WorldWideScience

Sample records for needle exchange programs

  1. Return Rates for Needle Exchange Programs: A Common Criticism Answered

    Directory of Open Access Journals (Sweden)

    Ksobiech Kate

    2004-04-01

    Full Text Available Abstract This study searched the available needle exchange program (NEP literature for return rate data. A total of 26 articles were found. The overall worldwide return rate was 90%, although this ranged from a low of 15% to a high of 112%. U.S. NEP return rates were gathered from only eight studies, indicating a clear need for more data, although U.S. return rates were comparable to those from NEPs outside of the U.S. One underlying assumption made by opponents of NEPs is that IDUs will not return needles to the distribution site, thereby potentially increasing the risk of health problems to the surrounding community from exposure to contaminated needles. This study's results suggest that NEPs are relatively successful in taking in used needles, although it is generally unclear where the needles were originally acquired, and if IDUs return their own needles, or are returning needles for a social network. Ways for AIDS Service Organizations to capitalize on these brief encounters with IDUs, as well as public policy implications of the findings, are discussed.

  2. [Needle exchange programs are a cost-effective preventative measure against HIV in Iceland].

    Science.gov (United States)

    Eythórsson, Elías Sæbjorn; Ásgeirsdóttir, Tinna Laufey; Gottfređsson, Magnús

    2014-07-01

    In 2007 there was a sudden increase in HIV cases among intravenous drug users (IDUs) in Iceland. In 2007 - 2011 there were 34 new HIV cases among IDUs compared to four in the previous four year period. The purpose of this study was to assess whether needle exchange programs (NEPs) were cost-effective in preventing the spread of HIV among IDUs in Iceland. Cost-utility analysis was conducted from a societal perspective. Costs are presented at the 2011 price level and values were discounted using a 3% discount rate. A ten year period, 2011 - 2020 was compared with and without NEPs. The Incremental Cost-Utility Ratio (ICUR) was calculated as societal cost per quality adjusted life year (QALY). Sensitivity analysis was performed on study assumptions. The estimated societal costs associated with HIV infections among IDUs from 2011 - 2020 was 914.369.621 ISK without NEP and 947.653.758 ISK with NEP. Excess societal cost due to NEP was 33.284.137 ISK. Societal utility from NEP was 7,39 QALYs. Additionally, NEP prevented 4-5 HIV infections. The ICUR of providing NEP was 4.506.720 ISK. According to WHO an intervention is considered cost-effective if the ICUR is less than three-fold national GDP per capita. In 2011 the GDP per capita in Iceland was 15.315.000 ISK. Sensitivity analysis on study assumptions yielded a societal cost within the WHO limit. Therefore, the results indicate that NEPs are cost-effective in preventing the spread of HIV among IDUs in Iceland.

  3. Students as effective harm reductionists and needle exchange organizers.

    Science.gov (United States)

    Barbour, Kyle; McQuade, Miriam; Brown, Brandon

    2017-03-17

    Needle exchange programs are safe, highly effective programs for promoting health among people who inject drugs. However, they remain poorly funded, and often illegal, in many places worldwide due to fear and stigma surrounding drug use. Continued advocacy, education, and implementation of new needle exchanges are thus essential to improve public health and reduce structural inequality. We argue that students, and especially professional and graduate students, have the potential to play an important role in advancing harm reduction. Students benefit from the respect given to the professions they are training to enter, which gives them leverage to navigate the political hurdles often faced by needle exchange organizers, especially in areas that presently lack services. In addition, due to their relative simplicity, needle exchanges do not require much of the licensing, clinical knowledge, and infrastructure associated with more traditional student programs, such as student-run free medical clinics. Students are capable of learning harm reduction cultural approaches and techniques if they remain humble, open-minded, and seek the help of the harm reduction community. Consequently, students can generate tremendous benefits to their community without performing beyond their appropriate clinical limitations. Students benefit from organizing needle exchanges by gaining applied experience in advocacy, organization-building, and political finesse. Working in a needle exchange significantly helps erode stigma against multiple marginalized populations. Students in health-related professions additionally learn clinically-relevant knowledge that is often lacking from their formal training, such as an understanding of structural violence and inequality, root causes of substance use, client-centered approaches to health services, and interacting with clients as peers, rather than through the standard hierarchical medical interaction. We therefore encourage students to learn about

  4. Vaccination against hepatitis B virus among people who inject drugs - A 20year experience from a Swedish needle exchange program.

    Science.gov (United States)

    Alanko Blomé, M; Björkman, P; Flamholc, L; Jacobsson, H; Widell, A

    2017-01-03

    People who inject drugs (PWID) are at particular risk of hepatitis B virus (HBV) acquisition, but often have poor access or adherence to HBV vaccination. Vaccination against HBV has been offered at a major Swedish needle exchange program (NEP) since 1994. The aim of this study was to evaluate vaccine completion and response rates, and the effect of sequential booster doses to non-responders to the standard vaccination schedule. PWID enrolled in the NEP 1994-2013, without serological markers for HBV at baseline (negative for HBsAg/anti-HBc/anti-HBs), were offered a three-dose standard intramuscular vaccination schedule (Engerix®-B, GSK, 20μg/mL, intended to be received at months 0, 1 and 6). Vaccination response was defined as protective levels of anti-HBs (⩾10mIU/mL). Up to three booster doses were then offered for non-responders, each followed by anti-HBs testing. HBV data was available for 2352 identifiable individuals at NEP enrolment, of whom 1516 (64.5%) had no markers for previous HBV exposure or vaccination. Vaccination was initiated for 1142 (75.3%) individuals and 898 (59.2%) completed the standard vaccination schedule. Post-vaccination anti-HBs levels were available from 800 individuals, with 598 (74.8%) responding to the basic vaccination schedule. After up to three booster doses a total of 676 (84.5%) individuals achieved protective anti-HBs levels. Non-response to vaccination was associated with higher age and anti-HCV positivity (pvaccine non-responders, as well as 30 cases among those who had not completed vaccination. We demonstrate the feasibility of including HBV vaccination in the services offered by a NEP, with completion of vaccination in a majority of HBV-susceptible PWID. The response to HBV vaccination among PWID was relatively low; however, the addition of up to three booster doses improved the response rate from 74.8 to 84.5%. Copyright © 2016 Elsevier Ltd. All rights reserved.

  5. Influence of Peer-Based Needle Exchange Programs on Mental Health Status in People Who Inject Drugs: A Nationwide New Zealand Study.

    Science.gov (United States)

    Hay, Bianca; Henderson, Charles; Maltby, John; Canales, Juan J

    2016-01-01

    Alleviating the personal and social burden associated with substance use disorders requires the implementation of a comprehensive strategy, including outreach, education, community interventions, psychiatric treatment, and access to needle exchange programs (NEP), where peer support may be available. Given that substantial research underscores the potential benefits of peer support in psychiatric interventions, we aimed to conduct a national survey to examine key domains of mental health status in people who inject drugs (PWID) in New Zealand. PWID were recruited from 24 pharmacies and 16 dedicated peer-based needle exchanges (PBNEs) across the country. We focused on two mental health outcomes: (1) affective dysregulation, across the three emotional domains of the Depression Anxiety Stress Scale, due to its role in the maintenance of continued drug use, and (2) positive cognition and effective health- and drug-related information exchange with the provider, using the Satisfaction with Life Scale and an ad hoc questionnaire, respectively, in view of their association with improved mental health outcomes. We hypothesized that access to peer support would be associated with mental health benefits for PWIDs. Remarkably, the results of a multistep regression analysis revealed that irrespective of sex, age, ethnicity, main drug used, length of drug use, and frequency of visits to the NEP, the exclusive or preferential use of PBNEs predicted significantly lower depression and anxiety scores, greater satisfaction with life, and increased health-related information exchange with the service provider. These findings demonstrate for the first time an association between access to peer support at PBNEs and positive indices of mental health, lending strong support to the effective integration of such peer-delivered NEP services into the network of mental health services for PWID worldwide.

  6. Operating needle exchange programmes in the hills of Thailand.

    Science.gov (United States)

    Gray, J

    1995-01-01

    Injecting drug use is increasingly markedly amongst the ethnically distinct Hilltribe peoples of northern Thailand in the notorious 'Golden Triangle'. This paper reports on the establishing of needle exchanges in three remote Hilltribe villages, examining the success and the failure. Up to 60% of adult males and a smaller percentage of adult females in these villages are habitual users of opium and/or heroin. Overcoming initial concern that needle distribution would encourage increased use, the villagers themselves have assumed responsibility for much of the needle exchange operation. Prior to the introduction of the needle exchanges all the injecting drug users were sharing needles. This behaviour changed significantly with the introduction of the exchanges. Reluctance on the part of locally-based government officials to participate fully in the programme created difficulties in maintaining needle supplies which saw some resumption in needle sharing. HIV seroprevalence rates amongst the tested injecting drug users remained fairly stable at 33% in February 1993 and 32% in February 1994. The conclusion can be drawn that needle exchange programmes are operable in the Hilltribe context and that they are the best means of limiting HIV/AIDS transmission amongst injecting drug users and the wider community. The success of needle exchange programmes, however, is dependent upon co-operation from various government agencies and non-government agencies, in addition to the local communities. To this end mechanisms ensuring co-operation, training, monitoring and evaluation need to be developed alongside the introduction of needle exchanges.

  7. A GIS-based methodology for improving needle exchange service delivery

    Science.gov (United States)

    Davidson, Peter J.; Scholar, Shoshanna; Howe, Mary

    2010-01-01

    Background A variety of legal, social and logistical factors can prevent individuals from accessing formal needle exchange programs. One common solution to this problem is satellite exchange, which involves collaborating with people who already use an exchange to deliver needles and other supplies to those unable to access the exchange. While this approach can be very successful, one potential problem is that those most willing to deliver needles to their peers are often members of social networks that are already well connected with the needle exchange, leading to duplication of effort. In this paper we describe a simple and novel method for identifying groups of people who are demonstrably in need of improved access to needles, and for re-targeting efforts to meet the needs of those people. The method described was piloted at the Homeless Youth Alliance, San Francisco, USA, and further refined at Clean Needles Now, Los Angeles, USA. Methods People accessing needle exchange sites were asked to participate in a survey with two questions: “where were you and what time was it last time someone borrowed a needle from you?” and “where were you and what time was it last time you had to borrow a needle from someone else?” Responses were geocoded, and maps produced showing ‘hotspots’ where people were frequently finding themselves without needles. Results Satellite needle exchange was refined from an ad-hoc activity into one which focused on delivering needles to those with empirically demonstrable need. Maps produced in the process also proved valuable in discussions with local officials and other agencies about funding, as well as needle provision policy and practices. Conclusion We describe a method for rapidly assessing, describing, and responding to unmet and under-met need among injecting drug users. The method is particularly well-suited to organizations with extremely limited resources. PMID:21112757

  8. Barriers and Potential Improvements for Needle and Syringe Exchange Programs (NSPs) in China: A Qualitative Study from Perspectives of Both Health and Public Security Sectors.

    Science.gov (United States)

    Koo, Fung Kuen; Chen, Xi; Chow, Eric P F; Jing, Jun; Zheng, Jun; Zhao, Junshi; Zhang, Lei

    2015-01-01

    This study explores the acceptability, the barriers to the implementation of needle and syringe exchange programs (NSPs) and the potential improvement strategies in China from the perspectives of governmental health and public security officials. Purposive sampling was used for recruitment of participants who had been involved in NSPs implementation. Semi-Structured individual interviews were conducted in Mandarin to address three aspects of NSPs: (1) participants' attitudes towards NSPs, (2) participants' opinions on the effectiveness and barriers of NSPs, and (3) suggestions for improving the program. Content analysis was used to analyse the translated interview data. A total of 68 participants from 12 Hunan counties were interviewed (34 from each of the Bureau of Health and the Narcotic Division). Both groups recognised the importance and effectiveness of NSPs in HIV prevention, but public security officials regarded NSPs as a temporary intervention in place of punitive measures. Most health officials (32/34) regarded the main barriers to its implementation as administrative and structural, whereas participants from Narcotics Division (n=24) questioned the legitimacy of NSPs and concerned about the poor management of drug users' risk behaviours. Close cooperation between the health and public security sectors, engagement of the drug user community and an enabling policy environment were reportedly to be critical for potential improvements of NSPs in China. Misconceptions about NSPs encourage drug users' addictive behaviour, and an unclear leadership and insufficient support de-motivate the participants from the Bureau of Health and the Narcotics Division to actively support the program implementation.

  9. The Washington Needle Depot: fitting healthcare to injection drug users rather than injection drug users to healthcare: moving from a syringe exchange to syringe distribution model

    Directory of Open Access Journals (Sweden)

    Glickman Andrea

    2010-01-01

    Full Text Available Abstract Needle exchange programs chase political as well as epidemiological dragons, carrying within them both implicit moral and political goals. In the exchange model of syringe distribution, injection drug users (IDUs must provide used needles in order to receive new needles. Distribution and retrieval are co-existent in the exchange model. Likewise, limitations on how many needles can be received at a time compel addicts to have multiple points of contact with professionals where the virtues of treatment and detox are impressed upon them. The centre of gravity for syringe distribution programs needs to shift from needle exchange to needle distribution, which provides unlimited access to syringes. This paper provides a case study of the Washington Needle Depot, a program operating under the syringe distribution model, showing that the distribution and retrieval of syringes can be separated with effective results. Further, the experience of IDUs is utilized, through paid employment, to provide a vulnerable population of people with clean syringes to prevent HIV and HCV.

  10. Injecting drug use in prison: prevalence and implications for needle exchange policy.

    Science.gov (United States)

    Wright, Nat M J; Tompkins, Charlotte N E; Farragher, Tracey M

    2015-01-01

    The purpose of this paper is to explore prison drug injecting prevalence, identify any changes in injecting prevalence and practice during imprisonment and explore views on prison needle exchange. An empirical prospective cohort survey conducted between 2006 and 2008. The study involved a random sample of 267 remand and sentenced prisoners from a large male category B prison in England where no prison needle exchange operates. Questionnaires were administered with prisoners on reception and, where possible, at one, three and six months during their sentence. In total, 64 per cent were injecting until admission into prison. The majority intended to stop injecting in prison (93 per cent), almost a quarter due to the lack of needle exchange (23 per cent). Yet when hypothetically asked if they would continue injecting in prison if needle exchange was freely available, a third of participants (33 per cent) believed that they would. Injecting cessation happened on prison entry and appeared to be maintained during the sentence. Not providing sterile needles may increase risks associated with injecting for prisoners who continue to inject. However, providing such equipment may prolong injecting for other prisoners who currently cease injecting on account of needle exchange programmes (NEPs) not being provided in the UK prison setting. Practical implications - Not providing sterile needles may increase risks associated with injecting for prisoners who continue to inject. However, providing such equipment may prolong injecting for other prisoners who currently cease injecting on account of NEPs not being provided in the UK prison setting. This survey is the first to question specifically regarding the timing of injecting cessation amongst male prisoners and explore alongside intention to inject should needle exchange facilities be provided in prison.

  11. CO2 AND O3 ALTER PHOTOSYNTHESIS AND WATER VAPOR EXCHANGE FOR PINUS PONDEROSA NEEDLES

    Science.gov (United States)

    1. Effects of CO2 and O3 were determined for a key component of ecosystem carbon and water cycling: needle gas exchange (photosynthesis, conductance, transpiration and water use efficiency). The measurements were made on Pinus ponderosa seedlings grown in outdoor, sunlit, mesoc...

  12. Why do the clients of Georgian needle exchange programmes inject buprenorphine?

    Science.gov (United States)

    Otiashvili, David; Zabransky, Tomas; Kirtadze, Irma; Piralishvili, Gvantsa; Chavchanidze, Marina; Miovsky, Michal

    2010-01-01

    The aim of the study was to understand the prevalence and patterns of the non-medical injecting use of buprenorphine among drug injectors in Georgia. A self-administered questionnaire was distributed among injecting drug users enrolled in Georgian needle exchange programmes. The questions covered topics related to drug use career, patterns (frequency, history, dosage) and reasons for the use of buprenorphine. Pharmaceutical buprenorphine in the form of Subutex was the most commonly injected drug in terms of lifetime (95.5%) and last-month (75%) prevalence of use. 48% of those study participants who had injected Subutex at some point reported having used it to cope with withdrawal or to give up other opioids. 90.5% of Subutex injectors used 1-2 mg as a single dose, and the mean frequency of its injection was 6 times per month. 75% of Subutex injectors had used 3 or more types of illegal drugs during the last 30 days. While widely misused by Georgian drug injectors, Subutex is neither the principal nor the favourite drug, and it is rather used as self-treatment. The authors consider the introduction of buprenorphine maintenance treatment to be a promising effective measure to decrease its non-medical and illegal use. Copyright 2009 S. Karger AG, Basel.

  13. Staff Exchange or Legal Alien Programs

    DEFF Research Database (Denmark)

    Jørgensen, Rune Nørgaard

    2016-01-01

    SRA would very much like to support the exchange of best practice between members throughout the year and the Membership Committee is presently looking into the opportunities for a Staff Exchange or Legal Alien Program. However the International Section has already had the chance to provide...

  14. Europlanet-2020 NA1 Exchange Program

    Science.gov (United States)

    Genzer, M.; Szego, K.; Haukka, H.; Harri, A.-M.

    2017-09-01

    The task of Exchange Program of NA1 is to support the activities of EPN2020 with experts and scientific exchange whenever it is needed. Short visits (up to 1 week) with the goal of improving infrastructure facilities and services offered to the scientific community are supported from this task. Since the start of the EPN2020 in September 2015 we have received and approved 14 applications for exchange program travel. More general and specifically targeted calls are planned for the future. The calls are announced on Europlanet-2020 NA1 web site.

  15. Determinants of HIV sero-conversion among male injection drug users enrolled in a needle exchange programme at Karachi, Pakistan

    International Nuclear Information System (INIS)

    Samo, R. N.; Altaf, A.

    2013-01-01

    Objective: To assess the determinants of HIV sero-conversion among male injection drug users enrolled in needle exchange programme at Karachi. Methods: An unmatched retrospective case control study was conducted among male injection drug users receiving needle exchange services in Karachi. The cases and controls were identified from one drop in center providing needle exchange services. The data for the study participants was collected retrospectively from the programme. Descriptive statistics, univariate analysis, and multivariate regression analysis for determinants of HIV sero-conversion and Hosmer and Lameshow goodness of fit test for model adequacy were performed. Results: Mean age of the study participants was 34.17 +- 10.74 years. Average monthly income of the participants was US$ 125.15+-76.32. In unconditional multivariate regression analysis being unmarried (AOR: 3.0 95% CI 1.14-7.9, p=0.02), not living with family (AOR: 2.8 95% CI 1.18-6.79 p=0.02), family history of addiction (AOR: 2.5, 95% CI 1.01-6.49, p=0.04), injecting drugs in groups (AOR: 2.8, 95% CI 1.12 7.02 p=0.02), not obtaining syringes from the programme (AOR: 26.45, 95% CI 2.47-282.8 p=0.007), and history of blood transfusion (AOR: 52.9, 95% CI 1.32-2118.41 p=0.03) were significantly associated with HIV positive sero-status. Model adequacy was assessed by Hosmer and Lameshow goodness of (J: 4.95, p=0.7) indicating that the model was accurate. Conclusion: Social and drug related risky behaviours are important determinants of HIV among male IDUs in Karachi. The situation calls for programmatic initiatives for addressing the risky behaviours among IDUs for effective control of epidemic in the country. (author)

  16. 22 CFR Appendix B to Part 62 - Exchange Visitor Program Services, Exchange-Visitor Program Application

    Science.gov (United States)

    2010-04-01

    ... 22 Foreign Relations 1 2010-04-01 2010-04-01 false Exchange Visitor Program Services, Exchange-Visitor Program Application B Appendix B to Part 62 Foreign Relations DEPARTMENT OF STATE PUBLIC DIPLOMACY... Media and Communications; 03—Education; 04—Business and Commercial; 05—Banking and Financial; 06...

  17. Role of needle surface waxes in dynamic exchange of mono- and sesquiterpenes

    Directory of Open Access Journals (Sweden)

    J. Joensuu

    2016-06-01

    Full Text Available Biogenic volatile organic compounds (BVOCs produced by plants have a major role in atmospheric chemistry. The different physicochemical properties of BVOCs affect their transport within and out of the plant as well as their reactions along the way. Some of these compounds may accumulate in or on the waxy surface layer of conifer needles and participate in chemical reactions on or near the foliage surface. The aim of this work was to determine whether terpenes, a key category of BVOCs produced by trees, can be found on the epicuticles of Scots pine (Pinus sylvestris L. and, if so, how they compare with the terpenes found in shoot emissions of the same tree. We measured shoot-level emissions of pine seedlings at a remote outdoor location in central Finland and subsequently analysed the needle surface waxes for the same compounds. Both emissions and wax extracts were clearly dominated by monoterpenes, but the proportion of sesquiterpenes was higher in the wax extracts. There were also differences in the terpene spectra of the emissions and the wax extracts. The results, therefore, support the existence of BVOC associated to the epicuticular waxes. We briefly discuss the different pathways for terpenes to reach the needle surfaces and the implications for air chemistry.

  18. Social Network Analysis of the Farabi Exchange Program: Student Mobility

    Science.gov (United States)

    Ugurlu, Zeynep

    2016-01-01

    Problem Statement: Exchange programs offer communication channels created through student and instructor exchanges; a flow of information takes place through these channels. The Farabi Exchange Program (FEP) is a student and instructor exchange program between institutions of higher education. Through the use of social network analysis and…

  19. Housing Instability among People Who Inject Drugs: Results from the Australian Needle and Syringe Program Survey

    OpenAIRE

    Topp, Libby; Iversen, Jenny; Baldry, Eileen; Maher, Lisa

    2012-01-01

    High rates of substance dependence are consistently documented among homeless people, and are associated with a broad range of negative outcomes among this population. Investigations of homelessness among drug users are less readily available. This study examined the prevalence and correlates of housing instability among clients of needle syringe programs (NSPs) via the Australian NSP Survey, annual cross-sectional seroprevalence studies among NSP attendees. Following self-completion of a bri...

  20. Measurement of backbone hydrogen-deuterium exchange in the type III secretion system needle protein PrgI by solid-state NMR

    Science.gov (United States)

    Chevelkov, Veniamin; Giller, Karin; Becker, Stefan; Lange, Adam

    2017-10-01

    In this report we present site-specific measurements of amide hydrogen-deuterium exchange rates in a protein in the solid state phase by MAS NMR. Employing perdeuteration, proton detection and a high external magnetic field we could adopt the highly efficient Relax-EXSY protocol previously developed for liquid state NMR. According to this method, we measured the contribution of hydrogen exchange on apparent 15N longitudinal relaxation rates in samples with differing D2O buffer content. Differences in the apparent T1 times allowed us to derive exchange rates for multiple residues in the type III secretion system needle protein.

  1. Unstable housing as a factor for increased injection risk behavior at US syringe exchange programs.

    Science.gov (United States)

    Des Jarlais, Don C; Braine, Naomi; Friedmann, Patricia

    2007-11-01

    To assess variation in injection risk behavior among unstably housed/homeless injecting drug users (IDUs) across programs in a national sample of US syringe exchange programs. About 23 syringe exchange programs were selected through stratified random sampling of moderate to very large US syringe exchange programs operating in 2001-2005. Subjects at each program were randomly sampled. Risk behavior interviews were collected using audio-computer assisted self-interviewing (A-CASI). "Unstable housing/homelessness" was operationally defined as having lived "on the street or in a shanty" or "living in a shelter or single room occupancy hotel (SRO)" at any time in the 6 months prior to the interview. "Receptive sharing" was operationally defined as having injected with a needle or syringe that "had been used by someone else" in the 30 days prior to the interview. Six very large and nine moderate-to-large programs had at least 50 subjects who reported unstable housing, and these 15 programs were used in the analyses. There was considerable variation among the 15 programs in the percentages of unstably housed participants (range from 35 to 74%, P lack of significant variation in the odds ratios for increased injection risk suggests that none of the programs were "better" or "worse" at reducing injection risk behavior among unstably housed participants. Reduction in injecting risk behavior among syringe exchange participants may require greater efforts to provide stable housing or the development of dramatically new interventions to reduce injecting risk behavior among IDUs with persistent unstable housing.

  2. 76 FR 23177 - Exchange Visitor Program-Summer Work Travel

    Science.gov (United States)

    2011-04-26

    ... Travel exchange programs have been a cornerstone of U.S. public diplomacy efforts for nearly 50 years..., concerned American citizens, the media, law enforcement agencies, other federal and local agencies, and the... participants are at risk, the Exchange Visitor Program's usefulness as a public diplomacy tool is jeopardized...

  3. High coverage needle/syringe programs for people who inject drugs in low and middle income countries: a systematic review

    Directory of Open Access Journals (Sweden)

    Des Jarlais Don C

    2013-01-01

    Full Text Available Abstract Background Persons who inject drugs (PWID are at an elevated risk for human immunodeficiency virus (HIV and hepatitis C virus (HCV infection. In many high-income countries, needle and syringe exchange programs (NSP have been associated with reductions in blood-borne infections. However, we do not have a good understanding of the effectiveness of NSP in low/middle-income and transitional-economy countries. Methods A systematic literature review based on PRISMA guidelines was utilized to collect primary study data on coverage of NSP programs and changes in HIV and HCV infection over time among PWID in low-and middle-income and transitional countries (LMICs. Included studies reported laboratory measures of either HIV or HCV and at least 50% coverage of the local injecting population (through direct use or through secondary exchange. We also included national reports on newly reported HIV cases for countries that had national level data for PWID in conjunction with NSP scale-up and implementation. Results Studies of 11 NSPs with high-coverage from Bangladesh, Brazil, China, Estonia, Iran, Lithuania, Taiwan, Thailand and Vietnam were included in the review. In five studies HIV prevalence decreased (range −3% to −15% and in three studies HCV prevalence decreased (range −4.2% to −10.2%. In two studies HIV prevalence increased (range +5.6% to +14.8%. HCV incidence remained stable in one study. Of the four national reports of newly reported HIV cases, three reported decreases during NSP expansion, ranging from −30% to −93.3%, while one national report documented an increase in cases (+37.6%. Estimated incidence among new injectors decreased in three studies, with reductions ranging from −11/100 person years at risk to −16/100 person years at risk. Conclusions While not fully consistent, the data generally support the effectiveness of NSP in reducing HIV and HCV infection in low/middle-income and transitional-economy countries. If

  4. Senate follows House in banning funds for needle swaps.

    Science.gov (United States)

    1998-06-26

    The U.S. Senate has approved anti-drug legislation which permanently bans Federal funding for needle-exchange programs. Senator Paul Coverdell of Georgia added the anti-drug legislation to a tobacco bill that is very important to many politicians. During the Senate approval process of this tobacco bill, needle exchange programs were hardly mentioned. If the combined bill reaches the President, it is believed that he will sign it because of the Administration's interest in tobacco legislation. If, however, the tobacco bill is not approved, the funding ban may be attached to other, less controversial legislation.

  5. Needle and syringe programs in Yunnan, China yield health and financial return

    Directory of Open Access Journals (Sweden)

    Xun Zhuang

    2011-04-01

    Full Text Available Abstract Background As a harm reduction strategy in response to HIV epidemics needle and syringes programs (NSPs were initiated throughout China in 2002. The effectiveness of NSPs in reducing the spread of infection in such an established epidemic is unknown. In this study we use data from Yunnan province, the province most affected by HIV in China, to (1 estimate the population benefits in terms of infections prevented due to the programs; (2 calculate the cost-effectiveness of NSPs. Methods We developed a mathematical transmission model, informed by detailed behavioral and program data, which accurately reflected the unique HIV epidemiology among Yunnan injecting drug users (IDUs in the presence of NSPs. We then used the model to estimate the likely epidemiological and clinical outcomes without NSPs and conducted a health economics analysis to determine the cost-effectiveness of the program. Results It is estimated that NSPs in Yunnan have averted approximately 16-20% (5,200-7,500 infections of the expected HIV cases since 2002 and led to gains of 1,300-1,900 DALYs. The total $1.04 million spending on NSPs from 2002 to 2008 has resulted in an estimated cost-saving over this period of $1.38-$1.97 million due to the prevention of HIV and the associated costs of care and management. Conclusion NSPs are not only cost-effective but cost-saving in Yunnan. Significant scale-up of NSPs interventions across China and removal of the societal and political barriers that compromise the effects of NSPs should be a health priority of the Chinese government.

  6. Program Integration for International Technology Exchange

    International Nuclear Information System (INIS)

    Rea, J.L.

    1993-01-01

    Sandia National Laboratories (SNL), Albuquerque, New Mexico, supports the International Technology Exchange Division (ITED) through the integration of all international activities conducted within the DOE's Office of Environmental Management (EM)

  7. CGH Short Term Scientist Exchange Program (STSEP)

    Science.gov (United States)

    STSEP promotes collaborative research between established U.S. and foreign scientists from low, middle, and upper-middle income countries (LMICs) by supporting, in part, exchange visits of cancer researchers between U.S. and foreign laboratories.

  8. Government-Industry Data Exchange Program (GIDEP) and NASA Advisories

    Science.gov (United States)

    Sampson, Michael J.

    2010-01-01

    This viewgraph presentation reviews the Government-Industry Data Exchange Program (GIDEP) and NASA Advisories policy to practice. The contents include: 1) Purpose of the Government-Industry Data Exchange Program (GIDEP); 2) NASA and GSFC Documentation; 3) NASA Advisories, differences from GIDEP; 4) GIDEP Distribution by Originator; 5) New Interim GIDEP Policy for Suspect Counterfeits; 6) NASA and Suspect Counterfeits; 7) Threats to GIDEP; and 8) Conclusions and Contact Information.

  9. A software program for exchanging MR data

    DEFF Research Database (Denmark)

    Ring, P B; Jensen, J A; Henriksen, O

    1993-01-01

    of digital MR images of the human brain. Because there was no common data format, software package was developed for data exchange. This article describes the basic features of the developed software. The software package was written in the language of C and was successfully tested on an IBM-6150 UNIX...... workstation. The software is currently being tested on the following series of UNIX workstations: SUN SPARC, IBM RS6000, and HP 9000/700....

  10. Housing instability among people who inject drugs: results from the Australian needle and syringe program survey.

    Science.gov (United States)

    Topp, Libby; Iversen, Jenny; Baldry, Eileen; Maher, Lisa

    2013-08-01

    High rates of substance dependence are consistently documented among homeless people, and are associated with a broad range of negative outcomes among this population. Investigations of homelessness among drug users are less readily available. This study examined the prevalence and correlates of housing instability among clients of needle syringe programs (NSPs) via the Australian NSP Survey, annual cross-sectional seroprevalence studies among NSP attendees. Following self-completion of a brief, anonymous survey and provision of a capillary blood sample by 2,396 NSP clients, multivariate logistic regressions identified the variables independently associated with housing instability. Nineteen percent of ANSPS participants reported current unstable housing, with primary ('sleeping rough'; 5 %), secondary (staying with friends/relatives or in specialist homelessness services; 8 %), and tertiary (residential arrangements involving neither secure lease nor private facilities; 6 %) homelessness all evident. Extensive histories of housing instability were apparent among the sample: 66 % reported at least one period of sleeping rough, while 77 % had shifted between friends/relatives (73 %) and/or resided in crisis accommodation (52 %). Participants with a history of homelessness had cycled in and out of homelessness over an average of 10 years; and one third reported first being homeless before age 15. Compared to their stably housed counterparts, unstably housed participants were younger, more likely to be male, of Indigenous Australian descent, and to report previous incarceration; they also reported higher rates of key risk behaviors including public injecting and receptive sharing of injecting equipment. The high prevalence of both historical and current housing instability among this group, particularly when considered in the light of other research documenting the many adverse outcomes associated with this particular form of disadvantage, highlights the need

  11. The American Nuclear Society's international student exchange program

    International Nuclear Information System (INIS)

    Bornstein, I.

    1988-01-01

    The American Nuclear Society's (ANS's) International Student Exchange Program sponsors bilateral exchanges of students form graduate schools in American universities with students from graduate schools in France, the Federal Republic of Germany (FRG), and Japan. The program, now in its 12th year, was initiated in response to an inquiry to Argonne National Laboratory (ANL) from the director of the Centre d'Etudes Nucleaires de Saclay proposing to send French nuclear engineering students to the United States for summer jobs. The laboratory was asked to accept two students to work on some nuclear technology activity and ANS was invited to send American students to France on an exchange basis. To date, 200 students have taken part in the program. It has been a maturing and enriching experience for them, and many strong and enduring friendships have been fostered among the participants, many of whom will become future leaders in their countries

  12. Evaluación del Programa de Intercambio de Jeringuillas en el Centro Penitenciario de Pereiro de Aguiar (Ourense: diez años de experiencia Evaluation of needle exchange program at Pereiro de Aguiar prison (Ourense, Spain: ten years of experience

    Directory of Open Access Journals (Sweden)

    V. Ferrer-Castro

    2012-06-01

    Full Text Available Objetivos: Evaluar la eficacia de un programa de intercambio de jeringuillas (PIJ en una prisión para reducir la prevalencia de infecciones asociadas al uso de drogas intravenosas, y conocer la aceptación del programa por internos y funcionarios del centro penitenciario. Material y métodos: Estudio observacional con cortes transversales al inicio, 6 y 12 meses y 10 años de desarrollo del programa. Se realizaron entrevistas a los usuarios del programa y encuestas a muestras accidentales de funcionarios en los distintos cortes, y a una muestra aleatoria de internos a los 10 años. Se registraron diariamente los indicadores de actividad del programa, y se valoró la prevalencia de infección por VIH, hepatitis B y C al inicio y a los 10 años. Para el análisis estadístico utilizamos la prueba ji-cuadrado con la corrección de Yates en caso necesario. Resultados: Durante estos diez años se suministraron 15.962 jeringuillas a 429 usuarios (media de 20,2 usuarios/mes, recuperándose 11.327 (70,9%. La prevalencia de infección por VIH pasó del 21% en 1999 al 8,5% en 2009, la de VHC del 40% al 26,1% (pObjectives: To evaluate the effectiveness of NEPs in prison to reduce the prevalence of infections associated with intravenous drug use and to know more about acceptance of the program by inmates and staff. Material and methods: cross-sectional observational study at baseline, 6 and 12 months and 10 years of program development. Interviews were conducted with program users, as well as random sample surveys of officials at the various cuts, and a random sample of inmates from the centre after10 years. Activity indicators of the program were recorded continuously, and the prevalence of HIV, HBV and HCV at baseline and after 10 years was evaluated. For the statistical analysis, the chi-square test was used with the Yates correction when necessary. Results: In ten years we have supplied a total of 15,962 syringes to 429 users, (average 20.2 users

  13. Calorimetry exchange program. Quarterly data report, 2nd quarter 1992

    Energy Technology Data Exchange (ETDEWEB)

    Barnett, T.M.

    1996-07-01

    The goals of the Calorimetry Sample Exchange Program are: (1) Discuss measurement differences, (2) Review and improve analytical measurements and methods, (3) Discuss new measurement capabilities, (4) Provide data to DOE on measurement capabilities to evaluate shipper-receiver differences, (5) Provide characterized or standard materials as necessary for exchange participants, (6) Provide a measurement control program for plutonium analysis. A sample of PuO{sub 2} powder is available at each participating site for NDA measurement, including either or both calorimetry and high-resolution gamma-ray spectroscopy, the elements which are typically combined to provide a calorimetric assay of plutonium. The facilities measure the sample as frequently and to the level of precision which they desire, and then submit the data to the Exchange for analysis. Statistical tests are used to evaluate the data and to determine if there are significant differences from accepted values for the exchange sample or from data previously reported by that facility. This information is presented, in the form of a quarterly report, intended for use by Exchange participants in measurement control programs, or to indicate when bias corrections may be appropriate. No, attempt, however, has been made to standardize methods or frequency of data collection, calibration, or operating procedures. Direct comparisons between laboratories may, therefore, be misleading since data have not been collected to the same precision or for the same time periods. A meeting of the participants of the Calorimetry Exchange is held annually at EG&G Mound Applied Technologies. The purposes of this meeting are to discuss measurement differences, problems, and new measurement capabilities, and to determine the additional activities needed to fulfill the goals of the Exchange.

  14. Calorimetry exchange program annual data report for 1992

    International Nuclear Information System (INIS)

    Barnett, T.M.

    1992-01-01

    The goals of the Calorimetry Sample Exchange Program are: discuss measurement differences; review and improve analytical measurements and methods; discuss new measurement capabilities; provide data to DOE on measurement capabilities to evaluate shipper-receiver differences; provide characterized or standard materials as necessary for exchange participants; and provide a measurement control program for plutonium analysis. A sample of PuO 2 powder is available at each participating site for NDA measurement, including either or both calorimetry and high-resolution gamma-ray spectroscopy, the elements which are typically combined to provide a calorimetric assay of plutonium. The facilities measure the sample as frequently and to the level of precision which they desire, and then submit the data to the Exchange for analysis. The data report includes summary tables for each measurement and charts showing the performance of each laboratory. Comparisons are made to the accepted values for the exchange sample and to data previously reported by that laboratory. This information is presented, in the form of quarterly and annual reports, intended for use by Exchange participants in measurement control programs, or to indicate when bias corrections may be appropriate. No attempt, however, has been made to standardize methods or frequency of data collection, calibration, or operating procedures. Direct comparisons between laboratories may, therefore, be misleading since data have not been collected to the same precision or for the same time periods. A meeting of the participants of the Calorimetry Exchange is held annually at EG ampersand G Mound Applied Technologies. The purposes of this meeting are to discuss measurement differences, problems, and new measurement capabilities, and to determine the additional activities needed to fulfill the goals of the Exchange. This document provides data for 1992

  15. 76 FR 17027 - Exchange Visitor Program-Fees and Charges

    Science.gov (United States)

    2011-03-28

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF STATE 22 CFR Part 62 RIN 1400-AC67 Exchange Visitor Program--Fees and Charges Correction In rule document 2011-4276, appearing on pages 10498-10500 in the issue of Friday, February 25, 2011, make the following correction: On...

  16. 76 FR 10498 - Exchange Visitor Program-Fees and Charges

    Science.gov (United States)

    2011-02-25

    ... its consistency with the regulatory philosophy and principles set forth in that Executive Order. The... integral component of American foreign policy. Though the benefits of these exchanges to the United States... program and is essential to continuing to support and strengthen the United States' foreign policy goal of...

  17. 75 FR 32235 - Exchange Visitor Program-Secondary School Students

    Science.gov (United States)

    2010-06-07

    ... regarding the screening, selection, school enrollment, orientation, and monitoring of student participants... DEPARTMENT OF STATE [Public Notice: 7036] Exchange Visitor Program--Secondary School Students... amendments to the secondary school student regulatory provisions published in the Federal Register on May 3...

  18. Advocacy and coverage of needle exchange programs: results of a comparative study of harm reduction programs in Brazil, Bangladesh, Belarus, Ukraine, Russian Federation, and China Advocacy e cobertura de projetos de troca de agulhas: resultados de um estudo comparativo sobre programas de redução de danos no Brasil, Bangladesh, Belarus, Ucrânia, Federação Russa e China

    Directory of Open Access Journals (Sweden)

    Dave Burrows

    2006-04-01

    Full Text Available To prevent or mitigate an AIDS epidemic among injecting drug users (IDUs, effective activities need to be implemented on a large enough scale to reach and assist sufficient numbers of drug users and thereby change their risk behaviors related to drug use and sex. Recent work by UNAIDS on "high coverage sites", adopting the above strategies, has shown that one of the key elements in achieving high coverage is ongoing and sophisticated advocacy. High coverage harm reduction sites were studied through literature search and site visits, including key informant interviews, review of service statistics, and data analysis, in order to document the steps that led to scaling up, the way coverage was defined in these sites, and the lessons learned from their efforts. Syringe-exchange programs can achieve high coverage of IDUs. Monitoring to determine regular reach (those who are in regular contact with harm reduction services should be added to uniform data collection carried out by harm reduction programs. Advocacy is crucial to achieving high coverage.Para prevenir ou mitigar uma epidemia de AIDS entre usuários de drogas injetáveis (UDI, atividades eficazes devem ser implementadas numa escala suficiente para atingir e ajudar um número suficiente de usuários e, portanto, modificar seus comportamentos de risco em relação ao uso de drogas e práticas sexuais. Um estudo recente do UNAIDS sobre "locais de cobertura alta", ao adotar as estratégias propostas acima, demonstrou que um dos elementos centrais para atingir uma cobertura alta é a advocacy permanente e bem-elaborada. Locais de redução de danos que apresentavam altas taxas de cobertura foram estudados através de uma revisão bibliográfica e visitas aos locais de maior cobertura, incluindo entrevistas com informantes principais, revisão de dados estatísticos dos serviços e análise de dados para poder documentar os passos que levaram à ampliação do alcance dos projetos, à defini

  19. 76 FR 10038 - Determination That a Demonstration Needle Exchange Program Would be Effective in Reducing Drug...

    Science.gov (United States)

    2011-02-23

    ... Would be Effective in Reducing Drug Abuse and the Risk of Acquired Immune Deficiency Syndrome Infection... infection with the etiologic agent for acquired immune deficiency syndrome. This determination reflects the... Grant funds for SSPs. FOR FURTHER INFORMATION CONTACT: Substance Abuse and Mental Health Services...

  20. Plutonium metal exchange program : current status and statistical analysis

    Energy Technology Data Exchange (ETDEWEB)

    Tandon, L. (Lav); Eglin, J. L. (Judith Lynn); Michalak, S. E. (Sarah E.); Picard, R. R.; Temer, D. J. (Donald J.)

    2004-01-01

    The Rocky Flats Plutonium (Pu) Metal Sample Exchange program was conducted to insure the quality and intercomparability of measurements such as Pu assay, Pu isotopics, and impurity analyses. The Rocky Flats program was discontinued in 1989 after more than 30 years. In 2001, Los Alamos National Laboratory (LANL) reestablished the Pu Metal Exchange program. In addition to the Atomic Weapons Establishment (AWE) at Aldermaston, six Department of Energy (DOE) facilities Argonne East, Argonne West, Livermore, Los Alamos, New Brunswick Laboratory, and Savannah River are currently participating in the program. Plutonium metal samples are prepared and distributed to the sites for destructive measurements to determine elemental concentration, isotopic abundance, and both metallic and nonmetallic impurity levels. The program provides independent verification of analytical measurement capabilies for each participating facility and allows problems in analytical methods to be identified. The current status of the program will be discussed with emphasis on the unique statistical analysis and modeling of the data developed for the program. The discussion includes the definition of the consensus values for each analyte (in the presence and absence of anomalous values and/or censored values), and interesting features of the data and the results.

  1. Heat exchanger performance analysis programs for the personal computer

    International Nuclear Information System (INIS)

    Putman, R.E.

    1992-01-01

    Numerous utility industry heat exchange calculations are repetitive and thus lend themselves to being performed on a Personal Computer. These programs may be regarded as engineering tools which, when put together, can form a Toolbox. However, the practicing Results Engineer in the utility industry desires not only programs that are robust as well as easy to use but can also be used both on desktop and laptop PC's. The latter also offer the opportunity to take the computer into the plant or control room, and use it there to process test or operating data right on the spot. Most programs evolve through the needs which arise in the course of day-to-day work. This paper describes several of the more useful programs of this type and outlines some of the guidelines to be followed when designing personal computer programs for use by the practicing Results Engineer

  2. Controlling mercury spills in laboratories with a thermometer exchange program

    Energy Technology Data Exchange (ETDEWEB)

    McLouth, Lawrence D.

    2002-03-25

    This paper presents a case for replacing mercury thermometers with their organic-liquid-filled counterparts. A review of liquid-in glass-thermometers is given. In addition, a brief summary of mercury's health effects and exposure limits is presented. Spill cleanup methods and some lessons learned from our experience are offered as well. Finally, an overview of the mercury thermometer exchange program developed at Lawrence Berkeley National Laboratory is presented.

  3. Faculty-Exchange Programs Promoting Change: Motivations, Experiences, and Influence of Participants in the Carnegie Mellon University-Portugal Faculty Exchange Program

    Science.gov (United States)

    Patrício, Maria Teresa; Santos, Patrícia; Loureiro, Paulo Maia; Horta, Hugo

    2018-01-01

    The international mobility of faculty is increasing worldwide. Although studies have considered the experiences of academics abroad, less is known about faculty-exchange programs with policy objectives. This study helps to fill this gap by analyzing a nationwide structured faculty exchange program established by Carnegie Mellon University and…

  4. 22 CFR Appendix C to Part 62 - Update of Information on Exchange-Visitor Program Sponsor

    Science.gov (United States)

    2010-04-01

    ... 22 Foreign Relations 1 2010-04-01 2010-04-01 false Update of Information on Exchange-Visitor Program Sponsor C Appendix C to Part 62 Foreign Relations DEPARTMENT OF STATE PUBLIC DIPLOMACY AND... Cultural Exchange. 9. ( ) Cancel the above named Exchange Visitor Program. (Signature of Responsible or...

  5. VHTR engineering design study: intermediate heat exchanger program. Final report

    Energy Technology Data Exchange (ETDEWEB)

    None

    1976-11-01

    The work reported is the result of a follow-on program to earlier Very High Temperature Reactor (VHTR) studies. The primary use of the VHTR is to provide heat for various industrial processes, such as hydrocarbon reforming and coal gasification. For many processes the use of an intermediate heat transfer barrier between the reactor coolant and the process is desirable; for some processes it is mandatory. Various intermediate heat exchanger (IHX) concepts for the VHTR were investigated with respect to safety, cost, and engineering design considerations. The reference processes chosen were steam-hydrocarbon reforming, with emphasis on the chemical heat pipe, and steam gasification of coal. The study investigates the critically important area of heat transfer between the reactor coolant, helium, and the various chemical processes.

  6. VHTR engineering design study: intermediate heat exchanger program. Final report

    International Nuclear Information System (INIS)

    1976-11-01

    The work reported is the result of a follow-on program to earlier Very High Temperature Reactor (VHTR) studies. The primary use of the VHTR is to provide heat for various industrial processes, such as hydrocarbon reforming and coal gasification. For many processes the use of an intermediate heat transfer barrier between the reactor coolant and the process is desirable; for some processes it is mandatory. Various intermediate heat exchanger (IHX) concepts for the VHTR were investigated with respect to safety, cost, and engineering design considerations. The reference processes chosen were steam-hydrocarbon reforming, with emphasis on the chemical heat pipe, and steam gasification of coal. The study investigates the critically important area of heat transfer between the reactor coolant, helium, and the various chemical processes

  7. 77 FR 36916 - Pilot Program for the Temporary Exchange of Information Technology Personnel

    Science.gov (United States)

    2012-06-20

    ... 0790-AI66 Pilot Program for the Temporary Exchange of Information Technology Personnel AGENCY... the Temporary Exchange of Information Technology Personnel, known as the Information Technology... Exchange of Information Technology (IT) Personnel. This statute authorizes the temporary assignment of DoD...

  8. Effectiveness of Inclusion of Dry Needling in a Multimodal Therapy Program for Patellofemoral Pain: A Randomized Parallel-Group Trial.

    Science.gov (United States)

    Espí-López, Gemma V; Serra-Añó, Pilar; Vicent-Ferrando, Juan; Sánchez-Moreno-Giner, Miguel; Arias-Buría, Jose L; Cleland, Joshua; Fernández-de-Las-Peñas, César

    2017-06-01

    Study Design Randomized controlled trial. Background Evidence suggests that multimodal interventions that include exercise therapy may be effective for patellofemoral pain (PFP); however, no study has investigated the effects of trigger point (TrP) dry needling (DN) in people with PFP. Objectives To compare the effects of adding TrP DN to a manual therapy and exercise program on pain, function, and disability in individuals with PFP. Methods Individuals with PFP (n = 60) recruited from a public hospital in Valencia, Spain were randomly allocated to manual therapy and exercises (n = 30) or manual therapy and exercise plus TrP DN (n = 30). Both groups received the same manual therapy and strengthening exercise program for 3 sessions (once a week for 3 weeks), and 1 group also received TrP DN to active TrPs within the vastus medialis and vastus lateralis muscles. The pain subscale of the Knee injury and Osteoarthritis Outcome Score (KOOS; 0-100 scale) was used as the primary outcome. Secondary outcomes included other subscales of the KOOS, the Knee Society Score, the International Knee Documentation Committee Subjective Knee Evaluation Form (IKDC), and the numeric pain-rating scale. Patients were assessed at baseline and at 15-day (posttreatment) and 3-month follow-ups. Analysis was conducted with mixed analyses of covariance, adjusted for baseline scores. Results At 3 months, 58 subjects (97%) completed the follow-up. No significant between-group differences (all, P>.391) were observed for any outcome: KOOS pain subscale mean difference, -2.1 (95% confidence interval [CI]: -4.6, 0.4); IKDC mean difference, 2.3 (95% CI: -0.1, 4.7); knee pain intensity mean difference, 0.3 (95% CI: -0.2, 0.8). Both groups experienced similar moderate-to-large within-group improvements in all outcomes (standardized mean differences of 0.6 to 1.1); however, only the KOOS function in sport and recreation subscale surpassed the prespecified minimum important change. Conclusion The current

  9. 29 gauge needles improve patient satisfaction over 27 gauge needles for daily glatiramer acetate injections

    Directory of Open Access Journals (Sweden)

    Stephen Glenski

    2009-12-01

    Full Text Available Stephen Glenski, Jill ConnerMedical Affairs – Teva Neuroscience, Kansas City, MO, USAAbstract: Using three surveys, a comparative assessment of needle performance and patient preference for 27-gauge (G and 29G needles for glatiramer acetate administration for multiple sclerosis therapy was performed. Eligible patients participated in a specialty pharmacy program and administered glatiramer acetate for ≥1 month. In Survey 1 on the 27G needle, 545 (82.70% patients reported no needle problems, 106 (16.09% cited one type (dull, bent, or broken, five (0.76% cited two types, and three (0.46% cited all three types. In Survey 2 on the 29G needle, 553 (98.05% indicated no problems, two (0.35% cited dull needles, and nine (1.60% cited bent needles. On the 29G needles versus 27G needles pain comparison, 219 (38.83% reported the 29G needle was a little better, and 155 (27.48% reported it was a lot better than the 27G. For injection-site experiences, 515 patients (91.31% reported no, very slight, or mild reactions with the 29G needle. In Survey 3, over 76% of patients preferred the 29G to the 27G needle and significantly fewer patients reported one or more problems with the 29G needle compared to patients reporting problems with the 27G needle (P < 0.00001. In conclusion, significantly fewer patients reported problems after 30 days of use of the 29G than the 27G needle. Fewer injectionsite experiences occurred with the 29G needle and the 29G needle was preferred overall.Keywords: 29 gauge needle, subcutaneous injection, glatiramer acetate

  10. Needle autopsy

    OpenAIRE

    Philip Davis Marsden

    1997-01-01

    Often in tropical practice there is not time or conditions to do a proper autopsy on a patient who has died. A needle biopsy technique is described for limited closed autopsy examination to clariffy organ histology. In this way the clinician may resolve puzzling fatal disease.Muitas vezes, em clínicas de países tropicais, não há tempo nem condições para se realizar uma necropsia adequada em um paciente que foi a óbito. Um técnica de biópsia por punção é descrita para fins de exame em necropsi...

  11. 75 FR 77753 - Pilot Program for the Temporary Exchange of Information Technology Personnel

    Science.gov (United States)

    2010-12-14

    ... Part 241 Pilot Program for the Temporary Exchange of Information Technology Personnel AGENCY... Program for the Temporary Exchange of Information Technology (IT) Personnel. This statute authorizes the... Information Technology Personnel,'' to implement the Pilot authorized by Section 1110. This Pilot will be...

  12. Health Information Exchange to Support a Prescription Drug Monitoring Program

    Directory of Open Access Journals (Sweden)

    Gary L. Cochran

    2015-01-01

    Full Text Available Objective: To describe barriers to the utilization of a query based Health Information Exchange (HIE that supports a statewide Prescription Drug Monitoring Program (PDMP. Methods: Emergency room (ER prescribers were surveyed bi-weekly and at the end of a four-month study to estimate HIE/PDMP utilization and identify barriers to utilization. Results: Self-reported utilization from seventeen providers in three emergency rooms was very low. Providers estimated that prescription history was rarely available when queried. Problem lists and laboratory reports were estimated to be available 60% of the time. Discussion: Barriers to HIE utilization for PDMP purposes included prescribers not finding the information they queried and lack of integration into clinical workflow. Low perceived need for PDMP and prescriber preparedness to manage abusers may also have reduced utilization. Recommendation: Financial and human resources must be available for training and integration of a HIE based PDMP into the ER's clinical workflow. Minimizing information gaps is also necessary to increase utilization.   Type: Case Study

  13. Needle autopsy

    Directory of Open Access Journals (Sweden)

    Philip Davis Marsden

    1997-04-01

    Full Text Available Often in tropical practice there is not time or conditions to do a proper autopsy on a patient who has died. A needle biopsy technique is described for limited closed autopsy examination to clariffy organ histology. In this way the clinician may resolve puzzling fatal disease.Muitas vezes, em clínicas de países tropicais, não há tempo nem condições para se realizar uma necropsia adequada em um paciente que foi a óbito. Um técnica de biópsia por punção é descrita para fins de exame em necropsia limitadamente fechada, para esclarecimento da histologia do órgão. Dessa maneira, o clínico pode resolver enigmas de doenças fatais.

  14. Students seeking technical internships as part of an exchange program

    OpenAIRE

    Nystrom, Lynn A.

    2004-01-01

    Virginia Tech students are seeking the support of research centers, academic departments, and area businesses to provide opportunities for technical internships through the International Association for the Exchange of Students for Technical Experience (IAESTE).

  15. Optimal training for emergency needle thoracostomy placement by prehospital personnel: didactic teaching versus a cadaver-based training program.

    Science.gov (United States)

    Grabo, Daniel; Inaba, Kenji; Hammer, Peter; Karamanos, Efstathios; Skiada, Dimitra; Martin, Matthew; Sullivan, Maura; Demetriades, Demetrios

    2014-09-01

    Tension pneumothorax can rapidly progress to cardiac arrest and death if not promptly recognized and appropriately treated. We sought to evaluate the effectiveness of traditional didactic slide-based lectures (SBLs) as compared with fresh tissue cadaver-based training (CBT) for placement of needle thoracostomy (NT). Forty randomly selected US Navy corpsmen were recruited to participate from incoming classes of the Navy Trauma Training Center at the LAC + USC Medical Center and were then randomized to one of two NT teaching methods. The following outcomes were compared between the two study arms: (1) time required to perform the procedure, (2) correct placement of the needle, and (3) magnitude of deviation from the correct position. During the study period, a total of 40 corpsmen were enrolled, 20 randomized to SBL and 20 to CBT arms. When outcomes were analyzed, time required to NT placement was not different between the two arms. Examination of the location of needle placement revealed marked differences between the two study groups. Only a minority of the SBL group (35%) placed the NT correctly in the second intercostal space. In comparison, the majority of corpsmen assigned to the CBT group demonstrated accurate placement in the second intercostal space (75%). In a CBT module, US Navy corpsmen were better trained to place NT accurately than their traditional didactic SBL counterparts. Further studies are indicated to identify the optimal components of effective simulation training for NT and other emergent interventions.

  16. Fostering internationalization: an American-Danish semester-long undergraduate nursing student exchange program.

    Science.gov (United States)

    Baernholdt, M; Drake, E; Maron, F; Neymark, K

    2013-06-01

    This paper describes the development, implementation and evaluation of a semester-long exchange program between two Bachelor of Science in Nursing programs in the USA and Denmark. Nurses globally need to provide culturally sensitive care for an ethnically diverse population. Competencies on how to do so should start in basic nursing programs. A useful strategy is through immersion into another culture through an exchange program. Little is known about successful strategies for two-way or 360° exchange programs between schools from different countries. Guided by experiential learning theory, we developed an exchange program with the objective of enhancing nursing students' cultural competence through knowledge building, attitudes and behaviour development. Lessons learned and implications for educational institutions and policy are discussed. In internationalization of nursing education, an awareness of underlying cultural values regarding nursing competence and taking appropriate action are important for success. Other areas for a successful exchange program include matching of courses or content across schools, clear objectives and evaluation plans. Finally, flexibility and open communication are key components when setting up a 360° exchange program. © 2013 The Authors. International Nursing Review © 2013 International Council of Nurses.

  17. The Application of One-Hour Static Qigong Program to Decrease Needle Pain of Korean Adolescents With Type 1 Diabetes: A Randomized Crossover Design.

    Science.gov (United States)

    Kim, Euiyeon; Lee, Ji-Eun; Sohn, Min

    2017-10-01

    The aim of this study was to describe application of a static Qigong program to decrease needle pain in Korean adolescents with type 1 diabetes and its pilot test results. The pilot study was a randomized crossover design including 26 adolescents randomized to Qigong or rest group. Participants received a 60-minute Qigong program consisted of warm up, deep breathing, imaginary, and a closing warm up. After 24-hour washout period, treatment assignments were switched. We collected before and after intervention using a self-administered questionnaire, which included the faces pain scale to assess expected and perceived pain during blood sugar testing and insulin injection and the Positive and Negative Affect Schedule. Only expected pain on insulin injection was significantly lower after intervention ( P = .025). The results suggested that the devised static Qigong program was feasible intervention to decrease at least expected pain on insulin injection of adolescents with type 1 diabetes.

  18. West Virginia peer exchange : streamlining highway safety improvement program project delivery.

    Science.gov (United States)

    2015-01-01

    The West Virginia Division of Highways (WV DOH) hosted a Peer Exchange to share information and experiences : for streamlining Highway Safety Improvement Program (HSIP) project delivery. The event was held September : 22 to 23, 2014 in Charleston, We...

  19. Promoting medical competencies through international exchange programs: benefits on communication and effective doctor-patient relationships.

    Science.gov (United States)

    Jacobs, Fabian; Stegmann, Karsten; Siebeck, Matthias

    2014-03-04

    Universities are increasingly organizing international exchange programs to meet the requirements of growing globalisation in the field of health care. Analyses based on the programs' fundamental theoretical background are needed to confirm the learning value for participants. This study investigated the extent of sociocultural learning in an exchange program and how sociocultural learning affects the acquisition of domain-specific competencies. Sociocultural learning theories were applied to study the learning effect for German medical students from the LMU Munich, Munich, Germany, of participation in the medical exchange program with Jimma University, Jimma, Ethiopia. First, we performed a qualitative study consisting of interviews with five of the first program participants. The results were used to develop a questionnaire for the subsequent, quantitative study, in which 29 program participants and 23 matched controls performed self-assessments of competencies as defined in the Tuning Project for Health Professionals. The two interrelated studies were combined to answer three different research questions. The participants rated their competence significantly higher than the control group in the fields of doctor-patient relationships and communication in a medical context. Participant responses in the two interrelated studies supported the link between the findings and the suggested theoretical background. Overall, we found that the exchange program affected the areas of doctor-patient relationships and effective communication in a medical context. Vygotsky's sociocultural learning theory contributed to explaining the learning mechanisms of the exchange program.

  20. A Multi-Center Randomized Controlled Trial of Adding Brief Skill-Based Psychoeducation to Primary Needle and Syringe Programs to prevent Human Immunodeficiency Virus: Study Protocol.

    Directory of Open Access Journals (Sweden)

    Morteza Naserbakht

    2014-09-01

    Full Text Available Our objective was to design an RCT in order to assess the effects of adding a brief skill-based psychoeducation (PE to routine Needle and Syringe Programs to reduce injection and high risk sexual behaviors associated with Human Immunodeficiency Virus (HIV infection among referrals of Drop-in Centers (DICs.This was a randomized control trial with the primary hypothesis that adding skill-based PE to the routine needle syringe program (NSP provided in the DICs would be more effective in reducing injection and high risk sexual behaviors associated with HIV infection compared to the routine programs. We intended to randomly allocate 60 patients per group after obtaining informed written consent,. The intervention group receive a combination of brief psychoeducation consisting two individual sessions of skill-based education concerning blood borne viral infection, specifically HIV. The control group received the routine primary NSP services provided in DIC. Study assessments were undertaken by a psychologist at baseline, 1 and 3 months after recruitment. The primary outcome measure was the comparison of the trend of alterations in high risk sexual and injection behaviors associated with HIV infection during 3 months after the initiation of the intervention between the two groups. Secondary outcome measures included the comparison of HIV/AIDS related knowledge and client satisfaction in the participants.This paper presents a protocol for an RCT of brief skill-based PE by a trained psychologist to reduce the sexual and injection related high risk behaviors among drug users who received primary NSP services in DIC. This trial tried to investigate the efficacy of the intervention on increasing HIV/AIDS related knowledge and client satisfaction. The results of different indicators of high risk behaviors will be discussed.

  1. Teacher Candidates' Opinions on Erasmus Student Exchange Program

    Science.gov (United States)

    Unlu, Ihsan

    2015-01-01

    This study contains teacher candidates' opinions who spent a portion of their educational career abroad as participants in the Erasmus Program regarding the academic, cultural, and personal gains of the program. Using the Quantitative Research Method, this study focuses on phenomena that researchers are aware of, but on which they do not have…

  2. The information exchange between moduluses in the system of module programming of the computation complexes

    International Nuclear Information System (INIS)

    Zinin, A.I.; Kolesov, V.E.; Nevinitsa, A.I.

