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Sample records for conditions including difficult

  1. Difficult Airway Management in Field Conditions: Somalia Experience.

    Science.gov (United States)

    Özkan, Ahmet Selim; Nasır, Serdar Nazif

    2015-10-01

    Difficult airway is defined as having the patient's mask ventilation or difficult tracheal intubation of an experienced anaesthesiologist. A number of reasons, such as congenital or acquired anatomical anomalies, can cause difficult intubation and difficult ventilation. Keeping all equipment ready for airway management of patients will reduce mortality and complications. In this case, it is intended that the submission of difficult airway management who encountered in mandibular reconstruction for mandible bone defect repairing with reconstruction plates before at the field conditions in Somalia.

  2. APPLICATION OF INDIVIDUAL WASTEWATER TREATMENT PLANTS IN A DIFFICULT SOIL AND WATER CONDITIONS

    Directory of Open Access Journals (Sweden)

    Beata Karolinczak

    2014-11-01

    Full Text Available The article presents technological and economic aspects of application of individual wastewater treatment plans in difficult soil and water conditions which include impermeable soils and a high level of groundwater. Technical analysis reviews available information around possible technologies applicable to sewage treatment and its discharge. Economic analysis highlights additional outlays that are associated with a construction of the treatment plant in such difficult conditions. In summary, a cost-effectiveness analysis is carried out.

  3. Full-face excavation of large tunnels in difficult conditions

    Institute of Scientific and Technical Information of China (English)

    Giovanni Barla

    2016-01-01

    Following a few preliminary remarks on the tunneling methods at the beginning of the 20th century, the successful applications of the full-face method also in difficult conditions are underlined. The attention is posed on the use of a systematic reinforcement of the face and of the ground, by means of fiber-glass elements. A selection of tunnels where this method was used successfully is reported with the pur-pose of illustrating the wide spectrum of ground conditions where it has been applied. Then, following a description of the main concepts behind the method, the attention moves from the so-called “heavy method”, where deformations are restrained, to the “light method”, where deformations are allowed with the intention to decrease the stresses acting on the primary and final linings. The progress in the application of the“light method”is underlined, up to the development of a novel technique, which relies on the use of a yielding support composed of top head steel sets with sliding joints and special deformable elements inserted in the primary lining. The well-known case study of the Saint Martin La Porte access adit, along the Lyon-Turin Base Tunnel, is described. In this tunnel, a yield-control support system combined with full-face excavation has been adopted successfully in order to cope with the large deformations experienced during face advance through the Carboniferous formation. The monitoring results obtained during excavation are illustrated, together with the modeling studies performed when paying attention to the rock mass time-dependent behavior.

  4. Laparoendoscopic Rendezvous for Concomitant Cholecystocholedocholithiasis: A Successful Modality Even in the Most Difficult Presentations Including Pregnancy

    Science.gov (United States)

    Mikwar, Zaher Abdulaziz; Ahmad, Akram Neyaz

    2016-01-01

    Background. Laparoendoscopic rendezvous (LERV) technique is emerging as an attractive treatment option for concomitant cholecystocholedocholithiasis. In this paper, we report our experience in performing the LERV technique in patients with unusual presentations in terms of anatomical difficulty, pregnancy, multiple comorbid diseases, and postlaparotomy. We aim to highlight the effectiveness of the LERV technique in some clinical situations where conventional methods would fail or carry high risks in adequately managing concomitant cholecystocholedocholithiasis. Methods. Four patients diagnosed to have concomitant cholecystocholedocholithiasis with associated difficult presentation or comorbid diseases were treated using the LERV technique. One patient presented with difficult anatomy where ERCP failed at initial attempts. Another patient was pregnant (first trimester). A third patient had complex comorbid diseases (bronchial asthma, hypertension, congestive heart failure, and end-stage renal disease on regular hemodialysis). A fourth patient had previous laparotomy and sigmoidectomy for diverticular disease and had severe hospital phobia. Results. All patients tolerated the LERV technique very well; no intraoperative occurrence was reported. The mean operative time was 86.3 ± 17.2 minutes; mean time of the endoscopic part was 29.4 ± 3.57 minutes. The mean blood loss was 44.3 ± 18.2 mL (range 20–85). Residual stone, postoperative complications, postoperative morbidity, and postoperative mortality were 0 (0%). Postoperative short hospital stay was reported in all patients, average 3 days (range 2–4). Conclusion. LERV procedure is a safe and effective treatment option for the management of concomitant cholecystocholedocholithiasis, even in difficult situations where other methods would fail or carry high risks, or in patients presenting with severe comorbid diseases or pregnancy. This procedure may emerge as an attractive alternative option for high

  5. Laparoendoscopic Rendezvous for Concomitant Cholecystocholedocholithiasis: A Successful Modality Even in the Most Difficult Presentations Including Pregnancy

    Directory of Open Access Journals (Sweden)

    Bader Hamza Shirah

    2016-01-01

    Full Text Available Background. Laparoendoscopic rendezvous (LERV technique is emerging as an attractive treatment option for concomitant cholecystocholedocholithiasis. In this paper, we report our experience in performing the LERV technique in patients with unusual presentations in terms of anatomical difficulty, pregnancy, multiple comorbid diseases, and postlaparotomy. We aim to highlight the effectiveness of the LERV technique in some clinical situations where conventional methods would fail or carry high risks in adequately managing concomitant cholecystocholedocholithiasis. Methods. Four patients diagnosed to have concomitant cholecystocholedocholithiasis with associated difficult presentation or comorbid diseases were treated using the LERV technique. One patient presented with difficult anatomy where ERCP failed at initial attempts. Another patient was pregnant (first trimester. A third patient had complex comorbid diseases (bronchial asthma, hypertension, congestive heart failure, and end-stage renal disease on regular hemodialysis. A fourth patient had previous laparotomy and sigmoidectomy for diverticular disease and had severe hospital phobia. Results. All patients tolerated the LERV technique very well; no intraoperative occurrence was reported. The mean operative time was 86.3±17.2 minutes; mean time of the endoscopic part was 29.4±3.57 minutes. The mean blood loss was 44.3±18.2 mL (range 20–85. Residual stone, postoperative complications, postoperative morbidity, and postoperative mortality were 0 (0%. Postoperative short hospital stay was reported in all patients, average 3 days (range 2–4. Conclusion. LERV procedure is a safe and effective treatment option for the management of concomitant cholecystocholedocholithiasis, even in difficult situations where other methods would fail or carry high risks, or in patients presenting with severe comorbid diseases or pregnancy. This procedure may emerge as an attractive alternative option for high

  6. Morbidly obese parturient: Challenges for the anaesthesiologist, including managing the difficult airway in obstetrics. What is new?

    Directory of Open Access Journals (Sweden)

    Durga Prasada Rao

    2010-01-01

    Full Text Available The purpose of this article is to review the fundamental aspects of obesity, pregnancy and a combination of both. The scientific aim is to understand the physiological changes, pathological clinical presentations and application of technical skills and pharmacological knowledge on this unique clinical condition. The goal of this presentation is to define the difficult airway, highlight the main reasons for difficult or failed intubation and propose a practical approach to management Throughout the review, an important component is the necessity for team work between the anaesthesiologist and the obstetrician. Certain protocols are recommended to meet the anaesthetic challenges and finally concluding with "what is new?" in obstetric anaesthesia.

  7. Morbidly obese parturient: Challenges for the anaesthesiologist, including managing the difficult airway in obstetrics. What is new?

    Science.gov (United States)

    Rao, Durga Prasada; Rao, Venkateswara A

    2010-11-01

    The purpose of this article is to review the fundamental aspects of obesity, pregnancy and a combination of both. The scientific aim is to understand the physiological changes, pathological clinical presentations and application of technical skills and pharmacological knowledge on this unique clinical condition. The goal of this presentation is to define the difficult airway, highlight the main reasons for difficult or failed intubation and propose a practical approach to management Throughout the review, an important component is the necessity for team work between the anaesthesiologist and the obstetrician. Certain protocols are recommended to meet the anaesthetic challenges and finally concluding with "what is new?" in obstetric anaesthesia.

  8. Difficult Geotechnical Conditions Under the Palace Complex, Case Study from Cianowice, Near Krakow, Poland

    Science.gov (United States)

    Gil-Mastalerczyk, Joanna; Gil, Regina

    2016-10-01

    The palace complex in Cianowice near Krakow (Lesser Poland, Poland) built around 1890, after 1945 ceased to function as a residential, so the whole building underwent successive devastation. Military activities, ad hoc repairs and long-term shortage of funds in Poland, led to the destruction of the magnificent assumptions. Since 2006. Palace remained completely unsecured and unattended. Performed in 2012-2015 modernization of the historic palace with the expansion of the basement (for residential building multigenerational) has become the occasion for a thorough diagnosis of the prevailing geotechnical conditions and the state of preservation of threads stone and brick walls and vaults chambers basement. Difficult ground conditions, water penetration, lack of insulation of horizontal and vertical has become one of the main causes of the destruction of the foundations and walls of basements. Moisture from the ground, rising damp in the walls (with dissolved salts in it), evaporate causing erosion of the walls. The result it led to the weakening of the structural and breakout layers of walls. The phenomenon has become particularly clear after the geotechnical surveys, excavations and complete discovery of the basement walls. The conducted works related to general technical renovation and restoration, included foundations (lining and insulation), walls, floors and roof. The assumption palace in Cianowice, through appropriate interference with the use of modern and introduction of a new substance, in any manner that emphasizes value and historical monument became possible to restore the important significance of the object and place.

  9. Difficult Asthma

    Directory of Open Access Journals (Sweden)

    Ahmet Uslu

    2003-03-01

    Full Text Available Difficult asthma is a distinct entity of asthma, comprising approximately %5 of asthmatic patients. There is no agreed definition of difficult asthma. It will include asthma uncontrolled by new standard therapy, steroid dependent, steroid resistant and severe asthma. In this study difficult asthma; clinical features, risk factors, pathophysiology and novel therapies are summarized by literatures.

  10. Difficult asthma

    OpenAIRE

    Ahmet Uslu; Tülay Özdemir

    1989-01-01

    Difficult asthma is a distinct entity of asthma, comprising approximately %5 of asthmatic patients. There is no agreed definition of difficult asthma. It will include asthma uncontrolled by new standard therapy, steroid dependent, steroid resistant and severe asthma. In this study difficult asthma; clinical features, risk factors, pathophysiology and novel therapies are summarized by literatures.

  11. Psychopathology in difficult asthma

    NARCIS (Netherlands)

    Prins, L.C.; van Son, M.J.M.; Keimpema, A.R.; van Ranst, D; Pommer, A; Meijer, J.W.; Pop, V.J.M.

    2015-01-01

    OBJECTIVE: Within the asthma population, difficult asthma (DA) is a severe condition in which patients present with frequent exacerbations, hospitalizations and emergency room visits. The identification and treatment of psychopathology is included in the management of DA. Psychopathology is supposed

  12. Probe Drilling Ahead of Two TBMs in Difficult Ground Conditions in Turkey

    Science.gov (United States)

    Bilgin, Nuh; Ates, Ugur

    2016-07-01

    This paper summarizes the results of probe drilling carried out ahead of TBMs in two difficult tunneling projects in Turkey. The tunnels have completely different geological characteristics which necessitated two different methods of data analysis. Melen Water Tunnel was excavated under Istanbul Bosphorus within sedimentary rocks which are cut frequently by andesitic dykes, fracturing the surrounding rocks and creating a potential risk for water ingress into the tunnel. At the beginning of Melen Project, pioneering probe drillings with petrographic analysis and strength tests were performed on samples collected from TBM muck. This analysis allowed identifying some critical normalized probe drilling rate values for predicting potential weak zones created by andesitic dykes. These studies gave a sound basis for further interpretation of TBM and geologic data for the same tunnel. The second set of probe drilling analysis was from Kargi Tunnel. The North Anatolian Fault highly affected the tunnel excavation by fractured rock formations. Although the change in normalized probe drilling data was a good indicator of fractured zones, the diversity of rock formations made it difficult to interpret the data.

  13. Converter-controlled belt conveyor systems under the difficult conditions; Umrichtergesteuerte Bandanlagen unter schwierigen Bedingungen

    Energy Technology Data Exchange (ETDEWEB)

    Horz, Michael-Josef [RAG Deutsche Steinkohle, Herne (Germany). Abt. Elektrotechnik unter Tage; Mueller, Uwe [RAG Deutsche Steinkohle, Herne (Germany). Servicebereich Technik- und Logistikdienste

    2010-05-15

    Panel 572 is located at a depth of 1,200 m in the Girondelle seam at the West mine. The panel has a mean thickness of 2.5 m and is designed as a shearer loader face with a length of 460 m. Coal is conveyed to the shaft by six belts with a total length of about 6 km and a total lifting height of 396 m. The main conveyor belt 1 with an installed power of 3 MW links the panel to a bunker. Conveyor belts 2 to 4 each with 500 kW drive power have operated in a stable manner since the start of working of the panel. Due to in-seam drivage with a selective-cut machine of type AM 85 an area with a marked trough was produced in the coal conveyor road. This area is traversed by belt 5. The planning and control of the conveyor belt in this difficult geological environment impose high demands on drive and control technology. To ensure stable operation under different loads a raft of measures was resolved and implemented. The contribution examines the problem and describes the implemented measures in detail. (orig.)

  14. Effectiveness of qualified riflemen archery in control exercises with difficult conditions performance.

    Directory of Open Access Journals (Sweden)

    Antonov Sergej Vasil'evich

    2011-09-01

    Full Text Available In the article the study options adversarial exercise of archery with the abnormal conditions of a control to determine the specific training of athletes. It is found no differences between the absolute values of the results of the exercise of options sitting on a chair and standing on the platform and their difference from the values in the exercise with eyes closed. To set available of correlation relationships of varying strength between the results of the exercise of options sitting on a chair, standing on the platform with eyes closed, indicators of tension bow, qualifications and gender athletes.

  15. Coping with difficult weather and snow conditions: Reindeer herders’ views on climate change impacts and coping strategies

    Directory of Open Access Journals (Sweden)

    Minna T. Turunen

    2016-01-01

    Full Text Available Winter is a critical season for reindeer herding, with the amount and quality of snow being among the most important factors determining the condition of reindeer and the annual success of the livelihood. Our first aim was to model the future (2035–2064 snow conditions in northern Finland, especially the quantities related to ground ice and/or ice layers within the snow pack, exceptionally deep snow and late snow melt. Secondly, we studied the strategies by which herders cope with the impacts of difficult weather and snow conditions on herding by interviewing 21 herders. SNOWPACK simulations indicate that snow cover formation will be delayed by an average of 19 days and snow will melt 16 days earlier during the period 2035–2064 when compared to 1980–2009. There will be more frequent occurrence of ground ice that persists through the winter and the ice layers in open environments will be thicker in the future. The snow cover will be 26–40% thinner and snow in open environments will be denser. Variability between winters will grow. In interviews, herders indicated that a longer snowless season and thin snow cover would be advantageous for herding due to increased availability of forage, but more frequent icing conditions would cause problems. The most immediate reaction of reindeer to the decreased availability of forage caused by difficult snow conditions is to disperse. This effect is intensified when the lichen biomass on the pastures is low. To cope with the impacts of adverse climatic conditions, herders increase control over their herds, intensify the use of pasture diversity, take reindeer into enclosures and/or start or intensify supplementary feeding. The research also reveals that predators, competing land uses and the high prices of supplementary feed and fuel were the major threats to the herders’ coping capacity. Coping capacity was facilitated by, among other factors, the herders’ experience-based traditional knowledge

  16. What Makes Physics Difficult?

    Science.gov (United States)

    Ornek, Funda; Robinson, William R.; Haugan, Mark P.

    2008-01-01

    According to many students, introductory physics is difficult. We are investigating what students believe makes physics difficult and what can be done to overcome these difficulties. Our investigation includes an initial free-response survey given to approximately 1400 students in an introductory physics course and a second survey, which was given…

  17. Conflict Management: Difficult Conversations with Difficult People

    OpenAIRE

    Overton, Amy R.; Lowry, Ann C.

    2013-01-01

    Conflict occurs frequently in any workplace; health care is not an exception. The negative consequences include dysfunctional team work, decreased patient satisfaction, and increased employee turnover. Research demonstrates that training in conflict resolution skills can result in improved teamwork, productivity, and patient and employee satisfaction. Strategies to address a disruptive physician, a particularly difficult conflict situation in healthcare, are addressed.

  18. Confidence in Airline Performance in Difficult Market Conditions: An Analysis of JetBlue's Financial Market Results

    Science.gov (United States)

    Flouris, Triant; Walker, Thomas

    2005-01-01

    This paper examines the stock market s reaction to JetBlue s Initial Public Offering (1PO) and subsequent price movements of the stock. In particular, w e examine whether the euphoria surrounding JetBlue s IPO carried over to other firms in the sector by testing whether the shares of JetBlue s competitors showed a significant price reaction to JetBlue s IPO. JetBlue's IPO took place just a few months following September 11, 2001. These events resulted in dramatic changes in the airline industry and had significant implications on the economic gains of airlines. We examine JetBlue s accounting and stock performance and compare it to the relative performance of Southwest Airlines (SWA), a representative of the loa-cost carrier group. In addition, we compare both JetBlue's and SWA's financial condition and the relative performance of their stock to two mainline U S. carriers, Continental and Northwest. representatives of the conventional-cost carrier group. We analyze whether there are any performance differences among the low-cost carriers and between low-cost carriers and conventional-cost carriers. In particular, we examine whether low-cost carriers were able to sustain the economic impacts of 9/11 better than the conventional-cost carriers.

  19. A job description for the effective self-management of a long-term condition: experiences of living with difficult asthma.

    Science.gov (United States)

    Deacon, Maureen; Rickards, Emma

    2013-04-01

    This paper concerns a study exploring the salience of a 'job description' for the effective self-management of a long-term condition to the experiences of a group of women living with difficult asthma. This is a life-threatening disease. It has been claimed that sufferers are a marginalised, misunderstood, mistreated and vulnerable group. The method involved secondary analysis of focus group data. The job description has been developed as a tool to enable nurses to facilitate and support effective self-management. This study was designed to examine the application of this tool to a particular case. Long-term conditions are a growing feature of the developed world and are strongly implicated in health inequalities. They are more prevalent in socially and economically disadvantaged populations and therefore add further burden to already vulnerable people. Effective self-management is critical to adapting and adjusting to the experience of a long-term condition and nurses have a responsibility to promote this process.

  20. A Lumped Thermal Model Including Thermal Coupling and Thermal Boundary Conditions for High Power IGBT Modules

    DEFF Research Database (Denmark)

    Bahman, Amir Sajjad; Ma, Ke; Blaabjerg, Frede

    2017-01-01

    Detailed thermal dynamics of high power IGBT modules are important information for the reliability analysis and thermal design of power electronic systems. However, the existing thermal models have their limits to correctly predict these complicated thermal behavior in the IGBTs: The typically used...... thermal distribution under long-term studies. Meanwhile the boundary conditions for the thermal analysis are modeled and included, which can be adapted to different real field applications of power electronic converters. Finally, the accuracy of the proposed thermal model is verified by FEM simulations...... thermal model based on one-dimensional RC lumps have limits to provide temperature distributions inside the device, moreover some variable factors in the real-field applications like the cooling and heating conditions of the converter cannot be adapted. On the other hand, the more advanced three...

  1. The Genus Aloe: Phytochemistry and Therapeutic Uses Including Treatments for Gastrointestinal Conditions and Chronic Inflammation.

    Science.gov (United States)

    Cock, I E

    2015-01-01

    Plants of the genus Aloe have perhaps the longest recorded history of medicinal usage and are amongst the most widely used plants for traditional medicinal purposes worldwide. Aloe vera, Aloe ferox, Aloe arborescens and Aloe perryi are the best known and most widely used, but many other species are also used for their therapeutic properties. The Aloes have been used since ancient times, particularly for the treatment of microbial infections, gastrointestinal disorders and inflammatory conditions. In addition to their myriad uses in traditional therapeutics, the Aloes have also been used as components of cosmetic formulations, and in the food and beverage industries. Despite their wide acceptance, studies from different laboratories often report wide variations in the therapeutic bioactivities from within the same Aloe species, even when the same extraction procedures are used. Furthermore, leaves from individual Aloe plants within the same species may have widely varying levels of the bioactive phytochemicals. Phytochemical analyses have shown that many Aloe species contain various carbohydrate polymers (notably glucomannans) and a range of other low molecular weight phenolic compounds including alkaloids, anthraquinones, anthrones, benzene and furan derivatives, chromones, coumarins, flavonoids, phytosterols, pyrans and pyrones. There has been a wealth of information published about the phytochemistry and therapeutic potential of the Aloes (especially Aloe vera). Much of this has been contradictory. Intra- and interspecies differences in the redox state of the individual Aloe components and in the ratios of these components may occur between individual plants. These factors may all affect the physiological properties of Aloe extracts. Due to the structure and chemical nature of many of the Aloe phytochemicals, it is likely that many of the reported medicinal properties are due to antioxidant or prooxidant effects. The antioxidant/prooxidant activities of many Aloe

  2. Making marketing difficult

    DEFF Research Database (Denmark)

    Meyer, Gitte

    2005-01-01

    embraced by the market-place, while maintaining the old scientific alienation from political life. The case is made that modern science was born ambiguous towards the market-place, and that such ambivalence - relating to different interpretations of the idea of knowledge as a common good - is still...... to be encountered among scientists. Drawing on series of interviews with scientists from bioscience and biotechnology it is argued that, on the one hand, scientists are into marketing and PR exercises; but, on the other hand, they also voice a demand that journalists should make such marketing difficult...

  3. Features of Creation and Operation of Electric and Hybrid Vehicles in Countries with Difficult Climatic Conditions, for Example, in the Russian Federation

    Science.gov (United States)

    Karpukhin, K.; Terenchenko, A.

    2016-11-01

    The trend of increasing fleet of electric or hybrid vehicles and determines the extension of the geographical areas of operation, including the Northern areas with cold winter weather. Practically in all territory of Russia the average winter temperature is negative. With the winter temperatures can be below in Moscow -30°C, in Krasnoyarsk -50°C. Battery system can operate in a wide temperature range, but there are extremes that should be remembered all the time, especially in cold climates like Russia. In the operating instructions of the electric car Tesla Model S indicate that to save the battery don't use at temperatures below -15°C. The paper presents the dependence of the cooling time and heating of the battery cell at different ambient temperatures and provides guidance on allowable cooling time while using and not thermally insulated thermally containers Suggests using the temperature control on the basis of thermoelectric converters Peltier connection from the onboard electrical network of the electric vehicle.

  4. Dealing with difficult pasts

    DEFF Research Database (Denmark)

    McAtackney, Laura

    2013-01-01

    with in the post-conflict context differs dramatically. Robben Island, in South Africa, closed in 1996 and was quickly transformed into a museum (1997) and then World Heritage site (1999), thus confirming its significance to both the national and international community as a symbolic cornerstone of the new...... ‘Rainbow’ nation. In comparison, the best known political prison in Northern Ireland – Long Kesh / Maze – closed in 2000 and despite three different proposals for its future ‘regeneration’ its remains are closed to the public whilst plans for a conflict transformation centre based at the site tentatively...... develop. I argue that such politically loaded manifestations of difficult pasts are highly significant during post-conflict renegotiations of society. They act as reminders of what happened, a commentary on how far society has – or has not moved on – and the potential for future relations and directions...

  5. Several difficult problems in lubrication

    Institute of Scientific and Technical Information of China (English)

    2001-01-01

    Whether in industry or in our human life, we will encounter many lubrication problems. A goodlubricant not only should have good performance, but also should meet the needs of the specific condi-tions. Here we give some examples about the difficult problems in lubrication and their solutions. Theseexamples are: (i) hydrolysis and emulsion of ZDTP; (ii) corrosion of chlorowax; (iii) coexistence of greencompressor oil and cryogen (R-134A); (iv) lubrication of cystoscope and catheter. On the same time,some achievements in lubrication field provided by Lubrication Chemistry Laboratory of Shanghai Uni-versity will be introduced in this paper.

  6. Management of difficult urticaria

    Directory of Open Access Journals (Sweden)

    Yadav Sudha

    2009-01-01

    Full Text Available Chronic urticaria, a major health problem causing patient′s distress, induces often physicians′ dilemma while dealing with its etiology, investigations and management. Clinical approach of such cases should include apart from clinical history and physical examination laboratory investigations like routine blood test, thyroid profile, etc. as well as sometimes special test like autologous serum skin test. Management includes reassurance, avoidance of precipitating factors, treatment of underlying disorders, and non-pharmacological approach along with pharmacotherapy. First line drug therapy comprises non-sedative and sedative antihistamines, second line doxepin, nifedipine, leukotriene-inhibitors, sulfasalazine, etc. and third line cyclosporine, dapsone, colchicin, etc.

  7. The difficult primary total knee arthroplasty: a review.

    Science.gov (United States)

    Baldini, A; Castellani, L; Traverso, F; Balatri, A; Balato, G; Franceschini, V

    2015-10-01

    Primary total knee arthroplasty (TKA) is a reliable procedure with reproducible long-term results. Nevertheless, there are conditions related to the type of patient or local conditions of the knee that can make it a difficult procedure. The most common scenarios that make it difficult are discussed in this review. These include patients with many previous operations and incisions, and those with severe coronal deformities, genu recurvatum, a stiff knee, extra-articular deformities and those who have previously undergone osteotomy around the knee and those with chronic dislocation of the patella. Each condition is analysed according to the characteristics of the patient, the pre-operative planning and the reported outcomes. When approaching the difficult primary TKA surgeons should use a systematic approach, which begins with the review of the existing literature for each specific clinical situation.

  8. [Difficult to control severe asthma].

    Science.gov (United States)

    Magnan, Antoine; Pipet, Anaïs

    2011-03-01

    Difficult to control severe asthma is characterized by the persistence of inacceptable symptoms of asthma despite a continuous treatment with at least high doses of inhaled steroids and long acting bronchodilators. The diagnosis is done after a period of observation and some investigations that will allow confirm the diagnosis of asthma, eliminate alternative diagnosis and etiological forms that would be difficult to treat intrinsically (allergic broncho-pulmonary aspergillosis, Churg and Strauss disease, chronic eosinophilic pneumonia, occupational asthma). At the end of this period devoted to diagnosis a systematic approach is set up to take care of these patients. Therapeutic education includes action plans and measures for triggering factors avoidance in order to prevent exacerbations. Comorbidities such as rhinitis, nasal polyposis, gastro-oesophageal reflux and obesity are taken into account. Lastly, the treatment must be adapted according to the patient's preferences and aims, and to the asthma severity. Ultimately in steroid-dependent asthma, the lowest efficient dose is tracked continuously. For these patients, new molecules are needed.

  9. Thoracic radiotherapy in stereotactic conditions: difficulties met when starting up and proposed solutions; Radiotherapie thoracique en conditions stereotaxiques: difficultes rencontrees lors de la mise en route et solutions proposees

    Energy Technology Data Exchange (ETDEWEB)

    Halley, A.; Assouline, A.; Belghith, B.; Hemery, C.; Cuenca, X.; Lang, P.; Boisserie, G.; Simon, J.M.; Mazeron, J.J.; Feuvret, L. [Groupe hospitalier Pitie-Salpetriere, assistance Publique-Hopitaux de Paris, Paris (France)

    2011-10-15

    The authors report the study of difficulties met when starting up a thoracic irradiation in stereotactic conditions with respiratory feedback by means of a spirometry system. Eight patients have been selected. Images have been acquired in deep-inspiration breath-hold. Various dose levels have delivered in four sessions on the 80-per-cent isodose. It appears that this technique is constrained by the patient's physical capacities and the available technical means. Solutions are the use of a suitable support system, the screening of harmful positioning, and a training phase to respiratory feedback. Short communication

  10. Probability of Face Contact for a High-Speed Pressurised Liquid Film Bearing Including a Slip Boundary Condition

    Directory of Open Access Journals (Sweden)

    Nicola Y. Bailey

    2015-06-01

    Full Text Available An initial deterministic mathematical model for the dynamic motion of a simple pressurised liquid film bearing is derived and utilised to evaluate the possibility of bearing contact for thin film operation. For a very thin film bearing the flow incorporates a Navier slip boundary condition as parametrised by a slip length that in general is subject to significant variability and is difficult to determine with precision. This work considers the formulation of a modified Reynolds equation for the pressurised liquid flow in a highly rotating coned bearing. Coupling of the axial motion of the stator is induced by prescribed axial oscillations of the rotor through the liquid film. The bearing gap is obtained from solving a nonlinear second-order non-autonomous ordinary differential equation, via a mapping solver. Variability in the value of the slip length parameter is addressed by considering it as a random variable with prescribed mean and standard deviation. The method of derived distributions is used to exactly quantify the impact of variability in the slip length with a parametric study investigating the effect of both the deterministic and distribution parameters on the probability of contact. Additionally, as the axial rotor oscillations also have a random aspect due to possible varying excitations of the system, the probability of contact is investigated for both random amplitude of the periodic rotor oscillations and random slip length, resulting in a two parameter random input problem. The probability of contact is examined to obtain exact solutions and evaluate a range of bearing configurations.

  11. Difficult asthma: assessment and management, Part 1.

    Science.gov (United States)

    Long, Aidan A; Fanta, Christopher H

    2012-01-01

    A minority of asthma patients have disease that proves difficult to control with usual medications and experience ongoing symptoms, poor quality of life, and limitations in activity and/or frequent asthma exacerbations. This group of patients accounts for much of the expense associated with asthma care and is the focus of national and international collaborative study groups. Distinguishing between "difficult-to-manage asthma" and truly "therapy-resistant asthma" is helpful and promotes a systematic consideration of contributory factors. Critical evaluation of factors contributing to difficult-to-manage asthma including adverse environment, comorbidities, nonadherence, and incorrect diagnosis is recommended in a systematic fashion in Part 1 of this contribution.

  12. Multiphase Binary Mixture Flows in Porous Media in a Wide Pressure and Temperature Range Including Critical Conditions

    Science.gov (United States)

    Afanasyev, A.

    2011-12-01

    Multiphase flows in porous media with a transition between sub- and supercritical thermodynamic conditions occur in many natural and technological processes (e.g. in deep regions of geothermal reservoirs where temperature reaches critical point of water or in gas-condensate fields where subject to critical conditions retrograde condensation occurs and even in underground carbon dioxide sequestration processes at high formation pressure). Simulation of these processes is complicated due to degeneration of conservation laws under critical conditions and requires non-classical mathematical models and methods. A new mathematical model is proposed for efficient simulation of binary mixture flows in a wide range of pressures and temperatures that includes critical conditions. The distinctive feature of the model lies in the methodology for mixture properties determination. Transport equations and Darcy law are solved together with calculation of the entropy maximum that is reached in thermodynamic equilibrium and determines mixture composition. To define and solve the problem only one function - mixture thermodynamic potential - is required. Such approach allows determination not only single-phase states and two-phase states of liquid-gas type as in classical models but also two-phase states of liquid-liquid type and three-phase states. The proposed mixture model was implemented in MUFITS (Multiphase Filtration Transport Simulator) code for hydrodynamic simulations. As opposed to classical approaches pressure, enthalpy and composition variables together with fully implicit method and cascade procedure are used. The code is capable of unstructured grids, heterogeneous porous media, relative permeability and capillary pressure dependence on temperature and pressure, multiphase diffusion, optional number of sink and sources, etc. There is an additional module for mixture properties specification. The starting point for the simulation is a cubic equation of state that is

  13. On one-loop corrections to matching conditions of lattice HQET including 1/m{sub b} terms

    Energy Technology Data Exchange (ETDEWEB)

    Korcyl, Piotr [Deutsches Elektronen-Synchrotron (DESY), Zeuthen (Germany). John von Neumann-Inst. fuer Computing NIC

    2013-12-15

    HQET is an effective theory for QCD with N{sub f} light quarks and a massive valence quark if the mass of the latter is much bigger than LQCD. As any effective theory, HQET is predictive only when a set of parameters has been determined through a process called matching. The non-perturbative matching procedure including 1/m{sub b} terms, developed by the ALPHA collaboration, consists of 19 carefully chosen observables which are precisely computable in lattice QCD as well as in lattice HQET. The matching conditions are then a set of 19 equations which relate the QCD and HQET values of these observables. We present a study of one-loop corrections to two generic matching observables involving correlation function with an insertion of the A{sub 0} operator. Our results enable us to quantify the quality of the relevant observables in view of the envisaged nonperturbative implementation of this matching procedure.

  14. Overcoming difficult conversations in clinical supervision

    Directory of Open Access Journals (Sweden)

    Williams B

    2016-06-01

    Full Text Available Brett Williams,1 Christine King,1 Tanya Edlington,21Department of Community Emergency Health and Paramedic Practice, Monash University, Franskton, VIC, 2The Conversation Clinic Pty Ltd, Melbourne, VIC, Australia Background: Clinical supervisors are responsible for managing many facets of clinical learning and face a range of challenges when the need for "difficult" conversations arises, including the need to manage conflict and relationships. Methods: Spotlight on Conversations Workshop was developed to improve the capacity of clinical supervisors to engage in difficult conversations. They were designed to challenge the mindset of clinical supervisors about difficult conversations with students, the consequences of avoiding difficult conversations, and to offer activities for practicing difficult conversations. Preworkshop, postworkshop, and 4-month follow-up evaluations assessed improvements in knowledge, intent to improve, and confidence along with workshop satisfaction. Results: Nine workshops were delivered in a range of locations across Victoria, Australia, involving a total of 117 clinical supervisors. Preworkshop evaluations illustrated that more than half of the participants had avoided up to two difficult conversations in the last month in their workplace. Postworkshop evaluation at 4 months showed very high levels of satisfaction with the workshop's relevancy, content, and training, as well as participants' intention to apply knowledge and skills. Also shown were significant changes in participants' confidence to have difficult conversations not only with students but also with other peers and colleagues. In follow-up in-depth interviews with 20 of the 117 participants, 75% said they had made definite changes in their practice because of what they learned in the workshop and another 10% said they would make changes to their practice, but had not had the opportunity yet to do so. Conclusion: We conclude that the Spotlight on

  15. The early warning system of landslides and sediment runoffs using meteorological condition including rainfall-soil moisture index (Invited)

    Science.gov (United States)

    Kubota, T.; Silva, I. C.; Hasnawir, H.

    2009-12-01

    The research including observation of rain, soil moisture content and sediment discharge is conducted on a torrent in northern Kyushu whose geology consists of Paleozoic metamorphic rocks (mainly schist) and whose vegetation consists of mainly Japanese cypress and cedar. Soil depth is approximately 50cm in average and permeability k is 0.1~0.01 order. With data obtained by the observation for more than 4 years, standard rainfalls of warning and evacuation against the sudden sediment runoffs are analyzed. Then, the result was compared with the ones in Nuevo Leon Mexico (geology of schist, slate, k=0.01~0.001 order) and in southern Sulawesi Island Indonesia (volcanic geology, k=0.001~0.0001 order). Hitherto, various methods were proposed to analyze the warning critical standard for landslide disaster or large sediment discharge. In this study, we employed Hirano's element slope runoff theory, the Self Organized Criticality Assumption (SOC), and the Elementary Catastrophe Theory (ETC) to analyze the data, although the soil moisture fluctuation, meteorological condition such as upper air wind and dew point depression, the rainfall-soil moisture index provided by Japan Meteorological Agency was considered. The last one is a cutting edge technology based on the tank model calculation of soil moisture content combined with short term rainfall prediction which is a product of numerical simulation using radar image advection analysis compensated with surface rain data and with orographic rain effect. In Hirano's theory, we can describe the critical rain Rc and rain intensity Ric as following equation. Q/A/M/ cosθ = Ri ∫(r*cosθ)dt = Ri*R (1) ∴ Ric*Rc = C (2) Here, Q: sediment runoff or debris flow discharge, A: watershed area, M: function concerning with sediment deposit features on the upstream torrents or slopes (porosity, torrent bed slope gradient, sediment accumulation length and depth, cohesion), t: time, θ: torrent bed or hillside slope gradient, r: instant

  16. Drastic Measures for Difficult Times

    Science.gov (United States)

    Galuszka, Peter

    2008-01-01

    This article discusses how colleges and universities are taking drastic measure for difficult times. Hit hard by the global financial crisis, colleges are cutting their budgets in ways that prompt fears about access and retention for minority students. Schools are considering layoffs, unpaid furloughs for faculty and staff, hiring freezes and…

  17. A novel rescue technique for difficult intubation and difficult ventilation.

    Science.gov (United States)

    Zestos, Maria M; Daaboul, Dima; Ahmed, Zulfiqar; Durgham, Nasser; Kaddoum, Roland

    2011-01-17

    We describe a novel non surgical technique to maintain oxygenation and ventilation in a case of difficult intubation and difficult ventilation, which works especially well with poor mask fit. Can not intubate, can not ventilate" (CICV) is a potentially life threatening situation. In this video we present a simulation of the technique we used in a case of CICV where oxygenation and ventilation were maintained by inserting an endotracheal tube (ETT) nasally down to the level of the naso-pharynx while sealing the mouth and nares for successful positive pressure ventilation. A 13 year old patient was taken to the operating room for incision and drainage of a neck abscess and direct laryngobronchoscopy. After preoxygenation, anesthesia was induced intravenously. Mask ventilation was found to be extremely difficult because of the swelling of the soft tissue. The face mask could not fit properly on the face due to significant facial swelling as well. A direct laryngoscopy was attempted with no visualization of the larynx. Oxygen saturation was difficult to maintain, with saturations falling to 80%. In order to oxygenate and ventilate the patient, an endotracheal tube was then inserted nasally after nasal spray with nasal decongestant and lubricant. The tube was pushed gently and blindly into the hypopharynx. The mouth and nose of the patient were sealed by hand and positive pressure ventilation was possible with 100% O2 with good oxygen saturation during that period of time. Once the patient was stable and well sedated, a rigid bronchoscope was introduced by the otolaryngologist showing extensive subglottic and epiglottic edema, and a mass effect from the abscess, contributing to the airway compromise. The airway was secured with an ETT tube by the otolaryngologist.This video will show a simulation of the technique on a patient undergoing general anesthesia for dental restorations.

  18. Teaching Difficult Topics with Primary Sources

    Science.gov (United States)

    Potter, Lee Ann

    2011-01-01

    "Difficult" or "challenging" topics to teach include racism, violence, genocide, bullying, gangs, abuse (physical, emotional, and substance), slavery, suffering, hatred, terrorism, war, disease, loss, addiction, and more. But by confronting them with students, in the safety of a classroom through thoughtfully constructed lessons (ones that take…

  19. Difficult childhood asthma: management and future.

    Science.gov (United States)

    Tillie-Leblond, Isabelle; Deschildre, Antoine; Gosset, Philippe; de Blic, Jacques

    2012-09-01

    Diagnosis and management of severe asthma implies the definition of different entities, that is, difficult asthma and refractory severe asthma, but also the different phenotypes included in the term refractory severe asthma. A complete evaluation by a physician expert in asthma is necessary, adapted for each child. Identification of mechanisms involved in different phenotypes in refractory severe asthma may improve the therapeutic approach. The quality of care and monitoring of children with severe asthma is as important as the prescription drug, and is also crucial for differentiating between severe asthma and difficult asthma, whereby expertise is required.

  20. Medicare program; conditions for payment of power mobility devices, including power wheelchairs and power-operated vehicles. Final rule.

    Science.gov (United States)

    2006-04-05

    This final rule conforms our regulations to section 302(a)(2)(E)(iv) of the Medicare Prescription Drug, Improvement, and Modernization Act of 2003. This rule defines the term power mobility devices (PMDs) as power wheelchairs and power operated vehicles (POVs or scooters). It sets forth revised conditions for Medicare payment of PMDs and defines who may prescribe PMDs. This rule also requires a face-to-face examination of the beneficiary by the physician or treating practitioner, a written prescription, and receipt of pertinent parts of the medical record by the supplier within 45 days after the face-to-face examination that the durable medical equipment suppliers maintain in their records and make available to CMS or its agents upon request. Finally, this rule discusses CMS' policy on documentation that may be requested by CMS or its agents to support a Medicare claim for payment, as well as the elimination of the Certificate of Medical Necessity (CMN) for PMDs.

  1. Northern Adriatic Sea hydrographic conditions from October 2002 – September 2003, including the climatic heating anomaly of summer 2003

    Directory of Open Access Journals (Sweden)

    Nastjenjka SUPIĆ

    2006-12-01

    Full Text Available CTD data were collected during 38 cruises in the northeastern Adriatic from October 2002 to September 2003 and were analyzed in the context of long-term variability (from data collected over a period of 38 years. A prognostic statistical model was created to fit the long-term data and predicted values were compared to those of the in situ CTD measurements. As with air temperatures, values attained by the sea in summer 2003 far exceeded those expected by predictive models and were induced by very large heat input from the atmosphere. In conditions of very low regional freshwater input and intrusions of more saline water masses from the south, salinity values in the spring/summer period lay far outside typical salinity values for the area.

  2. Current Trends in the Management of Difficult Urinary Catheterizations

    Directory of Open Access Journals (Sweden)

    Paul A Willette

    2012-12-01

    Full Text Available Routine urinary catheter placement may cause trauma and poses a risk of infection. Male catheterization, in particular, can be difficult, especially in patients with enlarged prostate glands or other potentially obstructive conditions in the lower urinary tract. Solutions to problematic urinary catheterization are not well known and when difficult catheterization occurs, the risk of failed catheterization and concomitant complications increase. Repeated and unsuccessful attempts at urinary catheterization induce stress and pain for the patient, injury to the urethra, potential urethral stricture requiring surgical reconstruction, and problematic subsequent catheterization. Improper insertion of catheters also can significantly increase healthcare costs due to added days of hospitalization, increased interventions, and increased complexity of follow-up evaluations. Improved techniques for catheter placement are essential for all healthcare personnel involved in the management of the patient with acute urinary retention, including attending emergency physicians who often are the first physicians to encounter such patients. Best practice methods for blind catheter placement are summarized in this review. In addition, for progressive clinical practice, an algorithm for the management of difficult urinary catheterizations that incorporates technology enabling direct visualization of the urethra during catheter insertion is presented. This algorithm will aid healthcare personnel in decision making and has the potential to improve quality of care of patients.

  3. Tough Choices in Difficult Times.

    Science.gov (United States)

    Scheer, Sage Ann

    2002-01-01

    Key areas school districts have used in making the decision to purchase technology applications include: what the district hopes to achieve by purchasing the system; how the proposed system will support the district's vision and help achieve the strategic plan; what the effect of the proposed solution will be on staffing; and what type of timeline…

  4. Difficult airway and difficult intubation in postintubation tracheal stenosis: a case report and literature review

    Directory of Open Access Journals (Sweden)

    Zarogoulidis P

    2012-06-01

    Full Text Available Paul Zarogoulidis,1 Theodoros Kontakiotis,1 Kosmas Tsakiridis,2 Michael Karanikas,3 Christos Simoglou,4 Konstantinos Porpodis,1 Alexandros Mitrakas,3 Agisilaos Esebidis, 3 Maria Konoglou,5 Nikolaos Katsikogiannis,6 Vasilis Zervas,1 Christina Aggelopoulou,7 Dimitrios Mikroulis,4 Konstantinos Zarogoulidis11Pulmonary Department, "G Papanikolaou" General Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece; 2Cardiothoracic Department, Saint Luke Private Hospital, Thessaloniki, Greece; 31st University Surgery Department, 4Cardiothoracic Department, University General Hospital of Alexandroupolis, Democritus University of Thrace, Alexandroupolis, Greece; 51st Pulmonary Department, "G Papanikolaou" General Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece; 6Surgery Department (NHS, 7Neurology Department (NHS, University General Hospital of Alexandroupolis, Democritus University of Thrace, Alexandroupolis, GreeceAbstract: Management of a "difficult airway" remains one of the most relevant and challenging tasks for anesthesiologists and pulmonary physicians. Several conditions, such as inflammation, trauma, tumor, and immunologic and metabolic diseases, are considered responsible for the difficult intubation of a critically ill patient. In this case report we present the case of a 46-year-old male with postintubation tracheal stenosis. We will focus on the method of intubation used, since the patient had a "difficult airway" and had to be intubated immediately because he was in a life-threatening situation. Although technology is of utter importance, clinical examination and history-taking remain invaluable for the appropriate evaluation of the critically ill patient in everyday medical life. Every physician who will be required to perform intubation has to be familiar with the evaluation of the difficult airway and, in the event of the unanticipated difficult airway, to be able to use a wide variety of tools and

  5. Guide for Operational Configuration Management Program including the adjunct programs of design reconstitution and material condition and aging management. Part 2

    Energy Technology Data Exchange (ETDEWEB)

    1993-11-01

    This standard presents program criteria and implementation guidance for an operational configuration management program for DOE nuclear and non-nuclear facilities. This Part 2 includes chapters on implementation guidance for operational configuration management, implementation guidance for design reconstitution, and implementation guidance for material condition and aging management. Appendices are included on design control, examples of design information, conduct of walkdowns, and content of design information summaries.

  6. Some difficult choices in cytogenetics.

    Science.gov (United States)

    Swansbury, John

    2003-01-01

    In making a selection of features of these technologies, it is inevitable that some will be omitted that other cytogeneticists feel should have been included. The author could probably justifiably be accused of bias. However, based on experience in a laboratory that has used almost every type of assay mentioned in this chapter, the following opinions are offered about their current value in providing a routine malignancy cytogenetics service: 1. The foundation is still a conventional cytogenetic study, preferably with the use of an automated karyotyping system. 2. Added to this, there should be the capability of performing FISH studies using chromosome paints and gene-specific probes. Cytogenetics and FISH form a powerful partnership when backed by experienced cytogeneticists. MFISH or SKY are also useful if the laboratory can afford the considerable extra expense. CGH and fibre FISH are generally better suited to research projects, and at present have few applications in a routine diagnostics service. 3. At present, molecular methods such as RT-PCR mostly tend to produce results that have a greater need of confirmation by other techniques before they can be used for clinical management.

  7. Clostridium difficile phages: still difficult?

    Directory of Open Access Journals (Sweden)

    Katherine Rose Hargreaves

    2014-04-01

    Full Text Available Phages that infect Clostridium difficile were first isolated for typing purposes in the 1980s, but their use was short lived. However, the rise of C. difficile epidemics over the last decade has triggered a resurgence of interest in using phages to combat this pathogen. Phage therapy is an attractive treatment option for C. difficile infection, however developing suitable phages is challenging. In this review we summarise the difficulties faced by researchers in this field, and we discuss the solutions and strategies used for the development of C. difficile phages for use as novel therapeutics.Epidemiological data has highlighted the diversity and distribution of C. difficile, and shown that novel strains continue to emerge in clinical settings. In parallel with epidemiological studies, advances in molecular biology have bolstered our understanding of C. difficile biology, and our knowledge of phage-host interactions in other bacterial species. These three fields of biology have therefore paved the way for future work on C. difficile phages to progress and develop. Benefits of using C. difficile phages as therapeutic agents include the fact that they have highly specific interactions with their bacterial hosts. Studies also show that they can reduce bacterial numbers in both in vitro and in vivo systems. Genetic analysis has revealed the genomic diversity among these phages and provided an insight into their taxonomy and evolution.No strictly virulent C. difficile phages have been reported and this contributes to the difficulties with their therapeutic exploitation. Although treatment approaches using the phage-encoded endolysin protein have been explored, the benefits of using whole-phages are such that they remain a major research focus. Whilst we don’t envisage working with C. difficile phages will be problem free, sufficient study should inform future strategies to facilitate their development to combat this problematic pathogen.

  8. Quality of life, reproduction and sexuality after stem cell transplantation with partially T-cell-depleted grafts and after conditioning with a regimen including total body irradiation.

    NARCIS (Netherlands)

    Claessens, J.J.M.; Beerendonk, C.C.M.; Schattenberg, A.V.M.B.

    2006-01-01

    Thirty-four men and 36 women (median age 43 and 45 years, respectively) underwent stem cell transplantation (SCT) for acute leukaemia in first complete remission or chronic myelogenous leukaemia in first chronic phase between 1981 and 2001 from HLA-identical siblings. The conditioning regimen includ

  9. Foreign body aspiration masquerading as difficult asthma

    Directory of Open Access Journals (Sweden)

    Rai S

    2007-01-01

    Full Text Available It is important to assess patients of difficult/therapy resistant asthma carefully in order to identify whether there are any correctable factors that may contribute to their poor control. It is critical to make a diagnosis of asthma and to exclude other airway diseases. A 65-years-old lady presented with repeated acute episodes of dyspnoea and wheezing. She was on regular medication for bronchial asthma for 18 years. There was no history of foreign body aspiration or loss of consciousness. Her chest radiograph was normal. She showed poor response to corticosteroids and bronchodilators. Fibreoptic bronchoscopy (FOB showed intracordal cyst of the left vocal cord and 1cm size irregular piece of betel nut in right main bronchus, which was removed endoscopically with the help of dormia basket, following which her condition improved and asthma was controlled on inhaled bronchodilators.

  10. Biomarkers in the Management of Difficult Asthma.

    Science.gov (United States)

    Schleich, Florence; Demarche, Sophie; Louis, Renaud

    2016-01-01

    Difficult asthma is a heterogeneous disease of the airways including various types of bronchial inflammation and various degrees of airway remodeling. Therapeutic response of severe asthmatics can be predicted by the use of biomarkers of Type2-high or Type2-low inflammation. Based on sputum cell analysis, four inflammatory phenotypes have been described. As induced sputum is timeconsuming and expensive technique, surrogate biomarkers are useful in clinical practice. Eosinophilic phenotype is likely to reflect ongoing adaptive immunity in response to allergen. Several biomarkers of eosinophilic asthma are easily available in clinical practice (blood eosinophils, serum IgE, exhaled nitric oxyde, serum periostin). Neutrophilic asthma is thought to reflect innate immune system activation in response to pollutants or infectious agents while paucigranulocytic asthma is thought to be not inflammatory and characterized by smooth muscle dysfunction. We currently lack of user-friendly biomarkers of neutrophilic asthma and airway remodeling. In this review, we summarize the biomarkers available for the management of difficult asthma.

  11. Validated Questionnaires heighten detection of Difficult Asthma Comorbidities.

    Science.gov (United States)

    Radhakrishna, Naghmeh; Tay, Tunn Ren; Hore-Lacy, Fiona; Stirling, Robert; Hoy, R; Dabscheck, Eli; Hew, Mark

    2016-10-07

    Objective Multiple extra-pulmonary comorbidities contribute to difficult asthma, but their diagnosis can be challenging and time consuming. Previous data on comorbidity detection have focused on clinical assessment, which may miss certain conditions. We aimed to locate relevant validated screening questionnaires to identify extra-pulmonary comorbidities that contribute to difficult asthma, and evaluate their performance during a difficult asthma evaluation. Methods MEDLINE was searched to identify key extra-pulmonary comorbidities that contribute to difficult asthma. Screening questionnaires were chosen based on ease of use, presence of a cut off score, and adequate validation to help systematically identify comorbidities. In a consecutive series of 86 patients referred for systematic evaluation of difficult asthma, questionnaires were administered prior to clinical consultation. Results Six difficult asthma comorbidities and corresponding screening questionnaires were found: sinonasal disease (allergic rhinitis and chronic rhinosinusitis), vocal cord dysfunction, dysfunctional breathing, obstructive sleep apnea, anxiety and depression, and gastro-oesophageal reflux disease. When the questionnaires were added to the referring clinician's impression, the detection of all six comorbidities was significantly enhanced. The average time for questionnaire administration was approximately 40 minutes. Conclusions The use of validated screening questionnaires heightens detection of comorbidities in difficult asthma. The availability of data from a battery of questionnaires prior to consultation can save time and allow clinicians to systematically assess difficult asthma patients and to focus on areas of particular concern. Such an approach would ensure that all contributing comorbidities have been addressed before significant treatment escalation is considered.

  12. Management of the difficult airway in children. A case report

    Directory of Open Access Journals (Sweden)

    Magaly Álvarez Bárzaga

    2011-03-01

    Full Text Available The anesthesiologist plays a unique role in the health care of all patients who will undergo a surgical procedure. In this sense, he is a key factor in the appropriate and timely management of the airway. There are special situations that condition a difficult airway and can have a profound impact on anesthetic morbidity and mortality. These risks increases in the case of children, that is why the case of a pediatric patient with a difficult airway caused by limitation of mouth opening, scheduled for elective surgery in order to treat this condition in the Pediatric University Hospital ¨Paquito González Cueto " in Cienfuegos, is presented.

  13. Single particle ICP-MS as a tool for determining the stability of silver nanoparticles in aquatic matrixes under various environmental conditions, including treatment by ozonation.

    Science.gov (United States)

    Telgmann, Lena; Nguyen, Michael Thanh Khoa; Shen, Li; Yargeau, Viviane; Hintelmann, Holger; Metcalfe, Chris D

    2016-07-01

    Silver nanoparticles (AgNPs) are used in a large number of consumer products due to their antimicrobial and antifungal properties, and these materials may be discharged into municipal wastewater. Wastewater treatment, including advanced oxidation processes (AOPs), may modify the forms of silver in wastewater before they are discharged into surface waters. In addition, little is known about the changes in AgNPs that occur in natural waters under different environmental conditions. In this project, we utilized single particle ICP-MS (spICP-MS) and dynamic light scattering (DLS) analytical techniques to evaluate changes in the number and size of AgNPs in laboratory experiments with milliQ water under different environmental conditions, as well as during ozonation. Changes in the number and size of AgNPs determined by spICP-MS were evidence of altered stability of the nanoparticles. Increased rates of dissolution occurred under extremes of pH. Lower temperature decreased the rate of dissolution of AgNP relative to the dissolution in treatments at room temperature. The addition of chloride resulted in the loss of AgNPs from suspension due to agglomeration and precipitation. Ozonation led to a rapid decline in the number and size of AgNPs, as indicated by both spICP-MS and DLS analysis. An increase in the concentration of dissolved silver in the ozone treatments was evidence that changes in particle size were a result of oxidative dissolution of AgNPs to silver ion. Graphical abstract Single particle ICP-MS is used to evaluate dissolution of silver nanoparticles under different environmental conditions, including water treatment by ozonation.

  14. Why behavior change is difficult to sustain.

    Science.gov (United States)

    Bouton, Mark E

    2014-11-01

    Unhealthy behavior is responsible for much human disease, and a common goal of contemporary preventive medicine is therefore to encourage behavior change. However, while behavior change often seems easy in the short run, it can be difficult to sustain. This article provides a selective review of research from the basic learning and behavior laboratory that provides some insight into why. The research suggests that methods used to create behavior change (including extinction, counterconditioning, punishment, reinforcement of alternative behavior, and abstinence reinforcement) tend to inhibit, rather than erase, the original behavior. Importantly, the inhibition, and thus behavior change more generally, is often specific to the "context" in which it is learned. In support of this view, the article discusses a number of lapse and relapse phenomena that occur after behavior has been changed (renewal, spontaneous recovery, reinstatement, rapid reacquisition, and resurgence). The findings suggest that changing a behavior can be an inherently unstable and unsteady process; frequent lapses should be expected. In the long run, behavior-change therapies might benefit from paying attention to the context in which behavior change occurs.

  15. Treatment of psychological factors in a child with difficult asthma: a case report.

    Science.gov (United States)

    Anbar, Ran D; Sachdeva, Shagun

    2011-07-01

    Difficult asthma is defined as the persistence of asthma symptoms, abnormal pulmonary function showing airway obstruction, and continued requirement for short-acting bronchodilator therapy, despite adequate treatment with inhaled corticosteroids. It calls for a thorough evaluation of the patient to look into alternate and complicating diagnoses. The authors report a case of a 9-year-old patient with difficult asthma who failed to respond to conventional therapy. Although it was recognized that he had a number of potential medical complicating factors including allergies, chronic sinusitis, and gastroesophageal reflux, a psychological intervention using hypnosis ultimately appeared to help alleviate his symptoms completely. Thus, psychological evaluation and intervention should be considered early in the course of management of a patient with difficult asthma, because it may help avoid time-consuming and expensive investigations of potential complicating factors, and it may yield rapid improvement in the patient's clinical condition.

  16. Medical Students' Personal Determinants of Overcoming Strategies in Difficult Situations

    Directory of Open Access Journals (Sweden)

    Veretelnikova Yu.Ya.

