative health effects in exposed populations. The potential health effects of barium exposure are largely based on animal studies, while epidemiological data for humans, specifically for chronic low-level exposures, are sparse. The reported health effects include cardiovascular and kidney diseases, metabolic, neurological, and mental disorders. Age, race, dietary patterns, behavioral risks (e.g., smoking), use of medications (those that interfere with absorbed barium in human organism), and specific physiological status (e.g., pregnancy) can modify barium effects on human health. Identifying, evaluating, and predicting the health effects of chronic low-level and moderate-level barium exposures in humans is challenging: Future research is needed to develop an understanding of barium bioaccumulation in order to mitigate its potential health impacts in various exposured populations. Further, while occupationally exposed at-risk populations exist, it is also important to identify potentially vulnerable subgroups among non-occupationally exposed populations (e.g., elderly, pregnant women, children) who are at higher risk of barium exposure from drinking water and food. PMID:24844320

Kravchenko, Julia; Darrah, Thomas H; Miller, Richard K; Lyerly, H Kim; Vengosh, Avner

2014-08-01

320

Differentiating Elderly Medical and Psychiatric Outpatients With the Beck Anxiety Inventory  

Microsoft Academic Search

To ascertain whether self-reported anxious symptoms differentiated elderly (? 60 years old) medical and psychiatric outpatients, the Beck Anxiety Inventory (BAI) was administered to 45 medical outpatients without psychiatric disorders and 117 psychiatric outpatients with mixed DSM-III-R disorders. The coefficient alphas of the BAI for the medical and psychiatric outpatients were 0.86 and 0.90, respectively. The mean BAI score (19.19,

Robert A. Steer; Margaret Willman; Patricia A. J. Kay; Aaron T. Beck

1994-01-01

321

Are the CMS Hospital Outpatient Quality Measures Relevant for Rural Hospitals?  

ERIC Educational Resources Information Center

Context: Quality measures focused on outpatient settings are of increasing interest to policy makers, but little research has been conducted on hospital outpatient quality measures, especially in rural settings. Purpose: To evaluate the relevance of Centers for Medicare and Medicaid Services' (CMS) outpatient quality measures for rural hospitals,…

Casey, Michelle M.; Prasad, Shailendra; Klingner, Jill; Moscovice, Ira

2012-01-01

322

Factors that Affect Treatment Expectations of Outpatients with Substance Use Problems  

ERIC Educational Resources Information Center

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

Raylu, Namrata; Kaur, Inderjit

2012-01-01

323

Patient-Physical Therapist Collaboration in Goal Setting in the Outpatient Setting  

E-print Network

Patient-Physical Therapist Collaboration in Goal Setting in the Outpatient Setting Alice Salzman and achievement of outcomes. PURPOSE To explore ISDM between physical therapists (PTs) and patients in outpatient. PARTICIPANTS Six PT-patient pairs from four outpatient settings Physical therapists 5 years of clinical

Chisholm, Rex L.

324

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...

325

Influence of the nature of dopant oxides on the properties of semiconducting barium titanate  

SciTech Connect

This paper presents a thermochemical assessment of the process of doping barium titanate with yttrium, lanthanum, and cerium sesquioxides and their doing capabilities were compared. The thermochemical approach permits the chemical individuality of dopant oxides to be appraised. Yttrium doping of barium titanate is preferable to lanthanum or cerium doping.

Kostikov, Y.P.; Leikina, B.B.

1986-04-01

326

Effect of calcination on characteristics, surface texture and sinterability of chemically prepared barium titanate  

Microsoft Academic Search

Highly pure and finely divided barium titanate powders have been obtained by the pyrolysis of barium titanyl oxalate. The effect of time and temperature of calcination on the degree of crystallinity, fineness, and surface texture of the powders obtained have been demonstrated. The densification properties of the sintered bodies are discussed in relation to the characteristics of the calcined materials.

N. M. Ghoneim; S. Hanafi; Th. Salem

1990-01-01

327

308 Brain Research, 498 (1989) 308-314 Potassium conductance block by barium in amphibian  

E-print Network

.5 to 50.4 MS'2.At corresponding Ba2÷ concentrations, the resistance of cells in situ was somewhat lower). Barium, when applied to the retina, blocks the slow Pill potential3'2°, supporting a M~iller cell origin the effective- ness of Mfiller cells in regulating extracellular K÷ concentration ([K÷]o) in the retina. Barium

Newman, Eric A.

328

Underlayer and substrate effects in RF-magnetron sputtered barium ferrite thin film media  

Microsoft Academic Search

The effect of employing various sputtered underlayers and commercially available substrates in order to optimize the characteristics of barium ferrite (BaM) thin films for magnetic recording media have been studied. Our results show that the choice of underlayer or substrate controls the resultant surface morphology and magnetic properties of the BaM film. In particular, it was found that barium ferrite

A. T. A. Wee; J. P. Wang; A. C. H. Huan; L. P. Tan; R. Gopalakrishnan; K. L. Tan

1997-01-01

329

Charge and polarization distributions at the 90 domain wall in barium titanate ferroelectric  

E-print Network

Charge and polarization distributions at the 90° domain wall in barium titanate ferroelectric on quantum mechanics studies to provide a first-principles description of the 90° domain wall in barium in previous analyses, which have suggested domain walls ranging from 100 nm to 1 nm. These results should

Goddard III, William A.

330

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

E-print Network

with iron oxide and barium titanate nanoparticles Z. Guo a,*, S.-E. Lee a , H. Kim a , S. Park a , H.T. Hahn titanate nanoparticles fabricated by the surface-initiated-polymerization approach were investigated the introduction of the dielectric barium titanate nanoparticle into Fe2O3/PU nanocomposites. The permeability

Guo, John Zhanhu

331

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...

332

Bis(chlorido)(dimethyl-sulfoxide-?O)barium(II)  

PubMed Central

The title compound, [BaCl2(C2H6SO)], forms a Ba6Cl9 cluster in which the BaCl2 units are connected via dimethyl­sulfoxide (DMSO) and chloride bridges. The central Cl atom of the Ba6Cl9 cluster is located on a threefold inversion axis and is coordinated octa­hedrally to six barium cations. In the crystal, the clusters are arranged in rows, which are inter­connected by the DMSO mol­ecules, forming a three-dimensional network. PMID:23284316

Gschwind, Fabienne; Jansen, Martin

2012-01-01

333

Atomic Mass and Nuclear Binding Energy for Ba-171 (Barium)  

NASA Astrophysics Data System (ADS)

This document is part of the Supplement containing the complete sets of data of Subvolume B `Nuclei with Z = 55 - 100' of Volume 22 `Nuclear Binding Energies and Atomic Masses' of Landolt-Börnstein - Group I `Elementary Particles, Nuclei and Atoms', and additionally including data for nuclei with Z = 101 - 130. It provides atomic mass, mass excess, nuclear binding energy, nucleon separation energies, Q-values, and nucleon residual interaction parameters for atomic nuclei of the isotope Ba-171 (Barium, atomic number Z = 56, mass number A = 171).

Sukhoruchkin, S. I.; Soroko, Z. N.

334

Dielectric behavior of barium modified strontium bismuth titanate ceramic  

NASA Astrophysics Data System (ADS)

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

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

2014-04-01

335

Radiation doses to children during modified barium swallow studies  

Microsoft Academic Search

Background  There are minimal data on radiation doses to infants and children undergoing a modified barium swallow (MBS) study.\\u000a \\u000a \\u000a \\u000a Objective  To 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 methods  Fluoroscopic 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

336

Development of an RIS probe for barium tagging for EXO  

NASA Astrophysics Data System (ADS)

Resonance Ionization Spectroscopy (RIS) has been shown to be a highly efficient method of selective ionization. We are investigating RIS as part of a high-efficiency single ion transport method to retrieve barium ions produced in double beta decay of xenon-136 and inject them in a ion trap where they are identified via optical spectroscopy. Highly efficient Ba-tagging would substantially reduce the background due to radioactive impurities in very large double-beta decay experiments, which limits the current generation of experiments. RIS is used to re-ionize the Ba atoms after they are desorbed from the substrate on which they had been captured.

Twelker, Karl

2010-11-01

337

Barium alginate cell-delivery systems: correlation between technological parameters.  

PubMed

The most recent trends for the development of several in vitro cell cultures have been oriented towards the cell immobilisation in 3-dimensional scaffolds and cell encapsulation. In fact, an important requirement of cell survival is self-assembly in functional communities, in the presence of an artificial extracellular matrix. In our research, a previously described technique for spermatozoa encapsulation was applied to obtain capsules loaded with an opaque agent as a model, and to perform a formulative study. A process variable, barium ion concentration, was correlated to some capsule properties, such as weight, gel thickness, total and core diameter. Ion concentration can be modified to obtain capsules with predictable characteristics. PMID:12176286

Torre, M L; Faustini, M; Norberti, R; Maggi, L; Maffeo, G; Conte, U; Vigo, D

2002-08-21

338

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

339

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. PMID:23042168

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

2012-01-01

340

Setting process of lime-based conservation mortars with barium hydroxide  

SciTech Connect

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

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

2007-06-15

341

Photometric Calibration of the Barium Cloud Image in a Space Active Experiment: Determining the Release Efficiency  

NASA Astrophysics Data System (ADS)

The barium release experiment is an effective method to explore the near-earth environment and to study all kinds of space physics processes. The first space barium release experiment in China was successfully carried out by a sounding rocket on April 5, 2013. This work is devoted to calculating the release efficiency of the barium release by analyzing the optical image observed during the experiment. First, we present a method to calibrate the images grey value of barium cloud with the reference stars to obtain the radiant fluxes at different moments. Then the release efficiency is obtained by a curve fitting with the theoretical evolution model of barium cloud. The calculated result is basically consistent with the test value on ground.

Xie, Liang-Hai; Li, Lei; Wang, Jing-Dong; Tao, Ran; Cheng, Bing-Jun; Zhang, Yi-Teng

2014-01-01

342

Efficacy, safety, and applicability of outpatient treatment for diverticulitis  

PubMed Central

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

Tursi, Antonio

2014-01-01

343

Four physician communication styles in routine japanese outpatient medical encounters  

Microsoft Academic Search

BACKGROUND: Few studies have explored how physicians approach medical encounters in Japan.\\u000a \\u000a \\u000a OBJECTIVE: This study examined how Japanese physicians conduct routine medical encounters in the context of outpatient care to patients\\u000a with nonmalignant disorders.\\u000a \\u000a \\u000a \\u000a \\u000a DESIGN: Qualitative study using semi-structured interviews and direct observation.\\u000a \\u000a \\u000a \\u000a \\u000a SETTING: The outpatient department of a general hospital located in an urban area of Japan.\\u000a \\u000a \\u000a \\u000a \\u000a PARTICIPANTS: Physicians

Brian Taylor Slingsby; Seiji Yamada; Akira Akabayashi

2006-01-01

344

Plasma waves associated with the first AMPTE magnetotail barium release  

NASA Technical Reports Server (NTRS)

Plasma waves observed during the March 21, 1985, AMPTE magnetotail barium release are described. Electron plasma oscillations provided local measurements of the plasma density during both the expansion and decay phases. Immediately after the explosion, the electron density reached a peak of about 400,000/cu cm, and then started decreasing approximately as t to the -2.4 as the cloud expanded. About 6 minutes after the explosion, the electron density suddenly began to increase, reached a secondary peak of about 240/cu cm, and then slowly decayed down to the preevent level over a period of about 15 minutes. The density increase is believed to be caused by the collapse of the ion cloud into the diamagnetic cavity created by the initial expansion. The plasma wave intensities observed during the entire event were quite low. In the diamagnetic cavity, electrostatic emissions were observed near the barium ion plasma frequency, and in another band at lower frequencies. A broadband burst of electrostatic noise was also observed at the boundary of the diamagnetic cavity. Except for electron plasma oscillations, no significant wave activity was observed outside of the diamagnetic cavity.

Gurnett, D. A.; Anderson, R. R.; Bernhardt, P. A.; Luehr, H.; Haerendel, G.

1986-01-01

345

Results of magnetospheric barium ion cloud experiment of 1971  

NASA Technical Reports Server (NTRS)

The barium ion cloud experiment involved the release of about 2 kg of barium at an altitude of 31 482 km, a latitude of 6.926 N., and a longitude of 74.395 W. Significant erosion of plasma from the main ion core occurred during the initial phase of the ion cloud expansion. From the motion of the outermost striational filaments, the electric field components were determined to be 0.19 mV/m in the westerly direction and 0.68 mV/m in the inward direction. The differences between these components and those measured from balloons flown in the proximity of the extremity of the field line through the release point implied the existence of potential gradients along the magnetic field lines. The deceleration of the main core was greater than theoretically predicted. This was attributed to the formation of a polarization wake, resulting in an increase of the area of interaction and resistive dissipation at ionospheric levels. The actual orientation of the magnetic field line through the release point differed by about 10.5 deg from that predicted by magnetic field models that did not include the effect of ring current.

Adamson, D.; Fricke, C. L.; Long, S. A. T.