    1975-01-01

    The report contains description of the method of construction of computer programs complexes for computation purposes for M-220 computers using the ALGOL-60 code for programming. The complex is organised on the modulus system principle and can include substantial number of modulus programs. The information exchange between separate moduli is done by means of special interpreting program and the information unit exchanged is a specially arranged file of data. For addressing to the interpreting program in the ALGOL-60 frameworks small number of specially created procedure-codes is used. The method proposed gives possibilities to program separate moduli of the complex independently and to expand the complex if necessary. In this case separate moduli or groups of moduli depending on the method of segmentation of the general problem solved by the complex will be of the independent interest and could be used out of the complex as traditional programs. (author)

  3. ProFormA: An XML-based exchange format for programming tasks

    Directory of Open Access Journals (Sweden)

    Sven Strickroth

    2015-11-01

    Full Text Available Support systems for programming education are in widespread use. However common standards for the exchange of general (learning content and tests do not meet the special requirements of programming tasks, e.g. dealing with complex submissions consisting of multiple files or the combination of different (automatic evaluation and assessment procedures. Thus, due to missing interoperability, programming tasks cannot be exchanged between systems easily despite the fact that this would be desirable due to the high cost of the development of good tasks. In this paper, an extensible XML-based format for the exchange of programming tasks is presented, which is already used in multiple systems. The XML-format is available on-line [PFMA].

  4. Decomposition of Economic Inequality in Needle and Syringe Programs Utilization to its Determinants among Men Who Inject Drugs in Tehran using Blinder-Oaxaca Decomposition Method.

    Science.gov (United States)

    Noroozi, Mehdi; Rahimi, Ebrahim; Ghisvand, Hessam; Qorbani, Mostafa; Sharifi, Hamid; Noroozi, Alireza; Farhoudian, Ali; Marshall, Brandon D L; Jorjoran Shoshtari, Zahra; Karimi, Salah Eddin; Rezaei, Omid; Armoon, Bahram

    2017-11-22

    According to latest available data there are more of 300,000 people injects drug users (PWID) in Iran. In this study, we used a Blinder-Oaxaca (BO) decomposition to explore the relative contributions of inequality in utilization of NSPs and to decompose it to its determinants in Teheran. We used data from a cross-sectional survey using snowball sampling to recruit 500 PWID from June to July 2016 in Tehran. Participants were reported injecting drug use in the past month, were able to speak and comprehend Farsi enough to respond to survey questions, and were able to provide informed consent to complete the interview. We used a BO method to decompose the role of economic inequality on utilization of needle and syringe programs. A total 520 of clients participated in the study of which data was fully complete for 500. The selected predictor variables (age, education level, marital status, homelessness, HIV risk perception, and HIV knowledge) together explain 54% (8.5% out of 16%) of total inequality in utilization of needle and syringe programs and the remaining 46% constitute the unexplained residual. HIV risk perception status contributed about 38% (3.3% out of 8.5%) to the total health inequality, followed by HIV knowledge (26%) and education level were contributed 20% each, respectively. The results showed that contribution of economic inequalities in utilization of NSPs was primarily explained by the differential effects of HIV risk perception and HIV knowledge among PWID. Reducing HIV risk perception and increasing HIV knowledge might be essential to efforts to eliminate inequalities in access to NSPs among PWID.

  5. Efficient separations and processing crosscutting program 1996 technical exchange meeting. Proceedings

    International Nuclear Information System (INIS)

    1996-01-01

    This document contains summaries of technology development presented at the 1996 Efficient Separations and Processing Crosscutting Program Technical Exchange Meeting. This meeting is held annually to promote a free exchange of ideas among technology developers, potential users and other interested parties within the EM community. During this meeting the following many separation processes technologies were discussed such as ion exchange, membrane separation, vacuum distillation, selective sorption, and solvent extraction. Other topics discussed include: waste forms; testing or inorganic sorbents for radionuclide and heavy metal removal; selective crystallization; and electrochemical treatment of liquid wastes. This is the leading abstract, individual papers have been indexed separately for the databases

  6. Efficient separations and processing crosscutting program 1996 technical exchange meeting. Proceedings

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1996-02-01

    This document contains summaries of technology development presented at the 1996 Efficient Separations and Processing Crosscutting Program Technical Exchange Meeting. This meeting is held annually to promote a free exchange of ideas among technology developers, potential users and other interested parties within the EM community. During this meeting the following many separation processes technologies were discussed such as ion exchange, membrane separation, vacuum distillation, selective sorption, and solvent extraction. Other topics discussed include: waste forms; testing or inorganic sorbents for radionuclide and heavy metal removal; selective crystallization; and electrochemical treatment of liquid wastes. This is the leading abstract, individual papers have been indexed separately for the databases.

  7. 77 FR 27593 - Exchange Visitor Program-Summer Work Travel

    Science.gov (United States)

    2012-05-11

    ...--Summer Work Travel AGENCY: Department of State. ACTION: Interim final rule with request for comment... comment on April 26, 2011) (2011 IFR) to amend the regulatory requirements of the Summer Work Travel... regulations to both further to protect the health, safety, and welfare of Summer Work Travel Program...

  8. Inclusion of trigger point dry needling in a multimodal physical therapy program for postoperative shoulder pain: a randomized clinical trial.

    Science.gov (United States)

    Arias-Buría, José L; Valero-Alcaide, Raquel; Cleland, Joshua Aland; Salom-Moreno, Jaime; Ortega-Santiago, Ricardo; Atín-Arratibel, María A; Fernández-de-las-Peñas, César

    2015-01-01

    The purpose of this study was to evaluate the effects of including 1 session of trigger point dry needling (TrP-DN) into a multimodal physiotherapy treatment on pain and function in postoperative shoulder pain. Twenty patients (5 male; 15 female; age, 58 ± 12 years) with postoperative shoulder pain after either open reduction and internal fixation with Proximal Humeral Internal Locking System plate plate or rotator cuff tear repair were randomly divided into 2 groups: physiotherapy group (n = 10) who received best evidence physical therapy interventions and a physical therapy plus TrP-DN group (n = 10) who received the same intervention plus a single session of TrP-DN targeted at active TrPs. The Constant-Murley score was used to determine pain, activities of daily living, range of motion, and strength, which was captured at baseline and 1 week after by an assessor blinded to group assignment. Analysis of variance showed that subjects receiving TrP-DN plus physical therapy exhibited greater improvement in the Constant-Murley total score (P physical therapy alone. Between-group effect sizes were large in favor of the TrP-DN group (0.97 physical therapy approach may assist with faster increases in function in individuals with postoperative shoulder pain. Copyright © 2015 National University of Health Sciences. Published by Elsevier Inc. All rights reserved.

  9. Finding Needles in a Haystack: A Methodology for Identifying and Sampling Community-Based Youth Smoking Cessation Programs

    Science.gov (United States)

    Emery, Sherry; Lee, Jungwha; Curry, Susan J.; Johnson, Tim; Sporer, Amy K.; Mermelstein, Robin; Flay, Brian; Warnecke, Richard

    2010-01-01

    Background: Surveys of community-based programs are difficult to conduct when there is virtually no information about the number or locations of the programs of interest. This article describes the methodology used by the Helping Young Smokers Quit (HYSQ) initiative to identify and profile community-based youth smoking cessation programs in the…

  10. Chilean Teachers Begin Exchange Program Visit in Magdalena

    Science.gov (United States)

    2007-01-01

    Two teachers from the town of San Pedro de Atacama, in the northern desert of the South American nation of Chile, arrive in Magdalena, New Mexico, Sunday, January 28, for a two-week visit that is part of a Sister Cities program sponsored by Associated Universities, Inc. (AUI), the nonprofit research corporation that operates the National Radio Astronomy Observatory (NRAO). They will be accompanied by their town's mayor. Myriam Nancy Rivera Mercado, Head of the high school in San Pedro, Gabriela Fernanda Rodriguez Moraleda, a tourism teacher there, and San Pedro Mayor Sandra Berna Martinez will begin a visit that includes classroom observations in the Magdalena schools, a reception hosted by the Magdalena Village Council, and a Mayor's Breakfast with Magdalena Mayor Jim Wolfe. They also will meet local residents, tour the Bosque del Apache National Wildlife Refuge with a second-grade class, visit an area ranch, tour the Very Large Array (VLA) radio telescope, and see Socorro's Community Arts Party. "These teachers will learn much about New Mexico, the United States, and our educational system, and will take this new knowledge back to their students and their community," said NRAO Education Officer Robyn Harrison. The visit is part of a Sister Cities program initiated and funded by AUI, which operates the NRAO for the U.S. National Science Foundation. Radio astronomy is a common link between San Pedro de Atacama and Magdalena. San Pedro is near the site of the Atacama Large Millimeter/submillimeter Array (ALMA), an international telescope project now under construction with funding by major partners in North America, Europe, and Japan. Magdalena is near the site of NRAO's VLA radio telescope. In Magdalena, the Village Council and Mayor Wolfe formalized their participation in the Sister Cities program last September, and San Pedro ratified the program in December. In San Pedro, the ceremony ratifying the agreement was attended by U.S. Ambassador to Chile Craig K

  11. THE EFFECT OF ERASMUS EXCHANGE PROGRAM ON ATTITUDES TOWARDS LEARNING ENGLISH FOREIGN LANGUAGE

    Directory of Open Access Journals (Sweden)

    Aylin GÜRLEK

    2016-04-01

    Full Text Available As a result of globalization the societies have got closer and there has occurred a link between countries and cultures in terms of trade, immigration and the exchange of information and ideas. Erasmus Exchange Program is another way of sharing cultures and information. Erasmus Exchange Program has paved the way for participants to think in different dimensions. Culture and language may be preferred as the selection of these dimensions. In this sense, sharing culture plays a major role among the objectives of Erasmus Program. In addition, culture may be represented with the use of EFL among the advantages of this program. Gardner (1985 states that the attitudes are important elements of learning process and suggests that the more positive attitudes a learner develop, the more achievement s/he gets during learning process. The study of Jenkins (2009 revealed that Erasmus Exchange Program helps participants to develop an appreciation towards the idea of being a non-native speaker of English in a multicultural environment. Put another way, English plays another major role and in this study the ultimate purpose has been determined to indicate changes in the attitudes of Erasmus Students at Kahramanmaraş Sütçü İmam University in Turkey towards learning EFL after Erasmus Exchange Program. 18 items in a questionnaire and a semi-structured interview have been conducted within the study. There are 65 participants in this study who studied in different European countries during an educational period. The results of the study indicate that living and studying in a multicultural environment either strengthened their already positive attitudes towards learning EFL or helped the participants to develop positive attitudes.

  12. The Inside-Out Prison Exchange Program: The Impact of Structure, Content, and Readings

    Science.gov (United States)

    Allred, Sarah L.

    2009-01-01

    This study examines qualitative and quantitative data from a fifteen-week experiential course held in a county jail. The course was modeled after the Inside-Out Prison Exchange Program, and included college students and people who were incarcerated at the time. Survey data and comments gleaned from student papers were used to assess the impact of…

  13. HIV Risk Behavior among Amphetamine Injectors at U.S. Syringe Exchange Programs

    Science.gov (United States)

    Braine, Naomi; Des Jarlais, Don C.; Goldblatt, Cullen; Zadoretzky, Cathy; Turner, Charles

    2005-01-01

    The goal of this study was to compare HIV risk behaviors of amphetamine and non-amphetamine injectors at syringe exchange programs (SEP) in the United States and to identify factors associated with injection risk. This analysis is based on data from a random cross-section of participants at 13 SEPs in different parts of the country. All interviews…

  14. Wine Is for Drinking, Water Is for Washing: Student Opinions about International Exchange Programs

    Science.gov (United States)

    Van Hoof, Hubert B.; Verbeeten, Marja J.

    2005-01-01

    This article reports on a study done among students who participated in student exchange programs, both in the United States and other parts of the world, between January 2001 and May 2003. Issues such as why students decide to study abroad, why they select a certain institution, how their home institution compares to a partner institution abroad,…

  15. Temno biopsy needle

    International Nuclear Information System (INIS)

    Quinn, S.F.; Demlow, T.; Dunkley, B.

    1991-01-01

    This paper reports on the Temno needle which is spring-activated biopsy needle that is being marketed to radiologists as a needle that can obtain histologic cores. One hundred fifteen biopsy procedures were performed; biopsy sites included liver; retroperitoneum; lung, mediastinum, and pleura; musculoskeletal structures; thyroid; abdominal and pelvic masses; and pancreas. The needle sizes included 21-gauge, 18-gauge, 16-gauge, and 14-gauge needles. The biopsy procedures were diagnostic in 87.8D% of cases, and the average biopsy specimen measured 1.0-40.0 mm. The biopsy diagnoses included both malignant and benign processes. The Temno needle has a lightweight, nonattenuating handle that makes it especially useful for CT-guided procedures

  16. [Intrapulmonary Sewing Needle].

    Science.gov (United States)

    Hisama, Naoya; Tsunemitsu, Nobumasa; Yasumasu, Tetsuo; Yamasaki, Takashi; Uchida, Takahisa

    2016-06-01

    Intrapulmonary aberrant needles are rarely encountered in clinical practice. A 82-year-old woman, though she was asymptomatic, was referred to our department due to an abnormal shadow on a chest X-ray. Chest X-ray and chest computed tomography showed a foreign body suspected to be a sewing needle in the left upper lobe. The needle was successfully removed by video-assisted thoracoscopic surgery.

  17. Educational Programs for Graduate Level Learners and Professionals - National Radio Astronomy Observatory National and International Non-Traditional Exchange Program

    Science.gov (United States)

    Wingate, Lory Mitchell

    2017-01-01

    The National Radio Astronomy Observatory’s (NRAO) National and International Non-Traditional Exchange (NINE) Program teaches concepts of project management and systems engineering to chosen participants within a nine-week program held at NRAO in New Mexico. Participants are typically graduate level students or professionals. Participation in the NINE Program is through a competitive process. The program includes a hands-on service project designed to increase the participants knowledge of radio astronomy. The approach demonstrate clearly to the learner the positive net effects of following methodical approaches to achieving optimal science results.The NINE teaches participants important sustainable skills associated with constructing, operating and maintaining radio astronomy observatories. NINE Program learners are expected to return to their host sites and implement the program in their own location as a NINE Hub. This requires forming a committed relationship (through a formal Letter of Agreement), establishing a site location, and developing a program that takes into consideration the needs of the community they represent. The anticipated outcome of this program is worldwide partnerships with fast growing radio astronomy communities designed to facilitate the exchange of staff and the mentoring of under-represented groups of learners, thereby developing a strong pipeline of global talent to construct, operate and maintain radio astronomy observatories.

  18. Improved transvenous liver biopsy needle

    DEFF Research Database (Denmark)

    Henriksen, Jens Henrik Sahl; Matzen, P; Christoffersen, P

    1979-01-01

    A modified type of the standard transvenous cholangiography biopsy needle is described. The modified tranvenous liver biopsy needle caused only minimal artefactual changes of the liver biopsy specimens. The new type of biopsy needle is a modified Menghini needle. The conventional Menghini needle...... should be avoided for transvenous catheter biopsies because of risk of leaving catheter fragments in the liver....

  19. The effect of on-site and outreach-based needle and syringe programs in people who inject drugs in Kermanshah, Iran.

    Science.gov (United States)

    Nazari, Seyed Saeed Hashemi; Noroozi, Mehdi; Soori, Hamid; Noroozi, Alireza; Mehrabi, Yadollah; Hajebi, Ahmad; Sharifi, Hamid; Higgs, Peter; Mirzazadeh, Ali

    2016-01-01

    Needle and syringe programs (NSPs) are widely used to reduce harms associated with drug injecting. This study assessed the effect of facility-based (on-site services at drop-in centre) and outreach models of NSP on injection risk behaviours. Self-reported data from 455 people who injected drugs (PWID) during 2014 in Kermanshah, Iran, were examined to measure demographic characteristics and risk behaviors. Self-reported and program data were also assessed to identify their main source of injection equipment. Participants were divided into three sub-groups: facility-based NSP users, outreach NSP users and non-users (comparison group). Coarsened exact matching was used to make the three groups statistically equivalent based on age, place of residence, education and income, and groups were compared regarding the proportion of borrowing or lending of syringes/cookers, reusing syringes and recent HIV testing. Overall, 76% of participants reported any NSP service use during the two months prior to interview. Only 23% (95%CI: 17-27) reported outreach NSP as their main source of syringes. Using facility-based NSP significantly decreased recent syringe borrowing (OR: 0.27, 95%CI: 0.10-0.70), recent syringe reuse (OR: 0.38, 95%CI: 0.23-0.68) and increased recent HIV testing (OR: 2.60, 95%CI: 1.48-4.56). Similar effects were observed among outreach NSP users; in addition, the outreach NSP model significantly reduced the chance of lending syringes (OR: 0.31, 95%CI: 0.15-0.60), compared to facility-based NSP (OR: 1.25, 95%CI: 0.74-2.17). These findings suggest that the outreach NSP model is as effective as facility-based NSP in reducing injection risk behaviours and increasing the rate of HIV testing. Outreach NSP was even more effective than facility-based in reducing the lending of syringes to others. Scaling up outreach NSP is an effective intervention to further reduce transmission of HIV via needle sharing. Copyright © 2015 Elsevier B.V. All rights reserved.

  20. Peer exchange, "strategic goals to manage research programs : building a premier research program".

    Science.gov (United States)

    2013-06-10

    The objectives of the District Department of Transportation (DDOT) Research, Development, & Technology Transfer (RDT) Branch Peer Exchange were: : 1. Receive peer input and perspective on RDT Strategic Plan. : 2. Obtain assistance in assessing validi...

  1. Effect of Needle Size in Ultrasound-guided Core Needle Breast Biopsy: Comparison of 14-, 16-, and 18-Gauge Needles.

    Science.gov (United States)

    Giuliani, Michela; Rinaldi, Pierluigi; Rella, Rossella; Fabrizi, Gina; Petta, Federica; Carlino, Giorgio; Di Leone, Alba; Mulè, Antonino; Bufi, Enida; Romani, Maurizio; Belli, Paolo; Bonomo, Lorenzo

    2017-11-01

    The aim of the present study was to assess the diagnostic accuracy of ultrasound-guided core needle biopsy (US-CNB) of breast lesions, comparing smaller needles (16- and 18-gauge) with the 14-gauge needle, and to analyze the lesion characteristics influencing US-CNB diagnostic performance. All the patients provided informed consent before the biopsy procedure. The data from breast lesions that had undergone US-CNB in our institution from January 2011 to January 2015 were retrospectively reviewed. The inclusion criterion was the surgical histopathologic examination findings of the entire lesion or radiologic follow-up data for ≥ 24 months. The exclusion criterion was the use of preoperative neoadjuvant therapy. The US-CNB results were compared with the surgical pathologic results or with the follow-up findings in the 3 needle size groups (14-, 16-, and 18-gauge). The needle size- and lesion characteristic-specific diagnostic accuracy parameters were evaluated. Statistical analysis was performed using a dedicated software program, and P ≤ .01 was considered significant. A total of 1118 US-CNB cases (1042 patients) were included. Of the 1118 cases, 630 (56.3%) were in the 14-gauge group, 136 (12.2%) in the 16-gauge, and 352 (31.5%) in the 18-gauge needle group. Surgery was performed on 800 lesions (71.6%). Of these, 619 were malignant, 77 were high risk, and 104 were benign. The remaining 318 lesions (28.4%) underwent follow-up imaging studies. All the lesions were stable and, therefore, were considered benign. No differences were observed in the diagnostic accuracy parameters among the 3 needle size groups (P > .01). The false-negative rate was greater for lesions gauges (P > .01). US-CNB performed with small needles (16 and 18 gauge) had the same diagnostic accuracy as that performed with 14-gauge needles, regardless of the lesion characteristics. Copyright © 2017 Elsevier Inc. All rights reserved.

  2. Scoping out the literature on mobile needle and syringe programs-review of service delivery and client characteristics, operation, utilization, referrals, and impact.

    Science.gov (United States)

    Strike, Carol; Miskovic, Miroslav

    2018-02-08

    Needle and syringe program (NSP) service delivery models encompass fixed sites, mobile services, vending machines, pharmacies, peer NSPs, street outreach, and inter-organizational agreements to add NSP services to other programs. For programs seeking to implement or improve mobile services, access to a synthesis of the evidence related to mobile services is beneficial, but lacking. We used a scoping study method to search MEDLINE, PSYCHInfo, Embase, Scopus, and Sociological for relevant literature. We identified 39 relevant manuscripts published between 1975 and November 2017 after removing duplicates and non-relevant manuscripts from the 1313 identified by the search. Charting of the data showed that these publications reported findings related to the service delivery model characteristics, client characteristics, service utilization, specialized interventions offered on mobile NSPs, linking clients to other services, and impact on injection risk behaviors. Mobile NSPs are implemented in high-, medium-, and low-income countries; provide equipment distribution and many other harm reduction services; face limitations to service complement, confidentiality, and duration of interactions imposed by physical space; adapt to changes in locations and types of drug use; attract people who engage in high-risk/intensity injection behavior and who are often not reached by other service models; and may lead to reduced injection-related risks. It is not clear from the literature reviewed, what are, or if there are, a "core and essential" complement of services that mobile NSPs should offer. Decisions about service complement for mobile NSPs need to be made in relation to the context and also other available services. Reports of client visits to mobile NSP provide a picture of the volume and frequency of utilization but are difficult to compare given varied measures and reference periods. Mobile NSPs have an important role to play in improving HIV and HCV prevention efforts

  3. Emphasizing Public Health Within a Health Information Exchange: An Evaluation of the District of Columbia's Health Information Exchange Program.

    Science.gov (United States)

    Goldwater, Jason; Jardim, Juliette; Khan, Tasnuva; Chan, Karen

    2014-01-01

    Clinovations Government Solutions (CGS) was contracted in 2013 to conduct a mixed-methods evaluation of the District of Columbia (D.C.) Health Information Exchange (HIE) program as part of their Cooperative Agreement Grant funded by the Office of the National Coordinator in 2010. The evaluation was to focus on the progress of the HIE, how many providers and hospitals were participating in the program, and what benefits were being realized through the use of the HIE. During the course of the evaluation, the CGS team found that the use of the HIE to support public health reporting was one of its core elements. The D.C. HIE is one of 56 HIE that were funded out of the Cooperative Agreement program. The HIE program was managed by the District of Columbia Department of Health Care Finance (DHCF), which also manages the District of Columbia Medicaid Program. The program was initially designed to accomplish the following: developing state-level directories and enabling technical services for HIE within and across states; ensuring an effective model for governance and accountability; coordinating an integrated approach with Medicaid and public health; and developing or updating privacy and security requirements for HIE within and across state borders. As the evaluation progressed, the CGS team discovered that the relationship between the DHCF and the District of Columbia Department of Health (DOH) had become a cornerstone of the D.C. HIE program. The CGS team used a mixed-methods approach for the evaluation, including a review of documents developed by the DHCF in its HIE program, including its original application. We also conducted 10 key informant interviews and moderated two small-group discussions using a semistructured protocol; and we developed a survey that measured the use, satisfaction, and future sustainability of the HIE for over 200 providers within the District of Columbia. While the evaluation focused on the D.C. HIE program in its entirety, the results

  4. Do needle and syringe programs reduce risky behaviours among people who inject drugs in Kermanshah City, Iran? A coarsened exact matching approach.

    Science.gov (United States)

    Noroozi, Mehdi; Marshall, Brandon D L; Noroozi, Alireza; Armoon, Bahram; Sharifi, Hamid; Farhoudian, Ali; Ghiasvand, Hesam; Vameghi, Meroe; Rezaei, Omid; Sayadnasiri, Mohammad; Pouya, Rokhsane Hosseini

    2017-12-21

    In this study, we used a 'coarsened exact matching' method to evaluate the relationship between two levels of needle and syringe program (NSP) utilisation and HIV-related risk behaviours among people who inject drugs (PWID). Using snowball sampling, we recruited 500 PWID (all male) in Kermanshah City, Iran between September and December 2014 in a cross-sectional survey. We categorised participants into two groups, including high (i.e. receiving 60% or more of their syringes from an NSP) and low (i.e. receiving less than 60% of their syringes from NSP) NSP users. Then, we applied coarsened exact matching to match the two groups based on confounding covariates (age, place of residence, income, receiving methadone maintenance treatment) and made statistically equivalent comparison groups to estimate the effect of the NSP on injection risk behaviours. Participants with low NSP use were more likely to report borrowing syringes in past 2 months (odds ratio [OR] 1.71; 95% confidence interval [CI] 1.30, 1.86; P Kermanshah, Iran. Expanded coverage of high-quality NSPs is recommended. © 2017 Australasian Professional Society on Alcohol and other Drugs.

  5. Robotically steering flexible needles

    NARCIS (Netherlands)

    Abayazid, Momen

    2015-01-01

    Needle insertion into soft tissue is one of the common minimally invasive surgical procedures. Many diagnostic and therapeutic clinical procedures require insertion of a needle to a specific location in soft-tissue, including biopsy or radioactive seed implantation for cancer treatment

  6. Needle phobia during pregnancy.

    Science.gov (United States)

    Searing, Kimberly; Baukus, Mary; Stark, Mary Ann; Morin, Karen H; Rudell, Barb

    2006-01-01

    The objective of this study was to understand the experience of a pregnant woman with needle phobia and examine its impact on her antepartum, intrapartum, and postpartum experience. A case study format was employed. A 21-year-old primiparous woman with diagnosed needle phobia was interviewed, and her prenatal and delivery records were reviewed. Three tasks during pregnancy were identified: seeking trusting relationships with health care providers; establishing and maintaining control and understanding; and coping with fear of needles, pain, and invasion. As frequent caregivers during childbearing, nurses with an understanding of needle phobia can help to establish trusting relationships with women with this phobia and support them and their families during childbearing and their encounters with needles. (c) 2006, AWHONN, the Association of Women's Health, Obstetric and Neonatal Nurses

  7. Marine Language Exchange Program: A 21st Century International and Interdisciplinary Partnership

    Science.gov (United States)

    Robigou, V.; Nichols-Pecceu, M.

    2001-12-01

    The ability of scientists to communicate across cultural and linguistic barriers is crucial for the global economic sustainability and protection of the world\\'{}s oceans. Yet students with majors in the sciences and engineering constitute less than 2% of those who study abroad each year. And even rarer are students who study in countries where English is not the first language. The Marine Language Exchange program is a case study of an international and interdisciplinary collaboration between faculties in the languages and the sciences who address this gap. A consortium of U.S. and European institutions including Eckerd College (Florida), University of Washington (Washington), University of Hilo (Hawaii), Université de la Rochelle (France), Université de Liège (Belgium), and Universidad de Las Palmas (Spain) is developing a multilingual, marine sciences exchange program in an effort to internationalize their Marine Sciences departments. The program includes a three-week, intensive "bridge" course designed to reinforce second language skills in the context of marine sciences, and prepare undergraduate students for the cultural and educational differences of their host country. Following this immersion experience students from each institution enroll in courses abroad including marine sciences specialization for full academic credit. This session will review the Marine Language Exchange program activities since 2000 and will discuss the ideological and practical aspects of the program. The program successes, difficulties and future directions will also be presented. Different disciplinary approaches -Second Language Acquisition, English as a Second Language and Marine Science- prepare science students to contribute to the study and the management of the world\\'{}s oceans with an awareness of the cultural issues reflected by national marine policies. Based on this case study, other universities could initiate their own international and interdisciplinary

  8. A computer program for designing fin-and-tube heat exchanger for EGR cooler application

    Science.gov (United States)

    Syaiful, Marwan, M. A.; Tandian, N. P.; Bae, M.

    2016-03-01

    EGR (exhaust gas recirculation) cooler is a kind of heat exchanger that is used to cool exhaust gas recirculation prior to be mixed with fresh air in an intake manifold of vehicle in order to obtain good reduction of NOxemissions. A fin-and-tube heat exchanger is more preferred as an EGR cooler than a shell-and-tube heat exchanger in this study due to its compactness. Manually designing many configurations of fin-and-tube heat exchanger for EGR cooler application consumes a lot of time and is high cost. Therefore, a computer aided design process of EGR cooler is required to overcome this problem. The EGR cooler design process was started by arranging the sequences of calculation algorithm in a computer program. A cooling media for this EGR cooler is air. The design is based on the effectiveness-number transfer unit (NTU) method. The EGR cooler design gives the geometry, heat transfer surface area, heat transfer coefficient and pressure drop of the EGR cooler. Comparison of the EGR cooler Nusselt number obtained in this study and that reported in literature shows less than 6.2% discrepancy.

  9. Experiments with needle bearings

    Science.gov (United States)

    Ferretti, Pericle

    1933-01-01

    Experiments and results are presented in testing needle bearings, especially in comparison with roller bearings. Reduction in coefficient of friction is discussed as well as experimental methods and recording devices.

  10. Developing additional capacity for wilderness management: An international exchange program between South Africa and United States wilderness rangers

    Science.gov (United States)

    Pierre van den Berg; Ralph Swain

    2007-01-01

    Wilderness managers have limited time to initiate international exchanges. Additionally, the benefits to developing capacity for wilderness management around the globe are not significant enough to make the effort cost-effective. International assistance, including wilderness management exchange programs, is critical to protecting wild areas around the globe. Former...

  11. European contribution to heat exchanger design/performance: HTFS research and computer programs. Final report. [SCON4 and CEMP1

    Energy Technology Data Exchange (ETDEWEB)

    Lang, C.; Skrovanek, T.

    1979-01-01

    The performance of selected HTFS computer program in solving example heat exchanger design/performance situations is evaluated. In addition, the specific inputs required by the program are presented to give an idea of the amount of detail the user must supply concerning the heat transfer system. Comments on the versatility of each program and technical details necessary for running each program are also provided. The computer programs examined rate the performance of shell-and-tube type condensers and plate-fin heat exchangers.

  12. Proceedings of the efficient separations and processing crosscutting program 1997 technical exchange meeting

    Energy Technology Data Exchange (ETDEWEB)

    Gephart, J.M. [ed.

    1997-05-01

    This document contains summaries of technology development presented at the 1997 Efficient Separations and Processing Crosscutting Program (ESP-CP) Technical Exchange Meeting (TEM), held January 28-30, 1997, in Gaithersburg, Maryland. The ESP-CP is sponsored by the U.S. Department of Energy`s Office of Environmental Management (DOE/EM), Office of Science and Technology. The ESP-CP TEM is held annually to: (1) Present current technology development activities funded by the ESP-CP. Developers of ESP-CP-funded technologies describe the problems and needs addressed by their technologies; the technical approach, accomplishments, and resolution of issues; the strategy and schedule for commercialization; and evolving potential applications. Representatives from DOE/EM`s Focus Areas also present their technology needs. (2) Promote the exchange of technical information among those developing new separations technologies, those responsible for providing new separations technologies to meet DOE/EM needs, and those who need or will potentially make use of such technologies. (3) Familiarize the ESP-CP Technical Review Team with the FY 1997 program and solicit reviewers` views on the program as a whole. This meeting is not a program review of the individual tasks, but instead focuses on the technical aspects and implementation of ESP-CP-sponsored technology or data. This document also contains a list of ESP-CP-sponsored publications, presentations, and patents. Separate abstracts have been indexed into the energy database for contributions to this proceedings.

  13. Proceedings of the efficient separations and processing crosscutting program 1997 technical exchange meeting

    International Nuclear Information System (INIS)

    Gephart, J.M.

    1997-01-01

    This document contains summaries of technology development presented at the 1997 Efficient Separations and Processing Crosscutting Program (ESP-CP) Technical Exchange Meeting (TEM), held January 28-30, 1997, in Gaithersburg, Maryland. The ESP-CP is sponsored by the U.S. Department of Energy's Office of Environmental Management (DOE/EM), Office of Science and Technology. The ESP-CP TEM is held annually to: (1) Present current technology development activities funded by the ESP-CP. Developers of ESP-CP-funded technologies describe the problems and needs addressed by their technologies; the technical approach, accomplishments, and resolution of issues; the strategy and schedule for commercialization; and evolving potential applications. Representatives from DOE/EM's Focus Areas also present their technology needs. (2) Promote the exchange of technical information among those developing new separations technologies, those responsible for providing new separations technologies to meet DOE/EM needs, and those who need or will potentially make use of such technologies. (3) Familiarize the ESP-CP Technical Review Team with the FY 1997 program and solicit reviewers' views on the program as a whole. This meeting is not a program review of the individual tasks, but instead focuses on the technical aspects and implementation of ESP-CP-sponsored technology or data. This document also contains a list of ESP-CP-sponsored publications, presentations, and patents. Separate abstracts have been indexed into the energy database for contributions to this proceedings

  14. Trend Analyses of Users of a Syringe Exchange Program in Philadelphia, Pennsylvania: 1999-2014.

    Science.gov (United States)

    Maurer, Laurie A; Bass, Sarah Bauerle; Ye, Du; Benitez, José; Mazzella, Silvana; Krafty, Robert

    2016-12-01

    This study examines trends of injection drug users' (IDUs) use of a Philadelphia, Pennsylvania, syringe exchange program (SEP) from 1999 to 2014, including changes in demographics, drug use, substance abuse treatment, geographic indicators, and SEP use. Prevention Point Philadelphia's SEP registration data were analyzed using linear regression, Pearson's Chi square, and t-tests. Over time new SEP registrants have become younger, more racially diverse, and geographically more concentrated in specific areas of the city, corresponding to urban demographic shifts. The number of new registrants per year has decreased, however syringes exchanged have increased. Gentrification, cultural norms, and changes in risk perception are believed to have contributed to the changes in SEP registration. Demographic changes indicate outreach strategies for IDUs may need adjusting to address unique barriers for younger, more racially diverse users. Implications for SEPs are discussed, including policy and continued ability to address current public health threats.

  15. 76 FR 68808 - Exchange Visitor Program-Cap on Current Participant Levels and Moratorium on New Sponsor...

    Science.gov (United States)

    2011-11-07

    ... post-secondary students have participated in the past decade. The SWT program supports public diplomacy... DEPARTMENT OF STATE [Public Notice: 7677] Exchange Visitor Program--Cap on Current Participant Levels and Moratorium on New Sponsor Applications for Summer Work Travel Program AGENCY: Department of...

  16. EEI/UWASTE oversight of the DOE Repository Program by the Repository Information Exchange Team

    International Nuclear Information System (INIS)

    Henkel, C.J.; Supko, E.M.; Schwartz, M.H.

    1993-01-01

    The Utility Nuclear Waste and Transportation Program of the Edison Electric Institute (EEI/UWASTE) has conducted reviews of the US DOE's repository program through its Repository Information Exchange Team (RIET or Team). Eight such reviews have been conducted since 1985 covering topics that include repository program management and control; repository schedule; repository budget; quality assurance; site characterization; repository licensing; environmental issues; and institutional and public information activities. The utility industry has used these repository program reviews as a forum for providing DOE's Office of Civilian Radioactive Waste Management (OCRWM) with comments on the direction of the repository program, advice for future actions regarding quality assurance activities and repository licensing, and suggestions for management and control of the Repository Program. The most significant recommendations made by the utility industry through the RIET are discussed along with any subsequent action by OCRWM in response to or subsequent to utility industry recommendations. The process used by the RIET to develop its recommendations to OCRWM regarding the repository program is also discussed

  17. The Marine Language Exchange Program: an International Approach to Ocean Sciences

    Science.gov (United States)

    Nowell, A.; Robigou, V.

    2004-12-01

    The ability of scientists to communicate across cultural and linguistic barriers is crucial for the global economic sustainability and protection of the world's oceans. Yet students with majors in the sciences and engineering constitute less than 2% of those who study abroad each year. And even fewer are students who study in countries where English is not the first language. The Marine Language Exchange program is a case study of an international and interdisciplinary collaboration between faculties in the languages and the sciences that address this gap. A consortium of U.S. and European institutions including University of Washington (Washington), Eckerd College (Florida), University of Hilo (Hawaii), Université de la Rochelle (France), Université de Liège (Belgium), and Universidad de Las Palmas (Spain) is developing a multilingual, marine sciences exchange program in an effort to internationalize their ocean sciences departments. The program includes a three-week, intensive "bridge" course designed to reinforce second language skills in the context of marine sciences, and prepare undergraduate students for the cultural and educational differences of their host country. Following this preparatory immersion experience students from each institution enroll in courses abroad for 6 to 12 months to study marine sciences for full academic credit. Different disciplinary approaches -Second Language Acquisition, English as a Second Language and Marine Science- prepare science students to contribute to the study and the management of the world\\'{}s oceans with an awareness of the cultural issues reflected by national marine policies.

  18. TREATMENT OF HAMSTRING STRAIN IN A COLLEGIATE POLE‐VAULTER INTEGRATING DRY NEEDLING WITH AN ECCENTRIC TRAINING PROGRAM: A RESIDENT'S CASE REPORT

    Science.gov (United States)

    Westrick, Richard B.; Zylstra, Edo; Johnson, Michael R.

    2013-01-01

    Background: Hamstring strain injuries are among the most common injuries seen in sports. Management is made difficult by the high recurrence rates. Typical time to return to sport varies but can be prolonged with recurrence. Eccentric strength deficits remain post‐injury, contributing to reinjury. Eccentric training has shown to be an effective method at prevention of hamstring injury in multiple systematic reviews and prospective RCTs but limited prospective rehabilitation literature. Functional dry needling is a technique that has been reported to be beneficial in the management of pain and dysfunction after muscle strains, but there is limited published literature on its effects on rehabilitation or recurrence of injury. Purpose: The purpose of this case report is to present the management and outcomes of a patient with hamstring strain, treated with functional dry needling and eccentric exercise. Case Description: The subject was an 18‐year‐old collegiate pole‐vaulter who presented to physical therapy with an acute hamstring strain and history of multiple strains on uninvolved extremity. He was treated in Physical Therapy three times per week for 3 weeks with progressive eccentric training and 3 sessions of functional dry needling. Outcomes: By day 12, his eccentric strength on the involved extremity was greater than the uninvolved extremity and he reported clinically meaningful improvement in outcome scores. By Day 20, he was able to return to full sports participation without pain or lingering strength deficits. Discussion: The patient in this case report was able to return to sport within 20 days and without recurrence. He demonstrated significant decreases in pain and dysfunction with dry needling. He had greater strength on the injured extremity compared to contra‐lateral previously injured extremity. Conclusions: This case illustrates the use of functional dry needling and eccentric exercise leading to a favorable outcome in a patient with

  19. Treatment of hamstring strain in a collegiate pole-vaulter integrating dry needling with an eccentric training program: a resident's case report.

    Science.gov (United States)

    Dembowski, Scott C; Westrick, Richard B; Zylstra, Edo; Johnson, Michael R

    2013-06-01

    Hamstring strain injuries are among the most common injuries seen in sports. Management is made difficult by the high recurrence rates. Typical time to return to sport varies but can be prolonged with recurrence. Eccentric strength deficits remain post-injury, contributing to reinjury. Eccentric training has shown to be an effective method at prevention of hamstring injury in multiple systematic reviews and prospective RCTs but limited prospective rehabilitation literature. Functional dry needling is a technique that has been reported to be beneficial in the management of pain and dysfunction after muscle strains, but there is limited published literature on its effects on rehabilitation or recurrence of injury. The purpose of this case report is to present the management and outcomes of a patient with hamstring strain, treated with functional dry needling and eccentric exercise. The subject was an 18-year-old collegiate pole-vaulter who presented to physical therapy with an acute hamstring strain and history of multiple strains on uninvolved extremity. He was treated in Physical Therapy three times per week for 3 weeks with progressive eccentric training and 3 sessions of functional dry needling. By day 12, his eccentric strength on the involved extremity was greater than the uninvolved extremity and he reported clinically meaningful improvement in outcome scores. By Day 20, he was able to return to full sports participation without pain or lingering strength deficits. The patient in this case report was able to return to sport within 20 days and without recurrence. He demonstrated significant decreases in pain and dysfunction with dry needling. He had greater strength on the injured extremity compared to contra-lateral previously injured extremity. This case illustrates the use of functional dry needling and eccentric exercise leading to a favorable outcome in a patient with hamstring strain. Level 4.

  20. [Screening program for tuberculosis among international exchange students in the Department of Isère].

    Science.gov (United States)

    Albahary, M-V; Blanc-Jouvan, F; Recule, C; Dubey, C; Pavese, P

    2018-01-01

    France is a low-incidence country for tuberculosis (TB). Consequently screening is focused on high-risk populations, in particular migrants. The aim of this study was to evaluate the epidemiology of TB among international exchange students in the Department of Isère and the screening programs used. We carried out an organizational audit based on interviews with physicians involved in the management of TB in Isère. We conducted a retrospective descriptive study based on a case series of foreign students treated for TB from 2003 to 2013 inclusively. Forty-six international exchange students were treated for active TB during this time, representing an average incidence of 284/100,000. Two thirds of our studied population were Africans, 72% were asymptomatic at the time of screening. A quarter of our cohort developed TB after the initial screening. Thirty-one cases were confirmed bacteriologically, mainly through bronchoscopy. Outcome (radiological and clinical) on quadruple therapy was satisfactory in all patients. Two patients relapsed, one of them with multi-drug resistant TB. Our work confirms that international exchange students are a population at high risk of TB and that screening of this population is essential. The significant number of active TB cases diagnosed after the initial screening stresses the importance of diagnosis and follow up of patients with latent TB infection. Copyright © 2017 SPLF. Published by Elsevier Masson SAS. All rights reserved.

  1. Trigger Point Dry Needling.

    Science.gov (United States)

    2017-03-01

    Increasingly, physical therapists in the United States and throughout the world are using dry needling to treat musculoskeletal pain, even though this treatment has been a controversial addition to practice. To better generalize to physical therapy practice the findings about dry needling thus far, the authors of a study published in the March 2017 issue of JOSPT identified the need for a systematic review examining the effectiveness of dry needling performed by physical therapists on people with musculoskeletal pain. Their review offers a meta-analysis of data from several included studies and assesses the evidence for risks of bias. J Orthop Sports Phys Ther 2017;47(3):150. doi:10.2519/jospt.2017.0502.

  2. Factors influencing adjustment of high school students in an international exchange program.

    Science.gov (United States)

    Furukawa, T; Shibayama, T

    1994-12-01

    The present study aims to investigate which psychosocial factors measured before departure are predictive of various aspects of intercultural adjustment among Japanese teenagers enrolled in a foreign exchange student program. A cohort of 188 Japanese high school students, who had been selected to spend 1 year in various countries of the world under the aegis of an international exchange student program, was administered the Maudsley Personality Inventory, the Parental Bonding Instrument, the General Health Questionnaire and the People in Your Life Scale before their departure from Japan. Six months after arrival in the host community, they were again asked to complete the General Health Questionnaire and relevant sections of the People in Your Life Scale. The students showed highly significant and substantial deterioration in all three areas of psychosocial adjustment: they reported more psychiatric symptoms, less availability of social relationships, and less satisfaction with them in their host community than at home. Psychiatric symptoms were best predicted by perceived adequacy of intimate attachments and neuroticism measured before departure, availability of social relationships abroad by availability and adequacy of social relationships and adequacy of attachments at home, and satisfaction with social relationships abroad by satisfaction with attachments at home and by paternal care before age 16. This study thus demonstrates that studying abroad entails deterioration in psychosocial adjustment of the adolescents studied and that different factors are influential in different aspects of adjustment. The importance of a prospective and multifaceted study of intercultural adjustment process is emphasized.

  3. Proceedings of the Efficient Separations and Processing Cross-Cutting Program Annual Technical Exchange Meeting

    International Nuclear Information System (INIS)

    1995-01-01

    This document contains summaries of technology development presented at the 1995 Efficient Separations and Processing Cross-Cutting Program (ESP) Annual Technical Exchange Meeting. The ESP is sponsored by the US Department of Energy's Office of Environmental Management (EM), Office of Technology Development. The meeting is held annually to promote a free exchange of ideas among technology developers, potential users (for example, EM focus areas), and other interested parties within EM. During this meeting, developers of ESP-funded technologies describe the problems and needs addressed by their technologies; the technical approach, accomplishments, and resolution of issues; the strategy and schedule for commercialization; and evolving potential applications. Presenters are asked to address the following areas: Target waste management problem, waste stream, or data need; scientific background and technical approach; technical accomplishments and resolution of technical issues; schedule and strategy for commercializing and implementing the technology or acquiring needed data; potential alternate applications of the technology or data, including outside of DOE/EM. The meeting is not a program review of the individual tasks or subtasks; but instead focuses on the technical aspects and implementation of ESP-sponsored technology or data. The meeting is also attended by members of the ESP Technical Review Team, who have the opportunity at that time to review the ESP as a whole

  4. Academic performance and personal experience of local, international, and collaborative exchange students enrolled in an Australian pharmacy program.

    Science.gov (United States)

    Davey, Andrew K; Grant, Gary D; Anoopkumar-Dukie, Shailendra

    2013-09-12

    To assess the academic performance and experiences of local, international, and collaborative exchange students enrolled in a 4-year Australian bachelor of pharmacy degree program. Survey instruments exploring the demographics, background, and academic and cultural experiences of students during the program were administered in 2005 to students in all 4 years. Additionally, grades from each semester of the program for students (406 local, 70 international, 155 exchange) who graduated between 2002 and 2006 were analyzed retrospectively. The main differences found in the survey responses among the 3 groups were in students' motivations for choosing the degree program and school, with international and collaborative exchange students having put more thought into these decisions than local students. The average grades over the duration of the program were similar in all 3 demographic groups. However, local students slightly outperformed international students, particularly at the start of the year, whereas collaborative exchange students' grades mirrored those of local students during the 2 years prior to leaving their home country of Malaysia but more closely mirrored those of international students in the final 2 years after arriving on campus in Australia. Despite differences in academic backgrounds and culture, international and exchange students can perform well compared to local students in a bachelor of pharmacy program and were actually more satisfied than local students with the overall experience. Studying in a foreign country can negatively influence academic grades to a small extent and this is probably related to adjusting to the new environment.

  5. [Bone biopsy needles: mechanical properties, needle design and specimen quality].

    Science.gov (United States)

    Keulers, A; Cunha-Cruz, V C; Bruners, P; Penzkofer, T; Braunschweig, T; Schmitz-Rode, T; Mahnken, A

    2011-03-01

    To quantitatively analyze differences in mechanical properties, needle design including signs of wear, subjective handling and specimen quality of bone biopsy needles. In this study 19 different bone biopsy systems (total 38; 2 /type) were examined. With each biopsy needle five consecutive samples were obtained from vertebral bodies of swine. During puncture a force-torques sensor measured the mechanical properties and subjective handling was assessed. Before and after each biopsy the needles were investigated using a profile projector and signs of wear were recorded. Afterwards, a pathologist semi-quantitatively examined the specimen regarding sample quality. The overall evaluation considered mechanical properties, needle wear, subjective handling and sample quality. Differences were assessed for statistical significance using ANOVA and t-test. Needle diameter (p = 0.003) as well as needle design (p = 0.008) affect the mechanical properties significantly. Franseen design is significantly superior to other needle designs. Besides, length reduction recorded by the profile projector, as a quality criterion showed notable distinctions in between the needle designs. Bone biopsy needles vary significantly in performance. Needle design has an important influence on mechanical properties, handling and specimen quality. Detailed knowledge of those parameters would improve selecting the appropriate bone biopsy needle. © Georg Thieme Verlag KG Stuttgart · New York.

  6. Usefulness of needle holder with a function of fine forceps for bypass surgery in both hands.

    Science.gov (United States)

    Horiuchi, Tetsuyoshi; Seguchi, Tatsuya; Ito, Kiyoshi; Hongo, Kazuhiro

    2015-01-01

    In bypass surgery, a single-handed needle holder is usually used with other handed fine forceps. Recently, a needle holder with the function of fine forceps has been developed. In this technical note, usefulness of newly developed needle holders in both hands is presented in bypass surgery. With this method, surgeons can make stitches and ties by both hands without exchanging instruments. This method is effective and may result in faster anastomotic procedure comparing with the traditional one.

  7. Mosquito inspired medical needles

    DEFF Research Database (Denmark)

    Lenau, Torben Anker; Hesselberg, Thomas; Drakidis, Alexandros Dimitrios

    2017-01-01

    The stinging proboscis in mosquitos have diameters of only 40-100 μm which is much less than the thinnest medical needles and the mechanics of these natural stinging mechanisms have therefore attracted attention amongst developers of injection devises. The mosquito use a range of different...

  8. Mechanics of needle-tissue interaction

    NARCIS (Netherlands)

    Roesthuis, Roy; van Veen, Youri; Jahya, Alex; Misra, Sarthak

    2011-01-01

    When a needle is inserted into soft tissue, interac- tion forces are developed at the needle tip and along the needle shaft. The needle tip force is due to cutting of the tissue, and the force along the needle shaft is due to friction between needle and tissue. In this study, the friction force is

  9. Exchange program. Alternative options for purchase of environmentally friendly vehicles in Stockholm

    Energy Technology Data Exchange (ETDEWEB)

    Rader Olsson, Amy [Inregia AB, Stockholm (Sweden); Elam, N. [Atrax Energi AB, Goeteborg (Sweden)

    1999-11-01

    The city of Stockholm has decided to exchange 300 of its gasoline-driven vehicles for vehicles which emit fewer hazardous pollutants. A vehicle exchange program is being developed based on analyses which describe the driving patterns of Stockholm's vehicles, alternative fuel technology status, and financing alternatives. This report comprises the first two analyses, that of Stockholm's fleet driving patterns and alternative fuel technology options. The report has four major sections: * a technical analysis of the status of certain fuels and vehicles, including prognoses of availability in Sweden and the future development potential of each. (electric, biogas, ethanol, RME), * a driving study, which identifies those vehicles currently in Stockholm's fleet which could be exchanged for alternatively-fueled vehicles, * an analysis of five purchase package alternatives, and * a location analysis, which describes the accessibility of vehicles in each alternative to alternative fuel refueling facilities in Stockholm. Given current prices and availability of the alternative fuels and vehicles studied, we recommend a high share of electric and biogas vehicles for purchases during 1997. The cost-effectiveness of different vehicle types in their reduction of various hazardous pollutants, may however change dramatically as prices and availability of vehicles changes and the market for alternative fuels develops. Accessibility to alternative fuel refueling facilities is adequate in Stockholm, though not always ideal. To improve the accessibility of biogas vehicles further, we suggest a third biogas refueling facility in the city's northeastern area (Ropsten, Vaertahamnen). If MFO chooses to purchase a significant number of diesel passenger vehicles to be driven on RME; we propose that a facility in the northeastern area would improve accessibility more than another facility in southern Stockholm.

  10. Complementary knowledge sharing: Experiences of nursing students participating in an educational exchange program between Madagascar and Norway.

    Science.gov (United States)

    Tjoflåt, Ingrid; Razaonandrianina, Julie; Karlsen, Bjørg; Hansen, Britt Sætre

    2017-02-01

    To describe how Malagasy and Norwegian nursing students experience an educational exchange program in Madagascar. Previous studies show that nursing students participating in an educational exchange program enhanced their cultural knowledge and experienced personal growth. However, few studies have described two-way exchange programs, including experiences from both the hosts' and the guest students' perspectives. This study applies a descriptive qualitative design. Data were collected in 2015 by means of five semi-structured interviews with Malagasy students and two focus group interview sessions with Norwegian students. They were analysed using qualitative content analysis. The study was conducted in Madagascar. The data analyses revealed one main theme and two sub-themes related to the Malagasy and Norwegian nursing students' experiences. Main theme: complementary knowledge sharing; sub-themes: (1) learning from each other and (2) challenges of working together. The findings indicate that both the Malagasy and Norwegian nursing students experienced the exchange program as valuable and essential in exchanging knowledge. They also highlighted challenges, linked mainly to language barriers and the lack of available resources. Copyright © 2016 Elsevier Ltd. All rights reserved.

  11. Options for reducing HIV transmission related to the dead space in needles and syringes.

    Science.gov (United States)

    Zule, William A; Pande, Poonam G; Otiashvili, David; Bobashev, Georgiy V; Friedman, Samuel R; Gyarmathy, V Anna; Des Jarlais, Don C

    2018-01-15

    When shared by people who inject drugs, needles and syringes with different dead space may affect the probability of HIV and hepatitis C virus (HCV) transmission differently. We measured dead space in 56 needle and syringe combinations obtained from needle and syringe programs across 17 countries in Europe and Asia. We also calculated the amounts of blood and HIV that would remain in different combinations following injection and rinsing. Syringe barrel capacities ranged from 0.5 to 20 mL. Needles ranged in length from 8 to 38 mm. The average dead space was 3 μL in low dead space syringes with permanently attached needles, 13 μL in high dead space syringes with low dead space needles, 45 μL in low dead space syringes with high dead space needles, and 99 μL in high dead space syringes with high dead space needles. Among low dead space designs, calculated volumes of blood and HIV viral burden were lowest for low dead space syringes with permanently attached needles and highest for low dead space syringes with high dead space needles. The dead space in different low dead space needle and syringe combinations varied substantially. To reduce HIV transmission related to syringe sharing, needle and syringe programs need to combine this knowledge with the needs of their clients.

  12. The effect of needle gauge, needle type, and needle orientation on the volume of a drop.

    Science.gov (United States)

    Tripp, Geneva K; Good, Kathryn L; Motta, Monica J; Kass, Philip H; Murphy, Christopher J

    2016-01-01

    The purpose of this study was to determine impact of needle gauge, type, and orientation on average volume of drop dispensed. Five needle gauges (22G, 23G, 25G, 27G, and 30G) were examined. For each gauge, volume of drop delivered was determined for standard sharp beveled tip, blunt tip, and after breaking off of the sharp needle from the hub. Vertical and horizontal orientation of the needle was tested for effect on drop volume for 22-G and 30-G sharp beveled needles. Mean drop volume was affected by needle gauge, needle orientation, and whether the needle had been broken off from its hub. Mean drop volume scaled directly with needle diameter with drop volumes of 25.0 μL (±20.2) and 83.9 μL (±16.5) being found for 30-gauge and 22-gauge needles, respectively. Intermediate gauges (27, 25, 23G) yielded intermediate drop volumes. Blunt needles tended to produce larger drop volumes compared to sharp beveled needles, but these differences did not reach statistical significance. Breaking off of the needle from the hub produced substantially larger drop volumes with little difference being found between needle gauges. Average volumes of 1 drop from a 22-G vertical, 22-G horizontal, 30-G vertical, and 30-G horizontal sharp beveled needle were 20.2, 9.1, 10.1, and 3.3 μL, respectively. These findings have relevance for controlled delivery of topical ophthalmic medications to patients. © 2015 American College of Veterinary Ophthalmologists.

  13. Interprofessional student education: exchange program between Albert Einstein College of Medicine and Pacific College of Oriental Medicine.

    Science.gov (United States)

    Anderson, Belinda J; Herron, Patrick D; Downie, Sherry A; Myers, Daniel C; Milan, Felise B; Olson, Todd R; Kligler, Ben E; Sierpina, Victor S; Kreitzer, Mary Jo

    2012-01-01

    The growing popularity of complementary and alternative medicine (CAM), of which estimated 38% of adults in the United States used in 2007, has engendered changes in medical school curricula to increase students' awareness of it. Exchange programs between conventional medical schools and CAM institutions are recognized as an effective method of interprofessional education. The exchange program between Albert Einstein College of Medicine (Einstein, Yeshiva University) and Pacific College of Oriental Medicine, New York campus (PCOM-NY) is in its fifth year and is part of a broader relationship between the schools encompassing research, clinical training, interinstitutional faculty and board appointments, and several educational activities. The Einstein/PCOM-NY student education exchange program is part of the Einstein Introduction to Clinical Medicine Program and involves students from Einstein learning about Chinese medicine through a lecture, the experience of having acupuncture, and a four-hour preceptorship at the PCOM outpatient clinic. The students from PCOM learn about allopathic medicine training through an orientation lecture, a two-and-a-half-hour dissection laboratory session along side Einstein student hosts, and a tour of the clinical skills center at the Einstein campus. In the 2011/2012 offering of the exchange program, the participating Einstein and PCOM students were surveyed to assess the educational outcomes. The data indicate that the exchange program was highly valued by all students and provided a unique learning experience. Survey responses from the Einstein students indicated the need for greater emphasis on referral information, which has been highlighted in the literature as an important medical curriculum integrative medicine competency. Copyright © 2012 Elsevier Inc. All rights reserved.

  14. Germany-US Nuclear Theory Exchange Program for QCD Studies of Hadrons & Nuclei 'GAUSTEQ'

    Energy Technology Data Exchange (ETDEWEB)

    Dudek, Jozef [Old Dominion Univ., Norfolk, VA (United States); Melnitchouk, Wally [Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)

    2016-03-07

    GAUSTEQ was a Germany-U.S. exchange program in nuclear theory whose purpose was to focus research efforts on QCD studies of hadrons and nuclei, centered around the current and future research programs of Jefferson Lab and the Gesellschaft fur Schwerionenforschung (GSI) in Germany. GAUSTEQ provided travel support for theoretical physicists at US institutions conducting collaborative research with physicists in Germany. GSI (with its Darmstadt and Helmholtz Institute Mainz braches) served as the German “hub” for visits of U.S. physicists, while Jefferson Lab served as the corresponding “hub” for visits of German physicists visiting U.S. institutions through the reciprocal GUSTEHP (German-US Theory Exchange in Hadron Physics) program. GAUSTEQ was funded by the Office of Nuclear Physics of the U.S. Department of Energy, under Contract No.DE-SC0006758 and officially managed through Old Dominion University in Norfolk, Virginia. The program ran between 2011 and 2015.

  15. From ivory tower to prison watchtower: The STEM Ambassador Program promotes exchange outside of traditional venues

    Science.gov (United States)

    Nadkarni, N.; Weber, C.

    2017-12-01

    Scientists can be effective in engaging the public, due to their deep content knowledge and passion for their research. However, most training programs prepare scientists to communicate with public groups who seek out informal science education (ISE) activities at science centers and zoos, but not all Americans regularly participate in ISE activities. Opportunities for scientists to exchange information with those who may not seek out science but who hold the potential to contribute novel ideas and generate political support for our discipline can enhance the scientific enterprise. With support of the National Science Foundation (NSF), we created the "STEM Ambassador Program" (STEMAP), a research and public engagement project that aims to bridge science and society by training scientists to engage audiences outside of traditional venues. Activities are based on commonalities between the scientist's research interests and/or personal characteristics, and the interests, professions, and recreational pursuits of community groups. Scientists are encouraged to work with underserved communities (e.g., senior citizens), communities facing barriers to science learning (e.g., incarcerated men and women), and non-academic stakeholders in scientific research (e.g., decision-makers). STEMAP training is derived from three NSF-funded ISE models: Portal to the Public, the Research Ambassador Program, and Design Thinking. In 2016-2017, two cohorts of 20 scientists each, representing 15 departments at the University of Utah, received training. Examples of engagement activities included: An engineer presented his work to develop air quality monitoring devices to a local government council, and invited members to participate in his understanding of regional air quality. A microbiologist provided a microscope view of the microbes that are involved in fermentation with classes at a local cooking school. An urban planning researcher met with inmates in a horticulture training program at

  16. Needle bar for warp knitting machines

    Science.gov (United States)

    Hagel, Adolf; Thumling, Manfred

    1979-01-01

    Needle bar for warp knitting machines with a number of needles individually set into slits of the bar and having shafts cranked to such an extent that the head section of each needle is in alignment with the shaft section accommodated by the slit. Slackening of the needles will thus not influence the needle spacing.

  17. Needling the early universe

    International Nuclear Information System (INIS)

    Hawkins, I.; Wright, E.L.

    1988-01-01

    The possibility that the whole microwave background can be produced by a bright population of pregalactic stars at a redshift of a few hundred is explored. The radiation is thermalized by a combination of amorphous silicate, amorphous carbon, graphite, and needle-shaped conducting grains which give rise to the opacity needed at wavelengths greater than 3 cm. The occurrence of distortion in a primordial microwave background spectrum due to its interaction with Population III stars and dust is investigated. The possibility of producing deviations small enough to be consistent with the best available observations, but still detectable by COBE, is considered. 65 references

  18. Enterobacter aerogenes Needle Stick Leads to Improved Biological Management System

    Energy Technology Data Exchange (ETDEWEB)

    Johanson, Richard E.

    2004-08-01

    A laboratory worker who received a needle stick from a contaminated needle while working with a culture containing Enterobactor aerogenes developed a laboratory acquired infection. Although this organism has been shown to cause community and nosocomial infections, there have been no documented cases of a laboratory acquired infections. Lessons learned from the event led to corrective actions which included modification of lab procedures, development of a biological inventory tracking and risk identification system and the establishment of an effective biological safety program.

  19. The NASA Scientific and Technical Information (STI) Program's Implementation of Open Archives Initiation (OAI) for Data Interoperability and Data Exchange

    Science.gov (United States)

    Rocker, JoAnne; Roncaglia, George J.; Heimerl, Lynn N.; Nelson, Michael L.

    2002-01-01

    Interoperability and data-exchange are critical for the survival of government information management programs. E-government initiatives are transforming the way the government interacts with the public. More information is to be made available through web-enabled technologies. Programs such as the NASA's Scientific and Technical Information (STI) Program Office are tasked to find more effective ways to disseminate information to the public. The NASA STI Program is an agency-wide program charged with gathering, organizing, storing, and disseminating NASA-produced information for research and public use. The program is investigating the use of a new protocol called the Open Archives Initiative (OAI) as a means to improve data interoperability and data collection. OAI promotes the use of the OAI harvesting protocol as a simple way for data sharing among repositories. In two separate initiatives, the STI Program is implementing OAI In collaboration with the Air Force, Department of Energy, and Old Dominion University, the NASA STI Program has funded research on implementing the OAI to exchange data between the three organizations. The second initiative is the deployment of OAI for the NASA technical report server (TRS) environment. The NASA TRS environment is comprised of distributed technical report servers with a centralized search interface. This paper focuses on the implementation of OAI to promote interoperability among diverse data repositories.

  20. Challenges of implementating a doctoral program in an international exchange in Cuba through the lens of Kanter's empowerment theory.