    2013-03-01

    Full Text Available Goal of the research was to study conditionality of overcoming strategies in difficult situations of social interaction by personal representations of attitude to others among medical students. Material and methods. 134 first-year students of Saratov State Medical University n.a. V. I. Razumovsky took part in the comparative diagnostic study. Results. Comparison of average indices of various strategies evidence in coping behaviour allowed revealing statistically significant dependence of coping behaviour modi in difficult situations of social interaction upon types of personal representations of attitude toward others and gender features of forming effective strategies of coping behaviour among medical students. Conclusion. Correlation between coping behaviour modi in difficult situations of social interaction and typology of personal representations of attitudes toward others among medical students was marked.

  17. Difficult asthma in adults: recognition and approaches to management.

    Science.gov (United States)

    Harrison, B D W

    2005-09-01

    Difficult asthma must be distinguished from severe asthma. It is then important in patients with suspected difficult asthma to ensure that the diagnosis is correct, and that if the patient has asthma that the attributed symptoms are indeed all genuinely due to the asthma and not to coexisting physical or psychogenic respiratory conditions. It is also important to be alert when there is discordance between symptoms and objective lung function in order to recognize both poor perceivers and over-reactors. Difficult asthma can occur in patients with objectively mild, moderate or severe disease, but the consequences are most dramatic in patients with severe asthma. Asthma may be difficult for the patient, for the clinician or both because of disease factors, doctor or nurse therapist factors, and/or patient factors. Investigation requires access to the full range of respiratory, imaging and allergy tests. It also requires a multidisciplinary approach involving ear, nose and throat specialists and speech therapists, and access to psychiatric and psychological assessment and therapies. Poor compliance is associated with significantly poorer asthma and asthma-related health outcomes. Poor compliance can be recognized in two-thirds of such patients by their not attending scheduled appointments. Poor compliance is significantly associated with anxiety, social deprivation and adverse family circumstances, and these characteristics and adversities probably contribute to the poorly compliant behaviour. In difficult asthma it is important to identify and manage the condition causing the symptoms rather than prescribing more and more asthma therapy. Recognizing psychosocial adversity is essential. A structured approach is essential. There remains a small number of patients with genuine steroid-resistant asthma, some with predominately neutrophilic rather than eosinophilic airway inflammation, and others for whom the secondary gain of continuing symptoms is overwhelming. There is

  18. Qualitative analysis of unanticipated difficult airway management

    DEFF Research Database (Denmark)

    Rosenstock, C; Hansen, E G; Kristensen, M S;

    2006-01-01

    Unanticipated difficult airway management (DAM) is a major challenge for the anaesthesiologist and is associated with a risk of severe patient damage. We analysed 24 cases of unanticipated DAM for actual case management and anaesthesiologists knowledge, technical and non-technical skills. Anaesth...

  19. [Partnership around difficult teenagers in Brest].

    Science.gov (United States)

    Saint-André, Stéphane; Botbol, Michel

    2013-01-01

    The issues surrounding difficult teenagers results in professionals formalising a partnership. Certain areas of focus are identified such as getting to know each other better in order to understand each other better, working in a "common language", understanding professional identities, or embracing long term partnership. Pressure to assess and rationalise spending, as well as political challenges, must be taken into consideration.

  20. Engaging Men in Difficult Dialogues about Privilege

    Science.gov (United States)

    Loschiavo, Chris; Miller, David S.; Davies, Jon

    2007-01-01

    Male privilege is one aspect of social inequality that underlies much of the oppression and violence that occurs on college campuses. Mad Skills, a program addressing power and privilege with college men, is described along with general recommendations about how to engage men in difficult dialogues. The PIE Model is used to describe defensive…

  1. Polishing Difficult-To-Reach Cavities

    Science.gov (United States)

    Malinzak, R. Michael; Booth, Gary N.

    1990-01-01

    Springy abrasive tool used to finish surfaces of narrow cavities made by electrical-discharge machining. Robot arm moves vibrator around perimeters of cavities, polishing walls of cavities as it does so. Tool needed because such cavities inaccessible or at least difficult to reach with most surface-finishing tools.

  2. Qualitative analysis of unanticipated difficult airway management

    DEFF Research Database (Denmark)

    Rosenstock, C; Hansen, E G; Kristensen, M S

    2006-01-01

    Unanticipated difficult airway management (DAM) is a major challenge for the anaesthesiologist and is associated with a risk of severe patient damage. We analysed 24 cases of unanticipated DAM for actual case management and anaesthesiologists knowledge, technical and non-technical skills...

  3. The difficult encounter between inspector and farmer

    DEFF Research Database (Denmark)

    Anneberg, Inger; Sørensen, Jan Tind; Vaarst, Mette

    2012-01-01

    When the inspector drives into the farmyard and asks to see the animal barns to inspect the welfare of the animals, a tense situation may arise because inspections transcend limits and are complex and difficult for many farmers to relate to. A new research project is examining the interaction...... between authorities and farmers....

  4. Questions That Science Teachers Find Difficult (II).

    Science.gov (United States)

    Goodwin, Alan

    2003-01-01

    Presents some questions that science teachers find difficult. Focuses on three further questions relating to "simple" everyday situations that are normally explained in terms of the kinetic theory of matter. Identifies looking at the difference between chemical and physical changes as the most problematic question. (Author/YDS)

  5. Styrene-spaced copolymers including anthraquinone and β-O-4 lignin model units: synthesis, characterization and reactivity under alkaline pulping conditions.

    Science.gov (United States)

    Megiatto, Jackson D; Cazeils, Emmanuel; Ham-Pichavant, Frédérique; Grelier, Stéphane; Gardrat, Christian; Castellan, Alain

    2012-05-14

    A series of random copoly(styrene)s has been synthesized via radical polymerization of functionalized anthraquinone (AQ) and β-O-4 lignin model monomers. The copolymers were designed to have a different number of styrene spacer groups between the AQ and β-O-4 lignin side chains aiming at investigating the distance effects on AQ/β-O-4 electron transfer mechanisms. A detailed molecular characterization, including techniques such as size exclusion chromatography, MALDI-TOF mass spectrometry, and (1)H, (13)C, (31)P NMR and UV-vis spectroscopies, afforded quantitative information about the composition of the copolymers as well as the average distribution of the AQ and β-O-4 groups in the macromolecular structures. TGA and DSC thermal analysis have indicated that the copolymers were thermally stable under regular pulping conditions, revealing the inertness of the styrene polymer backbone in the investigation of electron transfer mechanisms. Alkaline pulping experiments showed that close contact between the redox active side chains in the copolymers was fundamental for an efficient degradation of the β-O-4 lignin model units, highlighting the importance of electron transfer reactions in the lignin degradation mechanisms catalyzed by AQ. In the absence of glucose, AQ units oxidized phenolic β-O-4 lignin model parts, mainly by electron transfer leading to vanillin as major product. By contrast, in presence of glucose, anthrahydroquinone units (formed by reduction of AQ) reduced the quinone-methide units (issued by dehydration of phenolic β-O-4 lignin model part) mainly by electron transfer leading to guaiacol as major product. Both processes were distance dependent.

  6. Protection of mineral deposits - a way towards difficult compromises

    Science.gov (United States)

    Radwanek-Bąk, Barbara; Nieć, Marek

    2014-05-01

    Mineral deposits are non-renewable natural resources. Their protection and reasonable exploitation are crucial requests resulting from sustainable development principles. Those are also fundamental issues in frame of the intergeneration justice and fairness concept. Protection of mineral resources should be based on interrelated activities: maintaining the possibility of economic use of the identified mineral resources, reduced consumption of mineral resources and ensuring satisfactory results of new prospecting and development of innovative technologies for the mineral resources base. The main problem with guarantee to the use of mineral resources is the accessibility to sites with documented deposits and prospective areas of their occurrence. Often, this contradicts with the interests of residents, planners and needs of the biotic environment protection, thus is often a source of conflicts. Legislative regulations are necessary to mitigate such arguable matters. SWOT analysis carried out with respect to introducing such legal regulations serves to identify the sources of conflicts and difficulties associated with their solution. Consensus reaching is a difficult task, so all decision makers are required to show their mutual understanding and willingness to achieve the goals taking into consideration all benefits for the population (including future generations). Foundations for finding the middle ground are: making the communities aware of their demands on minerals and of indispensable conditions for satisfying these demands; providing complete and accessible information; factual, non-emotional negotiations between decision makers and the public.

  7. conditions

    Directory of Open Access Journals (Sweden)

    M. Venkatesulu

    1996-01-01

    Full Text Available Solutions of initial value problems associated with a pair of ordinary differential systems (L1,L2 defined on two adjacent intervals I1 and I2 and satisfying certain interface-spatial conditions at the common end (interface point are studied.

  8. Difficult airway equipment: a survey of standards across metropolitan Perth.

    Science.gov (United States)

    Alakeson, N; Flett, T; Hunt, V; Ramgolam, A; Reynolds, W; Hartley, K; Hegarty, M; von Ungern-Sternberg, B S

    2014-09-01

    The importance of appropriate equipment to manage the difficult airway has been highlighted by the publication of the Australian and New Zealand College of Anaesthetists (ANZCA) guidelines in 2012. We set out to audit compliance with these guidelines in all public and private sites providing general anaesthesia in metropolitan Perth. Public and private health care websites identified 39 sites of which 37 were studied. Institutional and ethics approval was obtained. A tick-box design audit tool, based on the ANZCA guidelines, was used to collect information regarding the dedicated difficult airway container (DDAC) at each site. As recommended in the guidelines, only equipment within the DDAC was considered. Further data about each site, including the number of theatre suites, satellite anaesthetic areas, use of capnography and categories of patients treated (adult, obstetric and paediatric) were collected. An adult DDAC was found at 92% of all sites, but none of the sites had all the essential equipment listed in the ANZCA guidelines. There was limited provision of adult difficult airway equipment within private sites compared to public, and less provision of paediatric difficult airway equipment across all sites treating paediatric patients in metropolitan Perth. Capnography was available in 76% of post anaesthesia care units and used regularly in 27%. Adherence to the ANZCA guidelines regarding the DDAC could be improved. Standardised equipment across a metropolitan region would be of value in the management of the difficult airway.

  9. Space Situational Awareness: Difficult, Expensive and Necessary

    Science.gov (United States)

    2014-12-01

    Senior Leader Perspective November–December 2014 Air & Space Power Journal | 6 Space Situational Awareness Difficult, Expensive—and Necessary Dr...authors thank Gen William Shelton for his thoughtful and insightful comments. Disclaimer: The views and opinions expressed or implied in the Journal ...permission. If it is reproduced, the Air and Space Power Journal requests a courtesy line. Report Documentation Page Form ApprovedOMB No. 0704-0188

  10. Difficult treatment decisions in autoimmune hepatitis

    Institute of Scientific and Technical Information of China (English)

    Albert; J; Czaja

    2010-01-01

    Treatment decisions in autoimmune hepatitis are complicated by the diversity of its clinical presentations,uncertainties about its natural history,evolving opinions regarding treatment end points,varied nature of refractory disease,and plethora of alternative immu-nosuppressive agents. The goals of this article are to review the difficult treatment decisions and to provide the bases for making sound therapeutic judgments. The English literature on the treatment problems in au-toimmune hepatitis were identif...

  11. Difficult ("heartsink" patients and clinical communication difficulties

    Directory of Open Access Journals (Sweden)

    Faustino R Pérez-López

    2010-12-01

    Full Text Available Faustino R Pérez-LópezDepartment of Obstetrics and Gynecology, Hospital Clínico de Zaragoza, Facultad de Medicina, Universidad de Zaragoza, Zaragoza, SpainAbstract: Managing the difficult patient requires a set of skills or strategies oriented at improving the physician–patient relationship and avoiding conflictive situations. There are different types of difficult patients who should be precisely identified for their management. These patients seek appropriate medical care which is not always provided. However, some may have unrecognized pathological illnesses, especially personality or psychiatry disorders. Clinical communications may be altered by professional and situational factors. In some circumstances, clinical symptoms are medically unexplainable or poorly defined as part of a disease or syndrome. Organic disease should be ruled out before patients are classified as having a somatoform disorder. Diagnosis may be delayed when symptoms are not properly evaluated therefore causing serious health consequences. Clinical competence, empathy, and high quality communication is required to succeed in difficult clinical encounters.Keywords: physician–patient communication, barriers to communication, expert patient

  12. In their words: how television and visual media can raise awareness of dementia and other health conditions that carry stigma, including disabilities.

    OpenAIRE

    Heward, Michelle; Palfreman-Kay, James; Innes, Anthea

    2015-01-01

    This article explores the mutual contribution of television and disability studies, focusing on the role of television and visual media in raising awareness and challenging gaps in understanding of dementia, a health condition that carries stigma and is framed as a disability. The Living Well with Dementia, Dorset: Video project, demonstrates the duality of how creating and disseminating a video featuring people with dementia and carers talking about what it means to live well with the condit...

  13. Mind wandering while reading easy and difficult texts.

    Science.gov (United States)

    Feng, Shi; D'Mello, Sidney; Graesser, Arthur C

    2013-06-01

    Mind wandering is a phenomenon in which attention drifts away from the primary task to task-unrelated thoughts. Previous studies have used self-report methods to measure the frequency of mind wandering and its effects on task performance. Many of these studies have investigated mind wandering in simple perceptual and memory tasks, such as recognition memory, sustained attention, and choice reaction time tasks. Manipulations of task difficulty have revealed that mind wandering occurs more frequently in easy than in difficult conditions, but that it has a greater negative impact on performance in the difficult conditions. The goal of this study was to examine the relation between mind wandering and task difficulty in a high-level cognitive task, namely reading comprehension of standardized texts. We hypothesized that reading comprehension may yield a different relation between mind wandering and task difficulty than has been observed previously. Participants read easy or difficult versions of eight passages and then answered comprehension questions after reading each of the passages. Mind wandering was reported using the probe-caught method from several previous studies. In contrast to the previous results, but consistent with our hypothesis, mind wandering occurred more frequently when participants read difficult rather than easy texts. However, mind wandering had a more negative influence on comprehension for the difficult texts, which is consistent with the previous data. The results are interpreted from the perspectives of the executive-resources and control-failure theories of mind wandering, as well as with regard to situation models of text comprehension.

  14. Braving difficult choices alone: children's and adolescents' medical decision making.

    Directory of Open Access Journals (Sweden)

    Azzurra Ruggeri

    Full Text Available OBJECTIVE: What role should minors play in making medical decisions? The authors examined children's and adolescents' desire to be involved in serious medical decisions and the emotional consequences associated with them. METHODS: Sixty-three children and 76 adolescents were presented with a cover story about a difficult medical choice. Participants were tested in one of four conditions: (1 own informed choice; (2 informed parents' choice to amputate; (3 informed parents' choice to continue a treatment; and (4 uninformed parents' choice to amputate. In a questionnaire, participants were asked about their choices, preference for autonomy, confidence, and emotional reactions when faced with a difficult hypothetical medical choice. RESULTS: Children and adolescents made different choices and participants, especially adolescents, preferred to make the difficult choice themselves, rather than having a parent make it. Children expressed fewer negative emotions than adolescents. Providing information about the alternatives did not affect participants' responses. CONCLUSIONS: Minors, especially adolescents, want to be responsible for their own medical decisions, even when the choice is a difficult one. For the adolescents, results suggest that the decision to be made, instead of the agent making the decision, is the main element influencing their emotional responses and decision confidence. For children, results suggest that they might be less able than adolescents to project how they would feel. The results, overall, draw attention to the need to further investigate how we can better involve minors in the medical decision-making process.

  15. [Difficult teenagers: the challenges of interdisciplinarity].

    Science.gov (United States)

    Saint-Andrté, Stéphane; Botbola, Michel

    2013-01-01

    The adolescents in great distress, because of ruptures in the course of their lives and of their chaotic family environment, need educational and social actions. The consensual point of view is that responding to the needs of the so called "difficult adolescents" implies the involvement of educational, therapeutic and judicial services. Nevertheless, the usual tendency to categorize the users with the idea it will permit to guide them to the appropriate skill field and the transgressive characteristic of these adolescents' behaviours lead all these services to reject them and send them to the two other services.

  16. Unexpected difficult intubation due to subglottic ring

    Directory of Open Access Journals (Sweden)

    Abdulkadir Atım

    2010-03-01

    Full Text Available Airway damages encountered during endotracheal intubationor tracheostomy may cause some complicationssuch as severe dyspnea. Upper airway diagnostic endoscopywas planned to find the etiology of effort dyspnea ina 5 years old girl who had endotracheal intubation beenperformed during newborn period. Her ASA score was 1,and Mallampati score for preoperative airway evaluationwas 1. Physical examination revealed neither dyspneanor stridor while the patient was not exerting effort. Herchest radiograms were normal. She had no history of previoussurgical or anesthetical intervention. In this reportwe presented a difficult intubation during the endoscopicexamination of upper airway in a patient who had dyspneawhile exerting effort.

  17. Honey bees selectively avoid difficult choices.

    Science.gov (United States)

    Perry, Clint J; Barron, Andrew B

    2013-11-19

    Human decision-making strategies are strongly influenced by an awareness of certainty or uncertainty (a form of metacognition) to increase the chances of making a right choice. Humans seek more information and defer choosing when they realize they have insufficient information to make an accurate decision, but whether animals are aware of uncertainty is currently highly contentious. To explore this issue, we examined how honey bees (Apis mellifera) responded to a visual discrimination task that varied in difficulty between trials. Free-flying bees were rewarded for a correct choice, punished for an incorrect choice, or could avoid choosing by exiting the trial (opting out). Bees opted out more often on difficult trials, and opting out improved their proportion of successful trials. Bees could also transfer the concept of opting out to a novel task. Our data show that bees selectively avoid difficult tasks they lack the information to solve. This finding has been considered as evidence that nonhuman animals can assess the certainty of a predicted outcome, and bees' performance was comparable to that of primates in a similar paradigm. We discuss whether these behavioral results prove bees react to uncertainty or whether associative mechanisms can explain such findings. To better frame metacognition as an issue for neurobiological investigation, we propose a neurobiological hypothesis of uncertainty monitoring based on the known circuitry of the honey bee brain.

  18. Optimising the management of patients with difficult asthma.

    Science.gov (United States)

    Palmer, Evelyn; Higgins, Bernard

    2015-11-01

    Asthma affects 5.4 million people in the UK, around 1 in 12 of the population. Between 5 and 10% of asthma (depending on the definition used) is categorised as difficult asthma, a term which generally refers to patients who continue to experience symptoms and frequent exacerbations despite the prescription of high-dose asthma therapy. Difficult asthma is an indication for specialist review by an appropriate respiratory physician, but close liaison between primary, secondary and tertiary care is critical and it is therefore important that primary care health professionals should be aware of the principles of management. One of the most important questions to ask is whether the individual with difficult asthma is taking their treatment Identifying this, however, is not easy. GPs could assess prescription uptake, looking for low use of preventers and excess use of short-acting bronchodilators. Newer means of assessing adherence have been developed. Inhaler devices that can monitor completion and timing of actuations have been produced. Meters that measure FeNO are available. A recent UK study found that 12 out of 100 patients referred for difficult asthma did not have reversible airflow obstruction or a history suggestive of asthma. Diagnoses included COPD, cystic fibrosis, cardiomyopathy, respiratory muscle dysfunction and severe anxiety with vocal cord dysfunction.

  19. Difficult weaning in delayed onset diaphragmatic hernia

    Directory of Open Access Journals (Sweden)

    Ahmed Syed

    2009-01-01

    Full Text Available Diaphragmatic injuries are relatively rare and result from either blunt or penetrating trauma. Regardless of the mechanism, diagnosis is often missed and high index of suspicion is vital. The clinical signs associated with a diaphragmatic hernia can range from no outward signs to immediately life-threatening respiratory compromise. Establishing the clinical diagnosis of diaphragmatic injuries (DI can be challenging as it is often clinically occult. Accurate diagnosis is critical since missed DI may result in grave sequelae due to herniation and strangulation of displaced intra-abdominal organs. We present a case of polytrauma with rib fracture and delayed appearance of diaphragmatic hernia manifesting as difficult weaning from ventilatory support.

  20. Effective Climate Communication with Difficult Audiences

    Science.gov (United States)

    Denning, S.

    2015-12-01

    Climate communication is often fraught with ideological baggage ("noise") that makes it very difficult to connect to audiences. In these cases, it is helpful to use "best practices" known from other fields of communication. Engaging audiences with authenticity, using plain language, respecting cultural and political differences, and a sprinkling of humor can go a long way toward establishing a connection. It's important to avoid common but polarizing tropes from popular media, and often quite helpful to frame climate issues in novel or unexpected ways that cut across entrenched political discourse. Emerging social science research Beyond ideology, climate change is Simple, Serious, and Solvable. Effective communication of these three key ideas can succeed when the science argument is carefully framed to avoid attack of the audience's ethical identity. Simple arguments from common sense and everyday experience are more successful than data. Serious consequences to values that resonate with the audience can be avoided by solutions that don't threaten those values.

  1. Public health in Kosovo after five difficult years of independence

    Directory of Open Access Journals (Sweden)

    Naim Jerliu

    2015-12-01

    administration. Regarding the health status, five years after independence, compared with other European countries, post-war transitional Kosovo is still characterized by higher mortality rates including traditional public health problems pertinent to infant mortality and maternal deaths. In parallel, however, Kosovo is undergoing a rapid process of epidemiological transition characterized by an aging trend which is inevitably coupled with high cardiovascular and cancer mortality and morbidity along with an excess mortality in external causes of death and injuries among the adult population. Adoption of the new Health Law in December 2012 by the Kosovo Assembly aims the transition from centralized health care system established under emergency conditions of the post-war period towards a contemporary modern health care system with a clear purchaser-provider split based on a high transparency and accountability of the health care providers and their contractors. The health care reform, leading eventually to significant changes within the health sector in Kosovo, consists of two main pillars: (i structural and functional reorganization of the health care system through establishment of Kosovo Health Service (an autonomous and non-for-profit public enterprise at central level of the health care sector, and; (ii establishment for the first time of the public health insurance system with a Health Insurance Fund as its main body. Nevertheless, five years after declaration of independence, Kosovo, the newest state in Europe consisting of the youngest population, is currently facing a particularly difficult socioeconomic and political transition and is additionally struggling and mainstreaming all energies and efforts in order to get full international recognition.

  2. Medicare program; conditions for payment of power mobility devices, including power wheelchairs and power-operated vehicles. Interim final rule with comment period.

    Science.gov (United States)

    2005-08-26

    This interim final rule conforms our regulations to section 302(a)(2)(E)(iv) of the Medicare Prescription Drug, Improvement, and Modernization Act of 2003 (Pub. L. 108-173). This rule defines the term power mobility devices (PMDs) as power wheelchairs and power operated vehicles (POVs or scooters). It sets forth revised conditions for Medicare payment of PMDs and defines who may prescribe PMDs. This rule also requires a face-to-face examination of the beneficiary by the physician or treating practitioner and a PMD prescription and pertinent parts of the medical record that the durable medical equipment supplier maintains in records and makes available to CMS or its agents upon request. Finally, this rule discusses CMS' policy on documentation that may be requested by CMS or its agents to support a Medicare claim for payment, as well as the elimination for the Certificate of Medical Necessity for PMDs.

  3. Facilitating Endotracheal Intubation in Difficult Cases Using an External Magnet

    Directory of Open Access Journals (Sweden)

    Mahin Seyedhejazi

    2015-04-01

    Full Text Available Difficult airway is conventionally defined as a medical scenario in which a trained examiner faces difficulty in either facemask ventilation or tracheal intubation (1. Unlike difficult intubation, the incidence of difficult mask ventilation in adults is considerable (2, 3. Anesthesiologists and those who practice intubation should be familiar with the management of airway and be able to recognize and identify potentially difficult airways including congenital craniofacial deformities with micrognathia (e.g. Pier Robin, Treacher Collins, Goldenhar's, and Crouzon's syndromes and metabolic diseases causing the deposition of accumulated by-products (e.g., Hurler's, Morquio's, and Beckwith-Wiedemann syndromes. Cormack and Lehane grades 3 and 4 at laryngoscopy are an indication for advanced techniques for intubation. Laryngeal mask airway (LMA and fiberscope with a directable tip are useful and important modalities in handling difficult airway and intubation (5. Even normal pediatric airway could become critical due to the anatomical and physiological differences between pediatric and adult airway; this particularly becomes a concern in infants, i.e. children younger than one year old. This hazard is augmented in the presence of congenital or acquired difficulties affecting airway. Consequently, proper preoperative assessment is considered as the cornerstone of pediatric difficult airway management. Every anesthetic plan should be tailored according to patients considering the scenario and also the expertise of the practitioner. Opting for spontaneous respiration maintenance and intervening in a step-wise manner are strongly suggested (6. Multiple airway devices have been and are developed that all of which can be placed under direct vision or blindly; most of these devices consistently both provide and maintain safe oxygenation and ventilation. Furthermore, a wide range of ancillary devices have also been introduced to be of assistance in the

  4. Actual Condition of Paddy Field Levee Maintenance by Various Farm Households including Large-scale Farming in the Developed Land Renting Area

    Science.gov (United States)

    Sakata, Yasuyo

    The survey of interview, resource acquisition, photographic operation, and questionnaire were carried out in the “n” Community in the “y” District in Hakusan City in Ishikawa Prefecture to investigate the actual condition of paddy field levee maintenance in the area where land-renting market was proceeding, large-scale farming was dominant, and the problems of geographically scattered farm-land existed. In the study zone, 1) an agricultural production legal person rent-cultivated some of the paddy fields and maintained the levees, 2) another agricultural production legal person rent-cultivated some of the soy bean fields for crop changeover and land owners maintained the levees. The results indicated that sufficient maintenance was executed on the levees of the paddy fields cultivated by the agricultural production legal person, the soy bean fields for crop changeover, and the paddy fields cultivated by the land owners. Each reason is considered to be the managerial strategy, the economic incentive, the mutual monitoring and cross-regulatory mechanism, etc.

  5. Analysis of the hydrographic conditions and cyst beds in the San Jorge Gulf, Argentina, that favor dinoflagellate population development including toxigenic species and their toxins

    Science.gov (United States)

    Krock, Bernd; Borel, C. Marcela; Barrera, Facundo; Tillmann, Urban; Fabro, Elena; Almandoz, Gastón O.; Ferrario, Martha; Garzón Cardona, John E.; Koch, Boris P.; Alonso, Cecilia; Lara, Rubén

    2015-08-01

    The overlay of cooler nutrient enriched Beagle-Magellan water with warmer nutrient depleted shelf water and a strong stratification of the water column in the San Jorge Gulf region, Argentina, coincided with relatively high dinoflagellate abundances in April 2012, up to 34,000 cells L- 1. This dinoflagellate proliferation was dominated by Ceratium spp., but environmental conditions also favored to a lesser amount the occurrence of toxigenic dinoflagellates, such as Alexandrium tamarense and Protoceratium reticulatum, whose toxins were hardly detected in any other areas along the expedition transect of the R/V Puerto Deseado between 38 and 56°S (Ushuaia-Mar del Plata) in March/April 2012. Generally vegetative cells of A. tamarense and P. reticulatum co-occurred with their respective phycotoxins in the water column and their cysts in the upper sediment layers. Two strains of A. tamarense were isolated from the bloom sample and morphologically characterized. Their PSP toxin profiles consisted of C1/2, gonyautoxins 1/4 and to a lesser amount of neosaxitoxin and confirmed earlier data from this region. The ratios between autotrophic picoplankton and heterotrophic bacteria were higher in shelf waters in the north than in Beagle-Magellan waters in the south of San Jorge Gulf.

  6. Navigating language barriers under difficult circumstances.

    Science.gov (United States)

    Schenker, Yael; Lo, Bernard; Ettinger, Katharine M; Fernandez, Alicia

    2008-08-19

    The proportion of the U.S. population with limited English proficiency is growing. Physicians often find themselves caring for patients with limited English proficiency in settings with limited language services. There has been little exploration of the decisions physicians face when providing care across language barriers. The authors offer a conceptual framework to aid physicians in thinking through difficult choices about language services and provide responses to common questions encountered in the care of patients with limited English proficiency. Specifically, they describe 4 factors that should inform the decision to call an interpreter (the clinical situation, degree of language gap, available resources, and patient preference), discuss who may be an appropriate interpreter, and offer strategies for when a professional interpreter is not available. The authors use a hypothetical case to illustrate how decisions about language services may evolve over the course of an interaction. This conceptual and practical approach can help clinicians to improve the quality of care provided to patients with limited English proficiency.

  7. Definitions of Complexity are Notoriously Difficult

    Science.gov (United States)

    Schuster, Peter

    Definitions of complexity are notoriously difficult if not impossible at all. A good working hypothesis might be: Everything is complex that is not simple. This is precisely the way in which we define nonlinear behavior. Things appear complex for different reasons: i) Complexity may result from lack of insight, ii) complexity may result from lack of methods, and (iii) complexity may be inherent to the system. The best known example for i) is celestial mechanics: The highly complex Pythagorean epicycles become obsolete by the introduction of Newton's law of universal gravitation. To give an example for ii), pattern formation and deterministic chaos became not really understandable before extensive computer simulations became possible. Cellular metabolism may serve as an example for iii) and is caused by the enormous complexity of biochemical reaction networks with up to one hundred individual reaction fluxes. Nevertheless, only few fluxes are dominant in the sense that using Pareto optimal values for them provides near optimal values for all the others...

  8. Control of roofs difficult to break down

    Energy Technology Data Exchange (ETDEWEB)

    Lukashov, V.G.; Suslyakov, V.P.; Korobov, A.N.

    1981-03-01

    This paper describes a method of advanced torpedoing a roof difficult to break down at the Polysaevskaya coal mine. It consists in placing explosive charges in the roof ahead of the coal face. Three schemes were tested: boreholes were drilled parallel to the face, perpendicular or inclined at an angle to the face. Boreholes were 112 mm in diameter and their length ranged from 30 to 100 m, distance between the boreholes amounted to 20 m. 6ZhV ammonite explosive, 90 mm in diameter and 500 mm long, were used. Torpedos were 2 m long, and separated by 3 to 4 m long air pockets. When a roof characterized by a high compressive strength coefficient (about 10 on the Protod'yakonov scale) was torpedoed, 250 kg of ammonite were used for a borehole 80 m long, and 160 kg for a borehole 50 m long. When borehole length was reduced to 40 m explosive consumption decreased to 117 kg. In the case of rocks with compressive strength coefficient of 6, explosive amount was two times lower. In a coal mine in which an OKP-70 face system was used applying advanced torpedoing increased labor productivity of the face by 30% and reduced cost of mining by 42%. Number of work accidents was reduced 13 times. (In Russian)

  9. Difficult-to-treat asthma in childhood.

    Science.gov (United States)

    Adams, Alexandra; Saglani, Sejal

    2013-06-01

    Asthma continues to be one of the greatest burdens to healthcare resources throughout the developed world. In most cases, good symptom control can be achieved with low-dose inhaled corticosteroids, and can be cared for in the primary and secondary healthcare systems. However, there is a group in whom control is not achieved despite high-dose inhaled corticosteroids and maximal add-on therapies; these are children with problematic severe asthma that should be referred to a specialist team for further investigation and management. In this review we aimed to provide an evidence-based guide for pediatricians providing care for children with asthma in secondary healthcare settings. The review focuses on a proposed investigation and management strategy for children aged between 6 and 16 years with problematic severe asthma, and is supported as far as possible by evidence from the literature. We first address recent advances in nomenclature and then discuss our proposed course of investigation and management of these children. Distinction of children with true, severe, therapy-resistant asthma from those with asthma that is difficult to treat because of unaddressed underlying modifiable factors is critical and is discussed in detail.

  10. Rigid fibrescope Bonfils: use in simulated difficult airway by novices

    Directory of Open Access Journals (Sweden)

    Piepho Tim

    2009-07-01

    Full Text Available Abstract Background The Bonfils intubation fibrescope is a promising alternative device for securing the airway. We examined the success rate of intubation and the ease of use in standardized simulated difficult airway scenarios by physicians. We compared the Bonfils to a classical laryngoscope with Macintosh blade. Methods 30 physicians untrained in the use of rigid fibrescopes but experienced in airway management performed endotracheal intubation in an airway manikin (SimMan, Laerdal, Kent, UK with three different airway conditions. We evaluated the success rate using the Bonfils (Karl Storz, Tuttlingen, Germany or the Macintosh laryngoscope, the time needed for securing the airway, and subjective rating of both techniques. Results In normal airway all intubations were successful using laryngoscope (100% vs. 82% using the Bonfils (p Conclusion The Bonfils can be successfully used by physicians unfamiliar with this technique in an airway manikin. The airway could be secured with at least the same success rate as using a Macintosh laryngoscope in difficult airway scenarios. Use of the Bonfils did not delay intubation in the presence of a difficult airway. These results indicate that intensive special training is advised to use the Bonfils effectively in airway management.

  11. [Latin-American Consensus on Difficult-to-Control Asthma. 2008 Update].

    Science.gov (United States)

    2008-06-01

    difficult-to-control asthma includes pharmacological and non-pharmacological aspects. Patient assessment and treatment should be conducted at appropriately-equipped sites and by specialists experienced in this field. In terms of drug therapy, we specifically looked at the position described in the guidelines regarding the different treatment options. At level 5 of its treatment strategy, GINA recommends adding oral glucocorticoids or omalizumab, albeit this combination is associated with serious undesirable effects, as per GINA itself. The recent Expert Panel Report 3 (2007) from the National Asthma Education and Prevention Program (NAEPP) proposes a different strategy. The treatment approach is divided into six levels: omalizumab is recommended as additional therapy at level 5 in patients with allergic asthma caused by perennial allergens, while oral corticoids are indicated at level 6 and can be used in combination with all level 5 control medications. Patients with difficult-to-control asthma require close follow-up with frequent reviews of their clinical and therapeutic condition and must have a written tailored action plan based on their asthma symptoms and home peak expiratory flow results.

  12. Combined precut in difficult biliary cannulation

    Directory of Open Access Journals (Sweden)

    Jesús Espinel-Díez

    2013-06-01

    Full Text Available Aim: precut sphincterotomy refers to a variety of endoscopic techniques that are used in order to access the bile duct when conventional methods of cannulation have failed. There are not significant data (such as efficacy, safety about the use of different techniques of precutting at the same session. We have described our experience with combined precut sphincterotomy (CPS and we have compared our results to the use of an isolated precut. Patients and methods: we have performed 247 precuts of a total of 2.390 ERCPs. Patients were distributed according to the type of precut practiced: Needle-knife, transpancreatic and combined precut sphincterotomies. "Combined precut" consisted in performing first a transpancreatic sphincterotomy and, if the access was not achieved, then performing a needle-knife sphincterotomy in the same session. The data about safety and efficacy were prospectively collected. The complications were defined according to the consensus criteria. Results: we performed precutting techniques in 247 patients. Needle-knife, transpancreatic, and combined precuts were performed in 125 (6.9%, 74 (4.1% and 48 (2.6% patients, respectively. Bile duct cannulation was successful in 48 patients (100% in the group of combined precut, 121 patients (96.8% in the transpancreatic group, and 67 patients (90.5% in the needle-knife group (p = 0.03. There were not differences in complications rates between the three groups. There was no pancreatitis in the combined precut group. The complications were successfully managed with conservative treatment. Conclusions: combined precut sphincterotomy seems to be a safe and successful technique in those cases of difficult bile duct cannulation.

  13. Childhood Bipolar Disorder: A Difficult Diagnosis

    Science.gov (United States)

    Sutton, Kimberly Kode

    2014-01-01

    Identifying children with emotional or behavior disorders has long been problematic. In a general sense, those children who are most likely to be noticed by teachers and, therefore, referred for possible special education placement are those who exhibit externalizing behaviors, including physical aggression, noncompliance, and rule-breaking. It is…

  14. Fundraising in Difficult Economic Times: Best Practices

    Science.gov (United States)

    Curry, Janel; Rodin, Scott; Carlson, Neil

    2012-01-01

    Christian institutions of higher education, as with other American nonprofits, are under considerable financial stress. The purpose of this research, which included both a survey of development officers and conversations with a sample of CCCU presidents, vice presidents of development, or provosts, was to identify best practices in fundraising.…

  15. Difficult asthma: assessment and management, Part 2.

    Science.gov (United States)

    Fanta, Christopher H; Long, Aidan A

    2012-01-01

    Patients with severe asthma have considerable morbidity related to their asthma and are at risk for serious, life-threatening exacerbations. Their management requires an intensive and comprehensive approach, including attention to reducing exposure to environmental inciters of airway inflammation and triggers of symptoms, patient education (including an asthma action plan), and opportunity for close patient-provider communication. Approved medical options include the lipoxygenase inhibitor, zileuton; the anti-immunoglobulin E monoclonal antibody, omalizumab; and bronchial thermoplasty. Nonapproved interventions of potential benefit are ultrahigh-dose inhaled corticosteroids, anticholinergic bronchodilators (tiotropium), macrolide antibiotics, and vitamin D supplementation for the vitamin D-deficient patient. Potentially toxic, "steroid-sparing" therapies such as methotrexate, cyclosporine, and etanercept are best reserved for patients participating in clinical trials. Recognition of specific subtypes of patients with therapy-resistant asthma permits more targeted treatment approaches, such as for aspirin-sensitive asthma, persistent eosinophilic asthma, asthma complicated by allergic bronchopulmonary aspergillosis, asthma with persistent airflow obstruction, and asthma with life-threatening (near fatal) asthmatic attacks. Novel therapies based on an improved understanding of the pathobiology of therapy-resistant asthma are greatly needed.

  16. Nonadherence in difficult asthma – facts, myths, and a time to act

    Directory of Open Access Journals (Sweden)

    Lindsay JT

    2013-04-01

    Full Text Available John T Lindsay, Liam G HeaneyCentre for Infection and Immunity, Queens University Belfast, Belfast, UKAbstract: Nonadherence to prescribed treatment is an important cause of difficult asthma. Rates of nonadherence amongst asthmatic patients have been shown to range between 30% and 70%. This is associated with poor health care outcomes and increased health care costs. There is no such thing as a "typical" nonadherent patient. The reasons driving nonadherence are multifactorial. Furthermore, adherence is a variable behavior and not a trait characteristic. Adherence rates can vary between the same individual across treatments for different conditions. There is no consistent link between socioeconomic status and nonadherence, and although some studies have shown that nonadherence is more common amongst females, this is not a universal finding. The commonly held perception that better adherence is driven by greater disease severity has been demonstrated to not be the case, in both pediatric and adult patients. Identification of nonadherence is the first step. If adherence is not checked, it is likely that poor adherence will be labeled as refractory disease. Failure to identify poor adherence may lead to inappropriate escalation of therapy, including the potential introduction of complex biological therapies. Surrogate measures, such as prescription counting, are not infallible. Nonadherence can be difficult to identify in clinical practice, and a systematic approach using a variety of tools is required. Nonadherence can be successfully addressed. Therefore, assessment of adherence is of paramount importance in difficult asthma management, in order to reduce exacerbations and steroid-related side effects as well as hospital and intensive care admissions, health care cost, and inappropriate treatment escalation. In this paper, we present an overview of the literature surrounding nonadherence in difficult asthma. We explore the facts and myths

  17. Management of difficult airway in intratracheal tumor surgery

    Directory of Open Access Journals (Sweden)

    Agarwal Surendra K

    2005-06-01

    Full Text Available Abstract Background Tracheal malignancies are usual victim of delay in diagnosis by virtue of their symptoms resembling asthma. Sometimes delayed diagnosis may lead to almost total airway obstruction. For difficult airways, not leaving any possibility of manipulation into neck region or endoscopic intervention, femorofemoral cardiopulmonary bypass can be a promising approach. Case Presentation We are presenting a case of tracheal adenoid cystic carcinoma (cylindroma occupying about 90% of the tracheal lumen. It was successfully managed by surgical excision of mass by sternotomy and tracheotomy under femorofemoral cardiopulmonary bypass (CPB. Conclusion Any patient with recurrent respiratory symptoms should be evaluated by radiological and endoscopic means earlier to avoid delay in diagnosis of such conditions. Femorofemoral cardiopulmonary bypass is a relatively safe way of managing certain airway obstructions.

  18. Laser-assisted machining of difficult-to-machine materials

    Energy Technology Data Exchange (ETDEWEB)

    Incropera, F.P.; Rozzi, J.C.; Pfefferkorn, F.E.; Lei, S.; Shin, Y.C.

    1999-07-01

    Laser-assisted machining (LAM) is a hybrid process for which a difficult-to-machine material, such as a ceramic or super alloy, is irradiated by a laser source prior to material removal by a cutting tool. The process has the potential to significantly increase material removal rates, as well as to improve the geometry and properties of the finished work piece. Features and limitations of theoretical and experimental procedures for determining the transient thermal response of a work piece during LAM are described, and representative results are presented for laser-assisted turning of sintered silicon nitride. Significant physical trends are revealed by the calculations, as are guidelines for the selection of appropriate operating conditions.

  19. Managing Difficult Patients: Roles of Psychologists in the Age of Interdisciplinary Care.

    Science.gov (United States)

    Robiner, William N; Petrik, Megan L

    2017-03-10

    Various problems can occur during encounters between health providers and patients. In some instances, clinicians attribute these problems to patients being "difficult." However, clinicians' perception of difficulties in the clinical encounter are also influenced by: clinicians' own attitudes, thoughts, and behavior; the specific setting in which patient and clinician interact; and properties of the healthcare organization in which they are embedded. This article explores how psychologists in medical settings can serve as a resource that: improves patient care for difficult patients; supports provider wellness; provides relevant education to clinical providers; and reduces the stress that difficult patients place on the healthcare system. The definition, scope, and impact of difficult patients in healthcare settings are reviewed, including an examination of patient, clinician, and systems factors that contribute to the etiology of difficult clinical encounters. Strategies are discussed that may prevent or limit the adverse impact of difficult patients in healthcare, with special emphasis on the roles of psychologists in interprofessional healthcare teams.

  20. Risk Factors for and Prediction of a Difficult Neuraxial Block

    DEFF Research Database (Denmark)

    Stendell, Line; Lundstrøm, Lars H; Wetterslev, Jørn;

    2015-01-01

    BACKGROUND: A difficult neuraxial block (DNB) may be associated with complications. The aims of this study were to estimate the prevalence of DNB, assess patient-related and organizational factors associated with DNB, and evaluate the diagnostic accuracy of an accumulated risk score for predicting...... DNB. METHODS: A consecutive cohort of 73,579 patients was retrieved. A predefined DNB score and information on patient-related and organizational factors were included in the analyses. Logistic regression analysis was performed. We evaluated the diagnostic accuracy of an accumulated weighted point...... score of the patient-related risk factors of DNB. RESULTS: The prevalence of DNB and abandoned neuraxial block was 3.9 (95% confidence interval [95% CI], 3.7-4.0) and 0.2 (95% CI, 0.16-0.22), respectively. Body mass index of 35 or higher and previous DNB were associated with DNB, with 3.23 (95% CI, 2...

  1. Penile Corporeal Reconstruction during Difficult Placement of a Penile Prosthesis

    Directory of Open Access Journals (Sweden)

    Viet Q. Tran

    2008-01-01

    Full Text Available For some patients with impotence and concomitant severe tunical/corporeal tissue fibrosis, insertion of a penile prosthesis is the only option to restore erectile function. Closing the tunica over an inflatable penile prosthesis in these patients can be challenging. We review our previous study which included 15 patients with severe corporeal or tunical fibrosis who underwent corporeal reconstruction with autologous rectus fascia to allow placement of an inflatable penile prosthesis. At a mean follow-up of 18 months (range 12 to 64, all patients had a prosthesis that was functioning properly without evidence of separation, herniation, or erosion of the graft. Sexual activity resumed at a mean time of 9 weeks (range 8 to 10. There were no adverse events related to the graft or its harvest. Use of rectus fascia graft for coverage of a tunical defect during a difficult penile prosthesis placement is surgically feasible, safe, and efficacious.

  2. ECO2M: A TOUGH2 Fluid Property Module for Mixtures of Water, NaCl, and CO2, Including Super- and Sub-Critical Conditions, and Phase Change Between Liquid and Gaseous CO2

    Energy Technology Data Exchange (ETDEWEB)

    Pruess, K.

    2011-04-01

    ECO2M is a fluid property module for the TOUGH2 simulator (Version 2.0) that was designed for applications to geologic storage of CO{sub 2} in saline aquifers. It includes a comprehensive description of the thermodynamics and thermophysical properties of H{sub 2}O - NaCl - CO{sub 2} mixtures, that reproduces fluid properties largely within experimental error for temperature, pressure and salinity conditions in the range of 10 C {le} T {le} 110 C, P {le} 600 bar, and salinity from zero up to full halite saturation. The fluid property correlations used in ECO2M are identical to the earlier ECO2N fluid property package, but whereas ECO2N could represent only a single CO{sub 2}-rich phase, ECO2M can describe all possible phase conditions for brine-CO{sub 2} mixtures, including transitions between super- and sub-critical conditions, and phase change between liquid and gaseous CO{sub 2}. This allows for seamless modeling of CO{sub 2} storage and leakage. Flow processes can be modeled isothermally or non-isothermally, and phase conditions represented may include a single (aqueous or CO{sub 2}-rich) phase, as well as two-and three-phase mixtures of aqueous, liquid CO{sub 2} and gaseous CO{sub 2} phases. Fluid phases may appear or disappear in the course of a simulation, and solid salt may precipitate or dissolve. TOUGH2/ECO2M is upwardly compatible with ECO2N and accepts ECO2N-style inputs. This report gives technical specifications of ECO2M and includes instructions for preparing input data. Code applications are illustrated by means of several sample problems, including problems that had been previously solved with TOUGH2/ECO2N.

  3. Difficult Airway Society 2015 guidelines for management of unanticipated difficult intubation in adults.

    Science.gov (United States)

    Frerk, C; Mitchell, V S; McNarry, A F; Mendonca, C; Bhagrath, R; Patel, A; O'Sullivan, E P; Woodall, N M; Ahmad, I

    2015-12-01

    These guidelines provide a strategy to manage unanticipated difficulty with tracheal intubation. They are founded on published evidence. Where evidence is lacking, they have been directed by feedback from members of the Difficult Airway Society and based on expert opinion. These guidelines have been informed by advances in the understanding of crisis management; they emphasize the recognition and declaration of difficulty during airway management. A simplified, single algorithm now covers unanticipated difficulties in both routine intubation and rapid sequence induction. Planning for failed intubation should form part of the pre-induction briefing, particularly for urgent surgery. Emphasis is placed on assessment, preparation, positioning, preoxygenation, maintenance of oxygenation, and minimizing trauma from airway interventions. It is recommended that the number of airway interventions are limited, and blind techniques using a bougie or through supraglottic airway devices have been superseded by video- or fibre-optically guided intubation. If tracheal intubation fails, supraglottic airway devices are recommended to provide a route for oxygenation while reviewing how to proceed. Second-generation devices have advantages and are recommended. When both tracheal intubation and supraglottic airway device insertion have failed, waking the patient is the default option. If at this stage, face-mask oxygenation is impossible in the presence of muscle relaxation, cricothyroidotomy should follow immediately. Scalpel cricothyroidotomy is recommended as the preferred rescue technique and should be practised by all anaesthetists. The plans outlined are designed to be simple and easy to follow. They should be regularly rehearsed and made familiar to the whole theatre team.

  4. Difficult Airway Society 2015 guidelines for management of unanticipated difficult intubation in adults†

    Science.gov (United States)

    Frerk, C.; Mitchell, V. S.; McNarry, A. F.; Mendonca, C.; Bhagrath, R.; Patel, A.; O'Sullivan, E. P.; Woodall, N. M.; Ahmad, I.

    2015-01-01

    These guidelines provide a strategy to manage unanticipated difficulty with tracheal intubation. They are founded on published evidence. Where evidence is lacking, they have been directed by feedback from members of the Difficult Airway Society and based on expert opinion. These guidelines have been informed by advances in the understanding of crisis management; they emphasize the recognition and declaration of difficulty during airway management. A simplified, single algorithm now covers unanticipated difficulties in both routine intubation and rapid sequence induction. Planning for failed intubation should form part of the pre-induction briefing, particularly for urgent surgery. Emphasis is placed on assessment, preparation, positioning, preoxygenation, maintenance of oxygenation, and minimizing trauma from airway interventions. It is recommended that the number of airway interventions are limited, and blind techniques using a bougie or through supraglottic airway devices have been superseded by video- or fibre-optically guided intubation. If tracheal intubation fails, supraglottic airway devices are recommended to provide a route for oxygenation while reviewing how to proceed. Second-generation devices have advantages and are recommended. When both tracheal intubation and supraglottic airway device insertion have failed, waking the patient is the default option. If at this stage, face-mask oxygenation is impossible in the presence of muscle relaxation, cricothyroidotomy should follow immediately. Scalpel cricothyroidotomy is recommended as the preferred rescue technique and should be practised by all anaesthetists. The plans outlined are designed to be simple and easy to follow. They should be regularly rehearsed and made familiar to the whole theatre team. PMID:26556848

  5. Non-adherence in difficult asthma and advances in detection.

    Science.gov (United States)

    Lindsay, John T; Heaney, Liam G

    2013-12-01

    Non-adherence to anti-inflammatory therapies is common in patients referred for specialist assessment at difficult-to-treat asthma services. In the difficult asthma setting, non-adherence to treatment is associated with poor baseline asthma control, increased frequency of exacerbations and asthma-related hospitalizations, as well as increased risk of death. Here, we present a review of the current literature surrounding the prevalence and risks of non-adherence in difficult asthma and we report on current methods of measuring treatment adherence and advances in the detection of non-adherence. We will also explore methods by which non-adherence in difficult asthma can be addressed.

  6. Incidence and predictors of difficult mask ventilation and intubation

    Directory of Open Access Journals (Sweden)

    Prerana N Shah

    2012-01-01

    Conclusions: The predictive score may lead to a better anticipation of difficult airway management, potentially deceasing the morbidity and mortality resulting from hypoxia or anoxia with failed ventilation.

  7. Difficult Diagnoses in Hyperkinetic Disorders – A Focused Review

    Directory of Open Access Journals (Sweden)

    Francisco eCardoso

    2012-10-01

    Full Text Available ABSTRACTHyperkinesias are heterogeneous conditions that share the feature of production of involuntary, abnormal, excessive movements. Tremor, dystonia, and chorea are amongst the most common of these phenomena. In this focused review there is a discussion of difficult issues in hyperkinesias. The first one is the differential diagnosis between essential tremor and Parkinson’s disease. They are readily distinguishable in the majority of patients but in a few subjects essential tremor coexist with parkinsonian features whose underlying mechanism remains to be determined. The second topic of the review is dystonic tremor. Although increasingly diagnosed and reported as accounting for the majority of SWEDDs, its diagnostic criteria are ill defined and differentiation from Parkinson’s disease and essential tremor can be challenging. In the last section, there is a discussion of the differential diagnosis of Sydenham’s chorea, the most common cause of chorea in children. In a few patients, vascular disease, systemic lupus erythematosus and primary antiphospholipid antibody syndrome can mimic Sydenham’s chorea.

  8. Difficult Tracheal Intubation in Obese Gastric Bypass patients

    DEFF Research Database (Denmark)

    Dohrn, Niclas; Sommer, Thorbjørn; Bisgaard, J.

    2016-01-01

    Endotracheal intubation is commonly perceived to be more difficult in obese patients than in lean patients. Primarily, we investigated the association between difficult tracheal intubation (DTI) and obesity, and secondarily, the association between DTI and validated scoring systems used to assess...

  9. Use of the Flugelman index for identifying patients who are difficult to discharge from the hospital

    Directory of Open Access Journals (Sweden)

    Chiara Bozzano

    2013-03-01

    Full Text Available Introduction: To evaluate the use of multidimensional assessment based on the Fluegelman Index (FI to identify internal medicine patients who are likely to be difficult to discharge from the hospital. Materials and methods: Have been evaluated all patients admitted to the medical wards of the District General Hospital of Arezzo from September 1 to October 31, 2007. We collected data on age, sex, socioeconomic condition, cause of admission, comorbidity score preadmission functional status (Barthel Index, incontinence, feeding problems, length of hospitalization, condition at discharge, and type of discharge. The FI cut off for difficult discharge was > 17. Results: Of the 413 patients (mean age 80 + 11.37 years; percentage of women, 56.1% included in the study, 109 (26.39% had Flugelman Index > 17. These patients were significantly older than the patients with lower FIs (85 + 9.35 vs 78 + 11.58 years, p < 0.001, more likely to be admitted for pneumonia (22% vs. 4.9% of those with lower FIs; p < 0,001. They also had more comorbidity, loss of autonomy, cognitive impairment, social frailty, and nursing care needs. The subgroup with FIs>17 had significantly higher in-hospital mortality (30.28% vs 6.25%, p < 0.001, longer hospital stay (13 vs. 10 days, p < 0.05, and higher rates of discharge to nursing homes. Conclusions: Evaluation of internal medicine patients with the Flugelman Index may be helpful for identifying more critical patients likely to require longer hospitalization and to detect factors affecting the hospital stay. This information can be useful for more effective discharge planning.

  10. Genetic evidence of multiple loci in dystocia - difficult labour

    Directory of Open Access Journals (Sweden)

    Westgren Magnus

    2010-06-01

    Full Text Available Abstract Background Dystocia, difficult labour, is a common but also complex problem during childbirth. It can be attributed to either weak contractions of the uterus, a large infant, reduced capacity of the pelvis or combinations of these. Previous studies have indicated that there is a genetic component in the susceptibility of experiencing dystocia. The purpose of this study was to identify susceptibility genes in dystocia. Methods A total of 104 women in 47 families were included where at least two sisters had undergone caesarean section at a gestational length of 286 days or more at their first delivery. Study of medical records and a telephone interview was performed to identify subjects with dystocia. Whole-genome scanning using Affymetrix genotyping-arrays and non-parametric linkage (NPL analysis was made in 39 women exhibiting the phenotype of dystocia from 19 families. In 68 women re-sequencing was performed of candidate genes showing suggestive linkage: oxytocin (OXT on chromosome 20 and oxytocin-receptor (OXTR on chromosome 3. Results We found a trend towards linkage with suggestive NPL-score (3.15 on chromosome 12p12. Suggestive linkage peaks were observed on chromosomes 3, 4, 6, 10, 20. Re-sequencing of OXT and OXTR did not reveal any causal variants. Conclusions Dystocia is likely to have a genetic component with variations in multiple genes affecting the patient outcome. We found 6 loci that could be re-evaluated in larger patient cohorts.

  11. [Malnutrition and intensive care: discussion on a difficult case].

    Science.gov (United States)

    Berger, Mette M; Revelly, Jean-Pierre; Cayeux, Marie-Christine; Gersbach, Philippe; Chioléro, René L

    2003-06-01

    Hospital malnutrition is an insidious problem which is responsible for many complications. Critically ill patients are frequently hypermetabolic with increased nutritional requirements, and are exposed to the risk of underfeeding. The case report presents the case of a patient which stayed 22 days in the intensive care unit (ICU), and whose nutritional support failed: he ultimately died of surgical and infectious complications. An optimal support includes a early metabolic support provided as glucose-insulin-potassium infusion and antioxidant micronutrients, with an enteral nutrition initiated on days 3 or 4. It is frequently difficult to reach energy targets with exclusive enteral nutrition: if the latter is not reached after 5-6 days of enteral feeding, combination with parenteral nutrition enables worsening of the energy deficit. Transition to oral feeding is another critical event which may expose the patient to underfeeding: prescription of oral supplements and/or maintenance of overnight enteral feeding providing 50-75% of energy requirements helps overcome this period. The case illustrates the importance of monitoring daily and cumulated energy balance.

  12. Improving oncology nurses' communication skills for difficult conversations.

    Science.gov (United States)

    Baer, Linda; Weinstein, Elizabeth

    2013-06-01

    When oncology nurses have strong communication skills, they play a pivotal role in influencing patient satisfaction, adherence to plans of care, and overall clinical outcomes. However, research studies indicate that nurses tend to keep communication with patients and families at a superficial, nontherapeutic level. Processes for teaching goals-of-care communication skills and for implementing skills into clinical practice are not clearly defined. Nurses at a large comprehensive cancer center recognized the need for help with this skill set and sought out communication experts to assist in providing the needed education. An educational project was developed to improve therapeutic communication skills in oncology nurses during goals-of-care discussions and giving bad news. The program was tailored to nurses and social workers providing care to patients in a busy, urban, academic, outpatient oncology setting. Program topics included exploring the patient's world, eliciting hopes and concerns, and dealing with conflict about goals. Sharing and discussing specific difficult questions and scenarios were encouraged throughout the program. The program was well attended and well received by oncology nurses and social workers. Participants expressed interest in the continuation of communication programs to further enhance skills.