1975-01-01

346

Barium titanate core - gold shell nanoparticles for hyperthermia treatments  

PubMed Central

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

2013-01-01

347

Personality disorders and response to outpatient treatment of chronic pain  

Microsoft Academic Search

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

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

1996-01-01

348

A Walking Program for Outpatients in Psychiatric Rehabilitation: Pilot Study  

Microsoft Academic Search

The purposes of this quasi-experimental pilot study were to determine adherence to a 12-week group-based moderate-intensity walking program for sedentary adult outpatients with serious and persistent mental illness and to examine change from baseline to after the walking program in health status (mental and physical health, mood, and psychosocial functioning) and exercise motivation (exercise outcomes expectancies, exercise decisional balance). The

Judith McDevitt; JoEllen Wilbur; Joseph Kogan; Joan Briller

2005-01-01

349

Language difficulties in an Outpatient Clinic in Switzerland  

Microsoft Academic Search

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

Alexander Bischoff; Claude Tonnerre; Louis Loutan; Hans Stalder

1999-01-01

350

Outpatient Surgery and Patient Safety— The Patient's Voice  

Microsoft Academic Search

Four outpatient surgery centers from a large Midwestern community participated in this study assessing the impact of an intervention—aimed at improving the collection of patients' pre-operative clinical information—on both the patients' clinical outcomes and staffs' quality of working life. As part of this study the investigators developed a patient telephone survey to assess the incidence of common or undesirable postoperative

Ann Schoofs Hundt; Pascale Carayon; Scott Springman; Maureen Smith; Kelly Florek; Rupa Sheth; Margaret Dorshorst

351

Impact of Animal-Assisted Therapy for Outpatients with Fibromyalgia  

PubMed Central

Objectives Animal-assisted therapy using dogs trained to be calm and provide comfort to strangers has been used as a complementary therapy for a range of medical conditions. This study was designed to evaluate the effects of brief therapy dog visits for fibromyalgia patients attending a tertiary outpatient pain management facility compared with time spent in a waiting room. Design Open-label with waiting room control Setting Tertiary care, university-based, outpatient pain management clinic Subjects A convenience sample of fibromyalgia patients was obtained through advertisements posted in the clinic. Interventions Participants were able to spend clinic waiting time with a certified therapy dog instead of waiting in the outpatient waiting area. When the therapy dog was not available, individuals remained in the waiting area. Outcome measures Self-reported pain, fatigue, and emotional distress were recorded using 11-point numeric rating scales before and after the therapy dog visit or waiting room time. Results Data were evaluated from 106 therapy dog visits and 49 waiting room controls, with no significant between-group demographic differences in participants. Average intervention duration was 12 minutes for the therapy dog visit and 17 minutes for the waiting room control. Significant improvements were reported for pain, mood, and other measures of distress among patients after the therapy dog visit but not the waiting room control. Clinically meaningful pain relief (?2 points pain severity reduction) occurred in 34% after the therapy dog visit and 4% in the waiting room control. Outcome was not affected by the presence of comorbid anxiety or depression. Conclusions Brief therapy dog visits may provide a valuable complementary therapy for fibromyalgia outpatients. PMID:23170993

Marcus, Dawn A.; Bernstein, Cheryl D.; Constantin, Janet M.; Kunkel, Frank A.; Breuer, Paula; Hanlon, Raymond B.

2013-01-01

352

Pediatrician perceptions of an outpatient antimicrobial stewardship intervention.  

PubMed

Objective.?Inappropriate antibiotic prescribing commonly occurs in pediatric outpatients with acute respiratory tract infections. Antimicrobial stewardship programs are recommended for use in the hospital, but less is known about whether and how they will work in the ambulatory setting. Following a successful cluster-randomized trial to improve prescribing for common acute respiratory tract infections using education plus audit and feedback in a large, pediatric primary care network, we sought to explore the perceptions of the intervention and antibiotic overuse among participating clinicians. Methods.?We conducted a qualitative study using semistructured interviews with 24 pediatricians from 6 primary care practices who participated in an outpatient antimicrobial stewardship intervention. All interviews were transcribed and analyzed using a modified grounded theory approach. Results.?Deep skepticism of the audit and feedback reports emerged. Respondents ignored reports or expressed distrust about them. One respondent admitted to gaming behavior. When asked about antibiotic overuse, respondents recognized it as a problem, but they believed it was driven by the behaviors of nonpediatric physicians. Parent pressure for antibiotics was identified by all respondents as a major barrier to the more judicious use of antibiotics. Respondents reported that they sometimes "caved" to parent pressure for social reasons. Conclusions.?To improve the effectiveness and sustainability of outpatient antimicrobial stewardship, it is critical to boost the credibility of audit data, engage primary care pediatricians in recognizing that their behavior contributes to antibiotic overuse, and address parent pressure to prescribe antibiotics. PMID:25222901

Szymczak, Julia E; Feemster, Kristen A; Zaoutis, Theoklis E; Gerber, Jeffrey S

2014-10-01

353

Intensive outpatient comprehensive behavioral intervention for tics: A case series.  

PubMed

Recent randomized clinical trials have established the efficacy of Comprehensive Behavioral Intervention for Tics (CBIT) in treating children and adults with Tourette syndrome and persistent tic disorders. However, the standard CBIT protocol uses a weekly outpatient treatment format (i.e., 8 sessions over 10 wk), which may be inconvenient or impractical for some patients, particularly patients, who are required to travel long distances in order to receive care. In contrast, an intensive outpatient program may increase accessibility to evidence-based behavioral treatments for Tourette syndrome and other persistent tic disorders by eliminating the necessity of repeated travel. This case series evaluated the use of an intensive outpatient program CBIT (IOP CBIT) for the treatment of 2 preadolescent males (ages 10 and 14 years) with Tourette syndrome. The IOP CBIT treatment protocol included several hours of daily treatment over a 4-d period. Both children evidenced notable reductions in their tics and maintained treatment gains at follow-up. Moreover, both patients and their parents expressed treatment satisfaction with the IOP CBIT format. This case series addresses an important research gap in the behavioral treatment of tic disorders literature. The patients' treatment outcomes indicate that IOP CBIT is a promising treatment that warrants more systematic investigation. PMID:25325069

Blount, Tabatha H; Lockhart, Ann-Louise T; Garcia, Rocio V; Raj, Jeslina J; Peterson, Alan L

2014-10-16

354

Managing up to maximize medicare reimbursement for outpatient care.  

PubMed

An example of managing up through participation in a multidisciplinary team tasked with maximizing reimbursement under the Medicare ambulatory patient classification (APC) system is described. Medicare's new system of payment for hospital outpatient services replaces the cost-based reimbursement model of the past with a technical payment based on the outpatient evaluation and management level. Individual institutions are responsible for developing criteria for defining technical visit levels. Managers at the New England Medical Center formed a team to develop these criteria. The team outlined components of the patient visit that qualified as technical costs, such as the use of space at a facility, medical and surgical supplies, and nonphysician professional services. Team members then contacted each of the center's clinics to identify specific services that met these criteria. After formulating the technical visit level criteria, the team determined who would assign the technical visit level, wrote policies and procedures, and trained staff. The APC team also assessed billing procedures, focusing particularly on the accuracy of the charge master and the use of proper codes and billing units for pass-through drugs. The team continues to monitor its results by reviewing payments received from Medicare and auditing high-risk areas. The APC team used the principles of managing up to maximize Medicare reimbursement for outpatient visits. PMID:11592351

Bowden, K

2001-10-01

355

Medicaid outpatient utilization for waterborne pathogenic illness following Hurricane Floyd.  

PubMed Central

OBJECTIVES: Flooding provides an opportunity for epidemics of waterborne viral, protozoan, or bacterial diseases to develop in affected areas. Epidemic levels of disease may translate into higher than average levels of health services use, depending in part on help-seeking behaviors. The authors investigated whether the flooding that occurred as a result of Hurricane Floyd in September 1999 was associated with an increase in outpatient visits for waterborne diseases among Medicaid enrollees in eastern North Carolina. METHODS: Using a difference-in-differences estimation technique, the authors examined the change in outpatient visits by North Carolina Medicaid enrollees for selected waterborne diseases following the hurricane. The study focused on counties with high concentrations of hog farming that were mildly/moderately or severely affected by the hurricane, using unaffected counties and the year before the hurricane as controls. RESULTS: Small increases in Medicaid-covered outpatient visits were found in severely affected counties for two of the six pathogens selected for analysis, relative to unaffected counties. Larger increases in visits were found for nonspecific intestinal infections in both severely and moderately affected counties following the hurricane, relative to unaffected counties. CONCLUSIONS: The large increase in visits for ill-defined intestinal infection is noteworthy. The relative lack of increase in visits with specific pathogenic diagnoses may be attributable, at least in part, to a number of factors, including incomplete diagnostic information provided by treating clinicians, low treatment-seeking behavior, and use of non-Medicaid-funded emergency services. PMID:15313110

Setzer, Christian; Domino, Marisa Elena

2004-01-01

356

Intensive outpatient comprehensive behavioral intervention for tics: A case series  

PubMed Central

Recent randomized clinical trials have established the efficacy of Comprehensive Behavioral Intervention for Tics (CBIT) in treating children and adults with Tourette syndrome and persistent tic disorders. However, the standard CBIT protocol uses a weekly outpatient treatment format (i.e., 8 sessions over 10 wk), which may be inconvenient or impractical for some patients, particularly patients, who are required to travel long distances in order to receive care. In contrast, an intensive outpatient program may increase accessibility to evidence-based behavioral treatments for Tourette syndrome and other persistent tic disorders by eliminating the necessity of repeated travel. This case series evaluated the use of an intensive outpatient program CBIT (IOP CBIT) for the treatment of 2 preadolescent males (ages 10 and 14 years) with Tourette syndrome. The IOP CBIT treatment protocol included several hours of daily treatment over a 4-d period. Both children evidenced notable reductions in their tics and maintained treatment gains at follow-up. Moreover, both patients and their parents expressed treatment satisfaction with the IOP CBIT format. This case series addresses an important research gap in the behavioral treatment of tic disorders literature. The patients’ treatment outcomes indicate that IOP CBIT is a promising treatment that warrants more systematic investigation. PMID:25325069

Blount, Tabatha H; Lockhart, Ann-Louise T; Garcia, Rocio V; Raj, Jeslina J; Peterson, Alan L

2014-01-01

357

Intoxication by large amounts of barium nitrate overcome by early massive K supplementation and oral administration of magnesium sulphate.  

PubMed

Suicide by ingestion of barium is exceptionally rare. Adverse health effects depend on the solubility of the barium compound. Severe hypokalemia, which generally occurs within 2 hours after ingestion, is the predominating feature of acute barium toxicity, subsequently leading to adverse effects on muscular activity and cardiac automaticity. We report one case of acute poisoning with barium nitrate, a soluble barium compound. A 75-year-old woman was hospitalized after suicidal ingestion of a burrow mole fumigant containing 12.375 g of barium nitrate. About 1 hour post-ingestion, she was only complaining of abdominal pain. The ECG recording demonstrated polymorphic ventricular premature complexes (VPCs). Laboratory data revealed profound hypokalemia (2.1 mmol/L). She made a complete and uneventful recovery after early and massive potassium supplementation combined with oral magnesium sulphate to prevent barium nitrate absorption. PMID:20354061

Payen, Christine; Dellinger, Arnaud; Pulce, Corine; Cirimele, Vincent; Carbonnel, Vincent; Kintz, Pascal; Descotes, Jacques

2011-01-01

358

The Evolving Mixture of Barium Isotopes in Milky Way Halo Stars  

NASA Astrophysics Data System (ADS)

Heavy metals in stars form through one of two types of neutron capture processes: the rapid r-process or slower s-process. The fraction of odd and even barium isotopes in stars can indicate which process predominantly contributed to a star’s heavy metals, since odd barium isotopes predominantly form through the r-process and even barium isotopes through the s-process. The “stellar model” predicts that older stars contain comparable amounts of odd and even barium isotopes, while the “classical model” states that they almost exclusively contain odd isotopes. This study investigated these competing models by analyzing high-resolution spectra of twelve Milky Way stars. These spectra were analyzed for the first time in this study. To quantify r- and s-process enrichment, we measured the odd barium isotope fraction in the stars by fitting models to the stars’ spectra. Generating models involved measuring the stars’ Doppler shift, resolution, and barium abundance. To reduce error margins we optimized resolution and barium abundance measurements by enhancing existing techniques through several rounds of revisions. Our results support the stellar model of heavy metal enrichment, and our proposed optimizations will enable future researchers to obtain a deeper understanding of chemical enrichment in the Universe. This research was supported by the Science Internship Program at the University of California Santa Cruz, Lick Observatory, and the National Science Foundation.

Choudhury, Zareen; Kirby, E. N.; Guhathakurta, P.