    Science.gov (United States)

    Scanlan, Judith M; Abdul Hernandéz, C

    2014-08-01

    The literature in international education focuses primarily on the experiences of western students in developing countries, international students in western universities, the development of an educational program in a developing country, or internationalization of curricula in western universities. There is little in the literature that addresses the challenges students and participating faculty face when implementing a graduate program in a developing country. The purpose of this paper is to describe and analyze the challenges of implementing a doctoral program in an international exchange through the lens of Kanter's theory of empowerment. Recommendations to address these challenges will be made. Copyright © 2014 Elsevier Ltd. All rights reserved.

  1. Relationship between canopy structure, microclimate, and Swiss needle cast severity among different ages of Douglas-fir forests

    Science.gov (United States)

    Swiss needle cast (SNC) is an endemic disease of Douglas-fir caused by Phaeocryptopus gaeumannii. The fungus infects newly emerged needles between May and August. As the fungus develops, its fruiting bodies (pseudothecia) block the stomata and inhibit gas exchange, reducing the p...

  2. The Oncor Geodatabase for the Columbia Estuary Ecosystem Restoration Program: Handbook of Data Reduction Procedures, Workbooks, and Exchange Templates

    Energy Technology Data Exchange (ETDEWEB)

    Sather, Nichole K. [Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Borde, Amy B. [Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Diefenderfer, Heida L. [Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Serkowski, John A. [Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Coleman, Andre M. [Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Johnson, Gary E. [Pacific Northwest National Lab. (PNNL), Richland, WA (United States)

    2013-12-01

    This Handbook of Data Reduction Procedures, Workbooks, and Exchange Templates is designed to support the Oncor geodatabase for the Columbia Estuary Ecosystem Restoration Program (CEERP). The following data categories are covered: water-surface elevation and temperature, sediment accretion rate, photo points, herbaceous wetland vegetation cover, tree plots and site summaries, fish catch and density, fish size, fish diet, fish prey, and Chinook salmon genetic stock identification. The handbook is intended for use by scientists collecting monitoring and research data for the CEERP. The ultimate goal of Oncor is to provide quality, easily accessible, geospatial data for synthesis and evaluation of the collective performance of CEERP ecosystem restoration actions at a program scale.

  3. 21 CFR 880.5580 - Acupuncture needle.

    Science.gov (United States)

    2010-04-01

    ... 21 Food and Drugs 8 2010-04-01 2010-04-01 false Acupuncture needle. 880.5580 Section 880.5580 Food... § 880.5580 Acupuncture needle. (a) Identification. An acupuncture needle is a device intended to pierce the skin in the practice of acupuncture. The device consists of a solid, stainless steel needle. The...

  4. Primary pulmonary non-small cell carcinomas: the College of American Pathologists Interlaboratory Comparison Program confirms a significant trend toward subcategorization based upon fine-needle aspiration cytomorphology alone.

    Science.gov (United States)

    Yildiz-Aktas, Isil Z; Sturgis, Charles D; Barkan, Guliz A; Souers, Rhona J; Fraig, Mostafa M; Laucirica, Rodolfo; Khalbuss, Walid E; Moriarty, Ann T

    2014-01-01

    Context.-Subtyping of non-small cell lung carcinomas (NSCLCs) is necessary for optimal patient management with specific diagnoses triggering specific molecular tests and affecting therapy. Objective.-To assess the accuracy of the participants of the College of American Pathologists Interlaboratory Comparison Program in diagnosing and subtyping NSCLC fine-needle aspiration (FNA) slides, based on morphology alone, considering preparation and participant type and trends over time. Design.-The performance of program participants was reviewed for the 5-year period spanning 2007-2011. Lung FNA challenges with reference diagnoses of adenocarcinoma and squamous cell carcinoma (SCC) were evaluated for diagnostic concordance by using a nonlinear mixed model analysis. Results.-There were 10 493 pathologist and 6378 cytotechnologist responses with concordance rates of 97.4% and 97.9% for malignancy, respectively. Overall concordance rates for subcategorization were 54.6% for adenocarcinoma and 74.9% for SCC. For the exact reference diagnoses, pathologists performed better for adenocarcinoma and cytotechnologists performed better for SCC. Accurate subcategorization of adenocarcinomas significantly increased over time with 31.5% of adenocarcinomas classified as NSCLC in 2007 and 25.5% of adenocarcinomas classified as NSCLC in 2011 (P alone. During the study period, a statistically significant trend was confirmed toward greater accuracy of subcategorization of adenocarcinomas, suggesting that participants are cognizant of the impact that more specific cytomorphologic interpretations have in directing molecular triage and therapy.

  5. Needle and syringe sharing among Iranian drug injectors

    Directory of Open Access Journals (Sweden)

    Roshanpajouh Mohsen

    2009-07-01

    Full Text Available Abstract Objective The role of needle and syringe sharing behavior of injection drug users (IDUs in spreading of blood-borne infections – specially HIV/AIDS – is well known. However, very little is known in this regard from Iran. The aim of our study was to determine the prevalence and associates of needle and syringe sharing among Iranian IDUs. Methods In a secondary analysis of a sample of drug dependents who were sampled from medical centers, prisons and streets of the capitals of 29 provinces in the Iran in 2007, 2091 male IDUs entered. Socio-demographic data, drug use data and high risk behaviors entered to a logistic regression to determine independent predictors of lifetime needle and syringe sharing. Results 749(35.8% reported lifetime experience of needle and syringe sharing. The likelihood of lifetime needle and syringe sharing was increased by female gender, being jobless, having illegal income, drug use by family members, pleasure/enjoyment as causes of first injection, first injection in roofless and roofed public places, usual injection at groin, usual injection at scrotum, lifetime experience of nonfatal overdose, and history of arrest in past year and was decreased by being alone at most injections. Conclusion However this data has been extracted from cross-sectional design and we can not conclude causation, some of the introduced variables with association with needle and syringe sharing may be used in HIV prevention programs which target reducing syringe sharing among IDUs.

  6. Missing needle during episiotomy repair

    Directory of Open Access Journals (Sweden)

    Joydeb Roychowdhury

    2008-01-01

    Full Text Available Breakage and missing of the episiotomy needle is not uncommon occurrence at the hands of the junior doctors. Retrieving it from deeper tissue planes following its migration can be a challenging task.

  7. Federal employees health program experiences lack of competition in some areas, raising cost concerns for exchange plans.

    Science.gov (United States)

    McBride, Timothy D; Barker, Abigail R; Pollack, Lisa M; Kemper, Leah M; Mueller, Keith J

    2012-06-01

    The Affordable Care Act calls for creation of health insurance exchanges designed to provide private health insurance plan choices. The Federal Employees Health Benefits Program is a national model that to some extent resembles the planned exchanges. Both offer plans at the state level but are also overseen by the federal government. We examined the availability of plans and enrollment levels in the Federal Employees Health Benefits Program throughout the United States in 2010. We found that although plans were widely available, enrollment was concentrated in plans owned by just a few organizations, typically Blue Cross/Blue Shield plans. Enrollment was more concentrated in rural areas, which may reflect historical patterns of enrollment or lack of provider networks. Average biweekly premiums for an individual were lowest ($58.48) in counties where competition was extremely high, rising to $65.13 where competition was extremely low. To make certain that coverage sold through exchanges is affordable, policy makers may need to pay attention to areas where there is little plan competition and take steps through risk-adjustment policies or other measures to narrow differences in premiums and out-of-pocket expenses for consumers.

  8. Cesium Ion Exchange Program at the Hanford River Protection Project Waste Treatment Plant

    International Nuclear Information System (INIS)

    CHARLES, NASH

    2004-01-01

    The River Protection Project - Hanford Tank Waste Treatment and Immobilization Plant will use cesium ion exchange to remove 137Cs from Low Activity Waste down to 0.3 Ci/m3 in the Immobilized LAW, ILAW product. The project baseline for cesium ion exchange is the elutable SuperLig, R, 644, SL-644, resin registered trademark of IBC Advanced Technologies, Inc., American Fork, UT or the Department of Energy approved equivalent. SL-644 is solely available through IBC Advanced Technologies. To provide an alternative to this sole-source resin supply, the RPP--WTP initiated a three-stage process for selection and qualification of an alternative ion exchange resin for cesium removal in the RPPWTP. It was recommended that resorcinol formaldehyde RF be pursued as a potential alternative to SL-644

  9. Germany-US Nuclear Theory Exchange Program for QCD Studies of Hadrons & Nuclei 'GAUSTEQ'

    International Nuclear Information System (INIS)

    Dudek, Jozef; Melnitchouk, Wally

    2016-01-01

    GAUSTEQ was a Germany-U.S. exchange program in nuclear theory whose purpose was to focus research efforts on QCD studies of hadrons and nuclei, centered around the current and future research programs of Jefferson Lab and the Gesellschaft fur Schwerionenforschung (GSI) in Germany. GAUSTEQ provided travel support for theoretical physicists at US institutions conducting collaborative research with physicists in Germany. GSI (with its Darmstadt and Helmholtz Institute Mainz braches) served as the German ''hub'' for visits of U.S. physicists, while Jefferson Lab served as the corresponding ''hub'' for visits of German physicists visiting U.S. institutions through the reciprocal GUSTEHP (German-US Theory Exchange in Hadron Physics) program. GAUSTEQ was funded by the Office of Nuclear Physics of the U.S. Department of Energy, under Contract No.DE-SC0006758 and officially managed through Old Dominion University in Norfolk, Virginia. The program ran between 2011 and 2015.

  10. Flexible needle steering for percutaneous therapies.

    Science.gov (United States)

    Glozman, Daniel; Shoham, Moshe

    2006-07-01

    A robotic system is presented for flexible needle steering and control in soft tissue. Flexible needle insertion into a deformable tissue is modeled as a linear beam supported by virtual springs, where the stiffness coefficients of the springs can vary along the needle. Using this simplified model, the forward and inverse kinematics of the needle are solved analytically, thus enabling both path planning and path correction in real time. Given target and obstacle locations, the computer calculates the needle tip trajectory that will avoid the obstacle and hit the target. Using the inverse kinematics algorithm, the corresponding needle base maneuver needed to follow this trajectory is calculated. It is demonstrated that the needle tip path is not unique and can be optimized to minimize lateral pressure of the needle body on the tissue. Needle steering, i.e., the needle base movements that steer the needle tip, is not intuitive. Therefore, the needle insertion procedure is best performed by a robot. The model was verified experimentally on muscle and liver tissues by robotically assisted insertion of a flexible spinal needle. During insertion, the position and shape of the needle were recorded by X-ray. This study demonstrates the ability to curve a flexible needle by its base motion in order to achieve a planned tip trajectory.

  11. Absorbing Australian Culture through the Exchange Program at RMIT International University in Vietnam

    Science.gov (United States)

    Chi, Nguyen Ho Phuong

    2013-01-01

    This paper outlines a case study of four Vietnamese students who have just completed their exchange semester at RMIT University, Melbourne. Results indicate that the students appreciate multiple benefits brought by this experience, including a developing sense of language use, responsibility, dependence, self-awareness, integration, and…

  12. An overview of heat exchanger technology in the Canadian nuclear program

    International Nuclear Information System (INIS)

    Carlucci, L.N.; Dalrymple, D.G.; Ko, P.L.; Pathania, R.; Pettigrew, M.I.; Scott, D.A.

    1981-06-01

    This paper provides an overview of the Canadian approach to the reliability and serviceability of heat exchange equipment used in nuclear power stations and heavy water plants. Current work in vibration and fretting predictions, thermal-hydraulic analyses, and corrosion research is described. Procedures developed for in-service inspection, in situ tube replacment and chemical cleaning of corrosion products are also outlined

  13. Ultrasonic Needles for Bone Biopsy.

    Science.gov (United States)

    Mathieson, Andrew; Wallace, Robert; Cleary, Rebecca; Li Li; Simpson, Hamish; Lucas, Margaret

    2017-02-01

    Bone biopsy is an invasive clinical procedure, where a bone sample is recovered for analysis during the diagnosis of a medical condition. When the architecture of the bone tissue is required to be preserved, a core-needle biopsy is taken. Although this procedure is performed while the patient is under local anaesthesia, the patient can still experience significant discomfort. Additionally, large haematoma can be induced in the soft tissue surrounding the biopsy site due to the large axial and rotational forces, which are applied through the needle to penetrate bone. It is well documented that power ultrasonic surgical devices offer the advantages of low cutting force, high accuracy, and preservation of soft tissues. This paper reports a study of the design, analysis, and test of two novel power ultrasonic needles for bone biopsy that operate using different configurations to penetrate bone. The first utilizes micrometric vibrations generated at the distil tip of a full-wavelength resonant ultrasonic device, while the second utilizes an ultrasonic-sonic approach, where vibrational energy generated by a resonant ultrasonic horn is transferred to a needle via the chaotic motion of a free-mass. It is shown that the dynamic behavior of the devices identified through experimental techniques closely match the behavior calculated through numerical and finite-element analysis methods, demonstrating that they are effective design tools for these devices. Both devices were able to recover trabecular bone from the metaphysis of an ovine femur, and the biopsy samples were found to be comparable to a sample extracted using a conventional biopsy needle. Furthermore, the resonant needle device was also able to extract a cortical bone sample from the central diaphysis, which is the strongest part of the bone, and the biopsy was found to be superior to the sample recovered by a conventional bone biopsy needle.

  14. 78 FR 12655 - Federal-State Unemployment Insurance (UI) Program; Data Exchange Standardization as Required by...

    Science.gov (United States)

    2013-02-25

    ... computer programming and rapid implementation. States also identified lack of sufficient funding as a... operations, converting to modern computer programming languages, or upgrading software libraries, protocols... Department has provided supplemental funding to State consortia to develop jointly functional requirements...

  15. Effects of an Intensive Street-Level Police Intervention on Syringe Exchange Program Use in Philadelphia, Pa

    Science.gov (United States)

    Davis, Corey S.; Burris, Scott; Kraut-Becher, Julie; Lynch, Kevin G.; Metzger, David

    2005-01-01

    Repeated measurements and mixed-effects models were used to analyze the effects of an intensive long-term street-level police intervention on syringe exchange program use. Utilization data for 9 months before and after the beginning of the intervention were analyzed. Use fell across all categories and time periods studied, with significant declines in use among total participants, male participants, and Black participants. Declines in use among Black and male participants were much more pronounced than decreases among White and female participants. PMID:15671455

  16. Ontario Hydro Research Division's program for treatment of spent ion-exchange resins

    International Nuclear Information System (INIS)

    Nott, B.R.; Dodd, D.J.R.

    1981-09-01

    A brief review of the evolution of work programmes for chemical treatment of spent ion-exchange resins in Ontario Hydro's Research Division is presented. Attention has been focussed on pre-treatment processes for the treatment of the spent resins prior to encapsulation of the products in solid matrices. Spent Resin Regeneration and Acid Stripping processes were considered in some detail. Particular attention was paid to carbon-14 on spent resins, its determination in and removal from the spent resins (with the acid stripping technique). The use of separate cation and anion resin beds instead of mixed bed resins was examined with a view to reducing the volume of resin usage and consequently the volume of waste radioactive ion-exchange resin generated. (author)

  17. Techniques for Securing Data Exchange between a Database Server and a Client Program

    Directory of Open Access Journals (Sweden)

    Ovidiu Crista

    2009-01-01

    Full Text Available The goal of the presented work is to illustrate a method by which the data exchange between a standalone computer software and a shared database server can be protected of unauthorized interceptation of the traffic in Internet network, a transport network for data managed by those two systems, interceptation by which an attacker could gain illegetimate access to the database, threatening this way the data integrity and compromising the database.

  18. Bidirectional Exchanges of Medical Students Between Institutional Partners in Global Health Clinical Education Programs: Putting Ethical Principles into Practice.

    Science.gov (United States)

    Rohrbaugh, Robert; Kellett, Anne; Peluso, Michael J

    One-third of US medical students participate in global health (GH) education, and approximately one-quarter of US medical schools have structured programs that offer special recognition in GH. GH clinical electives (GHCEs) are opportunities for students to experience a medical system and culture different from their own. GHCEs are administered through institutional affiliation agreements, often between an institution in a high-income country (HIC) and one in a low- or middle-income country (LMIC). Although these agreements suggest the exchange of students in both directions, GHCEs are traditionally characterized by students from HICs traveling to LMICs. The goal of this study was to investigate the availability of opportunities for students from LMICs participating in GHCEs at partner institutions in HICs and to describe the costs of these opportunities for students from LMICs. We conducted a web-based search of 30 US institutions previously identified as having structured programs in GH. We determined which of these schools have programs that accept medical students from international schools for GHCEs, as well as the administrative requirements, types of fees, and other costs to the international student based on information available on the web. Descriptive statistics were employed for the quantitative analysis of costs. We found that, although the majority of US institutions with structured GH programs sending students to sites abroad accept international students at their sites in the United States, nearly one-fifth of programs do not offer such opportunities for bidirectional exchange. We also characterized the substantial costs of such experiences, because this can represent a significant barrier for students from LMICs. Access to GHCEs in US partner institutions should be an important underlying ethical principle in the establishment of institutional partnerships. The opportunities available to and experiences of students from LMIC partner institutions are

  19. Border to Beltway: A Formative Field Exchange Program between Two Community Colleges for Non-Traditional Students

    Science.gov (United States)

    Villalobos, J. I.; Bentley, C.

    2014-12-01

    Community College students account for over 40% of all undergraduates in the US as well as the majority of minority students attending undergraduate courses. With issues in the geosciences such as; being the least diverse of all major STEM fields, an increasing number of retiring geoscientists, and a projected geoscience job growth not matching the number of geoscience graduates, the geoscience community needs to look at community colleges as a solution to these issues. A key factor for students entering and excelling in the geoscience is the opportunity for formative undergraduate field experiences. Formative field experiences go beyond one-day field excursions by incorporating field projects, interactive learning, and community building between participants in regions students are unfamiliar with. Unfortunately, these types of formative experiences often require logistics and resources that are not available or known to community college faculty. In order to build a framework for implementing formative field experiences by community colleges a two-week "field exchange" between two community colleges with different geological, social, and cultural settings was conducted. Supported with a supplemental grant from NSF, the "Border to Beltway" program provided 11 students from El Paso Community College and another 13 from Northern Virginia Community College with two one-week regional geology field trips: First, to West Texas in March 2014, and second, to the mid-Atlantic region in May 2014. Students were selected based on academic standing, non-traditional (minority, female, over 35, veteran) status, and interest in geology. Qualitative data collected from participants regarding the implementation of the field exchange include; student perception of geology before and after exchange, challenges students faced in the field or traveling for the first time, quantity and quality of projects given, and working with others from different backgrounds. Data regarding planning

  20. Supporting ethics educators in Canadian occupational therapy and physical therapy programs: A national interprofessional knowledge exchange project.

    Science.gov (United States)

    Hudon, Anne; Blackburn, Émilie; Laliberté, Maude; Perreault, Kadija; Mazer, Barbara; Ehrmann Feldman, Debbie; Williams-Jones, Bryn; Hunt, Matthew

    2018-02-22

    Ethics education is the cornerstone of professional practice, fostering knowledge and respect for core ethical values among healthcare professionals. Ethics is also a subject well-suited for interprofessional education and collaboration. However, there are few initiatives to gather experiences and share resources among ethics educators in rehabilitation. We thus undertook a knowledge exchange project to: 1) share knowledge about ethics training across Canadian occupational and physical therapy programs, and 2) build a community of educators dedicated to improving ethics education. The objectives of this paper are to describe this interprofessional knowledge exchange project involving ethics educators (with a diversity of professional and disciplinary backgrounds) from Canadian occupational and physical therapy programs as well as analyze its outcomes based on participants' experiences/perceptions. Two knowledge exchange strategies were employed: an interactive one-day workshop and a wiki platform. An immediate post-workshop questionnaire evaluated the degree to which participants' expectations were met. Structured telephone interviews 9-10 months after the workshop collected participants' perceptions on whether (and if so, how) the project influenced their teaching or led to further interprofessional collaborations. Open-ended questions from the post-workshop questionnaires and individual interviews were analyzed using qualitative methods. Of 40 ethics educators contacted, 23 participated in the workshop and 17 in the follow-up interview. Only 6 participants logged into the wiki from its launch to the end of data collection. Five themes emerged from the qualitative analysis: 1) belonging and networking; 2) sharing and collaborating; 3) changing (or not) ways of teaching ethics; 4) sustaining the network; and 5) envisioning the future of ethics education. The project attained many of its goals, despite encountering some challenges. While the wiki platform proved to

  1. Fine-needle aspiration biopsy of lymphoproliferative disorders--interpretations based on morphologic criteria alone: results from the College of American Pathologists Interlaboratory Comparison Program in Nongynecologic Cytopathology.

    Science.gov (United States)

    Young, Nancy A; Moriarty, Ann T; Haja, Jennifer C; Wilbur, David C

    2006-12-01

    Diagnosis of lymphoproliferative disorders is one of the most challenging tasks faced by the cytologist. The initial cytomorphologic evaluation of lymphoproliferative lesions directs the choice of ancillary studies that ultimately lead to a diagnosis based on the World Health Organization classification system using a composite of clinical, morphologic, immunophenotypic, and molecular features. To evaluate the ability of participating laboratories in the College of American Pathologists Interlaboratory Comparison Program in Non-Gynecologic Cytopathology to appropriately categorize lymphoproliferative lesions based solely on cytomorphologic criteria. Laboratory responses for lymph node aspirates were examined. All responses were based on review of glass slides without ancillary immunologic or molecular data available. The benchmarking data provided for each specific diagnosis were analyzed, with a focus on the performance for evaluation of lymphoproliferative lesions. Based on morphology alone, responses for lymph node aspirates in the Non-Gynecologic Cytopathology program were correct to the exact reference diagnosis for 87.1% of Hodgkin lymphoma. Non-Hodgkin lymphoma was identified in 69.5% of the large cell non-Hodgkin lymphoma cases, of which 66.8% were correctly classified as large cell type. Non-Hodgkin lymphoma was identified in 68.1% of non-Hodgkin lymphoma, other than large cell cases, and of these, 94.7% were identified as other than large cell type. The spectrum of specific responses was consistent for lymphoproliferative lesions, with a reasonable differential diagnosis based on cytomorphology alone, which, in practice, facilitates the appropriate choice of immunophenotypic markers and other ancillary studies.

  2. Algorithms and programs for solution of static and dynamic characteristics of counterflow heat exchangers with dissociating coolant

    International Nuclear Information System (INIS)

    Nitej, N.V.; Sharovarov, G.A.

    1982-01-01

    The method of estimation of counterflow heat exchanger characteristics is presented. Mathematical description of the processes is presented by the mass, energy and pulse conservation equations for both coolants and energy conservation equation for the wall which devides them. In the presence of chemical reactions the system is supplemented by equations, characterizing the kinetics of their progress. The methods of numerical solution of static and dynamic problems have been chosen, and the computer programs on the Fortran language have been developed. The schemes of solution of both problems are so constructed, that the conservation equations are placed in the main program, and such characteristics of the coolants as properties, heat transfer and friction coefficients, the mechanism of chemical reaction are concentrated in the subprogram unit. This allows to create the single method of solution with the flow of single-phase and two-phase coolants of abovecritical and supercritical paramters. The evaluation results of three heat exchangers are given: with heating of N 2 O 4 gas phase by heat of flue gas; with cooling of N 2 O 4 supercritical parameters by water; regenerator on N 2 O 4

  3. DOD Residential Proton Exchange Membrane (PEM) Fuel Cell Demonstration Program. Volume 1. Summary of the Fiscal Year 2001 Program

    National Research Council Canada - National Science Library

    White, Melissa K; Holcomb, Franklin H; Josefik, Nicholas M; Lux, Scott M; Binder, Michael J

    2004-01-01

    ...) fuel cells at military facilities. The objective of the program was to assess PEM fuel cells in supporting sustainability in military installations, increasing efficiency in installation, operation, and maintenance of fuel cells...

  4. Comparision of Fine Needle Aspiration Cytology and Fine Needle ...

    African Journals Online (AJOL)

    Background: Open biopsy of the breast used to be the main traditional method of diagnosis of breast lumps. Fine Needle Aspiration Cytology (FNAC) was later introduced which depends on suction and thus yields hemorrhagic material for cytological study.This study was undertaken to find out if there is a difference in ...

  5. The Prison Economy of Needles and Syringes: What Opportunities Exist for Blood Borne Virus Risk Reduction When Prices Are so High?

    Science.gov (United States)

    Treloar, Carla; McCredie, Luke; Lloyd, Andrew R

    2016-01-01

    A formal Needle and Syringe Program (NSP) is not provided in Australian prisons. Injecting equipment circulates in prisons as part of an informal and illegal economy. This paper examined how this economy generates blood-borne virus (BBV) risk and risk mitigation opportunities for inmates. The HITS-p cohort recruited New South Wales inmates who had reported ever injecting drugs and who had a negative HCV serological test within 12 months prior to enrolment. For this study, qualitative interviews were conducted with 30 participants enrolled in HITS-p. Participants included 10 women and were incarcerated in 12 prisons. A needle/syringe was nominated as being typically priced in the 'inside' prison economy at $100-$150, with a range of $50-$350. Purchase or hire of equipment was paid for in cash (including transactions that occurred outside prison) and in exchange for drugs and other commodities. A range of other resources was required to enable successful needle/syringe economies, especially relationships with visitors and other prisoners, and violence to ensure payment of debts. Strategies to mitigate BBV risk included retaining one needle/syringe for personal use while hiring out others, keeping drug use (and ownership of equipment) "quiet", stealing used equipment from the prison health clinic, and manufacture of syringes from other items available in the prison. The provision of prison NSP would disrupt the inside economies built around contraband needles/syringes, as well as minimise BBV risk. However, any model of prison NSP should be interrogated for any unanticipated markets that could be generated as a result of its regulatory practices.

  6. The Hydrodynamics of Needle-Free Intradermal Jet Injection

    Science.gov (United States)

    Simmons, Jonathan; Marston, Jeremy; Fisher, Paul; Broderick, Kate

    2017-11-01

    Needle-free methods of drug delivery circumvent the drawbacks associated with the use of hypodermic needles such as needle-stick injuries, needle-phobia, cross contamination and disposal. Furthermore, pioneering DNA-based vaccines that aim to treat cancer and fight infectious diseases, such as HIV, Ebola and Zika, require precise deposition into the skin to target the immune response producing cells found only in the epidermis and dermis. Intradermal (ID) delivery can be achieved using a needle and the Mantoux technique but this requires a highly skilled technician and so extensive use of DNA vaccines calls for an alternative method of delivery. One option is jet injection which has been employed in mass vaccination programs for intramuscular or subcutaneous delivery and is used by some diabetic patients to inject insulin. In this talk I will present results from our ongoing ex-vivo experimental study into ID jet injection. Ultra-high-speed imaging is used to visualize the process of the jet exiting the nozzle and striking excised skin. A skin bleb grows as liquid is deposited within the skin. I will discuss how the control parameters, such as the rheological profile of the liquid and the stand-off distance, influence the volume of liquid successfully delivered intradermally.

  7. A Study of the Veterinary Medicine Graduates of the WICHE Student Exchange Programs Showing the Relation of That Group to the Total Veterinarian Manpower of the WICHE States.

    Science.gov (United States)

    Western Interstate Commission for Higher Education, Boulder, CO.

    The relation of veterinarian manpower of the WICHE (Western Interstate Commission for Higher Education) states to the veterinary medicine graduates of the WICHE student exchange programs (SEP) is presented. The states included in the WICHE program are Alaska, Arizona, Hawaii, Idaho, Montana, Nevada, New Mexico, Oregon, Utah, and Wyoming. Tables…

  8. Histological observation for needle-tissue interactions.

    Science.gov (United States)

    Nakagawa, Yoshiyuki; Koseki, Yoshihiko

    2013-01-01

    We histologically investigated tissue fractures and deformations caused by ex vivo needle insertions. The tissue was formalin-fixed while the needle remained in the tissue. Following removal of the needle, the tissue was microtomed, stained, and observed microscopically. This method enabled observations of cellular and tissular conditions where deformations caused by needle insertions were approximately preserved. For this study, our novel method presents preliminary findings related with tissue fractures and the orientation of needle blade relative to muscle fibers. When the needle blade was perpendicular to the muscle fiber, transfiber fractures and relatively large longitudinal deformations occurred. When the needle blade was parallel to the muscle fiber, interfiber fractures and relatively small longitudinal deformations occurred. This made a significant difference in the resistance force of the needle insertions.

  9. Ultrasound guided percutaneous fine needle aspiration biopsy ...

    African Journals Online (AJOL)

    2011-06-15

    )-guided percutaneous fine needle aspiration biopsy (PFNAB)/US-guided percutaneous needle core biopsy (PNCB) of abdominal lesions is efficacious in diagnosis, is helpful in treatment choice, to evaluate whether various ...

  10. Ultrasound guided percutaneous fine needle aspiration biopsy ...

    African Journals Online (AJOL)

    )-guided percutaneous fine needle aspiration biopsy (PFNAB)/US-guided percutaneous needle core biopsy (PNCB) of abdominal lesions is efficacious in diagnosis, is helpful in treatment choice, to evaluate whether various other investigations ...

  11. Transbronchial needle aspiration "by the books"

    Directory of Open Access Journals (Sweden)

    Kupeli Elif

    2011-01-01

    Full Text Available Background : Training for advanced bronchoscopic procedures is acquired during the interventional pulmonology (IP Fellowship. Unfortunately a number of such programs are small, limiting dissemination of formal training. Objective : We studied success of conventional transbronchial needle aspiration (C-TBNA in the hands of physicians without formal IP training. Methods : A technique of C-TBNA was learned solely from the literature, videos and practicing on inanimate models at "Hands-On" courses. Conventional TBNA with 21 and/or 19 gauge Smooth Shot Needles (Olympus® , Japan was performed on consecutive patients with undiagnosed mediastinal lymphadenopathy. Results : Thirty-four patients (male 23, mean age 54.9 ± 11.8 years underwent C-TBNA. Twenty-two patients had nodes larger than 20 mms. Suspected diagnoses were malignancy in 20 and nonmalignant conditions in 14. Final diagnoses were malignancy 17, sarcoidosis 4, reactive lymph nodes 12, and tuberculosis 1. Final diagnosis was established by C-TBNA in 14 (11 malignancy, 3 sarcoidosis; yield 41.1%, mediastinoscopy in 14, transthoracic needle aspiration in 3, peripheral lymph node biopsies in 2 and by endobronchial biopsy in 1. Nodal size had an impact on outcome (P = 0.000 while location did not (P = 0.33. C-TBNA was positive in 11/20 when malignancy was suspected (yield 55%, while 3/14 when benign diagnosis was suspected (yield 21.4% (P = 0.05. Sensitivity, specificity, PPV, NPV, and diagnostic accuracy were 66.6%, 100%, 100%, 65%, and 79.4%, respectively. There were no complications or scope damage. Conclusion : Conventional-TBNA can be learned by the books and by practicing on inanimate models without formal training and results similar to those published in the literature could be achieved.

  12. Dry needling — peripheral and central considerations

    OpenAIRE

    Dommerholt, Jan

    2011-01-01

    Dry needling is a common treatment technique in orthopedic manual physical therapy. Although various dry needling approaches exist, the more common and best supported approach targets myofascial trigger points. This article aims to place trigger point dry needling within the context of pain sciences. From a pain science perspective, trigger points are constant sources of peripheral nociceptive input leading to peripheral and central sensitization. Dry needling cannot only reverse some aspects...

  13. KINEMATICS FRICTION PAIR FOR EXAMPLE NEEDLE BEARINGS

    OpenAIRE

    Jerzy NACHIMOWICZ; Robert KORBUT

    2014-01-01

    The present study concerns certain phenomena that take place in the needle roller bearing. The friction that generates the anti-torque of a friction pair is the major factor that influences the needle bearing’s wear. In the needle bearing there occur two predominant types of friction: the rolling friction and the sliding friction, and both are subject to examination. The study presents recordings and analysis of the movements of all needle bearing’s rolling elements. The examination was carri...

  14. Autosizing Control Panel for Needle Bearing

    OpenAIRE

    Prof.A.R.Wadhekar,; Ms Jyoti R. Rajput

    2016-01-01

    A needle roller bearing is a bearing which uses small cylindrical rollers. Bearings are used to reduce friction of any rotating surface. Needle bearings have a large surface in contact with the bearing outer surfaces as compared to ball bearings. There is less added clearance(Diameter of the shaft and the diameter of the bearing are different) so they are much compact. The structure consists of a needle cage which contains the needle rollersthemselves and an outer race (The housin...

  15. Research peer exchange, 2014.

    Science.gov (United States)

    2017-08-01

    The WSDOT Research Peer Exchange was held in Olympia, Washington on May 13 and 14, 2014 and addressed Research Program and Project Management as described in the following paragraphs: Program Management There are numerous funding programs, standing c...

  16. Long-term evaluation of a hospital-based violence intervention program using a regional health information exchange.

    Science.gov (United States)

    Bell, Teresa M; Gilyan, Dannielle; Moore, Brian A; Martin, Joel; Ogbemudia, Blessing; McLaughlin, Briana E; Moore, Reilin; Simons, Clark J; Zarzaur, Ben L

    2018-01-01

    Hospital-based violence intervention programs (HVIP) aim to reduce violent-injury recidivism by providing intensive case management services to high-risk patients who were violently injured. Although HVIP have been found effective at reducing recidivism, few studies have sought to identity how long their effects last. Additionally, prior studies have been limited by the fact that HVIP typically rely on self-report or data within their own healthcare system to identify new injuries. Our aim was to quantify the long-term recidivism rate of participants in an HVIP program using more objective and comprehensive data from a regional health information exchange. The study included 328 patients enrolled in Prescription for Hope (RxH), an HVIP, between January 2009 and August 2016. We obtained RxH participants' emergency department (ED) encounter data from a regional health information exchange database from the date of hospital discharge to February 2017. Our primary outcome was violent-injury recidivism rate of the RxH program. We also examined reasons for ED visits that were unrelated to violent injury. We calculated a 4.4% recidivism rate based on 8 years of statewide data, containing 1,575 unique encounters. More than 96% of participants were matched in the state database. Of the 15 patients who recidivated, only five were admitted for their injury. More than half of new violence-related injuries were treated outside of the HVIP-affiliated trauma center. The most common reasons for ED visits were pain (718 encounters), followed by suspected complications or needing additional postoperative care (181 encounters). Substance abuse, unintentional injuries, and suicidal ideation were also frequent reasons for ED visits. The low, long-term recidivism rate for RxH indicates that HVIPs have enduring positive effects on the majority of participants. Our results suggest that HVIP may further benefit patients by partnering with organizations that work to prevent suicide

  17. Rhizosphaera Needle Disease of Fir

    Science.gov (United States)

    Mike Albers; Jana Albers; Jane Cummings-Carlson; Linda Haugen; Nancy Wenner

    1996-01-01

    Rhizosphaera pini is a common plant pathogen in the Lake States, Northeastern States and Canada. A closely related pathogen, Rhizosphaera kalkhoffii, causes a common needle blight on spruce and other conifers. R. pini is often considered to be a weak pathogen, occurring on stressed foliage or foliage killed by other causes. However, it has been observed causing...

  18. Changing the needle for lumbar punctures

    DEFF Research Database (Denmark)

    Engedal, Thorbjørn Søndergaard; Ording, H.; Vilholm, O. J.

    2015-01-01

    Objective: Post-dural puncture headache (PDPH) is a common complication of diagnostic lumbar punctures. Both a non-cutting needle design and the use of smaller size needles have been shown to greatly reduce the risk of PDPH. Nevertheless, larger cutting needles are still widely used. This study d...

  19. Curriculum design and German student exchange for Sino-German Bachelor program majored in optoelectronics engineering

    Science.gov (United States)

    Zheng, Jihong; Fuhrmann, Thomas; Xu, Boqing; Schreiner, Rupert; Jia, Hongzhi; Zhang, Wei; Wang, Ning; Seebauer, Gudrun; Zhu, Jiyan

    2017-08-01

    Different higher education backgrounds in China and Germany led to challenges in the curriculum design at the beginning of our cooperative bachelor program in Optoelectronics Engineering. We see challenges in different subject requirements from both sides and in the German language requirements for Chinese students. The curriculum was optimized according to the ASIIN criteria, which makes it acceptable and understandable by both countries. German students are integrated into the Chinese class and get the same lectures like their Chinese colleagues. Intercultural and curriculum challenges are successfully solved. The results are summarized to provide an example for other similar international programs.

  20. FACT SHEET ON THE INTERNATIONAL EDUCATIONAL EXCHANGE PROGRAM, 1946-1966.

    Science.gov (United States)

    Department of State, Washington, DC.

    A DESCRIPTION OF THE PRINCIPAL FEATURES OF THIS UNITED STATES DEPARTMENT OF STATE PROGRAM INCLUDES A RUNDOWN OF THE LEGISLATION WHICH INITIATED IT, A STATEMENT OF PURPOSE, AND ITS FINANCIAL ORGANIZATION. ITS HISTORY AND PHILOSOPHY ARE SET FORTH, ACCOMPANIED BY PERTINENT QUOTES. STATISTICAL INFORMATION AND A SELECTIVE BIBLIOGRAPHY ALSO ARE…

  1. Tattoo machines, needles and utilities.

    Science.gov (United States)

    Rosenkilde, Frank

    2015-01-01

    Starting out as a professional tattooist back in 1977 in Copenhagen, Denmark, Frank Rosenkilde has personally experienced the remarkable development of tattoo machines, needles and utilities: all the way from home-made equipment to industrial products of substantially improved quality. Machines can be constructed like the traditional dual-coil and single-coil machines or can be e-coil, rotary and hybrid machines, with the more convenient and precise rotary machines being the recent trend. This development has resulted in disposable needles and utilities. Newer machines are more easily kept clean and protected with foil to prevent crosscontaminations and infections. The machines and the tattooists' knowledge and awareness about prevention of infection have developed hand-in-hand. For decades, Frank Rosenkilde has been collecting tattoo machines. Part of his collection is presented here, supplemented by his personal notes. © 2015 S. Karger AG, Basel.

  2. TRIPLICATE SODIUM IODIDE GAMMA RAY MONITORS FOR THE SMALL COLUMN ION EXCHANGE PROGRAM

    Energy Technology Data Exchange (ETDEWEB)

    Couture, A.

    2011-09-20

    This technical report contains recommendations from the Analytical Development (AD) organization of the Savannah River National Laboratory (SRNL) for a system of triplicate Sodium Iodide (NaI) detectors to be used to monitor Cesium-137 ({sup 137}Cs) content of the Decontaminated Salt Solution (DSS) output of the Small Column Ion Exchange (SCIX) process. These detectors need to be gain stabilized with respect to temperature shifts since they will be installed on top of Tank 41 at the Savannah River Site (SRS). This will be accomplished using NaI crystals doped with the alpha-emitting isotope, Americium-241({sup 241}Am). Two energy regions of the detector output will be monitored using single-channel analyzers (SCAs), the {sup 137}Cs full-energy {gamma}-ray peak and the {sup 241}Am alpha peak. The count rate in the gamma peak region will be proportional to the {sup 137}Cs content in the DSS output. The constant rate of alpha decay in the NaI crystal will be monitored and used as feedback to adjust the high voltage supply to the detector in response to temperature variation. An analysis of theoretical {sup 137}Cs breakthrough curves was used to estimate the gamma activity expected in the DSS output during a single iteration of the process. Count rates arising from the DSS and background sources were predicted using Microshield modeling software. The current plan for shielding the detectors within an enclosure with four-inch thick steel walls should allow the detectors to operate with the sensitivity required to perform these measurements. Calibration, testing, and maintenance requirements for the detector system are outlined as well. The purpose of SCIX is to remove and concentrate high-level radioisotopes from SRS salt waste resulting in two waste streams. The concentrated high-level waste containing {sup 137}Cs will be sent to the Defense Waste Processing Facility (DWPF) for vitrification and the low-level DSS will be sent to the Saltstone Production Facility (SPF

  3. Triplicate Sodium Iodide Gamma Ray Monitors For The Small Column Ion Exchange Program

    International Nuclear Information System (INIS)

    Couture, A.

    2011-01-01

    This technical report contains recommendations from the Analytical Development (AD) organization of the Savannah River National Laboratory (SRNL) for a system of triplicate Sodium Iodide (NaI) detectors to be used to monitor Cesium-137 ( 137 Cs) content of the Decontaminated Salt Solution (DSS) output of the Small Column Ion Exchange (SCIX) process. These detectors need to be gain stabilized with respect to temperature shifts since they will be installed on top of Tank 41 at the Savannah River Site (SRS). This will be accomplished using NaI crystals doped with the alpha-emitting isotope, Americium-241( 241 Am). Two energy regions of the detector output will be monitored using single-channel analyzers (SCAs), the 137 Cs full-energy γ-ray peak and the 241 Am alpha peak. The count rate in the gamma peak region will be proportional to the 137 Cs content in the DSS output. The constant rate of alpha decay in the NaI crystal will be monitored and used as feedback to adjust the high voltage supply to the detector in response to temperature variation. An analysis of theoretical 137 Cs breakthrough curves was used to estimate the gamma activity expected in the DSS output during a single iteration of the process. Count rates arising from the DSS and background sources were predicted using Microshield modeling software. The current plan for shielding the detectors within an enclosure with four-inch thick steel walls should allow the detectors to operate with the sensitivity required to perform these measurements. Calibration, testing, and maintenance requirements for the detector system are outlined as well. The purpose of SCIX is to remove and concentrate high-level radioisotopes from SRS salt waste resulting in two waste streams. The concentrated high-level waste containing 137 Cs will be sent to the Defense Waste Processing Facility (DWPF) for vitrification and the low-level DSS will be sent to the Saltstone Production Facility (SPF) to be incorporated into grout.

  4. Conference of Radiation Control Program Directors, Inc. (CRCPD). A model for networking, cooperation, resource sharing, information exchange and regulation harmonization

    International Nuclear Information System (INIS)

    2007-01-01

    The focus of the talk will be to introduce the participants to the Conference of Radiation Control Program Directors, Inc. (CRCPD) and their proven methods for networking, information exchange, regulation development and standardization, and radiation protection guidance on emerging technologies. The presentation will describe how radiation control programs and staff from all 50 states in the US work collaboratively to ensure adequate radiation protection standards are uniformly applied throughout the country by pooling of resources and networking between all the states and the federal government, as well as with international members and partners. The products of CRCPD, such as the Suggested State Regulations along with other relevant informational documents, will be discussed along with how participants can access these products for use in their respective countries. CRCPD and its members represent a comprehensive radiation regulatory structure, covering all radiation sources and activities, (radioactive materials, licensing, registration, radioactive waste, x-ray, accelerators, emergency response, environmental monitoring, radon, and security). Networks are in place for all radiation issues. At the completion of this presentation, the participants will better understand a proven method to develop and implement a cooperative partnership with other countries. They will also gain knowledge on how to access CRCPD products that can be tailored for their own use and how to request technical assistance from membership. (author)

  5. Assessment, Diagnosis, and Treatment of HIV-Associated Neurocognitive Disorder: A Consensus Report of the Mind Exchange Program

    Science.gov (United States)

    Antinori, Andrea; Arendt, Gabriele; Grant, Igor; Letendre, Scott; Chair; Muñoz-Moreno, Jose A.; Eggers, Christian; Brew, Bruce; Brouillette, Marie-Josée; Bernal-Cano, Francisco; Carvalhal, Adriana; Christo, Paulo Pereira; Cinque, Paola; Cysique, Lucette; Ellis, Ronald; Everall, Ian; Gasnault, Jacques; Husstedt, Ingo; Korten, Volkan; Machala, Ladislav; Obermann, Mark; Ouakinin, Silvia; Podzamczer, Daniel; Portegies, Peter; Rackstraw, Simon; Rourke, Sean; Sherr, Lorraine; Streinu-Cercel, Adrian; Winston, Alan; Wojna, Valerie; Yazdanpannah, Yazdan; Arbess, Gordon; Baril, Jean-Guy; Begovac, Josip; Bergin, Colm; Bonfanti, Paolo; Bonora, Stefano; Brinkman, Kees; Canestri, Ana; Cholewińska-Szymańska, Graźyna; Chowers, Michal; Cooney, John; Corti, Marcelo; Doherty, Colin; Elbirt, Daniel; Esser, Stefan; Florence, Eric; Force, Gilles; Gill, John; Goffard, Jean-Christophe; Harrer, Thomas; Li, Patrick; de Kerckhove, Linos Van; Knecht, Gaby; Matsushita, Shuzo; Matulionyte, Raimonda; McConkey, Sam; Mouglignier, Antoine; Oka, Shinichi; Penalva, Augusto; Riesenberg, Klaris; Sambatakou, Helen; Tozzi, Valerio; Vassallo, Matteo; Wetterberg, Peter; Drapato, Alicia Wiercińska

    2013-01-01

    Many practical clinical questions regarding the management of human immunodeficiency virus (HIV)–associated neurocognitive disorder (HAND) remain unanswered. We sought to identify and develop practical answers to key clinical questions in HAND management. Sixty-six specialists from 30 countries provided input into the program, which was overseen by a steering committee. Fourteen questions were rated as being of greatest clinical importance. Answers were drafted by an expert group based on a comprehensive literature review. Sixty-three experts convened to determine consensus and level of evidence for the answers. Consensus was reached on all answers. For instance, good practice suggests that all HIV patients should be screened for HAND early in disease using standardized tools. Follow-up frequency depends on whether HAND is already present or whether clinical data suggest risk for developing HAND. Worsening neurocognitive impairment may trigger consideration of antiretroviral modification when other causes have been excluded. The Mind Exchange program provides practical guidance in the diagnosis, monitoring, and treatment of HAND. PMID:23175555

  6. The Conference of Radiation Control Program Directors (CRCPD): a model for networking, cooperation, information exchange and regulation harmonization

    International Nuclear Information System (INIS)

    Gilley, Debbie Bray

    2008-01-01

    This presentation will be to introduce to the participants the Conference of Radiation Control Program Directors, Inc. (CRCPD) and the proven methods used by this organization for networking, information exchange, regulation development and standardization, and radiation protection guidance on emerging technologies. The presentation will describe how radiation control programs and staff from all 50 states in the US work collaboratively to ensure adequate radiation protection standards are uniformly applied throughout the country through the pooling of resources and networking between all the states and the federal government, as well as with international members and partners. The products of CRCPD, such as the Suggested State Regulations along with other relevant informational documents, will be discussed along with how participants can access these products for use in their respective countries. CRCPD and its members represent a comprehensive radiation regulatory structure, covering radioactive materials, radioactive waste, X-ray, accelerators, emergency response, environmental monitoring, radon, and security. Networks are in place for all radiation issues. After the presentation, participants will better understand how to develop and implement a cooperative partnership with other countries. They will also know how to access our products that can be tailored for their own use. They will also be informed of how to contact CRCPD and request technical assistance from one of our 1000 members through our international outreach initiative. (author)

  7. Dry needling — peripheral and central considerations

    Science.gov (United States)

    Dommerholt, Jan

    2011-01-01

    Dry needling is a common treatment technique in orthopedic manual physical therapy. Although various dry needling approaches exist, the more common and best supported approach targets myofascial trigger points. This article aims to place trigger point dry needling within the context of pain sciences. From a pain science perspective, trigger points are constant sources of peripheral nociceptive input leading to peripheral and central sensitization. Dry needling cannot only reverse some aspects of central sensitization, it reduces local and referred pain, improves range of motion and muscle activation pattern, and alters the chemical environment of trigger points. Trigger point dry needling should be based on a thorough understanding of the scientific background of trigger points, the differences and similarities between active and latent trigger points, motor adaptation, and central sensitize application. Several outcome studies are included, as well as comments on dry needling and acupuncture. PMID:23115475

  8. Dry needling - peripheral and central considerations.

    Science.gov (United States)

    Dommerholt, Jan

    2011-11-01

    Dry needling is a common treatment technique in orthopedic manual physical therapy. Although various dry needling approaches exist, the more common and best supported approach targets myofascial trigger points. This article aims to place trigger point dry needling within the context of pain sciences. From a pain science perspective, trigger points are constant sources of peripheral nociceptive input leading to peripheral and central sensitization. Dry needling cannot only reverse some aspects of central sensitization, it reduces local and referred pain, improves range of motion and muscle activation pattern, and alters the chemical environment of trigger points. Trigger point dry needling should be based on a thorough understanding of the scientific background of trigger points, the differences and similarities between active and latent trigger points, motor adaptation, and central sensitize application. Several outcome studies are included, as well as comments on dry needling and acupuncture.

  9. Accuracy of Core Needle Biopsy Versus Fine Needle Aspiration Cytology for Diagnosing Salivary Gland Tumors

    Directory of Open Access Journals (Sweden)

    In Hye Song

    2015-03-01

    Full Text Available Background: Core needle biopsy is a relatively new technique used to diagnose salivary gland lesions, and its role in comparison with fine needle aspiration cytology needs to be refined. Methods: We compared the results of 228 ultrasound-guided core needle biopsy and 371 fine needle aspiration procedures performed on major salivary gland tumors with their postoperative histological diagnoses. Results: Core needle biopsy resulted in significantly higher sensitivity and more accurate tumor subtyping, especially for malignant tumors, than fine needle aspiration. No patient developed major complications after core needle biopsy. Conclusions: We recommend ultrasoundguided core needle biopsy as the primary diagnostic tool for the preoperative evaluation of patients with salivary gland lesions, especially when malignancy is suspected.

  10. Processing and Characterization of Needled Carbon Composites

    Science.gov (United States)

    2015-12-01

    are found in the literature of needled/felted carbon-carbon (C/C) composites for high temperature applications such as ablative aerospace heat shields...carbon fibers themselves. Reductions in tensile strength of up to 25% for stitched carbon/ epoxy composites have been reported, as have drops in elastic...laminate plane. Previous work with needled glass/ epoxy composites has shown a 270% improvement in Mode I interlaminar fracture toughness when needled

  11. Encouraging chemical biology / international academic exchange programs promoted by the Ministry of Education; Chemical biology no susume / monbusho ni yoru kokusai gakujutsu koryu no suishin ni tsuite

    Energy Technology Data Exchange (ETDEWEB)

    Imanaka, T. [Kyoto University, Kyoto (Japan)

    1998-06-01

    Described herein is encouraging chemical biology. Chemistry to elucidate fundamental elementary reactions involved in various phenomena and actual conditions of key molecules must be supported by physics for understanding behavior of electrons. The research themes attracting attention recently include sex pheromones of insects, photosynthesis, reactions involving antigens or antibodies, recognition of molecules, memorizing and leaning, and so on. Fundamentals of the life-related phenomena are being elucidated from structures of the related substances and reaction mechanisms involved by the NMR and X-ray diffraction analyses to determine structures of these substances and also by theoretical quantum chemistry to understand electron transfer phenomena within life-related molecules. Also described are international academic exchange programs promoted by the Ministry of Education. Academic researches for the pursuit of truth are crossing the borders in nature. International exchange to promote information exchange and joint researches by researchers of different nationalities pursuing common themes is indispensable for scientific development. The Ministry of Education has been promoting the international academic exchange programs by providing subsidies for international academic researches, promoting international exchange projects at various institutions, such as national universities, inter-university organizations and Japan Society for the Promotion of Science, and supporting scientific projects promoted by UNESCO. 1 fig., 1 tab.

  12. Motivation for International Exchange.

    Science.gov (United States)

    Brewer, Elizabeth

    An objective analysis of students' initial motivation for studying overseas was attempted by surveying students before they embarked on their exchange programs. Eighty-eight students who were planning to study in France, Great Britain, Germany, and the People's Republic of China were surveyed. The exchange program was sponsored by the University…

  13. Migration of innumerable chronically retained acupuncture needles

    Directory of Open Access Journals (Sweden)

    Frances Lazarow, MD

    2017-09-01

    Full Text Available We present a case of a 50-year-old female with a 2-day history of back and abdominal pain who was discovered to have innumerable chronically retained acupuncture needles, which had migrated throughout her abdomen and pelvis. Although many of these needles were in precarious positions, including the epidural space, renal parenchyma, small bowel, and vasculature, there was no evidence for acute injury. We also briefly discuss evidence for the magnetic resonance imaging compatibility of acupuncture needles. Although a rare complication, given the high frequency of acupuncture therapy in the United States, physicians must be aware of the potential for retained and migrated needles.

  14. Freehand biopsy guided by electromagnetic needle tracking

    DEFF Research Database (Denmark)

    Ewertsen, C; Nielsen, Marie Kristina Rue; Nielsen, M Bachmann

    2011-01-01

    To evaluate the overall accuracy and time spent on biopsy guided by electromagnetic needle tracking in a phantom compared with the standard technique of US-guided biopsy with an attached steering device. Furthermore, to evaluate off-plane biopsy guided by needle tracking.......To evaluate the overall accuracy and time spent on biopsy guided by electromagnetic needle tracking in a phantom compared with the standard technique of US-guided biopsy with an attached steering device. Furthermore, to evaluate off-plane biopsy guided by needle tracking....

  15. Experiences with a new breast localisation needle

    International Nuclear Information System (INIS)

    Hergan, K.; Amann, T.; Doringer, W.; Hollenstein, P.

    1990-01-01

    In view of the increasing number of biopsies of non-palpable lesions of the female breast we found an ideal localisation system in the Hawkins breast localisation needle. Localisation was successful without technical problems in 31 out of 34 patients. The special advantages of the needle are its stability in position and excellent manoeverability due to the construction of the needle. The very simple handling of the needle is an advantage not only for the radiologist but also for the surgeon. (orig.) [de

  16. How needless are Buffon's needles?

    International Nuclear Information System (INIS)

    Babović, Miloš; Babović, Vukota

    2013-01-01

    The study of statistical physics requires introductory preparation regarding probability theory. Understanding its fundamental concepts (randomness, distributions, fluctuations), and some experience in application of the basic concepts of statistics can be obtained in several ways. We found that the basic training in probability and statistics needed for physics and engineering study can be achieved by focusing on Buffon's needle problem. We believe this approach could help university specialists make study more efficient when probability and statistics play an important role. Buffon's experiment, with its convincing simplicity and flexibility, as well as its attractiveness, is in our opinion a useful tool in physics education at university level. (paper)

  17. Study on a program for support of women nuclear experts exchange and mutual utilization between WANO Korea and WANO Global

    International Nuclear Information System (INIS)

    Lee, Haecho; No, Inyoung; Min, Byungju

    2010-12-01

    - Nuclear energy, unlike other international human and material essential to mutual understanding, exchange of information and technology-intensive industries as required by an active technical cooperation and information exchange between countries is very important - WiN-Global Women's Domestic Nuclear specialists and professionals between countries belonging to the network for women through nuclear technology and nuclear power expansion opportunities to exchange information to secure a variety of communication

  18. Geographical and climatic limits of needle types of one- and two-needled pinyon pines.

    Science.gov (United States)

    Cole, Kenneth L; Fisher, Jessica; Arundel, Samantha T; Cannella, John; Swift, Sandra

    2008-02-01

    AIM: The geographical extent and climatic tolerances of one- and two-needled pinyon pines (Pinus subsect. Cembroides) are the focus of questions in taxonomy, palaeoclimatology and modelling of future distributions. The identification of these pines, traditionally classified by one- versus two-needled fascicles, is complicated by populations with both one- and two-needled fascicles on the same tree, and the description of two more recently described one-needled varieties: the fallax-type and californiarum-type. Because previous studies have suggested correlations between needle anatomy and climate, including anatomical plasticity reflecting annual precipitation, we approached this study at the level of the anatomy of individual pine needles rather than species. LOCATION: Western North America. METHODS: We synthesized available and new data from field and herbarium collections of needles to compile maps of their current distributions across western North America. Annual frequencies of needle types were compared with local precipitation histories for some stands. Historical North American climates were modelled on a c. 1-km grid using monthly temperature and precipitation values. A geospatial model (ClimLim), which analyses the effect of climate-modulated physiological and ecosystem processes, was used to rank the importance of seasonal climate variables in limiting the distributions of anatomical needle types. RESULTS: The pinyon needles were classified into four distinct types based upon the number of needles per fascicle, needle thickness and the number of stomatal rows and resin canals. The individual needles fit well into four categories of needle types, whereas some trees exhibit a mixture of two needle types. Trees from central Arizona containing a mixture of Pinus edulis and fallax-type needles increased their percentage of fallax-type needles following dry years. All four needle types occupy broader geographical regions with distinctive precipitation regimes

  19. Geographical and climatic limits of needle types of one- and two-needled pinyon pines

    Science.gov (United States)

    Cole, K.L.; Fisher, J.; Arundel, S.T.; Cannella, J.; Swift, S.

    2008-01-01

    Aim: The geographical extent and climatic tolerances of one- and two-needled pinyon pines (Pinus subsect. Cembroides) are the focus of questions in taxonomy, palaeoclimatology and modelling of future distributions. The identification of these pines, traditionally classified by one- versus two-needled fascicles, is complicated by populations with both one- and two-needled fascicles on the same tree, and the description of two more recently described one-needled varieties: the fallax-type and californiarum-type. Because previous studies have suggested correlations between needle anatomy and climate, including anatomical plasticity reflecting annual precipitation, we approached this study at the level of the anatomy of individual pine needles rather than species. Location: Western North America. Methods: We synthesized available and new data from field and herbarium collections of needles to compile maps of their current distributions across western North America. Annual frequencies of needle types were compared with local precipitation histories for some stands. Historical North American climates were modelled on a c. 1-km grid using monthly temperature and precipitation values. A geospatial model (ClimLim), which analyses the effect of climate-modulated physiological and ecosystem processes, was used to rank the importance of seasonal climate variables in limiting the distributions of anatomical needle types. Results: The pinyon needles were classified into four distinct types based upon the number of needles per fascicle, needle thickness and the number of stomatal rows and resin canals. The individual needles fit well into four categories of needle types, whereas some trees exhibit a mixture of two needle types. Trees from central Arizona containing a mixture of Pinus edulis and fallax-type needles increased their percentage of fallax-type needles following dry years. All four needle types occupy broader geographical regions with distinctive precipitation regimes

  20. Presentation of a needle for direct or percutaneous myocardium stem cells injection

    Directory of Open Access Journals (Sweden)

    Nathan Valle Soubihe Junior

    2013-09-01

    Full Text Available The instrument has a locking mechanism and is composed of an external needle with blunt tip, with multiple 0.5 mm diameter holes. Internally it is fitted with a mandrill needle, which can be mobilized inside occluding or releasing the lateral holes. The procedure for producing micro lesions is done by exchanging the blunt mandrill for a brush-mandrill, provided with micro bristles that are structurally designed to fill the holes with small exteriorization of bristles. As an option to brush mandrill there is a second self-expandable feather shaped mandrill.

  1. Freehand biopsy guided by electromagnetic needle tracking

    DEFF Research Database (Denmark)

    Ewertsen, C; Nielsen, Marie Kristina Rue; Nielsen, M Bachmann

    2011-01-01

    To evaluate the overall accuracy and time spent on biopsy guided by electromagnetic needle tracking in a phantom compared with the standard technique of US-guided biopsy with an attached steering device. Furthermore, to evaluate off-plane biopsy guided by needle tracking....

  2. Sugar export limits size of conifer needles

    DEFF Research Database (Denmark)

    Rademaker, Hanna; Zwieniecki, Maciej A.; Bohr, Tomas

    2017-01-01

    produced near the tip of long needles cannot be exported efficiently, because the pressure required to drive vascular flow would exceed the greatest available pressure (the osmotic pressure). This basic constraint leads to the formation of an inactive region of stagnant fluid near the needle tip, which...

  3. Investigating the Effects of Three Needling Parameters (Manipulation, Retention Time, and Insertion Site on Needling Sensation and Pain Profiles: A Study of Eight Deep Needling Interventions

    Directory of Open Access Journals (Sweden)

    Bertrand Y. K. Loyeung

    2013-01-01

    Full Text Available Introduction. In traditional Chinese acupuncture, needle sensation (deqi is purported to contribute to a therapeutic outcome. While researchers have attempted to define deqi qualitatively, few have examined the effects of needling parameters on its intensity. Methods. 24 healthy subjects completed eight interventions scheduled at least one week apart, which involved manual acupuncture to LI4 or a designated nonacupoint (NAP on the hand, with real or simulated manipulation each three minutes and needle retentions of one or 21 minutes. Intensities of needling sensation and pain were reported every three minutes and sensation qualities were reported post-intervention. Results. Immediately after needle insertion, similar levels of mean needle sensation and of pain were reported independent of intervention. At subsequent measurement times, only two interventions (one at LI4 and one at NAP maintained statistically significantly elevated needle sensation and pain scores and reported higher numbers of needle sensation descriptors. For both, the needle was retained for 21 minutes and manipulated every three minutes. Neither intervention differed significantly in terms of levels of pain, and needle sensation or numbers and qualities of needle sensation described. Conclusion. In this group of healthy subjects, the initial needling for all eight interventions elicited similar levels of needle sensation and pain. These levels were only maintained if there was ongoing of needle manipulation and retention of the needle. By contrast, the strength of needle sensation or pain experienced was independent of insertion site.

  4. KINEMATICS FRICTION PAIR FOR EXAMPLE NEEDLE BEARINGS

    Directory of Open Access Journals (Sweden)

    Jerzy NACHIMOWICZ

    2014-06-01

    Full Text Available The present study concerns certain phenomena that take place in the needle roller bearing. The friction that generates the anti-torque of a friction pair is the major factor that influences the needle bearing’s wear. In the needle bearing there occur two predominant types of friction: the rolling friction and the sliding friction, and both are subject to examination. The study presents recordings and analysis of the movements of all needle bearing’s rolling elements. The examination was carried out on a special examination stand that precisely emulates the real conditions of the needle bearing’s work. Carefully prepared examination methods enable recording and analyzing frictions in the bearing, estimating a sphere within which the load is shifted, and calculating the coefficient of friction.