  13. Pet dander and difficult-to-control asthma: Therapeutic options.

    Science.gov (United States)

    Ling, Morris; Long, Aidan A

    2010-01-01

    The prevalence of sensitization to cat and dog allergens is high in the general population and poses a challenge to the physician managing allergic asthma. Adequate allergen avoidance is difficult to achieve because of the physical characteristics of airborne animal allergens and patient noncompliance. Allergen-specific high-dose subcutaneous immunotherapy has shown benefit in cat-allergic patients with asthma and rhinoconjunctivitis, whereas the data for dog-allergic patients are not as convincing. Alternative immunotherapy approaches including the sublingual route or allergen-derived peptide-based immunotherapy remain experimental. Pharmacotherapy of pet-allergic asthmatic patients requires a stepwise approach following established asthma management guidelines. In addition to short-acting beta-agonists and inhaled corticosteroids, prophylactic antihistamines before anticipated pet exposure, the use of intranasal steroids, and the use of leukotriene antagonists may also be considered as adjunctive therapy in pet-allergic patients with asthma and/or allergic rhinitis. Omalizumab appears to have particular efficacy in pet allergen-induced asthma. Novel therapies such as Fcgamma-Fel d 1 chimeric proteins still have to be evaluated in the human setting.

  14. Management of difficult inflammatory bowel disease: where are we now?

    Institute of Scientific and Technical Information of China (English)

    D.S. Rampton

    2000-01-01

    Management of inflammatory bowel disease includes not only drug, endoscopic and surgical therapy but alsopsychosocial support, dietary and specific nutritional measures: a multidisciplinary medical, surgical, nursingand dietetic approach is essential for all patients, particularly those with complex or refractory disease. Inthis paper, current treatment of acute severe ulcerative colitis and steroid-refractory or -dependent Crohn'sdisease is reviewed. Adjunctive intravenous cyclosporin is an alternative to urgent colectomy in steroid-refractory patients with acute severe ulcerative colitis, while the place of intravenous heparin for thisindication awaits clarification. Azathioprine or 6-mercaptopurine are useful options in chronically active,steroid-refractory or -dependent Crohn's disease, but may take up to 4 months to work. Methotrexate is amore recent immunomodulatory alternative. Of new therapies selectively aimed at specific pathophysiologicaltargets, the first to reach clinical application is anti-TNF-alpha antibody (infliximab) for refractory Crohn'sdisease: its benefits are promising, but experience with it is limited to date, its cost is high and there areuncertainties about long-term safety. In view of the increasing variety and complexity of management optionsin inflammatory bowel disease, whether apparently responsive or difficult to treat, patients must participatein decisions about which therapies they are to be given.

  15. Difficult issues in mentoring: recommendations on making the "undiscussable" discussable.

    Science.gov (United States)

    Bickel, Janet; Rosenthal, Susan L

    2011-10-01

    Many mentoring relationships do not reach fruition because the individuals fail to bridge a critical difference. When a difference prevents a learning partnership from achieving its potential, the loss is multidimensional for the individuals and the institution--wasting opportunities for the fostering of current and future talent. Insights into when such impasses are likely to arise may help both mentors and mentees address what feels "undiscussable." The authors offer numerous examples of how differences related to ethnicity, language, gender, and generation may interfere with the development of mentoring relationships. Next, the authors offer recommendations on preparing for and handling difficult conversations, including creating safety, noticing assumptions and emotions, and raising sensitive issues. Virtually all faculty can become more effective at communicating across differences and addressing difficulties that prevent mentoring relationships from achieving their potential. The pay-offs for these efforts are indisputable: increased effect in the limited time available for mentoring, an expanded legacy of positive influence, and enhanced communication and leadership skills. The honing of these relational skills enhances the colleagueship and teamwork on which virtually all research, clinical, and educational enterprises depend. Academic health centers that systematically support mentoring enhance institutional stability, talent development, and leadership capacity.

  16. How libraries make tough choices in difficult times purposeful abandonment

    CERN Document Server

    Stern, David

    2013-01-01

    Contemporary library managers face the need to make difficult choices regarding resource allocation in the modern business environment. How Libraries Make Tough Choices in Difficult Times is a practical guide for library managers, offering techniques to analyze existing and potential services, implement best practices for maximizing existing resources, and utilize pressing financial scenarios in order to justify making difficult reallocation decisions. The book begins by asking the fundamental questions of why, what, and how, moving on to look at how to manage expectations and report to both a

  17. [Retrovesical pseudocyst : difficult diagnosis of one case and literature review].

    Science.gov (United States)

    Sarf, I; Dahami, Z; Dakir, M; Joual, A; Bennani, S; Elmrini, M; Benjelloun, S

    2002-03-01

    Retrovesical localization of a cystic mass is rare. The authors report one observation of hematic retrovesical pseudocystic formation having a difficult diagnosis. In the light of this observation, different diagnostic patterns of cystic and pseudocystic retrovesical formation are discussed.

  18. PREDICTORS OF DIFFICULT INTUBATION: STUDY IN KASHMIRI POPULATION

    Directory of Open Access Journals (Sweden)

    Gupta A K

    2009-12-01

    Full Text Available Airway assessment is the most important aspect of Anaesthesia practice as a difficult intubation may be unanticipated. A prospective study was done to compare the efficacy of airway parameters to predict difficult intubation viz; degree of head extension, thyromental distance, inter incisor gap, grading ofprognathism, obesity and modified mallampati test. Six hundred patients with ASA I& ASA II grade were enrolled in study. All patients were preoperatively assessed for airway parameters. Intra-operatively all patients were classified according to Cormack and Lehane laryngoscopic view. Clinical data of each test was collected, tabulated and analyzed to obtain the sensitivity, specificity, positive predictive value & negative predictive value. Results obtained showed incidence of difficult intubation in 3.3%. Head&neck movements had the highest sensitivity (86.36%; high arched palate had highest specificity (99.38%.Head & neck movements had highest sensitivity; high arched palate had highest specificity, however, head & neck movements strongly correlated for patients with difficult intubation.

  19. Difficult diagnoses in the skeletal radiology; Schwierige Diagnosen in der Skelettradiologie

    Energy Technology Data Exchange (ETDEWEB)

    Freyschmidt, Juergen [Klinikum Bremen-Mitte (Germany). Beratungsstelle und Referenz-Zentrum fuer Osteoradiologie

    2013-11-01

    The book on difficult diagnoses in the skeletal radiology discusses the path from symptom to diagnoses including image interpretation. Specific case studies concern the skull, the spinal cord, pelvis, shoulder and chest, upper and lower extremities. The used radiological techniques include projecting radiography, computerized tomography, scintiscanning, PET/CT, NNR imaging and ultrasonography.

  20. Species delimitation in taxonomically difficult fungi: the case of Hymenogaster.

    Directory of Open Access Journals (Sweden)

    Benjamin Stielow

    Full Text Available BACKGROUND: False truffles are ecologically important as mycorrhizal partners of trees and evolutionarily highly interesting as the result of a shift from epigeous mushroom-like to underground fruiting bodies. Since its first description by Vittadini in 1831, inappropriate species concepts in the highly diverse false truffle genus Hymenogaster has led to continued confusion, caused by a large variety of prevailing taxonomical opinions. METHODOLOGY: In this study, we reconsidered the species delimitations in Hymenogaster based on a comprehensive collection of Central European taxa comprising more than 140 fruiting bodies from 20 years of field work. The ITS rDNA sequence dataset was subjected to phylogenetic analysis as well as clustering optimization using OPTSIL software. CONCLUSIONS: Among distinct species concepts from the literature used to create reference partitions for clustering optimization, the broadest concept resulted in the highest agreement with the ITS data. Our results indicate a highly variable morphology of H. citrinus and H. griseus, most likely linked to environmental influences on the phenology (maturity, habitat, soil type and growing season. In particular, taxa described in the 19(th century frequently appear as conspecific. Conversely, H. niveus appears as species complex comprising seven cryptic species with almost identical macro- and micromorphology. H. intermedius and H. huthii are described as novel species, each of which with a distinct morphology intermediate between two species complexes. A revised taxonomy for one of the most taxonomically difficult genera of Basidiomycetes is proposed, including an updated identification key. The (semi-automated selection among species concepts used here is of importance for the revision of taxonomically problematic organism groups in general.

  1. A technique for re-utilizing catheter insertion sites in children with difficult central venous access.

    Science.gov (United States)

    Johnson, S M; Garnett, G M; Woo, R K

    2017-01-01

    Maintenance of central venous access in patients with chronic medical conditions such as short bowel syndrome demands forethought and ingenuity. We describe an innovative technique for re-utilizing central venous access sites in patients who have chronic central venous access needs. Records of patients undergoing this technique were reviewed between August 2012 and December 2015. The technique involves "cutting-down" to the sterile fibrous tunnel that naturally forms around tunneled catheters. The fibrous sheath is then isolated and controlled much as would be done for a venous "cut-down." A separate exit site is then created for the new catheter and it is tunneled to the "cut-down" site per routine. The non-functioning catheter is then removed from the surgical field. The proximal fibrous sheath is finally cannulated either directly with the new catheter or with a wire/dilator system. This technique effectively re-uses the same venous access point while allowing for a complete change of the physical line and external site. Twenty attempts at this technique were made in twelve patients; six patients underwent the site re-utilization procedure multiple times. Re-using the fibrous tunnel to re-cycle the internal catheter site was successful in seventeen of twenty attempts. All patients had chronic conditions leading to difficult long-term central venous access [short bowel syndrome (6), hemophilia (2), cystic fibrosis (1), chronic need for central IV access (3)]. Indications for catheter replacement included catheter occlusion/mechanical failure/breakage (9), dislodgement (6), infection (1), and inadequate catheter length due to patient growth (4). Broviac/Hickman catheter sites were most commonly re-used (13; one failure); re-using a portcath site was successful in 5 of 7 attempts. There were no short term infections or mechanical complications. We describe a novel technique for salvaging tunneled central venous catheter access sites. This technique is well suited

  2. A novel cannulation technique for difficult urethral catheterization

    Directory of Open Access Journals (Sweden)

    Mehmet Kaynar

    2016-03-01

    Full Text Available Introduction: To propose a novel cannulation technique for difficult urethral catheterization procedures. Technique: The sheath tip of an intravenous catheter is cut off, replaced to the needle tip and pushed through the distal drainage side hole to Foley catheter tip, and finally withdrawn for cannulation. In situations making urethral catheterization difficult, a guide wire is placed under direct vision. The modified Foley catheter is slid successfully over the guide wire from its distal end throughout the urethral passage into the bladder. Results: The modified Foley catheter was used successfully in our clinic in cases requiring difficult urethral catheterization. Conclusions: This easy and rapid modification of a Foley catheter may minimize the potential complications of blind catheter placement in standard catheterization.

  3. Complicated jejunal diverticulitis: A challenging diagnosis and difficult therapy

    Directory of Open Access Journals (Sweden)

    Erik Schloericke

    2012-01-01

    Full Text Available Background/Aim: In contrast to diverticulosis of the colon, jejunal diverticulosis is a rare entity that often becomes clinically relevant only after exacerbations occur. The variety of symptoms and low incidence make this disease a difficult differential diagnosis. Patients and Methods: Data from all patients who were treated in our surgical department for complicated jejunal diverticulitis, that is, gastrointestinal hemorrhage or a diverticula perforation were collected prospectively over a 6-year period (January 2004 to January 2010 and analyzed retrospectively. Results: The median age among the 9 patients was 82 years (range: 54-87. Except for 2 cases (elective operation for a status postjejunal peridiverticulitis and a re-perforation of a diverticula in a patient s/p segment resection with free perforation, the diagnosis could only be confirmed with an exploratory laparotomy. Perforation was observed in 5 patients, one of which was a retroperitoneal perforation. The retroperitoneal perforation was associated with transanal hemorrhage. Hemodynamically relevant transanal hemorrhage requiring transfusion were the reason for an exploratory laparotomy in 2 further cases. In one patient, the hemorrhage was the result of a systemic vasculitis with resultant gastrointestinal involvement. A singular jejunal diverticulum caused an adhesive ileus in one patient. The extent of jejunal diverticulosis varied between a singular diverticulum to complete jejunal involvement. A tangential, transverse excision of the diverticulum was carried out in 3 patients. The indication for segment resection was made in the case of a perforation with associated peritonitis (n=4 as well as the presence of 5 or more diverticula (n=2. Histological analysis revealed chronic pandiverticulitis in all patients. Median operating time amounted to 142 minutes (range: 65-210 and the median in-hospital stay was 12 days (range: 5-45. Lethality was 0%. Major complications included

  4. Non-attendance at a difficult-asthma clinic.

    Science.gov (United States)

    McDonough, Beverley; Mault, Susan

    Increasing demand for our weekly difficult-asthma clinic means routine appointments are at a premium. This led us to explore the reasons why patients failed to attend for appointments and whether contacting them by telephone within a week of their missed scheduled appointment increased attendance. Memory lapses were the most common reason for non-attendance. Telephoning non-attenders led to a two-fold increase in attendance at subsequent clinics. Non-attendance may be a reflection of poor concordance, which, in itself, may contribute to a patient's difficult asthma.

  5. A MODIFIED TECHNIQUE OF RETROGRADE INTUBATION IN A DIFFICULT INTUBATION CASE

    Directory of Open Access Journals (Sweden)

    Murthy

    2014-08-01

    Full Text Available Anaesthesiologists will be facing difficult intubating conditions, anticipated or unanticipated, quite frequently, whenever they anaesthetize patients with facio- maxillary injuries, temporo mandibular joint ankylosis, obesity, pregnancy, congenital air-way abnormalities, etc. A large number of aids are available now for intubating in such difficult situations and a lot of techniques have been described in literature for giving anaesthesia for such patients. (1 Use of Bullard laryngoscope in difficult air-way situation was described by Dullenkopf et al 2003, (2 Lighted Wand by Agro et al 2004, (3 Shikani flexible seeing stylet by Agro et al 2005(4 Blind nasal intubation, L M A, Fiber optic laryngoscope by Levitan et al1999. (5 Glydoscope by Lim et al 2005(6 . In this case report, we have given one more alternate solution for this problem

  6. Complement Constructions in English: Fairly Difficult for EFL Language Learners

    Science.gov (United States)

    Fazeli, Fatemeh; Shokrpour, Nasrin

    2012-01-01

    Complement constructions vary significantly in English and Persian. There are more complementation structures in English than in Persian and a complement structure in Persian might have more than one equivalent in English. Producing complement structures (CSs) in English is very difficult for native speakers of Persian, especially in an EFL…

  7. Developing Difficult Dialogues: An Evaluation of Classroom Implementation

    Science.gov (United States)

    Placier, Peggy; Kroner, Crystal; Burgoyne, Suzanne; Worthington, Roger

    2012-01-01

    The University of Missouri (MU) participated in the Ford Foundation's Difficult Dialogues Initiative (DDI) supporting faculty development projects at over 40 institutions of higher education from 2006-2010. This paper reports findings from an evaluation conducted with instructors who not only engaged in faculty development workshops but also…

  8. Disaffection and Inclusion: Merton's Mainstream Approach to Difficult Behaviour.

    Science.gov (United States)

    Barrow, Giles

    This booklet describes an inclusive approach to disaffection in Merton Education Authority, a school district southwest of London (England). Instead of concentrating on providing for students with emotional and behavior difficulties in an off-site behavior support center, Merton switched its main efforts to preventing difficult behavior through…

  9. Caregiver Beliefs and Dysphoric Affect Directed to Difficult Children.

    Science.gov (United States)

    Bugental, Daphne Blunt; And Others

    1990-01-01

    When sibling pairs interacted with unrelated mothers, facial and vocal affect directed to the difficult child in the pair was more dysphoric than that directed to the other. This was particularly the case among women who attributed relatively high control to children and low control to adults. A similar relation between affect and attributions was…

  10. The Difficult Empowerment in Danish Hospital: Power to the nurses!?

    DEFF Research Database (Denmark)

    Witt, Flemming; Nielsen, Jørn Flohr

    in Danish public hospitals work in a unique situation that makes the uncritical transfer of empowerment interventions intended to redesign their work difficult or even unfeasible. Analysis from an institutional perspective of the ongoing power struggle between agens of change at several levels in the Danish...

  11. Why is Danish so difficult to understand for fellow Scandinavians?

    NARCIS (Netherlands)

    Schüppert, Anja; Hilton, Nanna; Gooskens, Charlotte

    2016-01-01

    It has consistently been shown that among the three mainland Scandinavian languages, Danish is most difficult to understand for fellow Scandinavians. Recent research suggests that Danish is spoken significantly faster than Norwegian and Swedish. This finding might partly explain the asymmetric intel

  12. Why reference to the past is difficult for agrammatic speakers.

    Science.gov (United States)

    Bastiaanse, Roelien

    2013-04-01

    Many studies have shown that verb inflections are difficult to produce for agrammatic aphasic speakers: they are frequently omitted and substituted. The present article gives an overview of our search to understanding why this is the case. The hypothesis is that grammatical morphology referring to the past is selectively impaired in agrammatic aphasia. That is, verb inflections for past tense and perfect aspect are hard to produce. Furthermore, verb clusters that refer to the past will be affected as well, even if the auxiliary is in present tense, as in he has been writing a letter. It will be argued that all these verb forms referring to the past require discourse linking [Zagona, K. (2003). Tense and anaphora: Is there a tense-specific theory of coreference. In A. Barrs (Ed.), Anaphora: A reference guide (pp. 140-171). Oxford: Blackwell Publishing] and discourse linking is affected in agrammatic aphasia [Avrutin, S. (2006). Weak syntax. In K. Amunts, & Y. Grodzinsky (Eds.), Broca's region (pp. 49-62). New York: Oxford Press]. This hypothesis has been coined the PAst DIscourse LInking Hypothesis (PADILIH) [Bastiaanse, R., Bamyaci, E., Hsu, C.-J., Lee, J., Yarbay Duman, T., & Thompson, C.K. (2011). Time reference in agrammatic aphasia: A cross-linguistic study. Journal of Neurolinguistics, 24, 652-673]. The PADILIH has been tested in several languages and populations that have hardly been studied before in aphasiology: languages such as Turkish, Swahili and Indonesian were included, as well as monolingual and bilingual populations. In all these populations, the same test has been used: the Test for Assessing Reference of Time [Bastiaanse, R., Jonkers, R., & Thompson, C.K. (2008). Test for assessing reference of time (TART). Groningen: University of Groningen] to enable reliable comparisons between the languages. The results show that the PADILIH predicts the performance of agrammatic speakers very well: discourse-linked grammatical morphemes expressing time

  13. Effects of Multi-Tier Academic and Behavior Instruction on Difficult-to-Teach Students

    Science.gov (United States)

    Algozzine, Bob; Wang, Chuang; White, Richard; Cooke, Nancy; Marr, Mary Beth; Algozzine, Kate; Helf, Shawnna S.; Duran, Grace Zamora

    2012-01-01

    This article addresses the effects of 3-tiered comprehensive reading and behavior interventions on K-3 student outcomes in 7 urban elementary schools with a high prevalence of students considered difficult to teach. Specific features of each level of the implementation are described including screening and tier placement procedures, scheduling and…

  14. Success nonetheless : Making public utilities work in small-scale democracies despite difficult capital conditions

    NARCIS (Netherlands)

    Douglas, Scott

    2011-01-01

    A large part of the study of politics is dedicated to identifying the circumstances under which democracy will flourish. Putnam made a major contribution to this field through his concept of social capital as developed in Making Democracy Work. Putnam found that communities with a high number of civ

  15. Leadership and cooperation at the general medicine department of LMU Munich: Good grades despite difficult conditions.

    Science.gov (United States)

    Schelling, Jörg; Braun, Susanne

    2011-01-01

    The relevance of general medicine at German universities will increase over the next few years. Consequently, the discussion of teaching content and even more the improvement of the structures within the still small and dependent departments of general medicine are of major importance. The example of our department at LMU Munich shows which challenges for leadership and cooperation result from lack of financial and personnel structure. The project "cooperation culture" that the department has conducted in collaboration with the LMU Center for Leadership and People Management is presented as a means to promote leadership and cooperation. This project can serve as an inspiration for the coordinators of smaller departments of general medicine at other German universities that are also striving to improve their structure and their position within the university.

  16. An international perspective on the rights of juvenile offenders or "children living in exceptionally difficult conditions".

    Science.gov (United States)

    Monahan, Genevieve

    2003-08-01

    Substance user treatment providers, researchers, policy makers, and educators working in the juvenile justice field may be unaware of international policies governing the protection of youthful offenders. This presentation reviews the international rights of detained and incarcerated youth outlined in a variety of United Nations documents. Adolescents in contact with criminal justice systems have the right to the "highest attainable standard of health, both physical and mental." When substance abuse is involved they have the right to receive appropriate community-based treatment. Periods of contact with the criminal justice system may be one among very few opportunities to provide services for youth and these opportunities should not be wasted.

  17. When Your Child Is Difficult: Solve Your Toughest Child-Raising Problems with a Four-Step Plan That Works.

    Science.gov (United States)

    Silberman, Mel

    Written for parents, this book discusses four steps for dealing with children's difficult behavior. The book is divided into two parts. Part 1, "The Building Blocks," discusses baseline perspectives parents need to establish in order to effectively deal with difficult behavior. Topics covered include: (1) parents' dual roles as caregivers and…

  18. Transparent-cap-fitted colonoscopy shows higher performance with cecal intubation time in difficult cases

    Institute of Scientific and Technical Information of China (English)

    Hyung Hun Kim; Seun Ja Park; Moo In Park; Won Moor; Sung Eun Kim

    2012-01-01

    AIM:To investigate the efficacy of cap-fitted colonoscopy (CFC) with regard to cecal intubation time.METHODS:Two hundred and ninety-five patients undergoing screening colonoscopy at Gospel Hospital,Kosin University College of Medicine were enrolled in this randomized controlled trial between January and December 2010.Colonoscopies were conducted by a single endoscopist.Patient characteristics including age,sex,body mass index,history of abdominal surgery,quality of preparation,and the presence of diverticulosis were recorded.RESULTS:One hundred and fifty patients were allocated into a CFC group and 145 into a non-CFC (NCF)group.Cecal intubations were achieved in all patients.Cecal intubation time in the CFC group was significantly shorter than in the NCF group for specific conditions:age ≥ 60 years,prior abdominal surgery,and poor bowel preparation.The number of detected adenomas was higher in the CFC group than in the NCF group (P =0.040).CONCLUSION:CFC facilitated shortening of the cecal intubation time in difficult cases,and was more sensitive for detecting adenomas than was NCF.

  19. Edward’s syndrome: A rare cause of difficult intubation-utility of left molar approach

    Directory of Open Access Journals (Sweden)

    Teena Bansal

    2016-04-01

    Full Text Available Edward’s syndrome (trisomy 18 is an autosomal abnormality with dysmorphic face, visceral deformities and delayed mental and motor development including congenital heart disease. Challenges may arise during mask ventilation, laryngoscopy and/or intubation of the trachea due to dysmorphic face. Difficult airway cart should be kept ready. Left molar approach using a standard Macintosh blade improves the laryngoscopic view in patients with difficult midline laryngoscopy. We hereby present a case report of a 2 year old male child with Edward’s syndrome posted for evacuation and drainage of brain abscess, intubated successfully using left molar approach.

  20. Recent and historic sediment dynamics along Difficult Run, a suburban Virginia Piedmont stream

    Science.gov (United States)

    Hupp, Cliff R.; Noe, Gregory B.; Schenk, Edward R.; Bentham, Adam J.

    2012-01-01

    Suspended sediment is one of the major concerns regarding the quality of water entering the Chesapeake Bay. Some of the highest suspended-sediment concentrations occur on Piedmont streams, including Difficult Run, a tributary of the Potomac River draining urban and suburban parts of northern Virginia. Accurate information on catchment level sediment budgets is rare and difficult to determine. Further, the sediment trapping portion of sediment budget represents an important ecosystem service that profoundly affects downstream water quality. Our objectives, with special reference to human alterations to the landscape, include the documentation and estimation of floodplain sediment trapping (present and historic) and bank erosion along an urbanized Piedmont stream, the construction of a preliminary sediment balance, and the estimation of legacy sediment and recent development impacts. We used white feldspar markers to measure floodplain sedimentation rates and steel pins to measure erosion rates on floodplains and banks, respectively. Additional data were collected for/from legacy sediment thickness and characteristics, mill pond impacts, stream gaging station records, topographic surveying, and sediment density, texture, and organic content. Data were analyzed using GIS and various statistical programs. Results are interpreted relative to stream equilibrium affected by both post-colonial bottomland sedimentation (legacy) and modern watershed hardening associated with urbanization. Six floodplain/channel sites, from high to low in the watershed, were selected for intensive study. Bank erosion ranges from 0 to 470 kg/m/y and floodplain sedimentation ranges from 18 to 1369 kg/m/y (m refers to meters of stream reach). Upstream reaches are net erosional, while downstream reaches have a distinctly net depositional flux providing a watershed sediment balance of 2184 kg/m/y trapped within the system. The amounts of both deposition and erosion are large and suggest

  1. Recent and historic sediment dynamics along Difficult Run, a suburban Virginia Piedmont stream

    Science.gov (United States)

    Hupp, Cliff R.; Noe, Gregory B.; Schenk, Edward R.; Benthem, Adam J.

    2013-01-01

    Suspended sediment is one of the major concerns regarding the quality of water entering the Chesapeake Bay. Some of the highest suspended-sediment concentrations occur on Piedmont streams, including Difficult Run, a tributary of the Potomac River draining urban and suburban parts of northern Virginia. Accurate information on catchment level sediment budgets is rare and difficult to determine. Further, the sediment trapping portion of sediment budget represents an important ecosystem service that profoundly affects downstream water quality. Our objectives, with special reference to human alterations to the landscape, include the documentation and estimation of floodplain sediment trapping (present and historic) and bank erosion along an urbanized Piedmont stream, the construction of a preliminary sediment balance, and the estimation of legacy sediment and recent development impacts. We used white feldspar markers to measure floodplain sedimentation rates and steel pins to measure erosion rates on floodplains and banks, respectively. Additional data were collected for/from legacy sediment thickness and characteristics, mill pond impacts, stream gaging station records, topographic surveying, and sediment density, texture, and organic content. Data were analyzed using GIS and various statistical programs. Results are interpreted relative to stream equilibrium affected by both post-colonial bottomland sedimentation (legacy) and modern watershed hardening associated with urbanization. Six floodplain/channel sites, from high to low in the watershed, were selected for intensive study. Bank erosion ranges from 0 to 470 kg/m/y and floodplain sedimentation ranges from 18 to 1369 kg/m/y (m refers to meters of stream reach). Upstream reaches are net erosional, while downstream reaches have a distinctly net depositional flux providing a watershed sediment balance of 2184 kg/m/y trapped within the system. The amounts of both deposition and erosion are large and suggest

  2. Emotional distance to so-called difficult patients

    DEFF Research Database (Denmark)

    Michaelsen, Jette Joost

    2012-01-01

    patient, the avoidance strategy did not necessarily represent the terminal stage, since a nurse could revert to the compromise strategy. Some of the nurses experienced painful emotions regarding these interactions. Conclusions: The avoidance strategy (emotional distance) resulted in important social......Scand J Caring Sci; 2011 Emotional distance to so-called difficult patients Purpose: To explore nurses' relationships with patients they regard as being difficult. How do nurses feel about such patients and relate to them, and what are the consequences for nurse and patient? Design and methods....... Patients' case records were studied and four meetings with the staff were arranged to discuss the findings. Data collection lasted 18 months in all. Findings: Three strategies were identified: persuasion, avoidance (emotional distance), and compromise. Interestingly, in the relationship with a particular...

  3. If it's difficult to pronounce, it must be risky.

    Science.gov (United States)

    Song, Hyunjin; Schwarz, Norbert

    2009-02-01

    Low processing fluency fosters the impression that a stimulus is unfamiliar, which in turn results in perceptions of higher risk, independent of whether the risk is desirable or undesirable. In Studies 1 and 2, ostensible food additives were rated as more harmful when their names were difficult to pronounce than when their names were easy to pronounce; mediation analyses indicated that this effect was mediated by the perceived novelty of the substance. In Study 3, amusement-park rides were rated as more likely to make one sick (an undesirable risk) and also as more exciting and adventurous (a desirable risk) when their names were difficult to pronounce than when their names were easy to pronounce.

  4. Difficult airway equipment in departments of emergency medicine in Ireland: results of a national survey.

    LENUS (Irish Health Repository)

    Walsh, K

    2012-02-03

    BACKGROUND AND OBJECTIVE: Adverse effects associated with difficult airway management can be catastrophic and include death, brain injury and myocardial injury. Closed-malpractice claims have shown prolonged and persistent attempts at endotracheal intubation to be the most common situation leading to disastrous respiratory events. To date, there has been no evaluation of the types of difficult airway equipment currently available in Irish departments of emergency medicine. The objective of this survey was to identify the difficult airway equipment available in Irish departments of emergency medicine. METHODS: Departments of emergency medicine in the Republic of Ireland with at least one dedicated Emergency Medicine consultant were surveyed via telephone. RESULTS: All of the departments contacted held at least one alternative device on site for both ventilation and intubation. The most common alternative ventilation device was the laryngeal mask airway (89%). The most common alternative intubating device was the surgical airway device (100%). CONCLUSIONS: Irish departments of emergency medicine compare well with those in the UK and USA, when surveyed concerning difficult airway equipment. However, we believe that this situation could be further improved by training inexperienced healthcare providers in the use of the laryngeal mask airway and intubating laryngeal mask airway, by placing greater emphasis on the ready availability of capnography and by the increased use of portable difficult airway storage units.

  5. Families: from difficult to exceptional--one team's journey.

    Science.gov (United States)

    Baker, Marilyn Kay; Miers, Anne; Sulla, Stephanie; Vines, Heilia

    2007-01-01

    Families of patients need support when the hospital stay becomes more difficult than anticipated. Healthcare providers also need assistance when caring for them. A continuous improvement team, Caring for Exceptional Families, was initiated to develop a system with tools and interventions for a proactive multidisciplinary approach to identifying families at risk for negative behavior during the hospital experience. The process and outcomes of this team are described.

  6. Acute urinary retention and the difficult catheterization: current emergency management.

    Science.gov (United States)

    Sliwinski, Ania; D'Arcy, Frank T; Sultana, Ron; Lawrentschuk, Nathan

    2016-04-01

    Acute urinary retention (AUR) is a common presentation to emergency departments. This article updates the reader on the appropriate management, investigations and guidelines for AUR. It looks at the mechanism of normal micturition and describes the theories of AUR. It outlines urethral catheterization techniques for difficult cases, reviews suprapubic catheterization procedures and describes the management of AUR in polytrauma. Although emergency management is by bladder drainage, key points in the history and examination may expose significant, latent pathologies.

  7. The road to the synthesis of "difficult peptides".

    Science.gov (United States)

    Paradís-Bas, Marta; Tulla-Puche, Judit; Albericio, Fernando

    2016-02-07

    The last decade has witnessed a renaissance of peptides as drugs. This progress, together with advances in the structural behavior of peptides, has attracted the interest of the pharmaceutical industry in these molecules as potential APIs. In the past, major peptide-based drugs were inspired by sequences extracted from natural structures of low molecular weight. In contrast, nowadays, the peptides being studied by academic and industrial groups comprise more sophisticated sequences. For instance, they consist of long amino acid chains and show a high tendency to form aggregates. Some researchers have claimed that preparing medium-sized proteins is now feasible with chemical ligation techniques, in contrast to medium-sized peptide syntheses. The complexity associated with the synthesis of certain peptides is exemplified by the so-called "difficult peptides", a concept introduced in the 80's. This refers to sequences that show inter- or intra-molecular β-sheet interactions significant enough to form aggregates during peptide synthesis. These structural associations are stabilized and mediated by non-covalent hydrogen bonds that arise on the backbone of the peptide and-depending on the sequence-are favored. The tendency of peptide chains to aggregate is translated into a list of common behavioral features attributed to "difficult peptides" which hinder their synthesis. In this regard, this manuscript summarizes the strategies used to overcome the inherent difficulties associated with the synthesis of known "difficult peptides". Here we evaluate several external factors, as well as methods to incorporate chemical modifications into sequences, in order to describe the strategies that are effective for the synthesis of "difficult peptides". These approaches have been classified and ordered to provide an extensive guide for achieving the synthesis of peptides with the aforementioned features.

  8. An improved method to spot-weld difficult junctions

    Science.gov (United States)

    Ferrenz, Elizabeth E.; Amare, Andinet; Arumainayagam, Christopher R.

    2001-12-01

    Recent advances in spot-welding technology such as high frequency direct current inverter welders provide an improved and reproducible method to spot-weld difficult junctions. The importance of removing the oxide layers on metal surfaces, accurately delivering the weld pulse profile, and controlling the force applied to the materials during the welding process are discussed in the context of resistance spot-welding a molybdenum crystal to a tantalum loop and attaching a tungsten-rhenium thermocouple to the crystal.

  9. Difficultly Extractable Fixed Ammonium in Some Soils of China

    Institute of Scientific and Technical Information of China (English)

    CHENBIYUN; CHENGLILI; 等

    1999-01-01

    Ninety-three soil samples and 19 sedimentary rock samples collected from 21 provinces of China were analyzed for their contents of fixed ammonium and total N by Kjeldahl-HF method.Results showed that amount of difficultly extractable fixed ammonium(the fixed ammonium that is not determinable by Kjeldahl procedures commonly used for soils) in soils ranged from 0 to 202 mg kg-1,It was generally more than 50 mg kg-1 in soils in Changji and Turpan districts,Xinjiang,accounting for 3.2%-36.8% with an average of 13.9% of the total N.For some Orthents derived from purple shale and purple sandstone in Sichuan and Hunan provinces and Chao soils derived from secondary loess in Henan Province and Ningxia Autonomous Region it was generally around 30 mg kg-1,accounting for 4%-7% of the total soil N,and for most of the rest of soils studied,with the exception of some subsoils,no or trace difficultly extractable fixed ammonium could be detected.It was sugested that the difficultly extractable fixed ammonium was originated from parent rock,and for slightly weathered soils derived from parent materials rich in this form of N the Kjeldahl method might give underestimation of total soil N.

  10. Legal issues when a doctor's relationship with a "difficult" patient breaks down.

    Science.gov (United States)

    Skene, Loane L C

    2014-09-15

    The legal duties of a doctor attending a "difficult" patient with a serious condition do not end at the last consultation, especially in a small rural community. Doctors have a continuing obligation to ensure that the patient's health is not impaired because the clinical relationship has ended. This article suggests some steps that a doctor could take to fulfil the legal obligation in such a case.

  11. Contentious Conversations: Using Mediation Techniques in Difficult Clinical Ethics Consultations.

    Science.gov (United States)

    Fiester, Autumn

    2015-01-01

    Mediators utilize a wide range of skills in the process of facilitating dialogue and resolving conflicts. Among the most useful techniques for clinical ethics consultants (CECs)-and surely the least discussed-are those employed in acrimonious, hostile conversations between stakeholders. In the context of clinical ethics disputes or other bedside conflicts, good mediation skills can reverse the negative interactions that have prevented the creation of workable treatment plans or ethical consensus. This essay lays out the central framework mediators use in distinguishing positions from interests and describes a set of strategies for managing contentious ethics consultations or working with "difficult" patients, families, or patient-careprovider interactions.

  12. [Physical education, health and physical activities: difficult relationships].

    Science.gov (United States)

    Cogérino, Geneviève

    2016-06-08

    Physical education (PE) is an appropriate subject to investigate the links between physical activity (PA) and health. The current training of PE teachers tends to emphasize the link between PA and physical fitness, to the detriment of other health components. The occupational, environmental, cultural dimensions of PA are frequently overlooked. This article lists four topics related to PA-health links, which could be more extensively included in initial PE teacher training, on the basis of abundant scientific literature: 1. the diversity of exercise motives, according to the subject’s age, gender, ability, competence, living conditions, etc.; 2. the role of body image on the desire or reluctance of teenagers to perform PA or certain physical activities; 3. the evolution of motivations towards PA throughout life; 4. the impact of the PE teachers’ masculinist conceptions, consubstantial of PE, due to its link with sport. These topics could contribute to a better analysis of what individuals seek through PA and the PA-health links they value. They could help teachers to adjust their teaching to contribute to the pupils’ health and not solely their physical fitness..

  13. High Metal Removal Rate Process for Machining Difficult Materials

    Energy Technology Data Exchange (ETDEWEB)

    Bates, Robert; McConnell, Elizabeth

    2016-06-29

    Machining methods across many industries generally require multiple operations to machine and process advanced materials, features with micron precision, and complex shapes. The resulting multiple machining platforms can significantly affect manufacturing cycle time and the precision of the final parts, with a resultant increase in cost and energy consumption. Ultrafast lasers represent a transformative and disruptive technology that removes material with micron precision and in a single step manufacturing process. Such precision results from athermal ablation without modification or damage to the remaining material which is the key differentiator between ultrafast laser technologies and traditional laser technologies or mechanical processes. Athermal ablation without modification or damage to the material eliminates post-processing or multiple manufacturing steps. Combined with the appropriate technology to control the motion of the work piece, ultrafast lasers are excellent candidates to provide breakthrough machining capability for difficult-to-machine materials. At the project onset in early 2012, the project team recognized that substantial effort was necessary to improve the application of ultrafast laser and precise motion control technologies (for micromachining difficult-to-machine materials) to further the aggregate throughput and yield improvements over conventional machining methods. The project described in this report advanced these leading-edge technologies thru the development and verification of two platforms: a hybrid enhanced laser chassis and a multi-application testbed.

  14. Enjeux, difficultés et modalités de l’expression sur le travail : point de vue de la clinique médicale du travail Concerns in occupational medicine about stakes, difficulties and conditions of dispute about work Retos, dificultades y modalidades de la expresión sobre el trabajo : punto de vista de la clínica médica del trabajo

    Directory of Open Access Journals (Sweden)

    Philippe Davezies

    2012-11-01

    Full Text Available L’intensification du travail oblige les salariés de tous secteurs et de tous niveaux hiérarchiques à des arbitrages serrés entre les différents objectifs du travail. Faute d’espace de discussion, chacun se débrouille seul, avec comme conséquence une individualisation des questions, une montée des conflits et une dégradation de la performance. Cette situation appelle la mise en place des espaces d’expression sur le travail, prévus dans la loi française. Cette orientation se heurte cependant à une difficulté : l’activité du travailleur est en avance sur sa conscience et beaucoup plus riche que ce qu’il est capable d’exprimer. Des espaces autonomes d’élaboration des enjeux du travail sont nécessaires pour créer les conditions d’une discussion avec la hiérarchie susceptible de porter ses fruits dans le domaine de la santé au travail et dans celui de la performance globale de l’entreprise.Regardless of the job sector or hierarchical position, work intensification forces workers to make hard choices between the different goals they are expected to meet. Due to a lack of discussion, people have to manage by themselves. The consequences are a rising tide of interpersonal conflicts and occupational stress associated with a deterioration in overall performance. This situation requires that time and places be set aside for work disputes, in keeping with French law. Nevertheless, there is a serious difficulty in actualizing this law: the worker’s tacit knowledge of his work is much richer than his conscious ability to verbalize and describe the work activity. Self-governed, employee-reserved times and places for working out the stakes at issue are necessary before discussing with the administration if we are to arrive at favourable results for occupational health and overall company performance.La intensificación del trabajo obliga a los empleados, independientemente del sector o del nivel jerárquico al que

  15. Paradoxical pop-ups: Why are they difficult to catch?

    Science.gov (United States)

    McBeath, Michael K.; Nathan, Alan M.; Bahill, A. Terry; Baldwin, David G.

    2008-08-01

    Professional baseball players occasionally find it difficult to gracefully approach seemingly routine pop-ups. We describe a set of towering pop-ups with trajectories that exhibit cusps and loops near the apex. For a normal fly ball the horizontal velocity continuously decreases due to drag caused by air resistance. For pop-ups the Magnus force is larger than the drag force. In these cases the horizontal velocity initially decreases like a normal fly ball, but after the apex, the Magnus force accelerates the horizontal motion. We refer to this class of pop-ups as paradoxical because they appear to misinform the typically robust optical control strategies used by fielders and lead to systematic vacillation in running paths, especially when a trajectory terminates near the fielder. Former major league infielders confirm that our model agrees with their experiences.

  16. Various applications of endoscopic scissors in difficult endoscopic interventions.

    Science.gov (United States)

    Kee, Won-Ju; Park, Chang-Hwan; Chung, Kyoung-Myeun; Park, Seon-Young; Jun, Chung-Hwan; Ki, Ho-seok; Kim, Hyun-Soo; Choi, Sung-Kyu; Rew, Jong-Sun

    2014-05-01

    Endoscopic scissors offer a benefit over other devices by avoiding potential complications related to thermal and mechanical injury of surrounding structures. We describe our experience with endoscopic scissors in three difficult endoscopic interventions. A fishbone embedded in the esophageal wall penetrated very close to the pulsating aorta and the bronchus. The fishbone was cut in half by endoscopic scissors and removed without injury to adjacent organs. A gastric submucosal tumor with an insulated core that could not be resected by electrosurgical devices was cut using endoscopic scissors following endoloop placement. Extravascular coil migration after transcatheter arterial embolization resulted in a duodenal ulcer. The metallic coil on the duodenal ulcer was cut by endoscopic scissors without mechanical or thermal injury.

  17. A Difficult Choice for Newspapers: Advertisers or Readers?

    Directory of Open Access Journals (Sweden)

    Barış Bulunmnaz

    2012-03-01

    Full Text Available Almost entire advertisement revenues are acquired by newspapers in print media. Along with rapid technological developments and the intensive competitive climate in newspaper sector; the gulf between high cost and low revenue has widened, and newspapers are obliged to subsidize this deficit with advertisement revenues. Newspapers in Turkey have two separate groups of customers. The first one of those groups is the advertisers and the other is the readers of that newspaper. Due to economic reasons, this compulsory dependency on advertisement revenue causes newspapers to fall into a paradox between advertisers and readers. In this article we will firstly explain advertisement and its place in marketing; then give information about the advertising sector and the distribution of Turkish advertising pie among media. Later, the relation between advertisers and readers that place newspapers in difficult circumstances will be explicated in detail, analysis and assessments will be made regarding about it.

  18. Antiviral therapy for "difficult-to-treat" hepatitis C virus-infected patients

    Institute of Scientific and Technical Information of China (English)

    Tatsuo Kanda; Osamu Yokosuka; Masao Omata

    2013-01-01

    Objective To review the updated research on direct antiviral agents (DAAs)-including regimens for hepatitis C virus (HCV),and focus on "difficult-to-treat" HCV-infected patients.Data sources The literature concerning DAAs and hepatitis C cited in this review was collected from PubMed and Google Scholar databases published in English up to July 2013.Study selection Data from published articles regarding HCV and DAAs in clinical trials and in clinical use were identified and reviewed.Results It was recognized that some "difficult-to-treat" patients would still exist,even though stronger treatments using such as DAAs,including telaprevir and boceprevir,which lead to higher sustained virological response rates,are available.Such patients include those with advanced fibrosis/cirrhosis,elderly persons,children,HCV-human immunodeficiency virus co-infected patients,HCV-infected recipients,and so on.Conclusions Certain "difficult-to-treat" patients would still exist,even though stronger treatment is available.Although evidence from clinical trials is still lacking,interferon-sparing regimens could have stronger effects for eradicating HCV in such cases.

  19. Optical modulator including grapene

    Energy Technology Data Exchange (ETDEWEB)

    Liu, Ming; Yin, Xiaobo; Zhang, Xiang

    2016-06-07

    The present invention provides for a one or more layer graphene optical modulator. In a first exemplary embodiment the optical modulator includes an optical waveguide, a nanoscale oxide spacer adjacent to a working region of the waveguide, and a monolayer graphene sheet adjacent to the spacer. In a second exemplary embodiment, the optical modulator includes at least one pair of active media, where the pair includes an oxide spacer, a first monolayer graphene sheet adjacent to a first side of the spacer, and a second monolayer graphene sheet adjacent to a second side of the spacer, and at least one optical waveguide adjacent to the pair.

  20. Comparison of Mallampati test with lower jaw protrusion maneuver in predicting difficult laryngoscopy and intubation

    Directory of Open Access Journals (Sweden)

    Muhammad Irfan Ul Haq

    2013-01-01

    Full Text Available Background: Failure to maintain a patent airway is one of the commonest causes of anesthesia-related morbidity and mortality. Many protocols, algorithms, and different combinations of tested methods for airway assessment have been developed to predict difficult laryngoscopy and intubation. The reported incidence of a difficult intubation varies from 1.5% to 13%. The objective of this study was to compare Mallampati test (MT with lower jaw protrusion (LJP maneuver in predicting difficult laryngoscopy and intubation. Materials and Methods: Seven hundred and sixty patients were included in the study. All the patients underwent MT and LJP maneuver for their airway assessment. After a standardized technique of induction of anesthesia, primary anesthetist performed laryngoscopy and graded it according to the grades described by Cormack and Lehane. Sensitivity, specificity, accuracy, and positive predictive value (PPV and negative predictive value (NPV were calculated for both these tests with 95% confidence interval (CI using conventional laryngoscopy as gold standard. Area under curve was also calculated for both, MT and LJP maneuver. A P < 0.05 was taken as significant. Results: LJP maneuver had higher sensitivity (95.9% vs. 27.1%, NPV (98.7% vs. 82.0%, and accuracy (90.1% vs. 80.3% when compared to MT in predicting difficult laryngoscopy and intubation. Both tests, however, had similar specificity and PPV. There was marked difference in the positive and negative likelihood ratio between LJP and MT. Similarly, the area under the curve favored LJP maneuver over MT. Conclusion: The results of this study show that LJP maneuver is a better test to predict difficult laryngoscopy and tracheal intubation. We recommend the addition of this maneuver to the routine preoperative evaluation of airway.

  1. Visual Impairment, Including Blindness

    Science.gov (United States)

    ... Who Knows What? Survey Item Bank Search for: Visual Impairment, Including Blindness Links updated, April 2017 En ... doesn’t wear his glasses. Back to top Visual Impairments in Children Vision is one of our ...

  2. CO_2 insufflation for potentially difficult colonoscopies:Efficacy when used by less experienced colonoscopists

    Institute of Scientific and Technical Information of China (English)

    Toshio Uraoka; Jun Kato; Motoaki Kuriyama; Keisuke Hori; Shin Ishikawa; Keita Harada; Koji Takemoto; Sakiko Hiraoka; Hideyuki Fujita; Joichiro Horii; Yutaka Saito; Kazuhide Yamamoto

    2009-01-01

    AIM: To clarify the effectiveness of CO_2 insufflation in potentially difficult colonoscopy cases, particularly in relation to the experience level of colonoscopists. METHODS: One hundred twenty potentially difficult cases were included in this study, which involved females with a low body mass index and patients with earlier abdominal and/or pelvic open surgery or previously diagnosed left-side colon diverticulosis. Patients receiving colonoscopy examinations without sedation using a pediatric variable-stiffness colonoscope were divided into two groups based on either CO_2 or standard air insufflation. Both insufflation procedures were also evaluated according to the experience level of the respective colonoscopists who were divided into an experienced colonoscopist (EC) group and a less experienced colonoscopist (LEC) group. Study measurements included a 100-mm visual analogue scale (VAS) for patient pain during and after colonoscopy examinations, in addition to insertion to the cecum and withdrawal times. RESULTS: Examination times did not differ, however, VAS scores in the CO_2 group were significantly better than in the air group (P < 0.001, two-way ANOVA) from immediately after the procedure and up to 2 h later. There were no significant differences between either insufflation method in the EC group (P = 0.29), however, VAS scores for CO_2 insufflation were significantly better than air insufflation in the LEC group (P = 0.023) immediately after colonoscopies and up to 4 h afterwards. CONCLUSION: CO_2 insufflation reduced patient pain after colonoscopy in potentially difficult cases when performed by LECs.

  3. Bronchogenic Cyst in a Patient with Difficult Asthma

    Directory of Open Access Journals (Sweden)

    Soheil Ben Razavi

    2010-03-01

    Full Text Available Difficult to treat asthma is an asthma syndrome that brings in our mind other differentials. Mediastinal masses are not common findings, but are important variables. Bronchogenic cyst is a congenital anomaly of the foregut that is typically found in the mediastinum and diagnosed accidentally. We present a 4-year-old girl with allergic asthma that began at 8-months of age and finally a bronchogenic cyst was detected in this patient. The patient had history of asthma since she was eight months old. She had a history of several asthma attacks which had partly responded to asthma management. During the last episodes of asthma attacks, she was hospitalized in Pediatric Intensive Care Unit. Imaging studies showed a 4×3 cm mass in the posterior part of the thoracic cavity that had led to tracheal narrowing was found for which the patient underwent thoracotomy and in surgical exploration a cyst that had compressed the thoracic trachea. Pathological examination of the cyst revealed a bronchogenic cyst. Bronchogenic cyst is an uncommon developmental abnormality but in a patient with obstructive pattern of airways it should be considered in differential diagnosis of asthma, especially if the asthma management is not successful.

  4. Interactive removal and ground truth for difficult shadow scenes.

    Science.gov (United States)

    Gong, Han; Cosker, Darren

    2016-09-01

    A user-centric method for fast, interactive, robust, and high-quality shadow removal is presented. Our algorithm can perform detection and removal in a range of difficult cases, such as highly textured and colored shadows. To perform detection, an on-the-fly learning approach is adopted guided by two rough user inputs for the pixels of the shadow and the lit area. After detection, shadow removal is performed by registering the penumbra to a normalized frame, which allows us efficient estimation of nonuniform shadow illumination changes, resulting in accurate and robust removal. Another major contribution of this work is the first validated and multiscene category ground truth for shadow removal algorithms. This data set containing 186 images eliminates inconsistencies between shadow and shadow-free images and provides a range of different shadow types such as soft, textured, colored, and broken shadow. Using this data, the most thorough comparison of state-of-the-art shadow removal methods to date is performed, showing our proposed algorithm to outperform the state of the art across several measures and shadow categories. To complement our data set, an online shadow removal benchmark website is also presented to encourage future open comparisons in this challenging field of research.

  5. Interactive removal and ground truth for difficult shadow scenes

    Science.gov (United States)

    Gong, Han; Cosker, Darren

    2016-09-01

    A user-centric method for fast, interactive, robust and high-quality shadow removal is presented. Our algorithm can perform detection and removal in a range of difficult cases: such as highly textured and colored shadows. To perform detection an on-the-fly learning approach is adopted guided by two rough user inputs for the pixels of the shadow and the lit area. After detection, shadow removal is performed by registering the penumbra to a normalized frame which allows us efficient estimation of non-uniform shadow illumination changes, resulting in accurate and robust removal. Another major contribution of this work is the first validated and multi-scene category ground truth for shadow removal algorithms. This data set containing 186 images eliminates inconsistencies between shadow and shadow-free images and provides a range of different shadow types such as soft, textured, colored and broken shadow. Using this data, the most thorough comparison of state-of-the-art shadow removal methods to date is performed, showing our proposed new algorithm to outperform the state-of-the-art across several measures and shadow category. To complement our dataset, an online shadow removal benchmark website is also presented to encourage future open comparisons in this challenging field of research.

  6. The Difficult-to-Control Asthmatic: A Systematic Approach

    Directory of Open Access Journals (Sweden)

    Le Annie V

    2006-09-01

    Full Text Available Abstract With the judicious use of inhaled corticosteroids, β2 agonists, and leukotriene modifiers, most patients with asthma are easily controlled and managed. However, approximately 5% of asthmatics do not respond to standard therapy and are classified as "difficult to control." 1 Typically, these are patients who complain of symptoms interfering with daily living despite long-term treatment with inhaled corticosteroids in doses up to 2,000 μg daily. Many factors can contribute to poor response to conventional therapy, and especially for these patients, a systematic approach is needed to identify the underlying causes. First, the diagnosis of asthma and adherence to the medication regimen should be confirmed. Next, potential persisting exacerbating triggers need to be identified and addressed. Concomitant disorders should be discovered and treated. Lastly, the impact and implications of socioeconomic and psychological factors on disease control can be significant and should be acknowledged and discussed with the individual patient. Less conventional and novel strategies for treating corticosteroid-resistant asthma do exist. However, their use is based on small studies that do not meet evidence-based criteria; therefore, it is essential to sort through and address the above issues before reverting to other therapy.

  7. Bronchogenic cyst in a patient with difficult asthma.

    Science.gov (United States)

    Ben Razavi, Soheil; Bemanian, Mohammad Hassan; Taghipoor, Shokooh; Moghadam, Reza Nafisi; Behnamfar, Zahra

    2010-03-01

    Difficult to treat asthma is an asthma syndrome that brings in our mind other differentials. Mediastinal masses are not common findings, but are important variables. Bronchogenic cyst is a congenital anomaly of the foregut that is typically found in the mediastinum and diagnosed accidentally. We present a 4-year-old girl with allergic asthma that began at 8-months of age and finally a bronchogenic cyst was detected in this patient. The patient had history of asthma since she was eight months old. She had a history of several asthma attacks which had partly responded to asthma management. During the last episodes of asthma attacks, she was hospitalized in Pediatric Intensive Care Unit. Imaging studies showed a 4x3 cm mass in the posterior part of the thoracic cavity that had led to tracheal narrowing was found for which the patient underwent thoracotomy and in surgical exploration a cyst that had compressed the thoracic trachea. Pathological examination of the cyst revealed a bronchogenic cyst. Bronchogenic cyst is an uncommon developmental abnormality but in a patient with obstructive pattern of airways it should be considered in differential diagnosis of asthma, especially if the asthma management is not successful.

  8. [Difficult respiratory management in a patient with bilateral giant bullae].

    Science.gov (United States)

    Fujita, Ayaka; Hashiba, Eiji; Takahira, Yoko; Kitayama, Masatou; Tubo, Toshihito; Hirota, Kazuyoshi

    2009-10-01

    We report a case of bilateral giant bullae in a patient with multiple traumas. He had his arm amputated at the shoulder because of a machine accident and admitted to our hospital. Chest X-ray showed right-sided pneumothorax with bilateral giant bullae. Trimming of the stump was performed immediately after the placement of a right chest tube. He gradually developed hypoxia and hypercapnia with acidemia during the operation because of atelectasis due to sputum. Postoperatively, enlargement of right giant bulla led to frequent respiratory failure and he received a bilateral bullectomy through a median sternotomy 3 weeks after the accident. It was difficult to ventilate him due to air leak from the bilateral bulla and SpO2 dropped to below 70% with 100% oxygen. We continued the operation with standby extracorporeal membrane oxygenator (ECMO). Although the operation was finished without ECMO finally, ECMO had better been kept ready during anethesia with giant bullae when life threatening complication may occur at any point.

  9. Application of Kinesio Taping method for newborn swallowing difficultly

    Science.gov (United States)

    Lin, Chien-Lin; Wu, Wei-Ting; Chang, Ke-Vin; Lin, Hong-Yi; Chou, Li-Wei

    2016-01-01

    Abstract Background: Preterm infants are at an increased risk of sucking problems, swallowing difficulty, and poor nourishment. During the neonatal period, the neurobehavioral organization of a preterm baby is poor compared with that of appropriate gestational age infants. Kinesio Taping has been widely used for edema control, joint protection, and proprioception training. With the help of augmentation of the sensory input for muscle facilitation and inhibition through tapping, the coordination of the target muscle groups can be improved. Until now, no research is available on the use of Kinesio Taping for the swallowing difficulty of infant. Methods: We reported a preterm infant suffering from brain edema at birth and swallowing difficultly until 40 weeks. The swallowing reflex was delayed. Moreover, lip closure and rooting reflex combined with the dysfunction grade of jaw movement were poor. We performed KT methods on the baby under the theory of the direction of the tape for facilitate or inhibit the muscle. Result: After the Kinesio Taping treatment, the sucking function was improved with good lip closure.One week later, the baby was discharged without the use of an oral gastric tube. Conclusion: Kinesio Taping contributed significantly to the improvement of impaired sucking and swallowing and could be implemented as a regular rehabilitative approach for infants suffering from these difficulties. PMID:27495080

  10. [The invention of the concept of continuing on in during difficult times].

    Science.gov (United States)

    Major, Francine A

    2008-12-01

    The concept inventing process has been useful in the emergence of a new concept, continuing on during difficult time, with its definition including three unique essences and its relation to the Human becoming ontology. Concept inventing is a process of concept development that was introduced by R.R. Parse at the end of 1990's. It aims at synthesizing the researcher's preliminary understanding of a concept. The result is a conceptual definition that expands knowledge and guides research in the study of lived experiences. The conceptual definition of continuing on during difficult time is: persevering amid what is suffering with the engagements-disengagements as a new way of moving on is emerging with the hoping of the possibles. In transposing this definition in a theoretical structure, it evolves in: powering valuing in the connecting-separating of generating imaging. Implications for nursing research and practice are stated.