2014-01-01

359

Magnetic properties of Ni substituted Y-type barium ferrite  

NASA Astrophysics Data System (ADS)

Y-type barium hexaferrite is attractive material for various applications, such as high frequency antennas and RF devices, because of its interesting magnetic properties. Especially, Ni substituted Y- type hexaferrites have higher magnetic ordering temperature than other Y-type. We have investigated macroscopic and microscopic properties of Y-type barium hexaferrite. Ba2Co2-xNixFe12O22 (x = 0, 0.5, 1.0, 1.5, and 2.0) samples are prepared by solid-state reaction method and studied by X-ray diffraction (XRD), vibrating sample magnetometer, and Mössbauer spectroscopy, as well as a network analyzer for high frequency characteristics. The XRD pattern is analyzed by Rietveld refinement method and confirms the hexagonal structure with R-3m. The hysteresis curve shows ferrimagnetic behavior. Saturation magnetization (Ms) decreases with Ni contents. Ni2+, which preferentially occupies the octahedral site with up-spin sub-lattice, has smaller spin value S of 1 than Co2+ having S = 3/2. The zero-field-cooled (ZFC) measurement of Ba2Co1.5Ni0.5Fe12O22 shows that Curie and spin transition temperatures are found to be 718 K and 209 K, respectively. The Curie temperature TC is increased with Ni contents, while TS is decreased with Ni. The Mössbauer spectra were measured at various temperatures and fitted by using a least-squares method with six sextet of six Lorentzian lines for Fe sites, corresponding to the 3bVI, 6cIV*, 6cVI, 18hVI, 6cIV, and 3aIV sites at below TC. From Mössbauer measurements, we confirmed the spin state of Fe ion to be Fe3+ and obtained the isomer shift (?), magnetic hyperfine field (Hhf), and the occupancy ratio of Fe ions at six sub-lattices. The complex permeability and permittivity are measured between 100 MHz and 4 GHz, suggesting that Y-type barium hexaferrite is promising for antenna applications in UHF band.

Won, Mi Hee; Kim, Chul Sung

2014-05-01

360

Infrared determination of barium, strontium, sodium and potassium sulphates by the pellet technique.  

PubMed

Methods are proposed for the infrared determination of barium, strontium, sodium and potassium sulphates by the pellet technique. The semimicro sample is mixed with 300 mg of potassium bromide, the pellet is formed, and the peak heights are determined at the appropriate peak. Barium and strontium sulphates are measured at 983 and 993 cm(-1), respectively. Sodium and potassium sulphates are both measured at 619 cm(-1). Barium and strontium sulphates can be determined in the presence of each other in ratios from 1:20 to 20:1 from the measurements at 983 and 993 cm(-1). Carbonates or nitrates do not interfere with any of the procedures. PMID:18960911

Chasan, D E; Norwitz, G

1971-05-01

361

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

362

Raman study of barium titanate with oxygen vacancies  

NASA Astrophysics Data System (ADS)

Barium titanate (BaTiO 3) crystal samples with different distribution of oxygen vacancies were prepared through different thermal treatment processes. The influences of oxygen vacancies on the Raman spectra and X-ray photoelectron spectroscopy (XPS) spectra of BaTiO 3 single crystals were studied comparatively. Raman measurements of fast-cooled BaTiO 3, which annealed in vacuum and then cooled in air showed many different spectroscopic results comparing with as-received BaTiO 3 sample. Raman measurements of slow-cooled BaTiO 3, which annealed in vacuum and then cooled in tube furnace exhibited few spectroscopic differences. XPS measurements of as-received BaTiO 3 sample and fast-cooled BaTiO 3 sample confirmed that this discrepancy resulted from the surface phase of oxygen vacancy in BaTiO 3.

Zhang, W. H.; Chen, L.; Tao, Y. T.; Zhang, W. H.; Chen, J.; Zhang, J. X.

2011-12-01

363

Calcium barium niobate ridge waveguide on silicon substrate  

NASA Astrophysics Data System (ADS)

A novel optical ridge waveguide using calcium barium niobate (CBN) with a high electro-optic coefficient on silicon substrate is proposed for the design and realization of the next-generation hybrid modulators with short length and low driving voltage. To overcome the etching difficulty of CBN, the design of a waveguide, including an elevated CBN layer based on etched silicon dioxide, is presented. Fabrication of a thick 2.5-?m CBN layer is performed using pulsed laser deposition. Deposited silicon dioxide on the sides and top of the CBN reduces the waveguide loss as low as 3.44 dB/cm, measured using a cutback method. Good agreement between the mode profiles of the simulation and measurement is obtained.

Mortazy, Ebrahim; Stateikina, Irina; Tehranchi, Amirhossein; Delprat, Sébastien; Chaker, Mohamed; Wu, Ke

2010-07-01

364

Dynamics of the CRRES barium releases in the magnetosphere  

NASA Technical Reports Server (NTRS)

The Combined Release and Radiation Effects Satellite (CRRES) G-2, G-3, and G-4 ionized and neutral barium cloud positions are triangulated from ground-based optical data. From the time history of the ionized cloud motion perpendicular to the magnetic field, the late time coupling of the ionized cloud with the collisionless ambient plasma in the magnetosphere is investigated for each of the releases. The coupling of the ionized clouds with the ambient medium is quantitatively consistent with predictions from theory in that the coupling time increases with increasing distance from the Earth. Quantitative comparison with simple theory for the couping time also yields reasonable agreement. Other effects not predicted by the theory are discussed in the context of the observations.

Fuselier, S. A.; Mende, S. B.; Geller, S. P.; Miller, M.; Hoffman, R. A.; Wygant, J. R.; Pongratz, M.; Meredith, N. P.; Anderson, R. R.

1994-01-01

365

Nonlinear spectroscopy of barium in parallel electric and magnetic fields  

NASA Astrophysics Data System (ADS)

We report on the experimental spectral observations of barium in parallel electric and magnetic fields. The laser pulse is linearly polarized along or perpendicular to the fields, leading to the states m = 0 and the states m = ±1 populated, respectively, by one photon excitation. By sweeping the electric field, we observe the linear and nonlinear splitting of the diamagnetic spectrum as the electric field increases. The spectral anticrossing is induced by the atomic core effect. The Stark spectrum also shows an obvious nonlinear quadratic behavior when the applied magnetic field varies strongly. All spectra are well explained by the full quantum calculation after taking the quantum defect effects of the channel ns up to nf into account.

Yang, Hai-Feng; Gao, Wei; Cheng, Hong; Liu, Hong-Ping

2014-10-01

366

Negative-U extended Hubbard model for doped barium bismuthates  

NASA Astrophysics Data System (ADS)

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 the two, well-separated transport and optical gaps observed in the semiconducting phases of the bismuthates. We fix the parameters in our model by fitting these experimentally observed gaps; and with these parameter values we compute other properties of these systems. We also show how metallic screening and disorder can decrease the superconducting Tc dramatically. Our theory leads to an exotic charge-transport mechanism, dominated by charge +/-2e bosons (cooperons), in the semiconducting phases of these systems.

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

1995-07-01

367

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

368

Studies on immobilization of thorium in barium borosilicate glass  

NASA Astrophysics Data System (ADS)

The barium borosilicate glass (BBS) matrix has shown considerable solubility of ThO 2 at 1000 °C. As seen by X-ray diffractometry (XRD) and Electron probe micro analysis (EPMA) up to 15.86 wt% of ThO 2 could be dissolved in this matrix. The homogeneity of thoria loaded glass was convincingly ascertained by EPMA. Attempts to load more than 16 wt% ThO 2 led to the phase separation of crystalline phases identified as major phase of ThO 2 and minor percentage of ThSiO 4 phase with altogether different morphologies, as seen by XRD. Interestingly, the back scattered images of thorite crystals point towards the presence of chemical zoning. The results being reported in this paper are of interest especially with respect to immobilization of other actinides in borosilicate glass matrix.

Mishra, R. K.; Sengupta, Pranesh; Kaushik, C. P.; Tyagi, A. K.; Kale, G. B.; Raj, Kanwar

2007-02-01

369

A new type of microphone using flexoelectric barium strontium titnate  

NASA Astrophysics Data System (ADS)

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

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

2014-03-01

370

Pulsating aurora induced by upper atmospheric barium releases  

NASA Technical Reports Server (NTRS)

The paper reports the apparent generation of pulsating aurora by explosive releases of barium vapor near 250 km altitude. This effect occurred only when the explosions were in the path of precipitating electrons associated with the visible aurora. Each explosive charge was a standard 1.5 kg thermite mixture of Ba and CuO with an excess of Ba metal which was vaporized and dispersed by the thermite explosion. Traces of Sr, Na, and Li were added to some of the charges, and monitoring was achieved by ground-based spectrophotometric observations. On March 28, 1976, an increase in emission at 5577 A and at 4278 A was observed in association with the first two bursts, these emissions pulsating with roughly a 10 sec period for approximately 60 to 100 sec after the burst.

Deehr, C.; Romick, G.

1977-01-01

371

Communication: Barium ions and helium nanodroplets: Solvation and desolvation  

NASA Astrophysics Data System (ADS)

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

Zhang, Xiaohang; Drabbels, Marcel

2012-08-01

372

BD-21 3873: another yellow-symbiotic barium star.  

NASA Astrophysics Data System (ADS)

An abundance analysis of the yellow symbiotic system BD-21 3873 reveals it to be a metal-poor K-giant ([Fe/H]=-1.3) which is enriched in the heavy s-process elements. In that respect, this star appears to be a twin of AG Dra, another yellow symbiotic system analyzed in a previous paper (Smith et al., 1996A&A...315..179S). The heavy-element abundance distributions of AG Dra and BD-21 3873 are almost identical, and are best reproduced by a s-process with a neutron exposure parameter of 1.2-1.3mb^-1^ and a neutron density logN_n_=8.3 (as derived from the Rb/Zr ratio). These two systems thus link the symbiotic stars to the binary barium and CH stars which are also s-process enriched. These binary systems, which exhibit overabundances of the heavy elements, owe their abundance peculiarities to mass transfer from thermally-pulsing asymptotic giant branch stars, which have since evolved to become white-dwarf companions of the cool stars we now view as the chemically-peculiar primaries. The spectroscopic orbits of BD-21 3873 (derived from CORAVEL measurements) and AG Dra are similar to those of barium and CH stars. With an orbital period of 281.6d, BD-21 3873 is one of the closest systems in these families, and its light curve indeed suggests that variations due to reflection and ellipticity effects are present. The amplitude of the ellipsoidal variations indicates that the giant must be close to filling its Roche lobe. However, no acceptable solution simultaneously satisfies the constraints from the light curve, the orbital elements and the evolutionary tracks in the framework of the standard Roche lobe geometry. We suggest that this discrepancy may be resolved by taking into account the deformation of the Roche lobe caused by the force driving the large mass loss of the giant.

Smith, V. V.; Cunha, K.; Jorissen, A.; Boffin, H. M. J.

1997-08-01

373

SBN60, strontium-barium niobate at 100?K  

PubMed Central

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 SrxBa1 - xNb2O6. Below the Curie temperature, T c, these materials indicate ferroelectric properties. The Curie temperature for SBN60 is equal to 346±0.5?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). PMID:24098159

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

2013-01-01

374

Metabolic syndrome among psychiatric outpatients with mood and anxiety disorders  

PubMed Central

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

2014-01-01

375

Family planning outcomes of male chronically ill psychiatric outpatients.  

PubMed

To assess contraceptive use and child-rearing outcomes, a semistructured interview was given to 92 male psychiatric outpatients and to 92 matched control subjects without major mental illness. Compared with the control subjects, the patients were significantly more likely to have given up children less than 16 years of age for others to raise. Thirty-three percent of the patients who did not want to father children reported that contraception had not been used when they last had heterosexual intercourse. The findings suggest that psychiatrists should identify and reduce male psychiatric patients' risk of fathering unwanted children. PMID:9285985

Coverdale, J H; Turbott, S H

1997-09-01

376

Growth, Characterization and Applications of Beta-Barium Borate and Related Crystals.  

National Technical Information Service (NTIS)

Emphasis of our program during the past year has been on improving the size and quality of beta-barium borate (BBO) crystal, develop the growth recipe for lithium triborate crystal (LBO), characterization of LBO, develop BBO optical parametric oscillators...

C. L. Tang

1991-01-01

377

Barium Titanate Nanoparticles as Exogenous Contrast Agents in Second Harmonic Optical Coherence Tomography  

E-print Network

I propose and demonstrate a method by which barium titanate nanoparticle clusters can be used as exogenous contrast agents in Second Harmonic Optical Coherence Tomography imaging systems to localize and highlight desired regions of tissue. SH...

Pearson, Jeremy T

2013-05-06

378

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

NASA Technical Reports Server (NTRS)

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.

1985-01-01

379

[Organization of an out-patient surgical aid and ways of it's improvement].  

PubMed

The organization of an out-patient surgical aid is analysed. The results of 2363 surgical operations performed in the outpatients clinics in 1990-1992 are analysed. 277 (11.7%) of these operations are usually done in hospital. 348 roentgen-contrast examinations (including iliacography, arteriography, retroe femoral and popliteal phlebography) were performed in the Roentgenological division of clinics for outpatients. PMID:9297028

Mikheev, N M; Miroshnikov, A M; Dudkin, B P; Gradusov, E G; Belan, L A; Buldakov, G P; Epanchintsev, F F; Stovba, S I; Kukes, A I; Trifonov, K V

1997-01-01

380

Types of self-reported anxiety in outpatients with DSM-III-R anxiety disorders  

Microsoft Academic Search

To ascertain whether psychiatric outpatients can be classified into distinct types according to their self-reported symptoms of anxiety, the Beck Anxiety Inventory (BAI) was administered to 655 outpatients diagnosed with DSM-III-R anxiety disorders. Cluster analysis identified three internally consistent subscales representing subjective, somatic, and panic symptoms. Further analysis revealed six types of outpatients reflecting below average, panic-subjective, low subjective, low

Aaron T. Beck; Robert A. Steer; Judith S. Beck

1993-01-01

381

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

NASA Astrophysics Data System (ADS)

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 Ti3+:Al2O3 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.