  5. The Biological Safety of Stainless Steel Needles Used in Warm-Needling

    Directory of Open Access Journals (Sweden)

    Sabina Lim

    2010-01-01

    Full Text Available Warm-needling (also called thermo-acupuncture is a combination of acupuncture and moxibustion. Due to the intense heat involved, there have been concerns over the biological safety of the acuneedles used in the treatment. This paper reports two phases of a safety test. For a preliminary test, we compared the temperature change patterns of stainless steel (SS304 needles and traditional gold alloy needles, which have been increasingly replaced by the former. To verify the effects of the presence of coating materials, the main test involved three different kinds of SS304: silicone-coated, salicylic acid-coated and non-coated needles. Each group of needles was tested for pH level, heavy metals and UV absorbance spectrum along with biological tests on the cytotoxicity and hemolysis of the needle. All the tests on the extractants from the needles were negative. In the biological tests, each test result showed a significant difference from the positive control samples, while no significant difference was observed compared with the negative control samples. In the hemolysis tests, all samples satisfied the Korean Government Standards. All the results suggest that SS304 needles are biologically safe to be used in warm-needling, though they can be improved to perform as well as the gold alloy needles in terms of temperature fluctuations.

  6. Complications of transradial coronary angiography: a comparative study between using trocar needle and using bare needle

    International Nuclear Information System (INIS)

    Huang Chunyan; Wang Zhongjie; Chen Liyuan

    2010-01-01

    Objective: To analyze the advantages and disadvantages of trocar needle puncturing and bare needle puncturing in performing transradial coronary angiography through comparing the surgical successful rate and the occurrence of complications between two techniques. Methods: A total of 450 patients, who were scheduled to receive transradial coronary angiography, were enrolled in this study. The patients were randomly and equally divided into trocar needle group (n=225) and bare needle group (n=225). Transradial coronary angiography was performed in all patients, the technical success and the puncture-related complications were observed. The differences between two groups were compared and the results were statistically analyzed. Results: The successful rate of placing sheath pipe in trocar needle group and bare needle group was 98.22% (221/225) and 90.22% (203/225) respectively, the difference between two groups was statistically significant (P < 0.01). The mean time spent in puncturing in trocar needle group and bare needle group was (3.98 ± 0.54) min. and (6.13 ± 0.61) min. respectively (P < 0.01). In bare needle group the complications included radial artery spasm (4.89%, n=11), subcutaneous ecchymosis (6.67%, n=15) and local hematoma (3.56%, n=8), while in trocar group the complications included radial artery spasm (1.33%, n=3), subcutaneous ecchymosis (2.67%, n=6) and local hematoma (0.44%, n=1). Conclusion: In performing percutaneous coronary arteriography via radial arterial access the use of trocar needle is superior to the use of bare needle. Using trocar needle can reduce the operative time,increase the technical successful rate and lower the occurrence of complications. Therefore, using trocar needle to perform puncturing should be the technique of first choice. (authors)

  7. Evolución de la necesidad y cobertura de los programas de tratamiento con sustitutivos opioides e intercambio de jeringas en las prisiones españolas, 1992-2009 Evolution of the need and coverage of opioid substitution treatments and needle exchange programmes in Spanish prisons, 1992-2009

    Directory of Open Access Journals (Sweden)

    L. de la Fuente

    2012-10-01

    Full Text Available Introducción: España es de los pocos países que ha implementado generalizadamente tratamientos con sustitutivos opioides (TSO y programas de intercambio de jeringas (PIJ para los consumidores de drogas en prisión. Se analiza la evolución de la necesidad, cobertura y oportunidad temporal de estas intervenciones en España durante 1992-2009. Material y métodos: La provisión de intervenciones procede de publicaciones oficiales. La necesidad se estimó aplicando métodos multiplicativos a datos secundarios de varias fuentes. La cobertura se estimó mediante el cociente entre provisión y necesidad, y la diferencia entre dichas magnitudes. La oportunidad temporal se estimó observando el decalaje entre el acmé de incidencia de consumo, de infección por VIH o de necesidad y las curvas de provisión. Resultados: Los TSO comenzaron en 1992. Su máxima cobertura se alcanzó en 2002 (63.8%, y posteriormente se estabilizó. Los PIJ comenzaron en 1997. Su máxima cobertura se alcanzó en 2006 (20.7%, pero disminuyó a la mitad en dos años. El retraso entre el acmé de las epidemias o de la necesidad y la máxima cobertura de las intervenciones fue de 8-25 años. Conclusiones: La implementación de TSO y PIJ en las prisiones españolas supuso un enorme avance de salud pública, pero el retraso en su implementación y la baja cobertura de los PIJ pueden haber limitado mucho su impacto potencial en la mejora de la salud de los consumidores de drogas en prisión. El descenso de la cobertura de los PIJ a la mitad en los últimos años es especialmente preocupante para la evolución de las epidemias de VIH y hepatitis C.Introduction: Spain is one of the few countries to have widely implemented opioid substitution treatments (OST and needle exchange programmes (NEP for drug users in prison. We analyze the evolution of the need, coverage and the timelinessof these interventions in Spain between 1992 and 2009. Methods: Data on the provision of

  8. [Comparison of analgesic effects between subcutaneous penetration needling and straight needling of otopoints in the treatment of scapulohumeral periarthritis].

    Science.gov (United States)

    Jia, Chun-Sheng; Li, Xiao-Feng; Ma, Xiao-Shun; Shi, Jing; Liu, Er-Jun

    2008-10-01

    To confirm the better analgesic effect of subcutaneous penetration needling of otopoints for treatment of scapulohumeral periarthritis (SHPA) patients. Sixty-six SHPA patients were randomized into penetration-needling group (n = 33) and straight needling group (n = 33) by using pairing principle according to the sex and state of disease. Penetration needling was adopted for patients of penetration-needling group, while straight needling was used for those of straight needling group. Simplified McGill Scale was used to evaluate the patients' pain reactions. The pain integral scores were analyzed by using sequential test and pairing t test. Sequential test showed that the analgesic effect of penetration needling was significantly superior to that of straight needling 30 min after the treatment (P straight needling (P straight needling in the treatment of scapulohumeral periarthritis.

  9. Exchange transfusion

    Science.gov (United States)

    ... count in a newborn (neonatal polycythemia) Rh-induced hemolytic disease of the newborn Severe disturbances in body chemistry Severe newborn jaundice ... exchange transfusion was performed to treat. Alternative Names Hemolytic disease - exchange transfusion Patient ... Exchange transfusion - series References Costa ...

  10. Needle muscle biopsy and its application

    Directory of Open Access Journals (Sweden)

    Meng-long CHEN

    2015-07-01

    Full Text Available Needle muscle biopsy is a straightforward and reliable minimally-invasive technique. During the past century, the needle biopsy can provide adequate samples and the technique has gradually gained wider acceptance. Compared with open biopsy, needle biopsy is less traumatic, with low rate of complications, and is suitable for the identifications and evaluations of muscular dystrophy, inflammatory myopathies and systemic diseases involving muscles, specially for infants and young children. Domestic insiders should be encouraged to apply this technique. DOI: 10.3969/j.issn.1672-6731.2015.06.003 

  11. [Design thinking and clinical basic operation rules of the needling instrument for Shu-needle therapy].

    Science.gov (United States)

    Bao, Shou-qian

    2009-03-01

    Shu-needle therapy is a transcutaneous, close and micro-traumatic treatment technique founded on the basis of the theoretical system and the treatment thought of TCM acupuncture eye surgery. This therapy uses the needling instrument for Shu-needle therapy of original creation to relieve pressure, relieve tension, relieve spasm, relieve rigid, etc. for chronic pain, and achieves unique clinical therapeutic effects, and it originally creates the diagnostic and therapeutic system of special acupoint selection for human chronic pain and difficult diseases of the vegetable nerves and important treatment rules, in combination with modern medicine. Shu-needle therapy mixes TCM surgery with the cream of other special acupuncture therapies, and it is a new development and supplement of special needling therapies such as small needle knife, etc. and traditional acupuncture treatment.

  12. Integrating Metropolitan Planning Organizations into the State's Highway Safety Improvement Program (HSIP) : Proceedings from the Federal Highway Administration's Peer-to-Peer Exchange Program

    Science.gov (United States)

    2010-06-01

    This report provides a summary of a peer exchange sponsored by the Association of New York State Metropolitan Planning Organizations (NYSMPO) and the New York State Department of Transportation (NYSDOT). It also includes proposed next steps developed...

  13. Analysis of a Steerable Needle for Fine Needle Aspiration and Biopsy: Efficiency and Radiation Dose Compared With a Conventional Straight Needle.

    Science.gov (United States)

    Rutigliano, Sandra; Abraham, John A; Kenneally, Barry E; Zoga, Adam C; Nevalainen, Mika; Roedl, Johannes B

    Percutaneous computed tomography (CT)-guided needle biopsy has proven to be an efficacious method for sampling of many soft tissue lesions, especially deep-seated masses in the abdomen and pelvis. This study sought to test the potential for a novel steerable needle to improve localization and to reduce procedure duration and radiation dose compared with a conventional straight needle. A fresh, raw meat sample (lean bovine flank) was imbedded with cylindrical radiopaque and radiolucent obstacles designed to simulate vessels (radiolucent objects) and bones (radiopaque objects) on CT. A pit-containing olive (partially radiopaque) was imbedded beyond the obstacles to represent the target. Two sites on the surface of the meat were selected and marked to determine initial needle placement. Two radiologists with different levels of experience proceeded to position a straight needle and the steerable needle from each skin site to the target using CT guidance as efficiently as possible, avoiding the obstacles. The total positioning time, the number of CT scans required for positioning, and the number of repositioning events (partial withdrawal followed by advancement) were tracked for the straight and steerable needles. For the straight needle, total time to reach the target was 499 to 667 seconds (mean, 592 seconds); for the steerable needle, total time to reach the target was 281 to 343 seconds (mean, 309 seconds), on average, 48% lower. The number of CT scans needed for needle positioning averaged 6.25 for the straight needle and 3.5 for the steerable needle, which is 44% lower. Repositioning events (withdrawing and readvancing the needle) ranged from 3 to 10 for the straight needle (mean, 6.5) and 0 for the steerable needle. Using an in vitro model embedded with obstacles, the steerable needle performed better than a straight needle with regard to procedure time, needle repositioning events, and CT scans required for placement.

  14. Pine needle abortion biomarker detected in bovine fetal fluids

    Science.gov (United States)

    Pine needle abortion is a naturally occurring condition in free-range cattle caused by the consumption of pine needles from select species of cypress, juniper, pine, and spruce trees. Confirmatory diagnosis of pine needle abortion has previously relied on a combined case history of pine needle cons...

  15. DRY NEEDLING INCREASES MUSCLE THICKNESS IN A SUBJECT WITH PERSISTENT MUSCLE DYSFUNCTION: A CASE REPORT.

    Science.gov (United States)

    Cross, Kevin M; McMurray, Michael

    2017-06-01

    Muscle dysfunction is very common following musculoskeletal injury. There is very little evidence to suggest that muscle function may be positively impacted by soft tissue interventions, such as dry needling. The purpose of this case report is to describe the immediate effect of dry needling on muscle thickness in a subject after shoulder surgery. A 22 year-old competitive gymnast presented seven months post shoulder surgery with significant impairments and functional limitations. Previous physical therapy focused on restoration of range of motion and strength using general exercise interventions, but the subject had persistent tightness and weakness of musculature of the shoulder complex. A subject-specific physical therapy program including manual physical therapy resulted in significant initial improvement, but lack of flexibility and weakness of the rotator cuff limited progress. Dry needling was used to address persistent myofascial trigger points. Immediately after dry needling the infraspinatus, the muscle's thickness was significantly improved as measured by rehabilitative ultrasound imaging. There was a corresponding increase in force production of external rotation at 90 degrees of abduction. Minimal research exists that validates the potential of dry needling on muscle function, as assessed by muscle thickness measured using rehabilitative ultrasound imaging. The results of this case report suggest that dry needling contributed to improvement in muscle thickness and strength in a subject with muscle dysfunction following an injury. 4.

  16. Intracranial sewing needles in an adult patient.

    Science.gov (United States)

    Kazanci, Atilla; Ozdemir, Halil Ibrahim; Kazanci, Burak; Kazanci, Dilek Ozturk; Er, Uygur

    2012-01-01

    A 37-year-old patient is reported with intracranial sewing needles, which were located in the right frontal lobe. Both clinical and radiological findings suggested that these needles must have been introduced in infancy before the closure of anterior fontanelle during an unsuccessful homicide. Usually intracranial foreign objects are placed due to penetrating trauma or surgical procedures. Child abuse has been known for centuries. Many types of physical traumas have been reported, especially in Western countries. In Iran, insertion of sewing needles into the brain aiming to kill the infant have been seen in a lot of cases. This situation takes part in a lot of Persian stories. We reported a 37-year-old man who had 2 intracranial sewing needles with unknown etiology.

  17. Inverse Kinematics of Concentric Tube Steerable Needles.

    Science.gov (United States)

    Sears, Patrick; Dupont, Pierre E

    2007-01-01

    Prior papers have introduced steerable needles composed of precurved concentric tubes. The curvature and extent of these needles can be controlled by the relative rotation and translation of the individual tubes. Under certain assumptions on the geometry and design of these needles, the forward kinematics problem can be solved in closed form by means of algebraic equations. The inverse kinematics problem, however, is not as straightforward owing to the nonlinear map between relative tube displacements and needle tip configuration as well as to the multiplicity of solutions as the number of tubes increases. This paper presents a general approach to solving the inverse kinematics problem using a pseudoinverse solution together with gradients of nullspace potential functions to enforce geometric and mechanical constraints.

  18. Cation Exchange Water Softeners

    Science.gov (United States)

    WaterSense released a notice of intent to develop a specification for cation exchange water softeners. The program has made the decision not to move forward with a spec at this time, but is making this information available.

  19. Barter exchanges

    DEFF Research Database (Denmark)

    Sudzina, Frantisek

    Although barter is often perceived as something that proceeded money, barter is still used. The focus of the paper is on barter exchanges. Barter exchanges are used both in developing countries as well as in developed countries (including the U.S.). They are used by both organizations...... and individuals. They usually allow to exchange good but some include also services. Some exchanges allow only for bi-directional barter, i.e. when only two parties are involved in the exchange. But probably most of the barter exchanges use barter money; this makes it easier to exchange goods and services...

  20. The Effect of Financial Leverage, Employee Stock Ownership Program and Firm Size on Firm Performance of Companies Listed in Indonesia Stock Exchange

    Directory of Open Access Journals (Sweden)

    Nurainun Bangun

    2017-07-01

    Full Text Available The purpose of this research is to examine and to obtain affected empirical evidence of financial leverage, firm size and employee stock ownership program (ESOP to firm performance in manufacturing company in Indonesian Stock Exchange on 2013-2015. Independent variables in this research are Financial Leverage (DER, Firm Size and Employee Stock Ownership Program (ESOP. Dependent variables in this research are Return on Assets (ROA and Return On Equity (ROE. The results Showed that the simultaneous test of three independent variables Significantly afftected to the ROA and ROE. The partial tests of Financial Leverage (proxy DER and Firm Size Significantly affected to ROA and ROE. But, the results Showed that the Employee Stock Ownership Program (ESOP did not Affect to ROA and ROE.

  1. Dry needling and exercise for chronic whiplash - a randomised controlled trial

    Directory of Open Access Journals (Sweden)

    Souvlis Tina

    2009-12-01

    Full Text Available Abstract Background Chronic whiplash is a common and costly problem. Sensory hypersensitivity is a feature of chronic whiplash that is associated with poor responsiveness to physical treatments such as exercise. Modalities such as dry-needling have shown some capacity to modulate sensory hypersensitivity, suggesting that when combined with advice and exercise, such an approach may be more effective in the management of chronic whiplash. The primary aim of this project is to investigate the effectiveness of dry-needling, advice and exercise for chronic whiplash. Method/Design A double-blind randomised controlled trial will be conducted. 120 participants with chronic whiplash, grade II will be randomised to receive either 1 dry-needling, advice and exercise or 2 sham dry-needling, advice and exercise. All participants will receive an educational booklet on whiplash. Participants who are randomised to Group 1 will receive 6 treatments of combined dry-needling and exercise delivered in the first 3 weeks of the 6 week program, and 4 treatments of exercise only in the last 3 weeks of the program. Participants randomised to Group 2 will receive an identical protocol, except that a sham dry-needling technique will be used instead of dry-needling. The primary outcome measures are the Neck Disability Index (NDI and participants' perceived recovery. Outcomes will be measured at 6, 12, 24 and 52 weeks after randomization by an assessor who is blind to the group allocation of the participants. In parallel, an economic analysis will be conducted. Discussion This trial will utilise high quality trial methodologies in accordance with CONSORT guidelines. The successful completion of this trial will provide evidence of the effectiveness and cost-effectiveness of a combined treatment approach for the management of chronic whiplash. Trial registration ACTRN12609000470291

  2. Matchmaker Exchange.

    Science.gov (United States)

    Sobreira, Nara L M; Arachchi, Harindra; Buske, Orion J; Chong, Jessica X; Hutton, Ben; Foreman, Julia; Schiettecatte, François; Groza, Tudor; Jacobsen, Julius O B; Haendel, Melissa A; Boycott, Kym M; Hamosh, Ada; Rehm, Heidi L

    2017-10-18

    In well over half of the individuals with rare disease who undergo clinical or research next-generation sequencing, the responsible gene cannot be determined. Some reasons for this relatively low yield include unappreciated phenotypic heterogeneity; locus heterogeneity; somatic and germline mosaicism; variants of uncertain functional significance; technically inaccessible areas of the genome; incorrect mode of inheritance investigated; and inadequate communication between clinicians and basic scientists with knowledge of particular genes, proteins, or biological systems. To facilitate such communication and improve the search for patients or model organisms with similar phenotypes and variants in specific candidate genes, we have developed the Matchmaker Exchange (MME). MME was created to establish a federated network connecting databases of genomic and phenotypic data using a common application programming interface (API). To date, seven databases can exchange data using the API (GeneMatcher, PhenomeCentral, DECIPHER, MyGene2, matchbox, Australian Genomics Health Alliance Patient Archive, and Monarch Initiative; the latter included for model organism matching). This article guides usage of the MME for rare disease gene discovery. © 2017 by John Wiley & Sons, Inc. Copyright © 2017 John Wiley and Sons, Inc.

  3. Utilization of No-Kor needles for slit-micrografting.

    Science.gov (United States)

    Brandy, D A; Meshkin, M

    1994-05-01

    This article introduces the No-Kor vented needle as an excellent tool for micrograft recipient site development. To show that No-Kor vented needles are better than conventional hypodermic needles (with and without dilators) and Bard Parker blades for micrograft recipient site development. Comparisons with hypodermic needles (with and without dilators) and Bard Parker blade incisions are made. When compared with hypodermic needles (with and without dilators, the No-Kor needles show less scarring, allow easier placement, take less surgical time, and are less expensive. When compared with Bard Parker blade incisions, the No-Kor needles demonstrate less scarring, more precision, and less expense. The No-Kor vented needle is an excellent tool for the development of micrograft recipient sites. It demonstrates advantages over both hypodermic needles and Bard Parker blades.

  4. High HIV incidence among persons who inject drugs in Pakistan: greater risk with needle sharing and injecting frequently among the homeless.

    Science.gov (United States)

    Samo, Rab Nawaz; Altaf, Arshad; Agha, Ajmal; Pasha, Omrana; Rozi, Shafquat; Memon, Ashraf; Azam, Saleem; Blevins, Meridith; Vermund, Sten H; Shah, Sharaf Ali

    2013-01-01

    The incidence of HIV among persons who inject drugs (PWIDU) has fallen in many nations, likely due to successes of clean needle/syringe exchange and substance abuse treatment and service programs. However in Pakistan, prevalence rates for PWID have risen dramatically. In several cities, prevalence exceeded 20% by 2009 compared to a 2003 baseline of just 0.5%. However, no cohort study of PWID has ever been conducted. We enrolled a cohort of 636 HIV seronegative PWID registered with three drop-in centers that focus on risk reduction and basic social services in Karachi. Recruitment began in 2009 (March to June) and PWID were followed for two years. We measured incidence rates and risk factors associated with HIV seroconversion. Incidence of HIV was 12.4 per 100 person-years (95% exact Poisson confidence interval [CI]: 10.3-14.9). We followed 474 of 636 HIV seronegative persons (74.5%) for two years, an annual loss to follow-up of homeless (ARR = 1.7, 95%CI:1.1, 2.5, p = 0.009), and daily injection of drugs (ARR = 1.1, 95%CI:1.0, 1.3, p = 0.04). Even though all members of the cohort of PWID were attending risk reduction programs, the HIV incidence rate was very high in Karachi from 2009-2011. The project budget was low, yet we were able to retain three-quarters of the population over two years. Absence of opiate substitution therapy and incomplete needle/syringe exchange coverage undermines success in HIV risk reduction.

  5. The cellularity yield of three different 22-gauge endoscopic ultrasound fine needle aspiration needles.

    Science.gov (United States)

    Othman, Mohamed O; Abdelfatah, Mohamed M; Padilla, Osvaldo; Hussinat, Maha; Elhanafi, Sherif; Eloliby, Mohamed; Torabi, Alireza; Hakim, Nawar; Boman, Darius A

    2017-05-01

    Endoscopic ultrasound (EUS) fine needle aspiration (FNA) is an integral part in the diagnosis of pancreatic, intestinal and extra-intestinal masses or lesions. There is no clear data on the superiority of the core biopsy needle over standard 22-gauge needles. The aim of this study is to prospectively compare the cellularity yield of three commonly used 22-gauge FNA needles available in the US market. This is a prospective, randomized study comparing the cellularity yield of three commercially available EUS needles (two standard FNA needles and core biopsy needle). Two blinded pathologists evaluated the cytology specimens based on an already agreed upon cytology score. We included adult patients (18-80 years old) who presented to our endoscopy unit for FNA of pancreatic or extrapancreatic masses. 109 patients (57 F, 52 M) were recruited to the study, 88 lesions were pancreatic lesions. 39 patients were recruited in the EZ Shot 2™ group, 36 in the Procore ® group and 34 in the Expect™ group. The average cellularity score and the mean number of passes (SD) were not different between the three needles; P = 0.91 and P = 0.16, respectively. There was no difference between the three needles in obtaining an onsite diagnosis (P = 0.627) and no difference in reported adverse events between the three groups. The cellularity yields, the mean number of passes and reported adverse events were similar in the three compared 22-gauge needles. Diagn. Cytopathol. 2017;45:426-432. © 2017 Wiley Periodicals, Inc. © 2017 Wiley Periodicals, Inc.

  6. TU-H-CAMPUS-JeP3-05: Adaptive Determination of Needle Sequence HDR Prostate Brachytherapy with Divergent Needle-By-Needle Delivery

    International Nuclear Information System (INIS)

    Borot de Battisti, M; Maenhout, M; Lagendijk, J J W; Van Vulpen, M; Moerland, M A; Denis de Senneville, B; Hautvast, G; Binnekamp, D

    2016-01-01

    Purpose: To develop a new method which adaptively determines the optimal needle insertion sequence for HDR prostate brachytherapy involving divergent needle-by-needle dose delivery by e.g. a robotic device. A needle insertion sequence is calculated at the beginning of the intervention and updated after each needle insertion with feedback on needle positioning errors. Methods: Needle positioning errors and anatomy changes may occur during HDR brachytherapy which can lead to errors in the delivered dose. A novel strategy was developed to calculate and update the needle sequence and the dose plan after each needle insertion with feedback on needle positioning errors. The dose plan optimization was performed by numerical simulations. The proposed needle sequence determination optimizes the final dose distribution based on the dose coverage impact of each needle. This impact is predicted stochastically by needle insertion simulations. HDR procedures were simulated with varying number of needle insertions (4 to 12) using 11 patient MR data-sets with PTV, prostate, urethra, bladder and rectum delineated. Needle positioning errors were modeled by random normally distributed angulation errors (standard deviation of 3 mm at the needle’s tip). The final dose parameters were compared in the situations where the needle with the largest vs. the smallest dose coverage impact was selected at each insertion. Results: Over all scenarios, the percentage of clinically acceptable final dose distribution improved when the needle selected had the largest dose coverage impact (91%) compared to the smallest (88%). The differences were larger for few (4 to 6) needle insertions (maximum difference scenario: 79% vs. 60%). The computation time of the needle sequence optimization was below 60s. Conclusion: A new adaptive needle sequence determination for HDR prostate brachytherapy was developed. Coupled to adaptive planning, the selection of the needle with the largest dose coverage impact

  7. EUS needle identification comparison and evaluation (NICE) study (with videos)

    Science.gov (United States)

    Tang, Shou-jiang; Vilmann, Andreas S.; Saftoiu, Adrian; Wang, Wanmei; Streba, Costin; Fink, Peter P.; Griswold, Michael; Wu, Ruonan; Dietrich, Christoph F.; Jenssen, Christian; Hocke, Michael; Kantowski, Marcus; Pohl, Jürgen; Fockens, Paul; Annema, Jouke T.; van der Heijden, Erik H.F.M.; Havre, Roald Flesland; Pham, Khanh Do-Cong; Kunda, Rastislav; Deprez, Pierre H.; Mariana, Jinga; Vazquez-Sequeiros, Enrique; Larghi, Alberto; Buscarini, Elisabetta; Fusaroli, Pietro; Lahav, Maor; Puri, Rajesh; Garg, Pramod Kumar; Sharma, Malay; Maluf-Filho, Fauze; Sahai, Anand; Brugge, William R.; Lee, Linda S.; Aslanian, Harry R.; Wang, Andrew Y.; Shami, Vanessa M.; Markowitz, Arnold; Siddiqui, Ali A.; Mishra, Girish; Scheiman, James M.; Isenberg, Gerard; Siddiqui, Uzma D.; Shah, Raj J.; Buxbaum, James; Watson, Rabindra R.; Willingham, Field F.; Bhutani, Manoop S.; Levy, Michael J.; Harris, Cynthia; Wallace, Michael B.; Nolsøe, Christian Pállson; Lorentzen, Torben; Bang, Niels; Sørensen, Sten Mellerup; Gilja, Odd Helge; D’Onofrio, Mirko; Piscaglia, Fabio; Gritzmann, Norbert; Radzina, Maija; Sparchez, Zeno Adrian; Sidhu, Paul S.; Freeman, Simon; McCowan, Timothy C.; de Araujo, Cyrillo Rodrigues; Patel, Akash; del Ali, Mohammad A; Campbell, Garth; Chen, Edward; Vilmann, Peter

    2017-01-01

    Background and Aims Endoscopic ultrasound (EUS)-guided fine-needle aspiration (FNA) or biopsy is widely practiced. Optimal sonographic visualization of the needle is critical for image guided interventions. There are several commercially available needles but no bench-top testing and direct comparison of these needles to reveal their inherent echogenicity. The aims are to provide bench-top data that can be used to guide clinical applications and to promote future device research and development. Methods Descriptive bench-top testing and comparison. Bench-top testing of 8 commonly used EUS-FNA needles (all of 22 gauge in size): SonoTip Pro Control (Medi-Globe); Expect Slimline (Boston Scientific); EchoTip, EchoTip Ultra, EchoTip ProCore High Definition, (Cook Medical); ClearView (Conmed); EZ Shot2 (Olympus); BNX (Beacon Endoscopic); and 2 new prototype needles that are coated by echogenic polymers by Medi-Globe. Blinded evaluation of standardized and unedited videos by 43 EUS endoscopists and 17 radiologists specialized in gastrointestinal ultrasound examination that is unfamiliar with EUS needle devices. Results There was no significant difference in the ratings and rankings of these needles between endosonographers and radiologists. Overall, one prototype needle was rated as the best, ranking 10% to 40% higher than all other needles (p<0.01). Among the commercially available needles, the EchoTip Ultra needle and the ClearView needle were top choices. The EZ Shot 2 needle was ranked statistically lower than other needles (30%–75% worse, p<0.001). Conclusions All FNA needles have their inherent and different echogenicity, and these differences are similarly recognized by EUS endoscopists and radiologists. Needles with polymeric coating from the entire shaft to the needle tip may offer better echogenicity. PMID:26873530

  8. Medically relevant ElectroNeedle technology development.

    Energy Technology Data Exchange (ETDEWEB)

    Schmidt, Carrie Frances; Thomas, Michael Loren; McClain, Jaime L.; Harper, Jason C.; Achyuthan, Komandoor E.; Ten Eyck, Gregory A.

    2008-11-01

    ElectroNeedles technology was developed as part of an earlier Grand Challenge effort on Bio-Micro Fuel Cell project. During this earlier work, the fabrication of the ElectroNeedles was accomplished along with proof-of-concept work on several electrochemically active analytes such as glucose, quinone and ferricyanide. Additionally, earlier work demonstrated technology potential in the field of immunosensors by specifically detecting Troponin, a cardiac biomarker. The current work focused upon fabrication process reproducibility of the ElectroNeedles and then using the devices to sensitively detect p-cresol, a biomarker for kidney failure or nephrotoxicity. Valuable lessons were learned regarding fabrication assurance and quality. The detection of p-cresol was accomplished by electrochemistry as well as using fluorescence to benchmark ElectroNeedles performance. Results from these studies will serve as a guide for the future fabrication processes involving ElectroNeedles as well as provide the groundwork necessary to expand technology applications. One paper has been accepted for publication acknowledging LDRD funding (K. E. Achyuthan et al, Comb. Chem. & HTS, 2008). We are exploring the scope for a second paper describing the applications potential of this technology.

  9. Effect of Blinding With a New Pragmatic Placebo Needle

    Science.gov (United States)

    Liu, Baoyan; Xu, Huanfang; Ma, Rui; Mo, Qian; Yan, Shiyan; Liu, Zhishun

    2014-01-01

    Abstract Placebo control is a useful method for determining the efficacy of a therapy. In acupuncture researches, the preferred method for placebo control is acupuncture using a placebo needle that has a blunt tip and achieves no skin penetration. We performed a crossover study to validate the blinding effect of a new type of placebo needle. Sixty volunteers were randomized to receive acupuncture using 2 types of needles with different sequences: sequence AB, involving first the pragmatic placebo needle and then the real needle, and sequence BA, in a reverse order. Placebo acupuncture was performed by administering the placebo needle through an adhesive pad without skin penetration on the acupoints LI4, RN12, BL25, and BL36. Real acupuncture was performed by needling through the pad and penetrating the skin to 15 mm using a real needle on the same acupoints. The acupuncture was administered every other day with 3 sessions for 1 type of needle. The primary outcome was the perception of needle penetration. Besides degree of acupuncture pain, type, and degree of needle sensation, needle acceptability and factors influencing the subject blinding effect were assessed. Needle penetration was felt by 100%, 90% (54/60), 88.3% (53/60), and 95% (57/60) of volunteers receiving placebo acupuncture and 98.3% (59/60), 96.7% (58/60), 95% (57/60), and 95% (57/60) of volunteers receiving real acupuncture on LI4, RN12, BL25, and BL36, respectively. Differences of the volunteers’ perception of needle penetration between the placebo needle and real needle were not significant for the 4 acupoints (all P > 0.05). Volunteers experienced fewer distension sensations (P = 0.01), a lower degree of needle sensation (P = 0.007), and less pain (P = 0.006) during placebo acupuncture than during real acupuncture. The placebo needle was more easily accepted than the real needle (OR = 1.63, 95% CI, 1.01–2.64). The influences of age, sex, educational level, acupuncture

  10. Unconsciously penetrated foreign body (sewing needle injury

    Directory of Open Access Journals (Sweden)

    Musa Zorlu

    2015-12-01

    Full Text Available The injuries of foreign body in work accidents are often seen in adults. It could be diagnosed in different parts of the body. In this study, a twenty year old woman who had a pain in the left axillary region of the body, a constraint on joint movement coordination center and high fever is not aware of the needle in her body was examined. There was a sewing needle penetrates to pectoralis major muscle at the left axillary region of the body seen in her anterior posterior chest x ray. It was removed under general anesthesia using fluoroscopy. Patients could have different clinical complaints due to the mobile sewing needle in different parts of the body. The questioning of her profession history and physical examination would help for diagnosis of the complaints in the evaluation of patients. [J Contemp Med 2015; 5(4.000: 265-268

  11. Disturbance ecology of high-elevation five-needle pine ecosystems in western North America

    Science.gov (United States)

    Elizabeth M. Campbell; Robert E. Keane; Evan R. Larson; Michael P. Murray; Anna W. Schoettle; Carmen Wong

    2011-01-01

    This paper synthesizes existing information about the disturbance ecology of high-elevation five-needle pine ecosystems, describing disturbances regimes, how they are changing or are expected to change, and the implications for ecosystem persistence. As it provides the context for ecosystem conservation/restoration programs, we devote particular attention to wildfire...

  12. Dry needling versus acupuncture: the ongoing debate.

    Science.gov (United States)

    Zhou, Kehua; Ma, Yan; Brogan, Michael S

    2015-12-01

    Although Western medical acupuncture (WMA) is commonly practised in the UK, a particular approach called dry needling (DN) is becoming increasingly popular in other countries. The legitimacy of the use of DN by conventional non-physician healthcare professionals is questioned by acupuncturists. This article describes the ongoing debate over the practice of DN between physical therapists and acupuncturists, with a particular emphasis on the USA. DN and acupuncture share many similarities but may differ in certain aspects. Currently, little information is available from the literature regarding the relationship between the two needling techniques. Through reviewing their origins, theory, and practice, we found that DN and acupuncture overlap in terms of needling technique with solid filiform needles as well as some fundamental theories. Both WMA and DN are based on modern biomedical understandings of the human body, although DN arguably represents only one subcategory of WMA. The increasing volume of research into needling therapy explains its growing popularity in the musculoskeletal field including sports medicine. To resolve the debate over DN practice, we call for the establishment of a regulatory body to accredit DN courses and a formal, comprehensive educational component and training for healthcare professionals who are not physicians or acupuncturists. Because of the close relationship between DN and acupuncture, collaboration rather than dispute between acupuncturists and other healthcare professionals should be encouraged with respect to education, research, and practice for the benefit of patients with musculoskeletal conditions who require needling therapy. Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://www.bmj.com/company/products-services/rights-and-licensing/

  13. VLER Health Exchange by Area

    Data.gov (United States)

    Department of Veterans Affairs — “Connect Your Docs” through the Virtual Lifetime Electronic Record (VLER) Health Exchange program. This program gives VA and community health care providers secure...

  14. 77 FR 20687 - 30-Day Notice of Proposed Information Collection: Form DS-3097, Exchange Visitor Program Annual...

    Science.gov (United States)

    2012-04-05

    ...: Extension of a Currently Approved Collection. Originating Office: Educational and Cultural Affairs, Office... engaged and an evaluation of program effectiveness. Program sponsors include government agencies, academic institutions, and private sector not-for-profit and for-profit entities. Methodology Annual reports are...

  15. Penetrating cardiac injury following sewing needle ingestion.

    Science.gov (United States)

    Sobnach, Sanju; Castillo, Franco; Blanco Vinent, René; Kahn, Delawir; Bhyat, Ahmed

    2011-07-01

    Penetrating cardiac injuries are common in South Africa. Reports describing traumatic lesions to the heart caused by caudo-cranial migration of ingested foreign bodies are however extremely rare. Delayed presentation and intervention are associated with poor outcome in these patients; cardiac tamponade remains the most serious complication. We present the case of a 19 year-old man who sustained a left ventricular injury after intentionally swallowing eight sewing needles. The impacted needle was removed through a median sternotomy and the patient recovered uneventfully. Copyright © 2011 Australasian Society of Cardiac and Thoracic Surgeons and the Cardiac Society of Australia and New Zealand. Published by Elsevier B.V. All rights reserved.

  16. [King Injo's disease and burnt needle therapy].

    Science.gov (United States)

    Kim, In-Sook

    2004-12-01

    This paper investigates an interrelationship between burnt needle therapy and King Injo's disease. From 1633 (Year 11 in King Injo's reign) to May 5, 1649 (Year 27 in King Injo's reign), right before his death, King Injo was treated with burnt needles by Yi Hyeongik, an acupuncturist when the king had health problems. This study arises from two questions: why was King Injo often treated with burnt needles? and what effect did burnt needles have?Burnt needle therapy is a combined form of acupuncture and moxibustion. Yi Hyeongik was famous for eradicating pathogenic factors. He was appointed as a doctor in the Royal Hospital. The medical definition for pathogenic factors is that they are disease-causing factors. Understanding the pathogenic factor for King Injo's disease could make it possible to find the interrelationship between burnt needles and the king's disease. In the Joseon ear, the prevalent belief about diseases was that diseases could be caused by homeopathic magic. Some people thought homeopathic magic caused King Injo's disease. The actual reasons for King Injo's disease were the participation in the excessive rites of Queen Mother Inmok's funeral and the constant oppression from the Ching Dynasty after disgraceful defeat in the war. When King Injo started to be sick, homeopathic magic cases were found in the royal palace. The king's incurable disease was believed to have happened as a result of homeopathic magic. King Injo's suspicion toward Princess Jeongmyeong derived from her mother, Queen Mother Inmok. Moral justification for King Injo's coup was Gwanghaegun or Prince Gwanghae's immoral conduct toward Queen Mothe Inmok. After he was installed, King Injo obeyed the Queen Mother and showed her every attention. Meanwhile, he treated Princess Jeongmyeong with respect, maximized the moral justification for the coup, and solidified the royal authority. However, constant rebellions and treasons threatened King Injo. The king suspected that Queen Mother

  17. King Injo's Disease and Burnt Needle Therapy

    Directory of Open Access Journals (Sweden)

    KIM In-Sook

    2004-12-01

    Full Text Available This paper investigates an interrelationship between burnt needle therapy(번침 and King Injo'sdisease. From 1633 (Year 11 in King Injo's reign to May 5, 1649 (Year 27 King in Injo's reign, right before his death, King Injo(인조 was treated with burnt needles by Yi Hyeongik(이형익, an acupuncturist when the king had health problems. This study arises from two questions: why was King Injo often treated with burnt needles? and what effect did burnt needles have? Burnt needle therapy is a combined form of acupuncture and moxibustion. Yi Hyeongik was famous for eradicating pathogenic factors. He was appointed as a doctor in the Royal Hospital. The medical definition for pathogenic factors is that they are disease-causing factors. Understanding the pathogenic factor for King Injo's disease could make it possible to find the interrelationship between burnt needles and the king's disease. In the Joseon era, the prevalent belief about diseases was that diseases could be caused by homeopathic magic. Some people thought homeopathic magic caused King Injo's disease.  The actual reasons for King Injo's disease were the participation in the excessive rites of Queen Mother Inmok's funeral and the constant oppression from the Ching Dynasty after disgraceful defeat in the war. When King Injo started to be sick, homeopathic magic cases were found in the royal palace. The king's incurable disease was believed to have happened as a result of homeopathic magic. King Injo's suspicion toward Princess Jeongmyeong(정명공주 derived from her mother, Queen Mother Inmok(인목대비. Moral justification for King Injo's coup was Gwanghaegun(광해군 or Prince Gwanghae's immoral conduct toward Queen Mother Inmok. After he was installed, King Injo obeyed the Queen Mother and showed her every attention. Meanwhile, he treated Princess Jeongmyeong with respect, maximized the moral justification for the coup, and solidified the royal authority. However, constant

  18. Syringe and Needle Size, Syringe Type, Vacuum Generation, and Needle Control in Aspiration Procedures

    International Nuclear Information System (INIS)

    Haseler, Luke J.; Sibbitt, Randy R.; Sibbitt, Wilmer L.; Michael, Adrian A.; Gasparovic, Charles M.; Bankhurst, Arthur D.

    2011-01-01

    Purpose: Syringes are used for diagnostic fluid aspiration and fine-needle aspiration biopsy in interventional procedures. We determined the benefits, disadvantages, and patient safety implications of syringe and needle size on vacuum generation, hand force requirements, biopsy/fluid yield, and needle control during aspiration procedures. Materials and Methods: Different sizes (1, 3, 5, 10, and 20 ml) of the conventional syringe and aspirating mechanical safety syringe, the reciprocating procedure device, were studied. Twenty operators performed aspiration procedures with the following outcomes measured: (1) vacuum (torr), (2) time to vacuum (s), (3) hand force to generate vacuum (torr-cm 2 ), (4) operator difficulty during aspiration, (5) biopsy yield (mg), and (6) operator control of the needle tip position (mm). Results: Vacuum increased tissue biopsy yield at all needle diameters (P < 0.002). Twenty-milliliter syringes achieved a vacuum of −517 torr but required far more strength to aspirate, and resulted in significant loss of needle control (P < 0.002). The 10-ml syringe generated only 15% less vacuum (−435 torr) than the 20-ml device and required much less hand strength. The mechanical syringe generated identical vacuum at all syringe sizes with less hand force (P < 0.002) and provided significantly enhanced needle control (P < 0.002). Conclusions: To optimize patient safety and control of the needle, and to maximize fluid and tissue yield during aspiration procedures, a two-handed technique and the smallest syringe size adequate for the procedure should be used. If precise needle control or one-handed operation is required, a mechanical safety syringe should be considered.

  19. Etiological studies on needle fungi associated with semimature-tissue needle blight of eastern white pine

    Energy Technology Data Exchange (ETDEWEB)

    Linzon, S.N.

    1968-01-01

    The results of etiological studies on semimature-tissue needle blight (SNB) of eastern white pine (Pinus strobus L.) deny any role to needle fungi as the primary cause. No mycelium was found in newly blighted semimature tissue by either cultural or histological methods. Mycelia of several saprophytic fungi were isolated from the blighted portions of current year needles about 2 weeks after the onset of SNB, and fruit-bodies of different organisms were found to occur both in the interior and on the exterior of blighted needles about 4 weeks after the first occurrence of disease symptoms. The morphological development of apothecia of C. acuum was studied. Hysterothecia of Lophodermium spp. (L. pinastri (Schrad. ex Fr.) Chev. and L. nitens Darker) occurred ubiquitously on fallen white pine needles. Aerial spore trapping showed that ascospores of C. acuum were abundant, those of Lophodermium spp. were prevalent, and those of H. desmazierii were practically non-existent in the area investigated. There was little coincidence between the occurrence of SNB outbreaks and peak populations of air-borne ascospores of these fungi. Ascospore suspensions and needles bearing fructifications of C. acuum and Lophodermium spp. were used to inoculate the newly developing needles of SNB-susceptible and non-susceptible field trees and potted seedlings, but the typical symptoms of SNB did not develop as a result of these inoculations. Two fungicides, captan and Bordeaux mixture, were applied to SNB-susceptible and non-susceptible field trees throughout the growing season, but neither fungicide prevented the symptoms of SNB from appearing on the new needles of susceptible trees at the same time as they appeared on untreated susceptible trees in the area. The fungicidal sprays, however, did prevent saprophyttic fungi from invading blighted portions of the needles. It is concluded from this investigation that SNB is not a disease of fungal origin. 19 references, 17 figures, 3 tables.

  20. Heat exchanger

    International Nuclear Information System (INIS)

    Dostatni, A.W.; Dostatni, Michel.

    1976-01-01

    In the main patent, a description was given of a heat exchanger with an exchange surface in preformed sheet metal designed for the high pressure and temperature service particularly encountered in nuclear pressurized water reactors and which is characterised by the fact that it is composed of at least one exchanger bundle sealed in a containment, the said bundle or bundles being composed of numerous juxtaposed individual compartments whose exchange faces are built of preformed sheet metal. The present addendun certificate concerns shapes of bundles and their positioning methods in the exchanger containment enabling its compactness to be increased [fr

  1. Effect of ponderosa pine needle litter on grass seedling survival.

    Science.gov (United States)

    Burt R. McConnell; Justin G. Smith

    1971-01-01

    Hard fescue survival rates were followed for 6 years on four different pine needle treatment plots. Needle litter had a significant effect on initial survival of fescue seedlings, but subsequent losses undoubtedly resulted from the interaction of many factors.

  2. Morphology of jack pine and tamarack needles in dense stands.

    Science.gov (United States)

    Terry F. Strong; J. Zavitkovski

    1978-01-01

    Effects of position in the crown on needle morphology and surface area were studied. Needle length, surface area, and dry weight increased and specific needs area decreased from the lower to the upper third of the crown.

  3. Ultrasound-Guided Fine Needle Aspiration Biopsy of the Thyroid

    Science.gov (United States)

    ... Physician Resources Professions Site Index A-Z Ultrasound-Guided Fine Needle Aspiration Biopsy of the Thyroid An ... Aspiration Biopsy of the Thyroid? What is Ultrasound-Guided Fine Needle Aspiration Biopsy of the Thyroid? During ...

  4. Intervention study of needle stick injury in Iran

    International Nuclear Information System (INIS)

    Mobasherizadeh, Sina; Abne-Shahidi, Sayed A.; Mohammadi, Nazafarin A.; Abazari, Fereshteh

    2005-01-01

    Injury resulting from contaminated sharp devices among health care workers (HCWs) is one of the most important concerns in medical centers. This can lead to dangerous infections such as human immunodeficiency virus, hepatitis B virus and hepatitis C virus among such people. The documentation of needle stick injuries started in Sadi Hospital, Isfahan, Iran in 2003, and our objective was to study cases of injuries by sharp devices before and after the implementation of intervention methods. In an intervention survey of the type of before and after study, we studied injuries by needle and other sharp devices among 87 HCWs in Sadi Hospital, a private hospital in Isfahan, Iran, during the years 2003-2004. The groups under study were workers and paramedical staff; and the wards under study included surgery, internal, lab, x-ray and laundry. We entered and evaluated the data in SPSS software. In the first phase of the study in 2003, 55.2% of those injured had been injured by sharp devices. After intervention in 2004, this percentage was reduced to 19.5% (p < 0.05). At the beginning of the study, 26.4% of the injured had been injured by sharp devices more than twice, and at the end of the study this number was reduced to 2.3% (p < 0.05). Also, injuries resulting from recapping were 45.8% at the beginning of the study, which was reduced to 5.9% at the end (p < 0.05). With regard to this study and other studies carried out in other countries, a large number of injuries by contaminated sharp devices can be prevented by implementing suitable educational programs regarding disposal of sharp devices, and by using safe needle devices. (author)

  5. [Thinking and status of research on acupoint temperature sensor needle].

    Science.gov (United States)

    Xu, Gang; Yang, Hua-yuan; Liu, Tang-yi; Gao, Ming; Hu, Yin-e

    2010-09-01

    ABSTRACT Based on acupoint temperature sensor needle related literatures, the development and the applications of temperature sensor needle and the measuring instrument which is used for measuring the temperature of acupoints are introduced in the present paper. This paper summarizes the basic structure and measuring principle of temperature sensor needle; it also summarizes the hardware and measuring procedures of the measuring instrument. According to the characteristics of the temperature sensor needle, this paper states its broad applications and development trend.

  6. STUDY & ANALYSIS OF MICRO NEEDLE MATERIAL BY ANSYS

    OpenAIRE

    Santosh Kumar Singh*, Prabhat Sinha, N.N. Singh, Nagendra Kumar

    2017-01-01

    In this research the concept of design and analysis, silicon and stainless steel based on hollow micro-needles for transdermal drug delivery(TDD) have been evaluated by Using ANSYS & computational fluid dynamic (CFD), structural. Micro fluidic analysis has performed to ensure the micro-needles design suitability for Drug delivery. The effect of axial and transverse load on single and micro-needle array has investigated with the mechanical properties of micro-needle. The analysis predicte...

  7. Top-down, bottom-up, and around the jungle gym: a social exchange and networks approach to engaging afterschool programs in implementing evidence-based practices.

    Science.gov (United States)

    Smith, Emilie Phillips; Wise, Eileen; Rosen, Howard; Rosen, Alison; Childs, Sharon; McManus, Margaret

    2014-06-01

    This paper uses concepts from social networks and social exchange theories to describe the implementation of evidence-based practices in afterschool programs. The members of the LEGACY Together Afterschool Project team have been involved in conducting collaborative research to migrate a behavioral strategy that has been documented to reduce disruptive behaviors in classroom settings to a new setting-that of afterschool programs. We adapted the Paxis Institute's version of the Good Behavior Game to afterschool settings which differ from in-school settings, including more fluid attendance, multiple age groupings, diverse activities that may take place simultaneously, and differences in staff training and experience (Barrish et al. in J Appl Behav Anal 2(2):119-124, 1969; Embry et al. in The Pax Good Behavior Game. Hazelden, Center City, 2003; Hynes et al. in J Child Serv 4(3):4-20, 2009; Kellam et al. in Drug Alcohol Depend 95:S5-S28, 2008; Tingstrom et al. in Behav Modif 30(2):225-253, 2006). This paper presents the experiences of the three adult groups involved in the implementation process who give first-person accounts of implementation: (1) university-based scientist-practitioners, (2) community partners who trained and provided technical assistance/coaching, and (3) an afterschool program administrator. We introduce here the AIMS model used to frame the implementation process conceptualized by this town-gown collaborative team. AIMS builds upon previous work in implementation science using four phases in which the three collaborators have overlapping roles: approach/engagement, implementation, monitoring, and sustainability. Within all four phases principles of Social Exchange Theory and Social Network Theory are highlighted.

  8. Breaking down barriers: Review of an Inside/Out prison exchange program in a jail setting, Part 1

    Directory of Open Access Journals (Sweden)

    Tanja C Link

    2016-06-01

    Full Text Available The traditional criminal justice curriculum typically covers the three c’s – cops, courts, and corrections. In addition, students can usually choose from a variety of discipline-related special topics courses to satisfy the requirements of their major or minor in criminal justice. However, what is missing from most curricula for future criminal justice professionals is face-to-face interaction with the very individuals they will spend a good part of their careers with – those who have been accused of or sentenced for law-breaking behaviors. The current paper describes the planning and implementation of an Inside Out Prison Exchange Course in a jail setting and offers an analysis of students’ course evaluation to discuss the benefits of this educational experience. The results are intended to highlight the importance and benefit of non-traditional educational experiences for better criminal justice professionals and creating opportunities for viable reentry.

  9. Atypical chest pain: Needles in a haystack

    African Journals Online (AJOL)

    be needles of the type used for sewing. An electrocardiogram showed a minor interference pattern but no ischaemic changes, and the results of blood tests were all within normal limits. An echocardiogram confirmed the presence of foreign bodies in the myocardium (Fig. 2). There was no evidence of valvular defects.

  10. Biocompatible 3D printed magnetic micro needles

    KAUST Repository

    Kavaldzhiev, Mincho

    2017-01-30

    Biocompatible functional materials play a significant role in drug delivery, tissue engineering and single cell analysis. We utilized 3D printing to produce high aspect ratio polymer resist microneedles on a silicon substrate and functionalized them by iron coating. Two-photon polymerization lithography has been used for printing cylindrical, pyramidal, and conical needles from a drop cast IP-DIP resist. Experiments with cells were conducted with cylindrical microneedles with 630 ± 15 nm in diameter with an aspect ratio of 1:10 and pitch of 12 μm. The needles have been arranged in square shaped arrays with various dimensions. The iron coating of the needles was 120 ± 15 nm thick and has isotropic magnetic behavior. The chemical composition and oxidation state were determined using energy electron loss spectroscopy, revealing a mixture of iron and Fe3O4 clusters. A biocompatibility assessment was performed through fluorescence microscopy using calcein/EthD-1 live/dead assay. The results show a very high biocompatibility of the iron coated needle arrays. This study provides a strategy to obtain electromagnetically functional microneedles that benefit from the flexibility in terms of geometry and shape of 3D printing. Potential applications are in areas like tissue engineering, single cell analysis or drug delivery.

  11. Genetics studies involving Swiss needle cast.

    Science.gov (United States)

    R. Johnson; F. Temel; K. Jayawickrama

    2002-01-01

    Three studies were analyzed this year that examined genetic aspects of Swiss needle cast (SNC) tolerance . Families sampled across the Siuslaw National forest showed differences in foliage health traits, but very little of the variation could be explained by environmental or climatic conditions at the parent tree location. Five test sites of the Nehalem series of...

  12. Acylated flavonol glycosides from Larix needles

    NARCIS (Netherlands)

    Niemann, Gerard J.

    2006-01-01

    Kaempferol-3-p-coumarylglucoside (KCG) was isolated from ether fractions of acetone-extracted freeze-dried needles of all larch species investigated. In each case, KCG was found as one of the main flavonoids, whereas often a variety of closely related, acylated flavonoids was present in either

  13. Extrapulmonary tuberculosis: Fine needle aspiration cytology ...

    African Journals Online (AJOL)

    Background: The increasing prevalence of extrapulmonary manifestation of tuberculosis with the HIV scourge is a cause for concern. Objective: To determine the role of fine needle aspiration cytology (FNAC) in the diagnosis of extrapulmonary tuberculosis. Patients and Methods: This is a consecutive 9-year analysis of ...

  14. The Single Needle Lockstitch Machine. Module 1.

    Science.gov (United States)

    South Carolina State Dept. of Education, Columbia. Office of Vocational Education.

    This module on parts of the machine, one in a series on the single needle lockstitch sewing machine for student self-study, contains eight sections. Each section contains the following parts: an introduction, directions, an objective, learning activities, student information, student self-check, check-out activities, and an instructor's final…

  15. Relationship between needle phobia and dental anxiety

    NARCIS (Netherlands)

    Majstorovic, M.; Veerkamp, J.S.J.

    2004-01-01

    Purpose: This cross-sectional study aimed to explain the nature of needle phobia and its relationship in dental phobic children with evidence on age-related differences. Methods: The study used 2,865 patients (52% boys, 48% girls), 4 to 11 years old (mean=7.18 years). The patient sample included

  16. Intracranially Retained Sewing Needle in a Child: Does the Rust on the Needle Have any Implication?

    Science.gov (United States)

    Balak, Naci; Güçlü, Güçlühan; Karaca, Ismail; Aksoy, Sema

    2008-04-01

    A penetrating injury with a sewing needle is a rare phenomenon. The pathophysiological mechanism of late epilepsy after penetrating injuries is not clear. A 10-year-old female child had a seizure. An X-ray study of the skull and the cranial computed tomography scans showed a foreign object retained in the skull cavity. She was intact on neurological examination. Electroencephalogram (EEG) showed that there was bioelectrical disorganization in both hemispheres, being more prominent on the left side. A right posterior frontal median craniotomy was performed in order not to retract the left hemisphere within the interhemispheric fissure and the sewing needle was removed successfully. The sewing needle was rusted. The reason for the patient's seizure, 10 years after the injury, may be the corrosion of the sewing needle and rust formation in this case.

  17. 21 CFR 868.5150 - Anesthesia conduction needle.

    Science.gov (United States)

    2010-04-01

    ... 21 Food and Drugs 8 2010-04-01 2010-04-01 false Anesthesia conduction needle. 868.5150 Section 868...) MEDICAL DEVICES ANESTHESIOLOGY DEVICES Therapeutic Devices § 868.5150 Anesthesia conduction needle. (a) Identification. An anesthesia conduction needle is a device used to inject local anesthetics into a patient to...

  18. 21 CFR 884.6100 - Assisted reproduction needles.

    Science.gov (United States)

    2010-04-01

    ... 21 Food and Drugs 8 2010-04-01 2010-04-01 false Assisted reproduction needles. 884.6100 Section... (CONTINUED) MEDICAL DEVICES OBSTETRICAL AND GYNECOLOGICAL DEVICES Assisted Reproduction Devices § 884.6100 Assisted reproduction needles. (a) Identification. Assisted reproduction needles are devices used in in...

  19. Exploring needle anxiety among students attending a Nigerian ...

    African Journals Online (AJOL)

    Needle anxiety, a form of specific phobia refers to an intense fear of needles used for various medical procedures. It may result in the avoidance of such needle-involving procedures like intramuscular injections or vaccinations. About 4-8% of children and adolescents are said to generally suffer some form of anxiety.

  20. Diversity and identification of fungi associated with needles of Pinus ...

    African Journals Online (AJOL)

    Diversity and identification of fungi associated with needles of Pinus radiata in Tasmania. ... Previous studies of P. radiata have been based on fungal isolation and not direct PCR detection from needles. This research was a component ... Keywords: endophyte, environmental PCR, fungal isolation, MOTU, needle fungi, OTU ...

  1. Hollow needle used to cut metal honeycomb structures

    Science.gov (United States)

    Gregg, E. A.

    1966-01-01

    Hollow needle tool cuts metal honeycomb structures without damaging adjacent material. The hollow needle combines an electrostatic discharge and a stream of oxygen at a common point to effect rapid, accurate metal cutting. The tool design can be varied to use the hollow needle principle for cutting a variety of shapes.

  2. Percutaneous core needle biopsies: The yield in spinal tuberculosis ...

    African Journals Online (AJOL)

    Background. Current recommendations for spinal tuberculosis (TB) not requiring open surgery include core needle biopsy to confirm TB and determine drug sensitivity. International figures show the positive culture yield from core needle biopsies is 50 - 83%. Objectives. To (i) assess the yield of percutaneous needle ...

  3. A model-data intercomparison of CO2 exchange across North America: Results from the North American Carbon Program Site Synthesis

    Energy Technology Data Exchange (ETDEWEB)

    Schwalm, C.R.; Williams, C.A.; Schaefer, K.; Anderson, R.; Arain, M.A.; Baker, I.; Black, T.A.; Chen, G.; Ciais, P.; Davis, K. J.; Desai, A. R.; Dietze, M.; Dragoni, D.; Fischer, M.L.; Flanagan, L.B.; Grant, R.F.; Gu, L.; Hollinger, D.; Izaurralde, R.C.; Kucharik, C.; Lafleur, P.M.; Law, B.E.; Li, L.; Li, Z.; Liu, S.; Lokupitiya, E.; Luo, Y.; Ma, S.; Margolis, H.; Matamala, R.; McCaughey, H.; Monson, R. K.; Oechel, W. C.; Peng, C.; Poulter, B.; Price, D.T.; Riciutto, D.M.; Riley, W.J.; Sahoo, A.K.; Sprintsin, M.; Sun, J.; Tian, H.; Tonitto, C.; Verbeeck, H.; Verma, S.B.

    2011-06-01

    Our current understanding of terrestrial carbon processes is represented in various models used to integrate and scale measurements of CO{sub 2} exchange from remote sensing and other spatiotemporal data. Yet assessments are rarely conducted to determine how well models simulate carbon processes across vegetation types and environmental conditions. Using standardized data from the North American Carbon Program we compare observed and simulated monthly CO{sub 2} exchange from 44 eddy covariance flux towers in North America and 22 terrestrial biosphere models. The analysis period spans {approx}220 site-years, 10 biomes, and includes two large-scale drought events, providing a natural experiment to evaluate model skill as a function of drought and seasonality. We evaluate models' ability to simulate the seasonal cycle of CO{sub 2} exchange using multiple model skill metrics and analyze links between model characteristics, site history, and model skill. Overall model performance was poor; the difference between observations and simulations was {approx}10 times observational uncertainty, with forested ecosystems better predicted than nonforested. Model-data agreement was highest in summer and in temperate evergreen forests. In contrast, model performance declined in spring and fall, especially in ecosystems with large deciduous components, and in dry periods during the growing season. Models used across multiple biomes and sites, the mean model ensemble, and a model using assimilated parameter values showed high consistency with observations. Models with the highest skill across all biomes all used prescribed canopy phenology, calculated NEE as the difference between GPP and ecosystem respiration, and did not use a daily time step.

  4. Physical Properties Of Acupuncture Needles: Do Disposable Acupuncture Needles Break With Normal Use

    Science.gov (United States)

    2016-06-01

    Lamb shank, which has complexity of tendon, fascia, and bone , was used to mimic human tissue. The needles (n=10) were stressed in the tissue substitute...Synthetic tissues have been used in other studies11 but are too simplistic and do not mimic human tissue since they do not have muscle, fascia or bone ...They also deposit a sticky , oily residue on the acupuncture needles that is difficult to remove before viewing under a microscope11. Due to lack

  5. Acupuncture sensation during ultrasound guided acupuncture needling

    Science.gov (United States)

    Park, Jongbae J.; Akazawa, Margeaux; Ahn, Jaeki; Beckman-Harned, Selena; Lin, Feng-Chang; Lee, Kwangjae; Fine, Jason; Davis, Robert T; Langevin, Helene

    2014-01-01

    Background Although acupuncture sensation (also known as de qi) is a cornerstone of traditional acupuncture therapy, most research has accepted the traditional method of defining acupuncture sensation only through subjective patient reports rather than on any quantifiable physiological basis. Purpose To preliminarily investigate the frequency of key sensations experienced while needling to specific, quantifiable tissue levels (TLs) guided by ultrasound (US) imaging. Methods Five participants received needling at two acupuncture points and two control points at four TLs. US scans were used to determine when each TL was reached. Each volunteer completed 32 sets of modified Southampton Needle Sensation Questionnaires. Part one of the study tested sensations experienced at each TL and part two compared the effect of oscillation alone versus oscillation + rotation. Results In all volunteers, the frequency of pricking, sharp sensations was significantly greater in shallower TLs than deeper (p=0.007); the frequency of sensations described as deep, dull and heavy, as spreading, and as electric shocks was significantly greater in deeper TLs than shallower (p=0.002). Sensations experienced did not significantly differ between real and control points within each of three TLs (p>0.05) except TL 4 (p=0.006). The introduction of needle rotation significantly increased deep, dull, heavy sensations, but not pricking and sharp sensations; within each level, the spectrum of sensation experienced during both oscillation + rotation and oscillation alone did not significantly differ between acupuncture and control points. Conclusion The preliminary study indicates a strong connection between acupuncture sensation and both tissue depth and needle rotation. Furthermore, the new methodology has been proven feasible. A further study with an objective measurement is warranted. PMID:21642648

  6. Dual mode fuel injector with one piece needle valve member

    Science.gov (United States)

    Lawrence, Keith E.; Hinrichsen, Michael H.; Buckman, Colby

    2005-01-18

    A fuel injector includes a homogenous charge nozzle outlet set and a conventional nozzle outlet set controlled respectively by inner and outer needle value members. The homogenous charged nozzle outlet set is defined by an outer needle value member that is moveably positioned in an injector body, which defines the conventional nozzle outlet set. The inner needle valve member is positioned in the outer needle valve member. The outer needle valve member is a piece component that includes at least one external guide surface, an external value surface and an internal valve seat.