  11. The Difficult Way of Social Psychology in Russia

    Directory of Open Access Journals (Sweden)

    Galina M. Andreeva

    2009-01-01

    Full Text Available The article describes the main stages and directions of the development of social psychology in USSR and Russia. The comparison of theoretical approaches of Russian and Western social psychology is carried out. Special emphasis is made on the problem of social cognition and coping, which are important in the conditions of changing reality. New professional tasks of social psychology are discussed. The necessity of finding a new paradigm in social psychological investigations in conditions of cardinal transformations and ambiguity is stated as well as vectors and tendencies of its elaboration.

  12. Analytic device including nanostructures

    KAUST Repository

    Di, Fabrizio, E.

    2015-07-02

    A device for detecting an analyte in a sample comprising: an array including a plurality of pixels, each pixel including a nanochain comprising: a first nanostructure, a second nanostructure, and a third nanostructure, wherein size of the first nanostructure is larger than that of the second nanostructure, and size of the second nanostructure is larger than that of the third nanostructure, and wherein the first nanostructure, the second nanostructure, and the third nanostructure are positioned on a substrate such that when the nanochain is excited by an energy, an optical field between the second nanostructure and the third nanostructure is stronger than an optical field between the first nanostructure and the second nanostructure, wherein the array is configured to receive a sample; and a detector arranged to collect spectral data from a plurality of pixels of the array.

  13. How difficult is inference of mammalian causal gene regulatory networks?

    Science.gov (United States)

    Djordjevic, Djordje; Yang, Andrian; Zadoorian, Armella; Rungrugeecharoen, Kevin; Ho, Joshua W K

    2014-01-01

    Gene regulatory networks (GRNs) play a central role in systems biology, especially in the study of mammalian organ development. One key question remains largely unanswered: Is it possible to infer mammalian causal GRNs using observable gene co-expression patterns alone? We assembled two mouse GRN datasets (embryonic tooth and heart) and matching microarray gene expression profiles to systematically investigate the difficulties of mammalian causal GRN inference. The GRNs were assembled based on > 2,000 pieces of experimental genetic perturbation evidence from manually reading > 150 primary research articles. Each piece of perturbation evidence records the qualitative change of the expression of one gene following knock-down or over-expression of another gene. Our data have thorough annotation of tissue types and embryonic stages, as well as the type of regulation (activation, inhibition and no effect), which uniquely allows us to estimate both sensitivity and specificity of the inference of tissue specific causal GRN edges. Using these unprecedented datasets, we found that gene co-expression does not reliably distinguish true positive from false positive interactions, making inference of GRN in mammalian development very difficult. Nonetheless, if we have expression profiling data from genetic or molecular perturbation experiments, such as gene knock-out or signalling stimulation, it is possible to use the set of differentially expressed genes to recover causal regulatory relationships with good sensitivity and specificity. Our result supports the importance of using perturbation experimental data in causal network reconstruction. Furthermore, we showed that causal gene regulatory relationship can be highly cell type or developmental stage specific, suggesting the importance of employing expression profiles from homogeneous cell populations. This study provides essential datasets and empirical evidence to guide the development of new GRN inference methods for

  14. Why is it so difficult to measure big G?

    Science.gov (United States)

    Faller, James

    2015-04-01

    The determination of the Newtonian constant of gravitation, big G, continues to be one of Nature's greatest challenges to the skills and cunning of experimental physicists. The reasons: Big G is small, scientists are human, and error budgets are flawed. In spite of the fact that on the scale of the Universe, big G's effects are so big as to single handedly hold everything together, on the scale of a single research laboratory, big G's effects are so small that they go unnoticed. And, it is this ``smallness'' that makes the determination of this (seemingly unrelated to the rest of physics) fundamental constant so difficult. Furthermore, because they are human, scientists want to get the ``right'' (read previously obtained) answer; and this goal can affect their otherwise good judgment. Finally, error budgets are fundamentally flawed because they cannot make allowances for error sources that have not been thought of. During its nearly 300 year measurement history, the accuracy with which G is known has barely increased by three orders of magnitude; during the past 30 years the progress, measured by agreement rather than claimed accuracy of individual measurements, has been essentially zero. Nevertheless, this Mount Everest of precision measurement continues to provide an experimental challenge upon which metrologists can hone their laboratory skills for generations to come. Finally, this presentation will be understandable and interesting for ``students of all ages.'' In this year of GR100, Einstein will be mentioned more than once, and my hope is that some of you who would not normally ``risk'' attending a talk outside of your own specialty or discipline will consider coming to this one.

  15. 我国骨盆恶性肿瘤外科治疗面临的难点和挑战%The challenges and difficult issues on surgical management of malignant pelvic tumors in China

    Institute of Scientific and Technical Information of China (English)

    牛晓辉; 徐万鹏

    2013-01-01

    The prognosis of malignant pelvic tumor is very poor although the incidence of them is not so high. In recent years, the surgical management in China has made great progress in many institutions. However, the challenges and difficult issues still exist. In this commentary, some important issues including anatomy and imaging of the pelvis, diagnosis dilemma, resection with adequate surgical margin, reconstruction, recurrence, complications, as well as national conditions are reviewed.

  16. Does ultrasonographic volume of the thyroid gland correlate with difficult intubation? An observational study

    Directory of Open Access Journals (Sweden)

    Basak Ceyda Meco

    Full Text Available BACKGROUND AND OBJECTIVES: Preoperative ultrasonographic evaluation of the thyroid gland done by surgeons could let us foresee airway management challenges. The aim of this observational study was to evaluate the effects of thyroid-related parameters assessed preoperatively by surgeons via ultrasonography and chest X-ray on intubation conditions. METHODS: Fifty patients undergoing thyroid surgery were enrolled. Thyromental distance, Mallampati score, neck circumference and range of neck movement were evaluated before the operation. Thyroid volume, signs of invasion or compression and tracheal deviation on chest X-ray were also noted. The intubation conditions were assessed with Cormack and Lehane score and the intubation difficulty scale. Statistical analyses were done with SPSS 15.0 software. RESULTS: The mean thyroid volume of the patients was 26.38 ± 14 mL. The median intubation difficulty scale was 1 (0-2. Thyromental distance (p = 0.011; r = 0.36; 95% CI 0.582-0.088, Mallampati score (p = 0.041; r = 0.29; 95% CI 0.013-0.526, compression or invasion signs (p = 0.041; r = 0.28; 95% CI 0.006-0.521 and tracheal deviation on chest X-ray (p = 0.041; r = 0.52; 95% CI 0.268-0.702 were correlated with intubation difficulty scale. Also patients were classified into two groups related to their intubation difficulty scale (Group I, n = 19: intubation difficulty scale = 0; Group II, n = 31: 1 < intubation difficulty scale ≤ 5 and difficult intubation predictors and thyroid-related parameters were compared. Only Mallampati score was significantly different between groups (p = 0.025. CONCLUSION: The thyroid volume is not associated with difficult intubation. However clinical assessment parameters may predict difficult intubation.

  17. Topical therapy with high-volume budesonide nasal irrigations in difficult-to-treat chronic rhinosinusitis

    Directory of Open Access Journals (Sweden)

    Eduardo Macoto Kosugi

    2016-04-01

    Full Text Available ABSTRACT INTRODUCTION: Chronic rhinosinusitis (CRS is termed difficult-to-treat when patients do not reach acceptable level of control despite adequate surgery, intranasal corticosteroid treatment and up to 2 short courses of systemic antibiotics or corticosteroids in the preceding year. Recently, high-volume corticosteroid nasal irrigations have been recommended for CRS treatment. OBJECTIVE: To assess high-volume budesonide nasal irrigations for difficult-to-treat CRS. METHODS: Prospective uncontrolled intervention trial. Participants were assessed before- and 3 months after nasal irrigation with 1 mg of budesonide in 500 mL of saline solution daily for 2 days. Subjective (satisfactory clinical improvement and objective (SNOT-22 questionnaire and Lund-Kennedy endoscopic scores assessments were performed. RESULTS: Sixteen patients were included, and 13 (81.3% described satisfactory clinical improvement. SNOT-22 mean scores (50.2-29.6; p = 0.006 and Lund-Kennedy mean scores (8.8-5.1; p = 0.01 improved significantly. Individually, 75% of patients improved SNOT-22 scores, and 75% improved Lund-Kennedy scores after high volume budesonide nasal irrigations. CONCLUSION: High-volume corticosteroid nasal irrigations are a good option in difficult-to-treat CRS control of disease, reaching 81.3% success control and significant improvement of SNOT-22 and Lund-Kennedy scores.

  18. [Inadequate management of a difficult airway. Case SENSAR of the trimester].

    Science.gov (United States)

    2015-01-01

    A clinical case reported to SENSAR is presented (www.sensar.org). A patient came to the operating room for surgery for parathyroidectomy. She had several predictors of difficult airway management, including a story of difficulties in previous intubations in other hospitals, as the patient reported. Therefore, after evaluation in preoperative consultation, fibreoptic bronchoscopy intubation was recommended. The day of surgery after induction of general anesthesia direct laryngoscopy was performed, without recognizing any glottic structure (Cormack-Lehane grade iv). Conventional laryngoscope was changed to a videolaryngoscope (Airtraq(®)) to try to improve the laryngoscopic view, but there were difficulties with handling and insertion of it, causing minor injuries to the lingual mucosa. Finally, tracheal intubation was achieved after several attempts. Analysis of the incident revealed the active error due to lack of experience of the professional who performed intubation maneuvers, favored by latent factors or contributors as were the complex pathology of the patient and the absence of protocols to difficult airway management in the hospital. Communication and analysis of this incident served to highlight the importance of the security protocols in Anesthesia, and as a result a working group that conducted the current algorithm approach to a difficult airway management was formed, established guidelines for further information patient and deals since clinical training and professional practice for the management of airway devices availables in the hospital.

  19. Being Included and Excluded

    DEFF Research Database (Denmark)

    Korzenevica, Marina

    2016-01-01

    Following the civil war of 1996–2006, there was a dramatic increase in the labor mobility of young men and the inclusion of young women in formal education, which led to the transformation of the political landscape of rural Nepal. Mobility and schooling represent a level of prestige that rural...... people regard as a prerequisite for participating in local community politics. Based on a fieldwork in two villages of Panchthar district in eastern Nepal, this article explores how these changes strengthen or weaken women’s political agency and how this is reflected in their participation in community...... politics. It analyzes how formal education and mobility either challenge or reinforce traditional gendered norms which dictate a lowly position for young married women in the household and their absence from community politics. The article concludes that women are simultaneously excluded and included from...

  20. Occasional finding of mesenteric lipodystrophy during laparoscopy: A difficult diagnosis

    Institute of Scientific and Technical Information of China (English)

    2007-01-01

    Mesenteric lipodystrophy is a rare pathological condition affecting the mesentery. Its initial presentation is typically asymptomatic. Pathological characteristics are unspecific, and generally attributed to inflammation, unless the diagnosis is suspected. Laparoscopy done for other reasons has been, as in this case, unsuccessful in providing evidence for the correct diagnosis, thus requiring laparotomy due to lack of diagnostic tissue. After 6 mo no further medical therapy is required, as the patient remains asymptomatic. Discussion of this case and a brief review of the literature are presented in the following paragraphs.

  1. [The difficult history of first french national Codex].

    Science.gov (United States)

    Flahaut, J

    2000-01-01

    The first national Codex appeared in 1818. It was written in latin, and its french translation was published at the end of 1819. The Journal de pharmacie et des sciences accessoires, published by the Société de pharmacie de Paris, blamed on several occasions and in a very hard fashion some of its contents and specially the conditions of its publication. An action was brought against the private publisher of the Codex. The second edition of the Codex will be published only in 1837, in a deeply corrected form.

  2. A rare reason for difficult intubation on neonates: Fraser syndrome

    Directory of Open Access Journals (Sweden)

    Selvi Gulasi

    2016-09-01

    Full Text Available Fraser Syndrome is a rare genetic disease with autosomal recessive inheritance, characterized with cryptophtalmos, cutaneous syndactyly, laryngeal and genital anomalies. To provide for additional preparation during the opening of the airway, knowing that there is also a condition of laryngeal atresia or stenosis accompanied to syndrome can be life-saving. In this article a neonate case with laryngeal anomalies whose findings were consistent with the Fraser Syndrome was discussed with the literature. [Cukurova Med J 2016; 41(3.000: 600-603

  3. Atrophic Vaginitis in Breast Cancer Survivors: A Difficult Survivorship Issue

    Directory of Open Access Journals (Sweden)

    Joanne Lester

    2015-03-01

    Full Text Available Management of breast cancer includes systematic therapies including chemotherapy and endocrine therapy can lead to a variety of symptoms that can impair the quality of life of many breast cancer survivors. Atrophic vaginitis, caused by decreased levels of circulating estrogen to urinary and vaginal receptors, is commonly experienced by this group. Chemotherapy induced ovarian failure and endocrine therapies including aromatase inhibitors and selective estrogen receptor modulators can trigger the onset of atrophic vaginitis or exacerbate existing symptoms. Symptoms of atrophic vaginitis include vaginal dryness, dyspareunia, and irritation of genital skin, pruritus, burning, vaginal discharge, and soreness. The diagnosis of atrophic vaginitis is confirmed through patient-reported symptoms and gynecological examination of external structures, introitus, and vaginal mucosa. Lifestyle modifications can be helpful but are usually insufficient to significantly improve symptoms. Non-hormonal vaginal therapies may provide additional relief by increasing vaginal moisture and fluid. Systemic estrogen therapy is contraindicated in breast cancer survivors. Continued investigations of various treatments for atrophic vaginitis are necessary. Local estrogen-based therapies, DHEA, testosterone, and pH-balanced gels continue to be evaluated in ongoing studies. Definitive results are needed pertaining to the safety of topical estrogens in breast cancer survivors.

  4. What Makes Biology Learning Difficult and Effective: Students' Views

    Science.gov (United States)

    Cimer, Atilla

    2012-01-01

    The present study aims to determine the biological topics that students have difficulties learning, the reasons why secondary school students have difficulties in learning biology, and ways to improve the effectiveness of students' biology learning. For these purposes, a self-administered questionnaire including three open-ended questions was…

  5. Sea Ice Prediction Has Easy and Difficult Years

    Science.gov (United States)

    Hamilton, Lawrence C.; Bitz, Cecilia M.; Blanchard-Wrigglesworth, Edward; Cutler, Matthew; Kay, Jennifer; Meier, Walter N.; Stroeve, Julienne; Wiggins, Helen

    2014-01-01

    Arctic sea ice follows an annual cycle, reaching its low point in September each year. The extent of sea ice remaining at this low point has been trending downwards for decades as the Arctic warms. Around the long-term downward trend, however, there is significant variation in the minimum extent from one year to the next. Accurate forecasts of yearly conditions would have great value to Arctic residents, shipping companies, and other stakeholders and are the subject of much current research. Since 2008 the Sea Ice Outlook (SIO) (http://www.arcus.org/search-program/seaiceoutlook) organized by the Study of Environmental Arctic Change (SEARCH) (http://www.arcus.org/search-program) has invited predictions of the September Arctic sea ice minimum extent, which are contributed from the Arctic research community. Individual predictions, based on a variety of approaches, are solicited in three cycles each year in early June, July, and August. (SEARCH 2013).

  6. Biogenic hardparts: Difficult archives of the geological past (Invited)

    Science.gov (United States)

    Immenhauser, A.; Schone, B. R.; Hoffmann, R.; Niedermayr, A.

    2013-12-01

    Biomineralized exo- or endoskeletons of fossil marine invertebrates are widespread and diverse components of the Phanerozoic rock record of Earth's past and present oceans. Exoskeletons serve as protection against environmental pressure or predators, whilst endoskeletons can act as support or serve as an attachment for muscles and ligaments and hence as a mechanism for transmitting muscular forces. Biogenic hard parts represent sophisticated products resulting from the hierarchical interaction of inorganic minerals (95%) and macromolecular organic matrices, forming commonly less than 5%. The significance of many biogenic carbonate archives lies in the time-resolved growth patterns and their ability to record ambient environmental conditions in the form of multiple geochemical properties (multi-proxy archives) that have been widely used to assess past oceanic seawater properties. Here, we compile and review published work dealing with crystallization pathways of skeletal hard parts secreted by mollusks (i.e., bivalves and cephalopods) as well as brachiopods as widely used archives of ancient neritic epeiric settings. Bivalves and cephalopods (e.g., extinct ammonoids and belemnites and extant Sepia, Nautilus and Spirula) all form accretionary calcitic, aragonitic or vateritic skeletal hard parts. Despite the fact that mollusks and brachiopods form part of very different branches of the animal phylogenetic tree, their biomineralization strategies are surprisingly similar. Our main focus lies in a critical assessment of the complex pathways of ions and aquo-complexes from their source (seawater) to the final product (biomineral). We do this as an attempt to critically test the commonly held hypothesis that many fossil hard parts precipitated (under favorable conditions and pending subsequent diagenetic alteration) in equilibrium with seawater. Two main observations stand out: (1) the present knowledge on pathways and mechanisms (e.g., ion channel trans-membrane or

  7. Difficult-to-treat-pediatric Crohn's disease: focus on adalimumab

    Directory of Open Access Journals (Sweden)

    Zeisler B

    2015-04-01

    Full Text Available Bella Zeisler, Jeffrey S Hyams Division of Digestive Diseases, Hepatology, and Nutrition, Connecticut Children's Medical Center Hartford, University of Connecticut School of Medicine, Department of Pediatrics, Farmington, CT, USA Abstract: Adalimumab is a fully humanized anti-tumor necrosis factor alpha monoclonal antibody that was recently granted regulatory approval in the USA for the treatment of moderate to severe Crohn’s disease (CD in children. Like infliximab, the first biologic agent used to treat pediatric CD, regulatory approval was secured many years following approval for adults. The long delay between adult and pediatric approval has led to many years of off-label use of adalimumab, although it is anticipated that the use of adalimumab may further increase with official regulatory approval. To date, pediatric literature on the use of adalimumab for treatment of CD is limited, and pediatric practitioners have mostly extrapolated from research and experience provided by the adult literature. The aim of this paper is to review the literature regarding adalimumab for the treatment of pediatric CD, and includes a review of landmark adult studies as well as the pivotal pediatric study that facilitated regulatory approval. We also discuss the role of anti-tumor necrosis factor alpha agents including adalimumab in the current treatment paradigm for pediatric CD. Keywords: pediatrics, Crohn's disease, adalimumab, biologic agent

  8. The Lula Government’s First Year: The Difficult Transition

    Directory of Open Access Journals (Sweden)

    Sonia Fleury

    2004-05-01

    Full Text Available In this article, the author analyses the first year of Luiz Inácio Lula da Silva’s Government and highlights the importance of this Government for the process of democratic consolidation in Brazil. The contradiction between maintaining an orthodox economic policy and the expectations of creating conditions for development and social inclusion have marked the first year of this Government, subordinating all public policies to the logic of controlling inflation, paying off public debt, and increasing credibility in the international market. The reality of this macroeconomic policy and the costs imposed on the Brazilian society reveal the discrepancies between the financial economy and the real economy. The public policies of the Lula Government have been marked by economic restrictions and conflicts between the different forces that make up the governing coalition. The Government introduced innovative measures with the creation of different channels of participation and social agreement. In 2004, the Government will have to confront the challenges involved in going from a monetarist policy to a policy ofdevelopment and distribution of income.

  9. [Urologic emergencies: our difficult experience with care services].

    Science.gov (United States)

    Belvis Esclapes, V M; Merenciano Cortina, F; Torrus Tendero, P; Mira Llinares, A

    1994-09-01

    Urological emergencies, except those occurring in children, seen in a General Hospital were studied for one year. The retrospective study, both descriptive and comparative, conducted has allowed to know that there had been 3,244 emergencies (4.2% of total cases) though the urologist acted only in 1,410 (43.4%). A predominance of males (76.10%) in their sixth and seventh decade (33% of total) was seen. Presentation increased slightly (2%) above average during the summer months. 80.9% came to the Emergency Ward of their own accord and 70% were discharged soon after assistance. Nephritic colic (19.08%), haematuria (14.04%) and U.T.I. (13.83%) were the most common causes for presentation. A total of 284 patients (20.14%) required hospitalization. 96.6% were given medical and/or instrumental treatment, versus 3.4% (49) who underwent surgery basically due to testicular disease (34.69%), sepsis (24.50%), traumatic injury of male genitalia (20.3%), etc. The most frequent conditions were analyzed by age, sex, and seasonal distribution. Also, an analysis was made on the concept of "Urological Emergency" to evaluate incidence and types in our environment.

  10. Methods for measuring denitrification: Diverse approaches to a difficult problem

    DEFF Research Database (Denmark)

    Groffman, Peter M.; Altabet, Mark A.; Böhlke, J. K.

    2006-01-01

    , and global scales. Unfortunately, this process is very difficult to measure, and existing methods are problematic for different reasons in different places at different times. In this paper, we review the major approaches that have been taken to measure denitrification in terrestrial and aquatic environments...... and discuss the strengths, weaknesses, and future prospects for the different methods. Methodological approaches covered include (1) acetylene-based methods, (2) 15N tracers, (3) direct N2 quantification, (4) N2:Ar ratio quantification, (5) mass balance approaches, (6) stoichiometric approaches, (7) methods...... balance and stoichiometric approaches that constrain estimates of denitrification at large scales with point measurements (made using multiple methods), in multiple systems, is likely to propel more improvement in denitrification methods over the next few years....

  11. Ultrasound: promoting electroanalysis in difficult real world media.

    Science.gov (United States)

    Banks, Craig E; Compton, Richard G

    2004-08-01

    This article outlines the recent progress in the field of sonoelectroanalysis with strong emphasis on 'real world media' analysis. General principles of stripping analysis and the effects of ultrasound are explained. A section on 'Electroanalysis in extreme media' presents several examples of applications including detection of copper in beer, manganese in tea, lead and cadmium in saliva. The benefits of diamond electrodes are described and in the final section 'Metal ion detection in blood' several novel approaches based on the use of power ultrasound and based on bismuth electrodes are discussed. Specifically it is shown that the combination of ultrasound with classical stripping voltammetry permits quantifiable measurements in media hitherto impossible to study using conventional methods.

  12. The statement of the Polish Society of Allergology experts on the treatment of difficult-to-treat asthma.

    Science.gov (United States)

    Bodzenta-Łukaszyk, Anna; Fal, Andrzej M; Jassem, Ewa; Kowalski, Marek L; Kuna, Piotr; Kupczyk, Maciej

    2015-01-01

    The main objective of asthma treatment is to control symptoms of the disease; however, despite the availability of guidelines and many groups of medications, the degree of control of this condition is insufficient. In difficult-to-treat asthma, the optimal control cannot be achieved due to reasons independent of the disease. Factors worsening asthma control include: inadequate treatment plan (low therapy adherence and compliance), inappropriate inhalation technique, insufficient symptom control using the available classes of medications, incomplete response to treatment (non-responders, steroid-resistance), incorrect diagnosis of asthma or comorbidities, and environmental factors. In order to achieve the optimal asthma control, it is recommended to: take therapeutic decisions with the patient, assess the probability of non-compliance, perform detailed diagnostics and initiate treatment of concomitant diseases, carry out differential diagnosis of conditions mimicking asthma, educate the patient as to the inhalation technique and check it, eliminate unfavourable environmental factors, and modify current treatment. New treatment options for patients with asthma include: ultra-long-acting beta2-agonists, long-acting muscarine receptor antagonists (LAMA), monoclonal antibodies, and non-pharmacological interventions. The only LAMA approved for treatment of asthma is tiotropium bromide. The analyses performed demonstrated a high efficacy of tiotropium in terms of improved lung function parameters and prolonged time to the first asthma exacerbation. It is recommended as an add-on therapy at asthma treatment steps 4 and 5 according to GINA (Global Initiative for Asthma) 2014. The optimal asthma control is important from the medical as well as the economical point of view.

  13. Difficult to swallow: patient preferences for alternative valproate pharmaceutical formulations

    Directory of Open Access Journals (Sweden)

    Monali Bhosle

    2009-06-01

    Full Text Available Monali Bhosle,1 Joshua S Benner,1 Mitch DeKoven,1 Jeff Shelton21Health Economics and Outcomes Research, IMS Health Inc, Falls Church, VA, USA; 2Answers and Insights Market Research, Inc, Indianapolis, IN, USAObjective: To determine the degree to which swallowing valproate (VP tablets is an issue, the proportion of patients who would prefer an alternative formulation, and the predictors of preference.Methods: A quantitative telephone survey of eligible adults (n = 400, ≥18 years old who currently take (n = 236 or previously took (n = 164 VP tablets within the past 6 months was conducted.Results: More than half of the patients indicated that VP tablets were ‘uncomfortable to swallow’ (68.5%, n = 274 and were ‘very interested’ (65.8%, n = 263 in medications that were easier to swallow. When choosing conceptually between taking VP tablet once/day or an equally safe and effective but significantly smaller soft gel capsule twice per day, the 82.8%, (n = 331 preferred the soft gel capsule. In the multivariate regression analysis, perceiving soft gel capsules to be easier to swallow (OR = 73.54; 95% CI = 15.01 to 360.40 and taking VP more frequently (OR = 2.02; 95% CI = 1.13 to 3.61 were significant predictors of soft gel capsule treatment preference.Conclusion: VP users would prefer a formulation that is easier to swallow, even if it is needed to be taken twice per day. When choosing between medications with similar efficacy and safety, physicians can consider patient preferences to optimize conditions for medication adherence.Keywords: patient preference, valproate formulations, tablet characteristics

  14. Can biomarkers help us hit targets in difficult-to-treat asthma?

    Science.gov (United States)

    Fricker, Michael; Heaney, Liam G; Upham, John W

    2017-04-01

    Biomarkers may be a key foundation for the precision medicine of the future. In this article, we review current knowledge regarding biomarkers in difficult-to-treat asthma and their ability to guide the use of both conventional asthma therapies and novel (targeted) therapies. Biomarkers (as measured by tests including prednisolone and cortisol assays and the fractional exhaled nitric oxide (NO) suppression test) show promise in the assessment and management of non-adherence to inhaled and oral corticosteroids. Multiple markers of type 2 inflammation have been developed, including eosinophils in sputum and blood, exhaled NO, serum IgE and periostin. Although these show potential in guiding the selection of novel interventions for refractory type 2 inflammation in asthma, and in determining if the desired response is being achieved, it is becoming clear that different biomarkers reflect distinct components of the complex type 2 inflammatory pathways. Less progress has been made in identifying biomarkers for use in difficult-to-treat asthma that is not associated with type 2 inflammation. The future is likely to see further biomarker discovery, direct measurements of individual cytokines rather than surrogates of their activity and the increasing use of biomarkers in combination. If the promise of biomarkers is to be fulfilled, they will need to provide useful information that aids clinical decision-making, rather than being 'just another test' for clinicians to order.

  15. Why Is the Overheating Problem Difficult: the Role of Entropy

    Science.gov (United States)

    Liou, Meng-Sing

    2013-01-01

    The development of computational fluid dynamics over the last few decades has yielded enormous successes and capabilities being routinely employed today; however there remain some open problems to be properly resolved-some are fundamental in nature and some resolvable by operational changes. These two categories are distinguished and broadly explored previously. One, that belongs to the former, is the so-called overheating problem, especially in rarefying flow. This problem up to date still dogs every method known to the author; a solution to it remains elusive. The study in this paper concludes that: (1) the entropy increase is quantitatively linked to the increase in the temperature increase, (2) it is argued that the overheating is inevitable in the current shock capturing or traditional finite difference framework, and (3) a simple hybrid method is proposed that removes the overheating problem in the rarefying problems, but also retains the property of accurate shock capturing. This remedy (enhancement of current numerical methods) can be included easily in the present Eulerian codes.

  16. Meniere's disease: Still a mystery disease with difficult differential diagnosis.

    Science.gov (United States)

    Vassiliou, A; Vlastarakos, P V; Maragoudakis, P; Candiloros, D; Nikolopoulos, T P

    2011-01-01

    One hundred and forty-six years after its first description, the differential diagnosis of Meniere's disease remains very challenging. The aim of the present study is to review the current knowledge on the advantages and disadvantages of the new diagnostic methods for Meniere's disease. The importance of accurate diagnosis for primary healthcare systems is also discussed. An extensive search of the literature was performed in Medline and other available database sources. Information from electronic links and related books were also included. Controlled clinical studies, prospective cohort studies, retrospective cohort studies, cross-sectional studies, case reports, written guidelines, systematic reviews, and books were selected. The typical clinical triad of symptoms from the vestibular and cochlear systems (recurrent vertigo, fluctuating sensorineural hearing loss and tinnitus) is usually the key for clinical diagnosis. Glycerol dehydration test and electrocochleography are the main diagnostic tests in current practice, while vestibular evoked myogenic potentials may be used in disease staging. Imagine techniques are not specific enough to set alone the diagnosis of Meniere's disease, although they may be necessary to exclude other pathologies. Recently developed 3D MRI protocols can delineate the perilymphatic/endolymphatic spaces of the inner ear and aid diagnosis. Meniere's disease is a continuous problem for the patients and affects their quality of life. Taking into account the frequent nature of the disease in certain countries, efforts for reliable diagnosis, prompt referral, and successful management are undoubtedly cost-effective for healthcare systems.

  17. Difficult OptEase Filter Retrievals After Prolonged Indwelling Times

    Energy Technology Data Exchange (ETDEWEB)

    Van Ha, Thuong G., E-mail: tgvanha@radiology.bsd.uchicago.edu; Kang, Lisa; Lorenz, Jonathan; Zangan, Steven; Navuluri, Rakesh; Straus, Christopher; Funaki, Brian [University of Chicago, Section of Interventional Radiology, Department of Radiology (United States)

    2013-08-01

    PurposeThe OptEase vena cave filter (Cordis, Piscataway, NJ) is commercially available as a retrievable or permanent filter with short recommended indwelling time, presumably due to extensive contact of the filter side struts with the inferior vena cava wall and subsequent neointimal hyperplasia leading to incorporation. Our purpose was to evaluate OptEase filter retrievals with a long indwelling time period that required unconventional retrieval techniques.Materials and MethodsWe retrospectively reviewed patients who underwent OptEase filter retrieval with long undwelling times requiring additional maneuvers for retrieval. Techniques used included rigid endobronchial forceps dissection and wire-through-loop snare. Each patient underwent postretrieval venogram to evaluate for possible complications. In addition, patients had clinical follow-up 2 weeks after the retrieval procedure.ResultsThere were three patients (2 women, 1 man; average age 64 years) who underwent OptEase filter retrieval. The mean indwelling time was 6.4 months. The indwelling filters were successfully retrieved. There were no complications. Postprocedural follow-up showed no clinical pathology.ConclusionUnconventional techniques aided in the retrieval of OptEase filters with long indwelling times.

  18. Hepatitis C: Treatment of difficult to treat patients

    Institute of Scientific and Technical Information of China (English)

    2015-01-01

    Over the past several years, more so recently, treatmentoptions for hepatitis C virus (HCV) have seemed toexponentially grow. Up until recently, the regimen ofpegylated interferon (peg-IFN) and ribavirin (RBV) stoodas the standard of care. Direct acting antivirals, whichtarget nonstructural proteins involved in replicationand infection of HCV were first approved in 2011 as anaddition to the peg-IFN and RBV regimen and with themhave come increased sustained virological response rates(SVR). The previously reported 50%-70% SVR ratesusing the combination of peg-IFN and RBV are no longerthe standard of care with direct acting antiviral (DAA)based regimens now achieving SVR of 70%-90%. Peg-IFN free as well as "all oral" regimens are also available.The current randomized controlled trials available showfavorable SVRs in patients who are naive to treatment,non-cirrhotic, and not human immunodeficiency virus(HIV)-co-infected. What about patients who do notfit into these categories? In this review, we aim todiscuss the currently approved and soon to be approvedDAAs while focusing on their roles in patients that aretreatment experienced, cirrhotic, or co-infected with HIV.In this discussion, review of the clinical trials leadingto recent consensus guidelines as well as discussion ofbarriers to treatment will occur. A case will attempt willbe made that social services, including financial supportand drug/alcohol treatment, should be provided to allHCV infected patients to improve chances of cure andthus prevention of late stage sequela.

  19. Scabies Vaccine is Required, but Difficult to be Made

    Directory of Open Access Journals (Sweden)

    Simson Tarigan

    2007-03-01

    Full Text Available Sarcoptes scabiei, the mite causing scabies, infests human and at least 40 species of animals. The losses associated with the disease as a public health burden and economic losses are enormous because its prevalence is very high. The current available control by treating individuals diagnosed to have the disease is both ineffective and unpractical. Besides, dissatisfaction with the pharmacological control is escalating due to the development of resistance in the mites and rejection by consumers for animals products contaminated with drug residues. Vaccination is considered to be most the attractive alternative control although the availability of vaccine is still a long way off. Control of scabies by vaccination is considered to be feasible since animals recovered from the disease posses protective immunity against mite reinfestation. In addition, despite the fact that the mites reside not deeper than the unvascularised stratum corneum and they are not blood sucking parasites, they do ingest their host immunoglobulin. Vaccine for scabies, as for other ectoparasitic diseases, includes subunit vaccine developed from mite protective antigen produced by recombinant technology. Identification of sarcoptic protective antigen which comprise the first step in the vaccine development impede by the lability and low abundance of the protective antigen, and the difficulty in obtaining sufficient amount of mites. Identification of sarcoptic protective antigen by conventional biochemical technique, although the technique has been successful for other parasites, has been unsatisfactory for S. scabiei. Identifying the protective antigen just among proteins having vital functions in the survival of mites and accessible by the effector arms of the host immune system seems to be a more feasible alternative. The allergens and membrane proteins lining the digestive tract of the mites seem to fulfil the criteria.

  20. Diversity of life. Effects of power generation and transmission on biodiversity difficult to assess

    Energy Technology Data Exchange (ETDEWEB)

    Hongisto, M.; Nikula, A.

    1996-11-01

    Scientific theories do not necessarily enable us to forecast the consequences of our actions on wildlife. Presumably, nature is able to adapt to environmental changes through variations on the genetic, species and ecosystem level; i.e. by means of biodiversity. The first studies conducted within the electricity sector show that the effects of emissions form an individual power plant on biodiversity are extremely difficult to assess because of long-range dispersion of the emission and many other factors simultaneously acting on the environment. Some concrete information about the impact of power transmission lines on biodiversity was obtained. These effects were primarily reversible. Some transmission line zones may even have favourable effects on biodiversity and on the living conditions of certain endangered species. (orig.)

  1. Sub-optimal patient and physician communication in primary care consultations: its relation to severe and difficult asthma

    NARCIS (Netherlands)

    Moffat, M.; Cleland, J.; Van der Molen, T.; Price, D.

    2006-01-01

    Introduction: Asthma control can be influenced by a range of non-medical issues, including psychosocial factors. Little is known about the views of patients, particularly those with severe and/or difficult asthma, towards their asthma control and their asthma-related primary care consultations. Aims

  2. Prediction of difficult laryngoscopy: Extended mallampati score versus the MMT, ULBT and RHTMD

    Directory of Open Access Journals (Sweden)

    Mohammadreza Safavi

    2014-01-01

    Conclusion: EMS predicted difficult laryngoscopy better than MMT while both ULBT and RHTMD had more power than EMS and MMT in this regard. ULBT and RHTMD had similar predictive value for prediction of difficult laryngoscopy in general population.

  3. Clinical assessment of awake endotracheal intubation using the lightwand technique alone in patients with difficult airways

    Institute of Scientific and Technical Information of China (English)

    XUE Fu-shan; HE Nong; LIAO Xu; XU Xiu-Zheng; XU Yachao; YANG Quan-yong; LUO Mao-ping; ZHANG Yan-ming

    2009-01-01

    Background There is few study to determine whether the use of the lightwand technique alone could achieve effective, safe and successful awake endotracheal intubation (ETI), therefore we designed a prospective clinical study to systematically evaluate the feasibility, safety and efficacy of awake ETI using the lightwand alone in patients with difficult airways.Methods Seventy adult patients with difficult airways were enrolled in this study. After the desired sedation with fentanyl and midazolam, airway topical anesthesia was performed with 9 ml of 2% lidocaine, which were in order sprayed in three aliquots at 5 minutes intervals into the supraglottic (two doses) and laryngotracheal areas (one dose) using a combined unit of the lightwand and MADgic atomizer. After airway topical anesthesia, awake ETI was performed using a Lightwand. Subjective assessments by patients and operators using the visual analogue scores (VAS), and objective assessments by an independent investigator using patients' tolerance and reaction scores, coughing severity, intubating conditions and cardiovascular variables were taken as the observed parameters.Results Of 210 airway sprays, 197 (93.8%) were successfully completed on the first attempt. The total time for airway spray was (14.6±1.5) minutes. During airway topical anesthesia, the average patients' tolerance scores were 1.7-2.3. After airway topical anesthesia, the mean VAS for discomfort levels that the patients reported was 6.5. Also airway topical anesthesia procedure was rated as acceptable and no discomfort by 94.3% of patients. The lightwand-guided awake ETI was successfully completed on first attempt within 29 seconds in all patients. During awake ETI, patients' reaction and coughing scores were 1.9 and 1.6, respectively. All patients exhibited excellent or acceptable intubating conditions. Cardiovascular monitoring revealed that changes of systolic blood pressure and heart rate at each stage of airway manipulations were less

  4. An Discussion on The Reasons that Writing Skill is Percerived to be a Difficult Language Skill to Master

    Institute of Scientific and Technical Information of China (English)

    邱达希

    2015-01-01

    Writing is percerived as very difficult even in the learners’first language setting,however,it is more difficult for second language learners in EFL(English as a foreign language)contexts who are not engaged in an English environment or are compelled to use English in daily life(Chaisiri,2010).In this paper,the perceived difficulty of learning writing will be detailed through a discussion of empirical studies in the skill and its uptake and a brief summary of the features of writing will be included as well.

  5. Computer-driven automated weaning reduces weaning duration in difficult-to-wean patients

    Institute of Scientific and Technical Information of China (English)

    LIU Ling; XU Xiao-ting; YANG Yi; HUANG Ying-zi; LIU Song-qiao; QIU Hai-bo

    2013-01-01

    Background Weaning difficulties occur in 31% of total intubated patients,and result in prolonged weaning duration.A computer-driven automated weaning system can perform a spontaneous breathing trial (SBT) automatically and display a message when the trial is successfully passed.Such a system might have a beneficial effect on difficult-to-wean patients.The aim of this study was to examine whether the computer-driven automated weaning system can accelerate discontinuation of mechanical ventilation and improve outcomes in difficult-to-wean patients.Methods This randomized controlled study included 39 difficult-to-wean patients who failed their first spontaneous breathing trial.Before initiating weaning,eligible patients were randomly allocated to wean by computer-driven automated weaning system (CDW group,n=19) or a physician-controlled local protocol (PW group,n=20).Weaning duration,defined as the time from inclusion until first extubation,was the primary endpoint.Secondary endpoints were total duration of mechanical ventilation,the length of intensive care unit (ICU) stay,the number of reintubations,the mortality rate in the ICU,the number of noninvasive ventilations,the number of complications in the ICU,and the number of ventilator-associated pneumonia cases.Results The weaning duration was reduced with the computer-driven weaning as compared with the usual protocol (median 29.0 hours vs.45.5 hours,P=0.044).Total duration of mechanical ventilation and duration of the ICU stay did not differ between the CDW and PW groups.There was no difference in the number of reintubations between the CDW and PW groups (3 and 4 patients,P=-0.732).The study groups showed comparable numbers of tracheostomy,selfextubations,ventilator-associated pneumonia,and non-invasive ventilation.Mortality in the ICU was similar in the CDW and the PW groups (21.1% vs.20.0%,P=-0.935).Conclusion The computer-driven automated weaning system can reduce weaning duration in difficult

  6. Disarming Contankerous People: Coping with Difficult Personalities in ECE Work Settings

    Science.gov (United States)

    Hernandez, Luis; Smith, Connie Jo

    2009-01-01

    Difficult personalities come in a variety of roles in just about every setting. While types have been identified in the typical corporate and business culture, difficult work personalities also inhabit the world of early childhood education (ECE) workplaces. Because difficult people have an impact on workplace morale and productivity, the topic…

  7. The difficult doctor? Characteristics of physicians who report frustration with patients: an analysis of survey data

    Directory of Open Access Journals (Sweden)

    Garrett Joanne M

    2006-10-01

    Full Text Available Abstract Background Literature on difficult doctor-patient relationships has focused on the "difficult patient." Our objective was to determine physician and practice characteristics associated with greater physician-reported frustration with patients. Methods We conducted a secondary analysis of the Physicians Worklife Survey, which surveyed a random national sample of physicians. Participants were 1391 family medicine, general internal medicine, and medicine subspecialty physicians. The survey assessed physician and practice characteristics, including stress, depression and anxiety symptoms, practice setting, work hours, case-mix, and control over administrative and clinical practice. Physicians estimated the percentage of their patients who were "generally frustrating to deal with." We categorized physicians by quartile of reported frustrating patients and compared characteristics of physicians in the top quartile to those in the other three quartiles. We used logistic regression to model physician characteristics associated with greater frustration. Results In unadjusted analyses, physicians who reported high frustration with patients were younger (p 55 per week, higher stress, practice in a medicine subspeciality, and greater number of patients with psychosocial problems or substance abuse. Conclusion Personal and practice characteristics of physicians who report high frustration with patients differ from those of other physicians. Understanding factors contributing to physician frustration with patients may allow us to improve the quality of patient-physician relationships.

  8. Difficult-to-treat gouty arthritis: a disease warranting better management.

    Science.gov (United States)

    Schlesinger, Naomi

    2011-07-30

    -to-treat disease. The development of difficult-to-treat disease reflects the short-comings of current standard treatments in a growing number of gouty arthritis patients. This has been recognized by the pharmaceutical industry and has promoted the development of innovative therapies. An appreciation of the key role of IL-1β in inflammation in gouty arthritis has led to the development of a new class of anti-inflammatory agents that block IL-1β signal transduction. The current IL-1β blockers in trials are rilonacept and canakinumab. Canakinumab, a fully human anti-IL-1β monoclonal antibody, has been shown to produce rapid and sustained pain relief from acute flares in patients with difficult-to-treat disease, and both rilonacept and canakinumab have been shown to reduce the risk of recurrent flares. Promising new therapies for reducing serum urate levels are also being developed. These include the recently approved therapies pegloticase (a pegylated form of the enzyme uricase that converts urate to allantoin), inhibitors of renal urate transporter proteins, and inhibitors of purine nucleotide phosphorylase, an enzyme involved in purine metabolism. Further studies are warranted to establish the value and role of these new therapies in the management of gouty arthritis. These new options should help reduce the growing human burden associated with gouty arthritis, lowering the tophaceous burden, minimizing the risk of flares, and enabling patients to achieve rapid and effective pain relief when flares do occur.

  9. Difficult Children

    DEFF Research Database (Denmark)

    Christensen, Else

    The purpose of this paper is to put focus on families and children who have had contact to the social service department because of problems related children’s well-being, health or development. Problems that are recognized by the families themselves and by the authorities as problems that put...... the family in a poor position regarding the children’s well-being, health and development, but not so severe that the child is to be placed out of home. The paper concentrates attention on differences between families with and without contact to the social service department for reasons related to the child....... Especially on children and their development in social relations to children at the same age, on how the mothers experience their child and on the parent’s resources concerning health, education and job situation. The paper presents results from the first two data collections (1996 and 1999) in a prospective...

  10. Outcome of simple use of mechanical lithotripsy of difficult common bile duct stones

    Institute of Scientific and Technical Information of China (English)

    Wen-Hsiung Chang; Cheng-Hsin Chu; Tsang-En Wang; Ming-Jen Chen; Ching-Chung Lin

    2005-01-01

    AIM: The usual bile duct stone may be removed by means of Dormia basket or balloon catheter, and results are quite good. However, the degree of difficulty is increased when stones are larger. Studies on the subject reported many cases where mechanical lithotripsy is combined with a second technique, e.g. electrohydraulic lithotripsy (EHL),where stones are crushed using baby-mother scope electric shock. The extracorporeal shock-wave lithotripsy (ESWL)or laser lithotripsy also yields an excellent success rate of greater than 90%. However, the equipment for these techniques are very expensive; hence we opted for the simple mechanical lithotripsy and evaluated its performance.METHODS: During the period from August 1996 to Decemberz 2002, Mackay Memorial Hospital treated 304 patients suffering from difficult bile duct stones (stone >1.5 cm or stones that could not be removed by the ordinary Dormia basket or balloon catheter). These patients underwent endoscopic papillotomy (EPT) procedure, and stones were removed by means of the Olympus BML-4Q lithotripsy. A follow-up was conducted on the post-treatment conditions and complications of the patients.RESULTS: Out of the 304 patients, bile duct stones were successfully removed from 272 patients, a success rate of about 90%. The procedure failed in 32 patients, for whom surgery was needed. Out of the 272 successfully treated patients, 8 developed cholangitis, 21 developed pancreatitis,and 10 patients had delayed bleeding, and no patient died.Among these 272 successful removal cases, successful bile duct stone removal was achieved after the first lithotripsy in 211 patients, whereas 61 patients underwent multiple sessions of lithotripsy. As for the 61 patients that underwent multiple sessions of mechanical lithotripsy, 6 (9.8%) had post-procedure cholangitis, 12 (19.6%) had pancreatitis,and 9 patients (14.7%) had delayed bleeding. Compared with the 211 patients undergoing a single session of mechanical lithotripsy, 3 (1

  11. An alternative method to achieve one-lung ventilation by surgical pneumothorax in difficult lung isolation patient: a case report.

    Science.gov (United States)

    Yeh, Pin-Hung; Hsu, Po-Kai

    2016-04-01

    It is challenging to establish one-lung ventilation in difficult airway patients. Surgical pneumothorax under spontaneous breathing to obtain well-collapsed lung is a feasible method for thoracic surgery. A 76-year-old man with right empyema was scheduled for decortication. The patient had limited mouth opening due to facial cellulitis extending from the left cheek to neck. Generally, lung isolation is achieved by double-lumen endotracheal tube or bronchial blocker. Double-lumen tube insertion is difficult for patients with limited mouth opening and right-side placement of bronchial blocker usually causes insufficient deflation. We introduce an alternative lung isolation technique by surgical pneumothorax under spontaneous breathing simply with an endotracheal tube placement. This technique has never been applied into the management of difficult one-lung ventilation. By this method, we provide an ideal surgical condition with safer, less time-consuming, and less skill-demanding anesthesia. It would be an alternative choice for management of one-lung ventilation in the difficult lung isolation patient.

  12. Difficult embryo transfers or blood on catheter and assisted reproductive outcomes: a systematic review and meta-analysis.

    Science.gov (United States)

    Phillips, James A S; Martins, Wellington P; Nastri, Carolina O; Raine-Fenning, Nicholas J

    2013-06-01

    We performed a systematic review and meta-analysis to examine whether a difficult embryo transfer or the presence of blood on the transfer catheter affects assisted reproduction outcomes. We searched the following databases: Cochrane Central Register of Controlled Trials (CENTRAL), Database of Abstracts of Reviews of Effects (DARE), MEDLINE, Embase, PsycINFO, Cumulative Index to Nursing and Allied Health Literature (CINAHL), and Literatura Latino-Americana e do Caribe em Ciências da Saúde (LILACS). We aimed to determine the risk ratio (RR) associated with difficult embryo transfer or the presence of blood on the transfer catheter for the following outcomes: live birth, clinical pregnancy, and miscarriage. We identified 3066 papers, of which 194 were reviewed and nine were included. The outcome of live birth was not reported in any of the included studies and the effect on miscarriage was too imprecise for any conclusions. Pooled analysis of five studies demonstrated lower clinical pregnancy rates following a non-easy embryo transfer (RR=0.75; 95% CI=0.66-0.86). This included three studies showing subjectively difficult transfers reducing clinical pregnancies (RR=0.67; 95% CI=0.51-0.87) and two studies in which the need for additional manoeuvers reduced clinical pregnancies (RR=0.78; 95% CI=0.67-0.91). The presence of blood on the transfer catheter did not affect clinical pregnancy rates (RR=0.96; 95% CI=0.82-1.14) in five studies. We concluded that low quality evidence suggests that a difficult embryo transfer but not a bloody catheter reduces the chance of achieving a clinical pregnancy. More good quality studies are needed to evaluate the effect of difficult embryo transfer and the presence of blood on the catheter on the main outcomes of assisted reproduction.

  13. Lung Disease Including Asthma and Adult Vaccination

    Science.gov (United States)

    ... Healthcare Professionals Lung Disease including Asthma and Adult Vaccination Language: English Español (Spanish) Recommend on Facebook Tweet ... more about health insurance options. Learn about adult vaccination and other health conditions Asplenia Diabetes Heart Disease, ...

  14. 3D seismology Ruehlermoor: Highly dissolved seismology under difficult conditions; 3D Seismik Ruehlermoor: Hochaufloesende Seismik unter schwierigen Bedingungen

    Energy Technology Data Exchange (ETDEWEB)

    Koerbe, M.; Bartz, V. [Gaz de France Produktion Exploration Deutschland GmbH, Lingen (Germany)

    2008-10-23

    The previous structural plan of the petroleum deposit Ruehlermoor in Emsland (Federal Republic of Germany) only was based on the results of a multiplicity of drillings. In order to optimize the production and the EOR measures (EOR = Enhanced Oil Recovery), a highly soluble three-dimensional seismological measurement is accomplished. The goal of this measurement is the dissolution of disturbance displacements in an order of magnitude of five meters. The substantial problem is the fact that the oil field completely lies under a moorland which is dismounted industrially. The three-dimensional seismological measurements only can be accomplished in the winter months with mobile Sonic drilling equipment.

  15. Hook removal from a loggerhead sea turtle (Caretta caretta):Report of a tricky surgery under difficult conditions

    Institute of Scientific and Technical Information of China (English)

    João Pedro Barreiros

    2015-01-01

    A sub adult Caretta caretta was found on the 23rd August, 2014 ca. 16 nautical miles south off S. Miguel Island, Azores (Northeast Atlantic), with a large pelagic trawl hook inside its mouth. The individual was kept in a basin of sea water and sent by boat to Terceira Island following instructions by the Azores Regional Government via the Environmental Authority in order to be examined by the author and, if possible, undergo the necessary hook removal procedures. In this note, we describe the surgical procedures and how the turtle was evaluated both pre- and post-surgery.

  16. Hook removal from a loggerhead sea turtle (Caretta caretta: Report of a tricky surgery under difficult conditions

    Directory of Open Access Journals (Sweden)

    João Pedro Barreiros

    2015-08-01

    Full Text Available A sub adult Caretta caretta was found on the 23rd August, 2014 ca. 16 nautical miles south off S. Miguel Island, Azores (Northeast Atlantic, with a large pelagic trawl hook inside its mouth. The individual was kept in a basin of sea water and sent by boat to Terceira Island following instructions by the Azores Regional Government via the Environmental Authority in order to be examined by the author and, if possible, undergo the necessary hook removal procedures. In this note, we describe the surgical procedures and how the turtle was evaluated both pre- and post-surgery.

  17. Caregiver and environmental variables related to difficult behaviors in institutionalized, demented elderly persons.

    Science.gov (United States)

    Burgener, S C; Jirovec, M; Murrell, L; Barton, D

    1992-07-01

    This study describes the relationship between caregiver and elder behavior in institutionalized, cognitively impaired, elderly persons. A repeated-measures design was used to observe interactive behaviors between caregivers and demented elders within three caregiving situations (dressing, toileting, and bathing) and an interpersonal contact in two long-term care facilities. During observations, the caregiver's behaviors were rated using the Interaction Behavior Measure and Health Professional's-Geriatric Patient Behavior Rating scale, whereas the elder's behaviors were rated using a modified version of the Interaction Behavior Measure. The study included 116 subjects (58 elders and 58 caregivers), with each unique caregiver/elder pair being observed in the four situations. All elder behaviors varied according to situation type, with the most difficult elder behaviors occurring during bathing. Ten of the 12 caregiver behaviors included in the analysis varied by situation type. Significant relationships were systematically found between the caregiver's relaxed and smiling behavior and the elder's calm/functional behaviors, r = .42 (dressing) to r = .46 (toileting) for caregiver relaxed behavior and r = .34 (bathing) to r = .58 (dressing) for smiling. The elder's behavior did not vary by type of nursing unit (special dementia unit or general nursing unit), or interruptions to the interaction.

  18. Difficult conversations: teaching medical oncology trainees communication skills one hour at a time.

    Science.gov (United States)

    Epner, Daniel E; Baile, Walter F

    2014-04-01

    Difficult conversations about prognosis, end of life, and goals of care arise commonly in medical oncology practice. These conversations are often highly emotional. Medical oncologists need outstanding, patient-centered communication skills to build trust and rapport with their patients and help them make well-informed decisions. Key skills include exploring patients' perspectives, responding to emotion with empathy, and maintaining mindfulness during highly charged conversations. These skills can be taught and learned. Most previously described communication skills training curricula for oncology providers involve multiday retreats, which are costly and can disrupt busy clinical schedules. Many curricula involve a variety of oncology providers, such as physicians and nurses, at various stages of their careers. The authors developed a monthly, one-hour communication skills training seminar series exclusively for physicians in their first year of medical oncology subspecialty training. The curriculum involved a variety of interactive and engaging educational methods, including sociodramatic techniques, role-play, reflective writing, and Balint-type case discussion groups. Medical oncologists in their second and third years of training served as teaching assistants and peer mentors. Learners had the opportunity to practice skills during sessions and with patients between sessions. Learners acquired important skills and found the curriculum to be clinically relevant, judging by anonymous surveys and anonymous responses on reflective writing exercises. Results from the current curriculum are preliminary but lay the foundation for enhanced and expanded communication skills training programs in the future.

  19. Identifying and Investigating Difficult Concepts in Engineering Mechanics and Electric Circuits. Research Brief

    Science.gov (United States)

    Streveler, Ruth; Geist, Monica; Ammerman, Ravel; Sulzbach, Candace; Miller, Ronald; Olds, Barbara; Nelson, Mary

    2007-01-01

    This study extends ongoing work to identify difficult concepts in thermal and transport science and measure students' understanding of those concepts via a concept inventory. Two research questions provided the focal point: "What important concepts in electric circuits and engineering mechanics do students find difficult to learn?" and…

  20. Reducing the Burden of Difficult-to-Treat Major Depressive Disorder: Revisiting Monoamine Oxidase Inhibitor Therapy

    OpenAIRE

    Culpepper, Larry

    2013-01-01

    Objective: Difficult-to-treat depression (eg, depression with atypical or anxious symptoms, treatment-resistant depression, or depression with frequent recurrence) is a challenging real-world health issue. This critical review of the literature focuses on monoamine oxidase inhibitor (MAOI) therapy and difficult-to-treat forms of depression.

  1. Deciphering the Distance between Distance Education and Working Professionals in Difficult Geographies

    Science.gov (United States)

    Pandey, Jatin; Singh, Manjari

    2015-01-01

    This study investigates the factors that draw working professionals towards distance education programs, and the factors that sustain their distance education experience. The study is conducted in difficult terrains of Uttarakhand, a hilly state in India which helps us investigate the phenomenon in difficult geographies. Through interviews of ten…

  2. Two cases of tracheal disease misdiagnosed as difficult-to-treat asthma.

    Science.gov (United States)

    Alici, Ibrahim Onur; Kar Kurt, Ozlem; Dursun, Adile Berna; Yilmaz, Aydin; Erkekol, Ferda Oner

    2013-11-01

    Initial management of patients with difficult-to-treat asthma must begin with confirmation of the diagnosis. We present 2 cases of tracheal disease misdiagnosed as difficult-to-treat asthma. After systemic evaluation, tracheomalacia and tracheobronchial narrowing due to diffuse calcification of the cartilaginous rings were found as mimicking asthma.

  3. Behavioral Problems in Children and Adolescents with Difficult-To-Treat Asthma

    NARCIS (Netherlands)

    Verkleij, Marieke; van de Griendt, Erik-Jonas; Kaptein, Ad A.; van Essen-Zandvliet, Liesbeth; Duiverman, Eric; Geenen, Rinie

    2011-01-01

    Background. The aim of this study was to quantify behavioral problems in clinically treated children and adolescents with asthma and to examine the association of these problems and quality of life with difficult-to-treat asthma. Methods. Clinical patients with difficult-to-treat asthma (n = 31) and

  4. The relationship between clinical outcomes and medication adherence in difficult-to-control asthma.

    Science.gov (United States)

    Murphy, Anna C; Proeschal, Amandine; Brightling, Christopher E; Wardlaw, Andrew J; Pavord, Ian; Bradding, Peter; Green, Ruth H

    2012-08-01

    Medication non-adherence and the clinical implications in difficult-to-control asthma were audited. Prescription issue data from 115 patients identified sub-optimal adherence (asthma (p=0.008). The majority of patients with difficult-to-control asthma are non-adherent with their asthma medication. Non-adherence is correlated with poor clinical outcomes.