Konyashchenko, Aleksandr V.; Losev, Leonid L.; Tenyakov, S. Yu

2010-10-01

382

Calculations of energy levels and lifetimes of low-lying states of barium and radium  

Microsoft Academic Search

We use the configuration-interaction method and many-body perturbation theory to perform accurate calculations of energy levels, transition amplitudes, and lifetimes of low-lying states of barium and radium. Calculations for radium are needed for the planning of measurements of parity- and time-invariance-violating effects which are strongly enhanced in this atom. Calculations for barium are used to control the accuracy of the

V. A. Dzuba; J. S. M. Ginges

2006-01-01

383

Calculations of energy levels and lifetimes of low-lying states of barium and radium  

Microsoft Academic Search

We use the configuration interaction method and many-body perturbation theory\\u000ato perform accurate calculations of energy levels, transition amplitudes, and\\u000alifetimes of low-lying states of barium and radium. Calculations for radium are\\u000aneeded for the planning of measurements of parity and time invariance violating\\u000aeffects which are strongly enhanced in this atom. Calculations for barium are\\u000aused to control the

V. A. Dzuba; J. S. M. Ginges

2006-01-01

384

Calculations of energy levels and lifetimes of low-lying states of barium and radium  

E-print Network

We use the configuration interaction method and many-body perturbation theory to perform accurate calculations of energy levels, transition amplitudes, and lifetimes of low-lying states of barium and radium. Calculations for radium are needed for the planning of measurements of parity and time invariance violating effects which are strongly enhanced in this atom. Calculations for barium are used to control the accuracy of the calculations.

Dzuba, V A

2006-01-01

385

VizieR Online Data Catalog: Chemical abundances in barium stars (Boyarchuk+, 2002)  

NASA Astrophysics Data System (ADS)

We used high-resolution spectra to compute model atmospheres to derive the atmospheric abundances of moderate barium stars. Comparing our results with analogous data for normal red giants, we find that the moderate barium stars appear to not differ systematically from normal red giants. Their chemical abundance anomalies show the same patterns and can be interpreted in terms of evolutionary effects: the evolutionary stage, mass, luminosity, and metallicity of the objects. (1 data file).

Boyarchuk, A. A.; Pakhomov, Yu. V.; Antipova, L. I.; Boyarchuk, M. E.

2003-03-01

386

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

387

Preparation and characterization of barium stannate: application as a liquefied petroleum gas sensor†  

Microsoft Academic Search

Barium stannate, BaSnO3, an n-type semiconducting oxide with cubic perovskite structure, has been prepared by the thermal decomposition of barium carbonate (BaCO3) and tin tetrahydroxide (Sn(OH)4). The material was characterized by various physical techniques such as differential thermal analysis (DTA\\/TG), X-ray diffraction (XRD), BET surface area, Fourier transform infra-red (FT-IR) spectroscopy and scanning electron microscopy (SEM). Of its several applications,

C. V. Gopal reddy; S. V. Manorama; V. J. Rao

2001-01-01

388

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 5×1011 atoms per gram show no detectable isotopic anomalies in barium-130 to barium-138. This rules out the possibility that the CCF xenon was formed by in situ fission of an extinct superheavy element. Apparently 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

389

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

390

Removal of carbon dioxide by reactive crystallization in a scrubber—kinetics of barium carbonate crystals  

Microsoft Academic Search

A bubble column scrubber was utilized to remove simulated CO2 waste gas under a constant pH value. Using barium chloride solution as an absorbent reacting with CO2-gas in the scrubber under an alkaline solution condition, precipitates of barium carbonate were formed during the operation. Measured crystal size distributions at a given time were used to calculate the growth rate of

Pao-Chi Chen; K. L. Kou; H. K. Tai; S. L. Jin; C. L. Lye; C. Y. Lin

2002-01-01

391

Attitudes toward suicidal behaviour in outpatient clinics among mental health professionals in Oslo.  

E-print Network

??Abstract Background: To investigate attitudes among professions in mental health care outpatient clinics in Child and Adolescent Psychiatry (CAP) (i.e., children and adolescents) or District… (more)

Norheim, Astrid Berge

2012-01-01

392

Four Physician Communication Styles in Routine Japanese Outpatient Medical Encounters  

PubMed Central

BACKGROUND Few studies have explored how physicians approach medical encounters in Japan. OBJECTIVE This study examined how Japanese physicians conduct routine medical encounters in the context of outpatient care to patients with nonmalignant disorders. DESIGN Qualitative study using semi-structured interviews and direct observation. SETTING The outpatient department of a general hospital located in an urban area of Japan. PARTICIPANTS Physicians and nurses providing care and patients receiving care for nonmalignant disorders. RESULTS A 2-dimensional model was developed, with patient communication (how physician interacted with patients) along 1 axis, and nurse communication (how physicians collaborated with nursing staff) along the other axis. Four physician communication styles (individually adaptive, individually defined, collaboratively adaptive, and collaboratively defined) were identified as typical ways in which the Japanese physicians in the sample interacted with patients and nurses during routine medical encounters. CONCLUSIONS Results suggest the need for a multiprovider-patient model of medical communication among physician, nurse, and patient. Further research is needed to establish the applicability of this model to the communication styles of physicians in other countries. PMID:16970555

Taylor Slingsby, Brian; Yamada, Seiji; Akabayashi, Akira

2006-01-01

393

Toshiba General Hospital PACS for routine in- and outpatient clinics  

NASA Astrophysics Data System (ADS)

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

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

1996-05-01

394

Perceptions of Outpatients Regarding the Attire of Physiotherapists  

PubMed Central

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

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

2008-01-01

395

Comprehension of antibiotic instructions in an outpatient Malaysian practice.  

PubMed

Patients may not comply with antibiotic instructions because they do not understand them. The aim of this study was to assess outpatients' ability to comprehend their antibiotic prescription labels. Two hundred and five subjects on oral antibiotic regimens from an outpatient clinic and pharmacy of a district hospital were selected in this survey. All patients were interviewed by trained clinical pharmacy students. They were asked to read the labels and then how they would take their antibiotics. The results show that 119 (58.1%) patients could interpret the label. Forty-nine (23.9%) patients knew the name of antibiotics and interpreted the directions of use correctly. One hundred sixteen (56.6%) subjects were able to recall the auxiliary information. However, only 44 (21.4%) patients were able to comprehend complete antibiotic instruction. This study demonstrates that a significant proportion of patients could not interpret the labeling instruction. The comprehension level of patients was low and significantly associated (P < 0.05) with the ability of patient to read the label contents. These observations illustrate the need for physicians and pharmacists to provide antibiotic instructions and review these instructions with the patient. PMID:10131493

Hassan, Y; Abd Aziz, N; Sarriff, A; Darwis, Y; Ibrahim, P

1994-01-01

396

Dynamic optimization of chemotherapy outpatient scheduling with uncertainty.  

PubMed

Chemotherapy outpatient scheduling is a complex, dynamic, uncertain problem. Chemotherapy centres are facing increasing demands and they need to increase their efficiency; however there are very few studies looking at using optimization technology on the chemotherapy scheduling problem. We address dynamic uncertainty that arises from requests for appointments that arrive in real time and uncertainty due to last minute scheduling changes. We propose dynamic template scheduling, a novel technique that combines proactive and online optimization and we apply it to the chemotherapy outpatient scheduling problem. We create a proactive template of an expected day in the chemotherapy centre using a deterministic optimization model and a sample of appointments. As requests for appointments arrive, we use the template to schedule them. When a request arrives that does not fit the template, we update the template online using the optimization model and a revised set of appointments. To accommodate last minute additions and cancellations to the schedule, we propose a shuffling algorithm that moves appointment start times within a predefined time limit. We test the use of dynamic template scheduling against the optimal offline solution and the actual performance of the cancer centre. We find improvements in makespan of up to 20 % when using dynamic template scheduling compared to current practice. PMID:24477637

Hahn-Goldberg, Shoshana; Carter, Michael W; Beck, J Christopher; Trudeau, Maureen; Sousa, Philomena; Beattie, Kathy

2014-12-01

397

Effects of tooth scaling reminders for dental outpatients.  

PubMed

We investigated the effect of sending reminders for patients to attend appointments for tooth scaling. A total of 389 outpatients were assigned to three intervention groups (reminders sent by postcard, mobile-phone text message or telephone call) and one control group. Reminders accompanied by short health education messages were sent to patients in each of the intervention groups. The outpatient revisiting behaviour of the patients was monitored. Patients who were reminded to come in for tooth scaling were 2.6 (95% CI 1.3-5.4) to 2.9 (CI 1.1-7.8) times more likely to revisit compared to those who were not reminded. For every one point increase in the patient satisfaction score, patients were 3.8 (CI 1.2-11.6) times more likely to revisit. Patients with a high level of patient satisfaction and who had also received a reminder had the highest return rates (26%). Most patients (89-96%) had good feelings regarding the reminders; 65% of the patients agreed that reminders had enhanced their intention to revisit; 91% of patients hoped to continue to receive reminders concerning broader dental health information. A reminder combined with health education is an effective way of improving preventative dental visiting behaviour. PMID:23512651

Cheng, Chi-Chia J; Li, Chung-Yi; Hu, Yih-Jin; Shen, Hsi-Che; Huang, Shay-Min

2013-06-01

398

X-Rays - Multiple Languages: MedlinePlus  

MedlinePLUS

... ???????) Chinese - Simplified (????) Chinese - Traditional (????) French (français) Hindi (??????) Japanese (???) Korean (???) Russian ( ... PDF Health Information Translations Return to top French (français) Barium Enema Lavement baryté - français (French) Bilingual PDF ...

399

Anal Disorders - Multiple Languages: MedlinePlus  

MedlinePLUS

... JavaScript. Anal Disorders - Multiple Languages Arabic (???????) French (français) Hindi (??????) Japanese (???) Korean (???) Russian ( ... ??? ?????? - ??????? Bilingual Health Information Translations French (français) Barium Enema Lavement baryté - français (French) Bilingual PDF ...

400

Excess Barium as a Paleoproductivity Proxy: A Reevaluation  

NASA Astrophysics Data System (ADS)

Marine barite may serve as a proxy to reconstruct past export production (Dymond, 1992). In most studies sedimentary barite accumulation is not measured directly, instead a parameter termed excess barium (Baexs), also referred to as biogenic barium, is used to estimate the barite content. Baexs is defined as the total Ba concentration in the sediment minus the Ba associated with terrigenous material. Baexs is calculated by normalization to a constant Ba/Al ratio, typically the average shale ratio. This application assumes that (1) all the Ba besides the fraction associated with terrigenous Al is in the form of barite (the phase related to productivity) (2) the Ba/Alshale is constant in space and time (3) all of the Al is associated with terrigenous matter. If these assumptions are invalidated however, this approach lead to significant errors in calculating export production rates. To test the validity of the use of Baexs as a proxy for barite we compared the Baexs in a wide range of core top sediments from different oceanic settings to the barite content in the same cores. We found that Baexs frequently overestimated the Ba fraction associated with barite and in several cases significant Baexs was measured in the cores where no barite was observed. We have also used a sequential leaching protocol (Collier and Edmond 1984) to determine Ba association with organic matter, carbonates, Fe-Mn hydroxides and silicates. While terrigenous Ba remains an important fraction, in our samples 25-95% of non-barite Ba was derived from other fractions, with Fe-Mn oxides contributing the most Ba. In addition we found that the Ba/Al ratio in the silicate fraction of our samples varied considerably from site to site. The above results suggest that at least two of the underlying assumptions for employing Baexs to reconstruct paleoproductivity are not always valid and previously published data from (Murray and Leinen 1993) indicate that the third assumption may also not hold in every oceanic regime. We conclude that using Baexs instead of direct estimates of barite accumulation rates in sediment cores may result in significant errors in estimating past productivity and this proxy should only be used when it is clear that the associated assumptions are valid throughout the cores used. Collier, R. and J. M. Edmond (1984). "The trace elements geochemistry of marine biogenic particulate matter." Progress in Oceanography 13: 113-199. Dymond, J. (1992). "Barium in deep-sea sediment: A geochemical proxy for paleoproductivity." Paleoceanography 7(2): 163-181. Murray, R. W. and M. Leinen (1993). "Chemical transport to the seafloor of the equatorial Pacific Ocean across a latitudinal transect at 135ºW: Tracking sedimentary major, trace, and rare earth element fluxes at the Equator and the Intertropical Convergence Zone." Geochimica et Cosmochimica Acta 57: 4141-4163.

Eagle, M.; Paytan, A.

2001-12-01

401

Supramolecular curcumin-barium prodrugs for formulating with ceramic particles.  