  7. NUTRIENTS CONCENTRATION AND RETRANSLOCATION IN THE Pinus taeda L. NEEDLES

    Directory of Open Access Journals (Sweden)

    Márcio Viera

    2010-03-01

    Full Text Available Aiming at evaluating nutrients concentration and retranslocation in the Pinus taeda L. needles, this study was developed in two stands, in native grass area and in second rotation area, with same species and same age (7.5 years old in Cambará do Sul, RS. The needles were collected in plants in four orthogonal points (South, North, East and West, sampled new needles, mature needles and old needles. The material was dried in a stove, milled and chemically analyzed (macro and micronutrients. The concentrations of N, P, K, B, Cu and Zn had decreased, of Ca, Fe and Mn increased, and the Mg and S have remained constant with the age of the needles. The retranslocation rate (old-new needles was more than 50% for most nutrients, except for Mn and Fe, showed that cumulative effect and the Ca reference element.

  8. Needle phobia: etiology, adverse consequences, and patient management.

    Science.gov (United States)

    Sokolowski, Chester J; Giovannitti, Joseph A; Boynes, Sean G

    2010-10-01

    Needle phobia has profound health, dental, societal, and legal implications, and severe psychological, social, and physiologic consequences. There is genetic evidence for the physiologic response to needle puncture, and a significant familial psychological component, showing evidence of inheritance. Needle phobia is also a learned behavior. The dental practitioner must recognize patients with needle phobia before the administration of local anesthetics to identify patients who are potentially reactive and to prevent untoward sequelae. Needle phobia is highly associated with avoidance behavior, and the dentist must exhibit compassion and respect. To avoid bradycardia, hypotension, unconsciousness, convulsions, and possibly asystole, oral premedication with benzodiazepines or other antianxiety agents must be considered for patients who are needle phobic. Management of needle phobiaeinduced syncope includes perioperative monitoring, oxygen administration, positioning, atropine, and vasopressors. Copyright © 2010 Elsevier Inc. All rights reserved.

  9. Ultrasound-guided fine needle aspiration versus core needle biopsy: comparison of post-biopsy hematoma rates and risk factors.

    Science.gov (United States)

    Chae, In Hye; Kim, Eun-Kyung; Moon, Hee Jung; Yoon, Jung Hyun; Park, Vivian Y; Kwak, Jin Young

    2017-07-01

    To compare post-biopsy hematoma rates between ultrasound guided-fine needle aspiration and ultrasound guided-core needle biopsy, and to investigate risk factors for post-biopsy hematoma. A total of 5304 thyroid nodules which underwent ultrasound guided biopsy were included in this retrospective study. We compared clinical and US features between patients with and without post-biopsy hematoma. Associations between these features and post-biopsy hematoma were analyzed. Post-biopsy hematoma rate was 0.8% (43/5121) for ultrasound guided-fine needle aspiration and 4.9% (9/183) for ultrasound guided-core needle biopsy (P guided-fine needle aspiration, gender, age, size, presence of vascularity, and suspicious US features were not associated with post-biopsy hematoma according to experience level. Post-biopsy hematoma occurred significantly more with ultrasound guided-core needle biopsy (9/179, 5.0%) than with ultrasound guided-fine needle aspiration (9/1138, 0.8%) (P guided-core needle biopsy was the only significant risk factor for post-biopsy hematoma (adjusted Odds Ratio, 6.458, P guided-core needle biopsy than in ultrasound guided-fine needle aspiration and ultrasound guided-core needle biopsy was the only independent factor of post-biopsy hematoma in thyroid nodules.

  10. Beyond NIMBYism: understanding community antipathy toward needle distribution services.

    Science.gov (United States)

    Davidson, Peter J; Howe, Mary

    2014-05-01

    In late 2007 the Homeless Youth Alliance (HYA), a small non-profit serving homeless youth in the Haight-Ashbury neighbourhood of San Francisco, USA, attempted to move its needle exchange service from a site on the Haight street commercial strip to a community centre approximately 150m away. The reaction of the housed community in the area was vocal and organized, and attracted considerable regional media attention. Ultimately, the plan to move the service had to be cancelled. The authors were, respectively, board chair and executive director of HYA at the time, and collected extensive field notes and media records as events unfolded. In this paper, we re-examine these events through literatures on contested spaces and on 'Not In My Backyard' (NIMBY) resistance to social services. We found that opposition to the service relocation had little to do with opposition to needle exchange itself, but rather was symptomatic of broader contestation over the identity and character of the neighbourhood. On the one hand, the neighbourhood had experienced skyrocketing housing prices over the past 40 years, making home ownership almost exclusively the province of the wealthy. On the other, the neighbourhood retains historic connections to the 1968 'Summer of Love', and the main commercial strip forms the centre of an active injecting drug use scene. As a consequence, many home owners who felt they had made considerable sacrifices to afford to live in the area expressed a sense of being "under siege" from drug users, and also believed that the City government pursues a deliberate policy of "keeping the Haight weird" by supporting ongoing service provision to drug users in the area. Housed residents responded to this situation in a variety of ways. One response was to engage in what we term 'defensive place making', in which a small part of a broader neighbourhood is reimagined as "a different neighbourhood". HYA's attempt to move from its current location to this 'different

  11. A plasma needle generates nitric oxide

    International Nuclear Information System (INIS)

    Stoffels, E; Gonzalvo, Y Aranda; Whitmore, T D; Seymour, D L; Rees, J A

    2006-01-01

    Generation of nitric oxide (NO) by a plasma needle is studied by means of mass spectrometry. The plasma needle is an atmospheric glow generated by a radio-frequency excitation in a mixture of helium and air. This source is used for the treatment of living tissues, and nitric oxide may be one of the most important active agents in plasma therapy. Efficient NO generation is of particular importance in the treatment of cardiovascular diseases. Mass spectrometric measurements have been performed under various plasma conditions; gas composition in the plasma and conversion of feed gases (nitrogen and oxygen) into other species has been studied. Up to 30% of the N 2 and O 2 input is consumed in the discharge, and NO has been identified as the main conversion product

  12. A simultaneous comparison of acupuncture needle and insulated needle sphenoidal electrodes for detection of anterior temporal spikes.

    Science.gov (United States)

    Chu, N S

    1992-01-01

    Uninsulated acupuncture needles have been used as sphenoidal electrodes, but the issue of insulation has not been adequately addressed. In this report, acupuncture needles and insulated needle sphenoidal electrodes were simultaneously used to compare the rate of spike detection, spike amplitude and distribution of maximal spikes from eight spike foci in seven patients with temporal lobe epilepsy. When compared to the insulated needle electrode, the acupuncture needle electrode was equally effective in spike detection, but spike amplitudes tended to be smaller and maximal spikes were less frequently encountered. Thus, insulation has an influence on the spikes recorded by the acupuncture needle sphenoidal electrode. However, the overall effect appears to be not sufficiently different from the insulated needle electrode for the purpose of detecting anterior temporal spikes in outpatient EEG recordings for the diagnosis of temporal lobe epilepsy.

  13. A retractable barb needle for drug darts

    Directory of Open Access Journals (Sweden)

    G.L. van Rooyen

    1973-07-01

    Full Text Available The mechanism and action of a new retractable barbneedle for drug darts are described. This dart needle is particularly successful in obviating unnecessary flight reactions andtrauma in darted animals, and facilitates the complete injection of the drug dose before the barb is retracted and the dart is dislogded from the animal. The whole process is completed within a few seconds and the expended dart can usually be retrieved in the immediate vicinity where the animal was darted.

  14. Fiscal deficits, exchange rate crises and inflation.

    NARCIS (Netherlands)

    van Wijnbergen, S.J.G.

    1991-01-01

    This article extends earlier work on unsustainable monetary policies by endogenizing the regime switch that ultimately restores sustainability. Within this framework we analyze exchange rate based stabilization programs and shows how constraints on Central Bank borrowing during an exchange crisis

  15. Dynamics of translational friction in needle-tissue interaction during needle insertion.

    Science.gov (United States)

    Asadian, Ali; Patel, Rajni V; Kermani, Mehrdad R

    2014-01-01

    In this study, a distributed approach to account for dynamic friction during needle insertion in soft tissue is presented. As is well known, friction is a complex nonlinear phenomenon. It appears that classical or static models are unable to capture some of the observations made in systems subjected to significant frictional effects. In needle insertion, translational friction would be a matter of importance when the needle is very flexible, or a stop-and-rotate motion profile at low insertion velocities is implemented, and thus, the system is repeatedly transitioned from a pre-sliding to a sliding mode and vice versa. In order to characterize friction components, a distributed version of the LuGre model in the state-space representation is adopted. This method also facilitates estimating cutting force in an intra-operative manner. To evaluate the performance of the proposed family of friction models, experiments were conducted on homogeneous artificial phantoms and animal tissue. The results illustrate that our approach enables us to represent the main features of friction which is a major force component in needle-tissue interaction during needle-based interventions.

  16. Pulsed photoelectric field emission from needle cathodes

    CERN Document Server

    Hernandez-Garcia, C

    2002-01-01

    Experiments have been carried out to measure the current emitted by tungsten needles with 1-mu m tip radius operated up to 50 kV. This corresponds to electric fields in the order of 10 sup 9 to 10 sup 1 sup 0 V/m. The needles were illuminated with 10-ns laser pulses at 532, 355 and 266 nm. The laser intensity was varied from 10 sup 1 sup 0 to 10 sup 1 sup 2 W/m sup 2 , limited by damage to the needle tip. The observed quantum efficiency depends on the wavelength and the electric field, approaching unity at the highest electric fields when illuminated at 266 nm. Peak currents up to 100 mA were observed in nanosecond pulses, corresponding to an estimated brightness of 10 sup 1 sup 6 A/m sup 2 sr. Since the current is controlled by the laser intensity, with only a weak voltage dependence, these cathodes can be used for infrared and ultraviolet tabletop free-electron lasers and other applications that demand short electron-beam pulses with high brightness.

  17. Liver abscess due to sewing needle perforation.

    Science.gov (United States)

    Jutte, Ewoud; Cense, Huib

    2010-08-03

    A 45-year-old female was admitted to the hospital with a 1-week history of right upper abdominal pain and nausea. Ultrasonography showed a thickened duodenum with infiltration. Subsequent gastroscopy did not reveal any abnormalities. CT scan showed a foreign body perforation at the duodenum and a liver abscess (Fig. 1A,B). A diagnostic laparoscopy was performed. During the operation, the abscess was drained (Fig. 2A,B) and a sewing needle was removed (Fig. 3A,B). The patient claimed to have no recollection of swallowing the needle and made a quick recovery. Although rare, gastrointestinal perforations due to ingested foreign bodies most frequently occur at ileocecal, rectosigmoid, and duodenal regions[1]. Sewing needle perforations into the liver have been reported in children, adults, and psychiatric cases. Symptoms can vary from mild gastric pain to signs of peritonitis[2]. "Wait and see" is recommended for asymptomatic patients with no complications. Symptomatic patients (e.g., liver abscess) need surgical intervention[1,2,3].

  18. A novel adaptive needle insertion sequencing for robotic, single needle MR-guided high-dose-rate prostate brachytherapy

    Science.gov (United States)

    Borot de Battisti, M.; de Senneville, B. Denis; Hautvast, G.; Binnekamp, D.; Lagendijk, J. J. W.; Maenhout, M.; Moerland, M. A.

    2017-05-01

    MR-guided high-dose-rate (HDR) brachytherapy has gained increasing interest as a treatment for patients with localized prostate cancer because of the superior value of MRI for tumor and surrounding tissues localization. To enable needle insertion into the prostate with the patient in the MR bore, a single needle MR-compatible robotic system involving needle-by-needle dose delivery has been developed at our institution. Throughout the intervention, dose delivery may be impaired by: (1) sub-optimal needle positioning caused by e.g. needle bending, (2) intra-operative internal organ motion such as prostate rotations or swelling, or intra-procedural rectum or bladder filling. This may result in failure to reach clinical constraints. To assess the first aforementioned challenge, a recent study from our research group demonstrated that the deposited dose may be greatly improved by real-time adaptive planning with feedback on the actual needle positioning. However, the needle insertion sequence is left to the doctor and therefore, this may result in sub-optimal dose delivery. In this manuscript, a new method is proposed to determine and update automatically the needle insertion sequence. This strategy is based on the determination of the most sensitive needle track. The sensitivity of a needle track is defined as its impact on the dose distribution in case of sub-optimal positioning. A stochastic criterion is thus presented to determine each needle track sensitivity based on needle insertion simulations. To assess the proposed sequencing strategy, HDR prostate brachytherapy was simulated on 11 patients with varying number of needle insertions. Sub-optimal needle positioning was simulated at each insertion (modeled by typical random angulation errors). In 91% of the scenarios, the dose distribution improved when the needle was inserted into the most compared to the least sensitive needle track. The computation time for sequencing was less than 6 s per needle track. The

  19. Heat exchanger

    International Nuclear Information System (INIS)

    Leigh, D.G.

    1976-01-01

    The arrangement described relates particularly to heat exchangers for use in fast reactor power plants, in which heat is extracted from the reactor core by primary liquid metal coolant and is then transferred to secondary liquid metal coolant by means of intermediate heat exchangers. One of the main requirements of such a system, if used in a pool type fast reactor, is that the pressure drop on the primary coolant side must be kept to a minimum consistent with the maintenance of a limited dynamic head in the pool vessel. The intermediate heat exchanger must also be compact enough to be accommodated in the reactor vessel, and the heat exchanger tubes must be available for inspection and the detection and plugging of leaks. If, however, the heat exchanger is located outside the reactor vessel, as in the case of a loop system reactor, a higher pressure drop on the primary coolant side is acceptable, and space restriction is less severe. An object of the arrangement described is to provide a method of heat exchange and a heat exchanger to meet these problems. A further object is to provide a method that ensures that excessive temperature variations are not imposed on welded tube joints by sudden changes in the primary coolant flow path. Full constructional details are given. (U.K.)

  20. Initial experience using a radiofrequency powered transseptal needle.

    Science.gov (United States)

    Smelley, Matthew P; Shah, Dipak P; Weisberg, Ian; Kim, Susan S; Lin, Albert C; Beshai, John F; Burke, Martin C; Knight, Bradley P

    2010-04-01

    The purpose of this study was to determine the safety and efficacy of using a novel radiofrequency (RF) powered transseptal needle to perform transseptal puncture (TSP). TSP was performed in 35 consecutive patients undergoing left-sided catheter ablation (mean age = 51 years; male = 71%) using a RF powered transseptal needle (NRG, Adult Large and Standard Curve C1, 71 cm, Baylis Medical Company, Inc.). Prior TSP had been performed in 34% of patients. The transseptal apparatus was positioned with the tip of the dilator engaged in the fossa ovalis. RF energy was delivered to the tip of the transseptal needle using a proprietary RF generator at 10 W for 2 seconds as gentle pressure was applied to the needle. In 5 of the 41 TSPs, the needle crossed into the left atrium before RF energy was delivered. In 35 of the remaining 36 punctures, the needle was successfully advanced into the left atrium after application of RF current. In 1 patient, the TSP with the powered needle was unsuccessful but was accomplished using a standard needle. The only complication was a transient right atrial thrombus, which occurred in 2 patients. A radiofrequency powered transseptal needle can be used to perform TSP safely and successfully without the need for significant mechanical force, even in patients who have undergone TSP previously. Additional studies are needed to determine whether a powered transseptal needle should be used routinely.

  1. Tendon needling for treatment of tendinopathy: A systematic review.

    Science.gov (United States)

    Krey, David; Borchers, James; McCamey, Kendra

    2015-02-01

    To summarize the best available evidence to determine if tendon needling is an effective treatment for tendinopathy. Data source. Medline and Cochrane Databases through November 2013. Utilizing the search terms tendinopathy, needle, needling, tenotomy, dry needling, needling tendon, needle fenestration, and tendon fenestration, 17 articles were identified through our systematic literature search. Of these, 4 studies met the inclusion criteria. Four independent reviewers reviewed the articles. The study results and generated conclusions were agreed upon. The studies that were included in this review suggest that tendon needling improves patient reported outcomes in patients with tendinopathy. In 2 studies evaluating tendon needling in lateral epicondylosis, one showed an improvement in a subjective visual analogue scale score of 34% (significant change > 25%) from baseline at 6 months. The other showed an improvement of 56.1% in a visual analogue scale score from baseline. In 1 study evaluating tendon needling in addition to eccentric therapy for Achilles tendinosis, the subjective Victorian Institute of Sport Assessment-Achilles (VISA-A) score improved by 19.9 (significant change > 10) (95% CI, 13.6-26.2) from baseline. In 1 study evaluating tendon needling in rotator cuff tendinosis, the subjective shoulder pain and disability index showed statistical significant improvement from baseline at 6 months (P tendinopathy. There is a trend that shows that the addition of autologous blood products may further improve theses outcomes.

  2. Novel Double-Needle System That Can Prevent Intravascular Injection of Any Filler

    Directory of Open Access Journals (Sweden)

    Hsiang Huang, MD

    2017-09-01

    Full Text Available Summary:. A new type of needle system combines 2 parts, an inner needle and an outer needle. The inner needle is used for filler injection and the outer needle acts as a guiding needle that can observe blood reflow when inserting into the vessel lumen during injection process. This new needle system can be used for all kinds of filler, providing real time monitoring for physician and preventing intravascular injection of any filler.

  3. The effects of needle deformation during lumbar puncture

    Directory of Open Access Journals (Sweden)

    Hasan Hüseyin Özdemir

    2015-01-01

    Full Text Available Objective: The aim of this study is to assess deformation of the tip and deflection from the axis of 22-gauge Quincke needles when they are used for diagnostic lumbar puncture (LP. Thus, it can be determined whether constructional alterations of needles are important for predicting clinical problems after diagnostic LP. Materials and Methods: The 22-gauge Quincke needles used for diagnostic LP were evaluated. A specially designed protractor was used for measurement and evaluation. Waist circumference was measured in each patient. Patients were questioned about headaches occurring after LP. Results: A total of 115 Quincke-type spinal needles used in 113 patients were evaluated. No deflection was detected in 38 (33.1% of the needles. Deflection between 0.1° and 5° occurred in 43 (37.3% of the needles and deflection ≥ 5.1° occurred in 34 patients (29.6%. Forty-seven (41.5% patients experienced post lumbar puncture headache (PLPH and 13 (11.5% patients experienced intracranial hypotension (IH. No statistically significant correlation between the degree of deflection and headache was found (P > 0.05. Epidural blood patch was performed for three patients. Deformity in the form of bending like a hook occurred in seven needles and IH occurred in six patients using these needles. Two of the needles used in three patients requiring blood patch were found to be bent. Conclusion: Deformation of needles may increase complications after LP. Needle deformation may lead to IH. In case of deterioration in the structure of the needle, termination of the puncture procedure and the use of a new needle could reduce undesirable clinical consequences, especially IH.

  4. The effects of needle deformation during lumbar puncture

    Science.gov (United States)

    Özdemir, Hasan Hüseyin; Demir, Caner F.; Varol, Sefer; Arslan, Demet; Yıldız, Mustafa; Akil, Eşref

    2015-01-01

    Objective: The aim of this study is to assess deformation of the tip and deflection from the axis of 22-gauge Quincke needles when they are used for diagnostic lumbar puncture (LP). Thus, it can be determined whether constructional alterations of needles are important for predicting clinical problems after diagnostic LP. Materials and Methods: The 22-gauge Quincke needles used for diagnostic LP were evaluated. A specially designed protractor was used for measurement and evaluation. Waist circumference was measured in each patient. Patients were questioned about headaches occurring after LP. Results: A total of 115 Quincke-type spinal needles used in 113 patients were evaluated. No deflection was detected in 38 (33.1%) of the needles. Deflection between 0.1° and 5° occurred in 43 (37.3%) of the needles and deflection ≥ 5.1° occurred in 34 patients (29.6%). Forty-seven (41.5%) patients experienced post lumbar puncture headache (PLPH) and 13 (11.5%) patients experienced intracranial hypotension (IH). No statistically significant correlation between the degree of deflection and headache was found (P > 0.05). Epidural blood patch was performed for three patients. Deformity in the form of bending like a hook occurred in seven needles and IH occurred in six patients using these needles. Two of the needles used in three patients requiring blood patch were found to be bent. Conclusion: Deformation of needles may increase complications after LP. Needle deformation may lead to IH. In case of deterioration in the structure of the needle, termination of the puncture procedure and the use of a new needle could reduce undesirable clinical consequences, especially IH. PMID:25883480

  5. EFFICACY OF IMMUNOHISTOCHEMISTRY IN PROSTATE NEEDLE BIOPSIES

    Directory of Open Access Journals (Sweden)

    Tameem Afroz

    2016-10-01

    Full Text Available BACKGROUND Prostate needle biopsies can pose a major diagnostic challenge when it comes to differentiating adenocarcinoma and its variants from its benign mimics. In needle biopsies, when the suspicious focus is small, morphological features may not suffice to differentiate it from its morphologic mimics like atrophy, basal cell hyperplasia, reactive inflammatory changes, seminal vesicles and adenosis. Immunohistochemical marker for basal cells, p63 and prostate cancer specific marker, Alpha-Methylacyl-CoA Racemase (AMACR help in overcoming such diagnostic dilemmas. MATERIALS AND METHODS We analysed 157 prostate core needle biopsies over a period of 2 years. Routine Hematoxylin and Eosin (H and E sections and immunohistochemical markers for basal cells (p63 and prostate cancer specific marker (AMACR were used. Prospective study was done on prostate needle core biopsies. Biopsy was done under ultrasound guidance with an 18-gauge needle. Biopsy was done in patients with raised serum PSA levels for exclusion of prostate carcinoma. RESULTS Over a period of two years, 157 prostate core needle biopsies were studied. 83 were benign lesions comprising 69 benign prostatic hyperplasias, five basal cell hyperplasias, four granulomatous lesions and three showed atrophic changes. Two biopsies morphologically resembled seminal vesicles. Prostate cancer specific marker, AMACR was negative in all, but two lesions. In these two lesions, it showed weak nonspecific staining. Basal cell marker p63 showed a continuous staining pattern highlighting the basal cells in all the 69 cases of benign prostatic hyperplasia, 5 cases of basal hyperplasia showed positivity in all the hyperplastic basal cells. In the two cases of seminal vesicles, it showed intense basal cell positivity. It showed a discontinuous pattern in two of the four granulomatous lesions and showed a weak, but a continuous staining pattern in the atrophic lesions. 74 were adenocarcinomas; the predominant

  6. Fluoroscopically guided transforaminal epidural dry needling for lumbar spinal stenosis using a specially designed needle

    Directory of Open Access Journals (Sweden)

    Ahn Kang

    2010-08-01

    Full Text Available Abstract Background This report describes the methodological approach and clinical application of a minimally invasive intervention to treat lumbar spinal stenosis (LSS. Methods Thirty-four patients with LSS underwent fluoroscopically guided transforaminal epidural dry needling using a specially designed flexed Round Needle. The needle was inserted 8-12 cm lateral to the midline at the level of the stenosis and advanced to a position between the anterior side of the facet joint and pedicle up to the outer-third of the pedicle. The needle was advanced medially and backed laterally within a few millimetres along the canal side of the inferior articular process between the facet joint and pedicle. The procedure was completed when a marked reduction in resistance was felt at the tip of the needle. The procedure was performed bilaterally at the level of the stenosis. Results The average follow-up period was 12.9 ± 1.1 months. The visual analogue scale (VAS pain score was reduced from 7.3 ± 2.0 to 4.6 ± 2.5 points, the Oswestry Disability Index (ODI score decreased from 41.4 ± 17.2 to 25.5 ± 12.6% and the average self-rated improvement was 52.6 ± 33.1%. The VAS scores indicated that 14 (41.2% patients reported a "good" to "excellent" treatment response, while 11 (32.4% had a "good" to "excellent" treatment response on the ODI and 22 (64.7% had a "good" to "excellent" treatment response on the self-rated improvement scale. Conclusions These results suggest that fluoroscopically guided transforaminal epidural dry needling is effective for managing LSS.

  7. Game Changing Development Program - Next Generation Life Support Project: Oxygen Recovery From Carbon Dioxide Using Ion Exchange Membrane Electrolysis Technology

    Science.gov (United States)

    Burke, Kenneth A.; Jiao, Feng

    2016-01-01

    This report summarizes the Phase I research and development work performed during the March 13, 2015 to July 13, 2016 period. The proposal for this work was submitted in response to NASA Research Announcement NNH14ZOA001N, "Space Technology Research, Development, Demonstration, and Infusion 2014 (SpaceTech-REDDI-2014)," Appendix 14GCD-C2 "Game Changing Development Program, Advanced Oxygen Recovery for Spacecraft Life Support Systems Appendix" The Task Agreement for this Phase I work is Document Control Number: GCDP-02-TA-15015. The objective of the Phase I project was to demonstrate in laboratories two Engineering Development Units (EDU) that perform critical functions of the low temperature carbon dioxide electrolysis and the catalytic conversion of carbon monoxide into carbon and carbon dioxide. The low temperature carbon dioxide electrolysis EDU was built by the University of Delaware with Dr. Feng Jiao as the principal investigator in charge of this EDU development (under NASA Contract NNC15CA04C). The carbon monoxide catalytic conversion EDU was built by the NASA Glenn Research Center with Kenneth Burke as the principal investigator and overall project leader for the development of both EDUs. Both EDUs were successfully developed and demonstrated the critical functions for each process. The carbon dioxide electrolysis EDU was delivered to the NASA Johnson Space Center and the carbon monoxide catalytic conversion EDU was delivered to the NASA Marshall Spaceflight Center.

  8. HEAT EXCHANGER

    Science.gov (United States)

    Fox, T.H. III; Richey, T. Jr.; Winders, G.R.

    1962-10-23

    A heat exchanger is designed for use in the transfer of heat between a radioactive fiuid and a non-radioactive fiuid. The exchanger employs a removable section containing the non-hazardous fluid extending into the section designed to contain the radioactive fluid. The removable section is provided with a construction to cancel out thermal stresses. The stationary section is pressurized to prevent leakage of the radioactive fiuid and to maintain a safe, desirable level for this fiuid. (AEC)

  9. Heat exchanger

    International Nuclear Information System (INIS)

    Watabe, Ichiro.

    1996-01-01

    An inner cylinder is disposed coaxially in a vertical vessel, and a plurality of heat transfer pipes are wound spirally on the outer circumference of the inner cylinder. High temperature sodium descends on the outer side of the inner cylinder while exchanging heat with water in the heat transfer pipes and becomes low temperature sodium. The low temperature sodium turns at the lower portion of the vessel, rises in a sodium exit pipe inserted to the inner cylinder and is discharged from the top of the vessel to the outside of the vessel. A portion of a cover gas (an inert gas such as argon) filled to the upper portion of the vessel intrudes into the space between the outer circumference of the sodium exit pipe and the inner circumference of the inner cylinder to form a heat insulation layer of the inert gas. This prevents heat exchange between the high temperature sodium before heat exchange and low temperature sodium after heat exchange. The heat exchanger is used as a secondary heat exchanger for coolants (sodium) of an FBR type reactor. (I.N.)

  10. THE EFFECTIVENESS OF DRY NEEDLING AND STRETCHING VS. STRETCHING ALONE ON HAMSTRING FLEXIBILITY IN PATIENTS WITH KNEE PAIN: A RANDOMIZED CONTROLLED TRIAL.

    Science.gov (United States)

    Mason, John S; Crowell, Michael; Dolbeer, Jeffery; Morris, Jamie; Terry, Aspen; Koppenhaver, Shane; Goss, Donald Lee

    2016-10-01

    Recently, dry needling has emerged as a popular treatment for muscular pain and impairments. While there are numerous studies detailing the benefits of dry needling for pain, few studies exist examining the effects on soft tissue mobility. The purpose of this study was to determine if the addition of hamstring dry needling to a standard stretching program results in greater improvements in hamstring flexibility compared to sham dry needling and stretching in subjects with atraumatic knee pain. Additionally, squat range of motion, knee pain, and the Lower Extremity Functional Scale were compared between the two groups. Double blinded randomized controlled trial. Thirty-nine subjects were randomized to receive either dry needling (n = 20) or sham (n = 19) dry needling in addition to hamstring stretching, to all detected hamstring trigger points on two visits. All dependent variables were measured at baseline, immediately post intervention, and 1, 3, and 7 days after the initial treatment. Each subject also performed hamstring stretching three times daily for one week. Significant improvements in hamstring range of motion and all other dependent variables were observed across time regardless of treatment group. However, the lack of significant time by group interactions indicated the improvements were not different between dry needling and sham dry needling groups. The results of the current randomized controlled trial suggest that two sessions of dry needling did not improve hamstring range of motion or other knee pain-related impairments more than sham dry needling in a young active population with atraumatic knee pain. Therapy, Level 2.

  11. NASA/University JOint VEnture (JOVE) Program. VIXEN(tm): Object-Oriented, Technology-Adaptive, Virtual Information Exchange Environment

    Science.gov (United States)

    Anyiwo, Joshua C.

    2000-01-01

    Vixen is a collection of enabling technologies for uninhibited distributed object computing. In the Spring of 1995 when Vixen was proposed, it was an innovative idea very much ahead of its time. But today the technologies proposed in Vixen have become standard technologies for Enterprise Computing. Sun Microsystems J2EE/EJB specifications, among others, are independently proposed technologies of the Vixen type. I have brought Vixen completely under the J2EE standard in order to maximize interoperability and compatibility with other computing industry efforts. Vixen and the Enterprise JavaBean (EJB) Server technologies are now practically identical; OIL, another Vixen technology, and the Java Messaging System (JMS) are practically identical; and so on. There is no longer anything novel or patentable in the Vixen work performed under this grant. The above discussion, notwithstanding, my independent development of Vixen has significantly helped me, my university, my students and the local community. The undergraduate students who worked with me in developing Vixen have enhanced their expertise in what has become the cutting edge technology of their industry and are therefore well positioned for lucrative employment opportunities in the industry. My academic department has gained a new course: "Multi-media System Development", which provides a highly desirable expertise to our students for employment in any enterprise today. The many Outreach Programs that I conducted during this grant period have exposed local Middle School students to the contributions that NASA is making in our society as well as awakened desires in many such students for careers in Science and Technology. I have applied Vixen to the development of two software packages: (a) JAS: Joshua Application Server - which allows a user to configure an EJB Server to serve a J2EE compliant application over the world wide web; (b) PCM: Professor Course Manager: a J2EE compliant application for configuring a

  12. Evaluating the advances and use of hypodermic needles in dentistry.

    Science.gov (United States)

    Boynes, Sean G

    2014-10-01

    Different injection techniques and patient management methodologies have been proposed to decrease the fear patients may have concerning dental needles. Dental providers should have an understanding of the technological advances, changes in techniques, and patient perceptions associated with the hypodermic needle. This article provides an overview of the pain perception process associated with dental injections. It reviews the two main sensory nerve fibers associated with injection pain and discusses needle properties as well as complications and adverse occurrences.

  13. Fine Needle Aspiration Biopsy in a Rural Family Practice

    African Journals Online (AJOL)

    ultrasound scan. A 21-gauge 1½-inch or 23-gauge 1¼-inch needle, attached to a 10-mL disposable plastic syringe, was used for FNAB of superficial masses. For percutaneous FNAB of deep-seated organs and masses, a 23 gauge 1¼-inch needle or 3½-inch spinal needle was used. The aspirate was spread on slides and ...

  14. Current status of core needle biopsy of the thyroid

    Energy Technology Data Exchange (ETDEWEB)

    Baek, Jung Hwan [Dept. of Radiology and Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul (Korea, Republic of)

    2017-04-15

    Thyroid nodules are a common clinical problem. Fine-needle aspiration (FNA) and large-needle biopsy have been used to diagnose thyroid nodules. Before the 1980s, large-needle biopsy was the standard procedure for the thyroid, but FNA became the standard diagnostic tool in the 1980s because it is a safe procedure that leads to accurate diagnoses. With advances in core needle biopsy (CNB) devices (i.e., spring-activated core needles) and development of high-resolution ultrasound, it has become possible to make accurate diagnoses while minimizing complications. Although 18- to 21-gauge core needles can be used to biopsy thyroid nodules, 18-gauge needles are most commonly used in Korea. The relationships among the size of the needle, the number of core specimens, and diagnostic accuracy have not yet been conclusively established, but the general tendency is that thinner needles cause less damage to the normal thyroid, but allow a smaller amount of thyroid tissue to be biopsied to be obtained. These relationships may be validated in the future.

  15. [Percutaneous needle aponeurotomy for Dupuytren's disease].

    Science.gov (United States)

    Spies, C K; Müller, L P; Skouras, E; Bassemir, D; Hahn, P; Unglaub, F

    2016-02-01

    Percutaneous transverse aponeurotomy of the cord by using a hypodermic needle as a scalpel blade in order to improve function of the hand. Symptomatic flexion contracture with positive table top test caused by a single, palpable cord within the palm (primarily Tubiana stages I and II). Multiple, infiltrating or broad-based cords within the palm; irritated skin conditions; exclusive digital cord localization; recurrence after aponeurectomy; previous surgical intervention at the site of interest, digital nerve lesions; lack of patient compliance. Pinpoint surface anesthesia is obtained by injecting each portal area subdermally with 0.1 ml of local anesthetic. These applications start from distally to proximally within the palm while the most distal injection site is located proximal to the distal palm crease. Then the needle tip is introduced perpendicular to the cord. Sawing movements through the cord are performed transversely. While passively extending the contracted finger, the cord is held under tension which guarantees safe cutting. Patients are encouraged to report immediate pain sensation or numbness in order to prevent injuries to neurovascular structures and active finger flexion excludes tendon lesions during the procedure. Introducing the needle tip may be performed at several sites along the cord, if necessary, from distal to proximal at least 5 mm apart with prior pinpoint surface anesthesia. Finally, cautious passive stretching may be done after each release. Bandaging allowing immediate motion; application of a hand-based extension splint-glove during the night for 3-6 months. Recurrence rate was 53% in 15 retrospectively examined patients after a mean interval of 40 months postoperatively.

  16. Foreign Body in the Liver: Sewing Needle

    Directory of Open Access Journals (Sweden)

    Yeliz Akturk

    2013-10-01

    Full Text Available Foreign body ingestion is a frequent clinical problem. Many foreign bodies go through the alimentary system without causing any damage. Incisory and penetrative foreign bodies may migrate and stay in the neighboring organs after perforation. Nevertheless this is an unusual case. The foreign bodies may be found outside of the gastrointestinal system and computed tomography is helpfull for localization and to identify their relationship between surrounding tissues. Here we report of a case in which a swallowed needle perforates duodenum and penetrates the liver.

  17. Hydrogen exchange

    DEFF Research Database (Denmark)

    Jensen, Pernille Foged; Rand, Kasper Dyrberg

    2016-01-01

    Hydrogen exchange (HX) monitored by mass spectrometry (MS) is a powerful analytical method for investigation of protein conformation and dynamics. HX-MS monitors isotopic exchange of hydrogen in protein backbone amides and thus serves as a sensitive method for probing protein conformation...... and dynamics along the entire protein backbone. This chapter describes the exchange of backbone amide hydrogen which is highly quenchable as it is strongly dependent on the pH and temperature. The HX rates of backbone amide hydrogen are sensitive and very useful probes of protein conformation......, as they are distributed along the polypeptide backbone and form the fundamental hydrogen-bonding networks of basic secondary structure. The effect of pressure on HX in unstructured polypeptides (poly-dl-lysine and oxidatively unfolded ribonuclease A) and native folded proteins (lysozyme and ribonuclease A) was evaluated...

  18. Syringe exchange programs in Brazil: preliminary assessment of 45 programs Programas de redução de danos causados pelo uso de drogas no Brasil: caracterização preliminar de 45 programas

    Directory of Open Access Journals (Sweden)

    Elize Massard da Fonseca

    2006-04-01

    Full Text Available The present study aims to evaluate the current operation of Brazilian syringe exchange programs (SEP. After consulting national and regional networks of people working in projects/ programs aiming to reduce drug-related harm, we identified 134 potential participant programs. Unfortunately, only 45 SEPs answered a survey, even after repeated attempts. The survey addressed: coverage, funding, procurement of basic supplies, managerial capacity, and the local political environment. Findings were triangulated with in-depth interviews with key informants. The main findings included: satisfactory adherence to the initiatives and adequate documentation, but deficiencies in terms of coverage and monitoring, and uneven procurement of resources. Program personnel work mostly on a provisional basis, despite the efforts of local coordinators. Most programs are funded by the National STDs/AIDS Program. A comprehensive agenda aiming to improve current operations should include: concerted efforts to improve local and regional databanks, incentives/sanctions toward full accountability of initiatives carried by the programs, and a genuine culture of monitoring and evaluation.O presente estudo buscou avaliar a operação cotidiana dos programas de troca de seringas brasileiros (conhecidos, no país, como PRD. Foram identificados 134 PRD, com base na compilação de informações das redes que atuam na área. Por intermédio de uma pesquisa, avaliou-se a cobertura dos programas, o seu financiamento, o controle de insumos, a sua capacidade organizacional e o contexto político local. Os achados, referentes a 45 programas (que, de fato, responderam à pesquisa, após repetidos contatos, foram triangulados com entrevistas com informantes-chave. Foi identificada adesão satisfatória às ações e adequada documentação e registro, mas deficiências de cobertura e monitoramento, além de descontinuidades quanto aos insumos. Os profissionais que atuam nos programas t

  19. Relationship between buckling of acupuncture needles and the handle type.

    Science.gov (United States)

    Zhang, Claire Shuiqing; Pannirselvan, Muthu; Xue, Charlie Changli; Xie, Yi Min

    2014-10-01

    Most popular single-use acupuncture needles consist of a stainless steel shaft with a handle made of copper coil or plastic stick. To determine the strengths and weaknesses of these two handle types for needle buckling. The buckling load for acupuncture needles with these two different handle types was determined using a digital scale, and the stiffness of stainless steel wires used in different types of acupuncture needles was measured using a Dynamic Mechanical Analysis machine. This study showed that an acupuncture needle with a copper coil handle was far more susceptible to buckling than a needle with a plastic stick handle. The average buckling force of acupuncture needles with plastic stick handles was 46.7% higher than that with copper coil handles for needles of 0.25 mm×30 mm, and 30.8% higher for needles of 0.25 mm×60 mm. Replacing a copper coil handle with a plastic stick handle could save about 100 tonnes of copper wires and 20 million metres of medical grade stainless steel wire a year worldwide. The results from this study suggest that the common practice of using coiled copper for handles on acupuncture needles should be re-evaluated. Replacing a copper coil handle with a plastic stick handle would significantly reduce needle buckling and improve patient comfort and safety. This would also reduce the consumption of copper and medical grade stainless steel wire considerably. Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://group.bmj.com/group/rights-licensing/permissions.

  20. Artifact-reduced imaging of biopsy needles with 2D multispectral imaging.

    Science.gov (United States)

    Weber, Hans; Hargreaves, Brian A; Daniel, Bruce L

    2017-12-29

    Magnetic resonance (MR) guidance for biopsy procedures requires high intrinsic soft-tissue contrast. However, artifacts induced by the metallic needle can reduce its localization and require low-susceptibility needle materials with poorer cutting performance. In a proof of concept, we demonstrate the feasibility of 2D multispectral imaging (2DMSI) for both needle tracking and for needle artifact reduction for more precise needle localization and to enable the usage of needle materials with higher susceptibility. We applied 2DMSI for imaging of MR-compatible biopsy needles, conventional stainless-steel needles, and mixed-material needles and compared it to conventional techniques. In addition, we exploited intrinsic off-resonance information for passive needle tracking. 2DMSI achieved a stronger reduction of the needle artifact compared to conventional techniques. For the mixed-material needles, the artifact was reduced to a level below that for MR-compatible needles with conventional imaging. The passive tracking also improved the ability to pinpoint the needle. 2DMSI is promising for both needle tracking and artifact-reduced imaging of biopsy needles for a more precise needle localization. 2DMSI may be particularly promising for needles inducing large distortions or for targeting of small lesions. In addition, it may enable the use of needle materials with higher susceptibility and potentially better sampling performance. Magn Reson Med, 2017. © 2017 International Society for Magnetic Resonance in Medicine. © 2017 International Society for Magnetic Resonance in Medicine.

  1. Effect of needle brand, needle bevel grind, and silicone lubrication on contamination of joints with tissue and hair debris after arthrocentesis.

    Science.gov (United States)

    Waxman, Sarah J; Adams, Stephen B; Moore, George E

    2015-04-01

    To assess contamination of joints with tissue and hair debris after arthrocentesis. Experimental. Fetlock joint tissues (n = 6 horses). Soft tissue flaps including joint capsule were dissected from the dorsal aspect of fetlock joints of 6 anesthetized horses leaving an intact proximal base ("live" model) or with complete excision and immediate mounting to a wooden frame ("fresh" model). Needles were inserted through joint tissues and saline solution was flushed through them into tissue culture plate wells, and then examined for tissue and hair debris. Nine needle types were assessed; variables included needle brand, needle bevel grind, needle size, and silicone lubrication. No significant difference was detected between "live" and "fresh" models for hair or tissue contamination. Compared to 20 g hypodermic needles, 19 g lubricated and 19 g non-lubricated needles had a significantly greater odds ratio (OR) for hair contamination. Nineteen-gauge non-lubricated needles had a significantly greater OR for hair contamination than 19 g lubricated needles. No significant differences in ORs were identified between type of needle bevel grind, brands of disposable hypodermic needles, or brands of spinal needles for hair or tissue contamination. Nineteen-gauge needles significantly increase the risk of joint contamination with hair compared to 20 g needles; non-lubricated 19 g needles have the greatest risk. All other needle types tested in this study have similar risks for tissue and hair contamination after arthrocentesis. © Copyright 2014 by The American College of Veterinary Surgeons.

  2. Preschool Needle Pain Responding: Establishing 'Normal'.

    Science.gov (United States)

    Waxman, Jordana A; DiLorenzo, Miranda G; Pillai Riddell, Rebecca R; Flora, David B; Greenberg, Saul; Garfield, Hartley

    2017-06-01

    The current study sets forth to provide descriptive data for preschool vaccination pain responding as well as examine longitudinal relationships over early childhood. Growth mixture modeling was first used to describe stable subgroups of preschoolers on the basis of their pain response patterns over 2-minutes post-needle. Secondly, a parallel-process growth curve model was used to assess the stability of acute pain responding from 12 months of age to preschool age. Specifically, we examined whether preschool pain-related distress or regulation could be predicted from 12-month acute pain responding. Preschool participants were part of a Canadian longitudinal cohort (The Opportunities to Understand Childhood Hurt [OUCH] cohort; N = 302). Growth mixture modeling analyses discerned 3 distinct groups of preschoolers, with an important minority not regulating to low-no pain by 2 minutes post-needle. There were no significant associations between 12-month and preschool pain responding. These results highlight the steep trajectory of development between these different stages of early childhood and the variability of pain responding at the preschool vaccination. This study provides descriptive data for preschool vaccination pain responding as well as examines longitudinal relationships over early childhood. Demonstrating significantly different pain patterns from infancy, 25% of preschoolers are displaying suboptimal regulation trajectories. This considerable minority poses a significant concern because of the established trajectory of phobia onset in middle childhood. Copyright © 2017 American Pain Society. Published by Elsevier Inc. All rights reserved.

  3. Heat exchanger restart evaluation

    International Nuclear Information System (INIS)

    Morrison, J.M.; Hirst, C.W.; Lentz, T.F.

    1992-01-01

    On December 24, 1991, the K-Reactor was in the shutdown mode with full AC process water flow and full cooling water flow. Safety rod testing was being performed as part of the power ascension testing program. The results of cooling water samples indicated tritium concentrations higher than allowable. Further sampling and testing confirmed a Process Water System to Cooling Water System leak in heat exchanger 4A (HX 4A). The heat exchanger was isolated and the plant shutdown. Heat exchanger 4A was removed from the plant and moved to C-Area prior to performing examinations and diagnostic testing. This included locating and identifying the leaking tube or tubes, eddy current examination of the leaking tube and a number of adjacent tubes, visually inspecting the leaking tube from both the inside as well as the area surrounding the identified tube. The leaking tube was removed and examined metallurgically to determine the failure mechanism. In addition ten other tubes that either exhibited eddy current indications or would represent a baseline condition were removed from heat exchanger 4A for metallurgical examination. Additional analysis and review of heat exchanger leakage history was performed to determine if there are any patterns which can be used for predictive purposes. Compensatory actions have been taken to improve the sensitivity and response time to any future events of this type. The results of these actions are summarized

  4. Heat exchanger restart evaluation

    International Nuclear Information System (INIS)

    Morrison, J.M.; Hirst, C.W.; Lentz, T.F.

    1992-01-01

    On December 24, 1991, the K-Reactor was in the shutdown mode with full AC process water flow and full cooling water flow. Safety rod testing was being performed as part of the power ascension testing program. The results of cooling water samples indicated tritium concentrations higher than allowable. Further sampling and testing confirmed a Process Water System to Cooling Water System leak in heat exchanger 4A (HX 4A). The heat exchanger was isolated and the plant shutdown. Heat exchanger 4A was removed from the plant and moved to C-Area prior to performing examinations and diagnostic testing. This included locating and identifying the leaking tube or tubes, eddy current examination of the leaking tube and a number of adjacent tubes, visually inspecting the leaking tube from both the inside as well as the area surrounding the identified tube. The leaking tube was removed and examined metallurgically to determine the failure mechanism. In addition ten other tubes that either exhibited eddy current indications or would represent a baseline condition were removed from heat exchanger 4A for metallurgical examination. Additional analysis and review of heat exchanger leakage history was performed to determine if there are any patterns which can be used for predictive purposes. Compensatory actions have been taken to improve the sensitivity and response time to any future events of this type. The results of these actions are summary herein

  5. Heat exchanger restart evaluation

    International Nuclear Information System (INIS)

    Morrison, J.M.; Hirst, C.W.; Lentz, T.F.

    1992-01-01

    On December 24, 1991, the K-Reactor was in the shutdown mode with full AC process water flow and full cooling water flow. Safety rod testing was being performed as part of the power ascension testing program. The results of cooling water samples indicated tritium concentrations higher than allowable. Further sampling and testing confirmed a Process Water System to Cooling Water System leak in heat exchanger 4A (HX 4A). The heat exchanger was isolated and the plant shutdown. Heat exchanger 4kA was removed from the plant and moved to C-Area prior to performing examinations and diagnostic testing. This included locating and identifying the leaking tube or tubes, eddy current examination of the leaking tube and a number of adjacent tubes, visually inspecting the leaking tube from both the inside as well as the area surrounding the failure mechanism. In addition ten other tubes that either exhibited eddy current indications or would represent a baseline condition were removed from heat exchanger 4A for metallurgical examination. Additional analysis and review of heat exchanger leakage history was performed to determine if there are any patterns which can be used for predictive purposes. Compensatory actions have been taken to improve the sensitivity and response time to any future events of this type. The results of these actions are summarized herein

  6. Skin Blood Perfusion and Cellular Response to Insertion of Insulin Pen Needles With Different Diameters

    DEFF Research Database (Denmark)

    Præstmark, Kezia Ann; Stallknecht, Bente Merete; Bo Jensen, Casper

    2014-01-01

    skin blood perfusion response around needle insertion sites. Three common sized pen needles of 28G, 30G, and 32G as well as hooked 32G needles, were inserted into the neck skin of pigs and then removed. Laser Speckle Contrast Analysis was used to measure skin blood perfusion for 20 minutes after...... blood perfusion recording and grouped according to needle type, skin blood perfusion response relates to needle diameter. The response was significantly higher after insertions with 28G and hooked 32G needles than with 30G (P ..., but there was a trend of an increased response with increasing needle diameter. Skin blood perfusion response to pen needle insertions rank according to needle diameter, and the tissue response caused by hooked 32G needles corresponds to that of 28G needles. The relation between needle diameter and trauma when...

  7. Heat exchangers

    International Nuclear Information System (INIS)

    1975-01-01

    The tubes of a heat exchanger tube bank have a portion thereof formed in the shape of a helix, of effective radius equal to the tube radius and the space between two adjacent tubes, to tangentially contact the straight sections of the tubes immediately adjacent thereto and thereby provide support, maintain the spacing and account for differential thermal expansion thereof

  8. Heat exchanger

    International Nuclear Information System (INIS)

    Wolowodiuk, W.

    1976-01-01

    A heat exchanger of the straight tube type is described in which different rates of thermal expansion between the straight tubes and the supply pipes furnishing fluid to those tubes do not result in tube failures. The supply pipes each contain a section which is of helical configuration

  9. Exchange Options

    NARCIS (Netherlands)

    Jamshidian, F.

    2007-01-01

    The contract is described and market examples given. Essential theoretical developments are introduced and cited chronologically. The principles and techniques of hedging and unique pricing are illustrated for the two simplest nontrivial examples: the classical Black-Scholes/Merton/Margrabe exchange

  10. Needle Tip Visibility in 3D Ultrasound Images

    NARCIS (Netherlands)

    M. Arif (Muhammad); A. Moelker (Adriaan); T.W. van Walsum (Theo)

    2017-01-01

    textabstractAim: Needle visibility is crucial for effective and safe ultrasound-guided interventional procedures. Several studies have investigated needle visibility in 2D ultrasound imaging, but less information is available for 3D ultrasound imaging, a modality that has great potential for image

  11. Local variations in microfungal populations on Pinus sylvestris needles.

    Science.gov (United States)

    Gourbière, François; Debouzie, Domitien

    2003-10-01

    We studied the fungal colonization of Pinus sylvestris needles in two neighbouring sites, comparing stands of isolated and grouped trees. We observed large variations among the proportions of needles bearing fruit bodies of Cyclaneusma minus, Lophodermium pinastri, Verticicladium trifidum and black lines characteristic of L. pinastri colonization. Variations between sites and within trees were greater than that between stands or between trees. The frequency of L. pinastri colonization was negatively correlated with C. minus fruit body frequency, while the frequency of V. trifidum conidiophores was positively correlated with L. pinastri colonization frequency without fruiting, and negatively correlated with C. minus apothecia frequency. Although L. pinastri black lines and C. minus apothecia were nearly randomly associated on individual needles in each sample, the two fungi occupied different segments when they occupied the same needle. These patterns at needle and sample scales do not explain the negative correlation between the frequencies of these two species observed at larger scales. In each sample, frequency of V. trifidum conidiophores was highest on needles colonized by L. pinastri without fruiting. On individual needles, V. trifidum conidiophores developed on segments colonized by L. pinastri without fruiting, but not on segments bearing fruit bodies of L. pinastri or C. minus. These patterns at needle and sample scales were consistent with the correlations between frequencies observed at larger scales. These results were compared to variations observed with stand age and climate in others studies. The observed variations might result from both microclimate variations and fungal interactions.

  12. Effect of dietary mugwort ( Artemisia vulgaris L.) and pine needle ...

    African Journals Online (AJOL)

    The effects of dietary mugwort and pine needle powder supplementation on growth performance, serum cholesterol, and meat quality of broilers were evaluated in a 35 days feed trial. 200 one day old broilers were randomly allocated to five dietary treatments (0, 1 and 2% mugwort or 1 and 2% pine needle powder) with ...

  13. Effect of vibration frequency on biopsy needle insertion force.

    Science.gov (United States)

    Tan, Lei; Qin, Xuemei; Zhang, Qinhe; Zhang, Hongcai; Dong, Hongjian; Guo, Tuodang; Liu, Guowei

    2017-05-01

    Needle insertion is critical in many clinical medicine procedures, such as biopsy, brachytherapy, and injection therapy. A platform with two degrees of freedom was set up to study the effect of vibration frequency on needle insertion force. The gel phantom deformation at the needle cutting edge and the Voigt model are utilized to develop a dynamic model to explain the relationship between the insertion force and needle-tip velocity. The accuracy of this model was verified by performing needle insertions into phantom gel. The effect of vibration on insertion force can be explained as the vibration increasing the needle-tip velocity and subsequently increasing the insertion force. In a series of needle insertion experiments with different vibration frequencies, the peak forces were selected for comparison to explore the effect of vibration frequency on needle insertion force. The experimental results indicate that the insertion force at 500Hz increases up to 17.9% compared with the force at 50Hz. Copyright © 2017 IPEM. Published by Elsevier Ltd. All rights reserved.

  14. Spinal anaesthesia in young patients: evaluation of needle gauge ...

    African Journals Online (AJOL)

    Background:The well-known complication of spinal anaesthesia, postdural puncture headache (PDPH), is especially troublesome in young patients. The needle gauge and configuration of needle tip appear to be the important factors in reducing the incidence of PDPH; however it may increase the incidence of technical ...

  15. Needle-shaped and platelet growth of borax crystals

    International Nuclear Information System (INIS)

    Takoo, R.K.; Patel, B.R.; Joshi, M.S.

    1983-01-01

    Needle-shaped and platelet growth of borax crystals from solutions is reported. Results of microtopographical studies on both the varieties are discussed. It is suggested that a slow rate of evaporation favours needle growth and a faster rate is conducive to the growth of platelets. (author)

  16. Fine Needle Aspiration Cytology In Tumour Diagnosis | Obaseki ...

    African Journals Online (AJOL)

    Fine needle aspiration cytology (FNAC), a technique for obtaining cellular material for cytological examination and diagnosis using a 21- gauge or smaller needle, is performed using a 5, 10, or 20ml syringe either freehand or using special syringe holders. It allows a minimally invasive, rapid diagnosis of tissue samples but

  17. Diagnosis Of Thyroid Enlargement: Use Of Fine Needle Aspiration ...

    African Journals Online (AJOL)

    One hundred and ten Fine Needle Aspiration Biopsies (FNAC) obtained from 87 patients with thyroid enlargement or nodules were retrospectively reviewed. Aspiration biopsy was accomplished using 21-gauge needle attached with 20-ml plastic syringe. There were 14 males and 73 females involved in the study. Sixty- four ...

  18. Prevalence of needle-stick injuries, blood and body fluids ...

    African Journals Online (AJOL)

    Background: Health care workers are frequently exposed to needle-stick injuries, blood and body fluids in the performance of their duties. Aims and objectives: This study sought to determine the prevalence and pattern of occupational exposure to needle-stick injuries, blood and body fluid contamination among clinical and ...

  19. Prevalence of Needle Stick Injuries among Healthcare Workers in ...

    African Journals Online (AJOL)

    Background: Needle stick injuries represent one of the most important occupational hazards to which health workers are exposed. These injuries result from accidental piercing of the skin and or mucous membranes by sharp objects. Needle stick injuries carry the risk of exposure to blood-borne pathogens, especially ...

  20. Discordance Rate between Thyroid Fine Needle Aspiration Cytology ...

    African Journals Online (AJOL)

    Discordance Rate between Thyroid Fine Needle Aspiration Cytology and Histopathologic Diagnosis. Wondwossen Ergete, Daniel Abebe. Abstract. Fine Needle Aspiration (FNA) of the thyroid is a low cost procedure, which can give an accurate diagnosis promptly. The objective of this study was to assess the diagnostic ...

  1. PVA matches human liver in needle-tissue interaction

    NARCIS (Netherlands)

    de Jong, T.L.; Pluymen, L.H.; van Gerwen, D.J.; Kleinrensink, GJ; Dankelman, J.; van den Dobbelsteen, J.J.

    2017-01-01

    Medical phantoms can be used to study needle-tissue interaction and to train medical residents. The purpose of this research is to study the suitability of polyvinyl alcohol (PVA) as a liver tissue mimicking material in terms of needle-tissue interaction. Insertions into ex-vivo human livers were

  2. ORIGINAL ARTICLES Door-to-needle time for administration of ...

    African Journals Online (AJOL)

    infarction (STEMI) were identified; 161 patients were eligible for the study. The median door-to-needle time achieved was 54 minutes (range 13 - 553 mins). A door-to-needle time of 30 minutes or less was achieved in 33 (20.5%) patients; 51.3% of the patients arrived by ambulance; 34% of patients had a pre-hospital 12- ...

  3. Darning Needle Impacted in the Male Urethra | Singla | African ...

    African Journals Online (AJOL)

    Foreign bodies of varied nature have been introduced into the urethra to achieve sexual stimulation. We report the case of a long (9.5 cm) darning needle impacted in the urethra of a male patient following urethral masturbation. After a failed trial at endoscopic extraction the needle had to be removed via open surgery.

  4. Importance of Fine Needle Aspiration in Evaluation of Single ...

    African Journals Online (AJOL)

    Background: Improvements in the sensitivity and specificity of biochemical thyroid tests, as well as the development of fine needle aspiration biopsy (FNA) and improved cytological techniques, have dramatically impacted clinical strategies for detecting and treating thyroid disorders. Fine needle aspiration is a safe and ...

  5. CT-guided needle puncture for diagnosis and treatment

    Energy Technology Data Exchange (ETDEWEB)

    Itoh, Takashi; Kaji, Tatsumi; Ashida, Hiroshi; Nakajima, Yasuo; Nosaka, Shunsuke; Kuroki, Kazunori; Kurihara, Yasuyuki; Hara, Akihiko; Ishikawa, Tohru

    1987-12-01

    CT-guided needle puncture was performed in 16 aspiration biopsies, 12 nerve neurolysis, 6 percutaneous treatment such as abscess drainage. CT-guidance was better than fluoroscopic or sonographic control, in dealing with small, deeply-located lesions where precise location of needle is inevitable. We used the slotted 20 gauge thin-walled needle for biopsy, 21 or 22-gauge chiba-needle for other purposes. Over-all accuracy was 93.3 % in aspiration biopsies and technical successful rate in nerve neurolysis was 100 %. Only one pneumothorax was noted as a complication. CT-guided needle puncture was safe and exact, especially when fluoroscopic or sonographic guidance was not possible.

  6. A training system for ultrasound-guided needle insertion procedures.

    Science.gov (United States)

    Zhu, Yanong; Magee, Derek; Ratnalingam, Rish; Kessel, David

    2007-01-01

    Needle placement into a patient body under guidance of ultrasound is a frequently performed procedure in clinical practice. Safe and successful performance of such procedure requires a high level of spatial reasoning and hand-eye co-ordination skills, which must be developed through intensive practice. In this paper we present a training system designed to improve the skills of interventional radiology trainees in ultrasound-guided needle placement procedures. Key issues involved in the system include surface and volumetric registration, solid texture modelling, spatial calibration, and real-time synthesis and rendering of ultrasound images. Moreover, soft tissue deformation caused by the needle movement and needle cutting is realised using a mass-spring-model approach. These have led to a realistic ultrasound simulation system, which has been shown to be a useful tool for the training of needle insertion procedures. Preliminary results of a construct evaluation study indicate the effectiveness and usefulness of the developed training system.

  7. Master-slave robotic system for needle indentation and insertion.

    Science.gov (United States)

    Shin, Jaehyun; Zhong, Yongmin; Gu, Chengfan

    2017-12-01

    Bilateral control of a master-slave robotic system is a challenging issue in robotic-assisted minimally invasive surgery. It requires the knowledge on contact interaction between a surgical (slave) robot and soft tissues. This paper presents a master-slave robotic system for needle indentation and insertion. This master-slave robotic system is able to characterize the contact interaction between the robotic needle and soft tissues. A bilateral controller is implemented using a linear motor for robotic needle indentation and insertion. A new nonlinear state observer is developed to online monitor the contact interaction with soft tissues. Experimental results demonstrate the efficacy of the proposed master-slave robotic system for robotic needle indentation and needle insertion.

  8. Spread of fluid: Role of tip configurations in needles

    DEFF Research Database (Denmark)

    Gomes, Silvana; Drakidis, Alexandros Dimitrios; Silva, Patricia

    2017-01-01

    data were obtained after injecting 0.3 mL of fluid into a foamed polymer model with a velocity of 2 mm/s. The spread area and the depth were determined for 3 different types of hypodermic needles: Single channel needles with bevel tip and blunt tip and a needle with conical tip and 3 internal channels......During the injection of a fluid in a tissue model, the fluid might be affected by the needle tip configuration and the number of channels. Thus, the objective of the present work is to observe the influence of different needle tips and number of channels on the spread of a fluid. Fluid distribution...

  9. Awareness of pre-exposure prophylaxis (PrEP) among women who inject drugs in NYC: the importance of networks and syringe exchange programs for HIV prevention.

    Science.gov (United States)

    Walters, Suzan M; Reilly, Kathleen H; Neaigus, Alan; Braunstein, Sarah

    2017-06-29

    Women who inject drugs (WWID) are at heightened risk for HIV due to biological, behavioral, and structural factors. Pre-exposure prophylaxis (PrEP) could aid in HIV prevention for WWID. However, little is known about WWID awareness of PrEP, which is a necessary step that must occur before PrEP uptake. We report factors associated with greater awareness among WWID to identify efficient means of awareness dissemination. Data from the 2015 National HIV Behavioral Surveillance (NHBS) system cycle on injection drug use collected in New York City (NYC) were used. Bivariable analyses, using chi-squared statistics, were conducted to examine correlates of awareness of PrEP with socio-demographic, behavioral, and health care variables. Multivariable logistic regression was used to estimate adjusted associations and determine differences in awareness of PrEP. The analysis consisted of 118 WWID. Awareness of PrEP was relatively low (31%), and risk factors were high. In the last 12 months, almost two thirds (65%) reported condomless sex, approximately one third (31%) reported transactional sex, and one third (32%) reported sharing injection equipment. In multivariable logistic regression, increased PrEP awareness was associated with reported transactional sex (AOR 3.32, 95% CI 1.22-9.00) and having a conversation about HIV prevention at a syringe exchange program (SEP) (AOR 7.61, 95% CI 2.65-21.84). We did not find race, education, household income, age, binge drinking, or sexual identity to be significantly associated with PrEP awareness. Large proportions of WWID were unaware of PrEP. These findings suggest that social networks (specifically sex work and SEP networks) are an efficient means for disseminating messaging about prevention materials such as PrEP. We recommend that SEP access increase, SEP processes be adopted in other health care settings, and WWID networks be utilized to increase PrEP awareness.