  5. Why Is It So Difficult to Gef Information in China?%Why Is It So Difficult to Gef Information in China?

    Institute of Scientific and Technical Information of China (English)

    2011-01-01

    You may reel contused and puzzled after living in China for some time as an expat, not only because of its 5000-yearoriental cult-tire and its very complicated language, but also, every day, you'll find it is always so difficult to get full infor- mation here. Why is that?

  6. A Comparison of Cormeck-Lehane and Mallampati Tests with Mandibular and Neck Measurements for Predicting Difficult Intubation

    Directory of Open Access Journals (Sweden)

    Niyazi Acer

    2011-06-01

    Full Text Available Objective: Various prediction tests were formulated to forecast difficult intubation. The Mallampati test, Wilson score, Cormack-Lehane test and thyromental distance are the most commonly used tests pre-operatively to assess the airway. The objective of the present study was to investigate whether a combination of the Mallampati and Cormack-Lehane’s classification to predict difficult intubation compared with sternomental and thyromental distances, mandibular length, width and neck length and circumference. Material and Methods: Two hundred twenty seven cases between 17 and 70 years old undergoing elective surgery were included in the study. Age, gender, body weight, body height and BMI were noted preoperatively. The pharyngeal structures were examined before the operation. At the time of intubation, laryngoscopic evaluation was performed according to the Cormack-Lehane’s laryngoscopic classification.Results: For analysis, Mallampati and Cormack-Lehane’s laryngoscopic classification were grouped as difficult (grades III and IV or easy (grades I and II. Whereas Mallampati scoring were class 1 and 2 (easy in 72.7% cases, Cormack-Lehane’s laryngoscopic scoring 90.7% of the cases were in class 1 and 2. The combination of the Cormeck-Lehane classification with neck circumference had the highest sensitivity (94.74%, but this combination decreased the positive predictive value. The combination of the Mallampati classification with neck length had the highest sensitivity (67.86%, but this combination decreased the positive predictive value.Conclusion: The findings suggest that the Mallampati and Cormeck-Lehane classification by itself is insufficient for predicting difficult intubation so should be used in conjunction with measurement of neck circumference and Cormeck-lehane test. Mallampati test with sternomental and thyromental distances in addition with neck length may be useful in routine test for preoperative prediction of difficult

  7. Difficult laryngoscopy and intubation in the Indian population: An assessment of anatomical and clinical risk factors

    Directory of Open Access Journals (Sweden)

    Smita Prakash

    2013-01-01

    Full Text Available Background and Aim: Differences in patient characteristics due to race or ethnicity may influence the incidence of difficult airway. Our purpose was to determine the incidence of difficult laryngoscopy and intubation, as well as the anatomical features and clinical risk factors that influence them, in the Indian population. Methods: In 330 adult patients receiving general anaesthesia with tracheal intubation, airway characteristics and clinical factors were determined and their association with difficult laryngoscopy (Cormack and Lehane grade 3 and 4 was analysed. Intubation Difficulty Scale score was used to identify degree of difficult laryngoscopy. Results: The incidence of difficult laryngoscopy and intubation was 9.7% and 4.5%, respectively. Univariate analysis showed that increasing age and weight, male gender, modified Mallampati class (MMC 3 and 4 in sitting and supine positions, inter-incisor distance (IID ≤3.5 cm, thyromental (TMD and sternomental distance, ratio of height and TMD, short neck, limited mandibular protrusion, decreased range of neck movement, history of snoring, receding mandible and cervical spondylosis were associated with difficult laryngoscopy. Multivariate analysis identified four variables that were independently associated with difficult laryngoscopy: MMC class 3 and 4, range of neck movement <80°, IID ≤ 3.5 cm and snoring. Conclusions: We found an incidence of 9.7% and 4.5% for difficult laryngoscopy and difficult intubation, respectively, in Indian patients with apparently normal airways. MMC class 3 and 4, range of neck movement <80°, IID ≤ 3.5 cm and snoring were independently related to difficult laryngoscopy. There was a high incidence (48.5% of minor difficulty in intubation.

  8. DEVELOPMENT OF WATER CIRCULATION MODEL INCLUDING IRRIGATION

    Science.gov (United States)

    Kotsuki, Shunji; Tanaka, Kenji; Kojiri, Toshiharu; Hamaguchi, Toshio

    It is well known that since agricultural water withdrawal has much affect on water circulation system, accurate analysis of river discharge or water balance are difficult with less regard for it. In this study, water circulation model composed of land surface model and distributed runoff model is proposed at 10km 10km resolution. In this model, irrigation water, which is estimated with land surface model, is introduced to river discharge analysis. The model is applied to the Chao Phraya River in Thailand, and reproduced seasonal water balance. Additionally, the discharge on dry season simulated with the model is improved as a result of including irrigation. Since the model, which is basically developed from global data sets, simulated seasonal change of river discharge, it can be suggested that our model has university to other river basins.

  9. Laparoscopic modified subtotal cholecystectomy for difficult gall bladders: A single-centre experience

    Science.gov (United States)

    Harilingam, Mohan Raj; Shrestha, Ashish Kiran; Basu, Sanjoy

    2016-01-01

    AIM: Laparoscopic cholecystectomy (LC) is considered the ‘gold standard’ intervention for gall bladder (GB) diseases. However, to avoid serious biliovascular injury, conversion is advocated for distorted anatomy at the Calot's triangle. The aim is to find out whether our technique of laparoscopic modified subtotal cholecystectomy (LMSC) is suitable, with an acceptable morbidity and outcome. PATIENTS AND METHODS: A retrospective analysis of prospectively collected data of 993 consecutive patients who underwent cholecystectomy was done at a large District General Hospital (DGH) between August 2007 and January 2015. The data are as follows: Patient's demographics, operative details including intra- and postoperative complications, postoperative stay including follow-up that was recorded and analysed. RESULTS: A total of 993 patients (263 males and 730 female) were included. The median age was 52*(18-89) years. Out of the 993 patients, 979 (98.5%) and 14 (1.5%) were listed for laparoscopic and open cholecystectomy, respectively. Of the 979 patients, 902 (92%) and 64 (6.5%) patients underwent LC ± on-table cholangiography (OTC) and LMSC ± OTC, respectively, with a median stay of 1* (0-15) days. Of the 64 patients, 55 (86%) had dense adhesions, 22 (34%) had acute inflammation, 19 (30%) had severe contraction, 12 (19%) had empyema, 7 (11%) had Mirizzi's syndrome and 2 (3%) had gangrenous GB. The mean operative time was 120 × (50-180) min [Table 1]. Six (12%) patients required endoscopic retrograde cholangiopancreatography (ERCP) postoperatively, and there were four (6%) readmissions in a follow-up of 30 × (8-76) months. The remaining 13 (1.3%) patients underwent laparoscopic cholecystectomy converted to an open cholecystectomy. The median stay for open/laparoscopic cholecystectomy converted to open cholecystectomy was 5 × (1-12) days. CONCLUSION: Our technique of LMSC avoided conversion in 6.5% patients and believe that it is feasible and safe for difficult GBs

  10. Predictive value of preoperative tests in estimating difficult intubation in patients who underwent direct laryngoscopy in ear, nose, and throat surgery

    Directory of Open Access Journals (Sweden)

    Osman Karakus

    2015-04-01

    Full Text Available BACKGROUND AND OBJECTIVES: Predictive value of preoperative tests in estimating difficult intubation may differ in the laryngeal pathologies. Patients who had undergone direct laryngoscopy (DL were reviewed, and predictive value of preoperative tests in estimating difficult intubation was investigated. METHODS: Preoperative, and intraoperative anesthesia record forms, and computerized system of the hospital were screened. RESULTS: A total of 2611 patients were assessed. In 7.4% of the patients, difficult intubations were detected. Difficult intubations were encountered in some of the patients with Mallampati scoring (MS system Class 4 (50%, Cormack-Lehane classification (CLS Grade 4 (95.7%, previous knowledge of difficult airway (86.2%, restricted neck movements (cervical ROM (75.8%, short thyromental distance (TMD (81.6%, vocal cord mass (49.5% as indicated in parentheses (p < 0.0001. MS had a low sensitivity, while restricted cervical ROM, presence of a vocal cord mass, short thyromental distance, and MS each had a relatively higher positive predictive value. Incidence of difficult intubations increased 6.159 and 1.736-fold with each level of increase in CLS grade and MS class, respectively. When all tests were considered in combination difficult intubation could be classified accurately in 96.3% of the cases. CONCLUSION: Test results predicting difficult intubations in cases with DL had observedly overlapped with the results provided in the literature for the patient populations in general. Differences in some test results when compared with those of the general population might stem from the concomitant underlying laryngeal pathological conditions in patient populations with difficult intubation.

  11. Sol-forming oil-displacing system intended to enhance oil recovery from deposits with difficult-to-recover reserves

    Science.gov (United States)

    Kozlov, V. V.; Altunina, L. K.; Stasyeva, L. A.; Kuvshinov, V. A.

    2016-11-01

    The paper presents the results of laboratory tests of the sol-forming NINKA®-Z system intended to enhance oil recovery from deposits with difficult-to-recover reserves. The kinetic and rheological features of solation in the oil-displacing system have been investigated. A physical modeling of the oil displacement process was carried out under the conditions of a heterogeneous reservoir at a low temperature using the sol-forming NINKA®-Z system. The investigations have proved its high efficiency, and the system was recommended for pilot tests.

  12. Current situation of endoscopic biliary cannulation and salvage techniques for difficult cases: Current strategies in Japan.

    Science.gov (United States)

    Yasuda, Ichiro; Isayama, Hiroyuki; Bhatia, Vikram

    2016-04-01

    In the pancreatobiliary session at Endoscopic Forum Japan (EFJ) 2015, current trends of routine biliary cannulation techniques and salvage techniques for difficult biliary cannulation cases were discussed. Endoscopists from nine Japanese high-volume centers along with two overseas centers participated in the questionnaires and discussion. It was concluded that, currently, in Western countries, the wire-guided cannulation (WGC) technique is favored during initial cannulation attempts. However, the conventional technique using an endoscopic retrograde cholangiopancreatography catheter with contrast medium injection is still used as first choice at most Japanese high-volume centers. The WGC technique is used as the second choice at some institutions only. After failed biliary cannulation attempts, the initial salvage option preferred in most centers includes pancreatic guidewire placement, followed by precut techniques as the second salvage choice. Among several precut techniques, the free-hand needle knife sphincterotomy with cutting upwards from the pancreatic duct is most popular. Endoscopic ultrasonography-guided rendezvous technique is also carried out as a final salvage option at select institutions.

  13. Hyomental distance in the different head positions and hyomental distance ratio in predicting difficult intubation

    Directory of Open Access Journals (Sweden)

    Nevena Kalezić

    2016-08-01

    Full Text Available The hyomental distance ratio (HMDR is the ratio between the hyomental distance (HMD (the distance between the hyoid bone and the tip of the chin at the extreme of head extension (HMDe and the one in the neutral position (HMDn. The objective of the study was to examine the predictive value, sensitivity, and specificity of HMDe, HMDn, and HMDR in predicting difficult endotracheal intubation (DI. A prospective study included 262 patients that underwent elective surgical operations. The following parameters were observed as possible predictors of DI: HMDR, HMDe, HMDn, Mallampati score, and body mass index (BMI. The cut-off points for the DI predictors were HMDe <5.3 cm, HMDn ≤5.5 cm, and HMDR ≤1.2. The assessment that DI existed was made by the anesthesiologist while performing laryngoscopy by applying the Cormack-Lehane classification. DI was present in 13 patients (5%. No significant difference was observed in the frequency of DI with regard to the sex, age, and BMI of the patients. Our research indicated HMDR as the best predictor of DI with a sensitivity of 95.6% and specificity of 69.2%. HMDR can be used in the everyday work of anesthesiologists because HMDR values ≤1.2 may reliably predict DI.

  14. My favorite tips for engaging the difficult patient on consultation-liaison psychiatry services.

    Science.gov (United States)

    Knesper, David J

    2007-06-01

    Disengagement is the main enemy for the consultation-liaison psychiatrist. The goal of the first interview is to transform the unwilling, uncooperative, and often difficult and hostile patient into an engaged interview participant. Otherwise, the interview is an unproductive interrogation and an unpleasant power struggle. Once the difficult patient is engaged, the more typical psychiatric interview can begin. The three interview-engagement tips or techniques described are among the author's favorite ways to overcome the impediments to engagement most often associated with difficult patients.

  15. A study to investigate the relationship between difficult intubation and prediction criterion of difficult intubation in patients with obstructive sleep apnea syndrome

    OpenAIRE

    Omer Kurtipek; Berrin Isik; Mustafa Arslan; Yusuf Unal; Yusuf Kizil; Yusuf Kemaloglu

    2012-01-01

    Background and Aim: Obstructive sleep apnea (OSA) syndrome is predisposed to the development of upper airway obstruction during sleep, and it poses considerable problem for anesthetic management. Difficult intubation (DI) is an important problem for management of anesthesia. In this clinical research, we aim to investigate the relationship between DI and prediction criteria of DI in cases with OSA. Materials and Methods: We studied 40 [OSA (Group O, n = 20) and non-OSA, (Group C, n = 20)] ASA...

  16. Prediction of difficult intubations using conventional indicators; Does rapid sequence intubation ease difficult intubations? A prospective randomised study in a tertiary care teaching hospital

    Directory of Open Access Journals (Sweden)

    Gangadharan Lakshmi

    2011-01-01

    Full Text Available Background : Endotracheal intubations performed in the Emergency Department. Aims : To assess whether conventional indicators of difficult airway can predict a difficult intubation in the Emergency Setting and to investigate the effect of rapid sequence intubation (RSI on ease of intubation. Settings and Design : A prospective randomized study was designed involving 60 patients requiring intubation, over a period of 4 months. Materials and Methods : Demographic profile, details of methods used, airway assessment, ease of intubation, and Cormack and Lehane score were recorded. Airway assessment score and ease of intubation criteria were devised and assessed. Statistical Analysis : Descriptive statistical analysis was carried out. Chi-square/2 × 2, 2 × 3, 3 × 3, Fisher Exact test have been used to find the significance of study parameters on categorical scale between two or more groups. Results : Patients with a Mallampatti score of three or four were found to have worse laryngoscopic views (Cormack-Lehane score, 3 or 4. Of all airway indicators assessed, an increased Mallampatti score was found to have significant correlation with increased difficulty in intubation. The use of RSI was associated with better laryngoscopic views, and easier intubations. Conclusions : An airway assessment using the Mallampatti score is invaluable as a tool to predict a difficult airway and should be performed routinely if possible. RSI aids intubation ease. If not otherwise contraindicated, it should be performed routinely for all intubations in the ED.

  17. Novel drugs in the management of difficult-to-treat hepatitis C genotypes

    Directory of Open Access Journals (Sweden)

    Cartwright EJ

    2013-08-01

    Full Text Available Emily J Cartwright, Lesley MillerDepartment of Medicine, Emory University School of Medicine, Atlanta, GA, USABackground: Hepatitis C virus (HCV infection is the most common chronic bloodborne infection in the United States, with approximately 3.2 million Americans being chronically infected. Rates of HCV-related end-stage liver disease and its associated morbidity and mortality have yet to peak, so there is a pressing need for more effective and tolerable HCV treatment. HCV genotypes 1, 4, 5, and 6 are considered difficult to treat, and the need for improved therapies is especially great for persons infected with these genotypes.Current strategies for HCV treatment: Current therapy for genotype 1 HCV infection includes triple therapy with pegylated interferon, ribavirin, and a NS3/4A protease inhibitor. Sustained virologic response (SVR rates with triple therapy range from 42% to 75%, a vast improvement over pegylated interferon and ribavirin therapy alone. However, response rates remain suboptimal, and triple therapy is associated with significant adverse effects and is only indicated for genotype 1 HCV infection.Novel drugs for HCV treatment: HCV drug development is proceeding at a rapid pace to meet this need. Novel direct acting antiviral agents in several classes, including new NS3/4A serine protease inhibitors, NS5A replication complex inhibitors, NS5B polymerase inhibitors, interferon lambda, and microRNAs, are in varying stages of development. These new therapeutic agents promise SVR rates of up to 100% with durations as short as 12 weeks and, often, fewer adverse effects.Conclusion: New drug development in HCV is proceeding at an unprecedented pace. Novel agents promise higher SVR rates, shorter duration of therapy, and fewer adverse effects than have been possible with HCV therapy to date.Keywords: hepatitis C, direct acting antivirals, genotype

  18. 'SIMPLES': a structured primary care approach to adults with difficult asthma.

    Science.gov (United States)

    Ryan, Dermot; Murphy, Anna; Ställberg, Björn; Baxter, Noel; Heaney, Liam G

    2013-09-01

    The substantial majority of patients with asthma can expect minimal breakthrough symptoms on standard doses of inhaled corticosteroids with or without additional add-on therapies. SIMPLES is a structured primary care approach to the review of a person with uncontrolled asthma which encompasses patient education monitoring, lifestyle and pharmacological management and addressing support needs which will achieve control in most patients. The small group of patients presenting with persistent asthma symptoms despite being prescribed high levels of treatment are often referred to as having 'difficult asthma'. Some will have difficult, 'therapy resistant' asthma, some will have psychosocial problems which make it difficult for them to achieve asthma control and some may prove to have an alternative diagnosis driving their symptoms. A few patients will benefit from referral to a 'difficult asthma' clinic. The SIMPLES approach, aligned with close co-operation between primary and specialist care, can identify this patient group, avoid inappropriate escalation of treatment, and streamline clinical assessment and management.

  19. Randomized controlled trial of the Pentax AWS, Glidescope, and Macintosh laryngoscopes in predicted difficult intubation.

    LENUS (Irish Health Repository)

    Malik, M A

    2009-11-01

    The purpose of this study was to determine the potential for the Pentax AWS and the Glidescope to reduce the difficulty of tracheal intubation in patients at increased risk for difficult tracheal intubation, in a randomized, controlled clinical trial.

  20. Difficult airway in a patient with H1N1 pneumonia in intensive care unit

    Directory of Open Access Journals (Sweden)

    Meltem Türkay

    2014-12-01

    Full Text Available The difficult airway is a frequent problem among adult patients in intensive care unit. All critical patients should initially be evaluated as a potential difficult airway cases. Development of a serious desaturation should be considered since these patients have less physiological reserve compared to those with difficult airway due to elective surgery. Development of respiratory failure with H1N1 associated pneumonia is likely and support of intubation and mechanic ventilator shall be needed. The objective of this report is to present the management of a patient with H1N1 associated pneumonia who required intubation however could not be intubated due to difficult airway. J Clin Exp Invest 2014; 5 (4: 617-619

  1. Difficult intubation in a parturient with syringomyelia and Arnold-Chiari malformation: Use of Airtraq™ laryngoscope

    Directory of Open Access Journals (Sweden)

    Bensghir Mustapha

    2011-01-01

    Full Text Available Anesthetic technique in parturient with syringomyelia and Arnold-Chiari malformation is variable depending on the teams. Difficult intubation is one of the risks when general anesthesia is opted. Different devices have been used to manage the difficult intubation in pregnant women. We report the use of Airtraq™ laryngoscope after failed standard laryngoscopy in a parturient with syringomyelia and Arnold-Chiari type I malformation.

  2. The prediction of difficult intubation in obese patients using mirror indirect laryngoscopy: A prospective pilot study

    Directory of Open Access Journals (Sweden)

    Arne O Budde

    2013-01-01

    Full Text Available Background: The incidence of difficult laryngoscopy and intubation in obese patients is higher than in the general population. Classical predictors of difficult laryngoscopy and intubation have been shown to be unreliable. We prospectively evaluated indirect mirror laryngoscopy as a predictor of difficult laryngoscopy in obese patients. Materials and Methods: 60 patients with a body mass index (BMI greater than 30, scheduled to undergo general anesthesia, were enrolled. Indirect mirror laryngoscopy was performed and was graded 1-4 according to Cormack and Lehane. A view of grade 3-4 was classified as predicting difficult laryngoscopy. Additional assessments for comparison were the Samsoon and Young modification of the Mallampati airway classification, Wilson Risk Sum Score, neck circumference, and BMI. The view obtained upon direct laryngoscopy after induction of general anesthesia was classified according to Cormack and Lehane as grade 1-4. Results: Sixty patients met the inclusion criteria; however, 8 (13.3% patients had an excessive gag reflex, and examination of the larynx was not possible. 15.4% of patients who underwent direct laryngoscopy had a Cormack and Lehane grade 3 or 4 view and were classified as difficult. Mirror laryngoscopy had a tendency toward statistical significance in predicting difficult laryngoscopy in these patients. Conclusions: This study is consistent with previous studies, which have demonstrated that no one individual traditional test has proven to be adequate in predicting difficult airways in the obese population. However, the new application of an old test - indirect mirror laryngoscopy - could be a useful additional test to predict difficult laryngoscopy in obese patients.

  3. Difficult airway management patterns among anesthesiologists practicing in Cairo University Hospitals

    Directory of Open Access Journals (Sweden)

    Neamat I. Abdel rahman

    2016-01-01

    Conclusion: The practice of anesthesiologists in Cairo university hospitals is close to the recommendations of the ASA guidelines for management of difficult airway. There is increased skills in fiberoptic bronchoscopes and SGA with increased frequency of difficult airway managements training courses; however, they need to improve their skills in awake fiberoptic intubations technique and they need to be trained on invasive airway management access to close the discrepancy between their theoretical choices in different situations and their actual skills.

  4. RATIO OF PATIENTS HEIGHT TO THYROMENTAL DISTANCE ( RHTMD COMPARED TO THYROMENTAL DISTANCE FOR PREDICTION OF DIFFICULT INTUBATION

    Directory of Open Access Journals (Sweden)

    Mohan

    2015-10-01

    Full Text Available BACKGROUND AND RATIONALE : Preoperative evaluation is important in the detection of patients at risk for difficult tracheal intubation. Thyromental distance (TMD is often used for these purposes, but its value as an indicator for difficult intubation is questionable, as it varies with patient size and body proportions. The purpose of the present study was to evaluate and compare the accuracies of th e Ratio o f Patient’s Height t o TMD (ratio of height to TMD=RHTMD, with TMD and Modified Mallampati classification (MP in the prediction of difficult tracheal intubation. OBJECTIVE : This study is an attempt in finding an airway index by making simple measurements to anticipate difficult airway and compare RHTMD with TMD and MP classification for predicting difficult airway. METHODS : 170 apparently normal ASA I & II patients who were u ndergoing elective surgeries under General Anaesthesia (GA were included in the study. The MP, TMD and RHTMD were determined in each patient preoperatively and Cormack – Lehane (CL grading was assessed during laryngoscopy. TMD ≤6.5cm, RHTMD > 25 and MP c lass III & IV were considered difficult intubation; these values were compared with CL grading. CL grade III&IV were considered as difficult intubation. The optimal predictive value was chosen using a receiver operating characteristic (ROC curve. The area s under the ROC curves (AUC of TMD and RHTMD were compared to determine the performance of the different predictive tests used. The sensitivity, specificity, and positive and negative predictive values of each of the predictive tests were calculated accor ding to standard formulae. RESULTS : Difficult intubation occurred in 6 out of 170 patients (3.5% in the study. The sensitivity of Modified Mallampati classification was 33.3% and specificity was 90.8%. The test has a positive predictive value of 11.7%, ne gative predictive value of 97.3% and overall accuracy of 88.8%. The sensitivity of TMD was 33.3% and

  5. Advances in Rosetta structure prediction for difficult molecular-replacement problems

    Energy Technology Data Exchange (ETDEWEB)

    DiMaio, Frank, E-mail: dimaio@u.washington.edu [University of Washington, UW Box 357350, Seattle, WA 98195 (United States)

    2013-11-01

    Modeling advances using Rosetta structure prediction to aid in solving difficult molecular-replacement problems are discussed. Recent work has shown the effectiveness of structure-prediction methods in solving difficult molecular-replacement problems. The Rosetta protein structure modeling suite can aid in the solution of difficult molecular-replacement problems using templates from 15 to 25% sequence identity; Rosetta refinement guided by noisy density has consistently led to solved structures where other methods fail. In this paper, an overview of the use of Rosetta for these difficult molecular-replacement problems is provided and new modeling developments that further improve model quality are described. Several variations to the method are introduced that significantly reduce the time needed to generate a model and the sampling required to improve the starting template. The improvements are benchmarked on a set of nine difficult cases and it is shown that this improved method obtains consistently better models in less running time. Finally, strategies for best using Rosetta to solve difficult molecular-replacement problems are presented and future directions for the role of structure-prediction methods in crystallography are discussed.

  6. [Difficult patient in dentistry. Construction of a model of personal attributes for identification].

    Science.gov (United States)

    Peñaranda Hernández, P M

    1989-01-01

    The communication between the dentist and the patient, or what we have called dentist-patient relationship constitute itself a clue to solve primary problems derived of the professional practice. In this relationship with patients, the dentist may face what we have called difficult patient. This difficult patient have several behavioral characteristics which can alter the dentist emotional equilibrium, the capacity of making proper diagnosis and finally a successful treatment may not be obtain as an end result. The difficult patient behavior may be explained by a variety of factors such as: the type of pathology, the office environment, the community and/or institution to which the patient belongs, the dentist emotional circumstance and at last the patient life style. In this research work, we interview 50 professionals from the metropolitan area with an average of 18 years in practiCe, each dentist explained situations in which the patient behavior could be typified as difficult. A number of 202 difficult patient cases were obtained and they were classified into 14 categories. 5 categories presented a higher frequency: a) Schedule and/or appointment timing. b) Patients not following instructions and/or altering treatment. c) Anxious patients. d) Patients unhappy with their treatment. e) Authoritarian patients or patients without good manners. This 5 categories were present in the 60% of the situations and can be taken as a model with specific behavioral characteristics as to identify the difficult patient. This is valuable in order to manage this type of patients and be successful.

  7. Effects of self-esteem on electrophysiological correlates of easy and difficult math.

    Science.gov (United States)

    Yang, Juan; Zhao, Ruifang; Zhang, Qinglin; Pruessner, Jens C

    2013-01-01

    The current study investigated the effects of easy versus difficult math on event-related potentials as a function of self-esteem in 28 undergraduate students. First, it was found that participants responded much more rapidly to an easy task. Second, the amplitude of P2 (150-300 ms) was more positive amplified in low self-esteem participants when compared to high self-esteem participants. Third, the difficult task elicited a greater N2 (300-450 ms) component than the easy task, but only in the low self-esteem participants. Finally, the easy task elicited a greater late positive component (LPC: 450-600 ms) compared with the difficult task and the difficult task elicited a greater LPC (900-1200 ms) components compared with the easy task separately, which were consistent with behavioral reaction times. We speculate that the difficult math might have induced more negative emotions in subjects with low self-esteem, and that low self-esteem individuals might be more susceptible to interpret the difficult task as threatening.

  8. Exhaled nitric oxide as a tool in managing and monitoring difficult-to-treat asthma.

    Science.gov (United States)

    Bukstein, Don; Luskin, Allan T; Brooks, Elizabeth A

    2011-01-01

    Most patients diagnosed with asthma maintain control reasonably well and do not experience asthma exacerbations; however, on average, 30% of patients achieve suboptimal control, have severe or difficult-to-treat asthma, and are relatively nonresponsive to the same medications that achieve and maintain asthma control for most patients. This small patient population of difficult-to-treat or severe asthma accounts for 80% of asthma medical costs. This study was designed to determine the potential U.S. payer cost savings resulting from an asthma specialist incorporating fractionated exhaled nitric oxide (FE(NO)) as an asthma management or monitoring tool to guide treatment of difficult-to-treat asthma patients. We present an annual medical resource use scenario typical of a difficult-to-treat asthma patient as well as five hypothetical scenarios of annual medical resource use for a difficult-to-treat asthma patient being managed with regular FE(NO) measurements in addition to current standard asthma management guidelines. We used the most conservative estimate of the potential asthma cost savings when FE(NO) measurement is used for difficult-to-treat asthma. The most likely clinical scenario assumes a 5% reduction in hospitalization and emergency department costs only. The inclusion of FE(NO) measurements to the asthma management strategy would essentially reach parity with the current standard of care, despite the additional cost of FE(NO) MEASUREMENTS: Additional scenarios were examined, all showed cost and use reduction across all medical resource usage categories. Use of exhaled NO measurement to guide asthma management, maintenance, and control in difficult-to-treat asthma would almost certainly result in cost savings to the payer.

  9. Characterization methodology for Difficult To Measure nuclides in the Type B rad waste from the ITER

    Energy Technology Data Exchange (ETDEWEB)

    Ji, Youngyong; Hong, Kwonpyo; Oh, Wanho; Kang, Munja; Na, Byungchan [Korea Atomic Energy Research Institute, Daejeon (Korea, Republic of)

    2012-10-15

    In general, it is not possible to directly detect beta rays from the rad waste in the field measurement due to their extremely low penetration through the materials. Only lab-scale measurements with proper shield and detecting system are available for the nondestructive assay. However, the disposal sites in many countries require the determination of inventories of the difficult to-measure (DTM) nuclides in the waste before their acceptance for disposal. Many sites that generate rad wastes thus are adapting the indirect method to characterize the DTM nuclides in the rad waste to be disposed. The rad waste from the operation of an international thermonuclear experimental reactor (ITER) will be sent to the hot cell building (HCB) after packing it to the basket and they are then treated into the disposal form as well as characterized through the nondestructive assay. The rad waste properties from the ITER are that high density material such as a steel, a copper, and a tungsten accounts for the main substance and many nuclides due to the neutron irradiation including the DTM nuclides exists in that waste. Therefore, the ITER is also facing with the problem for the characterization of DTM nuclides. The scaling factor for the radiological relationship between the gamma and the beta nuclides is one of the indirect measurements to characterize the DTM nuclides in the waste. The methodology of the scaling factor to apply this method to the characterization the Type B rad waste from the ITER are presented in this paper. There are several types of the in-vessel components (IVCs) in a Tokamak which will be activated by neutron and they will be divided into different types of the rad waste such as the divertor cassette, blanket module, and port plugs. In this paper, the characterization of DTM nuclides will be focused on the rad waste from a blanket module out of IVCs.

  10. Assessing the effects of different dielectrics on environmentally conscious powder-mixed EDM of difficult-to-machine material (WC-Co)

    Science.gov (United States)

    Singh, Jagdeep; Sharma, Rajiv Kumar

    2016-12-01

    Electrical discharge machining (EDM) is a well-known nontraditional manufacturing process to machine the difficult-to-machine (DTM) materials which have unique hardness properties. Researchers have successfully performed hybridization to improve this process by incorporating powders into the EDM process known as powder-mixed EDM process. This process drastically improves process efficiency by increasing material removal rate, micro-hardness, as well as reducing the tool wear rate and surface roughness. EDM also has some input parameters, including pulse-on time, dielectric levels and its type, current setting, flushing pressure, and so on, which have a significant effect on EDM performance. However, despite their positive influence, investigating the effects of these parameters on environmental conditions is necessary. Most studies demonstrate the use of kerosene oil as dielectric fluid. Nevertheless, in this work, the authors highlight the findings with respect to three different dielectric fluids, including kerosene oil, EDM oil, and distilled water using one-variable-at-a-time approach for machining as well as environmental aspects. The hazard and operability analysis is employed to identify the inherent safety factors associated with powder-mixed EDM of WC-Co.

  11. Assessing the effects of different dielectrics on environmentally conscious powder-mixed EDM of difficult-to-machine material (WC-Co)

    Science.gov (United States)

    Singh, Jagdeep; Sharma, Rajiv Kumar

    2016-06-01

    Electrical discharge machining (EDM) is a well-known nontraditional manufacturing process to machine the difficult-to-machine (DTM) materials which have unique hardness properties. Researchers have successfully performed hybridization to improve this process by incorporating powders into the EDM process known as powder-mixed EDM process. This process drastically improves process efficiency by increasing material removal rate, micro-hardness, as well as reducing the tool wear rate and surface roughness. EDM also has some input parameters, including pulse-on time, dielectric levels and its type, current setting, flushing pressure, and so on, which have a significant effect on EDM performance. However, despite their positive influence, investigating the effects of these parameters on environmental conditions is necessary. Most studies demonstrate the use of kerosene oil as dielectric fluid. Nevertheless, in this work, the authors highlight the findings with respect to three different dielectric fluids, including kerosene oil, EDM oil, and distilled water using one-variable-at-a-time approach for machining as well as environmental aspects. The hazard and operability analysis is employed to identify the inherent safety factors associated with powder-mixed EDM of WC-Co.

  12. The difficult patients in pain therapy: How to recognize and manage them

    Directory of Open Access Journals (Sweden)

    Giuseppe De Benedittis

    2005-05-01

    Full Text Available When physicians experience negative reactions to patients, they often perceive the patients as "difficult". Such patients make up 15% to 30% of primary care practice populations. They are those whom most physicians dread. The dependency of difficult patients heavily influences the doctor-patient relationship and the outcome of the treatment. These patients often present with physical symptoms that could not be medically explained. Pain is the most frequent complaint, though unrecognized psychopatological disorders are more prevalent among these patients. Conversely, difficult patients are rather common in chronic pain syndromes, particularly in back pain, failed back syndrome and atypical facial pain. Diagnosis can be achieved on phenomenological, psychopathological and psychodynamic grounds. The management of difficult patients can prove to be a tough task for both physicians and nurses, as they are time-consuming, draining the emotional resources of the therapist, and evoke feelings of aversion and frustration. Appropriate use of patient-doctor communication skills and an effort to improve relations with the patient through empathy, tolerance and non-judgemental listening are suggested as ways of transform a difficult encounter into a workable patient-doctor relationship.

  13. The difficult intraoperative nasogastric tube intubation: A review of the literature and a novel approach.

    Science.gov (United States)

    Ching, Yiu-Hei; Socias, Stephanie M; Ciesla, David J; Karlnoski, Rachel A; Camporesi, Enrico M; Mangar, Devanand

    2014-01-01

    Nasogastric tube intubation of a patient under general anesthesia with an endotracheal tube in place can pose a challenge to the most experienced anesthesiologist. Physiologic and pathologic variations in a patient's functional anatomy can present further difficulty. While numerous techniques to the difficult nasogastric tube intubation have been described, there is no consensus for a standard approach. Therefore, selecting the most appropriate approach requires a working knowledge of the techniques available, mindful consideration of individual patient and clinical factors, and the operator's experience and preference. This article reviews the relevant literature regarding various approaches to the difficult nasogastric tube intubation with descriptions of techniques and results from comparative studies if available. Additionally, we present a novel approach using a retrograde technique for the difficult intraoperative nasogastric tube intubation.

  14. BMI as a Predictor for Potential Difficult Tracheal Intubation in Males

    Directory of Open Access Journals (Sweden)

    Alberto A Uribe

    2015-06-01

    Full Text Available Introduction: Difficult tracheal intubation is a common source of mortality and morbidity insurgical and critical care settings. The incidence reported of difficult tracheal intubation is 0.1 to 13%and reaches 14% in the obese population. The objective of our retrospective study was to investigateand compare the utility of BMI as indicator of difficult tracheal intubation in males and females.Material and methods: We performed a retrospective chart review of patients who underwentabdominal surgeries with ASA I to V under general anesthesia requiring endotracheal intubation. Thefollowing information was obtained from medical records for analysis: gender, age, height, weight,BMI, length of patient stay in the Post Anesthesia Care Unit (PACU, past medical history of sleepapnea, Mallampati score, and the ASA classification assigned by the anesthesia care providerperforming the endotracheal intubation.Results: Of 4303 adult patients, 1970 (45.8% men and 2333 (54.2% women, were enrolled in thestudy. Within this group, a total of 1673 (38.9% patients were morbidly obese. The average age of thestudy group was 51.4 ± 15.8 and the average BMI was 29.7 ± 8.2 kg/m². The overall incidence of theencountered difficult intubations was 5.23%, or 225 subjects. Thus, our results indicate that BMI is areliable predictor of difficult tracheal intubation predominantly in the male population; another strongpredictor, with a positive linear correlation, being the Mallampati score.Conclusions: In conclusion, our data shows that BMI is a reliable indicator of potential difficult trachealintubation only in male surgical patients.

  15. Making difficult decisions how to be decisive and get the business done

    CERN Document Server

    Shaw, Peter J A

    2010-01-01

    You are faced with so many difficult decisions. Often your decision making seems random. It can be swayed by different situations and emotions. You need to be more rigorous in the way you make decisions and yet you have very little time to do so. Experience from others who have made tough decisions and a framework to help you do so would be invaluable. The courage to make decisions is sometimes a bit elusive. It is difficult to find the calmness to be able to make and live with those decisions. There is so much that can be learned from the experience of others. After working through this boo

  16. Maxillary tumor in a child: An expected case of difficult airway

    Science.gov (United States)

    Reena; Vikram, A

    2016-01-01

    Craniofacial abnormalities in pediatric population fall under the category of expected case of difficult airway. We present here a case of large maxillary tumor in a 9-year-old girl where the relative difficulty was further compounded due to her noncooperation which was again expected from a child. Local anesthetic topicalization of airway followed by slow inhalational induction with gradually increasing sevoflurane, while maintaining her spontaneous breathing, we secured her airway using fiber optic bronchoscopy. The surgery and the extubation went uneventful. In conclusion a planned airway management using fiber optic bronchoscope after airway topicalization and sevoflurane induction is the ideal technique in an expected case of difficult pediatric airway. PMID:27051379

  17. Pre and per operative prediction of difficult laparoscopic cholecystectomy using clinical and ultrasonographic parameters

    Directory of Open Access Journals (Sweden)

    Gaurav Gupta

    2015-11-01

    Methods: In 50 consecutive patients who underwent LC during 2013 to 2014 patient's characteristics, clinical history, laboratory data, ultrasonography results and intraoperative details were prospectively analyzed to determine predictors of difficult LC. Results: Of 50 patients 3 (06% required conversion to open cholecystectomy. Significant predictors of conversion were obscured anatomy of Calot's due to adhesions, sessile gall bladder, male gender and gall bladder wall thickness >3 mm. Conclusions: With preoperative clinical and ultrasonographic parameters, proper patient selection can be made to help predict difficult LC and a likelihood of conversion to open cholecystectomy. [Int J Res Med Sci 2015; 3(11.000: 3342-3346

  18. Incidence of unanticipated difficult airway using an objective airway score versus a standard clinical airway assessment

    DEFF Research Database (Denmark)

    Nørskov, Anders Kehlet; Rosenstock, Charlotte Valentin; Wetterslev, Jørn

    2013-01-01

    the examination and registration of predictors for difficult mask ventilation with a non-specified clinical airway assessment on prediction of difficult mask ventilation.Method/Design: We cluster-randomized 28 Danish departments of anaesthesia to airway assessment either by the SARI or by usual non...... reduction equalling a number needed to treat of 180. Sample size estimation is adjusted for the study design and based on standards for randomization on cluster-level. With an average cluster size of 2,500 patients, 70,000 patients will be enrolled over a 1-year trial period. The database is programmed so...

  19. Theory including future not excluded

    DEFF Research Database (Denmark)

    Nagao, K.; Nielsen, H.B.

    2013-01-01

    We study a complex action theory (CAT) whose path runs over not only past but also future. We show that, if we regard a matrix element defined in terms of the future state at time T and the past state at time TA as an expectation value in the CAT, then we are allowed to have the Heisenberg equation......, Ehrenfest's theorem, and the conserved probability current density. In addition,we showthat the expectation value at the present time t of a future-included theory for large T - t and large t - T corresponds to that of a future-not-included theory with a proper inner product for large t - T. Hence, the CAT...

  20. Defense Health Care: Better Tracking and Oversight Needed of Servicemember Separations for Non-Disability Mental Conditions

    Science.gov (United States)

    2015-02-01

    mixes non-disability mental conditions with non-disability physical conditions, such as obesity , making it difficult to distinguish one type of...servicemembers be physically and psychologically suitable for military service. DOD policy permits an enlisted servicemember to be involuntarily separated...broad separation code. 12Examples of non-disability physical conditions for which servicemembers can be administratively separated include obesity and

  1. Biodiversity conservation including uncharismatic species

    DEFF Research Database (Denmark)

    Muñoz, Joaquin

    2007-01-01

    Recent papers mention ideas on the topics of biodiversity conservation strategies and priorities (Redford et al. 2003; Lamoreux et al. 2006; Rodrı´guez et al. 2006), the current status of biodiversity (Loreau et al. 2006), the obligations of conservation biologists regarding management policies...... (Chapron 2006; Schwartz 2006), and the main threats to biodiversity (including invasive species) (Bawa 2006). I suggest, however, that these articles do not really deal with biodiversity. Rather, they all focus on a few obviously charismatic groups (mammals, birds, some plants, fishes, human culture...

  2. Making Difficult History Public: The Pedagogy of Remembering and Forgetting in Two Washington DC Museums

    Science.gov (United States)

    Segall, Avner

    2014-01-01

    In this article, Avner Segall explores some pedagogical processes in the context of two museums in Washington, DC, that focus on difficult knowledge, the National Museum of the American Indian (NMAI) and the United States Holocaust Memorial Museum. In doing so, Segall's aim is not to explore the museums as a whole or provide a comprehensive…

  3. Physicochemical technologies for enhanced oil recovery in deposits with difficult-to-recover reserves

    Science.gov (United States)

    Altunina, L. K.; Kuvshinov, V. A.; Kuvshinov, I. V.

    2016-11-01

    The results of laboratory and field tests as well as the commercial use of new physicochemical technologies intended to enhance oil recovery in deposits with difficult-to-recover reserves are presented. They are based on the concept of reservoir energy used to generate gels, sols, and surfactant compositions preserving a complex of properties in the reservoir which are optimal for oil displacement.

  4. Awake fiberoptic or awake video laryngoscopic tracheal intubation in patients with anticipated difficult airway management

    DEFF Research Database (Denmark)

    Rosenstock, Charlotte Vallentin; Thøgersen, Bente; Afshari, Arash;

    2012-01-01

    Awake flexible fiberoptic intubation (FFI) is the gold standard for management of anticipated difficult tracheal intubation. The purpose of this study was to compare awake FFI to awake McGrath® video laryngoscope, (MVL), (Aircraft Medical, Edinburgh, Scotland, United Kingdom) intubation in patien...

  5. Information-Limited Parallel Processing in Difficult Heterogeneous Covert Visual Search

    Science.gov (United States)

    Dosher, Barbara Anne; Han, Songmei; Lu, Zhong-Lin

    2010-01-01

    Difficult visual search is often attributed to time-limited serial attention operations, although neural computations in the early visual system are parallel. Using probabilistic search models (Dosher, Han, & Lu, 2004) and a full time-course analysis of the dynamics of covert visual search, we distinguish unlimited capacity parallel versus serial…

  6. Problems in psychiatric care of 'difficult patients': a Delphi-study

    NARCIS (Netherlands)

    Koekkoek, B.W.; Meijel, B.K.G. van; Schene, A.H.; Hutschemaekers, G.J.M.

    2009-01-01

    Aims - 'difficult patients' may evoke strong feelings in health professionals. The ambivalent attitude of, especially, non-psychotic chronic patients towards psychiatric care may be frustrating and burdensome to professionals. Many of these patients are cared for in non-specialized services, where p

  7. A longitudinal model of maternal self-efficacy, depression, and difficult temperament during toddlerhood.

    Science.gov (United States)

    Gross, D; Conrad, B; Fogg, L; Wothke, W

    1994-06-01

    The purpose of this study was to test a model of maternal self-efficacy during toddlerhood using a longitudinal sequential design. Participants were 126 mothers of 1-year olds (Cohort 1) and 126 mothers of 2-year olds (Cohort 2) who completed questionnaires measuring maternal self-efficacy, depression, and perceived difficult toddler temperament three times over 1 year. Data were analyzed using structural equation modeling and maximum likelihood estimation. Findings support a model whereby (a) the more depressed the mother feels, the more likely she is to rate her toddler's temperament as difficult, (b) the more difficult the child's temperament is perceived to be, the lower the mother's estimates of her parenting self-efficacy, (c) the lower the mother's self-efficacy, the greater her depression, and (d) the more depressed the mother feels at one point in time, the more likely she is to remain depressed 6 months later. Implications of the findings are discussed as they relate to self-efficacy theory and nursing intervention with parents of difficult toddlers.

  8. Maternal Affective-Cognitive Processes in the Perception of Newborn Difficultness.

    Science.gov (United States)

    Wolke, Dieter; St. James-Roberts, Ian

    A short-term longitudinal study investigated the way parents come to perceive their infant's temperament as difficult, and to identify factors influencing parents' impression formation. Subjects were 40 middle and lower middle class breastfeeding mothers and their singleton newborns of 38 weeks gestation and 2500 grams birth weight. All mothers…

  9. Reaction Workup Planning: A Structured Flowchart Approach, Exemplified in Difficult Aqueous Workup of Hydrophilic Products

    Science.gov (United States)

    Hill, George B.; Sweeney, Joseph B.

    2015-01-01

    Reaction workup can be a complex problem for those facing novel synthesis of difficult compounds for the first time. Workup problem solving by systematic thinking should be inculcated as mid-graduate-level is reached. A structured approach is proposed, building decision tree flowcharts to analyze challenges, and an exemplar flowchart is presented…

  10. Cutting Costs, Keeping Quality: Financing Strategies for Youth-Serving Organizations in a Difficult Economy

    Science.gov (United States)

    Keller, Eric

    2010-01-01

    This research brief highlights three effective financing strategies that successful youth-serving organizations are using to maintain quality services despite difficult economic times. The brief provides examples of how organizations have implemented these strategies and offers tips to help leaders consider how best to adapt these strategies to…

  11. Do Early Difficult Temperament and Harsh Parenting Differentially Predict Reactive and Proactive Aggression?

    Science.gov (United States)

    Vitaro, Frank; Barker, Edward Dylan; Boivin, Michel; Brendgen, Mara; Tremblay, Richard E.

    2006-01-01

    The goal of this study was to examine the links between difficult temperament (i.e., negative emotionality) and harsh parental discipline during toddlerhood, and reactive and proactive aggression in kindergarten. These links were assessed on a longitudinal population-based study of 1516 boys and girls followed longitudinally from the age of 17…

  12. Difficult airway management of children in ambulatory anesthesia: challenges and solutions

    Directory of Open Access Journals (Sweden)

    Huang AS

    2016-11-01

    Full Text Available Andrea S Huang,1 Lindsey Rutland,2 John Hajduk,1 Narasimhan Jagannathan1,2 1Department of Pediatric Anesthesia, Ann and Robert H. Lurie Children’s Hospital of Chicago, 2Department of Anesthesiology, Northwestern University Feinberg School of Medicine, Chicago, IL, USA Abstract: As the field of pediatric ambulatory anesthesia expands, anesthesiologists can anticipate encountering an increasing number of patients with expected and unexpected difficult airways. This unique setting and patient population both present challenges in making a decision whether and how to safely proceed in the case of a child with a difficult airway. A host of patient, provider, procedure, and facility-specific factors should be considered. Providers should understand the differences between the pediatric and adult airway, recognize common features and syndromes associated with difficult airways, and be comfortable with different airway equipment and techniques available in the ambulatory setting. Early anticipation, a comprehensive patient assessment, and a clear decision-making algorithm with multiple airway management plans are all critical in safely and effectively managing these patients. These issues and recommendations will be discussed in this comprehensive narrative review. Keywords: difficult airway, pediatrics, ambulatory surgery, airway devices, children

  13. History Museums and Social Cohesion: Building Identity, Bridging Communities, and Addressing Difficult Issues

    Science.gov (United States)

    Rosenberg, Tracy Jean

    2011-01-01

    Museums have the capacity to enhance social cohesion, which is the product of a trusting, connected community. History museums and historic sites, in particular, can serve communities by stimulating dialogue on difficult issues, accurately representing all the people of a nation, and creating forums for discussion among groups with disparate…

  14. "Chalepa Ta Kala," "Fine Things Are Difficult": Socrates' Insights into the Psychology of Teaching and Learning

    Science.gov (United States)

    Mintz, Avi I.

    2010-01-01

    The proverb "chalepa ta kala" ("fine things are difficult") is invoked in three dialogues in the Platonic corpus: "Hippias Major," "Cratylus" and "Republic." In this paper, I argue that the context in which the proverb arises reveals Socrates' considerable pedagogical dexterity as he uses the proverb to rebuke his interlocutor in one dialogue but…

  15. Which Aspects of the English Language Do Distance Learners Find Difficult?

    Science.gov (United States)

    Teoh, George Boon Sai; Lin, Agnes Liau Wei; Belaja, Kathy

    2016-01-01

    This study reports the findings of a research carried out on distance learners at the School of Distance Education (SDE), University Sains Malaysia (USM). The study was explorative in nature with the purpose identifying the aspects of the English language which distance learners found difficult to learn. A quantitative survey questionnaire design…

  16. Combination therapy versus monotherapy for gastroesophageal reflux in children with difficult-to-treat bronchial asthma

    Directory of Open Access Journals (Sweden)

    Adel Salah Bediwy

    2014-01-01

    Conclusions: Combination of domperidone and esomeprazole was more effective in improving the endoscopic reflux score, childhood-asthma control test (C-ACT and FEV1 (% of predicted and significantly reduced the sputum SP than the use of esomeprazole only in children with difficult-to-treat asthma.

  17. Incremental Learning of Difficult Words in Story Contexts: The Role of Spelling and Pronouncing New Vocabulary

    Science.gov (United States)

    Vadasy, Patricia F.; Sanders, Elizabeth A.

    2015-01-01

    In this exploratory study we examine the value of exposure to the spelling and pronunciation of word forms when introducing the meanings of new and difficult vocabulary words. Kindergarten English learners were randomly assigned to one of two types of storybook reading delivered by tutors. Students in both treatments listened to short stories…

  18. Carotid artery stenting by non-femoral arterial approach in patients with difficult anatomy

    Directory of Open Access Journals (Sweden)

    R V Narayana

    2013-01-01

    Full Text Available Background: Carotid endarterectomy (CEA and carotid artery stenting (CAS are safe, effective, and standard methods to treat significant carotid artery stenosis. CAS is generally performed through femoral arterial access. We had six patients with significant carotid artery stenosis, who had difficult anatomy prohibiting a trans-femoral CAS. Those patients were given an option for CEA. However, they refused for surgical intervention. Aim: We investigated the feasibility of performing CAS from a non-femoral arterial approach in patients with difficult anatomies like severe aortic/aorto-iliac disease, tortuous aortic arch, and tortuous carotid artery origin. Materials and Methods: Six patients with difficult anatomy presented to us with either transient ischemic attack or stroke with high-grade carotid artery stenosis. Out of the six patients, three had aorto-iliac disease, one had high-grade coarctation of aorta, two had tortuous aortic arch and or tortuous carotid artery origin. All these patients were treated with CAS though non-femoral arterial route. Results: CAS could be done successfully in all these six patients; four of them were done through trans-brachial arterial route and two were done through a direct carotid artery puncture. There were no new neurological deficits seen in any of the patient post-procedure. Conclusion: CAS can be done safely through non-femoral arterial approach in patients with difficult anatomy.

  19. Queer(y)ing Religion and Spirituality: Reflections from Difficult Dialogues Exploring Religion, Spirituality, and Homosexuality

    Science.gov (United States)

    LePeau, Lucy

    2007-01-01

    This article describes a student affairs practitioner's experience with co-instructing a course entitled, "Queer(y)ing Religion and Spirituality". The ways practitioners can facilitate difficult dialogues with students about the intersection of spirituality and GLBT issues are explored.

  20. Comparison of different tests to determine difficult intubation in pediatric patients

    Directory of Open Access Journals (Sweden)

    Mehmet Turan Inal

    2014-12-01

    Full Text Available Background: The difficulties with airway management is the main reason for pediatric anesthesia-related morbidity and mortality. Objective: To assess the value of modified Mallampati test, Upper-Lip-Bite test, thyromental distance and the ratio of height to thyromental distance to predict difficult intubation in pediatric patients. Design: Prospective analysis. Measurements and results: Data were collected from 5 to 11 years old 250 pediatric patients requiring tracheal intubation. The Cormack and Lehane classification was used to evaluate difficult laryngoscopy. Sensitivity, specificity, positive predictive value and AUC values for each test were measured. Results: The sensitivity and specificity of modified Mallampati test were 76.92% and 95.54%, while those for ULBT were 69.23% and 97.32%. The optimal cutoff point for the ratio of height to thyromental distance and thyromental distance for predicting difficult laryngoscopy was 23.5 (sensitivity, 57.69%; specificity, 86.61% and 5.5 cm (sensitivity, 61.54%; specificity, 99.11%. The modified Mallampati was the most sensitive of the tests. The ratio of height to thyromental distance was the least sensitive test. Conclusion: These results suggested that the modified Mallampati and Upper-Lip-Bite tests may be useful in pediatric patients for predicting difficult intubation.

  1. Martin Award Paper: Development of Interactive Virtual Laboratories to Help Students Learn Difficult Concepts in Thermodynamics

    Science.gov (United States)

    Bowen, Alec S.; Reid, Daniel R.; Koretsky, Milo D.

    2015-01-01

    In this project, we explore the use of threshold concept theory as a design basis for development of Interactive Virtual Laboratories in thermodynamics. Thermodynamics is a difficult subject for chemical and biological engineering students to master. One reason for the difficulty is the diverse and challenging set of threshold concepts that they…

  2. The Role of Classroom Quality in Ameliorating the Academic and Social Risks Associated with Difficult Temperament

    Science.gov (United States)

    Curby, Timothy W.; Rudasill, Kathleen Moritz; Edwards, Taylor; Perez-Edgar, Koraly

    2011-01-01

    The present study examines the moderating role first grade classroom quality may have on the relations between children's difficult temperament (assessed in infancy) and their academic and social outcomes in early elementary school (first grade). Using data from the National Institute of Child Health and Human Development's Study of Early Child…

  3. Making Difficult History Public: The Pedagogy of Remembering and Forgetting in Two Washington DC Museums

    Science.gov (United States)

    Segall, Avner

    2014-01-01

    In this article, Avner Segall explores some pedagogical processes in the context of two museums in Washington, DC, that focus on difficult knowledge, the National Museum of the American Indian (NMAI) and the United States Holocaust Memorial Museum. In doing so, Segall's aim is not to explore the museums as a whole or provide a comprehensive…

  4. "DIFFICULT AIRWAY MANAGEMENT IN A PATIENT WITH TREACHER-COLLIN’S SYNDROME WITH INTUBATING LARYNGEAL MASK AIRWAY "

    Directory of Open Access Journals (Sweden)

    M. Gharebaghian

    2006-08-01

    Full Text Available Treacher Collin’s syndrome (TCS is a rare inherited condition characterized by bilateral and symmetric abnormalities of structures within the first and second bronchial arches. Patients with TCS present a serious problem to anesthetists maintaining their airway as upper airway obstruction and difficult tracheal intubation due to severe facial deformity. Because of retrognathia, airway management of these patients is often challenging. We report the case of a 25-yr-old patient with TCS undergoing microtia repair under general anesthesia twice. In the first time he could not be intubated via direct laryngoscopy and was intubated via blind nasal intubation. In the second time, he was intubated through an ILMA using endotracheal tube.

  5. Laryngoscope and a new tracheal tube assist lightwand intubation in difficult airways due to unstable cervical spine.

    Directory of Open Access Journals (Sweden)

    Cai-neng Wu

    Full Text Available The WEI Jet Endotracheal Tube (WEI JET is a new tracheal tube that facilitates both oxygenation and ventilation during the process of intubation and assists tracheal intubation in patients with difficult airway. We evaluated the effectiveness and usefulness of the WEI JET in combination with lightwand under direct laryngoscopy in difficult tracheal intubation due to unstable cervical spine.Ninety patients with unstable cervical spine disorders (ASA I-III with general anaesthesia were included and randomly assigned to three groups, based on the device used for intubation: lightwand only, lightwand under direct laryngoscopy, lightwand with WEI JET under direct laryngoscopy.No statistically significant differences were detected among three groups with respect to demographic characteristics and C/L grade. There were statistically significant differences between three groups for overall intubation success rate (p = 0.015 and first attempt success rate (p = 0.000. The intubation time was significantly longer in the WEI group (110.8±18.3 s than in the LW group (63.3±27.5 s, p = 0.000 and DL group (66.7±29.4 s, p = 0.000, but the lowest SpO2 in WEI group was significantly higher than other two groups (p<0.01. The WEI JET significantly reduced successful tracheal intubation attempts compared to the LW group (p = 0.043. The severity of sore throat was similar in three groups (p = 0.185.The combined use of WEI JET under direct laryngoscopy helps to assist tracheal intubation and improves oxygenation during intubation in patients with difficult airway secondary to unstable spine disorders.Chinese Clinical Trial Registry ChiCTR-TRC-14005141.