PubMed

A simple and stable curcumin-ceramic combined formulation was developed with an aim to improve curcumin stability and release profile in the presence of reactive ceramic particles for potential dental and orthopedic applications. For that, curcumin was complexed with barium (Ba(2+)) to prepare curcumin-barium (BaCur) complex. Upon removal of the unbound curcumin and Ba(2+) by dialysis, a water-soluble BaCur complex was obtained. The complex was showing [M+1](+) peak at 10,000-20,000 with multiple fractionation peaks of MALDI-TOF-MS studies, showed that the complex was a supramolecular multimer. The (1)H NMR and FTIR studies revealed that, divalent Ba(2+) interacted predominantly through di-phenolic groups of curcumin to form an end-to-end complex resulted in supramolecular multimer. The overall crystallinity of the BaCur was lower than curcumin as per XRD analysis. The complexation of Ba(2+) to curcumin did not degrade curcumin as per HPLC studies. The fluorescence spectrum was blue shifted upon Ba(2+) complexation with curcumin. Monodisperse nanoparticles with size less than 200dnm was formed, out of the supramolecular complex upon dialysis, as per DLS, and upon loading into pluronic micelles the size was remaining in similar order of magnitude as per DLS and AFM studies. Stability of the curcumin was improved greater than 50% after complexation with Ba(2+) as per UV/Vis spectroscopy. Loading of the supramloecular nanoparticles into pluronic micelles had further improved the stability of curcumin to approx. 70% in water. These BaCur supramolecule nanoparticles can be considered as a new class of prodrugs with improved solubility and stability. Subsequently, ceramic nanoparticles with varying chemical composition were prepared for changing the material surface reactivity in terms of the increase in, degradability, surface pH and protein adsorption. Further, these ceramic particles were combined with curcumin prodrug formulations and optimized the curcumin release properties in the combined formulations. Our proof concept study shows that, the conversion of curcumin to a metal-organic supramolecular prodrug improved the solubility, stability and release profile of curcumin. The prodrug approach with the micellisation strategy appears to be more appropriate to deliver intact curcumin in the presence of ceramic particles of varying surface reactivity. PMID:25064480

Kamalasanan, Kaladhar; Anupriya; Deepa, M K; Sharma, Chandra P

2014-10-01

402

Predicting Suicide Risks among Outpatient Adolescents Using the Family Environment Scale: Implications for Practice and Research  

ERIC Educational Resources Information Center

This study was designed to identify characteristics of family functioning that relate to suicide potential in an outpatient adolescent population. Participants included 51 adolescents between the ages of 14 and 18 who were involved in outpatient counselling. The Family Environment Scale and the Suicide Probability Scale were used to assess…

Lucey, Christopher F.; Lam, Sarah K. Y.

2012-01-01

403

The Effects of Capitation on Outpatient Mental Health Episodes of Children  

ERIC Educational Resources Information Center

We analyzed the effects of the Colorado Medicaid Capitation Program on the duration and services of over 21,000 outpatient mental health episodes for young children. The study spanned a three year period before and after capitation was implemented, and compared episodes of outpatient care for children from 14 capitated Community Mental Health…

Cohen, Edward; Snowden, Lonnie; Libby, Anne; Ma, Yifei

2006-01-01

404

The Effects of Capitation on Outpatient Mental Health Episodes of Children  

Microsoft Academic Search

We analyzed the effects of the Colorado Medicaid Capitation Program on the duration and services of over 21,000 outpatient mental health episodes for young children. The study spanned a three year period before and after capitation was implemented, and compared episodes of outpatient care for children from 14 capitated Community Mental Health Centers (CMHCs) with those from three CMHCs that

Edward Cohen; Lonnie Snowden; Anne Libby; Yifei Ma

2006-01-01

405

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

Microsoft Academic Search

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

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

1996-01-01

406

The Treatment Motivation Scales for Forensic Outpatient Treatment (TMS-F): Construction and Psychometric Evaluation  

ERIC Educational Resources Information Center

The Treatment Motivation Scales for forensic outpatient treatment (TMS-F) is a Dutch 85-item self-report questionnaire for the motivation of forensic outpatients to engage in their treatment and six cognitive and affective determinants of this motivation. Following descriptions of the conceptual basis and construction, the psychometric properties…

Drieschner, Klaus H.; Boomsma, Anne

2008-01-01

407

Differentiating Elderly Medical and Psychiatric Outpatients with the Beck Anxiety Inventory.  

ERIC Educational Resources Information Center

To determine whether self-reported anxious symptoms differentiated elderly medical and psychiatric outpatients, the Beck Anxiety Inventory was administered to 45 medical outpatients and 117 psychiatric inpatients. Only two symptoms, fear of the worst happening and unsteady, contributed unique variance to the differentiation of the two groups. (SLD)

Steer, Robert A.; And Others

1994-01-01

408

Time is Money: Premiums, Coverage, and Outpatient Waiting Times for Elderly Veterans in the United States  

Microsoft Academic Search

The time spent waiting for an outpatient appointment limits demand in health care delivery systems that do not use financial prices for this purpose. Although outpatient waiting times have been relatively low in the United States, there is reason to believe they may increase in the near future. We estimate models of physician utilization and insurance plan choice for American

Steven D. Pizer; Julia C. Prentice

409

The costs and benefits of outpatient surveillance of congenital heart disease after repair  

Microsoft Academic Search

Regular outpatient re-evaluation in hopes of recognizing treatable post-operative problems is common practice after repair of congenital heart disease. The purpose of this investigation is to audit resource utilization in the care of outpatients after repair of congenital heart disease and to determine what relationship, if any, this utilization may have to active medical management. A chart review of a

David A. Danford; Philip J. Hofschire; Jennifer S. Kiesel

1995-01-01

410

Medication Errors Among Adults and Children With Cancer in the Outpatient Setting  

Microsoft Academic Search

Purpose Outpatients with cancer receive complicated medication regimens in the clinic and home. Medication errors in this setting are not well described. We aimed to determine rates and types of medication errors and systems factors associated with error in outpatients with cancer. Methods We retrospectively reviewed records from visits to three adult and one pediatric oncology clinic in the Southeast,

Kathleen E. Walsh; Katherine S. Dodd; Kala Seetharaman; Douglas W. Roblin; Lisa J. Herrinton; Ann Von Worley; G. Naheed Usmani; David Baer; Jerry H. Gurwitz

2010-01-01

411

76 FR 11338 - Hospital and Outpatient Care for Veterans Released From Incarceration to Transitional Housing  

Federal Register 2010, 2011, 2012, 2013

...RIN 2900-AN41 Hospital and Outpatient Care for Veterans Released From Incarceration...authorize VA to provide hospital and outpatient care to a veteran in a program that provides...h), VA is not required ``to furnish care to a veteran to whom another agency...

2011-03-02

412

Management of the symptomatic placenta previa: A randomized, controlled trial of inpatient versus outpatient expectant management  

Microsoft Academic Search

OBJECTIVE: Our purpose was to determine the safety, efficacy, and costs of inpatient and outpatient management of symptomatic placenta previa. STUDY DESIGN: Fifty-three women with the initial diagnosis of placenta previa at 24 to 36 weeks' gestation who required hospitalization for vaginal bleeding were stabilized and then randomized to receive either inpatient or outpatient expectant management. Twenty-seven inpatients were placed

Deborah A. Wing; Richard H. Paul; Lynnae K. Millar

1996-01-01

413

Comorbidity of generalized anxiety disorder and alcohol use disorders among individuals seeking outpatient substance abuse treatment  

Microsoft Academic Search

The present study sought to address a gap in the literature by providing preliminary evidence of the prevalence and clinical characteristics of comorbid generalized anxiety disorder (GAD) and alcohol use disorders (AUD) in a front-line outpatient substance abuse clinic. Of 39 outpatients meeting criteria for an AUD, nearly half (46%) also met criteria for current GAD. The onset of GAD

Joshua P. Smith

2010-01-01

414

[The typical pathway of a patient in short route outpatient surgery].  

PubMed

The short route is an outpatient surgical unit characterised by immediate proximity to the operating theatre. It is an organisational and architectural concept in which the patient management aims to be personalised and safe. After the procedure, patients are monitored for as long as necessary, as with traditional outpatient surgery, before being discharged. PMID:25065190

Chabanais, Stéphane; Debris, Annie; Paulhia, Guylaine; Pignoux, Agnès; Godarc, Marylène

2014-01-01

415

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

416

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

417

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

418

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

419

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

NASA Astrophysics Data System (ADS)

X-ray diffraction studies at the Advanced Photon Source reveal that nanoscale inhomogeneities, electronic or structural in origin, form in yttrium-barium-copper-oxide (YBa_2Cu_3O_6+x) superconductors and coexist with the superconducting (SC) state. Diffuse scattering from these inhomogeneous superstructures is due to atomic displacements with respect to equilibrium lattice sites (Z. Islam et al. Phys. Rev. B 66, 92501 (2002)), that are characterized by a wavevector of the form q=(q_x,0,0), where qx varies with hole doping from 2 unit cells (along shorter Cu-O-Cu direction) for very low doping to 4 unit cells at optimal doping. Interestingly, while these superstructures are 3-dimensionally ordered when the SC state is weakened (e.g., at x=0.4), as the doping increases, they become quasi 1D with correlation lengths comparable to SC coherence lengths in these cuprates. Recent first-principles calculations (D. de Fontaine et al., to be published) for the x=0.63 compound show that atomic displacements consistent with experimental data can be the result of ordering of O vacancies in YBCO. Models for various superstructures and their role in the phase diagram will be discussed.

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

2004-03-01

420

Discovery of s-process barium in the Murchison meteorite  

NASA Astrophysics Data System (ADS)

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

Ott, U.; Begemann, F.

1990-04-01

421

Barium inhibition of basolateral membrane potassium conductance in tracheal epithelium.  

PubMed

Addition of barium ion, Ba2+, to the submucosal bathing solution of canine tracheal epithelium reversibly decreased the short-circuit current and increased transepithelial resistance. The decrease in short-circuit current represented a decrease in the net rate of Cl secretion with no change in the rate of Na absorption. Intracellular microelectrode techniques and an equivalent electrical circuit analysis were used to localize the effect of Ba2+ to an inhibition of the permeability of the basolateral membrane to K. Ba2+ (2 mM) doubled basolateral membrane resistance, decreased the equivalent electromotive force at the basolateral membrane, and decreased the magnitude of the depolarization of basolateral membrane voltage produced by increasing the submucosal K concentration. The inhibition of the basolateral K permeability depolarized the negative intracellular voltage, resulting in both a decrease in the driving force for Cl exit and an estimated increase in intracellular Cl concentration. These studies indicate that there is a Ba2+-inhibitable K conductance at the basolateral membrane of tracheal epithelial cells and that the K permeability plays an important role in the generation of the negative intracellular electrical potential that provides the driving force for Cl exit from the cell. PMID:6859255

Welsh, M J

1983-06-01

422

Experiments with remote entanglement using single barium ions  

NASA Astrophysics Data System (ADS)

Barium ion qubits are trapped and Doppler cooled in a linear Paul trap and the tasks of state initialization, single-qubit operations and detection are demonstrated. Coherent qubit excitation us accomplished on the 6S 1/2 ? 6P3/2 and the 6S1/2 ? 6P 1/2 transitions are single pulses from a mode-locked Ti:Sapphire laser, with the eventual goal of entangling the polarization mode of emitted photons with the spin state of the ion. Single photon generation and detection ability is demonstrated. A stabilized 1.762 mum laser is used on the 6S1/2 ? 5D5/2 transition to demonstrate the ability to state selectively shelve the ion from the ground state to be used as readout. Using the techniques that enable qubit operations and readout, several quantities of interest in 138Ba+ are measured either for the first time or to higher accuracy than previously achieved.

Kurz, Nathan

423

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

424

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

425

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

426

Extended analysis of three times ionized barium (Ba IV)  

NASA Astrophysics Data System (ADS)

The fourth spectrum of barium (Ba IV) has been investigated with the aid of experimental recordings made on a 3-m normal incidence vacuum spectrograph at Antigonish laboratory (Canada) in the wavelength region 300-2080 Å using a triggered spark as an excitation source. The spectral analysis has been extended to include a new odd-parity configuration 5s25p46p. Previously reported levels of the ground configuration and the three lowest excited configurations (5s5p6, 5s25p45d and 5s25p46s) have been confirmed. All the J?7/2 unknown levels of the 5s25p45d configuration and the (3P) 4P5/2 level of the 5s25p46s configuration have now been established through the identification of transitions from the levels of the 5s25p46p configuration, all of which have now been established. A configuration interaction Hartree-Fock calculation supports the analysis.

Sharma, Manoj Kumar; Rahimullah, K.; Tauheed, A.

2014-11-01

427

Engagement and retention in outpatient alcoholism treatment for women.  

PubMed

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

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

2009-01-01

428

Clinical documentation improvement for outpatients by implementing electronic medical records.  

PubMed

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

Seto, Ryoma; Inoue, Toshitaka; Tsumura, Hiroshi

2014-01-01

429

A cooperative model for integration in a cardiology outpatient clinic.  