  10. Commentary on Vorobjov et al., "Comparison of injection drug users who obtain syringes from pharmacies and syringe exchange programs in Tallinn, Estonia"

    Directory of Open Access Journals (Sweden)

    Werb Daniel

    2009-01-01

    Full Text Available Abstract Recent data suggest that globally, between 5% and 10% of all new HIV cases are the result of unsafe injecting practices, and experts agree that reducing these practices is key to tackling the spread of HIV. And yet, despite the overwhelming evidence that providing sterile syringes to injection drug users (IDU through syringe exchange programs (SEPs or other means is an effective way of reducing HIV transmission among high-risk subpopulations, IDU in most settings still do not have access to sterile injecting equipment or if they do, access remains too restricted to effectively reduce the risk of HIV transmission. Vorobjov and colleagues have presented in this journal an interesting and timely study from Estonia comparing individuals who obtain syringes from SEPs and those who obtain syringes from pharmacies. As the authors point out, Estonia faces an unacceptably high HIV incidence rate of 50 new HIV cases per 100,000, this rate driven primarily by injection drug use. As such, the authors argue that Estonia's SEP network does not have the capacity to serve a growing IDU population at risk of transmitting HIV and pharmacy dispensation of clean syringes may be one potential approach to decreasing syringe sharing among high-risk injectors. It may be overly optimistic to consider the impact of higher threshold interventions such as pharmacy-based SEPs, given that IDU populations that engage in HIV risk behaviours such as syringe sharing are often hidden or hard to reach. Despite the need for a cautious approach, however, the findings presented by Vorobjov et al. may chart one potential course towards a more comprehensive societal response to reducing the health harms associated with injection drug use.

  11. Endoscopic ultrasound-guided fine needle aspiration of pancreatic lesions with 22 versus 25 Gauge needles: A meta-analysis.

    Science.gov (United States)

    Facciorusso, Antonio; Stasi, Elisa; Di Maso, Marianna; Serviddio, Gaetano; Ali Hussein, Mohammed Salah; Muscatiello, Nicola

    2017-10-01

    Robust data in favour of a clear superiority of 22 versus 25 Gauge needles for endoscopic ultrasound-guided fine needle aspiration are still lacking. We aimed to compare the diagnostic sensitivity, specificity and safety of these two needles for endoscopic ultrasound-guided fine needle aspiration of solid pancreatic lesions. A computerized bibliographic search was restricted to randomized controlled trials only. Pooled effects were calculated using a random-effects model and expressed in terms of risk ratio and 95% confidence interval. We analysed seven trials with 689 patients and 732 lesions (295 sampled with 22 Gauge needle, 309 with 25 Gauge needle, and 128 with both needles). A non-significant superiority of 25 Gauge in terms of pooled sensitivity (risk ratio: 0.93, 0.91-0.95 versus 0.89, 0.85-0.94 of 22 Gauge needle; p  = 0.13) and no difference in terms of specificity (1.00, 0.98-1.00 in both groups; p  = 0.85) were observed. Sample adequacy was similar between the two devices (risk ratio: 1.03, 0.99-1.06; p  = 0.15). Very few adverse events were observed and did not impact on patient outcomes. Our meta-analysis reveals non-superiority of 25 Gauge over 22 Gauge; hence no definitive recommendations over the use of one particular device can be made.

  12. Comparative cyto-histological study of needle tip aspirates and entry sites after intravitreal injection using different needle types.

    Directory of Open Access Journals (Sweden)

    Lyubomyr Lytvynchuk

    Full Text Available A comparison of the cellular content of needle tip aspirates and entry sites after transconjunctival intravitreal injection (IVI using different needle types was performed. White outbred rats and human cadaver eyes were used for IVI by hypodermic 27 gauge (G and 30G needles, and spinal anesthesia Pencan 27G needles. Aspiration of vitreous for quantitative morphological and cell cultivation analysis, as well as cyto-histological analysis of aspirates and entry sites were carried out. The most common cells in the aspirates from all needle types were conjunctival epithelial-, ciliary body non-pigmented epithelial- and sclerocyte-like cells and granular proteins. Crystallized vitreous specimens were present in each aspirate. The entry sites of hypodermic needles showed marked trauma in all wall layers of rat and human eyes accompanied by cellular destruction and hemorrhages. Pencan 27G needle caused less tissue trauma with partial reposition of sclerocytes. Transconjunctival IVIs with hypodermic 27G and 30G, and Pencan 27G needles result in trauma of all layers of the eyeball. The possible consequences of cellular content being cut and injected into the eye, as well as the entry site wound shape deserve future consideration and improvements.

  13. Single-Camera Closed-Form Real-Time Needle Tracking for Ultrasound-Guided Needle Insertion.

    Science.gov (United States)

    Najafi, Mohammad; Abolmaesumi, Purang; Rohling, Robert

    2015-10-01

    Many common needle intervention procedures are performed with ultrasound guidance because it is a flexible, cost-effective and widely available intra-operative imaging modality. In a needle insertion procedure with ultrasound guidance, real-time calculation and visualization of the needle trajectory can help to guide the choice of puncture site and needle angle to reach the target depicted in the ultrasound image. We found that it is feasible to calculate the needle trajectory with a single camera mounted directly on the ultrasound transducer by using the needle markings. Higher accuracy is achieved compared with other similar transducer-mounted needle trackers. We used an inexpensive, real-time and easy-to-use tracking method based on an automatic feature extraction algorithm and a closed-form method for pose estimation of the needle. The overall accuracy was 0.94 ± 0.46 mm. Copyright © 2015 World Federation for Ultrasound in Medicine & Biology. Published by Elsevier Inc. All rights reserved.

  14. [Acupuncture therapy for regaining consciousness in terms of acupoint location, needle insertion and needle manipulation].

    Science.gov (United States)

    Meng, Xianggang; Gu, Wenlong; Ma, Fen; Du, Yuzheng; Zhao, Qi

    2015-03-01

    Acupuncture therapy for regaining consciousness activates soreness, numbness, distention, heaviness, radiating and moving, electric shock and ant climbing sensations at the specific acupoints in the stroke patients. Radiating and moving sensations are the summary of needling sensations such as soreness, numbness and twitching presenting during lifting and thrusting manipulation. These sensations are the essential factors of the therapeutic effect of regaining consciousness. Radiating sensation refers to the conduction along meridians and radiation of soreness and numbness. Moving sensation refers to the local muscular twitching at acupoints and the involuntary movement of limbs, joints and the distal. Acupuncture at the specific acupoints achieves radiating and moving sensations for promoting the circulation in meridians, regulating qi and mind and balancing yin and yang in stroke patients. This therapy was introduced in the paper in view of acupoint location, needle insertion and manipulation.

  15. Ion exchange equilibrium constants

    CERN Document Server

    Marcus, Y

    2013-01-01

    Ion Exchange Equilibrium Constants focuses on the test-compilation of equilibrium constants for ion exchange reactions. The book first underscores the scope of the compilation, equilibrium constants, symbols used, and arrangement of the table. The manuscript then presents the table of equilibrium constants, including polystyrene sulfonate cation exchanger, polyacrylate cation exchanger, polymethacrylate cation exchanger, polysterene phosphate cation exchanger, and zirconium phosphate cation exchanger. The text highlights zirconium oxide anion exchanger, zeolite type 13Y cation exchanger, and

  16. Heat exchanger

    International Nuclear Information System (INIS)

    Bennett, J.C.

    1975-01-01

    A heat exchanger such as forms, for example, part of a power steam boiler is made up of a number of tubes that may be arranged in many different ways, and it is necessary that the tubes be properly supported. The means by which the tubes are secured must be as simple as possible so as to facilitate construction and must be able to continue to function effectively under the varying operating conditions to which the heat exchanger is subject. The arrangement described is designed to meet these requirements, in an improved way. The tubes are secured to a member extending past several tubes and abutment means are provided. At least some of the abutment means comprise two abutment pieces and a wedge secured to the supporting member, that acts on these pieces to maintain the engagement. (U.K.)

  17. Hip Pain: Dry Needling Versus Cortisone Injections.

    Science.gov (United States)

    2017-04-01

    Greater trochanteric pain syndrome (GTPS) is chronic, intermittent pain and tenderness on the outside of the hip. The medical community once thought that a swollen hip bursa was the source of such pain, which led to the use of corticosteroid injections to the bursa to help decrease swelling and pain. However, researchers now believe that injuries to the muscles and tendons around the hip are the actual cause of this pain, and that inflammation is often not involved. A study published in the April 2017 issue of JOSPT explores dry needling as an alternative to cortisone injections to reduce pain and improve function in patients with GTPS. J Orthop Sports Phys Ther 2017;47(4):240. doi:10.2519/jospt.2017.0504.

  18. [Improvement of sonographic visualization of cannula needle tips by alignment of the needle lumen : In vitro investigation of established needle tip forms].

    Science.gov (United States)

    Schwemmer, U; Geppert, T; Steinfeldt, T; Wunder, C

    2015-10-13

    In the context of ultrasound-guided peripheral nerve blocks (regional anesthesia), clear visualization of the needle tip and the target structure are mandatory for the performance of a safe puncture and injection. The purpose of this in vitro study was to analyze the visualization of different forms of needle tips and calibers of cannulas in a phantom simulating human tissue, with the help of a standardized image analysis system. Different depths and angles of the puncture needle in relation to the ultrasound probe were tested. Cannula needles established for use in regional anesthesia with different surfaces, diameters and needle tip form in 23 different combinations were analyzed. A gelatine-based phantom was used to simulate human tissue. The standardized visualization of the needle tip with the ultrasound probe was performed in plane at different angles (30°, 45° and 60°), depths of penetration (1 cm, 2 cm and 3 cm) and two different alignments of the cannula needle lumen to the ultrasound probe (0° and 180°). The screenshots of the ultrasound pictures were analyzed by quantifying the pixel brightness around the needle tip (region of interest) with a standardized software (score 0-255). In this study 1104 ultrasound images of cannula needles were analyzed. Diminished scores (reduced pixel brightness) of the needle tips were documented with increasing distance from the ultrasound probe. Comparison of punctures at angles of 30° and 45° showed no differences in needle tip visibility (same scores) but punctures at an angle of 60° were poorly visualized compared with 30° and 45° (mean scores 87.90 ± 11.60 vs. 78.40 ± 12.07, p cannula lumen towards the ultrasound probe (0°) was significantly more easily visualized when compared with the reverse alignment of 180° (mean scores 86.90 ± 12.74 vs. 84.80 ± 11.66, p = 0.003, respectively). No differences in visibility were detected between the different cannula needle diameters

  19. Remote Electromagnetic Vibration of Steerable Needles for Imaging in Power Doppler Ultrasound

    Science.gov (United States)

    Cabreros, Sarah S.; Jimenez, Nina M.; Greer, Joseph D.; Adebar, Troy K.; Okamura, Allison M.

    2015-01-01

    Robotic needle steering systems for minimally invasive medical procedures require complementary medical imaging systems to track the needles in real time. Ultrasound is a promising imaging modality because it offers relatively low-cost, real-time imaging of the needle. Previous methods applied vibration to the base of the needle using a voice coil actuator, in order to make the needle visible in power Doppler ultrasound. We propose a new method for needle tip vibration, using electromagnetic actuation of small permanent magnets placed inside the needle to improve needle tip visibility in power Doppler imaging. Robotic needle insertion experiments using artificial tissue and ex vivo porcine liver showed that the electromagnetic tip vibration method can generate a stronger Doppler response compared to the previous base vibration method, resulting in better imaging at greater needle depth in tissue. It also eliminates previous issues with vibration damping along the shaft of the needle. PMID:26413379

  20. Constructing seasonal LAI trajectory by data-model fusion for global evergreen needle-leaf forests

    Science.gov (United States)

    Wang, R.; Chen, J.; Mo, G.

    2010-12-01

    For decades, advancements in optical remote sensors made it possible to produce maps of a biophysical parameter--the Leaf Area Index (LAI), which is critically necessary in regional and global modeling of exchanges of carbon, water, energy and other substances, across large areas in a fast way. Quite a few global LAI products have been generated since 2000, e.g. GLOBCARBON (Deng et al., 2006), MODIS Collection 5 (Shabanov et al., 2007), CYCLOPES (Baret et al., 2007), etc. Albeit these progresses, the basic physics behind the technology restrains it from accurate estimation of LAI in winter, especially for northern high-latitude evergreen needle-leaf forests. Underestimation of winter LAI in these regions has been reported in literature (Yang et al., 2000; Cohen et al., 2003; Tian et al., 2004; Weiss et al., 2007; Pisek et al., 2007), and the distortion is usually attributed to the variations of canopy reflectance caused by understory change (Weiss et al., 2007) as well as by the presence of ice and snow on leaves and ground (Cohen, 2003; Tian et al., 2004). Seasonal changes in leaf pigments can also be another reason for low LAI retrieved in winter. Low conifer LAI values in winter retrieved from remote sensing make them unusable for surface energy budget calculations. To avoid these drawbacks of remote sensing approaches, we attempt to reconstruct the seasonal LAI trajectory through model-data fusion. A 1-degree LAI map of global evergreen needle-leaf forests at 10-day interval is produced based on the carbon allocation principle in trees. With net primary productivity (NPP) calculated by the Boreal Ecosystems Productivity Simulator (BEPS) (Chen et al., 1999), carbon allocated to needles is quantitatively evaluated and then can be further transformed into LAI using the specific leaf area (SLA). A leaf-fall scheme is developed to mimic the carbon loss caused by falling needles throughout the year. The seasonally maximum LAI from remote sensing data for each pixel

  1. Insertion mechanics of bioinspired needles into soft tissues.

    Science.gov (United States)

    Sahlabadi, Mohammad; Khodaei, Seyedvahid; Jezler, Kyle; Hutapea, Parsaoran

    2017-12-22

    Most studies to date confirm that any increase in the needle insertion force increases the damage to the tissue. When it comes to brain tissue, even minor damage can cause a long-lasting traumatic brain injury. Thus there is a great demand for innovative minimally invasive needles among the medical community. In our previous studies a novel bioinspired needle design with specially designed barbs was used to perform insertion tests into Polyvinyl chloride (PVC) tissue-mimicking gels, in which it decreased the insertion force by as much as 25%. In this work, bioinspired needles were designed using a CAD software, and were then manufactured using a 3 D printer. The insertion tests into bovine brain and liver were then performed to further investigate the performance of our bioinspired needles in real tissues. Our results show that there was a 10-25% decrease in the insertion force for insertions into bovine brain, and a 35-45% reduction in the insertion force for insertions into bovine liver using the proposed bioinspired needles. The reduction in the insertion force is due to the decrease in the friction force of the bioinspired needle with the bovine tissues, and its results are consistent with our previous results.

  2. PVA matches human liver in needle-tissue interaction.

    Science.gov (United States)

    de Jong, Tonke L; Pluymen, Loes H; van Gerwen, Dennis J; Kleinrensink, Gert-Jan; Dankelman, Jenny; van den Dobbelsteen, John J

    2017-05-01

    Medical phantoms can be used to study needle-tissue interaction and to train medical residents. The purpose of this research is to study the suitability of polyvinyl alcohol (PVA) as a liver tissue mimicking material in terms of needle-tissue interaction. Insertions into ex-vivo human livers were used for reference. Six PVA samples were created by varying the mass percentage of PVA to water (4m% and 7m%) and the number of freeze-thaw cycles (1, 2 and 3 cycles, 16hours of freezing at -19°C, 8hours of thawing). The inner needle of an 18 Gauge trocar needle with triangular tip was inserted 13 times into each of the samples, using an insertion velocity of 5 mm/s. In addition, 39 insertions were performed in two ex-vivo human livers. Axial forces on the needle were captured during insertion and retraction and characterized by friction along the needle shaft, peak forces, and number of peak forces per unit length. The concentration of PVA and the number of freeze-thaw cycles both influenced the mechanical interaction between needle and specimen. Insertions into 4m% PVA phantoms with 2 freeze-thaw cycles were comparable to human liver in terms of estimated friction along the needle shaft and the number of peak forces. Therefore, these phantoms are considered to be suitable liver mimicking materials for image-guided needle interventions. The mechanical properties of PVA hydrogels can be influenced in a controlled manner by varying the concentration of PVA and the number of freeze-thaw cycles, to mimic liver tissue characteristics. Copyright © 2017 Elsevier Ltd. All rights reserved.

  3. Needle-use declarations at the Olympic Games Rio 2016.

    Science.gov (United States)

    Allen, Molly; Stuart, Mark Campbell; Gribble, Hannah; Budgett, Richard; Pipe, Andrew

    2017-11-21

    We report on the results of the 'IOC Needle Policy' applied during the course of the Games of the XXXI Summer Olympiad in Rio de Janeiro, Brazil. The policy was intended to empower physicians to ensure appropriate clinical use of needles within team medical environments, enhance the safety of those responsible for housekeeping services and others in the Olympic environment, and permit documentation of such procedures as an adjunct to the doping control programme. Any needle use required the submission of an 'Injection Declaration Form' to IOC medical officials. All ' Injection Declaration Forms' were reviewed and archived. The declarations provided basic information regarding the nature of the needle use and the product(s) involved, the physician, athlete and respective National Olympic Committee (NOC). The details of the declarations were subsequently categorised. A total of 367 declarations were received from physicians representing 49 NOCs. Needle-use declarations were more common in athletics, gymnastics, football and aquatics. A single product was administered in 60% of the cases, and more than one product was administered in 40%. The majority of declarations indicated the use of local anaesthetics, glucocorticoids, non-steroidal anti-inflammatory drugs and analgesics. The introduction of a 'Needle Policy' in the Olympic Games setting was intended to minimise the use of needles by non-physicians, promote evidence-based practice and to deter needle-based doping practices. Declarations were received from 49 of 209 NOCs suggesting either that needle use is minimal among certain teams or opportunities remain to enhance compliance with such policies at future games. © Article author(s) (or their employer(s) unless otherwise stated in the text of the article) 2017. All rights reserved. No commercial use is permitted unless otherwise expressly granted.

  4. The Matchmaker Exchange: a platform for rare disease gene discovery.

    Science.gov (United States)

    Philippakis, Anthony A; Azzariti, Danielle R; Beltran, Sergi; Brookes, Anthony J; Brownstein, Catherine A; Brudno, Michael; Brunner, Han G; Buske, Orion J; Carey, Knox; Doll, Cassie; Dumitriu, Sergiu; Dyke, Stephanie O M; den Dunnen, Johan T; Firth, Helen V; Gibbs, Richard A; Girdea, Marta; Gonzalez, Michael; Haendel, Melissa A; Hamosh, Ada; Holm, Ingrid A; Huang, Lijia; Hurles, Matthew E; Hutton, Ben; Krier, Joel B; Misyura, Andriy; Mungall, Christopher J; Paschall, Justin; Paten, Benedict; Robinson, Peter N; Schiettecatte, François; Sobreira, Nara L; Swaminathan, Ganesh J; Taschner, Peter E; Terry, Sharon F; Washington, Nicole L; Züchner, Stephan; Boycott, Kym M; Rehm, Heidi L

    2015-10-01

    There are few better examples of the need for data sharing than in the rare disease community, where patients, physicians, and researchers must search for "the needle in a haystack" to uncover rare, novel causes of disease within the genome. Impeding the pace of discovery has been the existence of many small siloed datasets within individual research or clinical laboratory databases and/or disease-specific organizations, hoping for serendipitous occasions when two distant investigators happen to learn they have a rare phenotype in common and can "match" these cases to build evidence for causality. However, serendipity has never proven to be a reliable or scalable approach in science. As such, the Matchmaker Exchange (MME) was launched to provide a robust and systematic approach to rare disease gene discovery through the creation of a federated network connecting databases of genotypes and rare phenotypes using a common application programming interface (API). The core building blocks of the MME have been defined and assembled. Three MME services have now been connected through the API and are available for community use. Additional databases that support internal matching are anticipated to join the MME network as it continues to grow. © 2015 WILEY PERIODICALS, INC.

  5. Evaluation of The Value of Core Needle Biopsy in The Diagnosis of a Breast Mass

    Directory of Open Access Journals (Sweden)

    Asieh Sadat Fattahi

    2016-06-01

    Full Text Available Background: Core needle biopsy (CNB with histological findings is regarded as one of the most important diagnostic measures that make preoperative assessment and planning for appropriate treatment possible. The aim of this study was to determine the sensitivity and specificity of core biopsy results in our patients with benign and malignant breast lumps, especially for borderline breast lesions, by using a classification method.Methods: In this study, 116 patients who were referred to the Surgery Clinic of Ghaem Hospital, Mashhad University of Medical Sciences, Mashhad, Iran with breast lump and underwent diagnostic procedures such as mammography and ultrasound were selected. Core needle biopsy (Tru-cut #14 or 16 was performed. After that, excisional biopsy was done. The benign, malignant and unspecified samples obtained by core needle biopsy were evaluated with the samples of the surgical and pathological findings. Then, false positive, false negative, sensitivity, specificity, and diagnostic accuracy of the core needle biopsy method were calculated. Also, the National Health Service Breast Screening Program (NHSBSP classification was employed.Results: The mean age of the participants in this study was 39±13.13 years and the mean tumor size was 2.7 cm. An average of 3.35 biopsies was taken from all patients. Most of the pathology samples taken from CNB and excisional biopsy were compatible with invasive ductal carcinoma. Of the B type classifications, B5 was the most frequent in both methods. Borderline lesions B3 and B4 had a change in their category after surgery. About 2.5% of the samples in core biopsy were inadequate. Skin bruising was the most common core biopsy complication reported. While, the most common complication of excisional biopsy was hematoma. Accuracy, sensitivity, specificity, positive and negative predictive values of the core needle biopsy procedure compared with excisional biopsy was 95.5%, 92.6%, 100%, 100%, and 91

  6. Diagenesis of conifer needles in a coastal marine environment

    Science.gov (United States)

    Hedges, John I.; Weliky, K.

    1989-10-01

    Physically intact fir, hemlock and cedar needles were isolated from different horizons of a sediment core from a coastal marine bay (Dabob Bay, Washington State, U.S.A.) and from nearby trees and forest litter. Green fir, hemlock and cedar needles were all characterized by glucose-rich aldose mixtures (~30% of tissue carbon), the production of vanillyl and cinnamyl CuO-derived phenols (~8% of tissue carbon) and the presence of both pinitol and myo-inositol (1-2% of tissue carbon). Needles from forest litter were enriched in lignin phenols and non-glucose aldoses and depleted in glucose and cyclitols. The sediment core contained an average of 10 mg/1 of physically intact fir, hemlock and cedar needles, which occurred in similar relative abundances and accounted for less than 1% of the total nonwoody gymnosperm tissue. Compared to the green and litter counterparts, all sedimentary needles were greatly depleted in cyclitols, glucose and p-coumaric acid and enriched in vanillyl phenol precursors. The degree of elevation of vanillyl phenol yield from the degraded needles was used to estimate minimal carbon losses from the samples, which ranged from near 40% for needle litter to almost 70% for the deepest (~100 years old) sedimentary fir/hemlock samples. Although downcore increases in carbon loss and refractory organic components indicated in situ diagenesis, the bulk of overall degradation occurred either on land or during the first 10-20 years after deposition. Atomic C/N ratios of degraded needles were lower than for green counterparts, but nitrogen was lost overall. These relative changes indicate the following stability series: vanillyl phenols > N > ferulic acid, p-hydroxy phenols, most aldoses and bulk tissue > glucose and p-coumaric acid > cyclitols (near 100% loss). Vanillic acid to vanillin ratios, (Ad/Al)v, of the green fir and hemlock needles were unusually high (0.36-0.38) and decreased downcore. Diagenesis also decreased the cinnamyl/vanillyl phenol ratio

  7. Why should we use atraumatic needles in lumbar puncture?

    Directory of Open Access Journals (Sweden)

    Sandro Luiz de Andrade Matas

    2013-09-01

    Full Text Available Diagnostic lumbar puncture is essential to the diagnosis of central nervous system infections, subarachnoid haemorrhage and others neurological diseases. Myeloradicular involvement or life-threatening adverse events due to the procedure are rare, but less severe complications are more frequent. Post-lumbar puncture headache is the most common complication, by spinal fluid leakage due to delayed closure of a dural defect. Therefore, the development of fine needles, with differentiated atraumatic bevel, has contributed to minimize that problem. These generically called atraumatic needles cause less deformation of the dura mater then the Quincke® ones. So, why don't we use these atraumatic needles?

  8. Exchanging information

    International Nuclear Information System (INIS)

    1971-01-01

    The Agency has a statutory mandate to foster 'the exchange of scientific and technical information on the peaceful uses of atomic energy'. The prime responsibility for this work within the Agency lies with the Division of Scientific and Technical Information, a part of the Department of Technical Operations. The Division accomplishes its task by holding conferences and symposia (Scientific Conferences Section), through the Agency Library, by publishing scientific journals, and through the International Nuclear Information System (INIS). The Computer Section of the Division, which offers services to the Agency as a whole, provides resources for the automation of data storage and retrieval. (author)

  9. High Opening Injection Pressure Is Associated With Needle-Nerve and Needle-Fascia Contact During Femoral Nerve Block.

    Science.gov (United States)

    Gadsden, Jeff; Latmore, Malikah; Levine, D Matt; Robinson, Allegra

    2016-01-01

    High opening injection pressures (OIPs) have been shown to predict sustained needle tip contact with the roots of the brachial plexus. Such roots have a uniquely high ratio of fascicular versus connective tissue. It is unknown if this relationship is preserved during multifascicular nerve blockade. We hypothesized that OIP can predict needle-nerve contact during femoral nerve block, as well as detect needle contact with the fascia iliaca. Twenty adults scheduled for femoral block were recruited. Using ultrasound, a 22-gauge needle was sequentially placed in 4 locations: indenting the fascia iliaca, advanced through the fascia iliaca while lateral to the nerve, slightly indenting the femoral nerve, and withdrawn from the nerve 1 mm. At each location, the OIP required to initiate an injection of 1 mL D5W (5% dextrose in water) at 10 mL/min was recorded. Blinded investigators performed evaluations and aborted injections when an OIP of 15 psi was reached. Opening injection pressure was 15 psi or greater for 90% and 100% of cases when the needle indented the femoral nerve and fascia iliaca, respectively. Opening injection pressure was less than 15 psi for all 20 patients when the needle was withdrawn 1 mm from the nerve as well as at the subfascial position (McNemar χ2 P fascia iliaca (100%). Needle tip positions not indenting these structures were associated with OIP of less than 15 psi (100%).

  10. A novel prototype 3/5 laparoscopic needle driver: A validation study with conventional laparoscopic needle driver.

    Science.gov (United States)

    Ganpule, Arvind P; Deshmukh, Chaitanya S; Joshi, Tanmay

    2018-01-01

    The challenges in laparoscopic suturing include need to expertise to suture. Laparoscopic needle holder is a" key" instrument to accomplish this arduous task. The objective of this new invention was to develop a laparoscopic needle holder which would be adapted to avoid any wobble (with a shaft diameter same as a 5mm port), ensure accurate and dexterous suturing not just in adult patients but pediatric patients alike (with a short shaft diameter) and finally ensure seamless throw of knots with a narrow tip configuration. We did an initial evaluation to evaluate the validity of the prototype needle holder and its impact on laparoscopic suturing skills by experienced laparoscopic surgeons and novice laparoscopic Surgeons. Both the groups of surgeons performed two tasks. The first task was to grasp the needle and position it in an angle deemed ideal for suturing. The second task was to pass suture through two fixed points and make a single square knot. At the end of the tasks each participant was asked to complete a 5- point Likert's scale questionnaire (8 items; 4 items of handling and 4 items of suturing) rating each needle holder. In expert group, the mean time to complete task 1 was shorter with prototype 3/5 laparoscopic needle holder (11.8 sec Vs 20.8 sec). The mean time to complete task 2 was also shorter with prototype 3/5 laparoscopic needle holder (103.2 sec Vs 153.2 sec). In novice group, mean time to complete both the task was shorter with prototype 3/5 laparoscopic needle holder. The expert laparoscopic surgeons as well as novice laparoscopic surgeons performed laparoscopic suturing faster and with more ease while using the prototype 3/5 laparoscopic needle holder.

  11. Simple atmospheric hydrogen/deuterium exchange method for enumeration of labile hydrogens by electrospray ionization mass spectrometry.

    Science.gov (United States)

    Kostyukevich, Yury; Kononikhin, Alexey; Popov, Igor; Nikolaev, Eugene

    2013-06-04

    A simple method for hydrogen/deuterium exchange in a standard electrospray (ESI) ionization source is presented. In this method, a D₂O droplet is placed between the ESI needle and the entrance of the mass spectrometer and thus saturation of the atmosphere with deuterated vapor in the ESI region is achieved. It was shown that full exchange of up to 23 labile acidic hydrogens with a minimal back exchange with the surrounding atmospheric water can be performed by this method.

  12. Dataset on force measurements of needle insertions into two ex-vivo human livers

    NARCIS (Netherlands)

    de Jong, T.L.; Dankelman, J.; van den Dobbelsteen, J.J.

    2017-01-01

    A needle-tissue interaction experiment has been carried out, by inserting the inner needle of a trocar needle into two ex-vivo human livers. The dataset contains the forces that act on the needle during insertion and retraction into the livers. In addition, a MATLAB code file is included that

  13. A sewing needle in liver: a case report and review of the literature.

    Science.gov (United States)

    Feng, Quan Zhou; Wang, Jie; Sun, Hong

    2009-06-01

    Hepatic foreign bodies are quite rare. A sewing needle as a hepatic foreign body in an old woman is very rare and the managements have been varied. An old woman was incidentally found to have a sewing needle in her liver on abdominal X-ray. The sewing needle was kept stable in her liver after two years of follow-up. Eleven cases of sewing needle in the liver were reviewed. Sewing needle as a foreign body in the liver is rare. In general, the sewing needle should be removed through laparotomy or laparoscopy, but a stable and uncomplicated sewing needle in the liver need not be removed.

  14. Metallic sewing needle ingestion presenting as acute abdomen.

    Science.gov (United States)

    Misra, S; Jain, V; Ahmad, F; Kumar, R; Kishore, N

    2013-01-01

    We reported an unusual case of a 26-year-old man presenting to surgical emergency as generalized peritonitis following an ingestion of multiple metallic sewing needles. The X-ray of his abdomen showed pneumoperitoneum and multiple metallic foreign bodies in the abdominal cavity. An ultrasonogram of his abdomen showed multiple metallic foreign bodies in the abdominal cavity and urinary bladder. Emergency exploratory laparotomy was performed. On laparotomy, gastric and duodenal perforation was found through which metallic sewing needles were protruding out. A peritoneal lavage was done, and all the sewing needles were extracted from the perforation site, paracolic gutter, liver parenchyma, and urinary bladder. The primary repair of the perforation with omental patching was done with the drainage of subhepatic space and pelvic cavity. These multiple ingested sewing needles led to the perforation of the stomach and the duodenum, which resulted in perforation peritonitis.

  15. Video endoscopy: removal of retained sewing needles from the duodenum.

    Science.gov (United States)

    Gajbhiye, Ashok S; Gajbhiye, Raj N; Tirupude, Bhupesh H; Bajaj, Prasang P; Gupta, Tarush H

    2013-06-01

    We report an interesting case of a 21-year-old unmarried girl who swallowed six sewing needles. Her complaints were pain in the epigastrium, associated with nausea and vomiting. On examination, there was mild tenderness in the epigastrium. X-ray of the abdomen and endoscopy confirmed the presence of six needles in the duodenum, with tips lodged in the duodenal wall. Psychiatric opinion was sought which was normal. Under video endoscope (Pentax 2.8, EG 27708) guidance with Captura biopsy forceps without spikes (Cook DBF-2.4-160-S), six sewing needles were removed successfully from the duodenum through the endoscope channel without any complications. However, a video endoscopic removal of the retained six needles from duodenum is probably being reported for the first time.

  16. [Doctor HUANG Shi-ping's acupuncture with golden needles].

    Science.gov (United States)

    Chen, Teng-Fei; Ma, Zeng-Bin; Xin, Si-Yuan; Zhu, Jiang

    2013-08-01

    Taking Doctor HUANG Shi-ping as the representative, the school of Huang's golden needle is based on Chinese martial art. Golden needles are adopted as main tool. Attaching great importance on the combination of acupuncture and moxibustioin, it is also characterized with penetrating needling with long needles. Through the development of three generations, it once outshone other schools in the field of acupuncture, and became famous all over the world. It made great contribution to the development of the course of acupuncture. However, with the development of the history, the form of acupuncture education as well as apparatus were all undergone an unified reform. Therefore, Doctor HUANG Shi-ping's acupuncture school be lost gradually.

  17. NEEDLE ANATOMY CHANGES WITH INCREASING TREE AGE IN DOUGLAS FIR

    Science.gov (United States)

    Morphological differences between old growth and sapling (Pseudotsuga menziesii, (Mirb.) Franco) Douglas fir trees may extend to differences in needle anatomy. We used microscopy with image analysis to compare and quantify anatomical parameters in cross-sections of previous year...

  18. Needle phobia--changing venepuncture practice in ambulatory care.

    Science.gov (United States)

    Thurgate, Claire; Heppell, Sue

    2005-11-01

    Needle phobia is a term used in practice to describe an anticipatory fear of needle insertion. A proportion of children display high levels of fear, pain and behavioural distress when exposed to, or anticipating, needle insertion. A difficult routine venepuncture in our ambulatory care unit led staff to review practice and develop a three-step approach to overcoming 'needle phobia': relaxation, control and graded exposure. These developments have resulted in the unit becoming a local referral centre for children and young people between the ages of 5-19 years with this problem. Time and skill are needed to prevent or overcome this distressing problem which can be caused by health care professionals not listening to children and young people.

  19. A Multicenter comparative trial of a novel EUS-guided core biopsy needle (SharkCore™) with the 22-gauge needle in patients with solid pancreatic mass lesions.

    Science.gov (United States)

    Naveed, Mariam; Siddiqui, Ali A; Kowalski, Thomas E; Loren, David E; Khalid, Ammara; Soomro, Ayesha; Mazhar, Syed M; Yoo, Joseph; Hasan, Raza; Yalamanchili, Silpa; Tarangelo, Nicholas; Taylor, Linda J; Adler, Douglas G

    2018-01-01

    The ability to obtain adequate tissue of solid pancreatic lesions by EUS-guided remains a challenge. The aim of this study was to compare the performance characteristics and safety of EUS-FNA for evaluating solid pancreatic lesions using the standard 22-gauge needle versus a novel EUS biopsy needle. This was a multicenter retrospective study of EUS-guided sampling of solid pancreatic lesions between 2009 and 2015. Patients underwent EUS-guided sampling with a 22-gauge SharkCore (SC) needle or a standard 22-gauge FNA needle. Technical success, performance characteristics of EUS-FNA, the number of needle passes required to obtain a diagnosis, diagnostic accuracy, and complications were compared. A total of 1088 patients (mean age = 66 years; 49% female) with pancreatic masses underwent EUS-guided sampling with a 22-gauge SC needle (n = 115) or a standard 22-gauge FNA needle (n = 973). Technical success was 100%. The frequency of obtaining an adequate cytology by EUS-FNA was similar when using the SC and the standard needle (94.1% vs. 92.7%, respectively). The sensitivity, specificity, and diagnostic accuracy of EUS-FNA for tissue diagnosis were not significantly different between two needles. Adequate sample collection leading to a definite diagnosis was achieved by the 1 st , 2 nd , and 3 rd pass in 73%, 92%, and 98% of procedures using the SC needle and 20%, 37%, and 94% procedures using the standard needle (P < 0.001), respectively. The median number of passes to obtain a tissue diagnosis using the SC needle was significantly less as compared to the standard needle (1 and 3, respectively; P< 0.001). The EUS SC biopsy needle is safe and technically feasible for EUS-FNA of solid pancreatic mass lesions. Preliminary results suggest that the SC needle has a diagnostic yield similar to the standard EUS needle and significantly reduces the number of needle passes required to obtain a tissue diagnosis.

  20. Ultrasound guided needle biopsy of skeletal muscle in neuromuscular disease

    DEFF Research Database (Denmark)

    Lindequist, S; Schrøder, H D; Larsen, C

    1990-01-01

    Guided by ultrasonography percutaneous needle biopsy of skeletal muscle was performed in 24 patients, using the one hand held Biopty system and a 2 mm Tru-Cut needle. The specimens were graded with regard to diagnostic quality and utility and almost all specimens (96%) were of highest quality....... The use of ultrasonography was helpful in selecting a suitable area for the biopsy and vascular structures could be avoided. The procedure was well tolerated and easy to perform, and no complications were recorded....

  1. Cardiac tamponade caused by a migrating sewing needle.

    Science.gov (United States)

    Affronti, Alessandro; Di Bella, Isidoro; Di Lazzaro, Davide; Capozzi, Rosanna; Scarnecchia, Elisa; Ragni, Temistocle

    2016-12-01

    : Penetrating injuries of the heart caused by migrating needles have been rarely described. They usually occur accidentally or are self-inflicted in the setting of an underlying psychiatric disorder. We present an unusual case of cardiac tamponade caused by a sewing needle that migrated to the heart from the chest wall through the lung. The lesions were successfully repaired through a median sternotomy without cardiopulmonary bypass. The pathophysiological mechanism and the pertinent literature are briefly analysed.

  2. Percutaneous needle cricothyroidotomy with repetitive airway obstruction.

    Science.gov (United States)

    Hauswald, M; Ong, G; Yeoh, E

    1995-11-01

    To develop a technique for needle cricothyrotomy that mimics the normal respiratory cycle (using repetitive obstruction of the upper airway and relatively low flow oxygen through small catheters), a controlled trial in three anesthetized dogs was performed. Oxygen from a standard bottle and pressure reducer was delivered through the cricothyroid membrane at 0.36 L/kg/min, which is metabolically equivalent to 0.2 L/kg/min in an adult human. The upper airway was obstructed until the chest rose and then was unobstructed to allow exhalation. The animals were ventilated for 5 minutes to allow equilibration. Arterial PCO2 was measured after 2-minute periods of apnea and 3 minutes of ventilation, each repeated four times. The procedure was repeated in three other dogs at a flow of 0.18 L/kg/min to simulate a 50% air leak. Cricothyroid ventilation at 0.36 L/kg/min lowered the PCO2 from 65 mm Hg to 43 mm Hg, F = 258, P = .004. All PCO2 after 25 minutes were in the normal range. Ventilation at 0.18 L/kg/min stabilized the PCO2 at approximately 1.5 times normal (67 mm Hg versus 79 mm Hg for the preceding apnea, F = 77, P = .013). Flow rates achievable with 18- to 20-gauge catheters and standard oxygen sources are adequate for cricothyroid ventilation when the airway is repetitively obstructed to allow a normal respiratory cycle.

  3. Protective Capnothorax During Transthoracic Needle Biopsy

    Energy Technology Data Exchange (ETDEWEB)

    Kavanagh, John, E-mail: jokavana@tcd.ie; Siemienowicz, Miranda L.; Lyen, Stephen; Kandel, Sonja; Rogalla, Patrik [University of Toronto, Division of Cardiothoracic Imaging, Joint Department of Medical Imaging, University Health Network and Mount Sinai Hospital (Canada)

    2017-04-15

    PurposeTransthoracic needle biopsy (TTNB) is an established procedure in the management of pulmonary nodules. The most common complications are directly related to crossing the lung or visceral pleura during the biopsy. In this study, we describe the use of carbon dioxide instead of room air to create a protective “capnothorax” during TTNB.Materials and MethodsFive patients underwent creation of a capnothorax during TTNB. Parameters recorded were location and size of target, distance from pleura, length of procedure, volume of carbon dioxide, periprocedural complications and biopsy result.ResultsInduction of capnothorax was successful in all cases. In two patients, a continuous infusion of carbon dioxide was required to maintain an adequate volume of intrapleural gas. In two patients, the carbon dioxide resolved spontaneously and in the remaining patients it was aspirated at the end of the procedure. All biopsies were diagnostic with no periprocedural or postprocedural complications.ConclusionThis study suggests that protective iatrogenic capnothorax is a safe and effective technique during TTNB. The intrinsic properties and availability of carbon dioxide make it an attractive alternative to room air.

  4. Susuks (charm needles) in the craniofacial region

    International Nuclear Information System (INIS)

    Nambiar, P.; Ibrahim, N.; Tandjung, Y.R.M.; Shanmuhasuntharam, P.

    2008-01-01

    We conducted a study to determine the numbers of susuks (charm needles) and their distribution in the craniofacial region of susuk wearers, and the sex, racial affiliation, and age of the wearers. In addition, we sought to determine whether the presence of susuks posed any potential hazard to patients undergoing magnetic resonance imaging (MRI). We studied various radiographs of 33 susuk wearers (age range, 33-69 years) and investigated the most common sites of insertion in the craniofacial region. A susuk was also suspended inside a 1.5-T MRI machine to determined whether it was attracted by the machine's magnet. The largest number of susuks that we observed in the craniofacial region was 39 pins, and susuks were particularly numerous in Malay Muslim women. Other sites with susuks were the maxillofacial region (except the temporomandibular region) and the forehead. The susuks showed no ferromagnetic characteristics. As susuks are made from gold, they are generally biocompatible with human tissue and do not cause problems to their wearers. Gold and the other minor metal constituents found in susuks have no ferromagnetic characteristics and therefore pose no hazard to patients undergoing MRI. (author)

  5. Micro-needle electro-tactile display.

    Science.gov (United States)

    Tezuka, Mayuko; Kitamura, Norihide; Miki, Norihisa

    2015-08-01

    Haptic feedback is strongly demanded for high-precision robot-assisted surgery and teleoperation. The haptic feedback consists of force and tactile feedback, however tactile feedback has been little studied and the size and weight of the system poses challenges for practical applications. In this paper we propose a sheet-type wearable electro-tactile display which provides tactile sensations to the user as the feedback at a low voltage and power consumption. The display possesses needle-shaped electrodes, which can penetrate through the high-impedance stratum corneum. We developed the fabrication process and, as the first step, we investigated the tactile sensation that can be created to the fingertip by the display. Rough and smooth surfaces were successfully presented to the user. Then, we characterized the tactile display when used on the forearm, in particular, with respect to the spatial resolution. These tactile displays can be used to inform the user of the surface property of the parts of interest, such as tumor tissues, and to guide him in the manipulation of surgery robots.

  6. Neuromuscular Damage and Repair after Dry Needling in Mice

    Directory of Open Access Journals (Sweden)

    Ares Domingo

    2013-01-01

    Full Text Available Objective. Some dry needling treatments involve repetitive and rapid needle insertions into myofascial trigger points. This type of treatment causes muscle injury and can also damage nerve fibers. The aim of this study is to determine the injury caused by 15 repetitive punctures in the muscle and the intramuscular nerves in healthy mouse muscle and its ulterior regeneration. Methods. We repeatedly needled the levator auris longus muscle of mice, and then the muscles were processed with immunohistochemistry, methylene blue, and electron microscopy techniques. Results. Three hours after the dry needling procedure, the muscle fibers showed some signs of an inflammatory response, which progressed to greater intensity 24 hours after the procedure. Some inflammatory cells could still be seen when the muscle regeneration was almost complete seven days after the treatment. One day after the treatment, some changes in the distribution of receptors could be observed in the denervated postsynaptic component. Reinnervation was complete by the third day after the dry needling procedure. We also saw very fine axonal branches reinnervating all the postsynaptic components and some residual sprouts the same day. Conclusion. Repeated dry needling punctures in muscle do not perturb the different stages of muscle regeneration and reinnervation.

  7. A portable integrated system to control an active needle

    Science.gov (United States)

    Konh, Bardia; Motalleb, Mahdi; Ashrafiuon, Hashem

    2017-04-01

    The primary objective of this work is to introduce an integrated portable system to operate a flexible active surgical needle with actuation capabilities. The smart needle uses the robust actuation capabilities of the shape memory alloy wires to drastically improve the accuracy of in medical procedures such as brachytherapy. This, however, requires an integrated system aimed to control the insertion of the needle via a linear motor and its deflection by the SMA wire in real-time. The integrated system includes a flexible needle prototype, a Raspberry Pi computer, a linear stage motor, an SMA wire actuator, a power supply, electromagnetic tracking system, and various communication supplies. The linear stage motor guides the needle into tissue. The power supply provides appropriate current to the SMA actuator. The tracking system measures tip movement for feedback, The Raspberry Pi is the central tool that receives the tip movement feedback and controls the linear stage motor and the SMA actuator via the power supply. The implemented algorithms required for communication and feedback control are also described. This paper demonstrates that the portable integrated system may be a viable solution for more effective procedures requiring surgical needles.

  8. Novel design of honeybee-inspired needles for percutaneous procedure.

    Science.gov (United States)

    Sahlabadi, Mohammad; Hutapea, Parsaoran

    2018-04-18

    The focus of this paper is to present new designs of innovative bioinspired needles to be used during percutaneous procedures. Insect stingers have been known to easily penetrate soft tissues. Bioinspired needles mimicking the barbs in a honeybee stinger were developed for a smaller insertion force, which can provide a less invasive procedure. Decreasing the insertion force will decrease the tissue deformation, which is essential for more accurate targeting. In this study, some design parameters, in particular, barb shape and geometry (i.e. front angle, back angle, and height) were defined, and their effects on the insertion force were investigated. Three-dimensional printing technology was used to manufacture bioinspired needles. A specially-designed insertion test setup using tissue mimicking polyvinyl chloride (PVC) gels was developed to measure the insertion and extraction forces. The barb design parameters were then experimentally modified through detailed experimental procedures to further reduce the insertion force. Different scales of the barbed needles were designed and used to explore the size-scale effect on the insertion force. To further investigate the efficacy of the proposed needle design in real surgeries, preliminary ex vivo insertion tests into bovine liver tissue were performed. Our results show that the insertion force of the needles in different scales decreased by 21-35% in PVC gel insertion tests, and by 46% in bovine liver tissue insertion tests.

  9. Nursing and safety of silver needle diathermy treating ankylosing spondylitis.

    Science.gov (United States)

    Ning, Huaxiu; Wang, Yun; Yuan, Yiwen; Ning, Huaying

    2015-03-01

    This paper aims to discuss the nursing and safety of silver needle diathermy in the treatment for ankylosing spondylitis. We nursed 46 patients with ankylosing spondylitis treated with silver needle diathermy. Specific nursing was focused on physical condition evaluation and mental nursing before treatment, observation during and after treatment, diet nursing, needle eye nursing, functional training and propaganda and education when discharged. The result suggested that all the patients received mental nursing, diet guide, skin care, health education, functional training and follow-up visit from the nurse and all of them could endure silver needle diathermy as discomfort or drug allergy was barely found, so were slight scald and skin infection nearby the needle eye caused by fainting during acupuncture, accidental puncture or overheat. Follow-up visit showed that no patient suffered obvious untoward effect and the pain, joint range of motion and living condition were distinctly improved a week after discharging. In conclusion, during the treatment for ankylosing spondylitis applying silver needle diathermy, the nursing before, during and after the treatment can obviously reduce the complication, accelerate the recovery, which is highly safe.

  10. Needle stick injury in a radiology department: a decade analysis

    International Nuclear Information System (INIS)

    Sayani, R.; Rajani, A.

    2012-01-01

    Objectives: To determine the frequency of needle stick injury in health care workers of radiology department. Study type, settings and duration: Cross sectional, observational study conducted at the Radiology department of Aga Khan University hospital from January 2000 to May 2010. Subject and Methods: All self-reported needle stick injuries data of Health care workers of radiology department was recorded. The personnel involved (Radiologist, resident, radiographer, nurses etc), area of working and the causes of injury were identified including the procedural or post procedural details. Patient's status of hepatitis or blood borne infection was also noted. Data was recorded and analyzed in Excel worksheet. Results: A total of 55 health workers reported needle stick injuries at all sections of radiology departments with maximum number needle stick injuries at general radiography, fluoroscopy and IVP section. Radiographers and radiology residents received the maximum number of injuries. Major cause of injury was cannulation however, many injuries occurred during disposing or handling of bin. In majority of cases the patients were not infected with any known blood borne infections. Conclusions: Doctors and nurses get needle-stick injuries while carrying out clinical procedures, while, ancillary staff get infected post procedure during disposal of garbage. Policy message: Good occupational health and safety practices must be promoted to all staff. Safer disposal of needles is an important area where practice and procedure needs to be carefully reviewed. It is necessary to undertake a risk assessment, to offer counseling and Post Exposure Prophylaxis and treatment where necessary. (author)

  11. Dry needling in lateral epicondylitis: a prospective controlled study.

    Science.gov (United States)

    Uygur, Esat; Aktaş, Birol; Özkut, Afşar; Erinç, Samet; Yilmazoglu, Emime Gül

    2017-11-01

    Lateral epicondylitis (LE), a common disease, especially in middle age, causes decreased productivity and economic losses. The first-line treatment for LE is conservative and consists of topical and oral anti-inflammatory drugs, ice application, and brace use. If the first-line treatment fails, second-line treatment modalities, which are generally invasive, are offered. Second-line therapeutic regimens include saline, corticosteroid, or platelet-rich plasma injections. Dry needling is relatively new. We hypothesized that dry needling would be at least as effective as first-line treatment for LE. We compared the outcomes of first-line treatment and dry needling. The study allocated 110 patients into groups using online randomization software. After completing the Patient-rated Tennis Elbow Evaluation (PRTEE), patients in group I received dry needling, whereas those in group II received first-line treatment, consisting of ibuprofen 100 mg twice a day and a proximal forearm brace. The patients were evaluated after three weeks and six months. The study ultimately analyzed 92 patients. Although both treatment methods were effective at three weeks, dry needling was significantly more effective than the first-line treatment at six months. Because of the low complication rate, dry needling is a safe method, and it might be an effective treatment option for LE.

  12. Change of needle temperature during one cycle of sewing operation in thermal equilibrium

    OpenAIRE

    川西, 定子; 宮脇, 知子; Sadako, Kawanishi; Tomoko, Miyawaki

    2003-01-01

    The rise and fall during one cycle of sewing operation, in the equilibrium needle temperature was discussed. At a constant sewing velocity, the higher the needle temperature was, the bigger the amount of rise and fall during one cycle in an equilibrium needle temperature was. As the sewing velocity rose, the needle temperature increased, but the amount of rise and fall during one cycle of sewing operation in the equilibrium needle temperature decreased. The reason was that the fall time decre...

  13. Colonization and lignin decomposition of pine needle litter by Lophodermium pinastri

    OpenAIRE

    Osono, T.; Hirose, D.

    2010-01-01

    The colonization and lignin decomposition of pine (Pinus thunbergii and Pinus densiflora) needle litter by an endophytic fungus, Lophodermium pinastri, was examined with field observations, a field experiment and laboratory experiments. In pine needles collected from the field, needle mass per length and lignin content were lower in needle portions bearing Lophodermium fruiting bodies than in the remaining needle portions, whereas total carbohydrate content was not different between them. Tot...

  14. High-Field MRI-Compatible Needle Placement Robot for Prostate Interventions

    OpenAIRE

    SU, Hao; CAMILO, Alex; COLE, Gregory A.; HATA, Nobuhiko; TEMPANY, Clare M.; FISCHER, Gregory S.

    2011-01-01

    This paper presents the design of a magnetic resonance imaging (MRI) compatible needle placement system actuated by piezoelectric actuators for prostate brachytherapy and biopsy. An MRI-compatible modular 3 degree-of-freedom (DOF) needle driver module coupled with a 3-DOF x-y-z stage is proposed as a slave robot to precisely deliver radioactive brachytherapy seeds under interactive MRI guidance. The needle driver module provides for needle cannula rotation, needle insertion and cannula retrac...

  15. A novel prototype 3/5 laparoscopic needle driver: A validation study with conventional laparoscopic needle driver

    Directory of Open Access Journals (Sweden)

    Arvind P Ganpule

    2018-01-01

    Conclusion: The expert laparoscopic surgeons as well as novice laparoscopic surgeons performed laparoscopic suturing faster and with more ease while using the prototype 3/5 laparoscopic needle holder.

  16. Segmented heat exchanger

    Science.gov (United States)

    Baldwin, Darryl Dean; Willi, Martin Leo; Fiveland, Scott Byron; Timmons, Kristine Ann

    2010-12-14

    A segmented heat exchanger system for transferring heat energy from an exhaust fluid to a working fluid. The heat exchanger system may include a first heat exchanger for receiving incoming working fluid and the exhaust fluid. The working fluid and exhaust fluid may travel through at least a portion of the first heat exchanger in a parallel flow configuration. In addition, the heat exchanger system may include a second heat exchanger for receiving working fluid from the first heat exchanger and exhaust fluid from a third heat exchanger. The working fluid and exhaust fluid may travel through at least a portion of the second heat exchanger in a counter flow configuration. Furthermore, the heat exchanger system may include a third heat exchanger for receiving working fluid from the second heat exchanger and exhaust fluid from the first heat exchanger. The working fluid and exhaust fluid may travel through at least a portion of the third heat exchanger in a parallel flow configuration.

  17. Updating a Strategic Highway Safety Plan : Learning from the Idaho Transportation Department (ITD) - Proceedings from the Federal Highway Administration's (FHWA) Highway Safety Peer-to-Peer Exchange Program

    Science.gov (United States)

    2009-10-01

    On November 4, 2009, ITDs Office of Highway Operations and Safety partnered with the FHWA Office of Safety to host a one-day peer exchange. This event focused on the update of Idahos Strategic Highway Safety Plan (SHSP), entitled Toward Zero...

  18. Tourism, Tolerance, or Hospitality? An Assessment of a Native/Non-Native, Urban/Rural Youth Exchange Program between Fort Good Hope, NWT, and East Vancouver, BC

    Science.gov (United States)

    Hern, Matt

    2009-01-01

    This article considers and assesses a youth exchange project between two community-based youth centers: The Purple Thistle Centre in East Vancouver, British Columbia, and the K'asho Got'ine Youth Centre in Fort Good Hope, Northwest Territories. Both centers serve primarily low-income youth, but after that the similarities are very few. The…

  19. Power and Thermal Technologies for Air and Space-Scientific Research Program. Delivery Order 0017: Study of Microchip Power Module Materials Using Mini-Channel Heat Exchanger

    Science.gov (United States)

    2009-12-01

    at the mid-point of the channels. In fabricating the heat exchanger, a method of attaching the inlet and exit flow tubes (stainless- steel 625 ) to...and the inlet/exit tubing. The mixing chambers ( Inconel 600) were machined as two pieces which were later welded together to make one chamber. The

  20. Energy efficiency program through exchange of air conditioners in residential sector of Manaus city: a concrete experience; Programa de eficiencia energetica atraves da troca de condicionadores de ar no setor residencial de Manaus: uma experiencia concreta

    Energy Technology Data Exchange (ETDEWEB)

    Costa, Fabricio Rodrigues; Goncalves, Ana Catarina Lima Chaves; Cartaxo, Elizabeth Ferreira; Gomes, Hugo Miguel Oliveira; Nascimento, Nilton Correa; Inui, Raul Eiji; Guedes, Ricardo Augusto de Morais; Benchaya, Roberto Tavares [Universidade Federal do Amazonas (UFAM), Manaus, AM (Brazil)

    2004-07-01

    The present review attempts to evaluate the importance of efficient equipment diffusion in reducing energy consumption, based upon the Study-case of an air conditioned exchange program in Manaus city of Amazonas. In spite of the existence, in the actual market, of efficient technology, it has been, yet, badly diffused, mostly due to economical and informative laps. Therefore, once tried to demonstrate the potential benefits, in technical gains, of energy efficiency offered by efficient Air conditioned equipment, through a plan that favors the consumer's participation as an active contributor in the dissemination process of efficient technology, and a following program for efficiency evaluation, beside a tributary evaluation proposal, so that technology becomes accessible to the general population, attempting its benefices. In addition, the environmental benefits of that specific proposal are analyzed, trough the developed recycling program. (author)

  1. Pathology Reporting of Thyroid Core Needle Biopsy: A Proposal of the Korean Endocrine Pathology Thyroid Core Needle Biopsy Study Group

    OpenAIRE

    Jung, Chan Kwon; Min, Hye Sook; Park, Hyo Jin; Song, Dong Eun; Kim, Jang Hee; Park, So Yeon; Yoo, Hyunju; Shin, Mi Kyung

    2015-01-01

    In recent years throughout Korea, the use of ultrasound-guided core needle biopsy (CNB) has become common for the preoperative diagnosis of thyroid nodules. However, there is no consensus on the pathology reporting system for thyroid CNB. The Korean Endocrine Pathology Thyroid Core Needle Biopsy Study Group held a conference on thyroid CNB pathology and developed guidelines through contributions from the participants. This article discusses the outcome of the discussions that led to a consens...

  2. Endoscopic ultrasound-guided fine needle aspiration of pancreatic lesions with 22 versus 25 Gauge needles: A meta-analysis

    Science.gov (United States)

    Stasi, Elisa; Di Maso, Marianna; Serviddio, Gaetano; Ali Hussein, Mohammed Salah; Muscatiello, Nicola

    2016-01-01

    Background Robust data in favour of a clear superiority of 22 versus 25 Gauge needles for endoscopic ultrasound-guided fine needle aspiration are still lacking. Objective We aimed to compare the diagnostic sensitivity, specificity and safety of these two needles for endoscopic ultrasound-guided fine needle aspiration of solid pancreatic lesions. Methods A computerized bibliographic search was restricted to randomized controlled trials only. Pooled effects were calculated using a random-effects model and expressed in terms of risk ratio and 95% confidence interval. Results We analysed seven trials with 689 patients and 732 lesions (295 sampled with 22 Gauge needle, 309 with 25 Gauge needle, and 128 with both needles). A non-significant superiority of 25 Gauge in terms of pooled sensitivity (risk ratio: 0.93, 0.91–0.95 versus 0.89, 0.85–0.94 of 22 Gauge needle; p = 0.13) and no difference in terms of specificity (1.00, 0.98–1.00 in both groups; p = 0.85) were observed. Sample adequacy was similar between the two devices (risk ratio: 1.03, 0.99–1.06; p = 0.15). Very few adverse events were observed and did not impact on patient outcomes. Conclusion Our meta-analysis reveals non-superiority of 25 Gauge over 22 Gauge; hence no definitive recommendations over the use of one particular device can be made. PMID:29026598

  3. Single-Needle Arthrocentesis with Upper Compartment Distension versus Conventional Two-Needle Arthrocentesis: Randomized Clinical Trial

    Directory of Open Access Journals (Sweden)

    Eduardo Grossmann

    2017-01-01

    Full Text Available The objective of this study was to compare single-needle arthrocentesis with distension of the upper compartment of the temporomandibular joint (TMJ with the conventional two-needle arthrocentesis. Twenty-six patients with articular disc displacement without reduction (DDWOR were included in the study and assigned to two groups (n=13: single-needle arthrocentesis with distension of the upper compartment of the TMJ (1N and conventional two-needle arthrocentesis (2N. The maximum interincisal distance (MID and TMJ pain as measured by the visual analog scale (VAS were compared. MID and VAS data were obtained: before (T1, seven days after (T2, fifteen days after (T3, one month after (T4, three months after (T5, six months after (T6, nine months after (T7, and one year after the arthrocentesis procedures (T8. Considering each group individually, results of the VAS scores and MID measurements showed a significant difference between T1 and T2–T8 (p0.05. Both techniques tested were effective in reducing pain and increasing MID. Due to the advantages over the conventional two-needle arthrocentesis, single-needle arthrocentesis with distension of the upper compartment should be considered as the first treatment option for patients with painful hypomobilized TMJ of DDWOR.

  4. Diversity of endophytic fungi of single Norway spruce needles and their role as pioneer decomposers.

    Science.gov (United States)

    Müller, M M; Valjakka, R; Suokko, A; Hantula, J

    2001-07-01

    The diversity of endophytic fungi within single symptomless Norway spruce needles is described and their possible role as pioneer decomposers after needle detachment is investigated. The majority (90%) of all 182 isolates from green intact needles were identified as Lophodermium piceae. Up to 34 isolates were obtained from single needles. Generally, all isolates within single needles had distinct randomly amplified microsatellite (RAMS) patterns. Single trees may thus contain a higher number of L. piceae individuals than the number of their needles. To investigate the ability of needle endophytes to act as pioneer decomposers, surface-sterilized needles were incubated on sterile sand inoculated with autoclaved or live spruce forest humus layer. The dry weight loss of 13-17% found in needles after a 20-week incubation did not significantly differ between the sterilized and live treatments. Hence, fungi surviving the surface sterilization of needles can act as pioneer decomposers. A considerable portion of the needles remained green during the incubation. Brown and black needles, in which the weight loss had presumably taken place, were invaded throughout by single haplotypes different from L. piceae. Instead, Tiarasporella parca, a less common needle endophyte, occurred among these invaders of brown needles. Needle endophytes of Norway spruce seem thus to have different abilities to decompose host tissues after needle cast. L. piceae is obviously not an important pioneer decomposer of Norway spruce needles. The diversity of fungal individuals drops sharply when needles start to decompose. Thus, in single needles the decomposing mycota is considerably less diverse than the endophytic mycota.

  5. Dry Needling Combined With Physical Therapy in Patients With Chronic Postsurgical Pain Following Total Knee Arthroplasty: A Case Series.