  6. Difficult cannulation as defined by a prospective study of the Scandinavian Association for Digestive Endoscopy (SADE) in 907 ERCPs

    DEFF Research Database (Denmark)

    Halttunen, Jorma; Meisner, Søren; Aabakken, Lars;

    2014-01-01

    BACKGROUND: The definition of a "difficult" cannulation varies considerably in reports of endoscopic retrograde cholangiopancreatography (ERCP). AIMS: To define a difficult cannulation, which translates into higher risk of post-ERCP pancreatitis. PATIENTS AND METHODS: Prospective consecutive reco...

  7. Including Magnetostriction in Micromagnetic Models

    Science.gov (United States)

    Conbhuí, Pádraig Ó.; Williams, Wyn; Fabian, Karl; Nagy, Lesleis

    2016-04-01

    The magnetic anomalies that identify crustal spreading are predominantly recorded by basalts formed at the mid-ocean ridges, whose magnetic signals are dominated by iron-titanium-oxides (Fe3-xTixO4), so called "titanomagnetites", of which the Fe2.4Ti0.6O4 (TM60) phase is the most common. With sufficient quantities of titanium present, these minerals exhibit strong magnetostriction. To date, models of these grains in the pseudo-single domain (PSD) range have failed to accurately account for this effect. In particular, a popular analytic treatment provided by Kittel (1949) for describing the magnetostrictive energy as an effective increase of the anisotropy constant can produce unphysical strains for non-uniform magnetizations. I will present a rigorous approach based on work by Brown (1966) and by Kroner (1958) for including magnetostriction in micromagnetic codes which is suitable for modelling hysteresis loops and finding remanent states in the PSD regime. Preliminary results suggest the more rigorously defined micromagnetic models exhibit higher coercivities and extended single domain ranges when compared to more simplistic approaches.

  8. Pediatric Interstitial Lung Disease Masquerading as Difficult Asthma: Management Dilemmas for Rare Lung Disease in Children

    Directory of Open Access Journals (Sweden)

    EY Chan

    2005-01-01

    Full Text Available Idiopathic nontransplant-related childhood bronchiolitis obliterans is an uncommon disease. Most patients present with chronic recurrent dyspnea, cough and wheezing, which are also features of asthma, by far a much more common condition. The present case study reports on a six-year-old girl who presented to a tertiary care centre with recurrent episodes of respiratory distress on a background of baseline tachypnea, chronic hypoxemia and exertional dyspnea. Her past medical history revealed significant lung disease in infancy, including respiratory syncytial virus bronchiolitis and repaired gastroesophageal reflux. She was treated for 'asthma exacerbations' throughout her early childhood years. Bronchiolitis obliterans was subsequently diagnosed with an open lung biopsy. She did not have sustained improvement with systemic corticosteroids, hydroxychloroquine or clarithromycin. Cardiac catheterization confirmed the presence of secondary pulmonary hypertension. Treatment options remain a dilemma for this patient because there is no known effective treatment for this condition, and the natural history is not well understood. The present case demonstrates the need for careful workup in 'atypical asthma', and the urgent need for further research into the rare lung diseases of childhood.

  9. A study to investigate the relationship between difficult intubation and prediction criterion of difficult intubation in patients with obstructive sleep apnea syndrome

    Directory of Open Access Journals (Sweden)

    Omer Kurtipek

    2012-01-01

    Full Text Available Background and Aim: Obstructive sleep apnea (OSA syndrome is predisposed to the development of upper airway obstruction during sleep, and it poses considerable problem for anesthetic management. Difficult intubation (DI is an important problem for management of anesthesia. In this clinical research, we aim to investigate the relationship between DI and prediction criteria of DI in cases with OSA. Materials and Methods: We studied 40 [OSA (Group O, n = 20 and non-OSA, (Group C, n = 20] ASA I-II, adult patients scheduled tonsillectomy under general anesthesia. Same anesthetic protocol was used in two groups. Intubation difficulties were assessed by Mallampati grading, Wilson sum score, Laryngoscopic grading (Cormack and Lehane, a line joining the angle of the mouth and tragus of the ear with the horizontal, sternomental distance, and tyromental distance. Demographic properties, time-dependent hemodynamic variables, doses of reversal agent, anesthesia and operation times, and recovery parameters were recorded. Results: Significant difference was detected between groups in terms of BMI, Mallampati grading, Wilson weight scores, Laryngoscopic grading, sternomental distance, tyromental distance, doses of reversal agent, and recovery parameters. Conclusion: OSA patient′s DI ratio is higher than that of non-OSA patients. BMI Mallampati grading, Wilson weight scores, Laryngoscopic grading, sternomental distance, and tyromental distance evaluation might be predictors for DI in patients with OSA.

  10. Determination of difficult concepts in the interpretation of musculoskeletal radiographs using a web-based learning/teaching tool

    Energy Technology Data Exchange (ETDEWEB)

    Nunn, Heidi, E-mail: heidi@imageinterpretation.co.uk [Norfolk and Norwich University Hospital NHS Foundation Trust, Colney Lane, Norwich, Norfolk NR4 7UY (United Kingdom); Nunn, David L. [Norfolk and Norwich University Hospital NHS Foundation Trust, Colney Lane, Norwich, Norfolk NR4 7UY (United Kingdom)

    2011-11-15

    Aim: To identify which aspects of musculoskeletal radiograph image interpretation users of a web-based learning resource found to be most difficult. Method: The resource provides modular online training, based on twelve musculoskeletal anatomical and pathological areas. At the end of each module is a multiple choice self-test, which users can utilize to consolidate their learning. There are 217 questions within the tests. The results for all questions answered on or before 1st February 2011 were analyzed, and the lowest scoring 25% of questions subsequently reviewed. A low-scoring question implies that the subject was difficult. Results: Users provided a total of 117,097 answers. The range of scores provided by the test questions varied significantly (P < 0.0001), from 15.8% to 93.8%. Topics appearing in the lowest quartile were analyzed in detail. They included interpretation of paediatric radiographs, the Salter-Harris classification, soft-tissue signs and the identification of multiple injuries. The lowest scoring modules were the shoulder and ankle. Conclusion: The results of this study will help to guide educators both within radiography and other health professions in providing more targeted teaching in musculoskeletal image interpretation.

  11. [Case of abdominal wall malignant peripheral nerve sheath tumor which is difficult to distinguish from a urachal disease].

    Science.gov (United States)

    Tatenuma, Tomoyuki; Sakata, Ryoko; Sugiura, Shinpei; Tajiri, Takehiro; Gondo, Toshikazu; Kitami, Kazuo

    2013-09-01

    Malignant peripheral nerve sheath tumors (MPNST) are highly malignant soft tissue sarcomas. It is very rare for MPNST to arise in the abdominal wall. We report a case of abdominal wall MPNST that was difficult to distinguish from a urachal disease. A 72-year-old woman found a mass of the umbilicus in October 2011. She visited a digestive surgery department in November because it gradually enlarged. Diagnostic imaging suggested a urachal tumor. She was then referred to our clinic. Contrast enhanced CT showed that the 5-cm cystic tumor extended from the umbilicus to abdominal wall. The tumor showed low uptake value in PET-CT. We diagnosed her with a urachal cyst, but could not deny urachal carcinoma. Therefore, we performed surgical resection in January 2012. The pathological diagnosis was MPNST. She has not experienced recurrence for 9 months. MPNST mostly occur in the retroperitoneum close to the spine, extremities, head, and neck. It is very rare for them to occur in the abdominal wall. This is the sixth case including overseas reports. In addition, this is the first case in which it was difficult to distinguish from a urachal disease.

  12. Some origins of the 'difficult' child: the Brazelton scale and the mother's view of her new-born's character.

    Science.gov (United States)

    Meares, R; Penman, R; Milgrom-Friedman, J; Baker, K

    1982-03-01

    Thirty-two mothers and their new-born babies were studied in order to consider, in a limited way, the manner in which a mother comes to attribute personality traits to her infant. The child's expected 'difficulty' was rated by means of a standardized inventory. In addition, a semi-structured interview was conducted with the mother, and her baby was examined by means which have been described by Brazelton. The circumstances of birth were taken from hospital records. Mothers who did not expect the child to be difficult showed a 'general flexibility' which probably related to coping ability. Babies who were seen as unlikely to be difficult had high scores on 'state control' and 'physiological response to stress'. These measures include ratings for habituation and seem to reflect an efficient means of dealing with stimuli. These infantile factors did not correlate with the maternal one, suggesting that a genetic explanation of the findings was not likely. The effect of the circumstances of birth was not strong, but medication level seemed important. The transcripts of the mothers' interviews were consistent with the view that the mother's assessment of her infant's character was not only influenced by a fine observation of the infant's behaviour but also by something like 'projective identification'. The transcripts also suggested that mechanisms which have been seen as important in the development of identity in adolescence may be operating from the first days of life.

  13. Maxillary tumor in a child: An expected case of difficult airway

    Directory of Open Access Journals (Sweden)

    Reena

    2016-01-01

    Full Text Available Craniofacial abnormalities in pediatric population fall under the category of expected case of difficult airway. We present here a case of large maxillary tumor in a 9-year-old girl where the relative difficulty was further compounded due to her noncooperation which was again expected from a child. Local anesthetic topicalization of airway followed by slow inhalational induction with gradually increasing sevoflurane, while maintaining her spontaneous breathing, we secured her airway using fiber optic bronchoscopy. The surgery and the extubation went uneventful. In conclusion a planned airway management using fiber optic bronchoscope after airway topicalization and sevoflurane induction is the ideal technique in an expected case of difficult pediatric airway.

  14. The Difficult Patient Stress Scale: a new instrument to measure interpersonal stress in nursing.

    Science.gov (United States)

    Santamaria, N

    1995-01-01

    This study describes the development of the Difficult Patient Stress Scale, an instrument designed to investigate the stress that nurses experience when they are involved in interpersonal conflict with patients. The DPSS is based on the theoretical conceptualization of stress proposed by DeLongis, Lazarus and Folkman and on the personality theory of Individual Psychology. The DPSS utilises visual analog scales to measure nurses' responses to hypothetical scenarios that present typical, difficult nurse-patient situations. The DPSS has been tested over a period of two years with 228 nurses and the results to date indicate that it is valid, reliable and suitable for use in the clinical environment. It is proposed that it may provide a useful instrument for exploring the impact and frequency of interpersonal stressors in nursing and may assist in the development of educational programs to better equip nurses to deal with interpersonal nurse-patient conflict.

  15. Solid-phase peptide synthesis: from standard procedures to the synthesis of difficult sequences.

    Science.gov (United States)

    Coin, Irene; Beyermann, Michael; Bienert, Michael

    2007-01-01

    This protocol for solid-phase peptide synthesis (SPPS) is based on the widely used Fmoc/tBu strategy, activation of the carboxyl groups by aminium-derived coupling reagents and use of PEG-modified polystyrene resins. A standard protocol is described, which was successfully applied in our lab for the synthesis of the corticotropin-releasing factor (CRF), >400 CRF analogs and a countless number of other peptides. The 41-mer peptide CRF is obtained within approximately 80 working hours. To achieve the so-called difficult sequences, special techniques have to be applied in order to reduce aggregation of the growing peptide chain, which is the main cause of failure for peptide chemosynthesis. Exemplary application of depsipeptide and pseudoproline units is shown for synthesizing an extremely difficult sequence, the Asn(15) analog of the WW domain FBP28, which is impossible to obtain using the standard protocol.

  16. Which factors are associated with difficult surgical extraction of impacted lower third molars?

    OpenAIRE

    Park, Kyeong-Lok

    2016-01-01

    Objectives The aim of this retrospective study was to investigate factors associated with increased difficulty in the surgical extraction of impacted lower third molars and to improve identification of difficult cases. Materials and Methods A total of 680 patients who required 762 surgical extractions of impacted lower third molars from 2009 to 2014 were enrolled in the study. Demographic factors, clinical factors, radiographic factors, surgical extraction difficulty, and presumed causes of d...

  17. The Bonds and Burdens of Family Life: Using Narrative Analysis to Understand Difficult Relationships

    OpenAIRE

    Mary Breheny; Christine Stephens

    2011-01-01

    Attempts to understand difficult family relationships have ignored the inextricable links between positive and negative relationships. Narrative analysis provides insight into complex relationships within social context. We analysed interviews with older people in New Zealand using levels of narrativity to reveal the negotiations required to manage personal identity at the intersection of competing public narratives. Participants and interviewers used public narratives of family life that rei...

  18. Use of Adult Fibreoptic Bronchoscope for Difficult Paediatric Intubation: A Case Report

    Directory of Open Access Journals (Sweden)

    Kundan Sandugir Gosavi

    2015-06-01

    Full Text Available Difficult airway management in paediatric patients may require a technique different from the standard one. We report the use of an adult fibreoptic bronchoscope and J tipped guidewire to intubate a child having temporo-mandibular joint ankylosis. Spontaneous respiration was maintained and local anaesthesia was provided to the upper airway during the procedure and the successful use of this technique avoided the requirement of surgical airway.

  19. Simple solution for difficult face mask ventilation in children with orofacial clefts.

    Science.gov (United States)

    Veerabathula, Prardhana; Patil, Manajeet; Upputuri, Omkar; Durga, Padmaja

    2014-10-01

    Significant air leak from the facial cleft predisposes to difficult mask ventilation. The reported techniques of use of sterile gauze, larger face mask and laryngeal mask airway after intravenous induction have limited application in uncooperative children. We describe the use of dental impression material molded to the facial contour to cover the facial defect and aid ventilation with an appropriate size face mask in a child with a bilateral Tessier 3 anomaly.

  20. Role of locking plates in treatment of difficult ununited fractures: a clinical study

    Institute of Scientific and Technical Information of China (English)

    Ashok Kumar; Himanshu Gupta; Chandra Shekhar Yadav; Shah Alam Khan; Shishir Rastogi

    2013-01-01

    Objective:To present our experience in treatment of difficult ununited long bone fractures with locking plate.Methods:Retrospective evaluation of locking plate fixation in 10 difficult nonunions of long bone fractures was done.Fixation was done with locking plate for femoral shaft fracture (3 patients),supracondylar fracture of femur (gap nonunion),fracture of clavicle,fracture of both forearm bones (radius and ulna) fracture of ulna,fracture of shaft of humerus,fracture of tibial diaphysis and supracondylar fracture of humerus (one patient each).Five fractures had more than one previous failed internal fixation.One patient had infected nonunion which was managed by debridement with cast immobilization followed by fixation with locking plate at six weeks.Seven fractures were atrophic,two were oligotrophic,and one was hypertrophic.Fibular autograft was used in 2 cases and iliac crest cancellous bone graft used in all the patients.Results:Minimum follow-up was 6 months (range,6 months to 2.5 years).Average rime for union was 3.4 months (range 2.5 to 6 months).None of the patients had platerelated complications or postoperative wound infections.Conclusion:Along with achieving stability with locking compression plate,meticulous soft tissue dissection,acceptable reduction,good fixation technique and bone grafting can help achieve union in difficult nonunion cases.Though locking plate does not by itself ensure bony union,we have found it to be another useful addition to our armamentarium for treating difficult fracture nonunions.

  1. Difficult Airway due to Retropharyngeal Hematoma after Stabbing to the Neck

    Directory of Open Access Journals (Sweden)

    Kouhei Iwashita

    2014-07-01

    Full Text Available Reports of retropharyngeal hematoma have been scarce in the anesthesiology literature. We report a patient whose trachea was difficult to intubate due to retropharyngeal hematoma after stabbing to the neck. A woman with a knife injury to the common carotid artery required emergency carotid arterioplasty. When tracheal intubation was attempted, marked swelling of the posterior pharyngeal wall made the vocal cords impossible to visualize. Preoperative computed tomography showed a retropharyngeal hematoma. The patient required mechanical ventilation for 2 days.

  2. Difficult to Wean Patients:Cultural Factors and their Impact on Weaning Decision-Making

    OpenAIRE

    Kydonaki, K.; Huby, Guro; Tocher, Jennifer

    2013-01-01

    Aims and objectives. This study aimed to examine the elements of the intensive care environment and consider the impact on nurses’ involvement in decision-making when weaning from mechanical ventilation. Background. Optimal management of difficult to wean patients requires the dynamic collaboration of all clinicians and the contribution of their knowledge and skills. The introduction of weaning protocols has increased nurses’ input in decisionmaking, but there are various elements of the deci...

  3. Detailed statistical analysis plan for the difficult airway management (DIFFICAIR) trial

    DEFF Research Database (Denmark)

    Nørskov, Anders Kehlet; Lundstrøm, Lars Hyldborg; Rosenstock, Charlotte Vallentin

    2014-01-01

    on the frequency of unanticipated difficult airway management.To prevent outcome bias and selective reporting, we hereby present a detailed statistical analysis plan as an amendment (update) to the previously published protocol for the DIFFICAIR trial. METHOD/DESIGN: The DIFFICAIR trial is a stratified, parallel...... trial by an a priori publication of a statistical analysis plan. TRIAL REGISTRATION: ClinicalTrials.gov: NCT01718561....

  4. Management of difficult-to-treat patients with ulcerative colitis: focus on adalimumab

    OpenAIRE

    Armuzzi A; Pugliese D; Nardone OM; Guidi L

    2013-01-01

    Alessandro Armuzzi, Daniela Pugliese, Olga Maria Nardone, Luisa Guidi IBD Unit, Complesso Integrato Columbus, Catholic University, Rome, Italy Abstract: The treatment of ulcerative colitis has changed over the last decade, with the introduction of biological drugs. This article reviews the currently available therapies for ulcerative colitis and the specific use of these therapies in the management of patients in different settings, particularly the difficult-to-treat patients. The focus of ...

  5. "Passive-bending colonoscope" significantly improves cecal intubation in difficult cases

    Institute of Scientific and Technical Information of China (English)

    Takeshi Mizukami; Haruhiko Ogata; Toshihumi Hibi

    2012-01-01

    Colonoscopy sometimes causes pain during insertion,especially in difficult cases.Over-insufflation of air causes elongation or acute angulations of the colon,making passage of the scope difficult and causing pain.We previously reported a sedative-risk-free colonoscopy insertion technique,namely,"Water Navigation Colonoscopy".Complete air suction after water infusion not only improves the vision,but also makes water flow down to the descending colon,while the sigmoid colon collapses and shortens.While non-sedative colonoscopy can be carried out without pain in most cases,some patients do complain of pain.Most of these patients have abnormal colon morphology,and the pain is caused while negotiating the "hairpin" bends of the colon.The "hairpin" bends of the colon should be negotiated by gently pushing the full-angled colonoscope.The proximal 10-20 cm from the angulated part of the conventional colonoscope is stiff,with a wide turning radius,therefore,a conventional colonoscope cannot be negotiated through the "hairpin" bends of the colon without stretching them and causing pain.The "passive-bending colonoscope" has a flexible tip with a narrow turning radius,so that the scope can be negotiated through the "hairpin" bends of the colon with a minimum turning radius and minimal discomfort.Therefore,the intubation and pain-reducing performance of the "passive-bending colonoscope" was assessed in difficult cases.

  6. Spectrum of prostatic nonepithelial tumors and tumorlike conditions with spindle cell features.

    Science.gov (United States)

    Mazzucchelli, Roberta; Scarpelli, Marina; Lopez-Beltran, Antonio; Cheng, Liang; Montironi, Rodolfo

    2012-06-01

    There exists a wide and heterogeneous spectrum of spindle cell lesions that can originate from the prostatic stroma. This includes benign and malignant neoplasms as well as tumorlike conditions. Their diagnosis in small biopsy specimens is often difficult because of the potential for sampling error. The utility of ancillary studies, including immunohistochemistry, is often limited and the main criteria for diagnosis are the morphologic findings by routine hematoxylin and eosin stain.

  7. Statement on smoking cessation in COPD and other pulmonary diseases and in smokers with comorbidities who find it difficult to quit

    DEFF Research Database (Denmark)

    Jiménez-Ruiz, Carlos A; Andreas, Stefan; Lewis, Keir E

    2015-01-01

    Chronic obstructive pulmonary disease (COPD), lung cancer, asthma and pulmonary tuberculosis are common pulmonary diseases that are caused or worsened by tobacco smoking. Growing observational evidence suggests that symptoms and prognosis of these conditions improve upon smoking cessation. Despite...... dependence and what interventions currently work best to help pulmonary patients quit. Finally, we describe characteristics and management of any "hardcore" smoker who finds it difficult to quit with standard approaches....

  8. Women and Working Conditions: Prospects for Improvement?

    Science.gov (United States)

    Seguret, Marie-Claire

    1983-01-01

    Women's difficult working conditions are due to factors such as the nature and form of women's employment, their reproductive role, and family responsibilities. The relative importance of these factors must be assessed in order to redress inequalities. (SK)

  9. Image-guided ablation of painful metastatic bone tumors: a new and effective approach to a difficult problem

    Energy Technology Data Exchange (ETDEWEB)

    Callstrom, Matthew R.; Charboneau, J. William; Atwell, Thomas D.; Farrell, Michael A.; Welch, Timothy J.; Maus, Timothy P. [Mayo Clinic, Department of Radiology, Rochester, MN (United States); Goetz, Matthew P.; Rubin, Joseph [Mayo Clinic, Department of Oncology, Rochester, MN (United States)

    2006-01-01

    Painful skeletal metastases are a common problem in cancer patients. Although external beam radiation therapy is the current standard of care for cancer patients who present with localized bone pain, 20-30% of patients treated with this modality do not experience pain relief, and few further options exist for these patients. For many patients with painful metastatic skeletal disease, analgesics remain the only alternative treatment option. Recently, image-guided percutaneous methods of tumor destruction have proven effective for treatment of this difficult problem. This review describes the application, limitations, and effectiveness of percutaneous ablative methods including ethanol, methyl methacrylate, laser-induced interstitial thermotherapy (LITT), cryoablation, and percutaneous radiofrequency ablation (RFA) for palliation of painful skeletal metastases. (orig.)

  10. Breaking difficult news in a cross-cultural setting: a qualitative study about Latina mothers of children with down syndrome.

    Science.gov (United States)

    Sheets, Kayla M; Baty, Bonnie J; Vázquez, Juan Carlos; Carey, John C; Hobson, Wendy L

    2012-08-01

    Giving difficult news to patients represents a common dilemma for health care professionals. Based on three decades of research, various authors have proposed guidelines outlining the ideal setting, delivery, and timing. Existing publications focus on patients of European descent and may not be applicable in cross-cultural settings. We explored perceptions of Spanish-speaking mothers who have a child with Down syndrome and how they preferred to receive the news of their child's diagnosis. We conducted semi-structured qualitative interviews (n = 14), which were coded and analyzed by thematic networks to identify common themes. Six significant themes emerged: Cultural Belief System, Communication, Support/Lack of Support, Feelings Engendered, Medical Issues, and Medical System. One overarching theme of mother-child bonding encompassed all sub-themes. The mothers desired the news in a more positive, balanced light and with more complete explanations about the condition. Mothers felt excluded from the diagnostic process and wanted to be better informed about the need for diagnostic studies. Participants used religious beliefs to explain the reason for their child's condition. Many factors influenced Latina mothers' ability to bond initially with their children with Down syndrome. Ideally, these factors should be acknowledged during informing interviews to assist Latino families in adjustment.

  11. Impact of target probability on single-trial EEG target detection in a difficult rapid serial visual presentation task.

    Science.gov (United States)

    Cecotti, Hubert; Sato-Reinhold, Joyce; Sy, Jocelyn L; Elliott, James C; Eckstein, Miguel P; Giesbrecht, Barry

    2011-01-01

    In non-invasive brain-computer interface (BCI), the analysis of event-related potentials (ERP) has typically focused on averaged trials, a current trend is to analyze single-trial evoked response individually with new approaches in pattern recognition and signal processing. Such single trial detection requires a robust response that can be detected in a variety task conditions. Here, we investigated the influence of target probability, a key factor known to influence the amplitude of the evoked response, on single trial target classification in a difficult rapid serial visual presentation (RSVP) task. Our classification approach for detecting target vs. non target responses, considers spatial filters obtained through the maximization of the signal to signal-plus-noise ratio, and then uses the resulting information as inputs to a Bayesian discriminant analysis. The method is evaluated across eight healthy subjects, on four probability conditions (P=0.05, 0.10, 0.25, 0.50). We show that the target probability has a statistically significant effect on both the behavioral performance and the target detection. The best mean area under the ROC curve is achieved with P=0.10, AUC=0.82. These results suggest that optimal performance of ERP detection in RSVP tasks is critically dependent on target probability.

  12. Label free fragment screening using surface plasmon resonance as a tool for fragment finding - analyzing parkin, a difficult CNS target.

    Directory of Open Access Journals (Sweden)

    Karin Regnström

    Full Text Available Surface Plasmon Resonance (SPR is rarely used as a primary High-throughput Screening (HTS tool in fragment-based approaches. With SPR instruments becoming increasingly high-throughput it is now possible to use SPR as a primary tool for fragment finding. SPR becomes, therefore, a valuable tool in the screening of difficult targets such as the ubiquitin E3 ligase Parkin. As a prerequisite for the screen, a large number of SPR tests were performed to characterize and validate the active form of Parkin. A set of compounds was designed and used to define optimal SPR assay conditions for this fragment screen. Using these conditions, more than 5000 pre-selected fragments from our in-house library were screened for binding to Parkin. Additionally, all fragments were simultaneously screened for binding to two off target proteins to exclude promiscuous binding compounds. A low hit rate was observed that is in line with hit rates usually obtained by other HTS screening assays. All hits were further tested in dose responses on the target protein by SPR for confirmation before channeling the hits into Nuclear Magnetic Resonance (NMR and other hit-confirmation assays.

  13. Non-adherence in difficult asthma: time to take it seriously.

    Science.gov (United States)

    Heaney, Liam G; Horne, Rob

    2012-03-01

    Recent studies have demonstrated a high prevalence of non-adherence with anti-inflammatory medication in patients referred for specialist assessment with difficult-to-control asthma. As well as poor asthma outcome and increased healthcare cost, failure to detect non-adherence makes identification of true treatment-resistant/refractory asthma challenging. This is because guideline definitions of refractory asthma are all predicated on failure to respond to high-dose anti-inflammatory therapy but do not state how adherence with this therapy should be assessed. With the advent of novel expensive biological therapies, the systematic identification of non-adherence becomes more essential to avoid targeting therapies at an inappropriate patient group. Novel biomarkers of steroid exposure, in combination with more traditional surrogate measures such as prescription filling assessment, may allow more objective assessments of non-adherence to be developed in the future. When identified, non-adherence can potentially be targeted and improved, but the key challenge is to empower patients to make informed choices about medicines rather than decisions influenced by misplaced beliefs about benefit and harm. There is an urgent need for the systematic development of individualised interventions which allow non-adherence to be effectively managed. Thus, non-adherence must become a priority in the clinical assessment of difficult-to-control asthma because addressing non-adherence is likely to deliver greater benefits in this group than any novel treatment. It is essential that future research examines strategies and interventions to address non-adherence in subjects with difficult-to-control asthma.

  14. Long-Term Fosfomycin-Tromethamine Oral Therapy for Difficult-To-Treat Chronic Bacterial Prostatitis

    Science.gov (United States)

    Pigrau, Carles; Rodríguez-Pardo, Dolors; Fernández-Hidalgo, Nuria; Andreu, Antonia; Larrosa, Nieves; Almirante, Benito

    2015-01-01

    This is a retrospective study of 15 difficult-to-treat (i.e., exhibiting previous failure, patient side effects, or resistance to ciprofloxacin and co-trimoxazole) chronic bacterial prostatitis infections (5 patients with multidrug-resistant Enterobacteriaceae [MDRE]) receiving fosfomycin-tromethamine at a dose of 3 g per 48 to 72 h for 6 weeks. After a median follow-up of 20 months, 7 patients (47%) had a clinical response, and 8 patients (53%) had persistent microbiological eradication; 4/5 patients with MDRE isolates achieved eradication. There were no side effects. Fosfomycin-tromethamine is a possible alternative therapy for chronic bacterial prostatitis. PMID:26666924

  15. History Matters: What Happens When African Americans Confront Their Difficult Past.

    Science.gov (United States)

    Seitz, Phillip

    2016-05-01

    History and Reconstruction is an interdisciplinary project to assess the impact of African American history education for black men. Under the theory of trauma recovery, leading scholars of African American history worked with a group of ten ex-offenders, supported by the services of a psychologist and an African American cultural expert and storyteller. Results based on psychological testing and qualitative feedback showed that history can be a catalyst for personal development and transformation. It also demonstrated that difficult history can be taught and assimilated for audience benefit. History and Reconstruction was supported by the Pew Center for Arts and Heritage.

  16. The diagnosis and treatment of difficult asthma%难治性哮喘的诊治

    Institute of Scientific and Technical Information of China (English)

    林勇; 朱晓莉

    2009-01-01

    @@ 大多数轻度或中度哮喘患者,通过规则使用抗炎和支气管扩张药物能实现哮喘控制.但是,一小部分患者尽管使用最大剂量的吸入性药物仍有症状持续存在,并频繁发作或持续气流受限.这些患者大多属于"难治性哮喘(difficult asthma)",占哮喘病例总数的5%~8%.

  17. AIRWAY ASSESSMENT FOR ANTICIPATION OF DIFFICULT INTUBATION: A DOUBLE BLIND COMPARATIVE STUDY

    Directory of Open Access Journals (Sweden)

    Ushakumary

    2016-05-01

    Full Text Available BACKGROUND AND AIMS In this era of high technology, we still face an ageless problem in anaesthesia – the difficult airway. In 1997, Smarajith Sur Roy of India introduced a new airway index to predict difficult intubation. Aim of the study is to compare the new airway index with modified Mallampati classification and also with Cormack and Lehane grading for predicting intubation difficulty. MATERIALS AND METHODS The study was conducted on 200 patients undergoing various surgeries at a Government Medical College Hospital. Patients between the age group of 15 to 50 years and belonging to American Society of Anaesthesiologist Grade 1 or 2 were selected. Patients were graded using Modified Mallampati classification. Then in hyperextended neck, the distance between the angle of mandible and the midpoint of Symphysis menti (Variable A and the distance between the symphysis menti and the thyroid notch (Variable B were taken in centimetres and A/B ratio calculated. This ratio is the New Airway Index. After premedication and induction of anaesthesia, laryngoscopy was done, Cormack and Lehane grade noted and intubation difficulty assessed. The predictive value of the new airway index was compared against modified Mallampati classification as well as Cormack and Lehane grading and statistical significance assessed. RESULTS The observations made on the calculation of the new airway index were, 1. When the airway index was 1, the intubation was very easy, irrespective of the findings of Mallampati classification and Cormack and Lehane Grade was 1; 2. When the index was 1 to 1.399, the intubation was easier and the laryngoscopic findings were of Cormack and Lehane Grade II; 3. When the index was 1.4 or more, the intubation was difficult and they belonged to Cormack and Lehane Grade III. The predictability was also statistically very significant when compared with modified Mallampati classification (p<0.001 – Chi square test - test for single proportion

  18. Investigation of difficult component effects on FEM vibration prediction for the AH-1G helicopter

    Science.gov (United States)

    Dompka, Robert V.

    1988-01-01

    Under the NASA-sponsored Design Analysis Methods for Vibrations program, a series of ground vibration tests and NASTRAN finite element model correlations were conducted on the Bell AH-1G helicopter gunship to investigate the effects of difficult components on the vibration response of the airframe. Secondary structure and damping were found to have significant effects on the frequency response of the airframe above 15 Hz. The nonlinear effects of thrust stiffening and elastomeric mounts on the low-frequency pylon modes below the main rotor were also significant.

  19. Endotracheal intubation under local anesthesia and sedation in an infant with difficult airway

    Directory of Open Access Journals (Sweden)

    Kirti N Saxena

    2012-01-01

    Full Text Available Management of the difficult airway in an infant is a challenge for the anesthesiologist. A 10-month-old infant presented to an otolaryngologist with nasopharyngeal mass since birth, which had increased rapidly in size in the last 1 month and was hanging through the cleft palate into the oropharynx. The infant was scheduled for excision of the nasopharyngeal mass through a maxillary approach and the tongue mass through an oral approach under general anesthesia. This case report describes endotracheal intubation performed successfully under sedation and local anesthesia in an infant with a nasal mass protruding through the cleft palate into the oropharynx.

  20. Evaluation of the Airtraq and Macintosh laryngoscopes in patients at increased risk for difficult tracheal intubation.

    LENUS (Irish Health Repository)

    Maharaj, C H

    2008-02-01

    The Airtraq, a novel single use indirect laryngoscope, has demonstrated promise in the normal and simulated difficult airway. We compared the ease of intubation using the Airtraq with the Macintosh laryngoscope, in patients at increased risk for difficult tracheal intubation, in a randomised, controlled clinical trial. Forty consenting patients presenting for surgery requiring tracheal intubation, who were deemed to possess at least three characteristics indicating an increased risk for difficulty in tracheal intubation, were randomly assigned to undergo tracheal intubation using a Macintosh (n = 20) or Airtraq (n = 20) laryngoscope. All patients were intubated by one of three anaesthetists experienced in the use of both laryngoscopes. Four patients were not successfully intubated with the Macintosh laryngoscope, but were intubated successfully with the Airtraq. The Airtraq reduced the duration of intubation attempts (mean (SD); 13.4 (6.3) vs 47.7 (8.5) s), the need for additional manoeuvres, and the intubation difficulty score (0.4 (0.8) vs 7.7 (3.0)). Tracheal intubation with the Airtraq also reduced the degree of haemodynamic stimulation and minor trauma compared to the Macintosh laryngoscope.

  1. Case Report: Modified Laparoscopic Subtotal Cholecystectomy: An Alternative Approach to the “Difficult Gallbladder”

    Science.gov (United States)

    Segal, Michael S.; Huynh, Richard H.; Wright, George O.

    2017-01-01

    Patient: Male, 56 Final Diagnosis: Acute cholecystitis Symptoms: Abdominal pain Medication:— Clinical Procedure: Laparoscopic subtotal cholecystectomy Specialty: Surgery Objective: Unusual clinical course Background: Laparoscopic cholecystectomy is a commonly performed surgical procedure. In certain situations visualization of the Callot triangle can become difficult due to inflammation, adhesions, and sclerosing of the anatomy. Without being able to obtain the “critical view of safety” (CVS), there is increased risk of damage to vital structures. An alternative approach to the conventional conversion to an open cholecystectomy (OC) would be a laparoscopic subtotal cholecystectomy (LSC). Case Report: We present a case of a 56-year-old male patient with acute cholecystitis with a “difficult gallbladder” managed with LSC. Due to poor visualization of the Callot triangle due to adhesions, safe dissection was not feasible. In an effort to avoid injury to the common bile duct (CBD), dissection began at the dome of the gallbladder allowing an alternative view while ensuring safety of critical structures. Conclusions: We discuss the potential benefits and risks of LSC versus conversion to OC. Our discussion incorporates the pathophysiology that allows LSC in this particular circumstance to be successful, and the considerations a surgeon faces in making a decision in management. PMID:28220035

  2. Screening difficult-to-reach populations for tuberculosis using a mobile medical unit, Punjab India

    Science.gov (United States)

    Binepal, G.; Agarwal, P.; Kaur, N.; Singh, B.; Bhagat, V.; Verma, R. P.; Satyanarayana, S.; Oeltmann, J. E.

    2015-01-01

    Background: In India, the National Health Mission has provided one mobile medical unit (MMU) per district in the state of Punjab to provide primary health care services for difficult-to-reach populations. Objectives: To determine the number of patients with presumptive tuberculosis (TB) and the number of TB cases detected and treated among patients who used the MMU services from May to December 2012 in Mohali district, Punjab, India. Methods: A cross-sectional study was conducted and registers of the out-patient, laboratory, radiology, and TB departments of the MMU were reviewed to determine the number of persons presumed to have TB and the number of persons diagnosed with TB. Results: Of 8346 patients who attended the MMUs, 663 (8%) had symptoms suggestive of TB. Among those with TB symptoms, 540 (81%) were evaluated for pulmonary TB using sputum examination or chest X-ray. In total, 58 (11%) patients had clinical or laboratory evidence of pulmonary TB, of whom 21 (36%) started anti-tuberculosis treatment. Conclusion: As MMUs are an integral part of the general public health system, these units have the potential to detect TB cases among difficult-to-reach populations. Additional research is required to optimise the diagnosis of TB at MMUs and to increase rates of TB treatment initiation. PMID:26767177

  3. Jungle Giants: Assessing Sustainable Harvesting in a Difficult-to-Survey Species (Python reticulatus).

    Science.gov (United States)

    Natusch, Daniel J D; Lyons, Jessica A; Mumpuni; Riyanto, Awal; Shine, Richard

    2016-01-01

    Sustainability of wildlife harvests is critical but difficult to assess. Evaluations of sustainability typically combine modelling with the measurement of underlying abundances. For many taxa harvested in developing countries, however, abundances are near-impossible to survey and a lack of detailed ecological information impedes the reliability of models. In such cases, repeated surveys of the attributes of harvested individuals may provide more robust information on sustainability. If the numbers, sizes and other demographic attributes of animals taken for the commercial trade do not change over biologically significant time intervals (decades), there is a prima facie case that the harvest is indeed sustainable. Here, we report the results of examinations of > 4,200 reticulated pythons (Python reticulatus) taken for the commercial leather industry in northern and southern Sumatra, Indonesia. The numbers, mean body sizes, clutch sizes, sizes at maturity and proportion of giant specimens have not decreased between our first surveys (1995) and repeat surveys (2015). Thus, despite assumptions to the contrary, the harvest appears to be sustainable. We use our data to inform the design of future monitoring programs for this species. Our study underpins the need for robust science to inform wildlife trade policy and decision-making, and urges wildlife managers to assess sustainability of difficult-to-survey terrestrial wildlife by drawing inferences directly from the harvest itself.

  4. The Human and Economic Burden of Difficult-to-Treat Gouty Arthritis.

    Science.gov (United States)

    Bardin, Thomas; Voshaar, Martijn A H Oude; van de Laar, Martinus A F J

    2015-10-01

    Gouty arthritis, one of the most painful and common forms of adult arthritis, is caused by monosodium urate crystal deposits in joints, most often in the lower extremities. Crystals trigger an inflammatory response leading to acute flares characterized by a rapid onset of pain, warmth, swelling, and redness in involved joints. Over time, continued monosodium urate crystal deposits and inflammation can lead to chronic tophaceous gout that result in bone erosion, progressing to joint destruction and significant disability. The goal of therapy in an acute gout flare is prompt and safe termination of pain and inflammation. Acute gouty arthritis is usually treated with nonsteroidal anti-inflammatory drugs, colchicine, or corticosteroids. However, for a growing number of patients, current standard treatments are ineffective or are contraindicated, largely due to the presence of comorbidities. Gouty arthritis can have a major negative impact of health-related quality of life, especially in patients with difficult-to-treat disease, as revealed by recent studies comparing health-related quality of life with that of the general population. Additionally, gouty arthritis also constitutes an important economic burden through absence from work and medical costs. This burden is even greater in patients with difficult-to-treat disease.

  5. Exhaled nitric oxide predicts control in patients with difficult-to-treat asthma.

    Science.gov (United States)

    Pérez-de-Llano, L A; Carballada, F; Castro Añón, O; Pizarro, M; Golpe, R; Baloira, A; Vázquez Caruncho, M; Boquete, M

    2010-06-01

    We aimed to evaluate the accuracy of baseline exhaled nitric oxide fraction (F(eNO)) to recognise individuals with difficult-to-treat asthma who have the potential to achieve control with a guideline-based stepwise strategy. 102 consecutive patients with suboptimal asthma control underwent stepwise increase in the treatment with maximal fluticasone/salmeterol combination dose for 1 month. Then, those who remained uncontrolled received oral corticosteroids for an additional month. With this approach, 53 patients (52%) gained control. Those who achieved control were more likely to have positive skin results (60.4% versus 34%; p = 0.01), positive bronchodilator test (57.1% versus 35.8%; p = 0.02) and peak expiratory flow variability > or =20% (71.1% versus 49.1%; p = 0.04). Conversely, depression was more frequent in those who remained uncontrolled (18.4 % versus 43.4 %; p = 0.01). An F(eNO) value > or =30 ppb demonstrated a sensitivity of 87.5% (95% CI 73.9-94.5%) and a specificity of 90.6% (95% CI 79.7-95.9%) for the identification of responsive asthmatics. The current results suggest that F(eNO) can identify patients with difficult-to-treat asthma and the potential to respond to high doses of inhaled corticosteroids or systemic steroids.

  6. The clinical practice with difficult patients in the collective imaginary of psychology students

    Directory of Open Access Journals (Sweden)

    Heloisa Aguetoni Cambuí

    2014-06-01

    Full Text Available The conducts that occur in the context of intersubjectivity are arranged from unconscious psychological fields which influence individual and collective practices. Therefore, it becomes important to consider the collective imagination of psychology students as this may interfere about the exercise of their clinical practice. The aim of this study was to investigate the collective imaginary of psychology students about the clinical practice with patients considered difficult in the analytic setting. Based on the psychoanalytic method, this research utilized the Procedure of Drawings-Stories with Theme in group interview, for the purpose of discuss on the vicissitudes of contemporary clinical work with these patients. In the present study, participated eight undergraduates of the eighth semester of a psychology course.The resulting material of the interview constituted by drawings-stories and the narrative was psychoanalytically analyzed, in the light of the Multiple Fields Theory proposed by Herrmann and in dialogue with the winnicottian thought, allowing to apprehend the follows fields of affective-emotional meaning: “Insecurity”, “Perfect Therapist”, “Mutuality”, “Experience”, “Negation of Madness” and “Madness as tal”. In general the imaginary manifestations of psychology students constitute the analytic relationship with the difficult patients by mobilizing feelings of insecurity, distress, anxiety, incapacity and helplessness.

  7. Prostatic Stromal Tumor of Uncertain Malignant Potential Which Was Difficult to Diagnose

    Directory of Open Access Journals (Sweden)

    Satoko Matsuyama

    2015-01-01

    Full Text Available Here, we report a case of stromal tumor of uncertain malignant potential (STUMP that was difficult to diagnose. A 53-year-old male was found to have a hard nodule on digital rectal examination; magnetic resonance imaging revealed a large nodule on the left side of the prostate, indicating prostate cancer. However, pathological diagnosis of the biopsy specimen was benign prostatic hyperplasia. Although a papillary tumor in the prostatic urethra was also seen on urethrocystoscopy, the tumor specimen obtained from transurethral resection was not malignant. The tumor in the prostatic urethra recurred only 3 months after transurethral resection, and pathological findings revealed benign hyperplasia not only in the stromal tissue but also in the epithelium; therefore, the prostate tumor was suspected to be STUMP. It took many prostate pathologists a long time to reach the final diagnosis of STUMP. STUMP is a rare benign tumor, difficult to diagnose, and sometimes transforms into stromal sarcoma. Thus, we should consider radical resection in such cases.

  8. On the Improvement of Multi-Legged Locomotion over Difficult Terrains using a Balance Stabilization Method

    Directory of Open Access Journals (Sweden)

    Javaid Iqbal

    2012-03-01

    Full Text Available This paper deals with the real‐time walking of a multi-legged robot over difficult terrains using a balance stabilization method in order to achieve a fast speed and robust locomotion with minimal tracking errors. The stabilization method is described through a ZMP‐based online pattern‐generation scheme inspired by bio‐mimetic stepping leg transferences with an active balance control so as to reduce the propagation of instability while performing rapid stepping actions for a fast walking gait in the presence of external disturbances. The proposed control system uses a force‐position controller [14] which takes impact dynamics into consideration to compensate for the effect of external perturbations during walking by estimating impulsive forces in real‐time. Using the proposed stabilization method, the robot plans appropriate footholds on the ground in order to achieve a reasonable average walking speed over difficult terrains in a natural environment. The success and performance of the proposed method is realized through dynamic simulations and real‐world experiments using a six‐legged hexapod robot.

  9. Effect of Tracheostomy on Weaning Parameters in Difficult-to-Wean Mechanically Ventilated Patients: A Prospective Observational Study.

    Directory of Open Access Journals (Sweden)

    Chor-Kuan Lim

    Full Text Available Weaning parameters are commonly measured through an endotracheal tube in mechanically ventilated patients recovering from acute respiratory failure, however this practice has rarely been evaluated in tracheostomized patients. This study aimed to investigate changes in weaning parameters measured before and after tracheostomy, and to explore whether the data measured after tracheostomy were associated with weaning outcomes in difficult-to-wean patients.In a two-year study period, we enrolled orotracheally intubated patients who were prepared for tracheostomy due to difficult weaning. Weaning parameters were measured before and after the conversion to tracheostomy and compared, and the post-tracheostomy data were tested for associations with weaning outcomes.A total of 86 patients were included. After tracheostomy, maximum inspiratory pressure (mean difference (Δ = 4.4, 95% CI, 2.7 to 6.1, P<0.001, maximum expiratory pressure (Δ = 5.4, 95% CI, 2.9 to 8.0, P<0.001 and tidal volume (Δ = 33.7, 95% CI, 9.0 to 58.5, P<0.008 significantly increased, and rapid shallow breathing index (Δ = -14.6, 95% CI, -25.4 to -3.7, P<0.009 and airway resistance (Δ = -4.9, 95% CI, -5.8 to -4.0, P<0.001 significantly decreased. The patients who were successfully weaned within 90 days of the initiation of mechanical ventilation had greater increments in maximum inspiratory pressure (5.9 vs. 2.4, P = 0.04 and maximum expiratory pressure (8.0 vs. 2.0, P = 0.02 after tracheostomy than those who were unsuccessfully weaned.In conclusion, the conversion from endotracheal tube to tracheostomy significantly improved the measured values of weaning parameters in difficult-to-wean patients who subsequently weaned successfully from the mechanical ventilator. The change was significant only for airway resistance in patients who failed weaning.ClinicalTrials.gov NCT01312142.

  10. Effect of Tracheostomy on Weaning Parameters in Difficult-to-Wean Mechanically Ventilated Patients: A Prospective Observational Study

    Science.gov (United States)

    Lim, Chor-Kuan; Ruan, Sheng-Yuan; Lin, Feng-Ching; Wu, Chao-Ling; Chang, Hou-Tai; Jerng, Jih-Shuin; Wu, Huey-Dong; Yu, Chong-Jen

    2015-01-01

    Background and Objective Weaning parameters are commonly measured through an endotracheal tube in mechanically ventilated patients recovering from acute respiratory failure, however this practice has rarely been evaluated in tracheostomized patients. This study aimed to investigate changes in weaning parameters measured before and after tracheostomy, and to explore whether the data measured after tracheostomy were associated with weaning outcomes in difficult-to-wean patients. Methods In a two-year study period, we enrolled orotracheally intubated patients who were prepared for tracheostomy due to difficult weaning. Weaning parameters were measured before and after the conversion to tracheostomy and compared, and the post-tracheostomy data were tested for associations with weaning outcomes. Results A total of 86 patients were included. After tracheostomy, maximum inspiratory pressure (mean difference (Δ) = 4.4, 95% CI, 2.7 to 6.1, P<0.001), maximum expiratory pressure (Δ = 5.4, 95% CI, 2.9 to 8.0, P<0.001) and tidal volume (Δ = 33.7, 95% CI, 9.0 to 58.5, P<0.008) significantly increased, and rapid shallow breathing index (Δ = -14.6, 95% CI, -25.4 to -3.7, P<0.009) and airway resistance (Δ = -4.9, 95% CI, -5.8 to -4.0, P<0.001) significantly decreased. The patients who were successfully weaned within 90 days of the initiation of mechanical ventilation had greater increments in maximum inspiratory pressure (5.9 vs. 2.4, P = 0.04) and maximum expiratory pressure (8.0 vs. 2.0, P = 0.02) after tracheostomy than those who were unsuccessfully weaned. Conclusions In conclusion, the conversion from endotracheal tube to tracheostomy significantly improved the measured values of weaning parameters in difficult-to-wean patients who subsequently weaned successfully from the mechanical ventilator. The change was significant only for airway resistance in patients who failed weaning. Trial Registration ClinicalTrials.gov NCT01312142 PMID:26379127

  11. Assets for policy making in health promotion: overcoming political barriers inhibiting women in difficult life situations to access sport facilities.

    Science.gov (United States)

    Rütten, Alfred; Abu-Omar, Karim; Frahsa, Annika; Morgan, Antony

    2009-12-01

    Although the need for intersectoral policy making in health promotion has been commonplace and a high priority for several decades, there is still a lack of appropriate methods available to assess the inputs, processes, and outcomes associated with the effectiveness of such approaches, particularly in relation to sectors outside of health. This paper demonstrates how asset based models to intersectoral policy making in health promotion can improve the effectiveness of projects aiming to improve health and related outcomes. In particular, it summarises how asset based approaches to the planning and implementation of health promotion programmes can be used to develop our methods for assessing intersectorial actions. The paper is based on the findings from a local neighbourhood project based in Erlangen, Germany, aiming to improve the opportunities for physical activity among women in difficult life situations. The neighbourhood was characterised by high rates of unemployment, social welfare recipients, and migrants. Ethnographic methods enabled us to highlight the range of health related assets available in the neighbourhood which could be activated to improve access to and uptake of physical activity amongst the target population. Results indicate that intersectoral policies seeking to improve health outcomes, are more likely to be successful if they maximise the opportunities for making the most of the assets that exist in individuals, communities and organisations. This study demonstrates how the asset model was used to create the supportive environments which facilitated women from the target population to work with policy makers on an equal footing. Their involvement in project planning and implementation helped to achieve the structural changes required to achieve the aims of the project. These included the establishment of a new job position at the city office for sports and improved access to sport facilities for women in difficult life situations.

  12. Safety and risk factors for difficult endoscopist-directed ERCP sedation in daily practice: a hospital-based case-control study

    Directory of Open Access Journals (Sweden)

    Enrique Pérez-Cuadrado-Robles

    Full Text Available Background: There are limited data concerning endoscopist-directed endoscopic retrograde cholangiopancreatography deep sedation. The aim of this study was to establish the safety and risk factors for difficult sedation in daily practice. Patients and methods: Hospital-based, frequency matched case-control study. All patients were identified from a database of 1,008 patients between 2014 and 2015. The cases were those with difficult sedations. This concept was defined based on the combination of the receipt of high-doses of midazolam or propofol, poor tolerance, use of reversal agents or sedation-related adverse events. The presence of different factors was evaluated to determine whether they predicted difficult sedation. Results: One-hundred and eighty-nine patients (63 cases, 126 controls were included. Cases were classified in terms of high-dose requirements (n = 35, 55.56%, sedation-related adverse events (n = 14, 22.22%, the use of reversal agents (n = 13, 20.63% and agitation/discomfort (n = 8, 12.7%. Concerning adverse events, the total rate was 1.39%, including clinically relevant hypoxemia (n = 11, severe hypotension (n = 2 and paradoxical reactions to midazolam (n = 1. The rate of hypoxemia was higher in patients under propofol combined with midazolam than in patients with propofol alone (2.56% vs. 0.8%, p < 0.001. Alcohol consumption (OR: 2.674 [CI 95%: 1.098-6.515], p = 0.030, opioid consumption (OR: 2.713 [CI 95%: 1.096-6.716], p = 0.031 and the consumption of other psychoactive drugs (OR: 2.015 [CI 95%: 1.017-3.991], p = 0.045 were confirmed to be independent risk factors for difficult sedation. Conclusions: Endoscopist-directed deep sedation during endoscopic retrograde cholangiopancreatography is safe. The presence of certain factors should be assessed before the procedure to identify patients who are high-risk for difficult sedation.

  13. Synthesis and Characterization of Metal-Organic Frameworks (MOFs) That Are Difficult to Access De Novo

    Science.gov (United States)

    Karagiaridi, Olga

    Metal-organic frameworks (MOFs) are a class of intriguing hybrid materials, comprised of metal-based nodes joined by organic linkers into a crystalline, porous, three-dimensional lattice. Their signature properties (well-defined surfaces, tailorability and ultra-high porosity) render them promising candidates for many applications, including, but not limited to, gas storage, gas separation, catalysis and sensing. One of the greatest challenges associated with MOF synthesis lies in the fact that obtaining a desired MOF structure that is tailored to perform a specific application is often not trivial. Traditional synthetic pathways termed "de novo synthesis" (typically one-pot reactions between the MOF structural building blocks under solvothermal conditions) often give rise to side products that do not possess the desired structure. To circumvent this problem, we have studied in depth two powerful MOF synthetic techniques -- solvent-assisted linker exchange (SALE) and transmetalation. These are heterogeneous reactions of parent MOF crystals with concentrated solutions of organic linkers and inorganic metal salts, respectively, that lead to the replacement of the linkers or metal nodes within the parent MOFs by the desired components, while the overall framework topology is preserved. The projects described in this dissertation have aimed to apply these techniques to transform simple (unfunctionalized) and easy to synthesize representative materials from various MOF systems to structurally and functionally interesting daughter products. Examples include synthesis of MOFs that are energetically "unfavorable", extension of MOF cages by longer linker incorporation, functionalization of MOF pores and endowment of MOFs with permanent and persistent porosity. Through these projects, we have been able to formulate a set of rules that can be applied to predict the successful outcome of SALE. Since the allure of MOFs lies in their applications, expanding the range of

  14. Structured Communication: Teaching Delivery of Difficult News with Simulated Resuscitations in an Emergency Medicine Clerkship

    Directory of Open Access Journals (Sweden)

    Lamba, Sangeeta

    2015-03-01

    Full Text Available Introduction: The objective is to describe the implementation and outcomes of a structured communication module used to supplement case-based simulated resuscitation training in an emergency medicine (EM clerkship. Methods: We supplemented two case-based simulated resuscitation scenarios (cardiac arrest and blunt trauma with role-play in order to teach medical students how to deliver news of death and poor prognosis to family of the critically ill or injured simulated patient. Quantitative outcomes were assessed with pre and post-clerkship surveys. Secondarily, students completed a written self-reflection (things that went well and why; things that did not go well and why to further explore learner experiences with communication around resuscitation. Qualitative analysis identified themes from written self-reflections. Results: A total of 120 medical students completed the pre and post-clerkship surveys. Majority of respondents reported that they had witnessed or role-played the delivery of difficult news, but only few had real-life experience of delivering news of death (20/120, 17% and poor prognosis (34/120, 29%. This communication module led to statistically significant increased scores for comfort, confidence, and knowledge with communicating difficult news of death and poor prognosis. Pre-post scores increased for those agreeing with statements (somewhat/very much for delivery of news of poor prognosis: comfort 69% to 81%, confidence 66% to 81% and knowledge 76% to 90% as well as for statements regarding delivery of news of death: comfort 52% to 68%, confidence 57% to 76% and knowledge 76% to 90%. Respondents report that patient resuscitations (simulated and/or real generated a variety of strong emotional responses such as anxiety, stress, grief and feelings of loss and failure. Conclusion: A structured communication module supplements simulated resuscitation training in an EM clerkship and leads to a self-reported increase in knowledge

  15. Condition Monitoring

    DEFF Research Database (Denmark)

    Avenas, Yvan; Dupont, Laurent; Baker, Nick

    2015-01-01

    Power conversion systems are dependent on the performance and reliability of static converters. However, they are subject to frequent functional and environmental strains, which can induce failures. The anticipation of these failures is difficult but important so the operation of a system can...... be halted before a breakdown occurs. In the case of photovoltaic (PV) power plants, the system can be simplified into two distinct blocks: the solar panels/modules and the power inverter. A breakdown in either of these blocks can cause significant downtime in the system. Nevertheless, multiple solar module...

  16. Is a sigh "just a sigh"? Sighs as emotional signals and responses to a difficult task.

    Science.gov (United States)

    Teigen, Karl Halvor

    2008-02-01

    Sighing and the interpretation of sighs in everyday life seem never to have been the subject of psychological research. A questionnaire study of sighing showed that people associate sighing mainly with negative, low-intensity and deactivated emotional states. A second study investigated self/other differences in the interpretation of sighs in four hypothetical situations, revealing that sighs in other people are primarily perceived as signs of sadness, whereas own sighs are more often believed to express a state of "giving up" something or somebody. In a third experimental study participants worked on difficult (insoluble) puzzles, which generated many futile solution attempts, often accompanied by sighs. It is concluded that sighs are often unintentional expressions of an activity, plan or desire that has to be discarded, creating a pause before it can be replaced by a novel initiative.