PubMed Central

With the increasing amount of digitally stored patient information, such as images and findings, the possibility and need arise for a system which is able to both store and display this information in a structured, user-friendly way. In the common situation where different information systems are used within one department, this means that the various information systems have to be integrated. However, integration requires more complex management of data, processes and windows. This management can be handled by a Workspace Manager, which controls inter-application tasks, and interaction with the user. Furthermore, this Workspace Manager supports the user with the definition of complex tasks such as collecting problem-related patient information from the various remote systems. In an outpatient clinic for cardiology this architecture is used to achieve cooperative integration of an open Computer Patient Record with a range of information-specific services. Images Figure 4 PMID:7949997

Cornet, R.; van Mulligen, E. M.; Timmers, T.

1994-01-01

430

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

PubMed

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

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

2012-12-01

431

Correlates of suicidal behaviors among Asian American outpatient youths.  

PubMed

Medical record abstraction was conducted at an ethnic-specific mental health outpatient clinic to identify correlates of suicidal behaviors in a sample of 285 Asian American youths. Some risk factors, such as parent-child conflict and age, which have been associated with suicidality in majority group youths, predicted suicidality in this sample, whereas other risk factors, such as gender, did not generalize to this sample. Acculturation interacted with the risk factor of parent-child conflict to predict suicidality. Less acculturated Asian youths were at proportionally greater risk for suicidality under conditions of high parent-child conflict than were their more acculturated counterparts. This finding underscores the importance of culture as a context for determining the relevance of stressors for potentiating psychopathology. PMID:12143098

Lau, Anna S; Jernewall, Nadine M; Zane, Nolan; Myers, Hector F

2002-08-01

432

Outpatient pre-operative assessment in joint replacement surgery.  

PubMed

An anaesthetist-led outpatient pre-operative assessment (OPA) clinic was introduced in our unit in an effort to improve patient care and cost-effectiveness. To assess the efficiency of the clinic, 112 patients who attended the OPA clinic (attendance rate 98%) during the first year were assessed prospectively and compared with 118 patients who did not undergo OPA the year before. There were fewer cancellations among those who attended the OPA clinic (13.6% compared to 3.6%), and the hospital stay was shortened from an average of 10.7 days to 7.0 days. This has resulted in more efficient utilization of operating theatre, reduced hospital costs and improved patient satisfaction. More extensive use of the pre-admission clinic is recommended and should be explored in other clinical settings. PMID:18942292

Chan, C Y W; Nam, H Y; Raveenthiran, R; Choon, S K; Tai, C C

2008-06-01

433

Preprint: Final version published as: FLEET, L. & BLANDFORD, A. (2005) Requirements of Time Management Tools for Outpatient Physiotherapy Practice. Health Informatics  

E-print Network

Management Tools for Outpatient Physiotherapy Practice. Health Informatics Journal. 11: 179 - 199. Requirements of Time Management Tools for Outpatient Physiotherapy Practice Leanne Fleet MSc & Ann E. Blandford Management Tools for Outpatient Physiotherapy Practice Abstract The effects of electronic appointment booking

Blandford, Ann

434

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

Code of Federal Regulations, 2013 CFR

...2013-10-01 2013-10-01 false Hospital services excluded from payment under the hospital outpatient prospective payment system...CONTINUED) PROSPECTIVE PAYMENT SYSTEM FOR HOSPITAL OUTPATIENT DEPARTMENT SERVICES...

2013-10-01

435

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

Federal Register 2010, 2011, 2012, 2013

...Year 2010 Cost of Outpatient Medical, Dental, and Cosmetic Surgery Services Furnished by Department of Defense Medical...persons for the cost of outpatient medical, dental and cosmetic surgery services furnished by military treatment...

2011-03-21

436

38 CFR 17.82 - Contracts for outpatient services for veterans with alcohol or drug dependence or abuse...  

...for outpatient services for veterans with alcohol or drug dependence or abuse disabilities...for outpatient services for veterans with alcohol or drug dependence or abuse disabilities...requirements of the “Confidentiality of Alcohol and Drug Abuse Patient Records” (42...

2014-07-01

437

Chromospherically active stars. 6: Giants with compact hot companions and the barium star scenario  

NASA Technical Reports Server (NTRS)

We have determined spectroscopic orbits for three chromospherically active giants that have hot compact companions. They are HD 160538 (K0 III + wd, P = 904 days), HD 165141 (G8 III + wd, P approximately 5200 days), and HD 185510 (K0 III + sdB, P = 20.6619 days). By fitting an IUE spectrum with theoretical models, we find the white dwarf companion of HD 165141 has a temperature of about 35000 K. Spectral types and rotational velocities have been determined for the three giants and distances have been estimated. These three systems and 39 Ceti are compared with the barium star mass-transfer scenario. The long-period mild barium giant HD 165141 as well as HD 185510 and 39 Ceti, which have relatively short periods and normal abundance giants, appear to be consistent with this scenario. The last binary, HD 160538, a system with apparently near solar abundances, a white dwarf companion, and orbital characteristics similar to many barium stars, demonstrates that the existence of a white-dwarf companion is insufficient to produce a barium star. The paucity of systems with confirmed white-dwarf companions makes abundance analyses of HD 160538 and HD 165141 of great value in examining the role of metallicity in barium star formation.

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

1993-01-01

438

The physical and psycho-social experiences of patients attending an outpatient medical oncology department: a cross-sectional study  

Microsoft Academic Search

The aim of this study was to assess the prevalence and predictors of physical symptoms, anxiety, depression and perceived needs among patients receiving treatment at an outpatient medical oncology department using a cross-sectional survey. It was carried out at the outpatient clinic of an academic medical oncology department, which sees around 150–180 outpatients each week; 201 patients were selected. These

Sallie Newell; Rob William Sanson-Fisher; Afaf Girgis; Stephen Ackland

1999-01-01

439

An Association between Air Pollution and Daily Outpatient Visits for Respiratory Disease in a Heavy Industry Area  

PubMed Central

In this work we used daily outpatient data from the Landseed Hospital in a heavily industrial area in northern Taiwan to study the associations between daily outpatient visits and air pollution in the context of a heavily polluted atmospheric environment in Chung-Li area during the period 2007–2011. We test the normality of each data set, control for the confounding factors, and calculate correlation coefficient between the outpatient visits and air pollution and meteorology, and use multiple linear regression analysis to seek significance of these associations. Our results show that temperature and relative humidity tend to be negatively associated with respiratory diseases. NO and are two main air pollutants that are positively associated with respiratory diseases, followed by , , , CO, and . Young outpatients (age 0–15 years) are most sensitive to changing air pollution and meteorology factors, followed by the eldest (age 66 years) and age 16–65 years of outpatients. Outpatients for COPD diseases are most sensitive to air pollution and meteorology factors, followed by allergic rhinitis, asthma, and pneumonia diseases. In the context of sex difference to air pollution and meteorological factors, male outpatients are more sensitive than female outpatients in the 16–65 age groups, while female outpatients are more sensitive than male outpatients in the young 0–15 age groups and in the eldest age groups. In total, female outpatients are more sensitive to air pollution and meteorological factors than male outpatients. PMID:24204573

Wang, Kuo-Ying; Chau, Tang-Tat

2013-01-01

440

Effect of Silver Coating on Barium Titanium Oxide Nanoparticle Toxicity  

PubMed Central

Nanoparticles are presently being studied for optical and biomedical applications such as medical imaging and drug delivery. Nanoparticles impact the cellular environment due to many variables such as size, shape, and composition. How these factors affect cell viability is not fully understood. The purpose of this study is to test the toxicity effects of silver coating (Ag@) Barium Titanium Oxide (BaTiO3) nanoparticles on Rhesus Monkey Retinal Endothelial cells (RhREC’s) in culture. The addition of silver to the nanoparticles increases their nonlinear optical properties significantly, making the Ag@BaTiO3 nanoparticles good candidates for nonlinear microscopy contrast agents. We hypothesize that by silver coating nanoparticles, there will be an increase in cell viability at higher concentrations when compared to non-silver coated nanoparticles. RhREC’s were treated with BaTiO3 and Ag@BaTiO3 at concentrations of 0, 1.0, 10.0, and 100µg/ml for 24 hours at 37°C + 5%CO2. After 24 hour incubation with respective nanoparticles, cell viability was determined using the trypan blue dye-exclusion method. Treatment with 0, 1.0 and 10.0µg/ml of Ag@BaTiO3 had minimal effect on cell viability, with 90% viable cells remaining at the end of the 24 hours treatment period. However, cells treated with 100µg/ml of Ag@BaTiO3 resulted in a decrease to 51% viable cells. Comparatively, cells treated with 0, 1.0 and 10µg/ml of BaTiO3 had no significant effect on cell viability (90% viable cells after treatment) while the 100µg/ml treatment resulted in a decrease to 29% viable cells. These results show that silver coating of BaTiO3 nanoparticles has a protective effect on cellular toxicity at high concentrations. PMID:25125928

Obregon, Isidro D.; Betts-Obregon, Brandi S.; Yust, Brian; Pedraza, Francisco; Ortiz, Alexandra; Sardar, Dhiraj; Tsin, Andrew T.

2014-01-01

441

TWO BARIUM STARS IN THE OPEN CLUSTER NGC 5822  

SciTech Connect

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{sub Sun} and 76 L{sub Sun }, 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.

Katime Santrich, O. J.; Pereira, C. B.; De Castro, D. B., E-mail: osantrich@on.br, E-mail: claudio@on.br, E-mail: denise@on.br [Observatorio Nacional/MCT, Rua Gen. Jose Cristino, 77, 20921-400 Rio de Janeiro (Brazil)

2013-08-01

442

Electrical properties of niobium doped barium bismuth-titanate ceramics  

SciTech Connect

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

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

2012-08-15

443

In-situ formation of barium ferrite in iron doped "tetragonal tungsten bronze": Elaboration of room temperature multiferroic composites  

E-print Network

1 In-situ formation of barium ferrite in iron doped "tetragonal tungsten bronze": Elaboration Ba2LnFeNb4O15 (Ln = rare earth) with the "tetragonal tungsten bronze" (TTB) structure have correlated their room temperature multiferroics properties to the occurrence of barium ferrite parasitic phases

Paris-Sud XI, Université de

444

Effects of liquid paraffin in the diet or infused via colonic enema on fecal elimination of /sup 14/C-hexachlorobenzene from body burdens in rats  

SciTech Connect

Twenty-one male rats were dosed once intraperitoneally with 32.2 mg /sup 14/C-hexachlorobenzene in corn oil (/sup 14/C-HCB activity 11.67 ..mu..Ci/rat). After 4 d, six rats were randomly selected, bled and hemi-castrated with sampling of epididymal adipose tissue to establish /sup 14/C-HCB body burdens. Thereafter, all rats were allocated randomly into three groups, each with five intact and two hemi-castrated rats. One group (controls) received only a basal diet; another received the basal diet amended with 5% light mineral oil (MO); and the third received the basal diet and 1 ml of MO once daily via enema in the upper colon. Treatments were continued throughout 27 d. Excretion of /sup 14/C-HCB and(or) metabolites into feces and urine was measured daily for each rat for 31 d after /sup 14/C-HCB dosage. Fecal excretion of /sup 14/C-HCB and(or) metabolites was increased 2.5-fold by dietary MO and 1.7-fold by MO in the colon. When adjusted to equal dosage, MO by colon was 93% as effective as MO by diet. Urinary /sup 14/C-HCB excretion was not affected by MO, except indirectly through lowered body burden. Addition of hexadecane (25 ..mu..l per 100 mg adipose tissue) into the incubation mixture enhanced (P < 0.05) distribution of /sup 14/C-HCB into the liquid fraction for rats not previously fed hexadecane, but had no effect on incubation mixtures from rats fed hexadecane. Results confirm that liquid paraffins enhance elimination of /sup 14/C-HCB from body burdens into feces and suggest that distribution into blood cells and plasma may partially explain the effect.

Robles-Porras, H.

1985-01-01

445

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

446

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

E-print Network

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

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

2014-01-01

447

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

E-print Network

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

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

2014-10-09

448

Solvothermal synthesis and characterization of two inorganic-organic hybrid materials based on barium.  

PubMed

Two metal-organic frameworks containing barium were synthesized hydrothermally and investigated for their catalytic properties. Ba(2)F(2)[O(3)SC(2)H(4)SO(3)] has barium fluoride layers linked by organic 1,2-ethanedisulfonate molecules. Ba[O(3)SC(2)H(4)SO(3)] has discrete barium centers arranged in layers and connected covalently by ethanedisulfonate bridges. Thermogravimetric analysis showed that Ba(2)F(2)[O(3)SC(2)H(4)SO(3)] is stable to ca. 325 °C and Ba[O(3)SC(2)H(4)SO(3)] to ca. 375 °C. These materials expand the metal-organic frameworks available for group II metals bound to organodisulfonate linkers and are potentially useful for a range of heterogeneous acid catalysis reactions. PMID:22968326

Abdollahian, Yashar; Hauser, Jesse L; Rogow, David L; Oliver, Allen G; Oliver, Scott R J

2012-10-28

449

Phase transition studies in barium and strontium titanates at microwave frequencies  

NASA Technical Reports Server (NTRS)

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

Dahiya, Jai N.