    Science.gov (United States)

    Núñez-Cortés, Rodrigo; Cruz-Montecinos, Carlos; Vásquez-Rosel, Álvaro; Paredes-Molina, Orlando; Cuesta-Vargas, Antonio

    2017-03-01

    Study Design Case series. Background This case series describes a combined program of dry needling and therapeutic exercise in a small group of patients with persistent pain following total knee arthroplasty (TKA). Case Description Fourteen patients who underwent TKA had persistent postsurgical pain and myofascial trigger points that were nonresponsive to treatment with conventional physical therapy and/or medication. The patients received a weekly dry needling treatment in combination with therapeutic exercises for 4 weeks. Pain perception was assessed preintervention and postintervention with a visual analog scale and function was assessed with the Western Ontario and McMaster Universities Osteoarthritis Index, 6-minute walk test, timed up-and-go test, 30-second chair-stand test, and knee joint range of motion. Outcomes After TKA, the patients had a mean ± SD symptom duration of 6.3 ± 3.1 months. Subsequent to dry needling, patients reported a significant mean ± SD decrease in pain intensity from 55.6 ± 6.6 to 19.3 ± 5.6 (Pdry needling combined with therapeutic exercises, patients who had chronic pain following TKA showed clinically significant improvements in pain, range of motion, function, and myofascial trigger points. Future randomized clinical trials should further investigate the effectiveness of this protocol under similar conditions. Level of Evidence Therapy, level 4. J Orthop Sports Phys Ther 2017;47(3):209-216. Epub 3 Feb 2017. doi:10.2519/jospt.2017.7089.

  6. PERTINENT DRY NEEDLING CONSIDERATIONS FOR MINIMIZING ADVERSE EFFECTS - PART TWO.

    Science.gov (United States)

    Halle, John S; Halle, Rob J

    2016-10-01

    Dry needling (DN) is an evidence based treatment technique that is accepted and used by physical therapists in the United States. This clinical commentary is the second in a two-part series outlining some of the pertinent anatomy and other issues that are needed for optimal utilization of this treatment modality. Part one was an overview of the thorax with a summary of reported adverse effects (AEs) and the underlying anatomy that could be used to minimize patient risk. As is the case with any intervention, the technique of dry needling has some inherent patient risk. The incidence of AEs with this procedure is typically low, ranging from zero to approximately 10 percent. Knowledge of the underlying anatomy can be a key factor associated with decreasing the likelihood of an AE. The second part of this clinical commentary goes beyond the thorax, to explore the anatomy associated with dry needling the abdomen, pelvis, and back. In the abdomen, pelvis and back, dry needling can penetrate the peritoneal cavity or adjacent organs, resulting in AEs. A physiological reaction that is an AE secondary to a needle insertion, pain or fear, is an autonomic vasovagal response. Additionally, suggestions for dealing with the fearful patient, the obese patient, universal precautions, and other clinical considerations, are discussed. The purpose of parts one and part two of this clinical commentary is to minimize the risk of a dry needling AE. Dry needling is an effective adjunctive treatment procedure that is within the recognized scope of practice of the physical therapist. An evidence-based implementation of the procedure must be based on a thorough understanding of the underlying anatomy and the potential risks, with risks communicated to patients via informed consent. Level 5.

  7. PERTINENT DRY NEEDLING CONSIDERATIONS FOR MINIMIZING ADVERSE EFFECTS - PART ONE.

    Science.gov (United States)

    Halle, John S; Halle, Rob J

    2016-08-01

    Dry needling is an evidence-based treatment technique that is accepted and used by physical therapists in the United States. This treatment approach focuses on releasing or inactivating muscular trigger points to decrease pain, reduce muscle tension, and assist patients with an accelerated return to active rehabilitation. While commonly used, the technique has some patient risk and value of the treatment should be based on benefit compared to the potential risk. Adverse effects (AEs) with dry needling can be mild or severe, with overall incidence rates varying from zero to rates of approximately 10 percent. While mild AEs are the rule, any procedure that involves a needle insertion has the potential for an AE, with select regions and the underlying anatomy increasing the risk. Known significant AEs from small diameter needle insertion include pneumothorax, cardiac tamponade, hematoma, infection, central nervous system injury, and other complications. Underlying anatomy across individuals has variability, requiring an in-depth knowledge of anatomy prior to any needle placement. This commentary is an overview of pertinent anatomy in the region of the thorax, with a 'part two' that addresses the abdomen, pelvis, back, vasovagal response, informed consent and other pertinent issues. The purpose of the commentary is to minimize the risk of a dry needling AE. Dry needling is an effective adjunct treatment procedure that is within the recognized scope of physical therapy practice. Physical therapy education and training provides practitioners with the anatomy, basic sciences, and clinical foundation to use this intervention safely and effectively. A safe and evidenced-based implementation of the procedure is based on a thorough understanding of the underlying anatomy and the potential risks, with risks coordinated with patients via informed consent. Level 5.

  8. The Factors Influencing the Achievement of a U.S. Governmentally-Sponsored International Education Exchange Program's Objectives: Reflections of Alumni from the Kyrgyz Republic

    Science.gov (United States)

    Timlin, Kevin

    2017-01-01

    The purpose of this study is to determine which factors influence the achievement of program objectives for Kyrgyz Republic alumni of the U.S. governmentally sponsored UGRAD program. The UGRAD program was designed to provide university students from the former Soviet Union an opportunity to study at an institute of higher education in the United…

  9. Nevada Peer Exchange : Reno, NV, September 23-25, 2009

    Science.gov (United States)

    2009-09-01

    The Nevada Department of Transportation (NDOT) hosted a Peer Exchange of its Highway Safety Improvement Program (HSIP) on September 23-25, 2009. NDOT is updating their State HSIP Manual and initiated a peer exchange to share information and experienc...

  10. Reports distributed under the NRC Light-Water Reactor Safety Research Foreign Technical Exchange Program. Volume III, January--June 1977

    International Nuclear Information System (INIS)

    Sharp, D.S.; Cottrell, W.B.

    1977-01-01

    Lists of documents exchanged during the first half of 1977 under agreements between the U.S. Nuclear Regulatory Commission's Office of Nuclear Regulatory Research and the governments of France, Federal Republic of Germany, and Japan are presented. During this period, the NRC received 41 reports from France, 29 from F. R. Germany, and 24 from Japan, and in return sent 107 U.S. reports to each of these three countries

  11. [Novel echogenic needle for ultrasound-guided peripheral nerve block "Hakko type CCR"].

    Science.gov (United States)

    Takayama, Wataru; Yasumura, Rie; Kaneko, Takehiko; Kobayashi, Yoshiro; Kamada, Takaaki; Yoshikawa, Tamotsu; Aoyama, Yasuhiko

    2009-04-01

    A novel echogenic insulated nerve block needle (CCR-needle: Echogenic Needle Type CCR; Hakko, Japan) is commercially available since 2006 in Japan. This needle has three echogenic dimples, namely corner cube reflectors (CCR) on its tip. The CCR-needle will potentially provide a significant advantage for detecting the needle tip. In this report, we firstly evaluated this new disposable echogenic needle in simulation phantom, and demonstrated improved visibility of the needle tip. Afterwards, an interscalene brachial plexus block was performed on a male patient undergoing shoulder surgery. The needle insertion procedure was the "out of plane" ultrasound-guided technique using simultaneous electrical nerve stimulation. The surgery was successfully conducted without any complications.

  12. Semi-Automated Needle Steering in Biological Tissue Using an Ultrasound-Based Deflection Predictor.

    Science.gov (United States)

    Khadem, Mohsen; Rossa, Carlos; Usmani, Nawaid; Sloboda, Ron S; Tavakoli, Mahdi

    2017-04-01

    The performance of needle-based interventions depends on the accuracy of needle tip positioning. Here, a novel needle steering strategy is proposed that enhances accuracy of needle steering. In our approach the surgeon is in charge of needle insertion to ensure the safety of operation, while the needle tip bevel location is robotically controlled to minimize the targeting error. The system has two main components: (1) a real-time predictor for estimating future needle deflection as it is steered inside soft tissue, and (2) an online motion planner that calculates control decisions and steers the needle toward the target by iterative optimization of the needle deflection predictions. The predictor uses the ultrasound-based curvature information to estimate the needle deflection. Given the specification of anatomical obstacles and a target from preoperative images, the motion planner uses the deflection predictions to estimate control actions, i.e., the depth(s) at which the needle should be rotated to reach the target. Ex-vivo needle insertions are performed with and without obstacle to validate our approach. The results demonstrate the needle steering strategy guides the needle to the targets with a maximum error of 1.22 mm.

  13. Deuterium exchange in sesamol

    International Nuclear Information System (INIS)

    Hill, R.K.; Vaidya, N.A.; Morton, G.H.

    1982-01-01

    Trifluoroacetic acid-catalyzed exchange of sesamol in 2 H 2 O results in rapid exchange of H-6 and slower exchange of H-2. The deuterium atoms introduced are retained during conversion to the methyl and allyl ethers. (author)

  14. MAINTENANCE PLANNING OF THE SEWING NEEDLES OF SIMPLE SEWING MACHINES

    Directory of Open Access Journals (Sweden)

    ŞUTEU Marius Darius

    2017-05-01

    Full Text Available The effectiveness of simple sewing machines can be increased through the planning of predictive maintenance activities. The monitoring of the technical condition of the sewing needles of simple sewing machines was based on the measurement of their noise level. For this purpose a Center 322 sonometer was used, while the data obtained during the monitoring process was analyzed through the E322 software. The working speed of the simple sewing machine that was used for obtaining the experimental results varied from 200 stitches/minute to 4000 stitches/minute. The noise levels of a new needle at the working speed of 200 stitches/minute and 4000 stitches/minute were measured. The noise levels for a fault needle at the same working speed of 200 stitches/minute, respectively 4000 stitches/minute were also measured. Using Fuzzy Logic Toolbox ™ module of Matlab®, a decision-making system for determining when replacement of the sewing needles of simple sewing machines should be performed was developed. A case study illustrates the employment of the decision-making system based on fuzzy logic for a simple sewing machine. By replacing the sewing needles of simple sewing machines at the time specified through the decision-making system based on fuzzy logic, the occurrence of the failure can be prevented and the quality of textile products can be improved.

  15. Computer-vision-based inspecting system for needle roller bearing

    Science.gov (United States)

    Li, Wei; He, Tao; Zhong, Fei; Wu, Qinhua; Zhong, Yuning; Shi, Teiling

    2006-11-01

    A Computer Vision based Inspecting System for Needle Roller Bearing (CVISNRB) is proposed in the paper. The characteristic of technology, main functions and principle of CVISNRB are also introduced. CVISNRB is composed of a mechanic transmission and an automatic feeding system, an imaging system, software arithmetic, an automatic selecting system of inspected bearing, a human-computer interaction, a pneumatic control system, an electric control system and so on. The computer vision technique is introduced in the inspecting system for needle roller bearing, which resolves the problem of the small needle roller bearing inspecting in bearing production business enterprise, raises the speed of the inspecting, and realizes the automatic untouched and on-line examination. The CVISNRB can effectively examine the loss of needle and give the accurate number. The accuracy can achieve 99.5%, and the examination speed can arrive 15 needle roller bearings each minute. The CVISNRB has none malfunction in the actual performance in the past half year, and can meet the actual need.

  16. Development of Needle Insertion Manipulator for Central Venous Catheterization

    Science.gov (United States)

    Kobayashi, Yo; Hong, Jaesung; Hamano, Ryutaro; Hashizume, Makoto; Okada, Kaoru; Fujie, Masakatsu G.

    Central venous catheterization is a procedure, which a doctor insert a catheter into the patient’s vein for transfusion. Since there are risks of bleeding from arterial puncture or pneumothorax from pleural puncture. Physicians are strictly required to make needle reach up into the vein and to stop the needle in the middle of vein. We proposed a robot system for assisting the venous puncture, which can relieve the difficulties in conventional procedure, and the risks of complication. This paper reports the design structuring and experimental results of needle insertion manipulator. First, we investigated the relationship between insertion force and angle into the vein. The results indicated that the judgment of perforation using the reaction force is possible in case where the needling angle is from 10 to 20 degree. The experiment to evaluate accuracy of the robot also revealed that it has beyond 0.5 mm accuracy. We also evaluated the positioning accuracy in the ultrasound images. The results displays that the accuracy is beyond 1.0 mm and it has enough for venous puncture. We also carried out the venous puncture experiment to the phantom and confirm our manipulator realized to make needle reach up into the vein.

  17. Laryngeal chondrosarcoma diagnosed by core-needle biopsy.

    Science.gov (United States)

    Miyamaru, Satoru; Haba, Koichi

    2014-01-01

    We report a case of chondrosarcoma of the larynx, diagnosed by a percutaneous core-needle biopsy (CNB). Cartilaginous tumors of the larynx are usually diagnosed by biopsy with direct laryngomicroscopy under general anesthesia. However, patients find it difficult to undergo a biopsy under general anesthesia, for physical, economic, and social reasons. Instead, we can readily detect and sample tumors of the larynx using ultrasound under local anesthesia with reduced stress. Concerning needle-puncture biopsies, including fine-needle aspiration cytology (FNAC) and CNB, some studies have reported needle track dissemination, a possible complication in patients with malignant tumors. Thus, in the head and neck region, we generally use FNAC for biopsies, not CNB. However, it can be difficult to diagnose bone tumors by cytology alone. Regarding primary bone tumors, only one study has reported needle track dissemination by CNB, in osteosarcoma of the femur. Additionally, this complication has not been reported before with chondrosarcoma anywhere in the body. To our knowledge, this is the first report concerning chondrosarcoma of the larynx diagnosed by percutaneous CNB. We recommend CNB as a useful and safe diagnostic technique for primary bone tumors in the head and neck region. Copyright © 2014 Elsevier Inc. All rights reserved.

  18. Biopsy Needle Localization and Tracking Using ROI-RK Method

    Directory of Open Access Journals (Sweden)

    Yue Zhao

    2014-01-01

    Full Text Available ROI-RK method is a biopsy needle localization and tracking method. Previous research work has proved that it has a robust performance on different series of simulated 3D US volumes. Unfortunately, in real situations, because of the strong speckle noise of the ultrasound image and the different echogenic properties of the tissues, the real 3D US volumes have more complex background than the simulated images used previously. In this paper, to adapt the ROI-RK method in real 3D US volumes, a line-filter enhancement calculation only in the ROI is added to increase the contrast between the needle and background tissue, decreasing the phenomenon of expansion of the biopsy needle due to reverberation of ultrasound in the needle. To make the ROI-RK method more stable, a self-correction system is also implemented. Real data have been acquired on an ex vivo heart of lamb. The result of the ROI-RK method shows that it is capable to localize and track the biopsy needle in real situations, and it satisfies the demand of real-time application.

  19. Development of heat exchangers for nuclear service

    International Nuclear Information System (INIS)

    Hodge, R.I.; Dalrymple, D.G.

    1976-01-01

    Unusual design constraints, due to tube vibration, are called for when tube-in-shell heat exchangers are incorporated into CANDU type reactor power plants. CRNL has programs studying tube excitation and response, flow conditions, and the fretting process in such exchangers, tube plugging techniques, and eddy current scanning systems for inside bores of full-length tubes. (E.C.B.)

  20. Totalization Data Exchange (TDEX)

    Data.gov (United States)

    Social Security Administration — The Totalization Data Exchange (TDEX) process is an exchange between SSA and its foreign country partners to identify deaths of beneficiaries residing abroad. The...

  1. SU-F-J-10: Sliding Mode Control of a SMA Actuated Active Flexible Needle for Medical Procedures

    International Nuclear Information System (INIS)

    Podder, T

    2016-01-01

    Purpose: In medical interventional procedures such as brachytherapy, ablative therapies and biopsy precise steering and accurate placement of needles are very important for anatomical obstacle avoidance and accurate targeting. This study presents the efficacy of a sliding mode controller for Shape Memory Alloy (SMA) actuated flexible needle for medical procedures. Methods: Second order system dynamics of the SMA actuated active flexible needle was used for deriving the sliding mode control equations. Both proportional-integral-derivative (PID) and adaptive PID sliding mode control (APIDSMC) algorithms were developed and implemented. The flexible needle was attached at the end of a 6 DOF robotic system. Through LabView programming environment, the control commands were generated using the PID and APIDSMC algorithms. Experiments with artificial tissue mimicking phantom were performed to evaluate the performance of the controller. The actual needle tip position was obtained using an electromagnetic (EM) tracking sensor (Aurora, NDI, waterloo, Canada) at a sampling period of 1ms. During experiment, external disturbances were created applying force and thermal shock to investigate the robustness of the controllers. Results: The root mean square error (RMSE) values for APIDSMC and PID controllers were 0.75 mm and 0.92 mm, respectively, for sinusoidal reference input. In the presence of external disturbances, the APIDSMC controller showed much smoother and less overshooting response compared to that of the PID controller. Conclusion: Performance of the APIDSMC was superior to the PID controller. The APIDSMC was proved to be more effective controller in compensating the SMA uncertainties and external disturbances with clinically acceptable thresholds.

  2. Fabrication of Silk Nanofibres with Needle and Roller Electrospinning Methods

    Directory of Open Access Journals (Sweden)

    Nongnut Sasithorn

    2014-01-01

    Full Text Available In this study, silk nanofibres were prepared by electrospinning from silk fibroin in a mixture of formic acid and calcium chloride. A needle and a rotating cylinder were used as fibre generators in the spinning process. The influences of the spinning electrode and spinning parameters (silk concentration and applied voltage on the spinning process, morphology of the obtained fibres, and the production rate of the spinning process were examined. The concentration of the spinning solution influenced the diameter of the silk electrospun fibres, with an increase in the concentration increasing the diameters of the fibres in both spinning systems. The diameters of the electrospun fibres produced by roller electrospinning were greater than those produced by needle electrospinning. Moreover, increasing the concentration of the silk solution and the applied voltage in the spinning process improved the production rate in roller electrospinning but had less influence on the production rate in needle electrospinning.

  3. Indentation and needle insertion properties of the human eye.

    Science.gov (United States)

    Matthews, A; Hutnik, C; Hill, K; Newson, T; Chan, T; Campbell, G

    2014-07-01

    Characterization of the biomechanical properties of the human eye has a number of potential utilities. One novel purpose is to provide the basis for development of suitable tissue-mimicking material. The purpose of this study was to determine the indentation and needle insertion characteristics on human eye globes and tissue strips. An indenter assessed the elastic response of human eye globes and tissue strips under increasing compressive loads. Needle insertion determined the force (N) needed to penetrate various areas of the eye wall. The results demonstrated that globes underwent slightly greater indentation at the midline than at the central cornea, and corneal strips indented twofold more than scleral strips, although neither difference was significant (P=0.400 and P=0.100, respectively). Significant differences were observed among various areas of needle insertion (Phuman eye construct with potential utility as a model for use in ophthalmology research and surgical teaching.

  4. Spruce needles used as radioecological biotracers; Fichtennadeln als radiooekologische Bioindikatoren

    Energy Technology Data Exchange (ETDEWEB)

    Seidel, C.; Gruber, V.; Baumgartner, A. [BOKU - Univ. fuer Bodenkultur Wien (Austria). LLC-Labor Arsenal; Idinger, J. [Technische Univ. Wien (Austria). Atominst.; Fuerst, A. [BFW - Bundesforschungs- und Ausbildungszentrum fuer Wald, Naturgefahren und Landschaft, Wien (Austria). Inst. fuer Waldschutz, Pflanzenanalyse; Maringer, F.J. [BOKU - Univ. fuer Bodenkultur Wien (Austria). LLC-Labor Arsenal; BEV - Bundesamt fuer Eich- und Vermessungswesen, Wien (Austria)

    2009-07-01

    In a two years project spruce needle samples of the Austrian Bioindicator Grid were analysed by gamma-ray spectrometry to investigate the spatial and temporal distribution of radionuclides in spruce needles of the last 25 years with the main focus on the radioactive contamination before and after the Chernobyl fallout 1986. More than 600 spruce needle samples at selected locations of the Bioindicator Grid were analysed for different natural and anthropogenic radionuclides: {sup 137}Cs, {sup 40}K, {sup 210}Pb, {sup 226}Ra, {sup 228}Ra, {sup 238}U. Additionally, soil samples were taken at selected sites to study the soil-to-plant transfer. This radioecological evaluation is an important part of an existing environmental surveillance programme in Upper Austria in order to gain basic information on the impact of environmental changes on the radioecological behaviour of spruce trees. (orig.)

  5. Automatic needle insertion diminishes pain during growth hormone injection

    DEFF Research Database (Denmark)

    Main, K M; Jørgensen, J T; Hertel, N T

    1995-01-01

    Non-compliance in children receiving growth hormone (GH) treatment is often caused by pain on injection and difficulties in administration of GH. It has been suggested that automatic needle insertion diminishes pain perception. We quantitatively measured pain intensity on injection with two...... prototype pens for GH administration, providing either manual or automatic sc needle insertion, using a combined visual analogue/facial scale and a five-item scale in 18 children. With the automatic pen there was a significantly lower maximum pain score compared with the manual pen (median 28.5 versus 52.......0 mm) as well as a lower mean pain score (mean 13.7 versus 23.5 mm). The five-item scale revealed that automatic needle insertion was significantly less painful than manual insertion and 13 patients chose to continue treatment with the automatic pen. In conclusion, pain during GH injection can...

  6. Painful percutaneous transthoracic needle biopsy of Schwannoma: a case report

    International Nuclear Information System (INIS)

    Kim, Sung Hoon; Chun, Kyung Ah; Kim, Young Joo; Park, Seog Hee; Shin, Kyung Sub; Lee, Eun Jung

    1995-01-01

    Percutaneous aspiration needle biopsy of the intrathoracic disease is a safe, easy, and accurate diagnostic method. It usually causes mild pain or discomfort during the procedure. We had a patient who complained of severe sharp pain, well localized at the biopsy site of the target mass during CT-guided transthoracic aspiration biopsy. It was pathologically confirmed as an intrathoracic schwannoma after special staining. To our knowledge, there has been no published report of such a painful percutaneous needle biopsy in a patient with schwannoma in Korea. Two cases were reported in other radiologic journals. The severe sharp pain developed during the transthoracic aspiration needle biopsy is a reliable sign of neurogenic tumor, therefore the participating radiologist should recommend specific immumochemical stain for neurogenic tumor to pathologist

  7. Comparison between the Needle and Roller Electrospinning of Polyvinylbutyral

    Directory of Open Access Journals (Sweden)

    F. Yener

    2012-01-01

    Full Text Available The effect of the concentration of polyvinylbutyral solution on the process throughput and fibre properties was studied in needle and roller electrospinning. Whereas the polymer throughput is an optional independent parameter in needle electrospinning, it is a dependent parameter that is affected by both the material and process parameters in roller electrospinning. Polymer throughput increases considerably with an increasing concentration of polymer solutions in roller electrospinning. The properties of the nanofibers and the quality of the nanofiber layers were also studied. Fibre diameters increase with an increasing concentration in both techniques. Fibre diameters produced by needle electrospinning are smaller than those produced by roller electrospinning. The distribution of fibre diameters is rather narrow and not significantly dependent on the concentration of solutions in either technique.

  8. Endoscopic Ultrasound Guided Rendezvous Drainage of Biliary Obstruction Using a New Flexible 19-Gauge Fine Needle Aspiration Needle

    Directory of Open Access Journals (Sweden)

    Zhouwen Tang

    2016-01-01

    Full Text Available Background and Aim. A successful endoscopic ultrasound guided rendezvous (EUS-RV biliary drainage is dependent on accurate puncture of the bile duct and precise guide wire manipulation across the ampulla of Vater. We aim to study the feasibility of using a flexible 19-gauge fine aspiration needle in the performance of EUS-RV biliary drainage. Method. This is a retrospective case series of EUS-RV biliary drainage procedures at a single center. Patients who failed ERCP during the same session for benign or malignant biliary obstruction underwent EUS-RV using a flexible, nitinol covered, 19-gauge needle for biliary access and guide wire manipulation. Result. 24 patients underwent EUS-RV biliary drainage via extrahepatic access while 1 attempt was via intrahepatic access. The technical success rate was 80%, including 83.3% of cases via extrahepatic access. There was no significant difference in success rate of inpatient and outpatient procedures, benign or malignant indications, or type of guide wire used. Adverse events included mild pancreatitis (3 patients and cholangitis (1 patient. Conclusion. A flexible 19-gauge needle for biliary access can be safe and effective when used to perform EUS-RV biliary drainage. Direct comparison between the nitinol needle and conventional metal needles in the performance of EUS guided biliary drainage is needed.

  9. Reports distributed under the NRC Light-Water Reactor Safety Research Foreign Technical Exchange Program. Volume IV, July--December 1977

    International Nuclear Information System (INIS)

    Sharp, D.S.; Cottrell, W.B.

    1978-01-01

    Lists of documents exchanged during the second half of 1977 under agreements between the U.S. Nuclear Regulatory Commission's Office of Nuclear Regulatory Research and the governments of France, Federal Republic of Germany, Japan, and the United Kingdom are presented. During this period, the NRC received 1 report from France, 40 from the Federal Republic of Germany, and 11 from Japan, and in return sent 112 U.S. reports to each of these three countries and 23 reports to the United Kingdom

  10. Endophyte communities vary in the needles of Norway spruce clones.

    Science.gov (United States)

    Rajala, Tiina; Velmala, Sannakajsa M; Tuomivirta, Tero; Haapanen, Matti; Müller, Michael; Pennanen, Taina

    2013-03-01

    Endophytic fungi show no symptoms of their presence but can influence the performance and vitality of host trees. The potential use of endophytes to indicate vitality has been previously realized, but a standard protocol has yet to be developed due to an incomplete understanding of the factors that regulate endophyte communities. Using a culture-free molecular approach, we examined the extent to which host genotype influences the abundance, species richness, and community composition of endophytic fungi in Norway spruce needles. Briefly, total DNA was extracted from the surface-sterilized needles of 30 clones grown in a nursery field and the copy number of the fungal internal transcribed spacer (ITS) region of ribosomal DNA was estimated by quantitative PCR. Fungal species richness and community composition were determined by denaturing gradient gel electrophoresis and DNA sequencing. We found that community structure and ITS copy number varied among spruce clones, whereas species richness did not. Host traits interacting with endophyte communities included needle surface area and the location of cuttings in the experimental area. Although Lophodermium piceae is considered the dominant needle endophyte of Norway spruce, we detected this species in only 33% of samples. The most frequently observed fungus (66%) was the potentially pathogenic Phoma herbarum. Interestingly, ITS copy number of endophytic fungi correlated negatively with the richness of ectomycorrhizal fungi and thus potential interactions between fungal communities and their influence on the host tree are discussed. Our results suggest that in addition to environmental factors, endophyte communities of spruce needles are determined by host tree identity and needle surface area. Copyright © 2013 The British Mycological Society. Published by Elsevier Ltd. All rights reserved.

  11. The Gothic arch (needle point) tracing and condylar inclination.

    Science.gov (United States)

    el-Gheriani, A S; Winstanley, R B

    1987-11-01

    The records of 11 patients referred for treatment of TMJ disorders were used to compare condylar inclination found by drawing a tangent and by using a mathematic technique. Needle point tracing angles were also measured for the same patients and were compared with the condylar inclination. It can be concluded that (1) the mathematic technique outlined records a more accurate condylar angulation, and (2) there is a great variation in condylar inclination values between patients and between left and right sides of the same patient, and (3) there is no direct relationship between condylar inclination and the needle point tracing angle.

  12. Direct trocar insertion vs. Verres needle use for laparoscopic sterilization.

    Science.gov (United States)

    Borgatta, L; Gruss, L; Barad, D; Kaali, S G

    1990-09-01

    A randomized, prospective trial was designed to compare direct trocar insertion with prior peritoneal insufflation with a Verres needle for laparoscopic tubal sterilization. Direct trocar insertion resulted in fewer instrument insertions (21.8% vs. 7.8%) and use of smaller volumes of CO2 (2.67 vs. 2.32 L). Direct trocar use resulted in a decrease in operating time from 9 minutes, 40 seconds in the needle group to 7 minutes, 30 seconds in the trocar group. Minor omental injuries occurred in a small percentage of each group, while serious complications occurred once in each group.

  13. Laparoscopic removal of a needle from the pancreas

    Directory of Open Access Journals (Sweden)

    Amit Jain

    2013-01-01

    Full Text Available Foreign bodies inside the pancreas are rare and usually occur after the ingestion of sharp objects like fish bone, sewing needle and toothpick. Most of the ingested foreign bodies pass spontaneously through the anus without being noticed but about 1% of them can perforate through the wall of stomach or duodenum to reach solid organs like pancreas or liver. Once inside the pancreas they can produce complications like abscess, pseudoaneurysm or pancreatits. Foreign bodies of pancreas should be removed by endoscopic or surgical methods. We hereby report our experience of successful removal one a sewing needle from pancreas.

  14. Effect of fascia dry needling on non-specific thoracic pain - A proposed dry needling grading system.

    Science.gov (United States)

    Anandkumar, Sudarshan; Manivasagam, Murugavel

    2017-05-01

    This case report describes a 42-year-old female who presented with complaints of diffuse pain in her thoracic paraspinal region from T2 to T7. Physical examination revealed tenderness, increased turgor and restriction of her superficial fascia. A potential first time description of successful management utilizing fascia dry needling is described in this report with improvements noted in pain, range of motion, and functional activities. The patient was discharged from physiotherapy after four treatment sessions, and a follow-up after 3 months revealed that she was pain free and fully functional. A grading system (Sudarshan and Murugavel Dry Needling Grading Scale © ) is proposed describing the various grades of dry needling to guide clinical reasoning and decision-making.

  15. Bladder neck needle suspension for urinary incontinence in women.

    Science.gov (United States)

    Glazener, Cathryn Ma; Cooper, Kevin; Mashayekhi, Atefeh

    2017-07-25

    Bladder neck needle suspension is an operation traditionally used for moderate or severe stress urinary incontinence in women. About a third of adult women experience some urinary incontinence, and about a third of these have moderate or severe symptoms. Stress urinary incontinence (SUI) imposes significant health and economic burdens on society and the women affected. To determine the effects of needle suspension on stress or mixed urinary incontinence in comparison with other management options. We searched the Cochrane Incontinence Group Specialised Register, which contains trials identified from the Cochrane Central Register of Controlled Trials (CENTRAL), MEDLINE, MEDLINE in process, ClinicalTrials.gov, WHO ICTRP and handsearching of journals and conference proceedings (searched 12 November 2014), and the reference lists of relevant articles. Randomised or quasi-randomised trials that included needle suspension for the treatment of urinary incontinence. At least two authors assessed trials and extracted data independently. Two trial investigators provided additional information. We identified 10 trials, which included 375 women having six different types of needle suspension procedures and 489 who received comparison interventions. Needle suspensions were more likely to fail than open abdominal retropubic suspension. There was a higher subjective failure rate after the first year (91/313 (29%) failed versus 47/297 (16%) failed after open abdominal retropubic suspension). The risk ratio (RR) was 2.00 (95% confidence interval (CI) 1.47 to 2.72), although the difference in peri-operative complications was not significant (17/75 (23%) versus 12/77 (16%); RR 1.44, 95% CI 0.73 to 2.83). There were no significant differences for the other outcome measures. This effect was seen in both women with primary incontinence and women with recurrent incontinence after failed primary operations. Needle suspensions may be as effective as anterior vaginal repair (50/156 (32

  16. Exchange market pressure

    NARCIS (Netherlands)

    Jager, H.; Klaassen, F.; Durlauf, S.N.; Blume, L.E.

    2010-01-01

    Currencies can be under severe pressure in the foreign exchange market, but in a fixed (or managed) exchange rate regime that is not fully visible via the change in the exchange rate. Exchange market pressure (EMP) is a concept developed to nevertheless measure the pressure in such cases. This

  17. Improved radionuclide bone imaging agent injection needle withdrawal method can improve image quality

    International Nuclear Information System (INIS)

    Qin Yongmei; Wang Laihao; Zhao Lihua; Guo Xiaogang; Kong Qingfeng

    2009-01-01

    Objective: To investigate the improvement of radionuclide bone imaging agent injection needle withdrawal method on whole body bone scan image quality. Methods: Elbow vein injection syringe needle directly into the bone imaging agent in the routine group of 117 cases, with a cotton swab needle injection method for the rapid pull out the needle puncture point pressing, pressing moment. Improvement of 117 cases of needle injection method to put two needles into the skin swabs and blood vessels, pull out the needle while pressing two or more entry point 5min. After 2 hours underwent whole body bone SPECT imaging plane. Results: The conventional group at the injection site imaging agents uptake rate was 16.24%, improved group was 2.56%. Conclusion: The modified bone imaging agent injection needle withdrawal method, injection-site imaging agent uptake were significantly decreased whole body bone imaging can improve image quality. (authors)

  18. 22 CFR Appendix D to Part 62 - Annual Report-Exchange Visitor Program Services (GC/V), Department of State, Washington, DC 20547...

    Science.gov (United States)

    2010-04-01

    ... proposed new activity, cross-cultural activities, as well as the reciprocal component of the program. I... Number Professor ____ Research Scholar ____ Short-term Scholar ____ Trainee ____ Student (College and...

  19. A LARGE FOREIGN BODY IN THE TRACHEA (SEWING NEEDLE

    Directory of Open Access Journals (Sweden)

    P. D. Pryanikov

    2017-01-01

    Full Text Available The authors present a case study: an unusual foreign body (sewing needle in the trachea. Despite the large size and unusual shape of a foreign body, we managed to remove it through the airways with rigid upper traheobronchoscopy, avoiding complications.

  20. Atypical chest pain: Needles in a haystack | Jansen van Vuuren ...

    African Journals Online (AJOL)

    A 20-year-old man presented with a 6-month history of intermittent chest pain. Initial imaging demonstrated approximately 15 sewing needles lodged in his myocardium, predominantly in the left ventricle. The patient has been referred to cardiothoracic surgery for further management. His progress will be monitored closely.

  1. Metallic sewing needle ingestion presenting as acute abdomen ...

    African Journals Online (AJOL)

    We reported an unusual case of a 26‑year‑old man presenting to surgical emergency as generalized peritonitis following an ingestion of multiple metallic sewing needles. The X‑ray of his abdomen showed pneumoperitoneum and multiple metallic foreign bodies in the abdominal cavity. An ultrasonogram of his abdomen ...

  2. Antibacterial activity of endophytic fungi isolated from conifer needles

    African Journals Online (AJOL)

    Fungi, in particular endophytes are a promising source of new antimicrobial compounds. The aim of this study was to screen the extracts of conifer needle fungal endophytes for antimicrobial activity and taxonomically place fungi producing ones to determined active metabolites. Seventy three strains of endophytic fungi ...

  3. Multi hollow needle to plate plasmachemical reactor for pollutant decomposition

    International Nuclear Information System (INIS)

    Pekarek, S.; Kriha, V.; Viden, I.; Pospisil, M.

    2001-01-01

    Modification of the classical multipin to plate plasmachemical reactor for pollutant decomposition is proposed in this paper. In this modified reactor a mixture of air and pollutant flows through the needles, contrary to the classical reactor where a mixture of air and pollutant flows around the pins or through the channel plus through the hollow needles. We give the results of comparison of toluene decomposition efficiency for (a) a reactor with the main stream of a mixture through the channel around the needles and a small flow rate through the needles and (b) a modified reactor. It was found that for similar flow rates and similar energy deposition, the decomposition efficiency of toluene was increased more than six times in the modified reactor. This new modified reactor was also experimentally tested for the decomposition of volatile hydrocarbons from gasoline distillation range. An average efficiency of VOC decomposition of about 25% was reached. However, significant differences in the decomposition of various hydrocarbon types were observed. The best results were obtained for the decomposition of olefins (reaching 90%) and methyl-tert-butyl ether (about 50%). Moreover, the number of carbon atoms in the molecule affects the quality of VOC decomposition. (author)

  4. Histology of specimens taken by prostatectomy and needle biopsy ...

    African Journals Online (AJOL)

    Histology of specimens taken by prostatectomy and needle biopsy. P M Ngugi, B Byakika. Abstract. No Abstract. East African Medical Journal Vol. 84 (8) 2007: pp. 363-366. Full Text: EMAIL FREE FULL TEXT EMAIL FREE FULL TEXT · DOWNLOAD FULL TEXT DOWNLOAD FULL TEXT.

  5. Mass analysis of an atmospheric pressure plasma needle discharge

    International Nuclear Information System (INIS)

    Malovic, G; Puac, N; Lazovic, S; Petrovic, Z

    2010-01-01

    Mass spectrometric measurements of a plasma needle (an example of atmospheric pressure non-equilibrium plasma source) were made for neutrals and ions. The measurements were performed for the same geometry as the standard plasma needles albeit for a somewhat increased gas flow. We discuss some of the problems of performing mass analysis at atmospheric pressures. The yields of N, O and NO radicals from the plasma needle were determined for different powers of the RF source and different flow rates of working gas. Positive ions generated by the plasma needle itself were measured for the first time. Significant conversion of feed gases (nitrogen and oxygen) into radicals and ions of N and O, and NO was observed as well as depletion of atomic radicals N and O which in chemical reactions form more complex molecules. Biomedical and nanotechnology applications of atmospheric pressure plasmas require a detailed understanding of the source, and mass analysis is perhaps the best technique to focus on chemical kinetics and in many ways interaction with surfaces.

  6. Diagnostic accuracy of fine needle aspiration cytology in patients ...

    African Journals Online (AJOL)

    thyroid carcinoma being the most predominant type and colloid goiter was the most predominant benign thyroid disease. The sensitivity was 61.5% and specificity 89.5% . Conclusion: This study revealed high specificity and low sensitivity of Fine Needle Aspiration Cytology (FNAC) at detecting malignancy in thyroid nodules.

  7. Hepatitis B Vaccination Status and Needle stick Injuries among ...

    African Journals Online (AJOL)

    Background: Hepatits B virus (HBV) is the most common blood borne pathogen that poses an occupational risk to Health-care workers. The incidence of infection following needle stick injury has been reported to be high among medical students. Effective vaccines against HBV are available. The aim of this study was to ...

  8. Sensorimotor Learning of Acupuncture Needle Manipulation Using Visual Feedback.

    Directory of Open Access Journals (Sweden)

    Won-Mo Jung

    Full Text Available Humans can acquire a wide variety of motor skills using sensory feedback pertaining to discrepancies between intended and actual movements. Acupuncture needle manipulation involves sophisticated hand movements and represents a fundamental skill for acupuncturists. We investigated whether untrained students could improve their motor performance during acupuncture needle manipulation using visual feedback (VF.Twenty-one untrained medical students were included, randomly divided into concurrent (n = 10 and post-trial (n = 11 VF groups. Both groups were trained in simple lift/thrusting techniques during session 1, and in complicated lift/thrusting techniques in session 2 (eight training trials per session. We compared the motion patterns and error magnitudes of pre- and post-training tests.During motion pattern analysis, both the concurrent and post-trial VF groups exhibited greater improvements in motion patterns during the complicated lifting/thrusting session. In the magnitude error analysis, both groups also exhibited reduced error magnitudes during the simple lifting/thrusting session. For the training period, the concurrent VF group exhibited reduced error magnitudes across all training trials, whereas the post-trial VF group was characterized by greater error magnitudes during initial trials, which gradually reduced during later trials.Our findings suggest that novices can improve the sophisticated hand movements required for acupuncture needle manipulation using sensorimotor learning with VF. Use of two types of VF can be beneficial for untrained students in terms of learning how to manipulate acupuncture needles, using either automatic or cognitive processes.

  9. Main flavonoids in needles of Larix decidu A

    NARCIS (Netherlands)

    Niemann, Gerard J.

    Present work. Freeze-dried needles were extracted with acetone-water. Ether and butanol fractions were separated by repeated banding on paper. Nine major flavonoids were isolated (in solution) and identified by chromatographic and UV spectral data of both the original and alkaline and/or acid

  10. Fine Needle Aspiration: A simple and convenient alternative for ...

    African Journals Online (AJOL)

    Nine patients followed up to hospital for other medical problems unrelated to ganglion cysts and only one patient had to undergo surgical excision due to the large size of the cyst. No patient returned with a recurrence. Conclusion: Fine needle aspiration is a simple, non traumatic, inexpensive and low risk alternative method ...

  11. Atom sharp needles, the missing link in microneedle drug delivery

    NARCIS (Netherlands)

    Wissink, J.; Berenschot, Johan W.; Tas, Niels Roelof

    2008-01-01

    The skin barrier function is a major challenge for delivery of drugs via the skin. Located in the outermost layer of the skin, the stratum corneum (SC) consists of dead cells embedded in lipid regions, only 10-20 microm thick, tough but flexible and elastic. Hyperdermic needles penetrate the skin

  12. Mountain Norway spruce forests: Needle supply and its nutrient content

    Czech Academy of Sciences Publication Activity Database

    Kovářová, Marcela; Vacek, S.

    2003-01-01

    Roč. 49, - (2003), s. 327-332 ISSN 1212-4834 R&D Projects: GA AV ČR KSK6005114; GA ČR GA206/99/1416 Institutional research plan: CEZ:AV0Z6005908 Keywords : Šumava Mts. * Mountain Norway spruce forest * needle mass Subject RIV: EF - Botanics

  13. A retrospective analysis of ultrasound-guided large core needle ...

    African Journals Online (AJOL)

    A retrospective analysis of ultrasound-guided large core needle biopsies of breast lesions at a regional public hospital in Durban, KwaZulu-Natal, South Africa. ... Objective: To assess the influence of technical variables on the diagnostic yield of breast specimens obtained by using US-LCNB, and the sensitivity of detecting ...

  14. Diagnosis of prostate cancer with needle biopsy: Should all cases ...

    African Journals Online (AJOL)

    Background: The triad of digital rectal examination (DRE), serum prostate specific antigen, and transrectal ultrasound‑guided prostate biopsy is used in the detection of prostate cancer (PCa). It is recommended that all cases of PCa should be diagnosed with needle biopsy before treatment. The exclusion criteria for those ...

  15. Diagnosis of prostate cancer with needle biopsy: Should all cases ...

    African Journals Online (AJOL)

    2011-06-11

    Jun 11, 2011 ... Acheson MB, Patton RG, Howisey RL, Lane RF, Morgan A, Rowbotham RK. Three‑ to six‑year followup for 379 benign image‑guided large‑core needle biopsies of nonpalpable breast abnormalities. J Am Coll Surg 2002;195:462‑6. 8. Crystal P, Koretz M, Shcharynsky S, Makarov V, Strano S. Accuracy.

  16. Knowledge and experiences of needle prick injuries (NPI) among ...

    African Journals Online (AJOL)

    Nursing students on training are no exception, as they get exposed to acciden- tal needle pricks and contamination during their hospital activities. Lack of appropriate resources, knowledge and skills, coupled with the unavailability of the universal standard precautionary procedures and compliance thereof, constitute high ...

  17. Fine Needle Aspiration Cytology [FNAC] Technique As A Diagnostic ...

    African Journals Online (AJOL)

    Background: The Fine needle aspiration technique is frequently done in the University of Maiduguri Teaching Hospital for swellings from any anatomical site of the body. Objective: This paper is aimed at highlighting the importance of the technique in the diagnosis of tumours in any health care institution. Methods: A ...

  18. Diagnostic accuracy of fine needle aspiration cytology in patients ...

    African Journals Online (AJOL)

    Background: Thyroid disease affects about 5% of the World's population. Fine Needle Aspiration Cytology (FNAC) helps in planning extent of surgery. In some studies, FNAC has been found to have a low accuracy for malignancy. Objective: To estimate the sensitivity and specificity of FNAC in detecting malignancy for ...

  19. Fine needle aspiration cytology of breast lumps with histopathologic ...

    African Journals Online (AJOL)

    Objective: To determine the histopathologic correlation of fine needle aspiration cytology FNAC of breast masses seen in the department of histopathology of the Federal Medical Center Owo, Southwestern Nigeria. Design: This is a 5-year retrospective study of breast lumps seen at Department of Histopathology, Federal ...

  20. Comparing Aspiration and Non-aspiration Fine Needle Techniques ...

    African Journals Online (AJOL)

    Background: Nodular goitre remains a problem of enormous magnitude with an estimated prevalence of 19 to 35% worldwide. Of all thyroid nodules 5-10% are cancerous and require surgery. By identifying the benign ones unnecessary surgery, the associated morbidity and associated costs could be avoided. Fine needle ...

  1. Facile method to align crystalline needles composed of organic ...

    Indian Academy of Sciences (India)

    2017-09-23

    Sep 23, 2017 ... because of their potential applications to devices such as field-effect transistors. Although dip coating ... were precipitated. The thicknesses and lengths of the crystalline needles were controlled by the composition of the solvent .... An HMDS-treated glass slide, on which a PDMS block was obliquely placed ...

  2. The ergonomics of safe needle disposal following venous cannula ...

    African Journals Online (AJOL)

    QuickSilver

    PRIZE SUBMISSION. Southern African Journal of Anaesthesia & Analgesia - July 2003. 15. The ergonomics of safe needle disposal following venous cannula insertion ... jury per year. Again two studies have demonstrated that 40% of needlesticks occur during the actual procedure and almost 40% of injuries oc- cur during ...

  3. Ultrasound-guided percutaneous core needle biopsy of splenic lesions

    Energy Technology Data Exchange (ETDEWEB)

    Park, SangIk; Shin, Yong Moon; Won, Hyung Jin; Kim, Pyo Nyun; Lee, Moon Gyu [Dept. of Radiology and Research Institute of Radiology, University of Ulsan College of Medicine, Asan Medical Center, Seoul (Korea, Republic of)

    2017-05-15

    To evaluate the safety and efficacy of ultrasound-guided percutaneous core needle biopsy of splenic lesions. This retrospective study included 30 patients who underwent percutaneous core needle biopsy of their splenic lesions using 18- or 20-gauge needles between January 2001 and July 2016 in a single tertiary care center. The characteristics of the splenic lesions were determined by reviewing the ultrasound and computed tomography examinations. Acquisition rate and diagnostic accuracy were calculated, using pathologic results of the splenectomy specimen, clinical course and/or imaging follow-up as a reference standard. Post-procedure complications were identified from electronic medical records, laboratory findings and computed tomography images. Seventy-three specimens were obtained from the 30 patients and splenectomy was performed in 2 patients. Twenty-nine of the 30 patients had focal splenic lesions, while the remaining patient had homogeneous splenomegaly. Acquisition rate and diagnostic accuracy were 80.0% (24/30) and 76.7% (23/30), respectively. Perisplenic hemorrhage without hemodynamic instability developed in one patient. Ultrasound-guided percutaneous core needle biopsy of splenic lesions is a safe method for achieving a histopathologic diagnosis and can be considered as an alternative to splenectomy in patients with a high risk of splenectomy-related complications.

  4. A Cross Section Study to Correlate Fine Needle Aspiration Cytology ...

    African Journals Online (AJOL)

    ADMIN

    Background: Needle Aspiration Cytology (FNAC) is cheap, simple, quick, minimally invasive procedure that is widely used for preoperative diagnosis of Parotid tumours. Methods: Twenty five patients were prospectively studied over a two-year period at four major hospitals in Zambia. FNAC was done using a 10cc syringe ...

  5. Prevalence of needle stick injuries among healthcare workers at the ...

    African Journals Online (AJOL)

    Healthcare workers (HCW) can easily contact infections with blood-borne pathogens such infections are hepatitis B virus (HBV), hepatitis C virus (HCV) and human immunodeficiency virus (HIV), when health workers are exposed to occupational blood diseases through the use of sharp instruments and needle sticks.

  6. Pressure on the conical surface of needle valves

    Czech Academy of Sciences Publication Activity Database

    Tesař, Václav

    2014-01-01

    Roč. 220, č. 1 (2014), s. 1-12 ISSN 0924-4247 R&D Projects: GA ČR GA13-23046S Institutional support: RVO:61388998 Keywords : nozzle * needle nozzle * flow separation Subject RIV: BK - Fluid Dynamics Impact factor: 1.903, year: 2014 http://www.sciencedirect.com/science/article/pii/S0924424714004087

  7. SKINNY – SKIN thickness and Needles in the Young | Marran ...

    African Journals Online (AJOL)

    Inappropriate insulin injection technique, inadvertent intramuscular (IM) injections, needle phobia and insulin omission negatively affect glucose control. Objectives. To document skin and skin plus subcutaneous skin thickness using high resolution ultrasound (US) in a group of children and adolescents with type 1 diabetes.

  8. Prevalence of needle stick injuries among healthcare workers

    African Journals Online (AJOL)

    Abe Olugbenga

    ABSTRACT. Background:A needle-stick is a sharp-pointed instrument used for puncturing tissues or passing a ligature around or through a vessel, but possibly also it could be a sharp instruments or objects for other purposes. Healthcare workers (HCW) can easily contact infections with blood-borne pathogens such ...

  9. CT guided percutaneous needle biopsy of the chest: initial experience

    African Journals Online (AJOL)

    The objective of this article is to report our first experience of CT guided percutaneous thoracic biopsy and to demonstrate the accuracy and safety of this procedure. This was a retrospective study of 28 CT-Guided Percutaneous Needle Biopsies of the Chest performed on 24 patients between November 2014 and April 2015.

  10. Fine needle aspiration cytology of breast lumps with histopathologic ...

    African Journals Online (AJOL)

    E-mail: tunjiomotayo@yahoo.co.uk. Conflict of interest: None declared. SUMMARY. Objective: To determine the histopathologic correlation of fine needle aspiration cytology FNAC of breast masses seen in the department of histopathology of the Federal Medical Center Owo, Southwestern Nigeria. Design: This is a 5-year ...

  11. Need for needle and syringe programmes in Africa | Derrick | African ...

    African Journals Online (AJOL)

    A narrative review was conducted, drawing on peer reviewed literature and relevant grey literature on injecting drug use in African countries and ethical dilemmas facing harm reduction especially the provision of sterile needles and syringes to injecting drug users. This review aimed at highlighting evidence and the ...

  12. Emerging Needle Blight Diseases in Atlantic Pinus Ecosystems of Spain

    Directory of Open Access Journals (Sweden)

    Esther Ortíz de Urbina

    2016-12-01

    Full Text Available Red band needle blight caused by Dothistroma septosporum and D. pini, and brown spot needle blight caused by Lecanosticta acicola provoke severe and premature defoliation in Pinus, and subsequent reduction of photosynthetic surfaces, vitality, and growth in young and adult trees. The recurrent damage results in branch and tree death. Until recently, pine needle blight diseases have had only minor impacts on native and exotic forest trees in the North of Spain, but in the past five years, these pathogen species have spread widely and caused severe defoliation and mortality in exotic and native plantations of Pinus in locations where they were not detected before. In an attempt to understand the main causes of this outbreak and to define the effectiveness of owners’ management strategies, four research actions were implemented: a survey of the management activities implemented by the owners to reduce disease impact, the evaluation of specific symptoms and damage associated with infection, and the identification of the causative pathogenic species and their reproductive capacity. Morphological characteristics of the fungus and molecular identification were consistent with those of Lecanosticta acicola and Dothistroma spp., D. septosporum, D. Pini, and both mating types were present for the three identified pathogens. The local silvicultural management performed, mainly pruning and thinning, was not resulting in the expected improvement. The results of this study can be applied to establish guidelines for monitoring and controlling the spread of needle blight pathogens.

  13. Efficacy of Fine Needle Aspiration Cytology in the Diagnosis of ...

    African Journals Online (AJOL)

    Background: Fine needle aspiration cytology (FNAC) is a safe, easy to perform, cost effective and an accurate procedure used in the diagnosis of thyroid lesions. Objective: In this study we aimed to demonstrate the effectiveness of FNAC in the diagnosis of thyroid swellings in Red Sea State, Sudan. Methods: FNAC from ...

  14. Fine-needle aspiration biopsy of lymph nodes

    African Journals Online (AJOL)

    2012-02-02

    Feb 2, 2012 ... FNAB is minimally painful when performed correctly. The exceptions would be placing the needle in the SCM muscle, brachial plexus, and inflamed salivary glands. Molecular genetic studies. Both the polymerase chain reaction (PCR) and fluorescence in situ hybridisation (FISH) identify tiny regions of DNA ...

  15. The Single Needle Lockstitch Machine. [Setting a Collar.] Module 5.

    Science.gov (United States)

    South Carolina State Dept. of Education, Columbia. Office of Vocational Education.

    This module on sewing collars, one in a series on the single needle lockstitch sewing machine for student self-study, contains three sections. Each section includes the following parts: an introduction, directions, an objective, learning activities, student information, student self-check, check-out activities, and an instructor's final checklist.…

  16. The Single Needle Lockstitch Machine. [Setting Zippers.] Module 8.

    Science.gov (United States)

    South Carolina State Dept. of Education, Columbia. Office of Vocational Education.

    This module on setting zippers, one in a series on the single needle lockstitch sewing machine for student self-study, contains five sections. Each section includes the following parts: an introduction, directions, an objective, learning activities, student information, student self-check, check-out activities, and an instructor's final checklist.…

  17. The Single Needle Lockstitch Machine. [Sewing Seams.] Module 4.

    Science.gov (United States)

    South Carolina State Dept. of Education, Columbia. Office of Vocational Education.

    This module on sewing seams, one in a series on the single needle lockstitch sewing machine for student self-study, contains three sections. Each section includes the following parts: an introduction, directions, an objective, learning activities, student information, student self-check, check-out activities, and an instructor's final checklist.…

  18. The Single Needle Lockstitch Machine. [Constructing Darts.] Module 3.

    Science.gov (United States)

    South Carolina State Dept. of Education, Columbia. Office of Vocational Education.

    This module on constructing darts, one in a series on the single needle lockstitch sewing machine for student self-study, contains two sections. Each section includes the following parts: an introduction, directions, an objective, learning activities, student information, student self-check, check-out activities, and an instructor's final…

  19. Ultrasound-guided percutaneous core needle biopsy of splenic lesions

    International Nuclear Information System (INIS)

    Park, SangIk; Shin, Yong Moon; Won, Hyung Jin; Kim, Pyo Nyun; Lee, Moon Gyu

    2017-01-01

    To evaluate the safety and efficacy of ultrasound-guided percutaneous core needle biopsy of splenic lesions. This retrospective study included 30 patients who underwent percutaneous core needle biopsy of their splenic lesions using 18- or 20-gauge needles between January 2001 and July 2016 in a single tertiary care center. The characteristics of the splenic lesions were determined by reviewing the ultrasound and computed tomography examinations. Acquisition rate and diagnostic accuracy were calculated, using pathologic results of the splenectomy specimen, clinical course and/or imaging follow-up as a reference standard. Post-procedure complications were identified from electronic medical records, laboratory findings and computed tomography images. Seventy-three specimens were obtained from the 30 patients and splenectomy was performed in 2 patients. Twenty-nine of the 30 patients had focal splenic lesions, while the remaining patient had homogeneous splenomegaly. Acquisition rate and diagnostic accuracy were 80.0% (24/30) and 76.7% (23/30), respectively. Perisplenic hemorrhage without hemodynamic instability developed in one patient. Ultrasound-guided percutaneous core needle biopsy of splenic lesions is a safe method for achieving a histopathologic diagnosis and can be considered as an alternative to splenectomy in patients with a high risk of splenectomy-related complications

  20. Morphea on the Breast after a Needle Biopsy

    OpenAIRE

    Arase, Noriko; Igawa, Ken; Senda, Satoko; Terao, Mika; Murota, Hiroyuki; Katayama, Ichiro

    2011-01-01

    Localized scleroderma (morphea) usually develops spontaneously, but the precise mechanisms underlying disease development are obscure. However, a significant number of cases suggest that morphea is induced by external stimuli. Herein, we report a case of morphea that developed after a needle biopsy.

  1. Competition of Scleroconidioma sphagnicola with fungi decomposing spruce litter needles

    Czech Academy of Sciences Publication Activity Database

    Koukol, Ondřej; Mrnka, Libor; Kulhánková, A.; Vosátka, Miroslav

    2006-01-01

    Roč. 84, - (2006), s. 469-476 ISSN 0008-4026 R&D Projects: GA ČR(CZ) GA206/05/0269 Institutional research plan: CEZ:AV0Z60050516 Keywords : litter needles * competition * agar pairing Subject RIV: EF - Botanics Impact factor: 1.193, year: 2006

  2. Needle parameter variation of mature black spruce families displaying a genetic x environment interaction in growth

    Science.gov (United States)

    John E. Major; Kurt H. Johnsen; Debby C. Barsi; Moira Campbell

    2013-01-01

    To examine soil moisture stress, light, and genetic effects on individual needle parameters and investigate total needle contribution to productivity, individual and total needle parameter variation were quantified in 32-year-old black spruce from five crown positions from four full-sib families studied previously for drought tolerance and differential productivity on...

  3. Mechanics-Based Model for Predicting In-Plane Needle Deflection with Multiple Bends

    NARCIS (Netherlands)

    Roesthuis, Roy; Abayazid, Momen; Misra, Sarthak

    2012-01-01

    Bevel-tipped flexible needles naturally bend when inserted into soft tissue. Steering such needles along curved paths allows one to avoid anatomical obstacles and reach locations inside the human body which are unreachable with rigid needles. In this study, a mechanics-based model is presented which

  4. EUS Needle Identification Comparison and Evaluation study (with videos)

    DEFF Research Database (Denmark)

    Tang, Shou-Jiang; Vilmann, Andreas Slot; Saftoiu, Adrian

    2016-01-01

    BACKGROUND AND AIMS: EUS-guided FNA or biopsy sampling is widely practiced. Optimal sonographic visualization of the needle is critical for image-guided interventions. Of the several commercially available needles, bench-top testing and direct comparison of these needles have not been done to rev...

  5. Terpenoid resin distribution in conifer needles with implications for red tree vole, Arborimus longicaudus, foraging

    Science.gov (United States)

    Rick G. Kelsey; Eric D. Forsman; James K. Swingle

    2009-01-01

    Tree voles are dietary specialists, feeding almost exclusively on conifer needles and bark. They reduce their exposure to conifer chemical defenses by physically removing resin ducts from many needles before ingesting the remaining tissue. The portion of needle removed differs among tree species, depending on the location of the resin ducts. To evaluate the amount of...

  6. Preventing the dental needle prick injury (DNPI) : a new approach to ...

    African Journals Online (AJOL)

    ... used dental needles. This paper introduces a technique of discarding the used dental needle in a safe manner which can reduce the risk of percutaneous injuries to dentists and their support staff and health care workers involved in medical waste disposal leading to safe incineration. Keywords: dental needle, prick, injury ...

  7. Comparison of the Diagnostic Yield of EUS Needles for Liver Biopsy: Ex Vivo Study.

    Science.gov (United States)

    Lee, Woo Jung; Uradomo, Lance T; Zhang, Yang; Twaddell, William; Darwin, Peter

    2017-01-01

    EUS-guided liver biopsy is an emerging method of liver tissue acquisition which is safe and had been shown to produce excellent histological yield. There is limited data comparing the diagnostic yield of different FNA needles. We aimed to compare the diagnostic performance of four commercially available 19-gauge FNA needles. Four FNA needles and one percutaneous needle were used to perform liver biopsies on two human cadaveric livers: Cook Echotip Procore™, Olympus EZ Shot 2™, Boston Scientific Expect Slimline™, Covidien SharkCore™, and an 18-gauge percutaneous needle (TruCore™, Argon Medical Devices). Each needle obtained biopsies by three, six, and nine complete back-and-forth motions of the needle ("throw") with a fanning technique. The combined lengths of specimen fragments and the total number of complete portal tracts (CPT) were measured by a blinded pathologist. One-way analysis of variance (ANOVA) and Bonferroni correction were used for statistical analysis. A total of 52 liver biopsies were performed. The Covidien SharkCore needle had significantly greater number of CPT compared to other FNA needles. The number of "throws" did not impact the number of CPT significantly. There was no statistically significant difference in mean total specimen length between each FNA needle type. The Covidien SharkCore needle produced superior histological specimen by capturing more CPT, possibly due to its unique needle design.

  8. Effects of insertion speed and trocar stiffness on the accuracy of needle position for brachytherapy

    Energy Technology Data Exchange (ETDEWEB)

    McGill, Carl S.; Schwartz, Jonathon A.; Moore, Jason Z.; McLaughlin, Patrick W.; Shih, Albert J. [Biomedical Engineering Department, University of Michigan, Ann Arbor, Michigan 48109 (United States); Department of Mechanical and Nuclear Engineering, The Pennsylvania State University, State College, Pennsylvania 16802 (United States); Department of Radiation Oncology, University of Michigan, Ann Arbor, Michigan 48109 (United States); Biomedical Engineering Department, University of Michigan, Ann Arbor, Michigan 48109 and Mechanical Engineering Department, University of Michigan, Ann Arbor, Michigan 48109 (United States)

    2012-04-15

    Purpose: In prostate brachytherapy, accurate positioning of the needle tip to place radioactive seeds at its target site is critical for successful radiation treatment. During the procedure, needle deflection leads to seed misplacement and suboptimal radiation dose to cancerous cells. In practice, radiation oncologists commonly use high-speed hand needle insertion to minimize displacement of the prostate as well as the needle deflection. Effects of speed during needle insertion and stiffness of trocar (a solid rod inside the hollow cannula) on needle deflection are studied. Methods: Needle insertion experiments into phantom were performed using a 2{sup 2} factorial design (2 parameters at 2 levels), with each condition having replicates. Analysis of the deflection data included calculating the average, standard deviation, and analysis of variance (ANOVA) to find significant single and two-way interaction factors. Results: The stiffer tungsten carbide trocar is effective in reducing the average and standard deviation of needle deflection. The fast insertion speed together with the stiffer trocar generated the smallest average and standard deviation for needle deflection for almost all cases. Conclusions: The combination of stiff tungsten carbide trocar and fast needle insertion speed are important to decreasing needle deflection. The knowledge gained from this study can be used to improve the accuracy of needle insertion during brachytherapy procedures.