  17. Case report of clival tuberculoma. Difficult to diagnose by means of a CT scan

    Energy Technology Data Exchange (ETDEWEB)

    Ichikawa, F.; Tachibana, S.; Miyasaka, Y.; Suwa, T.; Iida, H.; Kan, S.; Matsuda, Y.

    1987-02-01

    A patient with tuberculoma at the skull base was reported. Twenty-two years old, she had complained for ten years of amenorrhea, headache, and visual disturbance. On neurological examination, bitemporal hemianopsia, bilateral sixth nerve palsy, and recent right-side facial palsy were demonstrated. On radiological examination, a destructive lesion was found at the clivus. CT and MRI demonstrated, a space-taking lesion expanding to the floor of the third ventricle anteriorly, to the cerebello-pontine angle superiorly, and to the epipharynx inferiorly, and a marked swelling of the cerebellum, though no confirmative diagnosis could be obtained without a biopsy of the epipharyngeal tumor. The histological examination revealed that the tumor was tuberculoma. Medical treatment with INH, RFP, and steroids was effective. Although tuberculoma involving the skull base is very rare and rather difficult to diagnose, the authors would like to stress that early accurate diagnosis is very important because the lesion is curable with appropriate medical treatment.

  18. What factors make science test items especially difficult for students from minority groups?

    Directory of Open Access Journals (Sweden)

    Are Turmo

    2012-06-01

    Full Text Available Substantial gaps in science performance between majority and minority students are often found instandardized tests used in primary school. But at the item level, the gaps may vary significantly. Theaims of this study are: (1 to identify features of the test items in science (grade 5 and grade 8 students that can potentially explain group differences; and (2 to analyze what factors make test itemsespecially difficult for minority students. Explanatory variables such as reading load, item difficulty,item writing load, and use of the multiple-choice format are found to be major factors. The analysis reveals no empirical relationships between performance gap and either item subject domain, item test location, or the number of illustrations used in the item. Subtle issues regarding the design ofitems may influence the size of the performance gap at item level over and above the main explanatory variables. The gap can be reduced significantly by choosing “minority friendly” items.

  19. Diabetes and Pancreas: Why So Difficult? Potential Mechanisms of Elevated Serum Pancreatic Enzymes.

    Science.gov (United States)

    Matteucci, Elena; Giampietro, Ottavio

    2016-01-01

    Diabetes mellitus has been associated with a higher risk of exocrine pancreas disorders despite inconsistencies among studies, presumably due to the presence of several (often unmeasured) confounding factors. As a direct consequence of this uncertainty, the relationship between anti-diabetic therapies and pancreatic adverse reactions is difficult to evaluate and remains far from being clarified. Indeed, the on going debate on the safety of incretin-based therapies does not lie in any definite conclusion. Serum level of amylases and lipase reflects the balance between production from different tissues and clearance, but it may be also influenced by numerous molecular, cellular, and systems mechanisms. The present review tries to provide an overview of potential biochemical pathways that may underlie pancreatic hyperenzymemia in health and diabetes mellitus.

  20. Why is it so difficult to explain the decline in traffic fatalities?

    DEFF Research Database (Denmark)

    Elvik, Rune

    2016-01-01

    ) Data are incomplete or missing about many potentially relevant variables. (4) Some variables are affected by measurement errors or discontinuities in time series. (5) Many of the explanatory variables are very highly correlated with each other and with time. These problems are illustrated using Norway...... argues that it is difficult to give a scientifically rigorous explanation of the decline in traffic fatalities. There are five main problems: (1) There are very many potentially relevant explanatory variables. (2) Some of the relevant explanatory variables change slowly at an almost constant rate. (3...... as an example. It is shown that the problems listed above can result in models that are non-sensical although they pass formal tests of model quality. The lesson is that one should never judge how good a model is merely in terms of formal criteria. Some strategies for developing more meaningful models...

  1. Why is it so difficult to integrate ethics in Health Technology Assessment (HTA)? The epistemological viewpoint.

    Science.gov (United States)

    Refolo, P; Sacchini, D; Brereton, L; Gerhardus, A; Hofmann, B; Lysdahl, K B; Mozygemba, K; Oortwijn, W; Tummers, M; van der Wilt, G J; Wahlster, P; Spagnolo, A G

    2016-10-01

    Ethics has been identified as a key element in Health Technology Assessment (HTA) since its conception. However, ethical issues are still not frequently addressed explicitly in HTA. Several valuable reasons have been identified. The basis of the article is the claim that ethics is often not part of HTA for "epistemological reasons". Hence, the main aim of the contribution is to explore in more details and emphasize them by using the fact/value dichotomy. Our conclusion is that current HTA configuration is predominantly based on the comparison among objective and empirically testable "facts", whilst ethics is not empirically testable. In this sense, there is a sort of "epistemological gap", which can explain why it is so difficult to integrate ethics in HTA. We suggest that the epistemological differences among the various domains of HTA are addressed more explicitly.

  2. [Difficult airway management for general anesthesia in two patients with Kartagener syndrome].

    Science.gov (United States)

    Andoh, Taiki; Momota, Yoshihiro; Murata, Kenji; Kotani, Junichiro

    2010-05-01

    Two patients with Kartagener syndrome were managed under general anesthesia by nasal intubation for sagital split ramus osteotomy. Many episodes of expectoration were encountered in the former patient's perioperative period and the expectoration discharge was inadequate by postoperative nausea, leading to trouble in airway management. In the second patient, tube collapse was caused after intubation by serious nasal cavity strangulation, and re-intubation was necessary. Expectoration is seen resulting from decreased ciliary function with bronchiectasis during anesthetic management of patients with Kartagener syndrome. It is important to prevent lung complications by nausea prevention and pain killing in the postoperative period, in addition to proper suctioning in the perioperative period. Furthermore, there is nasal cavity narrowing by chronic sinusitis. When performing nasal intubation, the difficult airway management is required.

  3. Successful management of a difficult cancer pain patient by appropriate adjuvant and morphine titration

    Directory of Open Access Journals (Sweden)

    Shiv PS Rana

    2011-01-01

    Full Text Available Morphine has been used for many years to relieve cancer pain. Oral morphine (in either immediate release or modified release form remains the analgesic of choice for moderate or severe cancer pain. The dose of oral morphine is titrated up to achieve adequate relief from pain with minimal side effects. Antidepressant and anticonvulsant drugs, when used in addition to conventional analgesics, give excellent relief from cancer pain. Most cancer pain responds to pharmacological measures with oral morphine but some pain like neuropathic and bony pain, pain in children and elderly age group, and advanced malignancy pain are very difficult to treat. Here, we report the management of a similar patient of severe cancer pain and the difficulty that we came across during dose titration of oral morphine and adjuvant analgesic.

  4. Effect of Ultrasound-Guided Placement of Difficult-to-Place Peripheral Venous Catheters

    DEFF Research Database (Denmark)

    Partovi-Deilami, Kohyar; Nielsen, Jesper; Moller, Ann M

    2016-01-01

    ) with ultrasound. Procedure time was reduced from 20 to 10 minutes, discomfort was unchanged, and the median number of skin punctures decreased from 3 to 2. The incidence of central venous catheter placement dropped from 34% to 7%. Implementation of a training program and a mobile service in which nurse...... operated by nurse anesthetists for these patients. This prospective observational study with a pre/post design focused on inpatients with DIVA referred for PVC placement, a service provided by nurse anesthetists in most Scandinavian hospitals. The rate of success, procedure time, number of skin punctures......, discomfort, catheter size, location, and incidence of central venous catheter placement are reported before and after implementation of a training program and a mobile service using ultrasound to place difficult-to-place PVCs. The success rate increased from 0% (0 of 33 patients) to 83% (58 of 70 patients...

  5. [Pancreatic injury in abdominal trauma in children: difficult to diagnose and treat].

    Science.gov (United States)

    Fennema, Eelco M; Nellensteijn, David R; Nieuwenhuijs, Vincent B; van Rheenen, Patrick F; ten Duis, Henk-Jan; Hulscher, Jan B F

    2011-01-01

    Traumatic injury of the pancreas is rare in children. It is often difficult to diagnose due to the lack of signs and symptoms, and shortly after trauma laboratory values may be normal. In addition, ultrasound and CT are often not specific. The treatment of grade 1 and 2 injury is non-operative. Although there seems to be a shift towards non-operative management of grade 3-5 injuries (with injury of the pancreatic duct), this is still a matter of debate. We describe 3 children, a girl of 2.5 years-old and a boy of 7 years-old, with grade 3 pancreatic injuries and an 8-year-old boy with a grade 2 injury. We demonstrate that the diagnosis is hard to establish, while the consequences of this injury can be serious. Thinking of pancreatic injury is most important to its diagnosis. We advocate referral to or consultation of specialized centres in these cases.

  6. Evaluation of Rapid Molecular Detection Assays for Salmonella in Challenging Food Matrices at Low Inoculation Levels and Using Difficult-to-Detect Strains.

    Science.gov (United States)

    Ryan, Gina; Roof, Sherry; Post, Laurie; Wiedmann, Martin

    2015-09-01

    Assays for detection of foodborne pathogens are generally initially evaluated for performance in validation studies carried out according to guidelines provided by validation schemes (e.g., AOAC International or the International Organization for Standardization). End users often perform additional validation studies to evaluate the performance of assays in specific matrices (e.g., specific foods or raw material streams of interest) and with specific pathogen strains. However, these types of end-user validations are typically not well defined. This study was conducted to evaluate a secondary end user validation of four AOAC-validated commercial rapid detection assays (an isothermal nucleic acid amplification, an immunoassay, and two PCR-based assays) for their ability to detect Salmonella in two challenging matrices (dry pet food and dark chocolate). Inclusivity was evaluated with 68 diverse Salmonella strains at low population levels representing the limit of detection (LOD) for each assay. One assay detected all strains at the LOD, two assays detected multiple strains only at 10 times the LOD, and the fourth assay failed to detect two strains (Salmonella bongori and S. enterica subsp. houtenae) even at 1,000 times the LOD; this assay was not further evaluated. The three remaining assays were subsequently evaluated for their ability to detect five selected Salmonella strains in food samples contaminated at fractional levels. Unpaired comparisons revealed no significant difference between the results for each given assay and the results obtained with the reference assay. However, analysis of paired culture-confirmed results revealed assay false-negative rates of 4 to 26% for dry pet food and 12 to 16% for dark chocolate. Overall, our data indicate that rapid assays may have high false-negative rates when performance is evaluated under challenging conditions, including low-moisture matrices, strains that are difficult to detect, injured cells, and low inoculum

  7. Characteristic aspects of the housing and utilitiescomplex as a difficult organizational and economic system

    Directory of Open Access Journals (Sweden)

    Butyrin Andrey Yur'evich

    2014-02-01

    Full Text Available The existing system of housing and utility services functioning is carried out for providing the relevant living environment standards to the population by means of effective functioning of the system of uninterrupted providing housing and utility services according to existing requirements of the Russian standards. Today there is a number of problems, which doesn't allow housing and utility services to function effectively. The main of them is providing high-quality housing and utility services to the population and system of their objective cost assessment. This problem is solved by means of reforming the housing and utility sphere with the possibility of attracting financial resources from private investors. Housing and Utility of the Russian Federation, the basis of which is the housing stock, has a very high specific weight in fixed assets of all the economy.Thus, Housing and Utility is a typical difficult organizational and economic system possessing characteristic features of openness, nonlinearity and dissipativity. In this re-gard, the reasonable approach to Housing and Utility development assumes the need to account for the principles of systemacity, focus and complexity, and also can be based on the existing in the theory and practice of management methodology by difficult organizational and economic systems.Now Housing and Utility development and financing investment programs of the municipal complex organizations is carried out according to the relevant Federal law, according to which the establishment system of limit indexes of change of tariffs and investment extra charges to tariffs for services of the organizations of a municipal complex. Also, innovative ways of energy efficiency increase and decrease in wear of funds is an attempt of the state to develop effective mechanisms of attracting private funds from investors.

  8. Categories children find easy and difficult to process in figural analogies

    Directory of Open Access Journals (Sweden)

    Claire E Stevenson

    2014-08-01

    Full Text Available Analogical reasoning, the ability to learn about novel phenomena by relating it to structurally similar knowledge, develops with great variability in children. Furthermore, the development of analogical reasoning coincides with greater working memory efficiency and increasing knowledge of the objects and rules present in analogy problems. In figural matrices, a classical form of analogical reasoning assessment, some categories, such as color, appear easier for children to encode and infer than others, such as orientation. Yet, few studies have structurally examined differences in the difficulty of rule-types across different age-groups. This cross-sectional study of figural analogical reasoning examined which underlying rules in figural analogies were easier or more difficult for children to correctly process. School children (N=1422, M=7.0 years, SD=21 months, range 4.5-12.5 years were assessed in analogical reasoning using classical figural matrices and memory measures. The transformations the children had to induce and apply concerned the categories: animal, color, orientation, position, quantity and size. The role of age and memory span on the children’s ability to correctly process each type of transformation was examined using explanatory item response theory models. The results showed that with increasing age and/or greater memory span all transformations were processed more accurately. The what transformations animal, color, quantity and size were easiest, whereas the where transformations orientation and position were most difficult. However, animal, orientation and position became relatively easier with age and increased memory efficiency. The implications are discussed in terms of the development of visual processing in object recognition versus position and motion encoding, the ventral (what and dorsal (where pathways respectively.

  9. Conformational origin of a difficult coupling in a human growth hormone releasing factor analog.

    Science.gov (United States)

    Deber, C M; Lutek, M K; Heimer, E P; Felix, A M

    1989-01-01

    During the solid-phase synthesis of the human growth hormone releasing factor (GRF) analog [Ala15, Leu27, Asn28] -GRF(1-32)-OH, incorporation of Boc-Gln16 was determined to be incomplete. While aggregation of growing resin-bound peptide chains with concomitant beta-sheet formation and "precipitation" has been proposed to account in general for such "difficult coupling," no feature of sequence in the Gln16 region of this GRF analog provided an immediate rationale for this result. We now report 500 MHz 1H NMR spectra of a series of resin-bound GRF segments surrounding the Gln16 position (19-32 through 14-32), swelled in dimethylsulfoxide-d6 solutions [GRF(14-32) = Leu14-Ala-Gln-Leu-Ser(Bzl)-Ala-Arg(Tos)-Lys(CIZ)-Leu- Leu-Gln-Asp(OcHex)-Ile-Leu-Asn-Arg(Tos)-Gln-Gln-Gly32-PAM resin]. While relatively sharp spectra are observed for GRF(19-32), components with resonances broadened by an order-of-magnitude appear in spectra of the 18-32 and 17-32 peptide-resin, and the entire spectrum of 16-32 is ill-resolved and highly broadened. Subsequent spectra sharpen again (15-32, 14-32). These combined synthesis/spectroscopic experimental results, in conjunction with predictive analyses using standard Chou-Fasman 2 degrees structure parameters, suggest that the completeness of the Gln16 coupling is hindered by formation of a specific, folded beta-sheet/beta-turn structure in GRF(16-32) (with the turn located at 18-21, "upstream" of the difficult coupling site), and accompanying aggregation of peptide chains. This analysis suggests that awareness of such potential beta-sheet/beta-turn sequences can guide analog choices, and/or facilitate pre-programming of synthesis steps in anticipation of problem couplings.

  10. Tectonique globale. Quelques difficultés Global Tectonics. a Few Problems

    Directory of Open Access Journals (Sweden)

    Vitart M. J.

    2006-11-01

    Full Text Available On constate que malgré la brillante démonstration apportée par les forages dans le fond des océans, les praticiens de la géologie observent une certaine réserve face aux concepts de la Tectonique globale. C'est que d'une part, certaines hypothèses de base sont difficiles à comprendre et que d'autre part, la théorie aide assez peu à la résolution des problèmes qui se présentent au géologue praticien. Nous prendrons comme exemple - la difficulté de l'interprétation des anomalies magnétiques des océans; - le problème des « structures reliques » en milieu océanique; - le problème du changement de plaque et de l'inversion du mouvement; - les bassins intraplaques transverses aux ouvertures. Despite the brilliant demonstration of drilling into ocean beds, geologists seems ta be maintaining a certain reserve when confronted with concepts of global tectonics. On one hand, some basic assumptions are difficult ta understand, and on the other the theory is of relatively little help in solving the problems faced by practicing geologists. A few examples of such problems are - the difficulty in interpreting magnetic anomalies in oceans; - the problem of « relic structures » in on oceanic environment; - the problem of plate changes and inversion of movements; - intraplate basins bridging openings.

  11. Goldilocks models of higher-dimensional inflation (including modulus stabilization)

    Science.gov (United States)

    Burgess, C. P.; Enns, Jared J. H.; Hayman, Peter; Patil, Subodh P.

    2016-08-01

    We explore the mechanics of inflation within simplified extra-dimensional models involving an inflaton interacting with the Einstein-Maxwell system in two extra dimensions. The models are Goldilocks-like inasmuch as they are just complicated enough to include a mechanism to stabilize the extra-dimensional size (or modulus), yet simple enough to solve explicitly the full extra-dimensional field equations using only simple tools. The solutions are not restricted to the effective 4D regime with H ll mKK (the latter referring to the characteristic mass splitting of the Kaluza-Klein excitations) because the full extra-dimensional Einstein equations are solved. This allows an exploration of inflationary physics in a controlled calculational regime away from the usual four-dimensional lamp-post. The inclusion of modulus stabilization is important because experience with string models teaches that this is usually what makes models fail: stabilization energies easily dominate the shallow potentials required by slow roll and so open up directions to evolve that are steeper than those of the putative inflationary direction. We explore (numerically and analytically) three representative kinds of inflationary scenarios within this simple setup. In one the radion is trapped in an inflaton-dependent local minimum whose non-zero energy drives inflation. Inflation ends as this energy relaxes to zero when the inflaton finds its own minimum. The other two involve power-law scaling solutions during inflation. One of these is a dynamical attractor whose features are relatively insensitive to initial conditions but whose slow-roll parameters cannot be arbitrarily small; the other is not an attractor but can roll much more slowly, until eventually transitioning to the attractor. The scaling solutions can satisfy H > mKK, but when they do standard 4D fluctuation calculations need not apply. When in a 4D regime the solutions predict η simeq 0 and so r simeq 0.11 when ns simeq 0.96 and so

  12. Supporting clinical management of the difficult-to-treat TB cases: the ERS-WHO TB Consilium.

    Science.gov (United States)

    D'Ambrosio, Lia; Tadolini, Marina; Centis, Rosella; Duarte, Raquel; Sotgiu, Giovanni; Aliberti, Stefano; Dara, Masoud; Migliori, Giovanni Battista

    2015-03-01

    Multi-drug and extensively drug-resistant tuberculosis (MDR/XDR-TB) are considered a serious threat for TB control and elimination. The outcome of these patients is still largely unsatisfactory as of today, with treatment success rates being consistently below 50% at global level. The World Health Organization (WHO) recommends that management of MDR-TB cases is supported by a specialized team, including complementary medical professionals able to cover several perspectives (clinical, both for adults and children; surgical; radiological; public health; psychological; nursing, among others). Implementation of such a body (known as Consilium in most of the former Soviet Union countries) is often a pre-requisite to apply for international TB control funding and concessionally priced medicines to treat M/XDR-TB cases. The primary objective of the ERS/WHO TB Consilium is to provide clinical consultation for drug-resistant TB and other difficult-to-treat TB cases, including co-infection with HIV and paediatric cases. Through technical guidance to clinicians managing complex TB cases, the main contribution and outcome of the initiative will be a public health response aimed at achieving correct treatment of affected patients and preventing further development of drug resistance. The Consilum's secondary objective is to ensure monitoring and evaluation of clinical practices on the ground (diagnosis, treatment and prevention).

  13. Sensitivity of palm print, modified mallampati score and 3-3-2 rule in prediction of difficult intubation

    Directory of Open Access Journals (Sweden)

    Ata Mahmoodpoor

    2013-01-01

    Full Text Available Background: This study evaluated the performance of modified Mallampati score, 3-3-2 rule and palm print in prediction of difficult intubation. Methods: In a prospective descriptive study, data from 500 patients scheduled for elective surgery under general anesthesia were collected. An anesthesiologist evaluated the airway using mentioned tests and another anesthesiologist evaluated difficult intubation. Laryngoscopic views were determined by Cormack and Lehane score. Grades 3 and 4 were defined as difficult intubation. Sensitivity, specificity, positive predictive value, negative predictive value and Youden index were determined for all tests. Results: Difficult intubation was reported in 8.9% of the patients. There was a significant correlation between body mass index and difficult intubation (P : 0.004; however, other demographic characteristics didn′t have a significant correlation with difficult intubation. Among three tests, palm print was of highest specificity (96.46% and modified Mallampati of highest sensitivity (98.40%. In a combination of the tests, the highest specificity, sensitivity and Youden index were observed when using all three tests together. Conclusions: Palm print has a high specificity for prediction of difficult intubation, but the best way for prediction of difficult intubation is using all three tests together.

  14. Modeling temperature and moisture fields in conditioned spaces using zonal approach, including sorption phenomena in buildings materials; Modelisation thermo-hydro-aeraulique des locaux climatises selon l'approche zonale (prise en compte des phenomenes de sorption d'humidite)

    Energy Technology Data Exchange (ETDEWEB)

    Cordeiro Mendoca, K.

    2004-05-15

    Building simulation models represent in our days an important tool for building conception and performance analysis. Although moisture interacts in many ways with the whole building affecting therefore its behavior, frequently these models neglects the interactions between them. In addition, in most of them, indoor air conditions are considered uniform, which is a non-realistic assumption in conditioned spaces. In this work, a model to predict temperature and moisture fields in conditioned spaces, using zonal approach, is proposed. This method is based in dividing spatially a room in a relative small number of zones, typically on the order of tens to hundreds, where the state variables of air are considered uniform, with the exception of pressure that varies hydrostatically. While not as fine-grained as CFD simulation, zonal models do give useful information about temperature and moisture distributions that is important in comfort analysis. The proposed model was structured in three groups of sub-models representing the three building domains: indoor air, envelope and HVAC system. The indoor air sub-model is related to the indoor air space, where airflow speed can be considered weak. The envelope sub-model is related to the radiation exchanges between envelope and its neighborhood, and to the simultaneous heat and mass transfers across the envelope material. This latest can be represented by four sub-models of different complexity levels, with two of them taking into account moisture adsorption and desorption by building materials. Concerning to the HVAC system model, it refers to the whole system that means equipment, control and specific airflow from equipment. All sub-models were coupled into a modular simulation environment, SPARK, well-adapted to compare different models. The applicability of the proposed model is shown by two examples. The first one shows the importance of considering moisture sorption phenomena in the prediction of indoor air conditions

  15. High fidelity medical simulation in the difficult environment of a helicopter: feasibility, self-efficacy and cost

    Directory of Open Access Journals (Sweden)

    Holland Carolyn

    2006-10-01

    Full Text Available Abstract Background This study assessed the feasibility, self-efficacy and cost of providing a high fidelity medical simulation experience in the difficult environment of an air ambulance helicopter. Methods Seven of 12 EM residents in their first postgraduate year participated in an EMS flight simulation as the flight physician. The simulation used the Laerdal SimMan™ to present a cardiac and a trauma case in an EMS helicopter while running at flight idle. Before and after the simulation, subjects completed visual analog scales and a semi-structured interview to measure their self-efficacy, i.e. comfort with their ability to treat patients in the helicopter, and recognition of obstacles to care in the helicopter environment. After all 12 residents had completed their first non-simulated flight as the flight physician; they were surveyed about self-assessed comfort and perceived value of the simulation. Continuous data were compared between pre- and post-simulation using a paired samples t-test, and between residents participating in the simulation and those who did not using an independent samples t-test. Categorical data were compared using Fisher's exact test. Cost data for the simulation experience were estimated by the investigators. Results The simulations functioned correctly 5 out of 7 times; suggesting some refinement is necessary. Cost data indicated a monetary cost of $440 and a time cost of 22 hours of skilled instructor time. The simulation and non-simulation groups were similar in their demographics and pre-hospital experiences. The simulation did not improve residents' self-assessed comfort prior to their first flight (p > 0.234, but did improve understanding of the obstacles to patient care in the helicopter (p = 0.029. Every resident undertaking the simulation agreed it was educational and it should be included in their training. Qualitative data suggested residents would benefit from high fidelity simulation in other

  16. Open Boundary Conditions for Dissipative MHD

    Energy Technology Data Exchange (ETDEWEB)

    Meier, E T

    2011-11-10

    In modeling magnetic confinement, astrophysics, and plasma propulsion, representing the entire physical domain is often difficult or impossible, and artificial, or 'open' boundaries are appropriate. A novel open boundary condition (BC) for dissipative MHD, called Lacuna-based open BC (LOBC), is presented. LOBC, based on the idea of lacuna-based truncation originally presented by V.S. Ryaben'kii and S.V. Tsynkov, provide truncation with low numerical noise and minimal reflections. For hyperbolic systems, characteristic-based BC (CBC) exist for separating the solution into outgoing and incoming parts. In the hyperbolic-parabolic dissipative MHD system, such separation is not possible, and CBC are numerically unstable. LOBC are applied in dissipative MHD test problems including a translating FRC, and coaxial-electrode plasma acceleration. Solution quality is compared to solutions using CBC and zero-normal derivative BC. LOBC are a promising new open BC option for dissipative MHD.

  17. Information on weather and sea conditions onboard polar cruise ships

    Directory of Open Access Journals (Sweden)

    BRÂNDUŞA CHIOTOROIU

    2016-11-01

    Full Text Available The arctic and Antarctic regions are difficult to navigate because of their severe maritime conditions. Weather forecast, forecast of the sea ice and icebergs dynamics are extremely important when planning ships routes and tourism activities including embarkation/disembarkation from boats or landing operations. New meteorological services have been created in the arctic region for broadcast purposes. The information provided by these services and received onboard ships is presented in this paper. A risk assessment should be considered for Polar Water operations such as maneuvering in ice covered waters, anchoring, shore landings etc.

  18. The Difficult Conceptualisation of Circular Migration between the EU and the MENA Region

    Directory of Open Access Journals (Sweden)

    Tamirace FAKHOURY

    2010-05-01

    Full Text Available This article examines the extent to which circular migration (CM can be framed first as a useful migration typology and second as an efficient migration strategy in the MENA region and between the latter and the EU. After discussing the difficult conceptualisation of the circular migration model, it alludes to the inherent discrepancies between the normative, empirical and prescriptive connotations of the concept, then it analyses different examples of circularity in the MENA region and between the latter and the EU. It concludes that since the very concept of circular migration (as proposed by the EU is still in its exploratory and genesis phases, it is advisable to refrain from conferring an overvalued significance on the CM approach and to consider it rather as a strategy inherent to a more global approach to labour migration in the EU-MENA context. On a more theoretical level, and beyond the specificities of the EU and MENA, this article would suggest caution in the normative use of circular migration. As much contention prevails over circular migration as a migration typology, it would be recommendable that CM be rather considered an option, a policy initiative suitable for some countries more than others, or a strategy to manage migration trends in transnational contexts.

  19. Evaluation of a new surgical light source for difficult visibility procedures.

    Science.gov (United States)

    Knulst, Arjan J; Santos, Ana Laura R; Goossens, Richard H M; Dankelman, Jenny

    2011-09-01

    A new lighting device for open surgery of difficult access wounds was designed: the Extender add-on. The performance of the Extender is evaluated and compared with the conventional solutions used in the operating room (OR) on illumination quality. A cylindrical setup was built to measure the distribution of light in a simulated pelvic wound. The light was provided by a head-mounted light, an OR light, and a pair of Extender prototypes. The results showed that the Extender prototypes provided 12.2 lumens inside the wound, whereas the head-mounted light gave 5.7 lumens. The Extenders provided smoothly angular distributed light from 0° to 180°, whereas the head-mounted light and OR light only provided light from 115° to 180°. The Extender prototypes had a promising performance in terms of light distribution. It is expected that a more accurately produced Extender will increase performance in terms of illumination quantity and illumination distribution smoothness even further.

  20. Cyanoacrylate spray as treatment in difficult-to-manage gastrointestinal bleeding

    Institute of Scientific and Technical Information of China (English)

    Liz; Toapanta-Yanchapaxi; Norberto; Chavez-Tapia; Félix; Téllez-ávila

    2014-01-01

    Gastrointestinal bleeding can be a life-treating event that is managed with standard endoscopic therapy in the majority of cases. However, up to 5%-10% of patients may have persistent bleeding that does not respond to conventional measures. Several endoscopic treatment techniques have been proposed as strategies to control such cases, such as epinephrine injection, hemoclips or argon plasma coagulation, but there are certain clinical scenarios where it is difficult to achieve hemostasis even though adequate use of the available resources is made. Reasons for these failures can be associated with the lesion features, such as extent or location. The use of long-standing techniques in nontraditional scenarios, such as with cyanoacrylate for gastric varices sclerosis, has been reported with favorable results. Although new products such as TC-325 or Ankaferd Blood Stopper hemosprays may be useful, their formulations are not available worldwide. Here we present two clinical cases with very different scenarios of gastrointestinal bleeding, where the use of cyanoac-rylate in spray had favorable results in uncommon indications. Cyanoacrylate used as a spray is a technique that can be used as an alternative method in emergent settings.

  1. Why do Family Physicians find it difficult to apply clinical guidelines?

    Directory of Open Access Journals (Sweden)

    Andrea Pizzini

    2007-06-01

    Full Text Available The aging of the population, in Italy as well as in all the countries of the European Union, and the increasing prevalence of chronic diseases pose challenges to the development and application of clinical guidelines. Guidelines have been developed to improve the quality of health care. Anyway, Family Physicians sometimes find many obstacles in integrating guidelines into medical practice. In the care of older individuals with several comorbid diseases, application of clinical guidelines is not only difficult, but may also lead to undesirable effects. In this article, the Author take a review, published in JAMA, as a starting point to discuss the role and the importance of guidelines in patients with comorbid disease in the Italian context. The review analyses the hypothetical case of a 79-year-old woman with chronic obstructive pulmonary disease, type 2 diabetes, osteoporosis, hypertension and osteoarthritis, and describes the situation of the aggregated recommendations from the most relevant guidelines. The conclusion is that, to improve the care of older patients with complex comorbidities, developing new measures and new guidelines is extremely necessary.

  2. Improving access in borderline therapy for difficult-to-engage patients: a clinical description.

    Science.gov (United States)

    Lingam, Ravi

    2013-02-01

    Debate about suitability or clinicians' low expectations has led to patients with personality disorders being labeled as difficult and being socially excluded from pathways of care. Traditional psychotherapeutic treatments in borderline personality disorder demand too much of these patients' fractured ego structures for meaningful (long-term) therapeutic engagement. However, these patients cause clinicians anxiety and are a burden in health care systems. This article describes the challenge for clinical care teams working in partnership arrangements-psychotherapy and psychiatry services-to provide a containing framework of care. Early access to a pragmatic psychoanalytically oriented group treatment in borderline personality disorder is aimed at offering these patients an opportunity to make transitions in borderline treatment and thus alter the trajectory of their (self-) destructive pathway. A clinical and theoretical case is made for clinicians and health strategists to re-engage in the process of making meaningful early contact with borderline vulnerability. The group-based treatment model in borderline disturbance described in this article has helped forge partnerships between psychotherapy and psychiatric teams in providing in-depth diagnostic and prognostic information early in the patients' journey.

  3. The Brain Mechanisms Underlying the Cognitive Benefits of Bilingualism may be Extraordinarily Difficult to Discover

    Directory of Open Access Journals (Sweden)

    Kenneth R. Paap

    2014-12-01

    Full Text Available The hypothesis that coordinating two or more languages leads to an enhancement in executive functioning has been intensely studied for the past decade with very mixed results. The purpose of this review and analysis is to consider why it has been (and will continue to be difficult to discover the brain mechanisms underlying any cognitive benefits to bilingualism. Six reasons are discussed: 1 the phenomenon may not actually exist; 2 the cognitive neuroscientists investigating bilingual advantages may have been studying the wrong component of executive functioning; 3 most experiments use risky small numbers of participants and are underpowered; 4 the neural differences between groups do not align with the behavioral differences; 5 neural differences sometimes suffer from valence ambiguity, that is, disagreements whether “more” implies better or worse functioning and 6 neural differences often suffer from kind ambiguity, that is, disagreements regarding what type of mental events the pattern of activation in a region-of-interest actually reflects.

  4. The psychometric properties of the difficult behavior self-efficacy scale.

    Science.gov (United States)

    Oh, Hyun-Kyoung; Kozub, Francis M

    2010-07-01

    The study was designed to estimate the psychometric properties of Hastings and Brown's (2002a) Difficult Behavior Self-efficacy Scale. Participants were two samples of physical educators teaching in Korea (n=229) and the United States (U.S.; n=139). An initial translation of the questionnaire to Korean and pilot study were conducted along with the larger study using a confirmatory factor analysis procedure. Internal consistency estimates (weighed Omega) for the five-item scale were 0.88 both the Korean and U.S. samples. The average variances extracted for the one factor were 0.59 for the total data set and 0.57 each for the Korean and U.S. samples. Confirmatory factor analysis supported a five-item, unidimensional model for self-efficacy for the total sample: Goodness of Fit Index (GFI)=0.97, Nonnormed Fit Index (NNFI)=0.95, Comparative Fit Index (CFI)=0.98, and Standardized Root Mean Square Residual (SRMR)=0.03. Only the Root Mean Square Error of Approximation (RMSEA=0.12) fell below criterion levels of acceptable fit, with similar fit indices occurring in separate analyses of the Korean and U.S. samples. Invariance testing across the two samples supported metric invariance (similarity of factor loadings) but not scalar invariance (U.S. means higher on all five items). The factor structure for the self-efficacy scale provides an initial estimate of validity and internal consistency for use with different teacher groups.

  5. Gold nanoparticles as scaffolds for poor water soluble and difficult to vehiculate antiparkinson codrugs

    Science.gov (United States)

    Di Crescenzo, A.; Cacciatore, I.; Petrini, M.; D'Alessandro, M.; Petragnani, N.; Del Boccio, P.; Di Profio, P.; Boncompagni, S.; Spoto, G.; Turkez, H.; Ballerini, P.; Di Stefano, A.; Fontana, A.

    2017-01-01

    We report the facile and non-covalent preparation of gold nanoparticles (AuNPs) stabilized by an antiparkinson codrug based on lipoic acid (LA). The obtained AuNPs appear stable in both dimethyl sulfoxide and fetal bovine serum and able to load an amount of codrug double the weight of gold. These NPs were demonstrated to be safe and biocompatible towards primary human blood cells and human neuroblastoma cells, one of the most widely used cellular models to study dopaminergic neural cells, therefore are ideal drug carriers for difficult to solubilize molecules. Very interestingly, the codrug-stabilized AuNPs were shown to reduce the accumulation of reactive oxygen species in SH-SY5Y cells treated with LD and did not change total oxidant status levels in cultured human blood cells, thus confirming the antioxidant role of LA although bound to AuNPs. The characterization of AuNPs in terms of loading and stability paves the way for their use in biomedical and pharmacological applications.

  6. Primary Hepatic Lymphoma Is Difficult to Discriminate from a Liver Abscess

    Directory of Open Access Journals (Sweden)

    Nobuhiro Takeuchi

    2014-01-01

    Full Text Available An 82-year-old woman presented with a high-grade fever of 40°C and was admitted to our institution for intensive examination and treatment. Noncontrast abdominal computed tomography (CT revealed low-density masses at segments 5 and 8, suggestive of a liver abscess. On further examination, a contrast-enhanced abdominal CT showed a 30×30 mm mass with an enhanced margin at segment 8 in the arterial phase; the contrast agents were washed out in the venous phase. In addition, a 63×52 mm mass with a density lower than that of liver parenchyma was observed at segment 8 in the portal phase. On the basis of these findings, either a liver abscess or hepatocellular carcinoma was suspected. To confirm the diagnosis, a fine needle biopsy was scheduled. Histopathological analysis of the biopsied specimens confirmed the diagnosis of diffuse large B-cell lymphoma. Chemotherapy was not indicated owing to the patient’s age and poor performance status; thus, best supportive care was planned. On day 22 after admission, the patient died of pneumonia. We experienced a case of PHL that was difficult to discriminate from a liver abscess. Imaging alone is insufficient to diagnose PHL; therefore, fine needle biopsy is recommended for a definitive diagnosis.

  7. A Difficult Journey: Reflections on Driving and Driving Cessation From a Team of Clinical Researchers.

    Science.gov (United States)

    Liddle, Jacki; Gustafsson, Louise; Mitchell, Geoffrey; Pachana, Nancy A

    2017-02-01

    Recognizing the clinical importance and safety and well-being implications for the population, a multidisciplinary team has been researching older drivers and driving cessation issues for more than 15 years. Using empirical approaches, the team has explored quality of life and participation outcomes related to driving and nondriving for older people and has developed interventions to improve outcomes after driving cessation. The team members represent occupational therapists, medical practitioners, and clinical and neuropsychologists. While building the evidence base for driving- and driving cessation-related clinical practice, the researchers have also had first-hand experiences of interruptions to their own or parents' driving; involvement of older family members in road crashes; and provision of support during family members' driving assessment and cessation. This has led to reflection on their understandings and re-evaluation and refocusing of their perspectives in driving cessation research. This work will share the narratives of the authors and note their developing perspectives and foci within research as well as their clinical practice. Personal reflections have indicated the far-reaching implications for older drivers and family members of involvement in road crashes: the potential for interruptions to driving as a time for support and future planning and the conflicting and difficult roles of family members within the driving cessation process. Overall the lived, personal experience of the authors has reinforced the complex nature of driving and changes to driving status for the driver and their support team and the need for further research and support.

  8. [Difficult Ventilation Requiring Emergency Endotracheal Intubation during Awake Craniotomy Managed by Laryngeal Mask Airway].

    Science.gov (United States)

    Matsuda, Asako; Mizota, Toshiyuki; Tanaka, Tomoharu; Segawa, Hajime; Fukuda, Kazuhiko

    2016-04-01

    We report a case of difficult ventilation requiring emergency endotracheal intubation during awake craniotomy managed by laryngeal mask airway (LMA). A 45-year-old woman was scheduled to receive awake craniotomy for brain tumor in the frontal lobe. After anesthetic induction, airway was secured using ProSeal LMA and patient was mechanically ventilated in pressure-control mode. Patient's head was fixed with head-pins at anteflex position, and the operation started. About one hour after the start of the operation, tidal volume suddenly decreased. We immediately started manual ventilation, but the airway resistance was extremely high and we could not adequately ventilate the patient. We administered muscle relaxant for suspected laryngospasm, but ventilatory status did not improve; so we decided to conduct emergency endotracheal intubation. We tried to intubate using Airwayscope or LMA-Fastrach, but they were not effective in our case. Finally trachea was intubated using transnasal fiberoptic bronchoscopy. We discuss airway management during awake craniotomy, focusing on emergency endotracheal intubation during surgery.

  9. Reconciliation as narrative: Witnessing against a too easy and a too difficult reconciliation

    Directory of Open Access Journals (Sweden)

    N Botha

    2008-06-01

    Full Text Available Reconciliation as narrative: Witnessing against a too easy and a too difficult reconciliationAfter the dawn of democracy in South Africa in 1994 diverse paradigms on reconciliation have appeared on the scene. In this article these paradigms are not discredited so much for being downright unproductive, but they are found to be either too prescriptive as is the case with the TRC or too limited as is the case with the three paradigms of which mere sketches are offered.The main thrust of the article is a proposal on developing reconciliation as narrative in contradistinction to a dogmatic, technical approach to reconciliation as something to be organised, to be prescribed and engineered. The basic thesis of the article is that narrative can potentially create vast space for story-telling and for many more voices to be heard on the issue of reconciliation. The notion of narrative is advanced as a serious academic category and not an intellectual fad. A further issue is illustrating how issues like remembering, forgiveness and justice need to be brought into discourse with reconciliation.

  10. A series of 22 patients with adult-onset Still's disease presenting with fever of unknown origin. A difficult diagnosis?

    Science.gov (United States)

    Baxevanos, Gerasimos; Tzimas, Thomas; Pappas, Georgios; Akritidis, Nikolaos

    2012-01-01

    Adult-onset Still's disease (AOSD) remains a perplexing, difficult to diagnose clinical entity, with clinical characteristics that are often broad and encountered in numerous other clinical entities. This vague clinical presentation is depicted in the commonly used diagnostic criteria, as the ones by Yamaguchi and Fautrel. The authors sought to investigate how diagnostic criteria apply in a series of 22 new cases of AOSD patients presenting with fever of unknown origin (FUO) and diagnosed at the Internal Medicine Department of Hatzikosta General Hospital of Ioannina, Greece. The aims of the study were: (1) to study the incidence of AOSD and (2) to retrospectively apply different classifications to the data of these patients in search of a more efficient way of diagnosing these patients in the future. The annual incidence of AOSD was estimated at two new cases per 10(5). The clinical manifestations of the patients are discussed, with an emphasis on specific manifestations being considered as criteria by Yamaguchi and Fautrel classifications. Four patients exhibited markedly increased serum D: -dimers, a finding of which the potential pathophysiologic implications are discussed. Serum ferritin levels have additive values, both for diagnostic and cost-reduction purposes in cases presenting as FUO; serum ferritin values are not included in any diagnostic set of criteria at present. The finding of high levels of D-dimers in AOSD needs further studies.

  11. Dexmedetomidine for awake intubation and an opioid-free general anesthesia in a superobese patient with suspected difficult intubation

    Directory of Open Access Journals (Sweden)

    Gaszynski T

    2014-07-01

    Full Text Available Tomasz Gaszynski,1 Ewelina Gaszynska,2 Tomasz Szewczyk31Department of Anesthesiology and Intensive Therapy, 2Department of Hygiene and Health Promotion, 3Department of Gastroenterology, Oncology, and General Surgery, Barlicki University Hospital, Medical University of Lodz, PolandAbstract: Super-obese patients (body mass index [BMI] >50 kg/m2 are at a particularly high risk of anesthesia-related complications during postoperative period, eg, critical respiratory events including respiratory arrest, and over-sedation leading to problems with maintaining airway open, hypoxia and hypercapnia. In this paper authors present a case of a 39-year-old super-obese (BMI 62.3 kg/m2 female patient who was admitted for surgical treatment of obesity. Preanesthesia evaluation revealed hypertension and type 2 diabetes mellitus (DM as comorbidities as well as potential for a difficult intubation– neck circumference of 46 cm, reduced neck mobility and DM type 2. Patient was intubated using "awake intubation" method using topical anesthesia and dexmedetomidine infusion. General anesthesia was maintained with sevoflurane and dexmedetomidine infusion instead of opioid administration in "opioid-free anesthesia method".Keywords: morbid obesity, non-opioid anesthesia, dexmedetomidine

  12. Fluoroscopy-guided lumbar drainage of cerebrospinal fluid for patients in whom a blind beside approach is difficult

    Energy Technology Data Exchange (ETDEWEB)

    Chee, Choong Guen; Lee, Guen Young; Lee, Joon Woo; Lee, Eu Gene; Kang, Heung Sik [Dept. of Radiology, Seoul National University Bundang Hospital, Seongnam (Korea, Republic of)

    2015-08-15

    To evaluate the rates of technical success, clinical success, and complications of fluoroscopy-guided lumbar cerebrospinal fluid drainage. This retrospective study was approved by the Institutional Review Board of our hospital, and informed consent was waived. Ninety-six procedures on 60 consecutive patients performed July 2008 to December 2013 were evaluated. The patients were referred for the fluoroscopy-guided procedure due to failed attempts at a bedside approach, a history of lumbar surgery, difficulty cooperating, or obesity. Fluoroscopy-guided lumbar drainage procedures were performed in the lateral decubitus position with a midline puncture of L3/4 in the interspinous space. The catheter tip was positioned at the T12/L1 level, and the catheter was visualized on contrast agent-aided fluoroscopy. A standard angiography system with a rotatable C-arm was used. The definitions of technical success, clinical success, and complications were defined prior to the study. The technical and clinical success rates were 99.0% (95/96) and 89.6% (86/96), respectively. The mean hospital stay for an external lumbar drain was 4.84 days. Nine cases of minor complications and eight major complications were observed, including seven cases of meningitis, and one retained catheter requiring surgical removal. Fluoroscopy-guided external lumbar drainage is a technically reliable procedure in difficult patients with failed attempts at a bedside procedure, history of lumbar surgery, difficulties in cooperation, or obesity.

  13. Musculoskeletal ultrasound including definitions for ultrasonographic pathology

    DEFF Research Database (Denmark)

    Wakefield, RJ; Balint, PV; Szkudlarek, Marcin

    2005-01-01

    in a short period of time. However, there are scarce data regarding its validity, reproducibility, and responsiveness to change, making interpretation and comparison of studies difficult. In particular, there are limited data describing standardized scanning methodology and standardized definitions of US...... pathologies. This article presents the first report from the OMERACT ultrasound special interest group, which has compared US against the criteria of the OMERACT filter. Also proposed for the first time are consensus US definitions for common pathological lesions seen in patients with inflammatory arthritis....

  14. Why is it difficult to embed employee participation in the factory practice?

    DEFF Research Database (Denmark)

    Buhl, Henrik

    1997-01-01

    The purpose of my study is to evaluate projects with employee participation and to analyze the conditions for employee participation and the way in which it can be rooted in a factory. My hypothesis is that communicative actions have to be developed and supported as a precondition for the establi......The purpose of my study is to evaluate projects with employee participation and to analyze the conditions for employee participation and the way in which it can be rooted in a factory. My hypothesis is that communicative actions have to be developed and supported as a precondition...

  15. A Study on the Operation Strategy for Combined Accident including TLOFW accident

    Energy Technology Data Exchange (ETDEWEB)

    Kim, Bo Gyung; Kang, Gook Young [KAIST, Daejeon (Korea, Republic of); Yoon, Ho Joon [Khalifa University, Abu Dhabi (United Arab Emirates)

    2014-10-15

    It is difficult for operators to recognize the necessity of a feed-and-bleed (F-B) operation when the loss of coolant accident and failure of secondary side occur. An F-B operation directly cools down the reactor coolant system (RCS) using the primary cooling system when residual heat removal by the secondary cooling system is not available. The plant is not always necessary the F-B operation when the secondary side is failed. It is not necessary to initiate an F-B operation in the case of a medium or large break because these cases correspond to low RCS pressure sequences when the secondary side is failed. If the break size is too small to sufficiently decrease the RCS pressure, the F-B operation is necessary. Therefore, in the case of a combined accident including a secondary cooling system failure, the provision of clear information will play a critical role in the operators' decision to initiate an F-B operation. This study focuses on the how we establish the operation strategy for combined accident including the failure of secondary side in consideration of plant and operating conditions. Previous studies have usually focused on accidents involving a TLOFW accident. The plant conditions to make the operators confused seriously are usually the combined accident because the ORP only focuses on a single accident and FRP is less familiar with operators. The relationship between CET and PCT under various plant conditions is important to decide the limitation of initiating the F-B operation to prevent core damage.

  16. Extending Newtonian Dynamics to Include Stochastic Processes

    Science.gov (United States)

    Zak, Michail

    2009-01-01

    A paper presents further results of continuing research reported in several previous NASA Tech Briefs articles, the two most recent being Stochastic Representations of Chaos Using Terminal Attractors (NPO-41519), [Vol. 30, No. 5 (May 2006), page 57] and Physical Principle for Generation of Randomness (NPO-43822) [Vol. 33, No. 5 (May 2009), page 56]. This research focuses upon a mathematical formalism for describing post-instability motions of a dynamical system characterized by exponential divergences of trajectories leading to chaos (including turbulence as a form of chaos). The formalism involves fictitious control forces that couple the equations of motion of the system with a Liouville equation that describes the evolution of the probability density of errors in initial conditions. These stabilizing forces create a powerful terminal attractor in probability space that corresponds to occurrence of a target trajectory with probability one. The effect in configuration space (ordinary three-dimensional space as commonly perceived) is to suppress exponential divergences of neighboring trajectories without affecting the target trajectory. As a result, the post-instability motion is represented by a set of functions describing the evolution of such statistical quantities as expectations and higher moments, and this representation is stable.

  17. Study of issues in difficult-to-weld thick materials by hybrid laser arc welding

    Science.gov (United States)

    Mazar Atabaki, Mehdi

    There is a high interest for the high strength-to-weight ratio with good ductility for the welds of advanced alloys. The concern about the welding of thick materials (Advanced high strength steels (AHSS) and 5xxx and 6xxx series of aluminum alloys) has stimulated the development of manufacturing processes to overcome the associated issues. The need to weld the dissimilar materials (AHSS and aluminum alloys) is also required for some specific applications in different industries. Hence, the requirement in the development of a state-of-the-art welding procedure can be helpful to fulfill the constraints. Among the welding methods hybrid laser/arc welding (HLAW) has shown to be an effective method to join thick and difficult-to-weld materials. This process benefits from both advantages of the gas metal arc welding (GMAW) and laser welding processes. The interaction of the arc and laser can help to have enough penetration of weld in thick plates. However, as the welding of dissimilar aluminum alloys and steels is very difficult because of the formation of brittle intermetallics the present work proposed a procedure to effectively join the alloys. The reports showed that the explosively welded aluminum alloys to steels have the highest toughness, and that could be used as an "insert" (TRICLAD) for welding the thick plates of AHSS to aluminum alloys. Therefore, the HLAW of the TRICLAD-Flange side (Aluminum alloy (AA 5456)) to the Web side (Aluminum alloys (AA 6061 and AA 5456)) and the TRICLAD-Flange side (ASTM A516) to the Web side (AHSS) was studied in the present work. However, there are many issues related to HLAW of the dissimilar steels as well as dissimilar aluminum alloys that have to be resolved in order to obtain sound welds. To address the challenges, the most recent welding methods for joining aluminum alloys to steels were studied and the microstructural development, mechanical properties, and on-line monitoring of the welding processes were discussed as well

  18. Can HRCT be used as a marker of airway remodelling in children with difficult asthma?

    Directory of Open Access Journals (Sweden)

    Jeffery PK

    2006-03-01

    Full Text Available Abstract Background Whole airway wall thickening on high resolution computed tomography (HRCT is reported to parallel thickening of the bronchial epithelial reticular basement membrane (RBM in adult asthmatics. A similar relationship in children with difficult asthma (DA, in whom RBM thickening is a known feature, may allow the use of HRCT as a non-invasive marker of airway remodelling. We evaluated this relationship in children with DA. Methods 27 children (median age 10.5 [range 4.1–16.7] years with DA, underwent endobronchial biopsy from the right lower lobe and HRCT less than 4 months apart. HRCTs were assessed for bronchial wall thickening (BWT of the right lower lobe using semi-quantitative and quantitative scoring techniques. The semi-quantitative score (grade 0–4 was an overall assessment of BWT of all clearly identifiable airways in HRCT scans. The quantitative score (BWT %; defined as [airway outer diameter – airway lumen diameter]/airway outer diameter ×100 was the average score of all airways visible and calculated using electronic endpoint callipers. RBM thickness in endobronchial biopsies was measured using image analysis. 23/27 subjects performed spirometry and the relationships between RBM thickness and BWT with airflow obstruction evaluated. Results Median RBM thickness in endobronchial biopsies was 6.7(range 4.6 – 10.0 μm. Median qualitative score for BWT of the right lower lobe was 1(range 0 – 1.5 and quantitative score was 54.3 (range 48.2 – 65.6%. There was no relationship between RBM thickness and BWT in the right lower lobe using either scoring technique. No relationship was found between FEV1 and BWT or RBM thickness. Conclusion Although a relationship between RBM thickness and BWT on HRCT has been found in adults with asthma, this relationship does not appear to hold true in children with DA.

  19. Still a difficult business? Negotiating alcohol-related problems in general practice consultations.

    Science.gov (United States)

    Rapley, Tim; May, Carl; Frances Kaner, Eileen

    2006-11-01

    This paper describes general practitioners' (GPs) experiences of detecting and managing alcohol and alcohol-related problems in consultations. We undertook qualitative research in two phases in the North-East of England. Initially, qualitative interviews with 29 GPs explored their everyday work with patients with alcohol-related issues. We then undertook group interviews--two with GPs and one with a primary care team--where they discussed and challenged findings of the interviews. The GPs reported routinely discussing alcohol with patients with a range of alcohol-related problems. GPs believed that this work is important, but felt that until patients were willing to accept that their alcohol consumption was problematic they could achieve very little. They tentatively introduced alcohol as a potential problem, re-introduced the topic periodically, and then waited until the patient decided to change their behaviour. They were aware that they could identify and manage more patients. A lack of time and having to work with the multiple problems that patients brought to consultations were the main factors that stopped GPs managing more risky drinkers. Centrally, we compared the results of our study with [Thom, B., & Tellez, C. (1986). A difficult business-Detecting and managing alcohol-problems in general-practice. British Journal of Addiction, 81, 405-418] seminal study that was undertaken 20 years ago. We show how the intellectual, moral, emotional and practical difficulties that GPs currently face are quite similar to those faced by GPs from 20 years ago. As the definition of what could constitute abnormal alcohol consumption has expanded, so the range of consultations that they may have to negotiate these difficulties in has also expanded.

  20. Audiometry for the Retarded: With Implications for the Difficult-to-Test.

    Science.gov (United States)

    Fulton, Robert T., Ed.; And Others

    Directed to professionals with a basic knowledge of audiological principles, the text presents a review of audiological assessment procedures and their applicability to the retarded. Pure-tone, speech, and Bekesy audiometry are described. Also discussed are differential diagnosis of auditory impairments, conditioning and audiological assessment,…

  1. Forming Competing Fear Learning and Extinction Memories in Adolescence Makes Fear Difficult to Inhibit

    Science.gov (United States)

    Baker, Kathryn D.; Richardson, Rick

    2015-01-01

    Fear inhibition is markedly impaired in adolescent rodents and humans. The present experiments investigated whether this impairment is critically determined by the animal's age at the time of fear learning or their age at fear extinction. Male rats (n = 170) were tested for extinction retention after conditioning and extinction at different ages.…

  2. Tracheal intubation with a flexible fibreoptic scope or the McGrath videolaryngoscope in simulated difficult airway scenarios

    DEFF Research Database (Denmark)

    Jepsen, Cecilie H; Gätke, Mona R; Thøgersen, Bente;

    2014-01-01

    BACKGROUND: Flexible fibreoptic endoscopic (FFE) intubation is considered the 'gold-standard' when difficult airway management is anticipated. Several videolaryngoscopes have been developed to facilitate intubation by laryngoscopy. OBJECTIVE: The aim of the study was to compare the performance of...

  3. Conditional Punishment

    OpenAIRE

    Kamei, Kenju

    2014-01-01

    We elicit human conditional punishment types by conducting experiments. We find that their punishment decisions to an individual are on average significantly positively proportional to other members’ punishment decisions to that individual.

  4. Betel quid, chewing habits and difficult intubation: A case report and critical appraisal of evidence for practice

    OpenAIRE

    Narendra, P. L.; Harihar V Hegde; Vijaykumar, T. K.; Nallamilli, Samson

    2015-01-01

    Betel quid is used by 10–20% of world of population. Oral submucus fibrosis (OSF) is a chronic premalignant disease common in South Asian countries where betel quid is chewed. It is characterized by juxtaepithelial fibrosis of oral cavity and limited mouth opening, which can cause difficult intubation. A recent study in Taiwan has revealed long-term betel nut chewing is not predictor of difficult intubation. We describe two cases of OSF and critically analyze this study and its implications f...

  5. A lack of response of the financial behaviors of biodiversity conservation nonprofits to changing economic conditions.

    Science.gov (United States)

    Larson, Eric R; Boyer, Alison G; Armsworth, Paul R

    2014-12-01

    The effectiveness of conservation organizations is determined in part by how they adapt to changing conditions. Over the previous decade, economic conditions in the United States (US) showed marked variation including a period of rapid growth followed by a major recession. We examine how biodiversity conservation nonprofits in the US responded to these changes through their financial behaviors, focusing on a sample of 90 biodiversity conservation nonprofits and the largest individual organization (The Nature Conservancy; TNC). For the 90 sampled organizations, an analysis of financial ratios derived from tax return data revealed little response to economic conditions. Similarly, more detailed examination of conservation expenditures and land acquisition practices of TNC revealed only one significant relationship with economic conditions: TNC accepted a greater proportion of conservation easements as donated in more difficult economic conditions. Our results suggest that the financial behaviors of US biodiversity conservation nonprofits are unresponsive to economic conditions.