1993-01-01

450

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

PubMed

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

Lee, Hunhyeong; Park, Inyu; Shin, Dongwook

2013-09-01

451

Plasma irregularities caused by cycloid bunching of the CRRES G-2 barium release  

NASA Technical Reports Server (NTRS)

The Combined Release and Radiation Effects Satellite (CRRES) spacecraft carried a number of barium thermite canisters for release into the upper atmosphere. The barium release labeled G-2 showed evidence of curved irregularities not aligned with the ambient magnetic field B. The newly discovered curved structures can be explained by a process called cycloid bunching. Cycloid bunching occurs when plasma is created by photoionization of a neutral cloud injected at high velocity perpendicular to B. If the injection velocity is much larger than the expansion speed of the cloud, the ion trail will form a cycloid that has irregularities spaced by the product of the perpendicular injection speed and the ion gyroperiod, Images of the solar-illuminated barium ions are compared with the results of a three-dimensional kinetic simulation. Cycloid bunching is shown to be responsible for the rapid generation of both curved and field-aligned irregularities in the CRRES G-2 experiment.

Bernhardt, P. A.; Huba, J. D.; Pongratz, M. B.; Simons, D. J.; Wolcott, J. H.

1993-01-01

452

Effects of Potassium Ion Substitution on Lattice Parameters and Proton Migration in Barium Phosphate  

NASA Astrophysics Data System (ADS)

The effects of substituting a potassium ion for a barium ion in barium phosphate on lattice parameters and proton migration were investigated using density functional theory. A proton inserted into the material preferred to be attached to an oxygen ion near the potassium ion to compensate for the positive charge of the potassium ion that is less than that of the barium ion. Lattice parameters were investigated as a function of the potassium ion concentration. The lattice parameter a increased linearly with the potassium ion concentration, while the lattice parameter c remained almost constant. These trends were in good agreement with the experimental results. When the proton migrated from the ab-plane containing the potassium ion to the plane free of the potassium ion, a high energy barrier of 0.58 eV was required for proton migration. This value was also in good agreement with the experimentally measured energy barriers (0.53-0.58 eV).

Jeong, Yong-Chan; Kim, Byung-Kook; Kim, Yeong-Cheol

2013-11-01

453

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

NASA Technical Reports Server (NTRS)

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

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

1975-01-01

454

18 J La State Med Soc VOL 157 January/February 2005 Journal of the Louisiana State Medical Society  

E-print Network

, and hemorrhoids. A barium swallow with small bowel follow-through and a barium-enema study dem- onstrated hemorrhoids. A history of anemia ascribed to heavy bleeding from menses and osteopenia with mul- tiple wrist

455

Final response to BDAT related comments document: D005: Characteristic wastes for barium, and P013 and D006: Characteristic wastes for cadmium. Volume 1-F  

Microsoft Academic Search

The contents of this article include the following: characteristic wastes for barium and p013 (data submission, treatment standards, preamble vs. proposed rule, mclg standard, treatability group for barium wastes containing organics, and drinking water levels of barium); and characteristic wastes for cadmium (problems in management of household battery wastes, cadmium wastes not similar to f006 or k061, set standards for

L. Rosengrant; R. Craig

1990-01-01

456

A Comparison of Inpatient Versus Outpatient Resistance Patterns of Pediatric Urinary Tract Infection  

PubMed Central

Purpose Prior single center studies showed that antibiotic resistance patterns differ between outpatients and inpatients. We compared antibiotic resistance patterns for urinary tract infection between outpatients and inpatients on a national level. Materials and Methods We examined outpatient and inpatient urinary isolates from children younger than 18 years using The Surveillance Network (Eurofins Scientific, Luxembourg, Luxembourg), a database of antibiotic susceptibility results, as well as patient demographic data from 195 American hospitals. We determined the prevalence and antibiotic resistance patterns of the 6 most common uropathogens, including Escherichia coli, Proteus mirabilis, Klebsiella, Enterobacter, Pseudomonas aeruginosa and Enterococcus. We compared differences in uropathogen prevalence and resistance patterns for outpatient and inpatient isolates using chi-square analysis. Results We identified 25,418 outpatient (86% female) and 5,560 inpatient (63% female) urinary isolates. Escherichia coli was the most common uropathogen overall but its prevalence varied by gender and visit setting, that is 79% of uropathogens overall for outpatient isolates, including 83% of females and 50% of males, compared to 54% for overall inpatient isolates, including 64% of females and 37% of males (p <0.001). Uropathogen resistance to many antibiotics was lower in the outpatient vs inpatient setting, including trimethoprim/sulfamethoxazole 24% vs 30% and cephalothin 16% vs 22% for E. coli (each p <0.001), cephalothin 7% vs 14% for Klebsiella (p = 0.03), ceftriaxone 12% vs 24% and ceftazidime 15% vs 33% for Enterobacter (each p <0.001), and ampicillin 3% vs 13% and ciprofloxacin 5% vs 12% for Enterococcus (each p <0.001). Conclusions Uropathogen resistance rates of several antibiotics are higher for urinary specimens obtained from inpatients vs outpatients. Separate outpatient vs inpatient based antibiograms can aid in empirical prescribing for pediatric urinary tract infections. PMID:24679887

Saperston, Kara N.; Shapiro, Daniel J.; Hersh, Adam L.; Copp, Hillary L.

2014-01-01

457

The Effectiveness of Antidepressant Monotherapy in a Naturalistic Outpatient Setting  

PubMed Central

Objective: To assess a representative sample of clinically depressed outpatients during acute treatment with antidepressant medication monotherapy to determine clinical outcomes and evaluate relationships between outcomes and selected baseline/treatment features. Method: This naturalistic study examined data on outpatients at the Department of Psychiatry, Duke University Medical Center, Durham, North Carolina, from January 2000 through December 2010. Eligible patients (N = 1,722) had a diagnosis of clinical depression (major depressive disorder, dysthymic disorder, or depressive disorder not otherwise specified as defined in DSM-IV-TR). Sociodemographic/clinical data were gathered at study entry (date of first treatment). The Clinical Global Impressions–improvement (CGI-I) and –severity of illness (CGI-S) scales were administered at entry and at study exit (end of follow-up) after 1 to 9 weeks of treatment. Analysis of variance, F tests, and t tests determined relationships between outcomes and treatment duration, baseline severity, and sociodemographic/clinical features. Results: Thirty-nine percent of participants reported substantial improvement (CGI-I score = 1 or 2) from entry to exit, 33% reported minimal improvement (CGI-I score = 3), 22% reported no change, and approximately 7% reported worsened illness. Greater improvement (CGI-I score) and greater reduction in depressive severity (CGI-S score) were associated with greater baseline depressive severity and longer treatment duration (all P < .001). Participants with greater baseline depressive severity experienced larger reductions in depressive severity but reported worse CGI-I scores at exit. Less improvement in CGI-I scores was seen in women compared to men (P = .018). Less improvement in CGI-I scores and less reduction in CGI-S scores were seen in participants ? 60 years of age (P = .040 and P = .025, respectively) and those with comorbid substance abuse (P < .001 and P = .010, respectively) or anxiety (P = .018 and P < .001, respectively) disorders. Conclusions: Most depressive symptom improvement occurred within the first 4 to 6 weeks of antidepressant monotherapy. Greater baseline severity, comorbid substance abuse, and comorbid anxiety disorders are associated with worse outcomes. PMID:23469327

Nkouibert Assam, Pryseley; Gersing, Kenneth R.; Chan, Edwin; Burchett, Bruce M.; Sim, Kang; Feng, Lei; Krishnan, K. Ranga; Rush, A. John

2012-01-01

458

Outpatient quality improvement in academic faculty practice plans: does it exist?  

PubMed

The purpose of this study was to (a) investigate the extent to which academic faculty practice plans (FPPs) are currently involved in ambulatory care quality improvement (QI), (b) describe the structure of QI initiatives at outpatient FPPs, and (c) delineate facilitators and barriers to development of FPP outpatient QI initiatives. Members of the Steering Committee of the Group Practice Council of the University HealthSystem Consortium (UHC), representing the leadership of 88 FPPs, were asked to respond to a 38-item Web-based questionnaire during February and March 2003. The survey elicited information on the organizational characteristics of FPPs, their current degree of engagement in outpatient QI activities, and factors driving interest and barriers impeding efforts to conduct outpatient QI initiatives. Descriptive statistics for all variables of interest were performed. Responses were received from 33 participants believed to represent at least 28 of the total 88 FPP members of the UHC. Nearly all respondents indicated that some types of outpatient QI initiatives were currently taking place in their FPP. However, only 12% of respondents met 4 or more of the 6 criteria deemed to be essential to having a robust outpatient QI program. Among key QI indicators, one third of respondents reported that their FPP had a separate and distinct outpatient quality committee, and some one fifth had a budget for outpatient QI or financial incentives for outpatient clinics to engage in QI (or both). The majority of respondents stated that at least some departments in their FPP were collecting quality data. Most respondents reported that patient safety and external demand for outpatient QI were the "more important" factors driving QI efforts, whereas lack of human resources and other resources were the "more significant" barriers hindering QI initiatives. The results of the study suggest that, although FPPs showed a strong interest in outpatient QI initiatives, FPPs' efforts are still in an infancy phase and lag far behind inpatient performance measurement activities. Without appropriate resources, it appears unlikely that FPPs will be able to move the agenda forward to develop a quality culture and robust program of self-assessment and improvement in the outpatient setting. PMID:15620074

Maio, Vittorio; Goldfarb, Neil I; Keroack, Mark; Browne, Robert C; Nash, David B

2004-01-01

459

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

PubMed

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

Weller, S C

1991-11-01

460

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

SciTech Connect

M-type Barium Magnesium hexaferrite with the composition BaMg{sub 2}Fe{sub 10}O{sub 19} was successfully prepared with and without surfactant by using a citrate precursor route. The obtained precursors were calcined at various temperatures. The crystalline structure, phase analysis and particle size were investigated by using X-ray diffraction (XRD), Fourier Transform infrared spectroscopy (FTIR), Scanning Electron Microscopy (SEM) techniques. It is observed that the surfactant addition controls the microstructure of the formed Barium Magnesium hexaferrite particles and the type of surfactant plays a crucial role in deciding the morphology of particles.

Paladiya, Snehal; Chauhan, C. C.; Jotania, R. B. [Indus Institute of Technology and Engineering, Rancharda via Thaltej, Ahmedabad-382 115. Gujarat (India)

2010-12-01

461

Photocurrent Characteristics of Mn-Doped Barium Titanate Ferroelectric Single Crystals  

NASA Astrophysics Data System (ADS)

We investigated the photocurrent characteristics of ferroelectric single crystals of nondoped barium titanate (BT) and Mn-doped barium titanate (Mn-BT). The introduction of 90° domain structures into the BT crystals markedly increased the photocurrent, which suggests that the separation of photoinduced carriers is significantly enhanced around 90° domain walls (DWs). The Mn doping led to a drastic increase in photocurrent, with a photon energy less than the band gap. Density functional theory calculations show that the large photocurrent observed for the Mn-BT crystals originates from the electron excitation from the O 2p valence band to the Mn eg defect level followed by carrier (hole) injection.

Inoue, Ryotaro; Ishikawa, Shotaro; Kitanaka, Yuuki; Oguchi, Takeshi; Noguchi, Yuji; Miyayama, Masaru

2013-09-01

462

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

NASA Astrophysics Data System (ADS)

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 900°C 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 metallic. The crystallized films are polycrystalline with equiaxed morphology and average grain diameters in excess of 100 mn. The dielectric properties exhibit permittivities in excess of 1800 at room temperature and zero bias with tunabilites of greater than 90% and high field loss tangents of less than 1%. The phase transition temperature and temperature coefficient of capacitance modified by partially substituting zirconium, hafnium, and tin for titanium. The resulting films were single phase and the phase transition shifts were consistent with bulk materials. A reduction in permittivity was observed for increasing substituent level and was attributed to a reduction in grain size for both barium titanate zirconate and barium titanate hafnate. Processing conditions were chosen to stabilize Sn2+ during the firing process in an attempt to flux the system and increase grain size. The barium titanate stannate films had less reduction in grain size per substituent level than either zirconium or hafnium, however a similar reduction in permittivity was observed. The diminished dielectric response was explained by a defect reaction involving divalent tin and oxygen vacancies that quenched the extrinsic domain response to the dielectric constant. Barium borate fluxes were used to improve densification and crystallinity. Barium borate additions between 0 and 3% uniformly increased grain size and density, while levels greater than 3% resulted in anomalous grain growth. Films with exaggerated grains show tetragonal peak splitting in the X-ray diffraction patterns, consistent with bulk barium titanate. In materials without exaggerated grain growth, dielectric measurements revealed permittivities in excess of 3000 at room temperature (for average grain sizes of approximately 160 nm). This value is equivalent to the finest-prepared bulk ceramics and substantially greater than any polycrystalline film ever reported. This has been attributed to in improvement in film crystallinity. These two accomplishments - tetragonal crystal symmetry and permittivities in excess of 3000 - represent dramatic breakthroughs in ferroelectric thin film technology. (Abstract shortened by UMI.)

Ihlefeld, Jon Fredrick

463

Carriage of Clostridium difficile in outpatients with irritable bowel syndrome.  