  9. The evidence does not speak for itself: The role of research evidence in shaping policy change for the implementation of publicly funded syringe exchange programs in three US cities.

    Science.gov (United States)

    Allen, Sean T; Ruiz, Monica S; O'Rourke, Allison

    2015-07-01

    A breadth of literature exists that explores the utilization of research evidence in policy change processes. From this work, a number of studies suggest research evidence is applied to change processes by policy change stakeholders primarily through instrumental, conceptual, and/or symbolic applications, or is not used at all. Despite the expansiveness of research on policy change processes, a deficit exists in understanding the role of research evidence during change processes related to the implementation of structural interventions for HIV prevention among injection drug users (IDU). This study examined the role of research evidence in policy change processes for the implementation of publicly funded syringe exchange services in three US cities: Baltimore, MD, Philadelphia, PA, and Washington, DC. In-depth qualitative interviews were conducted with key stakeholders (n=29) from each of the study cities. Stakeholders were asked about the historical, social, political, and scientific contexts in their city during the policy change process. Interviews were transcribed and analyzed for common themes pertaining to applications of research evidence. In Baltimore and Philadelphia, the typological approaches (instrumental and symbolic/conceptual, respectively) to the applications of research evidence used by harm reduction proponents contributed to the momentum for securing policy change for the implementation of syringe exchange services. Applications of research evidence were less successful in DC because policymakers had differing ideas about the implications of syringe exchange program implementation and because opponents of policy change used evidence incorrectly or not at all in policy change discussions. Typological applications of research evidence are useful for understanding policy change processes, but their efficacy falls short when sociopolitical factors complicate legislative processes. Advocates for harm reduction may benefit from understanding how to

  10. Programming

    International Nuclear Information System (INIS)

    Jackson, M.A.

    1982-01-01

    The programmer's task is often taken to be the construction of algorithms, expressed in hierarchical structures of procedures: this view underlies the majority of traditional programming languages, such as Fortran. A different view is appropriate to a wide class of problem, perhaps including some problems in High Energy Physics. The programmer's task is regarded as having three main stages: first, an explicit model is constructed of the reality with which the program is concerned; second, this model is elaborated to produce the required program outputs; third, the resulting program is transformed to run efficiently in the execution environment. The first two stages deal in network structures of sequential processes; only the third is concerned with procedure hierarchies. (orig.)

  11. Programming

    CERN Document Server

    Jackson, M A

    1982-01-01

    The programmer's task is often taken to be the construction of algorithms, expressed in hierarchical structures of procedures: this view underlies the majority of traditional programming languages, such as Fortran. A different view is appropriate to a wide class of problem, perhaps including some problems in High Energy Physics. The programmer's task is regarded as having three main stages: first, an explicit model is constructed of the reality with which the program is concerned; second, this model is elaborated to produce the required program outputs; third, the resulting program is transformed to run efficiently in the execution environment. The first two stages deal in network structures of sequential processes; only the third is concerned with procedure hierarchies.

  12. Ultrasound-guided core needle biopsy for breast cancer

    International Nuclear Information System (INIS)

    Naqvi, S.Q.H.; Solangi, R.A.; Memon, M.; Solangi, R.A.

    2008-01-01

    To evaluate the efficacy of ultrasound-guided core needle biopsy (US-CNB) as a preoperative diagnostic modality for breast cancer. Females with solid and/or intermediate breast lesions visualized on ultrasonography. Apart from clinical work-up, all the above mentioned patients underwent ultrasound-guided core needle biopsy and excisional biopsy of their breast lesions. The histopathological diagnosis on ultrasound-guided core needle biopsy was then compared with the findings of the excisional biopsy. Out of the total 93 cases, 47(50.5%) had benign lesions on ultrasound; US-CNB showed 24 as fibroadenomata, four with chronic non-specific mastitis, five chronic suppurative mastitis, one tuberculosis, four fat necrosis, two lactational adenoma and seven cases with benign ductal hyperplasia without atypia. Nine (9.7%) cases showed suspicious abnormality on ultrasound; US-CNB revealed five cases with atypical ductal hyperplasia, one ductal carcinoma in situ and three invasive ductal carcinoma. Thirty seven (39.8%) cases were highly suggestive of malignancy on ultrasound; US-CNB showed 34 as invasive ductal carcinoma, two invasive lobular and one medullary carcinoma. Excisional biopsy confirmed the diagnosis of ultrasound-guided core needle biopsy in all cases except four; one case of chronic suppurative mastitis was diagnosed as that of tuberculosis and three cases of atypial ductal hyperplasia as invasive ductal carcinoma. Hence there was no false positive case, but four (4.3%) false negative cases. The sensitivity of the US-CNB was thus 100% and specificity 91.1%. Ultrasound guided core needle biopsy is a satisfactory procedure for the histopathological diagnosis of breast lesions. Any unsatisfactory, suspicious or atypical change on US-CNB should be followed by an open biopsy. (author)

  13. Occurrence and knowledge about needle stick injury in nursing students

    International Nuclear Information System (INIS)

    Prasuna, J.; Sharma, R.

    2015-01-01

    Needle stick injury (NSI) became a major issue and most of the research focuses on Nurses, Doctors and other health care workers, but at the same time nursing students in clinical duties are at high risk. Studies are available which examined NSI only in Medical students and health care workers. The present study is aimed to measure the occurrence of needle stick injury along with post exposure measures and evaluation of the knowledge regarding needle stick injury among nursing student. Methods: A cross-sectional study was conducted in North-East India in 2013. The study participants comprised of 83 nursing students studying in 4th year B.Sc. (N) and 3rd year General Nursing and Midwifery (GNM). Students were questioned regarding their occurrence to Needle Stick Injury throughout their clinical training and measures taken following the exposure. They were also asked to complete the Knowledge questionnaire on NSI. Results: The study among 83 nursing students included 43 (51.81%) GNM 3rd year and 40 (48.19%) B.Sc. Nursing Students. Out of a total 83 students, 75 (90.36%) were females. The occurrence of NSI during their course was reported by 33 (39.76%) participants. The maximum NSI occurred during first year of course (57.57%). It was found that 18 (54.54%) of NSIs were not reported. Among those exposed, only 5 (15.15%) students had undergone blood investigation and very few students took post exposure measures. It was found that, only 23 (69.69%) students were immunized against Hepatitis B before NSI. Conclusion: The present study indicated a high incidence of needle stick injuries among nursing students with more under-reported cases and subjects were not aware of post exposure measures. It is essential to deal above problems by regular training on real-life procedure at the entry level and reporting system should be more user-friendly platform. (author)

  14. Initial experience with new dedicated needles for laparoscopic ultrasound-guided fine-needle aspiration and histological biopsies

    DEFF Research Database (Denmark)

    Mortensen, M B; Durup, J; Pless, T

    2001-01-01

    BACKGROUND AND STUDY AIMS: Laparoscopic ultrasonography (LUS) is an important imaging modality during laparoscopic staging of intra-abdominal malignancies, but LUS-assisted biopsy is often difficult or impossible. We report a newly developed inbuilt biopsy system for direct LUS-guided fine-needle...

  15. Needle tract implantation after fine needle aspiration biopsy (FNAB) of transitional cell carcinoma of the urinary bladder and adenocarcinoma of the lung.

    Science.gov (United States)

    Vignoli, M; Rossi, F; Chierici, C; Terragni, R; De Lorenzi, D; Stanga, M; Olivero, D

    2007-07-01

    This paper reports three clinical cases of needle tract implantation of neoplastic cells on the abdominal and thoracic wall after ultrasound (US) fine needle aspiration biopsy (FNAB). Primary tumors were two transitional cell carcinomas of the urinary bladder (2 dogs) and one pulmonary adenocarcinoma (1 cat). All three masses grew up along the needle tract. To our knowledge, the seeding of pulmonary adenocarcinoma cells after FNAB on the thoracic wall has never been reported in veterinary medicine.

  16. Clogging in staked-in needle pre-filled syringes (SIN-PFS): Influence of water vapor transmission through the needle shield.

    Science.gov (United States)

    De Bardi, M; Müller, R; Grünzweig, C; Mannes, D; Rigollet, M; Bamberg, F; Jung, T A; Yang, K

    2018-02-12

    Staked-in needle pre-fillable syringes (SIN-PFS) are a convenient delivery system widely established in the growing pharmaceutical market. Under specific storage conditions, the needle of PFS containing high concentration drug product (DP) solution is prone to clogging, which prevents administration of the liquid. The purpose of this study is to clarify the clogging phenomenon of SIN-PFS and to elucidate the role of water vapor transmission via the needle shield. The presence of liquid within needles is a prerequisite condition for clogging and was investigated non-invasively by neutron imaging (NI) to confirm that liquid can migrate into the needle under certain processing conditions. The water vapor transmission rate (WVTR) of different needle shields was measured and the impact of temperature and relative humidity (rH) on the WVTR was investigated on sheets with the same composition as used in commercial needle shields. Our study clearly showed that the partial vapor pressure difference (ΔPP) across the needle shield is the dominant driving factor for water vapor transmission. A linear correlation between ΔPP and WVTR was found and a model to predict the water vapor transmission for PFS under specific storage conditions was developed. The impact of the WVTR on needle clogging was confirmed by clogging tests performed on SIN-PFS stored under different conditions. Thereby, we clearly show that high water loss induced by higher WVTR can be correlated to an increased occurrence of needle clogging. In conclusion, the WVTR of the needle shield plays a key role in needle clogging and the established WVTR model can be employed to assess the clogging risk for product development. Copyright © 2018. Published by Elsevier B.V.

  17. Randomized clinical trial to assess pain and bruising in medicines administered by means of subcutaneous and intramuscular needle injection: Is it necessary to have needles changed?

    OpenAIRE

    Lamblet, Luiz Carlos Ribeiro; Meira, Edilson Sant'Anna; Torres, Silvana; Ferreira, Barbara Carvalho; Martucchi, Sergio Dias

    2011-01-01

    This clinical trial aimed at comparing the intensity of pain and bruising by subcutaneous and intramuscular injections using and retractable fixed syringes and needles and syringes with no needles combined, at a public hospital in Sao Paulo, for six months. We evaluated the perception of pain in case of intramuscular (n=1000) and subcutaneous injections (n=240). In subcutaneous application, bruise formation was also verified. Pain and bruising scores were higher in the group with no needles c...

  18. Evaluation of 8.0-cm needle at the fourth anterior axillary line for needle chest decompression of tension pneumothorax.

    Science.gov (United States)

    Chang, Samuel J; Ross, Samuel Wade; Kiefer, David J; Anderson, William E; Rogers, Amelia T; Sing, Ronald F; Callaway, David W

    2014-04-01

    Five-centimeter needles at the second intercostal space midclavicular line (2MCL) have high failure rates for decompression of tension pneumothorax. This study evaluates 8-cm needles directed at the fourth intercostal space anterior axillary line (4AAL). Retrospective radiographic analysis of 100 consecutive trauma patients 18 years or older from January to September 2011. Measurements of chest wall thickness (CWT) and depth to vital structure (DVS) were obtained at 2MCL and 4AAL. 4AAL measurements were taken based on two angles: closest vital structure and perpendicular to the chest wall. Primary outcome measures were radiographic decompression (RD) (defined as CWT RNI) (DVS > 80 mm) of 8-cm needles at 4AAL. Secondary outcome measures are effect of angle of entry on RNI at 4AAL, RD and RNI of 8-cm needles at 2MCL, and comparison of 5-cm needles with 8-cm needles at both locations. Eighty-four percent of the patients were male, with mean Injury Severity Score (ISS) of 17.7 (range, 1.0-66.0) and body mass index of 26.8 (16.5-48.4). Mean CWT at 4AAL ranged from 37.6 mm to 39.9 mm, significantly thinner than mean CWT at 2MCL (43.3-46.7 mm). Eight-centimeter needle RD was more than 96% at both 4AAL and 2MCL. Five-centimeter RD ranged from 66% to 81% at all sites. Mean DVS at 4AAL ranged from 91.8 mm to 128.0 mm. RNI at all sites was more than 91% except at left 4AAL, when taken to the closest vital structure (mean DVS, 91.8 mm), with 68% RNI. Perpendicular entry increased DVS to 109.4 mm and subsequent RNI to 91%. Five-centimeter RNI at all sites was more than 99%. CWT at 4AAL is significantly thinner than 2MCL. Based on radiographic measurements, 8-cm catheters have a higher chance of pleural decompression when compared with 5-cm catheters. Steeper angle of entry at 4AAL improves 8-cm noninjury rates to more than 91%. Therapeutic/care management study, level IV.

  19. Numerical Modelling of Mutual Effect among Nearby Needles in a Multi-Needle Configuration of an Atmospheric Air Dielectric Barrier Discharge

    Directory of Open Access Journals (Sweden)

    Xiaoxing Zhang

    2012-05-01

    Full Text Available A numerical study has been conducted to understand the mutual effect among nearby needles in a multi-needle electrode dielectric barrier discharge. In the present paper, a fluid-hydrodynamic model is adopted. In this model, the mutual effect among nearby needles in a multi-needle configuration of an atmospheric air dielectric barrier discharge are investigated using a fluid-hydrodynamic model including the continuity equations for electrons and positive and negative ions coupled with Poisson’s equation. The electric fields at the streamer head of the middle needle (MN and the side needles (SNs in a three-needle model decreased under the influence of the mutual effects of nearby needles compared with that in the single-needle model. In addition, from the same comparison, the average propagation velocities of the streamers from MN and SNs, the electron average energy profile of MN and SNs (including those in the streamer channel, at the streamer head, and in the unbridged gap, and the electron densities at the streamer head of the MN and SNs also decreased. The results obtained in the current paper agreed well with the experimental and simulation results in the literature.

  20. Effects of irrigation, fertilization and drought on the occurrence of Lophodermium piceae in Picea abies needles

    Energy Technology Data Exchange (ETDEWEB)

    Lehtijaervi, Asko; Barklund, Pia [Swedish Univ. of Agricultural Sciences, Uppsala (Sweden). Dept. of Forest Mycology and Pathology

    1999-08-01

    Effects of irrigation, drought and fertilization on the frequency of the fungal endophyte Lophodermium piceae in green needles was assessed in a 30-year-old experimental stand of Picea abies in southern Sweden. Frequencies of needles with L. piceae were lower in irrigation and ammonium sulphate fertilization treatments than in the control. Drought treatment frequencies were similar to the control. Needles were susceptible to colonization for at least 3 years; colonization increased with needle age. The results indicate that the increased availability of water to the root system as well as ammonium sulphate fertilization indirectly delays colonization of needles by L. piceae 21 refs, 3 figs, 2 tabs

  1. Inserting needles into the body: a meta-analysis of brain activity associated with acupuncture needle stimulation.

    Science.gov (United States)

    Chae, Younbyoung; Chang, Dong-Seon; Lee, Soon-Ho; Jung, Won-Mo; Lee, In-Seon; Jackson, Stephen; Kong, Jian; Lee, Hyangsook; Park, Hi-Joon; Lee, Hyejung; Wallraven, Christian

    2013-03-01

    Acupuncture is a therapeutic treatment that is defined as the insertion of needles into the body at specific points (ie, acupoints). Advances in functional neuroimaging have made it possible to study brain responses to acupuncture; however, previous studies have mainly concentrated on acupoint specificity. We wanted to focus on the functional brain responses that occur because of needle insertion into the body. An activation likelihood estimation meta-analysis was carried out to investigate common characteristics of brain responses to acupuncture needle stimulation compared to tactile stimulation. A total of 28 functional magnetic resonance imaging studies, which consisted of 51 acupuncture and 10 tactile stimulation experiments, were selected for the meta-analysis. Following acupuncture needle stimulation, activation in the sensorimotor cortical network, including the insula, thalamus, anterior cingulate cortex, and primary and secondary somatosensory cortices, and deactivation in the limbic-paralimbic neocortical network, including the medial prefrontal cortex, caudate, amygdala, posterior cingulate cortex, and parahippocampus, were detected and assessed. Following control tactile stimulation, weaker patterns of brain responses were detected in areas similar to those stated above. The activation and deactivation patterns following acupuncture stimulation suggest that the hemodynamic responses in the brain simultaneously reflect the sensory, cognitive, and affective dimensions of pain. This article facilitates a better understanding of acupuncture needle stimulation and its effects on specific activity changes in different brain regions as well as its relationship to the multiple dimensions of pain. Future studies can build on this meta-analysis and will help to elucidate the clinically relevant therapeutic effects of acupuncture. Copyright © 2013 American Pain Society. All rights reserved.

  2. Eficiencia en la prescripción de medicamentos: impacto de un programa de intercambio terapéutico The efficiency of drug prescription: impact of a therapeutic exchange program

    Directory of Open Access Journals (Sweden)

    Isabel Rosich

    2012-02-01

    Full Text Available Objetivo: Evaluar el impacto de un programa de intercambio terapéutico a omeprazol de los inhibidores de la bomba de protones (IBP. Método: Ensayo comunitario que compara el impacto de un programa de intercambio terapéutico en los equipos de atención primaria de una comarca respecto a la no aplicación en una comarca control. Se incluyó a los pacientes con prescripción de un IBP entre mayo de 2008 y junio de 2009. La intervención consistió en sesiones educativas y facilitar a cada médico (n=68 los pacientes con un IBP que pudiera cambiarse a omeprazol. Se obtuvo información de la historia clínica (IBP prescrito, equipo de atención primaria y de la aplicación de farmacia (coste de la dosis diaria definida de los IBP. A partir del riesgo relativo (RR se comparó el porcentaje de intercambio terapéutico en cada comarca antes y después de la intervención. También se calculó el porcentaje de omeprazol al final de cada periodo de estudio y los cambios en los costes en IBP. Resultados: Hubo más intercambios terapéuticos en el grupo de intervención (RR: 4,2; intervalo de confianza del 95% [IC95%]:3,1-5,8 respecto al control (RR: 1,8; IC95%:1,2-2,6. En el grupo de intervención, el porcentaje de pacientes con omeprazol pasó del 86,2% al 89,3%, y en el control del 84,3% al 84,7%. El coste del grupo IBP disminuyó un 7,6% en el grupo de intervención y aumentó un 2,0% en el control. Conclusiones: El programa de intercambio terapéutico se ha mostrado efectivo. Se trata de una intervención sencilla, capaz de modificar las prescripciones y reducir sus costes.Objective: To assess the impact of substituting proton pump inhibitors (PPI for omeprazole. Method: We performed a community trial of the impact of a therapeutic exchange program in the primary care teams of a region compared with non-implementation in a control region. The study included patients prescribed a PPI between May 2008 and June 2009. The intervention consisted of

  3. COMPARISON OF DRY NEEDLING VS. SHAM ON THE PERFORMANCE OF VERTICAL JUMP

    Science.gov (United States)

    Nelson, Russell; Beamer, Lisa

    2017-01-01

    Introduction Dry needling has been reported to decrease pain in subjects having myofascial trigger points, as well as pain in muscle and connective tissue. Objective The purpose of the study was to compare the effects on the ability to perform a two-legged vertical jump between a group who received one bout of dry needling and a group who received one bout of a sham treatment. Methods Thirty-five healthy students (19 males, 16 females) were recruited to participate in this study (mean age 22.7+/- 2.4 years). The subjects were randomly divided into two groups- dry needling (n=18) vs sham (n=17). The dry needling group received needling to four sites on bilateral gastrocnemius muscles; two at the medial head and two at the lateral head. The sham group had the four areas of the gastrocnemius muscle pressed with the tube housing the needle, but the needle was never inserted into the skin. Two-legged vertical jump was measured with chalk marks on the wall before and after the dry needling and sham treatments. Results Analysis with a t-test indicated that the dry needling group significantly increased vertical jump height 1.2 inches over the sham group. Conclusion One bout of dry needling showed an immediate effect at significantly increasing vertical jump height in healthy, young adults. Future research is needed to determine if dry needling has any long-term effects. Level of Evidence 2b PMID:29181252

  4. Autonomous real-time interventional scan plane control with a 3-D shape-sensing needle.

    Science.gov (United States)

    Elayaperumal, Santhi; Plata, Juan Camilo; Holbrook, Andrew B; Park, Yong-Lae; Pauly, Kim Butts; Daniel, Bruce L; Cutkosky, Mark R

    2014-11-01

    This study demonstrates real-time scan plane control dependent on three-dimensional needle bending, as measured from magnetic resonance imaging (MRI)-compatible optical strain sensors. A biopsy needle with embedded fiber Bragg grating (FBG) sensors to measure surface strains is used to estimate its full 3-D shape and control the imaging plane of an MR scanner in real-time, based on the needle's estimated profile. The needle and scanner coordinate frames are registered to each other via miniature radio-frequency (RF) tracking coils, and the scan planes autonomously track the needle as it is deflected, keeping its tip in view. A 3-D needle annotation is superimposed over MR-images presented in a 3-D environment with the scanner's frame of reference. Scan planes calculated based on the FBG sensors successfully follow the tip of the needle. Experiments using the FBG sensors and RF coils to track the needle shape and location in real-time had an average root mean square error of 4.2 mm when comparing the estimated shape to the needle profile as seen in high resolution MR images. This positional variance is less than the image artifact caused by the needle in high resolution SPGR (spoiled gradient recalled) images. Optical fiber strain sensors can estimate a needle's profile in real-time and be used for MRI scan plane control to potentially enable faster and more accurate physician response.

  5. Quantification of Tissue Trauma following Insulin Pen Needle Insertions in Skin

    DEFF Research Database (Denmark)

    Jensen, Casper Bo; Larsen, Rasmus; Vestergaard, Jacob Schack

    Objective: Within the field of pen needle development, most research on needle design revolves around mechanical tensile testing and patient statements. Only little has been published on the actual biological skin response to needle insertions. The objective of this study was to develop a computa......Objective: Within the field of pen needle development, most research on needle design revolves around mechanical tensile testing and patient statements. Only little has been published on the actual biological skin response to needle insertions. The objective of this study was to develop...... a computational method to quantify tissue trauma based on skin bleeding and immune response. Method: Two common sized pen needles of 28G (0.36mm) and 32G (0.23mm) were inserted into skin of sedated LYD pigs prior to termination. Four pigs were included and a total of 32 randomized needle insertions were conducted...... diameter. Conclusion: A computational and quantitative method has been developed to assess tissue trauma following insulin pen needle insertions. Application of the method is tested by conduction of a needle diameter study. The obtained quantitative measures of tissue trauma correlate positively to needle...

  6. COMPARISON OF DRY NEEDLING VS. SHAM ON THE PERFORMANCE OF VERTICAL JUMP.

    Science.gov (United States)

    Bandy, William D; Nelson, Russell; Beamer, Lisa

    2017-10-01

    Dry needling has been reported to decrease pain in subjects having myofascial trigger points, as well as pain in muscle and connective tissue. The purpose of the study was to compare the effects on the ability to perform a two-legged vertical jump between a group who received one bout of dry needling and a group who received one bout of a sham treatment. Thirty-five healthy students (19 males, 16 females) were recruited to participate in this study (mean age 22.7+/- 2.4 years). The subjects were randomly divided into two groups- dry needling (n=18) vs sham (n=17). The dry needling group received needling to four sites on bilateral gastrocnemius muscles; two at the medial head and two at the lateral head. The sham group had the four areas of the gastrocnemius muscle pressed with the tube housing the needle, but the needle was never inserted into the skin. Two-legged vertical jump was measured with chalk marks on the wall before and after the dry needling and sham treatments. Analysis with a t-test indicated that the dry needling group significantly increased vertical jump height 1.2 inches over the sham group. One bout of dry needling showed an immediate effect at significantly increasing vertical jump height in healthy, young adults. Future research is needed to determine if dry needling has any long-term effects. 2b.

  7. A Prospective Comparison of EUS-Guided FNA Using 25-Gauge and 22-Gauge Needles

    Science.gov (United States)

    Imazu, Hiroo; Uchiyama, Yujiro; Kakutani, Hiroshi; Ikeda, kei-ichi; Sumiyama, Kazuki; Kaise, Mitsuru; Omar, Salem; Ang, Tiing Leong; Tajiri, Hisao

    2009-01-01

    Background and Aims. There are limited data on the differences in diagnostic yield between 25-gauge and 22-gauge EUS-FNA needles. This prospective study compared the difference in diagnostic yield between a 22-gauge and a 25-gauge needle when performing EUS-FNA. Methods. Forty-three patients with intraluminal or extraluminal mass lesions and/or lymphadenopathy were enrolled prospectively. EUS-FNA was performed for each mass lesion using both 25- and 22-gauge needles. The differences in accuracy rate, scoring of needle visibility, ease of puncture and quantity of obtained specimen were evaluated. Results. The overall accuracy of 22- and 25-gauge needle was similar at 81% and 76% respectively (N.S). Likewise the visibility scores of both needles were also similar. Overall the quantity of specimen obtained higher with the 22-gauge needle (score: 1.64 vs. P < .001). However the 25-gauge needle was significantly superior to the 22-gauge needle in terms of ease of puncture (score: 1.9 vs. 1.29, P < .001) and in the quantity of specimen in the context of pancreatic mass EUS-FNA (score: 1.8 vs. 1.58, P < .05). Conclusion. The 22-gauge and 25-gauge needles have similar overall diagnostic yield. The 25-gauge needle appeared superior in the subset of patients with hard lesions and pancreatic masses. PMID:19997511

  8. A Prospective Comparison of EUS-Guided FNA Using 25-Gauge and 22-Gauge Needles

    Directory of Open Access Journals (Sweden)

    Hiroo Imazu

    2009-01-01

    Full Text Available Background and Aims. There are limited data on the differences in diagnostic yield between 25-gauge and 22-gauge EUS-FNA needles. This prospective study compared the difference in diagnostic yield between a 22-gauge and a 25-gauge needle when performing EUS-FNA. Methods. Forty-three patients with intraluminal or extraluminal mass lesions and/or lymphadenopathy were enrolled prospectively. EUS-FNA was performed for each mass lesion using both 25- and 22-gauge needles. The differences in accuracy rate, scoring of needle visibility, ease of puncture and quantity of obtained specimen were evaluated. Results. The overall accuracy of 22- and 25-gauge needle was similar at 81% and 76% respectively (N.S. Likewise the visibility scores of both needles were also similar. Overall the quantity of specimen obtained higher with the 22-gauge needle (score: 1.64 vs. P<.001. However the 25-gauge needle was significantly superior to the 22-gauge needle in terms of ease of puncture (score: 1.9 vs. 1.29, P<.001 and in the quantity of specimen in the context of pancreatic mass EUS-FNA (score: 1.8 vs. 1.58, P<.05. Conclusion. The 22-gauge and 25-gauge needles have similar overall diagnostic yield. The 25-gauge needle appeared superior in the subset of patients with hard lesions and pancreatic masses.

  9. Are needle-free injections a useful alternative for growth hormone therapy in children? Safety and pharmacokinetics of growth hormone delivered by a new needle-free injection device compared to a fine gauge needle.

    NARCIS (Netherlands)

    Dorr, H.G.; Zabransky, S.; Keller, E.; Otten, B.J.; Partsch, C.J.; Nyman, L.; Gillespie, B.K.; Lester, N.R.; Wilson, A.M.; Hyren, C.; Kuijck, M.A. van; Schuld, P.; Schoenfeld, S.L.

    2003-01-01

    The clinical safety, use and pharmacokinetics of a new needle-free device for delivery of growth hormone (GH) were compared with those of conventional needle injection devices. In an open-label, randomized, 4-period crossover study, 18 healthy adults received single subcutaneous injections of

  10. High-Field MRI-Compatible Needle Placement Robot for Prostate Interventions

    Science.gov (United States)

    SU, Hao; CAMILO, Alex; COLE, Gregory A.; HATA, Nobuhiko; TEMPANY, Clare M.; FISCHER, Gregory S.

    2014-01-01

    This paper presents the design of a magnetic resonance imaging (MRI) compatible needle placement system actuated by piezoelectric actuators for prostate brachytherapy and biopsy. An MRI-compatible modular 3 degree-of-freedom (DOF) needle driver module coupled with a 3-DOF x-y-z stage is proposed as a slave robot to precisely deliver radioactive brachytherapy seeds under interactive MRI guidance. The needle driver module provides for needle cannula rotation, needle insertion and cannula retraction to enable the brachytherapy procedure with the preloaded needles. The device mimics the manual physician gesture by two point grasping (hub and base) and provides direct force measurement of needle insertion force by fiber optic force sensors. The fabricated prototype is presented and an experiment with phantom trials in 3T MRI is analyzed to demonstrate the system compatibility. PMID:21335868

  11. Laser Processed Heat Exchangers

    Data.gov (United States)

    National Aeronautics and Space Administration — The considerable mass of Heat Exchangers (HXs) and coldplates on spacecraft as well as the problematic coatings of the Condensing Heat Exchanger (CHX) are among the...

  12. Isotopically exchangeable phosphorus

    International Nuclear Information System (INIS)

    Barbaro, N.O.

    1984-01-01

    A critique revision of isotope dilution is presented. The concepts and use of exchangeable phosphorus, the phosphate adsorption, the kinetics of isotopic exchange and the equilibrium time in soils are discussed. (M.A.C.) [pt

  13. Physical Therapy Treatment Of Chronic Neck Pain A Discussion And Case Study: Using Dry Needling And Battlefield Acupuncture.

    Science.gov (United States)

    Guthrie, Richard M; Chorba, Rita

    2016-01-01

    Chronic mechanical neck pain can have a complex clinical presentation and is often difficult to treat. This case study illustrates a successful physical therapy treatment approach using dry needling and auricular acupuncture techniques. A 51-year-old active-duty, male US Marine was treated by a physical therapist in a direct-access military clinic for chronic neck pain poorly responsive to previous physical therapy, pharmacologic, and surgical interventions. Needling techniques were combined with standard physical therapy interventions to address the comprehensive needs of the patient. Within five treatments, the patient reported reduced pain levels from 8-9/10 to 0-2/10, improved sleep quality, and increased function with daily activities. Over several months, the patient reduced multiple medication use by greater than 85%. The effects of treatment were lasting, and the patient accomplished a successful transition to an independent maintenance program. Needling techniques have the potential to expedite favorable physical therapy outcomes for active-duty service members suffering from chronic mechanical and degenerative neck pain. The dramatic improvements observed in this case warrant additional exploration of treatment efficacy and delineation of best practices in the delivery of these techniques. 2016.

  14. Structure and photoluminescence properties of Ag-coated ZnO nano-needles

    International Nuclear Information System (INIS)

    Li Xiaozhu; Wang Yongqian

    2011-01-01

    Highlights: → ZnO nano-needles were synthesized by thermal oxidation. → Their surfaces were coated with Ag by pulse electro-deposition technique. → The uncoated and coated ZnO nano-needles were characterized. → The results showed that the prepared ZnO nano-needles have been coated with Ag successfully. → The photoluminescence spectrums of ZnO nano-needles with Ag-coated and uncoated were analyzed, finding that the Ag-coated ZnO nano-needles can increase the absorption of UV light. - Abstract: A large number of zinc oxide (ZnO) nano-needles were synthesized by thermal oxidation of pure zinc. The surfaces of ZnO nano-needles were coated with a layer of Ag by pulse electro-deposition technique. The uncoated and coated ZnO nano-needles were characterized by using the X-ray diffraction and the scanning electron microscope (SEM). The results showed that the uncoated samples were close-packed hexagonal structure, which showed needle-like morphology. Their average diameter is about 40 nm, lengths up to 5 μm. At the same time we observed that the prepared ZnO nano-needles have been coated with Ag successfully. The photoluminescence spectrums of ZnO nano-needles with Ag-coated and uncoated were analyzed, finding that the uncoated ZnO nano-needles have two fluorescence peaks at 388 nm and 470.8 nm, respectively, the relative intensity of 143.4 and 93.61; and the Ag-coated ZnO nano-needles showed a pair of strong peaks at 387.4 nm and 405.2 nm, the relative intensity of 1366 and 1305, respectively, indicating that the Ag-coated ZnO nano-needles can increase the absorption of UV light.

  15. Sample Exchange Evaluation (SEE) Report - Phase II

    International Nuclear Information System (INIS)

    Winters, W.I.

    1994-01-01

    This report describes the results from Phase II of the Sample Exchange Evaluation (SEE) Program, a joint effort to compare analytical laboratory performance on samples from the Hanford Site's high-level waste tanks. In Phase II, the program has been expanded to include inorganic constituents in addition to radionuclides. Results from Phase II that exceeded 20% relative percent difference criteria are identified

  16. Arizona Migrant Child Education Teacher Exchange: Colorado.

    Science.gov (United States)

    Maynes, J. O., Jr.; Brink, Donald

    The Office of Migrant Child Education of the Arizona Department of Education participated in the annual Teacher Exchange Program by visiting Colorado, April 14-18, 1980. Sixteen teachers and/or program coordinators (selected by the project administrator) prepresented 13 Arizona Migrant Child Education Projects and traveled to Colorado under the…

  17. Uranium solubility and solubility controls in selected Needle's Eye groundwaters

    International Nuclear Information System (INIS)

    Falck, W.E.; Hooker, P.J.

    1992-01-01

    The British Geological Survey (BGS) has been co-ordinating a research programme centred on the Needle's Eye natural analogue site in Dumfries and Galloway District, southwest Scotland. This study of a natural radioactive geochemical system has been carried out with the aim of improving confidence in using geochemical and predictive models of radionuclide (uranium) migration in the geosphere. The Needle's Eye site is located on the Solway Coat within the Southwick Coast Reserve of the Scottish Wildlife Trust who gave permission to sample for soils, sediments and waters for analysis. This report is one of a series and covers the period from June 1989 to June 1990. It presents the results of applying the PHREEQE code to the hydrochemistry of the site using the CHEMVAL thermodynamic database. (author)

  18. Needles of Pinus halepensis as biomonitors of bioaerosol emissions.

    Directory of Open Access Journals (Sweden)

    Amandine Galès

    Full Text Available We propose using the surface of pine trees needles to biomonitor the bioaerosol emissions at a composting plant. Measurements were based on 16S rRNA gene copy numbers of Saccharopolyspora rectivirgula, a bioindicator of composting plant emissions. A sampling plan was established based on 29 samples around the emission source. The abundance of 16S rRNA gene copies of S. rectivirgula per gram of Pinus halepensis needles varied from 104 to 102 as a function of the distance. The signal reached the background level at distances around the composting plant ranging from 2 km to more than 5.4 km, depending on the local topography and average wind directions. From these values, the impacted area around the source of bioaerosols was mapped.

  19. Silica needle template fabrication of metal hollow microneedle arrays

    International Nuclear Information System (INIS)

    Zhu, M W; Li, H W; Chen, X L; Tang, Y F; Lu, M H; Chen, Y F

    2009-01-01

    Drug delivery through hollow microneedle (HMN) arrays has now been recognized as one of the most promising techniques because it minimizes the shortcomings of the traditional drug delivery methods and has many exciting advantages—pain free and tunable release rates, for example. However, this drug delivery method has been hindered greatly from mass clinical application because of the high fabrication cost of HMN arrays. Hence, we developed a simple and cost-effective procedure using silica needles as templates to massively fabricate HMN arrays by using popular materials and industrially applicable processes of micro- imprint, hot embossing, electroplating and polishing. Metal HMN arrays with high quality are prepared with great flexibility with tunable parameters of area, length of needle, size of hollow and array dimension. This efficient and cost-effective fabrication method can also be applied to other applications after minor alterations, such as preparation of optic, acoustic and solar harvesting materials and devices

  20. Silica needle template fabrication of metal hollow microneedle arrays

    Science.gov (United States)

    Zhu, M. W.; Li, H. W.; Chen, X. L.; Tang, Y. F.; Lu, M. H.; Chen, Y. F.

    2009-11-01

    Drug delivery through hollow microneedle (HMN) arrays has now been recognized as one of the most promising techniques because it minimizes the shortcomings of the traditional drug delivery methods and has many exciting advantages—pain free and tunable release rates, for example. However, this drug delivery method has been hindered greatly from mass clinical application because of the high fabrication cost of HMN arrays. Hence, we developed a simple and cost-effective procedure using silica needles as templates to massively fabricate HMN arrays by using popular materials and industrially applicable processes of micro- imprint, hot embossing, electroplating and polishing. Metal HMN arrays with high quality are prepared with great flexibility with tunable parameters of area, length of needle, size of hollow and array dimension. This efficient and cost-effective fabrication method can also be applied to other applications after minor alterations, such as preparation of optic, acoustic and solar harvesting materials and devices.

  1. EUS-Guided Needle-Based Confocal Laser Endomicroscopy

    DEFF Research Database (Denmark)

    Bhutani, Manoop S; Koduru, Pramoda; Joshi, Virendra

    2015-01-01

    the gut, providing further diagnostic and staging information. Confocal laser endomicroscopy (CLE) is a novel endoscopic method that enables imaging at a subcellular level of resolution during endoscopy, allowing up to 1000-fold magnification of tissue and providing an optical biopsy. A new procedure...... that has been developed in the past few years is needle-based confocal laser endomicroscopy (nCLE), which involves a mini-CLE probe that can be passed through a 1 9-gauge needle during EUS-FNA. This enables the real-time visualization of tissue at a microscopic level, with the potential to further improve....... The aim of this article is to review the role of EUS-guided nCLE in modern endoscopy and its implications in molecular imaging....

  2. Applicability of the PROSPECT model for Norway spruce needles

    Czech Academy of Sciences Publication Activity Database

    Malenovský, Zbyněk; Albrechtová, J.; Lhotáková, Z.; Zurita-Milla, R.; Clevers, J.G.P.W.; Schaepman, M.E.; Cudlín, Pavel

    2006-01-01

    Roč. 27, 23-24 (2006), s. 5315-5340 ISSN 0143-1161 R&D Projects: GA MŠk 1K04121 Institutional research plan: CEZ:AV0Z60870520 Keywords : chlorophyll content estimation * canopy reflectance models * radiative-transfer models * remote-sensing data * leaf-area index * optical-properties * conifer needles * forest * vegetation * inversion Subject RIV: GK - Forest ry Impact factor: 0.980, year: 2006

  3. NEEDLE REVISION WITH MITOMYCIN-C IN ENCAPSULATED BLEBS

    Directory of Open Access Journals (Sweden)

    R Zarei

    2008-08-01

    Full Text Available "nThe most common cause of failure during the first trimester after trabeculectomy is encapsulated bleb and needling bleb revision is a less invasive method in the management of refractory cases. The purpose of this study is to determine the efficacy and safety of mitomycin-C (MMC augmented bleb revision of failed filtration surgery. This study is a before-after (paired observation. 33 patients with failed trabeculectomy because of bleb encapsulation, whose intraocular pressure (IOP was not reduced under 21 mmHg despite of medications and digital massage , underwent needling bleb revision and subconjunctival injection of 0.1 ml MMC (0.4 mg/ml.The mean follow-up time was 9.24 ± 5.27 months (1-20 months. Statistical analysis of the data included the paired two-tailed Student's t test for preoperative and postoperative IOP and number of medications. 36 needling procedures (mean, 1.09 ± 0.21 revisions per eye were performed on 33 eyes. Patients were between 10-80 years old (mean, 45.67 ± 22.41 years and mean follow-up was 9.24 ± 5.27 months. IOP decreased from 29.06 ± 5.03 mmHg to 18.21 ± 6.76 mmHg at last follow-up (P= 0.000. Antiglaucoma medications decreased from 2.18 ± 0.58 to 1.36 ± 0.29 at last follow-up (P= 0.000.Overall, 6 (18.2% of 33 cases achieved a complete success and 20 (60.6% of cases achieved a qualified success. The complications of this procedure were subconjunctival hemorrhage (17 cases, hyphema (5 cases and conjunctival button hole (2 cases. Needling bleb revision with mitomycin-C appears to be an effective and relatively safe way to revive failed filtration surgery.

  4. Sewing needles in the brain: infanticide attempts or accidental insertion?

    Science.gov (United States)

    Sturiale, Carmelo Lucio; Massimi, Luca; Mangiola, Annunziato; Pompucci, Angelo; Roselli, Romeo; Anile, Carmelo

    2010-10-01

    Placing of sewing needles in the brain through the anterior fontanelle was first described in Germany in 1914. Forty cases have been reported in the scientific literature; most of them were identified in Turkey and Iran, with only a few cases in the Far East, North and Eastern Europe, and the United States. The only case observed in Italy was recorded in 1987. In nonmedical literature, this practice was frequently described in Persian novels, and it has been thought that this ritual could have been diffused with the Persian Empire domination over the centuries. We report on a new Italian case of an 82-year-old woman admitted for progressive right hemiparesis and gait disturbance. Brain computed tomography scan showed a left frontoparietal chronic subdural haematoma and, surprisingly, three 4-cm-long sewing needles inserted through the region of the anterior fontanelle. The patient and her friends and family did not remember any event justifying their presence. Subdural collection was evacuated by craniotomic approach, and the sewing needles were left in place and followed up. The rare cases of intracranial needling reported in the literature may represent only the tip of the iceberg. The phenomenon is usually reported as an incidental finding in asymptomatic adults, whereas many babies could not have been diagnosed because they died. The therapy remains controversial, although many authors suggest only follow-up for asymptomatic patients. In this article, all the pertinent literature is reviewed and the most important clinical aspects are discussed, along with a historical assessment of the problem.

  5. Deactivation of Escherichia coli by the plasma needle

    Energy Technology Data Exchange (ETDEWEB)

    Sladek, R E J; Stoffels, E [Department of Biomedical Engineering, Eindhoven University of Technology, PO Box 513, 5600 MB Eindhoven (Netherlands)

    2005-06-07

    In this paper we present a parameter study on deactivation of Escherichia coli (E. coli) by means of a non-thermal plasma (plasma needle). The plasma needle is a small-sized (1 mm) atmospheric glow sustained by radio-frequency excitation. This plasma will be used to disinfect heat-sensitive objects; one of the intended applications is in vivo deactivation of dental bacteria: destruction of plaque and treatment of caries. We use E. coli films plated on agar dishes as a model system to optimize the conditions for bacterial destruction. Plasma power, treatment time and needle-to-sample distance are varied. Plasma treatment of E. coli films results in formation of a bacteria-free void with a size up to 12 mm. 10{sup 4}-10{sup 5} colony forming units are already destroyed after 10 s of treatment. Prolongation of treatment time and usage of high powers do not significantly improve the destruction efficiency: short exposure at low plasma power is sufficient. Furthermore, we study the effects of temperature increase on the survival of E. coli and compare it with thermal effects of the plasma. The population of E. coli heated in a warm water bath starts to decrease at temperatures above 40 deg. C. Sample temperature during plasma treatment has been monitored. The temperature can reach up to 60 deg. C at high plasma powers and short needle-to-sample distances. However, thermal effects cannot account for bacterial destruction at low power conditions. For safe and efficient in vivo disinfection, the sample temperature should be kept low. Thus, plasma power and treatment time should not exceed 150 mW and 60 s, respectively.

  6. Efficacy of needle biopsy in postradiation thyroid disease

    Energy Technology Data Exchange (ETDEWEB)

    Rosen, I.B.; Palmer, J.A.; Bain, J.; Strawbridge, H.; Walfish, P.G.

    1983-12-01

    Retrospective review was carried out of 124 patients with nodular disease of the thyroid gland and a history of radiation exposure who had undergone needle aspiration biopsy. Latency period from time of radiation varied from 2 to 50 years; but in 92 patients it exceeded 2 decades. Our patient group included those with occupational exposure and a past history of radiation for cancer. Incidence of cancer in the entire group was 49% but, for solitary lesions, this was increased to 56%, while only a 30% incidence of cancer was found in cases of multinodular goiters. Accuracy of needle aspiration biopsy overall was 74%: for the group with cancer--90%, for the group with adenomas--65%, and for the group with ''benign'' tumors--83%. Further assessment of needle technique indicated a sensitivity of 70%, specificity of 90%, positive predictive value of 90%, and negative predictive value of 83% to 65%. The accuracy could be increased to 84% if all adenomas were considered as possible malignancies. Eighteen percent of our patients had second tumors in the head and neck or breast area. Near-total thyroidectomy was considered to be the preferred procedure without accidental nerve injury and was done in one case of hypoparathyroidism after excision of an extensive tracheal invasive cancer. No evidence of death, recurrence, or metastasis as a result of thyroid cancer has been noted. While needle biopsy is indispensable to intelligent management, the history of radiation to the head and neck area must be preeminent in the selection of patients for surgical treatment. Conservative management appears to be reasonable in those patients with ''benign'' cytology, a less than 1 cm nodule, multinodularity, a functioning thyroid scan result, but persistence in the face of a lack of response to conservative management does not appear to be warranted.

  7. Efficacy of needle biopsy in postradiation thyroid disease

    International Nuclear Information System (INIS)

    Rosen, I.B.; Palmer, J.A.; Bain, J.; Strawbridge, H.; Walfish, P.G.

    1983-01-01

    Retrospective review was carried out of 124 patients with nodular disease of the thyroid gland and a history of radiation exposure who had undergone needle aspiration biopsy. Latency period from time of radiation varied from 2 to 50 years; but in 92 patients it exceeded 2 decades. Our patient group included those with occupational exposure and a past history of radiation for cancer. Incidence of cancer in the entire group was 49% but, for solitary lesions, this was increased to 56%, while only a 30% incidence of cancer was found in cases of multinodular goiters. Accuracy of needle aspiration biopsy overall was 74%: for the group with cancer--90%, for the group with adenomas--65%, and for the group with ''benign'' tumors--83%. Further assessment of needle technique indicated a sensitivity of 70%, specificity of 90%, positive predictive value of 90%, and negative predictive value of 83% to 65%. The accuracy could be increased to 84% if all adenomas were considered as possible malignancies. Eighteen percent of our patients had second tumors in the head and neck or breast area. Near-total thyroidectomy was considered to be the preferred procedure without accidental nerve injury and was done in one case of hypoparathyroidism after excision of an extensive tracheal invasive cancer. No evidence of death, recurrence, or metastasis as a result of thyroid cancer has been noted. While needle biopsy is indispensable to intelligent management, the history of radiation to the head and neck area must be preeminent in the selection of patients for surgical treatment. Conservative management appears to be reasonable in those patients with ''benign'' cytology, a less than 1 cm nodule, multinodularity, a functioning thyroid scan result, but persistence in the face of a lack of response to conservative management does not appear to be warranted

  8. Deactivation of Escherichia coli by the plasma needle

    International Nuclear Information System (INIS)

    Sladek, R E J; Stoffels, E

    2005-01-01

    In this paper we present a parameter study on deactivation of Escherichia coli (E. coli) by means of a non-thermal plasma (plasma needle). The plasma needle is a small-sized (1 mm) atmospheric glow sustained by radio-frequency excitation. This plasma will be used to disinfect heat-sensitive objects; one of the intended applications is in vivo deactivation of dental bacteria: destruction of plaque and treatment of caries. We use E. coli films plated on agar dishes as a model system to optimize the conditions for bacterial destruction. Plasma power, treatment time and needle-to-sample distance are varied. Plasma treatment of E. coli films results in formation of a bacteria-free void with a size up to 12 mm. 10 4 -10 5 colony forming units are already destroyed after 10 s of treatment. Prolongation of treatment time and usage of high powers do not significantly improve the destruction efficiency: short exposure at low plasma power is sufficient. Furthermore, we study the effects of temperature increase on the survival of E. coli and compare it with thermal effects of the plasma. The population of E. coli heated in a warm water bath starts to decrease at temperatures above 40 deg. C. Sample temperature during plasma treatment has been monitored. The temperature can reach up to 60 deg. C at high plasma powers and short needle-to-sample distances. However, thermal effects cannot account for bacterial destruction at low power conditions. For safe and efficient in vivo disinfection, the sample temperature should be kept low. Thus, plasma power and treatment time should not exceed 150 mW and 60 s, respectively

  9. Antioxidant enzymes in the needles of different omorika lines

    OpenAIRE

    Bogdanović Jelena; Dučić Tanja M.; Milosavić Nenad B.; Vujčić Z.; Šijačić Mirjana; Isajev Vasilije; Radotić Ksenija

    2005-01-01

    Picea omorika (Panč) Purkyně (Serbian spruce) is a Balkan endemic coniferous species. We studied soluble peroxidase, catalase, polyphenol oxidase, and superoxide-dismutase activity in the needles of five omorika lines grown in a generative seed orchard. The peroxidase and polyphenol oxidase isoenzyme patterns were also investigated. Activity of the studied enzymes varied among different lines. The highest activity of peroxidase, catalase and polyphenol oxidase was found in the A3 ("borealis")...

  10. High resolution microphotonic needle for endoscopic imaging (Conference Presentation)

    Science.gov (United States)

    Tadayon, Mohammad Amin; Mohanty, Aseema; Roberts, Samantha P.; Barbosa, Felippe; Lipson, Michal

    2017-02-01

    GRIN (Graded index) lens have revolutionized micro endoscopy enabling deep tissue imaging with high resolution. The challenges of traditional GRIN lenses are their large size (when compared with the field of view) and their limited resolution. This is because of the relatively weak NA in standard graded index lenses. Here we introduce a novel micro-needle platform for endoscopy with much higher resolution than traditional GRIN lenses and a FOV that corresponds to the whole cross section of the needle. The platform is based on polymeric (SU-8) waveguide integrated with a microlens micro fabricated on a silicon substrate using a unique molding process. Due to the high index of refraction of the material the NA of the needle is much higher than traditional GRIN lenses. We tested the probe in a fluorescent dye solution (19.6 µM Alexa Flour 647 solution) and measured a numerical aperture of 0.25, focal length of about 175 µm and minimal spot size of about 1.6 µm. We show that the platform can image a sample with the field of view corresponding to the cross sectional area of the waveguide (80x100 µm2). The waveguide size can in principle be modified to vary size of the imaging field of view. This demonstration, combined with our previous work demonstrating our ability to implant the high NA needle in a live animal, shows that the proposed system can be used for deep tissue imaging with very high resolution and high field of view.

  11. Administration of International Cooperative Education Exchanges. A Wingspread Consultation.

    Science.gov (United States)

    Sprinkle, Robert M., Ed.

    Papers are presented from a consultation program on administration of international cooperative education exchanges. The papers provide the broad context in which the International Association for the Exchange of Students for Technical Experience/United States will develop programs and administrative services to facilitate international placements…

  12. Probable Mechanisms of Needling Therapies for Myofascial Pain Control

    Directory of Open Access Journals (Sweden)

    Li-Wei Chou

    2012-01-01

    Full Text Available Myofascial pain syndrome (MPS has been defined as a regional pain syndrome characterized by muscle pain caused by myofascial trigger points (MTrPs clinically. MTrP is defined as the hyperirritable spot in a palpable taut band of skeletal muscle fibers. Appropriate treatment to MTrPs can effectively relieve the clinical pain of MPS. Needling therapies, such as MTrP injection, dry needling, or acupuncture (AcP can effectively eliminate pain immediately. AcP is probably the first reported technique in treating MPS patients with dry needling based on the Traditional Chinese Medicine (TCM theory. The possible mechanism of AcP analgesia were studied and published in recent decades. The analgesic effect of AcP is hypothesized to be related to immune, hormonal, and nervous systems. Compared to slow-acting hormonal system, nervous system acts in a faster manner. Given these complexities, AcP analgesia cannot be explained by any single mechanism. There are several principles for selection of acupoints based on the TCM principles: “Ah-Shi” point, proximal or remote acupoints on the meridian, and extra-meridian acupoints. Correlations between acupoints and MTrPs are discussed. Some clinical and animal studies of remote AcP for MTrPs and the possible mechanisms of remote effectiveness are reviewed and discussed.

  13. Efficacy of dry needling for treatment of myofascial pain syndrome.

    Science.gov (United States)

    Fogelman, Yacov; Kent, John

    2015-01-01

    Myofascial pain is a major cause of musculoskeletal regional pain. Myofascial pain, which is a high-prevalence but eminently treatable condition, is almost universally underdiagnosed by physicians and undertreated by physical therapy modalities. Large numbers of patients can be left suffering in chronic pain for years. Dry needling, also referred to as Intramuscular Stimulation, is a method in the arsenal of pain management which has been known for almost 200 years in Western medicine, yet has been almost completely ignored. With the increase in research in this field over the past two decades, there are many high-quality studies that demonstrate dry needling to be an effective and safe method for the treatment of myofascial pain when diagnosed and treated by adequately-trained physicians or physical therapists. This article provides an overview of recent literature regarding the treatment of myofascial pain syndrome, evidence for the efficacy of dry needling as a central component of its management, and a glimpse at developments in recent imaging methods to aid in the treatment of these problems.

  14. Probable Mechanisms of Needling Therapies for Myofascial Pain Control

    Science.gov (United States)

    Chou, Li-Wei; Kao, Mu-Jung; Lin, Jaung-Geng

    2012-01-01

    Myofascial pain syndrome (MPS) has been defined as a regional pain syndrome characterized by muscle pain caused by myofascial trigger points (MTrPs) clinically. MTrP is defined as the hyperirritable spot in a palpable taut band of skeletal muscle fibers. Appropriate treatment to MTrPs can effectively relieve the clinical pain of MPS. Needling therapies, such as MTrP injection, dry needling, or acupuncture (AcP) can effectively eliminate pain immediately. AcP is probably the first reported technique in treating MPS patients with dry needling based on the Traditional Chinese Medicine (TCM) theory. The possible mechanism of AcP analgesia were studied and published in recent decades. The analgesic effect of AcP is hypothesized to be related to immune, hormonal, and nervous systems. Compared to slow-acting hormonal system, nervous system acts in a faster manner. Given these complexities, AcP analgesia cannot be explained by any single mechanism. There are several principles for selection of acupoints based on the TCM principles: “Ah-Shi” point, proximal or remote acupoints on the meridian, and extra-meridian acupoints. Correlations between acupoints and MTrPs are discussed. Some clinical and animal studies of remote AcP for MTrPs and the possible mechanisms of remote effectiveness are reviewed and discussed. PMID:23346211

  15. Effects of Rotational Motion in Robotic Needle Insertion

    Science.gov (United States)

    Ramezanpour, H.; Yousefi, H.; Rezaei, M.; Rostami, M.

    2015-01-01

    Background Robotic needle insertion in biological tissues has been known as one the most applicable procedures in sampling, robotic injection and different medical therapies and operations. Objective In this paper, we would like to investigate the effects of angular velocity in soft tissue insertion procedure by considering force-displacement diagram. Non-homogenous camel liver can be exploited as a tissue sample under standard compression test with Zwick/Roell device employing 1-D axial load-cell. Methods Effects of rotational motion were studied by running needle insertion experiments in 5, 50 and 200 mm/min in two types of with or without rotational velocity of 50, 150 and 300 rpm. On further steps with deeper penetrations, friction force of the insertion procedure in needle shaft was acquired by a definite thickness of the tissue. Results Designed mechanism of fixture for providing different frequencies of rotational motion is available in this work. Results for comparison of different force graphs were also provided. Conclusion Derived force-displacement graphs showed a significant difference between two procedures; however, tissue bleeding and disorganized micro-structure would be among unavoidable results. PMID:26688800

  16. Needle catheter duodenostomy: a technique for duodenal alimentation of birds.

    Science.gov (United States)

    Goring, R L; Goldman, A; Kaufman, K J; Roberts, C; Quesenberry, K E; Kollias, G V

    1986-11-01

    A technique for duodenal alimentation (needle catheter duodenostomy) of birds was developed, using the domestic pigeon (Columba livia) as the experimental model. A needle catheter was inserted into the descending duodenum of 5 pigeons and was secured to the body wall and dorsum of each bird. A liquid diet was administered daily (in equal amounts of 0, 4, 8, 12, and 16 hours) for 14 days without adverse effects. On day 15, the catheters were removed, and the birds immediately resumed normal consumption of a pigeon ration and water diet. Although 4 of the 5 birds had minor weight loss, dietary alterations probably could be used on an individual basis to alleviate this problem. After oral alimentation was resumed, the 5 birds exceeded their initial body weight within 7 days. Four weeks after catheter removal, positive-contrast radiographic evaluations indicated that the duodenum of each pigeon appeared normal. Needle catheter duodenostomy was a viable method of alimentation in the domestic pigeon. This technique should be applicable for other avian species requiring bypass of the upper gastrointestinal tract proximal to the region of catheter insertion in the duodenum.

  17. Renal biopsy with 16G needle: a safety study.

    Science.gov (United States)

    Guerrero-Ramos, F; Villacampa-Aubá, F; Jiménez-Alcaide, E; García-González, L; Ospina-Galeano, I A; de la Rosa-Kehrmann, F; Rodríguez-Antolín, A; Passas-Martínez, J; Díaz-González, R

    2014-11-01

    The development of percutaneous renal biopsy as a routinary diagnostic procedure for renal masses is topic of discussion for the last few years. However, this technique has been associated with some complications, although infrequent, and morbidity. Our objective is to carry out a descriptive study about complications and outcomes of orthotopic kidney biopsies with 16 G needle. A retrospective review of 180 orthotopic ultrasound-guided renal biopsies performed in our service among January 2008 to May 2010 was carried out. The procedure was developed using an automated biopsy gun (16G needle). Multiple clinical variables, early post-procedure complications and its management were collected. Complication rates as well as the relationship between risk factors and occurrence of complications were studied. Mean age was 55.8 years. The average number of biopsy cylinders per intervention was 2.49. The overall complication rate was 5.6%. An interventionist attitude derived from complication of the procedure was necessary in only 3 patients (1.67%). No surgical interventions were required and no death as consequence of procedure was registered. No relationship between hypertension (P=.09) previous anticoagulation (P=.099) or previous antiaggregation (P=.603) and complications were demonstrated. In 2.8% of biopsies the material obtained was insufficient for diagnosing. Percutaneous ultrasound-guided renal biopsy with 16G needle is a safe technique with high diagnostic performance. Copyright © 2013 AEU. Published by Elsevier Espana. All rights reserved.

  18. Treatment of temporomandibular myofascial pain with deep dry needling

    Science.gov (United States)

    Gonzalez-Perez, Luis M.; Granados-Nuñez, Mercedes; Urresti-Lopez, Francisco J.

    2012-01-01

    Objectives: The present study was designed to evaluate the usefulness of deep dry needling in the treatment of temporomandibular myofascial pain. Study Design: We selected 36 patients with myofascial pain located in the external pterygoid muscle (30 women/6 men, mean age=27 years with SD±6,5). We studied differences in pain with a visual analog scale and range of mandibular movements before and after intervention. Results: We found a statistically significant relationship (p<0,01) between therapeutic intervention and the improvement of pain and jaw movements, which continued up to 6 months after treatment. Pain reduction was greater the higher was the intensity of pain at baseline. Conclusions: Although further studies are needed, our findings suggest that deep dry needling in the trigger point in the external pterygoid muscle can be effective in the management of patients with myofascial pain located in that muscle. Key words:Temporomandibular joint, myofascial pain, external pterygoid muscle, trigger point, deep dry needling. PMID:22549679

  19. Clinical use of disinfectable needle-free connectors.

    Science.gov (United States)

    Yébenes, Juan C; Serra-Prat, Mateu

    2008-12-01

    In 1992, the United States Food and Drug Administration required health care services to adopt needle-free devices to prevent health care workers' exposure to bloodborne pathogens resulting from needlestick injuries, and several systems of disinfectable needle-free connectors (DNC) were introduced. MICROBIAL COLONIZATION: Experimental studies showed that DNCs designed with a split septum (SS-DNCs) and mechanical valve systems (MLV-DNC) prevented endoluminal colonization as effectively as needles or conventional caps. A comparison of the microbiologic barrier effect of SS-DNCs, MLV-DNCs, and passive positive-pressure (PPV)-DNCs found that PPV-DNCs were least effective in providing protection under experimental conditions of poor handling practices and high microorganism concentrations. PREVENTION OF CATHETER-RELATED BLOODSTREAM INFECTIONS: Some randomized trials show a positive or neutral effect of DNC use on the prevention of catheter-related bloodstream infections (CR-BSIs); however, some investigators have reported outbreaks of CR-BSIs following the introductions of DNCs that could be related to noncompliance with DNC handling recommendations or the use of PPV-DNCs. Strategies focused in the implication of the nurse staff in CRBSI surveillance increase compliance with DNC handling recommendations and minimize the risk of developing a CR-BSI. DNCs can be used safely if staff complies with recommendations for use.

  20. Frontalis sling surgery: do we really need the Wright needle?

    Directory of Open Access Journals (Sweden)

    Eduardo Damous Fontenele Feijó

    2016-04-01

    Full Text Available ABSTRACT Purpose: The aim of this study is to describe a variation in technique of the frontalis sling surgery with silicone rods and its results, using an alternative needle with similar effectiveness to the Wright needle at a reduced cost. Methods: This was a prospective, interventional, noncomparative study of patients with severe ptosis who underwent surgical correction using a simple and modified frontalis sling surgery technique. Patients were included in this study from January 2012 to January 2014. 23 surgeries were performed on 15 patients. The minimum "follow-up" was 12 months. Results: Most patients had congenital ptosis (86% and the average preoperative margin reflex distance 1 (MRD1 was -1.1 mm (range -3 to 0 mm. 1 week post-operation, this was 2.7 mm ( 1.8 to 3.8 mm, 1.8 mm after 1 month and 1.7 mm (1 to 2.5 mm after one year. The satisfaction rate was 80% (12 patients. Among the dissatisfied patients, one had extrusion and infection with subsequent explantation of the wire, one had asymmetry greater than 2 mm and one had persistent lagophthalmos and punctate keratitis, with subsequent explantation of silicone. Conclusion: The use of silicone rods with tarsal fixation using an alternative needle was effective in the treatment of severe ptosis with few complication rates, a low rate of dissatisfaction and good stability of the results in the follow-up period.