PubMed

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

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

2012-09-01

464

Criminal justice referral and incentives in outpatient substance abuse treatment.  

PubMed

A substantial number of substance abusers entering outpatient psychosocial counseling treatment are referred from the criminal justice (CJ) system. This secondary analysis of previously published findings from a large (N=415) multi-site trial of a prize-based abstinence incentive intervention (Petry et al., 2005) examined the influence of CJ referral on usual care outcomes and response to the incentive procedure. CJ referrals (n=138) were more likely than those not CJ referred (n=277) to provide stimulant negative urine samples whether missing samples were counted as positive (50 versus 41%, p=.016) or as missing (96 versus 91%, p<.001). A significant interaction term was found only for percentage of treatment completers (p=.027). However, on that retention variable, and three additional drug use measures, significant incentive effects were confined to participants who entered treatment without referral from the criminal justice system. The study suggests that abstinence incentives should be offered as a first priority to stimulant users entering treatment without criminal justice referral. However, incentives can be considered for use with CJ-referred stimulant users based on the observation that best outcomes were obtained in CJ referrals who also received the abstinence incentive program. PMID:23433822

Defulio, Anthony; Stitzer, Maxine; Roll, John; Petry, Nancy; Nuzzo, Paul; Schwartz, Robert P; Stabile, Patricia

2013-07-01

465

Theory of Mind intervention for outpatients with schizophrenia.  

PubMed

Social disability is one of the critical areas known to be a predictor of daily functioning in schizophrenia. Recent studies showed that impairments in Theory of Mind (ToM) contribute to real-world social functioning and are more strongly associated with community outcomes than other neuropsychological domains of cognition. Several experiments revealed an improving potential of social cognition targeted training, particularly through introduction of verbalisation and explicit manipulation of information about others' mental states. Based on these data, we evaluated longitudinally, with a controlled trial, the feasibility and efficacy of ToM training and the possible influences of daily functioning and IQ on the enhancement of ToM abilities. Thirty outpatients with schizophrenia were recruited and randomly allocated to two groups: ToM Intervention (ToMI), based on verbalisation of selected comic strips representing ToM scenarios, or active control group (ACG). Results showed a significant improvement of ToM abilities among subjects allocated to ToMI compared to ACG, confirming the hypothesis of the enhancing potential of training methods targeting ToM functions. Moreover, we observed no influences of neuropsychological and functional variables on ToM improvement. Development of future studies should take into account possible effects of ToM training on functional outcome, according to the strong associations between ToM abilities and real-world social functioning. PMID:23379271

Bechi, Margherita; Spangaro, Marco; Bosia, Marta; Zanoletti, Andrea; Fresi, Francesco; Buonocore, Mariachiara; Cocchi, Federica; Guglielmino, Carmelo; Smeraldi, Enrico; Cavallaro, Roberto

2013-01-01

466

Assessment of child neurology outpatients with headache, dizziness, and fainting.  

PubMed

Neurologic symptoms such as headache, vertigo, dizziness, and fainting can create a diagnostic problem in pediatric neurology practice because they are also the most common presenting symptoms of psychiatric disorders. Children, especially adolescents, who are often admitted with such autonomic symptoms, are frequently misdiagnosed. In this study, we aimed to investigate the psychiatric morbidity and comorbidity rate in children and adolescents presenting with neurologic symptoms such as headache, vertigo, and syncope. We investigated 31 children who presented with these symptoms. All children were evaluated for their medical history and had a physical and neurologic examination. We attempted to rule out a possible organic etiology. All patients received a complete laboratory examination (blood count, electroencephalography), pediatric cardiology and otorhinolaryngology consultations, and a caloric test. All patients were assessed according to Diagnostic and Statistical Manual of Mental Disorders-IV (DSM-IV) criteria. The majority of the patients (93.5%) received a psychiatric diagnosis according to the DSM-IV criteria. Most of these patients were adolescents and female. Psychosocial stressors such as academic problems, familial dysfunction, parental psychopathology, and child sexual abuse were associated with somatic symptoms. The results of this study demonstrated the importance of differential diagnosis and psychiatric comorbidity in a pediatric neurologic outpatient population. Treatment should be directed at biopsychosocial integrity, and a multidisciplinary treatment approach should be applied. PMID:15224706

Emiro?lu, Fatma Neslihan Inal; Kurul, Semra; Akay, Aynur; Miral, Süha; Dirik, Eray

2004-05-01

467

Outpatient parenteral antimicrobial therapy: Recent developments and future prospects.  

PubMed

Patients with serious infections requiring parenteral antimicrobial therapy are usually hospitalized for treatment. For certain conditions, however, administration of parenteral antibiotics outside the hospital setting may be safe, efficacious, convenient for patients and cost-beneficial. Outpatient parenteral antimicrobial therapy (OPAT) was developed in the US initially and its use has expanded globally during the past three decades. A wide variety of infections are amenable to treatment by OPAT. Once-daily agents such as ceftriaxone or teicoplanin and, more recently, antimicrobials such as ertapenem or daptomycin have been used for OPAT. The use of higher doses and less-frequent dosing of existing agents is being explored, and exciting new developments include the emergence of agents with broader-spectrum activity against drug-resistant organisms and the use of antifungal agents in the OPAT setting. Future prospects in OPAT include the use of more recently launched drugs such as telavancin, as well as drugs in development, including dalbavancin (Durata Therapeutics Inc) and omadacycline (PTK-0796; Novartis AG/PARATEK Pharmaceuticals Inc). This review outlines recent developments in, and future prospects for, the antimicrobial agents used in OPAT. PMID:20721835

Török, M Estee; Chapman, Ann L N; Lessing, M P Albert; Sanderson, Frances; Seaton, R Andrew

2010-08-01

468

Screening soldiers in outpatient care for mental health concerns.  

PubMed

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

Gahm, Gregory A; Lucenko, Barbara A

2008-01-01

469

Accuracy of telepsychiatric assessment of new routine outpatient referrals  

PubMed Central

Background Studies on the feasibility of telepsychiatry tend to concentrate only on a subset of clinical parameters. In contrast, this study utilises data from a comprehensive assessment. The main objective of this study is to compare the accuracy of findings from telepsychiatry with those from face to face interviews. Method This is a primary, cross-sectional, single-cluster, balanced crossover, blind study involving new routine psychiatric referrals. Thirty-seven out of forty cases fulfilling the selection criteria went through a complete set of independent face to face and video assessments by the researchers who were blind to each other's findings. Results The accuracy ratio of the pooled results for DSM-IV diagnoses, risk assessment, non-drug and drug interventions were all above 0.76, and the combined overall accuracy ratio was 0.81. There were substantial intermethod agreements for Cohen's kappa on all the major components of evaluation except on the Risk Assessment Scale where there was only weak agreement. Conclusion Telepsychiatric assessment is a dependable method of assessment with a high degree of accuracy and substantial overall intermethod agreement when compared with standard face to face interview for new routine outpatient psychiatric referrals. PMID:17919329

Singh, Surendra P; Arya, Dinesh; Peters, Trish

2007-01-01

470

Adverse drug reactions in an elderly outpatient population.  

PubMed

The prevalence of adverse drug reactions (ADRs) in elderly outpatients was investigated, along with factors that might be associated with their occurrence. The medical records of elderly patients attending an interdisciplinary geriatric clinic and a general medical clinic during 1988 were audited to collect a variety of demographic and treatment data and to detect documentation of first-time ADRs. Subjects were classified as having had an ADR if a physician documented this or if a relevant symptom was noted in the record and a score of 1 or above was obtained on the Adverse Drug Reaction Probability Scale. The presence of potential drug interactions was also assessed. The sample size was 463 patients, of whom 332 attended the medical clinic and 131 attended the geriatric clinic. Potential drug interactions were identified in the records of 143 subjects (31%). There were 107 documented ADRs in 97 patients (21%). Of these patients, 86 were noted by the physicians as having had an ADR. Twelve patients were hospitalized as a direct result of an ADR. Significant risk factors for ADRs were attendance in the geriatric clinic, the use of potentially harmful drug combinations, and the use of drugs that require therapeutic monitoring. Patient age and the number of drugs had no association with ADRs. In the elderly population studied, patients with frailty arising from multiple pathologies were more likely to have ADRs than the more robust elderly, even when their therapeutic regimens were simplified. PMID:1570873

Schneider, J K; Mion, L C; Frengley, J D

1992-01-01

471

Outpatient medical care of injection drug use related HIV.  

PubMed

By the end of March 1990 470 HIV positive patients, 77% injection drug use (IDU) related, had attended the outpatient department of the Regional Infectious Disease Unit with a cumulative loss to follow-up of only 20%. Coincident with the prescribing of oral methadone and a specific all-day IDU-related HIV medical clinic the total number of appointments increased from 28/month in May 1986 to 300/month in May 1989 (P less than 0.001) and the number of defaulted appointments decreased from a maximum of 60% (17/28) to 16% (48/294, P less than 0.001) in these months. There was a significant initial increase in the number of defaulted appointments for the infectious disease (ID) clinics from 11% (77/726) to 16% (124/797, P less than 0.01) which returned to previous levels once a specific IDU-related HIV clinic was established. There was also a significant decline in the number of new patients referred which was greater for the urinary tract infection clinics (108 to 56 per 6 months, P less than 0.0001) than for the ID clinics (119 to 88 per 6 months, P less than 0.05). PMID:1315159

Brettle, R P; Gore, S M; McNeil, A

1992-01-01

472

SELF MEDICATION AMONGST GENERAL OUTPATIENTS IN A NIGERIAN COMMUNITY HOSPITAL  

PubMed Central

Aim: This study was designed to determine the proportion of general out patients who practice self medication, the drugs employed and the reasons for resorting to self medication. Methodology: This study was conducted between June and December, 2007 at the General Outpatient Clinic of the Federal Medical Centre, Owo, Ondo State, Nigeria. Two hundred consenting respondents were selected by simple random sampling and interviewed with the aid of semi structured questionnaire by the authors with three assistants. Information regarding their bio-data, history of self medication, drugs used and the reasons for resorting to self medication were obtained. Results: Majority of the respondents (85%) admitted to self medication while the remaining proportion (15%) did not practice it. Drugs utilized could be single, usually analgesics (26.5%) and anti-malaria (15.9%) or in combinations, usually antimalaria-analgesics (22.4%), antimalariaanalgesic- antibiotic (15.3%) and antibiotic-analgesic (10.0%). The reasons cited by respondents for self medication were their perception of their complaints been minor enough to be amenable to self medication (54.7%) and financial constraint (22.4%). Conclusion: Majority of the respondents practiced self medication using an array of drugs like analgesics, anti-malaria and antibiotics used either singly or in combination. The main reasons identified for self medication were that the ailments were minor and financial constraint.

Omolase, C.O.; Adeleke, O.E.; Afolabi, A.O.; Afolabi, O.T.

2007-01-01

473

Small interventions in outpatient surgery: Project of Advanced Nursing Skills.  

PubMed

The research analyzes data on the impact of the introduction of the figure nursing with advanced skills, "Advanced Skills" , in diagnostic and therapeutic surgical clinics within the Hospital of Piacenza. This is the application of the testing on the Project of Nursing "Skills"on advanced minor surgery "Minor Surgery", an outpatient procedure. They were given the satisfaction questionnaires to users and to the medical and nursing staff of the USL in Piacenza. The aim of the study was to verify the contention of the literature about the usefulness of an increased use of nursing skills within an ambulatory surgery to improve the quality of care and consequently to a higher user satisfaction. In light of the findings of the research, the ' impact of the implementation of the Project Advanced Nursing Skills has been positive, both among users is that health care providers. For a functional and effective management of the surgery may be useful to train a new nursing characterized by the possession of "Advanced Skills" whose "mission" is to develop more knowledge, share knowledge, as well as to foster innovation organizational and management to meet the demands of public health.  PMID:25265441

Bulgarelli, Ketty; Spinelli, Valentina; Cattaneo, Gaetano Maria; Sarli, Leopoldo; Tibaldi, Laura

2014-01-01

474

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

PubMed

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

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

2012-01-01

475

Preventing Medical Noncompliance in the Outpatient Treatment of Bipolar Affective Disorders.  

ERIC Educational Resources Information Center

Evaluated the efficacy of a preventive compliance intervention based on cognitive therapy principles with newly admitted lithium outpatients (N=28). Results indicated that the intervention significantly enhanced compliance at both postintervention and 6-month follow-up assessment. (LLL)

Cochran, Susan D.

1984-01-01

476

The case for outpatient treatment of Plasmodium falciparum malaria in a selected UK immigrant population.  

PubMed

UK guidance recommends that all patients with falciparum malaria be admitted to hospital, although a number of cohort studies in the developed world demonstrate that outpatient treatment of falciparum malaria is feasible and safe in selected patients. We review the literature on outpatient treatment in developed countries and present local data from East London where a selected immigrant population were successfully treated as outpatients. Although it is premature to claim that outpatient treatment of falciparum malaria is safe in all selected patients, we conclude it is time for a large UK-based safety study or randomised trial to dispel the belief that all patients with uncomplicated Plasmodium falciparum must be admitted to hospital. PMID:19706306

Melzer, Mark; Lacey, Sandra; Rait, Greta

2009-10-01