  6. Difficult Decisions: Animal Rights--Do We Have the Right to Do Research on Animals?

    Science.gov (United States)

    Parakh, Jal S.; Slesnick, Irwin L.

    1989-01-01

    Discusses who has the right to determine the use of animals in scientific research which includes medical experimentation and the toxicity testing of compounds, ranging from pesticides to cosmetics. Provides a list of questions for consideration and discussion. (RT)

  7. Heuristic Optimization Applied to an Intrinsically Difficult Problem: Birds Formation Flight

    DEFF Research Database (Denmark)

    Filippone, Antonino

    1996-01-01

    The birds formation flight is studied by means oftheoretical aerodynamics, heuristic methods anddistributed systems. A simplified aerodynamic analog is presented, and calculations of drag savings and flight range are shown for sometypical cases, including the line abreast flightwith various...

  8. Extranasal symptoms of allergic rhinitis are difficult to treat and affect quality of life

    Directory of Open Access Journals (Sweden)

    Veeravich Jaruvongvanich

    2016-04-01

    Conclusions: Extranasal symptom scores correlated well with physical health and mental health in allergic rhinitis patients. Assessment of extranasal symptoms should be included to evaluate disease severity and assess therapeutic outcomes. Clinical trial NCT02000648, http://www.clinicaltrials.gov.

  9. Optimal for difficult roofs. East-west orientation; Optimal fuer schwierige Daecher. Ost-West-Ausrichtung

    Energy Technology Data Exchange (ETDEWEB)

    Bouattour, Mohamed Ali [Solar Frontier Europe GmbH, Muenchen (Germany)

    2013-10-01

    With the help of CIS solar modules the unfavorable east-west roofs can be also use efficiently and profitably, since the good weak-light performance almost compensates the weak light components characterized irradiation conditions. [German] Mit Hilfe der CIS-Solarmodule lassen sich auch die unguenstige Ost-West-Daecher effizient und profitabel nutzen, da das gute Schwachlichtverhalten die hier von schwachen Lichtanteilen gepraegten Einstrahlungsverhaeltnisse nahezu kompensiert.

  10. Forming competing fear learning and extinction memories in adolescence makes fear difficult to inhibit

    OpenAIRE

    Baker, Kathryn D.; Richardson, Rick

    2015-01-01

    Fear inhibition is markedly impaired in adolescent rodents and humans. The present experiments investigated whether this impairment is critically determined by the animal's age at the time of fear learning or their age at fear extinction. Male rats (n = 170) were tested for extinction retention after conditioning and extinction at different ages. We examined neural correlates of impaired extinction retention by detection of phosphorylated mitogen-activated protein kinase immunoreactivity (pMA...

  11. The Soviet doctor and the treatment of drug addiction: "A difficult and most ungracious task"

    Directory of Open Access Journals (Sweden)

    Latypov Alisher B

    2011-12-01

    doctor and the treatment of drug addiction: "A difficult and most ungracious task". A Russian translation of an abstract of this article. Click here for file

  12. The Reality of Myoelectric Prostheses: Understanding What Makes These Devices Difficult for Some Users to Control.

    Science.gov (United States)

    Chadwell, Alix; Kenney, Laurence; Thies, Sibylle; Galpin, Adam; Head, John

    2016-01-01

    Users of myoelectric prostheses can often find them difficult to control. This can lead to passive-use of the device or total rejection, which can have detrimental effects on the contralateral limb due to overuse. Current clinically available prostheses are "open loop" systems, and although considerable effort has been focused on developing biofeedback to "close the loop," there is evidence from laboratory-based studies that other factors, notably improving predictability of response, may be as, if not more, important. Interestingly, despite a large volume of research aimed at improving myoelectric prostheses, it is not currently known which aspect of clinically available systems has the greatest impact on overall functionality and everyday usage. A protocol has, therefore, been designed to assess electromyographic (EMG) skill of the user and predictability of the prosthesis response as significant parts of the control chain, and to relate these to functionality and everyday usage. Here, we present the protocol and results from early pilot work. A set of experiments has been developed. First, to characterize user skill in generating the required level of EMG signal, as well as the speed with which users are able to make the decision to activate the appropriate muscles. Second, to measure unpredictability introduced at the skin-electrode interface, in order to understand the effects of the socket-mounted electrode fit under different loads on the variability of time taken for the prosthetic hand to respond. To evaluate prosthesis user functionality, four different outcome measures are assessed. Using a simple upper limb functional task prosthesis users are assessed for (1) success of task completion, (2) task duration, (3) quality of movement, and (4) gaze behavior. To evaluate everyday usage away from the clinic, the symmetricity of their real-world arm use is assessed using activity monitoring. These methods will later be used to assess a prosthesis user cohort to

  13. The reality of myoelectric prostheses: Understanding what makes these devices difficult for some users to control

    Directory of Open Access Journals (Sweden)

    Alix Chadwell

    2016-08-01

    Full Text Available Users of myoelectric prostheses can often find them difficult to control. This can lead to passive-use of the device or total rejection, which can have detrimental effects on the contralateral limb due to overuse.Current clinically available prostheses are ‘open loop’ systems, and although considerable effort has been focused on developing biofeedback to close the loop, there is evidence from laboratory-based studies that other factors, notably improving predictability of response, may be as, if not more, important. Interestingly, despite a large volume of research aimed at improving myoelectric prostheses, it is not currently known which aspect of clinically available systems has the greatest impact on overall functionality and everyday usage. A protocol has therefore been designed to assess EMG skill of the user and predictability of the prosthesis response as significant parts of the control chain, and to relate these to functionality and everyday usage. Here we present the protocol and results from early pilot work.A set of experiments has been developed. Firstly to characterize user skill in generating the required level of EMG signal, as well as the speed with which users are able to make the decision to activate the appropriate muscles. Secondly, to measure unpredictability introduced at the skin-electrode interface, in order to understand the effects of the socket mounted electrode fit under different loads on the variability of time taken for the prosthetic hand to respond.To evaluate prosthesis user functionality, four different outcome measures are assessed. Using a simple upper limb functional task prosthesis users are assessed for (1 success of task completion, (2 task duration, (3 quality of movement, and (4 gaze behavior. To evaluate everyday usage away from the clinic, the symmetricity of their real-world arm use is assessed using activity monitoring.These methods will later be used to assess a prosthesis user cohort, to

  14. The Reality of Myoelectric Prostheses: Understanding What Makes These Devices Difficult for Some Users to Control

    Science.gov (United States)

    Chadwell, Alix; Kenney, Laurence; Thies, Sibylle; Galpin, Adam; Head, John

    2016-01-01

    Users of myoelectric prostheses can often find them difficult to control. This can lead to passive-use of the device or total rejection, which can have detrimental effects on the contralateral limb due to overuse. Current clinically available prostheses are “open loop” systems, and although considerable effort has been focused on developing biofeedback to “close the loop,” there is evidence from laboratory-based studies that other factors, notably improving predictability of response, may be as, if not more, important. Interestingly, despite a large volume of research aimed at improving myoelectric prostheses, it is not currently known which aspect of clinically available systems has the greatest impact on overall functionality and everyday usage. A protocol has, therefore, been designed to assess electromyographic (EMG) skill of the user and predictability of the prosthesis response as significant parts of the control chain, and to relate these to functionality and everyday usage. Here, we present the protocol and results from early pilot work. A set of experiments has been developed. First, to characterize user skill in generating the required level of EMG signal, as well as the speed with which users are able to make the decision to activate the appropriate muscles. Second, to measure unpredictability introduced at the skin–electrode interface, in order to understand the effects of the socket-mounted electrode fit under different loads on the variability of time taken for the prosthetic hand to respond. To evaluate prosthesis user functionality, four different outcome measures are assessed. Using a simple upper limb functional task prosthesis users are assessed for (1) success of task completion, (2) task duration, (3) quality of movement, and (4) gaze behavior. To evaluate everyday usage away from the clinic, the symmetricity of their real-world arm use is assessed using activity monitoring. These methods will later be used to assess a prosthesis user

  15. Thermal swing reactor including a multi-flight auger

    Energy Technology Data Exchange (ETDEWEB)

    Ermanoski, Ivan

    2017-03-07

    A thermal swing reactor including a multi-flight auger and methods for solar thermochemical reactions are disclosed. The reactor includes a multi-flight auger having different helix portions having different pitch. Embodiments of reactors include at least two distinct reactor portions between which there is at least a pressure differential. In embodiments, reactive particles are exchanged between portions during a reaction cycle to thermally reduce the particles at first conditions and oxidize the particles at second conditions to produce chemical work from heat.

  16. [An example for a practice-oriented curriculum in social medicine under conditions of the new medical licensing regulations. Experiences with practiced-oriented teaching and possibilities for including practical issues in the teaching syllabus of medicine after the introduction of new medical licensing regulations].

    Science.gov (United States)

    Erler, A; Fuchs, J

    2005-05-01

    Experience with teaching medical students the subject of Social Medicine shows that their interest can be greatly improved by including practical issues such as interviewing chronically ill patients at home, or visiting patient counselling services in the community. With the introduction of the new licensing regulations for physicians, there will be only one final examination and the medical faculties will now have to conduct the examinations themselves. In order to create legal confidence in the results, sufficient homogeneity of the teaching syllabus in Vocational and Social Medicine courses as well as in the new Health Economics courses must be assured for all students. The merger of the two medical faculties of the Free University and the Humboldt University in Berlin have increased student numbers to 400 per semester, so that 20 groups will have to be taught simultaneously. This situation makes excursions to patients or to community facilities nearly impossible. Potential alternatives to allow inclusion of practical issues in the course, even under the new circumstances, are the use of problem-based learning techniques (PBL) such as the creation of theoretical cases dealing with special problems of Social Medicine or the use of standardised patients.

  17. Modelling classroom conditions with different boundary conditions

    DEFF Research Database (Denmark)

    Marbjerg, Gerd Høy; Jeong, Cheol-Ho; Brunskog, Jonas;

    2014-01-01

    both specular and diffuse reflections with complex-valued acoustical descriptions of the surfaces. In this paper the PARISM model is used to simulate a rectangular room with most of the absorption located in the ceiling. This room configuration is typical for classroom conditions. The simulations......A model that combines image source modelling and acoustical radiosity with complex boundary condition, thus including phase shifts on reflection has been developed. The model is called PARISM (Phased Acoustical Radiosity and Image Source Model). It has been developed in order to be able to model...... are done using different boundary conditions in order to investigate the influence of phase shifts in reflections, the angle dependence of the reflection coefficient and the scattering coefficient. The focus of the simulations is to investigate the influence of the boundary condition on room acoustic...

  18. Assessment of difficult laryngoscopy by electronically measured maxillo-pharyngeal angle on lateral cervical radiograph: A prospective study

    Directory of Open Access Journals (Sweden)

    Gupta Kumkum

    2010-01-01

    Full Text Available Background: Difficult airway continued to be a major cause of anesthesia-related morbidity and mortality. Successful airway management depends on direct laryngoscopy and tracheal intubation. Difficult laryngoscopy is a resultant of incomplete structural arrangements during the process of head positioning. Through clinical history,examination of the patients along with craniofacial indices alerts the anesthetist for difficult laryngoscopy. But it does not predict all causes of difficult laryngoscopy during pre-anesthetic evaluation. The maxillo-pharyngeal angle, an upper airway anatomical balance, was proposed for better understanding the pathophysiology of difficult laryngoscopy. In our study we have assess difficult laryngoscopy by electronically measuring maxillo-pharyngeal angles on a lateral cervical radiograph. This angle is normally greater than 100 o . Less than 90 o angle suggests either impossible or difficult direct laryngoscopy when all known craniofacial indices were within the normal range. Cervical radiographic assessment is a simple, economical, and non-invasive predictive method for difficult laryngoscopy. It should be used routinely along with other indices as pre-anesthetic airway assessment criteria to predict the difficult laryngoscopy. Context: Difficulties with airway management continue to be a major cause of anesthesia-related morbidity, mortality, and litigation. Pre-operative assessment of difficult laryngoscopy by the simple and non-invasive radiological method can help to prevent them. Aims: To assess the difficult laryngoscopy pre operatively by a simple and non invasive radiological method by electronically measuring maxillo-pharyngeal angle on a lateral cervical radiograph and it′s correlation with Cormack and Lehane grading. Settings and Design: This is a controlled, nonrandomized, prospective, cohort observation study. Patients and Methods: The 157 adult consented patients of ASA grade I to III of either sex

  19. Natural selection and the conditions for existence: representational vs. conditional teleology in biological explanation.

    Science.gov (United States)

    Reiss, John O

    2005-01-01

    Human intentional action, including the design and use of artifacts, involves the prior mental representation of the goal (end) and the means to achieve that goal. This representation is part of the efficient cause of the action, and thus can be used to explain both the action and the achievement of the end. This is intentional teleological explanation. More generally, teleological explanation that depends on the real existence of a representation of the goal (and the means to achieve it) can be called representational teleological explanation. Such explanations in biology can involve both external representations (e.g., ideas in the mind of God) and internal representations (souls, vital powers, entelechies, developmental programs, etc.). However, another type of explanation of intentional action (or any other process) is possible. Given that an action achieving a result occurs, the action can be explained as fulfilling the necessary conditions (means) for that result (end), and, reciprocally, the result explained by the occurrence of those necessary conditions. This is conditional teleological explanation. For organisms, natural selection is often understood metaphorically as the designer, intentionally constructing them for certain ends. Unfortunately, this metaphor is often taken rather too literally, because it has been difficult to conceive of another way to relate natural selection to the process of evolution. I argue that combining a conditional teleological explanation of organisms and of evolution provides such an alternative. This conditional teleology can be grounded in existence or survival. Given that an organism exists, we can explain its existence by the occurrence of the necessary conditions for that existence. This principle of the 'conditions for existence' was introduced by Georges Cuvier in 1800, and provides a valid, conditional teleological method for explaining organismal structure and behavior. From an evolutionary perspective, the

  20. What works? Strategies to increase reproductive, maternal and child health in difficult to access mountainous locations: a systematic literature review.

    Directory of Open Access Journals (Sweden)

    Abbey Byrne

    Full Text Available BACKGROUND: Geography poses serious challenges to delivery of health services and is a well documented marker of inequity. Maternal, newborn and child health (MNCH outcomes are poorer in mountainous regions of low and lower-middle income countries due to geographical inaccessibility combined with other barriers: poorer quality services, persistent cultural and traditional practices and lower socioeconomic and educational status. Reaching universal coverage goals will require attention for remote mountain settings. This study aims to identify strategies to address barriers to reproductive MNCH (RMNCH service utilisation in difficult-to-reach mountainous regions in low and lower-middle income settings worldwide. METHODS: A systematic literature review drawing from MEDLINE, Web of Science, Scopus, Google Scholar, and Eldis. Inclusion was based on; testing an intervention for utilisation of RMNCH services; remote mountain settings of low- and lower-middle income countries; selected study designs. Studies were assessed for quality and analysed to present a narrative review of the key themes. FINDINGS: From 4,130 articles 34 studies were included, from Afghanistan, Bolivia, Ethiopia, Guatemala, Indonesia, Kenya, Kyrgyzstan, Nepal, Pakistan, Papua New Guinea and Tajikistan. Strategies fall into four broad categories: improving service delivery through selected, trained and supported community health workers (CHWs to act alongside formal health workers and the distribution of critical medicines to the home; improving the desirability of existing services by addressing the quality of care, innovative training and supervision of health workers; generating demand by engaging communities; and improving health knowledge for timely care-seeking. Task shifting, strengthened roles of CHWs and volunteers, mobile teams, and inclusive structured planning forums have proved effective. CONCLUSIONS: The review highlights where known evidence-based strategies have

  1. Difficult to predict early failure after major lower-extremity amputations

    DEFF Research Database (Denmark)

    Kristensen, Morten Tange; Holm, Gitte; Gebuhr, Peter

    2015-01-01

    INTRODUCTION: The successful outcome of a major amputation depends on several factors, including stump wound healing. The purpose of this study was to examine the criteria upon which the index amputation was based and to identify factors associated with early amputation failure after major non-tr...

  2. Measuring the Difficult to Measure: Teaching and Learning with an iPad

    Science.gov (United States)

    Hargis, Jace; Cavanaugh, Cathy; Kamali, Tayeb; Soto, Melissa

    2013-01-01

    This study applies a comprehensive set of measures to document teaching practice and instructor responses when integrating new mobile technology devices in the classroom. The triangulated measures include a rubric for observing teaching with mobile learning devices in higher education, an interview protocol for capturing faculty levels of mobile…

  3. CONDITIONED SUPERPROCESSES

    Institute of Scientific and Technical Information of China (English)

    LICUNHANG; WURONG

    1997-01-01

    A class of superprocesses which dies out is investigated. Under the condition of norextinction, a new superprocess is COnstructed, its life time is infinite, and its distribution isdetermined by the moment function. Several limit theorems about this superprocess and its occulpation time process are obtained.

  4. Adamantinoma of the pelvic bone, a difficult diagnosis with fatal outcome

    Institute of Scientific and Technical Information of China (English)

    Binesh F; Abrisham J; Sobhan M; Navabii H; Vahidfar MR; Ashrafi K

    2012-01-01

    Adamantinoma is a primary low grade malignant bone tumor that is predominantly located in the mid-portion of the tibia. The tumor is of interest for two reasons: first, there still exists considerable dispute as to the origin of the lesion and recent reports reveal that the condition is more malignant than had previously been supposed. Although cases of adamanti-noma located to the axial skeleton have been reported, this is the first case of adamantinoma located to pelvic bone in Iran. Here we present the clinical, radiological & histopathological features of a 19 year-old male with painful lesion located to the right pelvic bone which was morphologically and immunohistochemically diagnosed as adamantinoma. In general, metastasis is seen in 15%–20% of patients. The spread can occur to regional nodes, lung and infrequently to skeleton, liver and brain [1]. Several weeks after surgery, our patient's condition gradually worsened. A CT-scan of abdomen revealed widespread liver metastasis and the patient died due to acute liver failure. This case demonstrates that the mortality rate from adamantinoma is not always low.

  5. Face recognition method under difficult lighting condition%一种复杂光照下的人脸识别算法

    Institute of Scientific and Technical Information of China (English)

    孙劲光; 孙琦; 孟祥福; 丁胜锋

    2012-01-01

    In order to improve the rate of face recognition under illumination change, a method of face recognition based on Local Contrast Enhancement (LCE) and Local Phase Quantification (LPQ) is put forward. The face image with uneven illumination is compensated by using facial symmetry combined with LCE algorithm. The enhanced images are marked with LPQ operators, and their dimensions are reduced with block Discrete Cosine Transform (DCT). LPQ histogram sequence is calculated block by block as the description vector of face image, and it is recognized by the nearest neighbor classifier. The method is proved to be effectiveness with the experiment on the Yale B and CASPEAL database.%为提高光照变化下的人脸识别率,提出了一种基于局部对比增强(LCE)和局部相位量化(LPQ)的人脸识别方法.采用面部对称的思想结合LCE算法对受不均匀光照的人脸图像进行光照补偿;利用LPQ算子对增强后的图片进行标记,并用分块离散余弦变换(DCT)进行降维;分块计算LPQ直方图序列作为人脸图像的特征描述向量,送入最近邻分类器进行分类识别.通过Yale B和CAS PEAL数据库上的实验,证实了所提方法的有效性.

  6. Goldilocks Models of Higher-Dimensional Inflation (including modulus stabilization)

    CERN Document Server

    Burgess, C P; Hayman, Peter; Patil, Subodh P

    2016-01-01

    We explore the mechanics of inflation in simplified extra-dimensional models involving an inflaton interacting with the Einstein-Maxwell system in two extra dimensions. The models are Goldilocks-like in that they are just complicated enough to include a mechanism to stabilize the extra-dimensional size, yet simple enough to solve the full 6D field equations using basic tools. The solutions are not limited to the effective 4D regime with H m_KK, but when they do standard 4D fluctuation calculations need not apply. When in a 4D regime the solutions predict eta ~ 0 hence n_s ~ 0.96 and r ~ 0.096 and so are ruled out if tensor modes remain unseen. Analysis of general parameters is difficult without a full 6D fluctuation calculation.

  7. Adaptation of a difficult-to-manage asthma programme for implementation in the Dutch context: a modified e-Delphi.

    Science.gov (United States)

    Honkoop, Persijn J; Pinnock, Hilary; Kievits-Smeets, Regien M M; Sterk, Peter J; Dekhuijzen, P N Richard; In 't Veen, Johannes C C M

    2017-02-09

    Patients with difficult-to-manage asthma represent a heterogeneous subgroup of asthma patients who require extensive assessment and tailored management. The International Primary Care Respiratory Group approach emphasises the importance of differentiating patients with asthma that is difficult to manage from those with severe disease. Local adaptation of this approach, however, is required to ensure an appropriate strategy for implementation in the Dutch context. We used a modified three-round e-Delphi approach to assess the opinion of all relevant stakeholders (general practitioners, pulmonologists, practice nurses, pulmonary nurses and people with asthma). In the first round, the participants were asked to provide potentially relevant items for a difficult-to-manage asthma programme, which resulted in 67 items. In the second round, we asked participants to rate the relevance of specific items on a seven-point Likert scale, and 46 items were selected as relevant. In the third round, the selected items were categorised and items were ranked within the categories according to relevance. Finally, we created the alphabet acronym for the categories 'the A-I of difficult-to-manage asthma' to resonate with an established Dutch 'A-E acronym for determining asthma control'. This should facilitate implementation of this programme within the existing structure of educational material on asthma and chronic obstructive pulmonary disease (COPD) in primary care, with potential for improving management of difficult-to-manage asthma. Other countries could use a similar approach to create a locally adapted version of such a programme.

  8. Betel quid, chewing habits and difficult intubation: A case report and critical appraisal of evidence for practice.

    Science.gov (United States)

    Narendra, P L; Hegde, Harihar V; Vijaykumar, T K; Nallamilli, Samson

    2015-01-01

    Betel quid is used by 10-20% of world of population. Oral submucus fibrosis (OSF) is a chronic premalignant disease common in South Asian countries where betel quid is chewed. It is characterized by juxtaepithelial fibrosis of oral cavity and limited mouth opening, which can cause difficult intubation. A recent study in Taiwan has revealed long-term betel nut chewing is not predictor of difficult intubation. We describe two cases of OSF and critically analyze this study and its implications for clinical practice. OSF is now seen in Saudi Arabia and western countries with use of commercial betel quid substitutes. Although betel quid without tobacco is used in Taiwan, available evidence suggests rapid and early development of OSF where commercial chewing products like Pan Masala are used in India. Effects of betel quid may vary depending on the composition of quid and chewing habits. Studies where personal habits are involved must be analyzed carefully for external validity. Even though, Taiwan study is controlled, its validity outside Taiwan is highly questionable. Since OSF can cause unanticipated difficult intubation, thus during preanesthetic assessment, history of betel quid chewing, more importantly use of commercial chewing products is more likely to give clues to severity of OSF and possible difficult intubation. Further controlled trails in populations where commercial chewing products are used is necessary to detect association of chewing habits and difficult intubation.

  9. The Difficult Diagnosis of Ischaemic Papillary Muscle Rupture; Case report from an urban emergency department

    Directory of Open Access Journals (Sweden)

    Christian T. Braun

    2016-05-01

    Full Text Available We present a rare case of severe ischaemic papillary muscle rupture in a 67-year-old male patient who was admitted to the Emergency Department of the University Hospital Bern, Switzerland, in November 2013 with acute chest pain. On admission, the patient’s blood pressure was 60/40 mm/Hg, his pulse was 110 beats per minute and his respiratory rate was 20 breaths per minute. An electrocardiogram was normal and focused assessment with sonography in trauma was negative. Transthoracic echocardiography showed possible thickening of the mitral valve leaflet with no indications of severe mitral insufficiency or wall motion abnormalities. Triple-ruleout computed tomography angiography revealed no pulmonary emboli or aortic dissection, although coronary atherosclerosis was present. Finally, severe insufficiency of the mitral valve with rupture of the papillary muscle, likely due to ischaemia, was observed via transoesophageal echocardiography. The patient underwent a successful surgical intervention and was discharged 10 days later in stable condition.

  10. Difficult intubation management in a child with I-cell disease

    Directory of Open Access Journals (Sweden)

    Mahfouz Abdul

    2010-01-01

    Full Text Available I-cell disease (mucolipidosis II is a rare metabolic disorder resulting from the deficiency of a specific lysosomal enzyme, N-acetylglucosamine-1-phosphotransferease. Developmental delay and growth failure are common presentations of I-cell disease. Psychomotor deterioration is rapid and progressive. Some physical signs such as hip dislocations, inguinal hernia, hepatomegaly, joint limitation, and skin changes may be present at birth. Coarse facial features and skeletal abnormalities become more conspicuous with time. The life expectancy of children with this condition is poor, with death usually occurring around the fifth year. A case report of the anesthetic management of gingivectomy with multiple dental extractions in a 5-year-old Omani female with I-cell disease is presented. The problems faced and their management during anesthesia are described.

  11. Haemophilus influenzae Disease (Including Hib) Symptoms

    Science.gov (United States)

    ... Search The CDC Cancel Submit Search The CDC Haemophilus influenzae Disease (Including Hib) Note: Javascript is disabled or ... and Symptoms Recommend on Facebook Tweet Share Compartir Haemophilus influenzae , including Hib, disease causes different symptoms depending on ...

  12. Article Including Environmental Barrier Coating System

    Science.gov (United States)

    Lee, Kang N. (Inventor)

    2015-01-01

    An enhanced environmental barrier coating for a silicon containing substrate. The enhanced barrier coating may include a bond coat doped with at least one of an alkali metal oxide and an alkali earth metal oxide. The enhanced barrier coating may include a composite mullite bond coat including BSAS and another distinct second phase oxide applied over said surface.

  13. Static, Lightweight Includes Resolution for PHP

    NARCIS (Netherlands)

    Hills, M.A.; Klint, P.; Vinju, J.J.

    2014-01-01

    Dynamic languages include a number of features that are challenging to model properly in static analysis tools. In PHP, one of these features is the include expression, where an arbitrary expression provides the path of the file to include at runtime. In this paper we present two complementary analy

  14. Sensitivity of palm print sign in prediction of difficult laryngoscopy in diabetes: A comparison with other airway indices

    Directory of Open Access Journals (Sweden)

    K V Hashim

    2014-01-01

    Full Text Available Background and Aims: Diabetic patients are prone for the limited joint mobility syndrome. The atlanto-occipital joint involvement limits adequate extension of head and neck during laryngoscopy making intubation difficult. The collagen glycosylation starts in the fourth and fifth inter-phalangeal joints. The degree of inter-phalangeal involvement can be assessed by scoring the ink impression made by the palm of the dominant hand (palm print [PP] sign The aim of our study was to evaluate the PP sign as a screening tool for predicting difficult laryngoscopy in diabetic patients. Methods: A total of 60 diabetic patients undergoing general anaesthesia with endotracheal intubation were assessed pre-operatively for their airway indices using the modified Mallampati test, thyromental distance, degree of head extension, the PP test and the prayer sign and their corresponding Cormack-Lehane scores were noted. Statistical analysis was performed using Fischer exact test. Results: Of the 60 patients, 15 had positive PP sign. Of the 13 difficult laryngoscopies encountered, 10 patients had a positive PP sign. PP sign was the most sensitive index in predicting difficult laryngoscopy. P =0.000 was obtained and considered as statistically significant. The sensitivity was 76.9%, specificity 89.4%, positive and negative predictive value 71.4% and 91.3% and accuracy 86.7%, respectively. The other signs were not significant in predicting difficult laryngoscopy. Conclusion: The PP test appears to be the most sensitive and specific in the prediction of difficult laryngoscopy in diabetic patients.

  15. Wire-guided (Seldinger technique) intubation through a face mask in urgent, difficult and grossly distorted airways.

    Science.gov (United States)

    Heier, Jake M; Schroeder, Kristopher M; Galgon, Richard E; Arndt, George A

    2012-07-01

    We report two cases of successful urgent intubation using a Seldinger technique for airway management through an anesthesia facemask, while maintaining ventilation in patients with difficult airways and grossly distorted airway anatomy. In both cases, conventional airway management techniques were predicted to be difficult or impossible, and a high likelihood for a surgical airway was present. This technique was chosen as it allows tracheal tube placement through the nares during spontaneous ventilation with the airway stented open and oxygen delivery with either continuous positive airway pressure and/or pressure support ventilation. This unhurried technique may allow intubation when other techniques are unsuitable, while maintaining control of the airway.

  16. Wire-guided (Seldinger technique intubation through a face mask in urgent, difficult and grossly distorted airways

    Directory of Open Access Journals (Sweden)

    Jake M Heier

    2012-01-01

    Full Text Available We report two cases of successful urgent intubation using a Seldinger technique for airway management through an anesthesia facemask, while maintaining ventilation in patients with difficult airways and grossly distorted airway anatomy. In both cases, conventional airway management techniques were predicted to be difficult or impossible, and a high likelihood for a surgical airway was present. This technique was chosen as it allows tracheal tube placement through the nares during spontaneous ventilation with the airway stented open and oxygen delivery with either continuous positive airway pressure and/or pressure support ventilation. This unhurried technique may allow intubation when other techniques are unsuitable, while maintaining control of the airway.

  17. Why is mucormycosis more difficult to cure than more common mycoses?

    Science.gov (United States)

    Katragkou, A; Walsh, T J; Roilides, E

    2014-06-01

    Although considered to be a rare infection, mucormycosis (zygomycosis) has emerged as the second most common invasive mould infection. Despite the advent of newer antifungal agents, mortality rate of mucormycosis remains exceedingly high. Successful management of mucormycosis requires early diagnosis, reversal of underlying predisposing risk factors, surgical debridement and prompt administration of active antifungal agents. However, mucormycosis is not always amenable to cure. There are challenging obstacles that lead to difficulties in management of amphotericin B. These include unique host-based risk factors for mucormycosis, the fungus' resistance to innate host defences and distinctive features of its immunopathogenesis, such as extensive angioinvasion, increased virulence and use of chelators by the fungus as siderophores. In addition to these obstacles, the difficulties in early diagnosis, including nonspecific clinical manifestations, lack of serological methods, as well limitations of culture and molecular methods, lead to delay in initiation of antifungal therapy. Finally, the variability of susceptibility to amphotericin B and resistance to most other conventional antifungal agents leads to major limitations in successful treatment of this devastating infection.

  18. [The vegetative component of a conditioned reflex].

    Science.gov (United States)

    Ordzhonikadze, Ts A; Pkhakadze, L D

    1975-01-01

    Defensive and alimentary conditioned reflexes were studied on normal cats and cats with neural isolation of the neocortex. The cardiac component of the conditioned reflexes is elaborated in decorticated animals at a similar rate and is as steady as in normal cats. Motor conditioned reactions in decorticated cats are difficult to elaborate. Both in normal and decorticated cats unconditioned pain stimulation evokes tachycardia, while a conditioned signal, paired with this unconditioned stimulus, produces bradicardia. Ban assumption has been made that the primary conditioned reaction consists in the appearance of a certain emotional state which changes the cardiac rhythm in a typical way.

  19. [A difficult and complicated case study: neonatal intrahepatic cholestasis caused by citrin deficiency].

    Science.gov (United States)

    Song, Yuan-Zong; Hao, Hu; Ushikai, Miharu; Liu, Guo-Sheng; Xiao, Xin; Saheki, Takeyori; Kobayashi, Keiko; Wang, Zi-Neng

    2006-04-01

    Neonatal intrahepatic cholestasis caused by citrin deficiency (NICCD) is a kind of inborn errors of metabolism, with the main clinic manifestations of jaundice, hepatomegaly, and abnormal liver function indices. As a mitochondrial solute carrier protein, citrin plays important roles in aerobic glycolysis, gluconeogenesis, urea cycle, and protein and nucleotide syntheses. Therefore citrin deficiency causes various and complicated metabolic disturbances, such as hypoglycemia, hyperlactic acidemia, hyperammonemia, hypoproteinemia, hyperlipidemia, and galactosemia. This paper reported a case of NICCD confirmed by mutation analysis of SLC25A13, the gene encoding citrin. The baby (male, 6 months old) was referred to the First Affiliated Hospital with the complaint of jaundice of the skin and sclera, which it had suffered from for nearly 6 months. Physical examination showed obvious jaundice and a palpable liver 5 cm below the right subcostal margin. Liver function tests revealed elevated enzymatic activities, like GGT, ALP, AST, and ALT, together with increased levels of TBA, bilirubin (especially conjugated bilirubin), and decreased levels of total protein/albumin and fibrinogen. Blood levels of ammonia, lactate, cholesterol, and triglyceride were also increased, and in particular, the serum AFP level reached 319,225.70 microg/L, a extremely elevated value that has rarely been found in practice before. Tandem mass analysis of a dried blood sample revealed increased levels of free fatty acids and tyrosine, methionine, citrulline, and threonine as well. UP-GC-MS analysis of the urine sample showed elevated galactose and galactitol. The baby was thus diagnosed with suspected NICCD based on the findings. It was then treated with oral arginine and multiple vitamins (including fat-soluble vitamins A, D, E, and K), and was fed with lactose-free and medium-chain fatty acids enriched formula instead of breast feeding. After half a month of treatment, the jaundice disappeared

  20. CORPORATE SOCIAL RESPONSIBILITY AS CONDITION OF INCLUDING UKRAINE IN EUROPE AND WORLD ECONOMIC SPACE

    Directory of Open Access Journals (Sweden)

    T. Lytvynenko

    2013-09-01

    Full Text Available The thesis that companies’ activities for introduction of corporate social responsibility stimulates the speed of to the processes of the technical upgrade, modernization of company’s activity and increase of its profitability is proved within the article. Those Ukrainian companies, which have high index of activities transparency, are also the most profitable. However, we can’t observe any significant increment of number of companies joining the Global agreement. One of the explanations we could name is the unproved idea supported by some politicians and economists about a shadow (‘black’ market that allegedly allows creating workplaces and taking off social tension in society on the certain stage. Insignificant values of index of citizens’ trust to activity of industries holds on the development socially of responsible business. Trust considered as a part of the general social capital. The Government of Ukraine must support initiative of companies to introduce social responsibility of business, as many European governments do it. It is also important to inform society of advantages of CSR.

  1. 76 FR 9283 - Medicaid Program; Payment Adjustment for Provider-Preventable Conditions Including Health Care...

    Science.gov (United States)

    2011-02-17

    ..., Baltimore, MD 21244-1850. 4. By hand or courier. If you prefer, you may deliver (by hand or courier) your... arrival with one of our staff members. Comments mailed to the addresses indicated as appropriate for hand... Budget Office CDC Centers for Disease Control and Prevention DVT Deep vein thrombosis ESRD...

  2. 76 FR 32815 - Medicaid Program; Payment Adjustment for Provider-Preventable Conditions Including Health Care...

    Science.gov (United States)

    2011-06-06

    ... Artery Bypass Graft (CABG)--Mediastinitis. + Bariatric Surgery. --Laparoscopic Gastric Bypass... Surgical Site Infection following CABG or Bariatric surgery, are not typically applicable to pediatric or..., Bariatric Surgery, or Orthopedic procedures is not typically applicable to children and pregnant...

  3. Helical tomotherapy based intensity modulated radiotherapy for the management of difficult clinical situations in breast cancer

    Directory of Open Access Journals (Sweden)

    Animesh Saha

    2015-01-01

    Full Text Available Helical tomotherapy (HT can achieve a homogenous dose distribution in the planning target volume while minimizing the dose to the organ at risk. Tomotherapy has been used for complex breast cancer radiotherapy including bilateral breast irradiation, pectus excavatum, and internal mammary chain (IMC nodal irradiation. This report details our experience of using HT in breast cancers in newer clinical indications. Three patients with SCF nodal involvement (case 1, high level III axillary node recurrence (case 2, and composite irradiation of SCF, IMC, and whole breast (case 3 were treated using brachial plexus sparing HT. It was possible to boost the SCF, reirradiate the high level III axillary nodal recurrence and treat complex volume of breast, SCF, and IMC with acceptable and safe dose volume histogram constraints and with good homogeneity and conformity indices. The treatment was successful in controlling disease locoregionally at a 15 months follow-up. No patients reported symptoms suggestive of brachial plexopathy

  4. Difficult to predict early failure after major lower-extremity amputations

    DEFF Research Database (Denmark)

    Kristensen, Morten Tange; Holm, Gitte; Gebuhr, Peter

    2015-01-01

    INTRODUCTION: The successful outcome of a major amputation depends on several factors, including stump wound healing. The purpose of this study was to examine the criteria upon which the index amputation was based and to identify factors associated with early amputation failure after major non......-traumatic lower-extremity amputation. METHODS: We studied a consecutive one-year series of 36 men and 34 women with a median (25-75% quartiles) age of 72 (63-83) years who were treated in an acute orthopaedic ward; 44 below-knee and 26 above-knee amputees of whom 47 had an American Society of Anesthesiologists...... rating above two. Patient characteristics and other factors potentially influencing early amputation failure within 30 days were evaluated. RESULTS: Eleven patients died (16%) and 11 (16%) had a re-amputation at a higher level, whereas four (6%) had a major revision at the same level within 30 days...

  5. Novel use of an exchange catheter to facilitate intubation with an Aintree catheter in a tall patient with a predicted difficult airway: a case report

    Directory of Open Access Journals (Sweden)

    Gruenbaum Shaun E

    2012-04-01

    Full Text Available Abstract Introduction The Aintree intubating catheter (Cook® Medical Inc., Bloomington, IN, USA has been shown to successfully facilitate difficult intubations when other methods have failed. The Aintree intubating catheter (Cook® Medical Inc., Bloomington, IN, USA has a fixed length of 56 cm, and it has been suggested in the literature that it may be too short for safe use in patients who are tall. Case presentation We present the case of a 32-year-old, 180 cm tall Caucasian woman with a predicted difficult airway who presented to our facility for an emergency cesarean section. After several failed intubation attempts via direct laryngoscopy, an airway was established with a laryngeal mask airway. After delivery of a healthy baby, our patient's condition necessitated tracheal intubation. A fiber-optic bronchoscope loaded with an Aintree intubating catheter (Cook® Medical Inc., Bloomington, IN, USA was passed through the laryngeal mask airway into the trachea until just above the carina, but was too short to safely allow for the passage of an endotracheal tube. Conclusions We present a novel technique in which the Aintree intubating catheter (Cook® Medical Inc., Bloomington, IN, USA was replaced with a longer (100 cm exchange catheter, over which an endotracheal tube was passed successfully into the trachea.

  6. Politeness Strategies in Healthcare Communication at "Difficult Times": A Pragmatic Analysis of the "Manga" Discourse in "Nurse Aoi"

    Science.gov (United States)

    Matsuoka, Rieko; Poole, Gregory

    2015-01-01

    This paper examines the ways in which healthcare professionals interact with patients' family members, and/or colleagues. The data are from healthcare discourses at difficult times found in the manga series entitled Nurse AOI. As the first step, we selected several communication scenes for analysis in terms of politeness strategies. From these…

  7. Fiberoptic intubation through laryngeal mask airway for management of difficult airway in a child with Klippel–Feil syndrome

    Science.gov (United States)

    Bhat, Ravi; Mane, Rajesh S.; Patil, Manjunath C.; Suresh, S. N.

    2014-01-01

    The ideal airway management modality in pediatric patients with syndromes like Klippel-Feil syndrome is a great challenge and is technically difficult for an anesthesiologist. Half of the patients present with the classic triad of short neck, low hairline, and fusion of cervical vertebra. Numerous associated anomalies like scoliosis or kyphosis, cleft palate, respiratory problems, deafness, genitourinary abnormalities, Sprengel's deformity (wherein the scapulae ride high on the back), synkinesia, cervical ribs, and congenital heart diseases may further add to the difficulty. Fiberoptic bronchoscopy alone can be technically difficult and patient cooperation also becomes very important, which is difficult in pediatric patients. Fiberoptic bronchoscopy with the aid of supraglottic airway devices is a viable alternative in the management of difficult airway in children. We report a case of Klippel-Feil syndrome in an 18-month-old girl posted for cleft palate surgery. Imaging of spine revealed complete fusion of the cervical vertebrae with hypoplastic C3 and C6 vertebrae and thoracic kyphosis. We successfully managed airway in this patient by fiberoptic intubation through classic laryngeal mask airway (LMA). After intubation, we used second smaller endotracheal tube (ETT) to stabilize and elongate the first ETT while removing the LMA. PMID:25191201

  8. Fiberoptic intubation through laryngeal mask airway for management of difficult airway in a child with Klippel-Feil syndrome

    Directory of Open Access Journals (Sweden)

    Ravi Bhat

    2014-01-01

    Full Text Available The ideal airway management modality in pediatric patients with syndromes like Klippel-Feil syndrome is a great challenge and is technically difficult for an anesthesiologist. Half of the patients present with the classic triad of short neck, low hairline, and fusion of cervical vertebra. Numerous associated anomalies like scoliosis or kyphosis, cleft palate, respiratory problems, deafness, genitourinary abnormalities, Sprengel′s deformity (wherein the scapulae ride high on the back, synkinesia, cervical ribs, and congenital heart diseases may further add to the difficulty. Fiberoptic bronchoscopy alone can be technically difficult and patient cooperation also becomes very important, which is difficult in pediatric patients. Fiberoptic bronchoscopy with the aid of supraglottic airway devices is a viable alternative in the management of difficult airway in children. We report a case of Klippel-Feil syndrome in an 18-month-old girl posted for cleft palate surgery. Imaging of spine revealed complete fusion of the cervical vertebrae with hypoplastic C3 and C6 vertebrae and thoracic kyphosis. We successfully managed airway in this patient by fiberoptic intubation through classic laryngeal mask airway (LMA. After intubation, we used second smaller endotracheal tube (ETT to stabilize and elongate the first ETT while removing the LMA.

  9. Limitations in the Activity of Mobility at Age 6 Years After Difficult Birth at Term : A Prospective Cohort Study

    NARCIS (Netherlands)

    van Iersel, Patricia A. M.; Algra, Annechien M.; Bakker, Saskia C. M.; Jonker, Arnold J. H.; Hadders-Algra, Mijna

    2016-01-01

    Background. A difficult birth at term (DBAT) may manifest as fetal acidosis and low Apgar scores and is often referred to as "perinatal asphyxia," especially when infants show signs of neonatal encephalopathy (NE). In contrast to DBAT resulting in moderate-to-severe NE, which is associated with neur

  10. Fluoroscopy assisted tracheal intubation in a case of anticipated difficult airway: Fail safe devices can also fail.

    Science.gov (United States)

    Arulvelan, Appavoo; Soumya, Madhusudhan; Santhosh, Kannath

    2015-01-01

    Difficulty in airway management is the most important cause of major anesthesia-related morbidity and mortality. Unexpected difficulties may arise even with proper preanesthesia planning. Here, we report a case of anticipated difficult airway primarily planned for flexible fibreoptic bronchoscope assisted intubation, but due to unexpected failure of light source, fluoroscopy was used, and the airway was successfully secured.

  11. Difficult Dialogues, Privilege and Social Justice: Uses of the Privileged Identity Exploration (PIE) Model in Student Affairs Practice

    Science.gov (United States)

    Watt, Sherry K.

    2007-01-01

    This article will introduce the Privileged Identity Exploration (PIE) Model. This model identifies eight (8) defense modes associated with behaviors individuals display when engaged in difficult dialogues about social justice issues. Implications for the model and ways it can be used to assist facilitators as they engage participants in…

  12. The palm print as a sensitive predictor of difficult laryngoscopy in diabetics: a comparison with other airway evaluation indices.

    Directory of Open Access Journals (Sweden)

    Vani V

    2000-04-01

    Full Text Available AIMS: To evaluate the ink impression made by the palm of the dominant hand as a screening tool for difficult laryngoscopy in diabetic patients. SUBJECTS AND METHODS: In this prospective study, airway of 50 adult diabetic patients, undergoing elective surgery under general anaesthesia, was assessed preoperatively using the common clinical indices such as Modified Mallampati test, thyromental distance, degree of head extension and a specific index- the palm print test. Following induction of anaesthesia and neuromuscular relaxation, laryngoscopy was performed and the laryngoscopic view scored. The sensitivity, specificity and positive predictive value of each airway evaluation index were calculated. RESULTS: The incidence of difficult laryngoscopy was 16%. The palm print test had the highest sensitivity (75% of all the indices. The thyromental distance less than six cm had the highest specificity (95.2% but was least sensitive (25%. 87% of patients with difficult laryngoscopy had two or more indices abnormal. CONCLUSION: Though the palm print test was the most sensitive index of the four indices studied, a better prediction of difficult laryngoscopy can be achieved by evaluating all the four airway indices preoperatively.

  13. The videolaryngoscope is less traumatic than the classic laryngoscope for a difficult airway in an obese patient

    NARCIS (Netherlands)

    Maassen, R.; Lee, R.; Van Zundert, A.; Cooper, R.

    2009-01-01

    This report describes the anesthetic management of an obese patient with a difficult airway and the merits of videolaryngoscopy, specifically in terms of the reduced risk of dental damage during intubation. A 49-year-old woman (body mass index; BMI, 36 kg·m−2), was scheduled to undergo an elective l

  14. Why Is Statistics Perceived as Difficult and Can Practice during Training Change Perceptions? Insights from a Prospective Mathematics Teacher

    Science.gov (United States)

    Fitzmaurice, Olivia; Leavy, Aisling; Hannigan, Ailish

    2014-01-01

    An investigation into prospective mathematics/statistics teachers' (n = 134) conceptual understanding of statistics and attitudes to statistics carried out at the University of Limerick revealed an overall positive attitude to statistics but a perception that it can be a difficult subject, in particular that it requires a great deal of discipline…

  15. Poetry and Prose as Pedagogical Tools for Addressing Difficult Knowledges: Translocational Positionality and Issues of Collective Political Agency

    Science.gov (United States)

    Keddie, Amanda

    2012-01-01

    In this paper the focus is on the possibilities that poetry and prose offer as pedagogical tools that can both accommodate and address difficult and painful knowledges. The paper presents and analyses poems and prose written by students at a non-traditional secondary school for disadvantaged girls (many of whom identify as Indigenous Australian).…

  16. Owning My Thoughts Was Difficult: Encouraging Students to Read and Write Critically in a Tertiary Qualitative Research Methods Course

    Science.gov (United States)

    Wiles, Janine L.; Allen, Ruth E. S.; Butler, Rachael

    2016-01-01

    This paper adds to the nascent literature on teaching research methods and what students learn from courses and assessment. Postgraduate students are often confronted with large amounts of reading, and the content of material can be intimidating. Convincing them also to engage critically with readings is even more difficult. We report on a…

  17. What Are We Going to Do with You? Gastroenterology Service Providers’ Perception of ‘Difficult to Manage’ IBD Patients

    Directory of Open Access Journals (Sweden)

    T Michael Vallis

    2002-01-01

    Full Text Available BACKGROUND: This paper reports the results of a systematic survey of members of a clinical gastroenterology service to determine their perceptions of patients with inflammatory bowel disease (IBD who were deemed to function poorly and were difficult to manage clinically.

  18. The long shadows of the difficult past? How young people in Denmark, Finland and Germany remember WWII

    DEFF Research Database (Denmark)

    Wolnik, Kevin; Busse, Britta; Tholen, Jochen

    2017-01-01

    This paper focuses on the question of how young people today evaluate the Second World War today and how this ‘difficult past’ determines their political attitudes. Furthermore, the channels through which the current young generation in Europe is informed about the events dating back to the first...

  19. Using simulation to study difficult clinical issues: prenatal counseling at the threshold of viability across american and dutch cultures

    NARCIS (Netherlands)

    Geurtzen, R.; Hogeveen, M.; Rajani, A.K.; Chitkara, R.; Antonius, T.A.; Heijst, A.F. van; Draaisma, J.M.; Halamek, L.P.

    2014-01-01

    OBJECTIVE: Prenatal counseling at the threshold of viability is a challenging yet critically important activity, and care guidelines differ across cultures. Studying how this task is performed in the actual clinical environment is extremely difficult. In this pilot study, we used simulation as a met

  20. Development of the A-DIVA Scale: A Clinical Predictive Scale to Identify Difficult Intravenous Access in Adult Patients Based on Clinical Observations.

    Science.gov (United States)

    van Loon, Fredericus H J; Puijn, Lisette A P M; Houterman, Saskia; Bouwman, Arthur R A

    2016-04-01

    Placement of a peripheral intravenous catheter is a routine procedure in clinical practice, but failure of intravenous cannulation regularly occurs. An accurate and reliable predictive scale for difficult venous access creates the possibility to use other techniques in an earlier time frame. We aimed to develop a predictive scale to identify adult patients with a difficult intravenous access prospectively: the A-DIVA scale. This prospective, observational, cross-sectional cohort study was conducted between January 2014 and January 2015, and performed at the department of anesthesiology of the Catharina Hospital (Eindhoven, The Netherlands). Patients 18 years or older were eligible if scheduled for any surgical procedure, regardless ASA classification, demographics, and medical history. Experienced and certified anesthesiologists and nurse anesthetists routinely obtained peripheral intravenous access. Cannulation was performed regarding standards for care. A failed peripheral intravenous cannulation on the first attempt was the outcome of interest. A population-based sample of 1063 patients was included. Failure of intravenous cannulation was observed in 182/1063 patients (17%). Five variables were associated with a failed first attempt of peripheral intravenous cannulation: palpability of the target vein (OR = 4.94, 95% CI [2.85-8.56]; P < 0.001), visibility of the target vein (OR = 3.63, 95% CI [2.09-6.32]; P < 0.001), a history of difficult peripheral intravenous cannulation (OR = 3.86, 95% CI [2.39-6.25]; P < 0.001), an unplanned indication for surgery (OR = 4.86, 95% CI [2.92-8.07]; P < 0.001), and the vein diameter of at most 2 millimeters (OR = 3.37, 95% CI [2.12-5.36]; P < 0.001). The scoring system was applied in 3 risk groups: 36/788 patients (5%) suffered from a failed first attempt in the low-risk group (A-DIVA score 0 or 1), whereas the medium (A-DIVA score 2 or 3) and high-risk group (A-DIVA score 4 plus

  1. Systematizing semishortening conditions

    Science.gov (United States)

    Ju, C.-Y.; Siegel, W.

    2014-12-01

    We rederive semishortening conditions for four-dimensional superconformal field theory with a different approach. These conditions have similar patterns that can be generalized to weaker constraints, including all those of Dolan and Osborn [Ann. Phys. (Amsterdam) 307, 41 (2003)]. In particular, for the case of N =4 super-Yang-Mills theory formulated in projective superspace, we find constraints for all Bogomol'nyi-Prasad-Sommerfield operators. We also give an example how constraints can be found from known ones. These constraints are a subset of our maximal set of semishortening conditions.

  2. Stressors rendering school coexistence difficult, personal variables and burnout: towards an explanatory model

    Directory of Open Access Journals (Sweden)

    José M. Otero-López

    2010-12-01

    Full Text Available The main objective of this study is analyze the inter-relationships between the main stressors posing difficulties for school coexistence (students’ disruptive behavior, the teachers’ perception of a lack of social support and conflict, different personal variables (Type A behavior pattern, optimism, hardiness and burnout. Furthermore, personal variables will be tested to see whether they mediate the influence of the different sources of stress analyzed in burnout. From the results obtained, using a sample of 1537 secondary education teachers, the covariation between the different sets of variables analyzed is not only confirmed but also significant support is given for the mediation hypothesis (stressors would have an indirect influence on burnout through personal variables. Another interesting finding is the need to include in the resulting model a direct effect between the students’ disruptive behavior and the teacher’s burnout experience. In short, the resulting path confirms the personal variables analyzed as a necessary filter in the analysis of the stressors-burnout link, while at the same time integrating the direct effect that students’ disruptive behavior has on teacher’s occupational malaise. .

  3. Meniere′s disease: Still a mystery disease with difficult differential diagnosis

    Directory of Open Access Journals (Sweden)

    Vassiliou A

    2011-01-01

    Full Text Available One hundred and forty-six years after its first description, the differential diagnosis of Meniere′s disease remains very challenging. The aim of the present study is to review the current knowledge on the advantages and disadvantages of the new diagnostic methods for Meniere′s disease. The importance of accurate diagnosis for primary healthcare systems is also discussed. An extensive search of the literature was performed in Medline and other available database sources. Information from electronic links and related books were also included. Controlled clinical studies, prospective cohort studies, retrospective cohort studies, cross-sectional studies, case reports, written guidelines, systematic reviews, and books were selected. The typical clinical triad of symptoms from the vestibular and cochlear systems (recurrent vertigo, fluctuating sensorineural hearing loss and tinnitus is usually the key for clinical diagnosis. Glycerol dehydration test and electrocochleography are the main diagnostic tests in current practice, while vestibular evoked myogenic potentials may be used in disease staging. Imagine techniques are not specific enough to set alone the diagnosis of Meniere′s disease, although they may be necessary to exclude other pathologies. Recently developed 3D MRI protocols can delineate the perilymphatic/endolymphatic spaces of the inner ear and aid diagnosis. Meniere′s disease is a continuous problem for the patients and affects their quality of life. Taking into account the frequent nature of the disease in certain countries, efforts for reliable diagnosis, prompt referral, and successful management are undoubtedly cost-effective for healthcare systems.

  4. [A difficult intubation: prolapse of the epiglottis into the trachea in an infant].

    Science.gov (United States)

    Dehne, M G; Knothe, C; Hempelmann, G

    1993-06-01

    Luxation of the epiglottic cartilage is a very uncommon complication of endotracheal intubation in paediatric anaesthesia. We report on a case of prolapse of the epiglottic cartilage into the trachea in a 4-month-old child who had been anaesthetized for palliative banding of the pulmonary artery and correction of a coarctation of the aorta. Further malformations included a single ventricle combined with an ASD II and VSD. The first intubation (ID 3.5 mm) via the nasopharyngeal route seemed not to involve any problems; breathing pressure, however, increased to 25 cm H2O. Direct laryngoscopy after extubation of the smaller tube and insertion of another one (ID 4.0 mm) demonstrated a completely blocked trachea. The epiglottidean cartilage had prolapsed into the tracheal lumen and excluded any possibility of ventilating the patient. After seizing the epiglottic cartilage with a Magill forceps it was possible to pull the cartilage out of the trachea and to intubate again with the 4.0 mm tube. There were no complications in the postoperative period.

  5. Critical appraisal of pralatrexate in the management of difficult-to-treat peripheral T cell lymphoma

    Directory of Open Access Journals (Sweden)

    Casanova M

    2011-10-01

    Full Text Available M Casanova, A Medina-Pérez, M Moreno-Beltran, M Mata-Vazquez, A RuedaOncohematology Service, Hospital Costa del Sol, Marbella, SpainAbstract: Aggressive T cell lymphomas are a subgroup of lymphomas with a particularly poor prognosis. This is especially true for patients with recurrent or refractory disease, who typically have limited response to salvage therapy and extremely poor overall survival. For this reason, there is a strong need to develop potentially active drugs for these malignancies. Pralatrexate is a novel antifolate designed to have high affinity for reduced folate carrier type 1. Preclinical and clinical studies have demonstrated that pralatrexate has significant activity against T cell lymphomas. The dose-limiting toxicity for pralatrexate is mucositis, which can be abrogated with folic acid and vitamin B12 supplementation. Pralatrexate is the first single agent approved for the treatment of patients with relapsed or refractory peripheral T cell lymphoma. This approval was based on an overall objective response rate observed in the pivotal study. The overall response rate was 29%, with a median duration of 10.1 months. This article reviews the biochemistry, preclinical experience, metabolism, and pharmacokinetics of pralatrexate, including the clinical experience with this agent in lymphoma. Future areas of development are now focused on identifying synergistic combinations of pralatrexate with other agents and the evaluation of predictive markers for clinical benefit.Keywords: pralatrexate, peripheral T cell lymphoma

  6. Jet grouting for a groundwater cutoff wall in difficult glacial soil deposits

    Energy Technology Data Exchange (ETDEWEB)

    Flanagan, R.F.; Pepe, F. Jr. [Parsons Brinckerhoff Quade & Douglas, New York, NY (United States)

    1997-12-31

    Jet grouting is being used as part of a groundwater cutoff wall system in a major New York City subway construction project to limit drawdowns in an adjacent PCB contamination plume. A circular test shaft of jet grout columns was conducted during the design phase to obtain wall installation parameters. The test program also included shaft wall mapping, and measurements of; inflows, piezometric levels, ground heave and temperature, and jet grout hydraulic conductivity. An axisymmetric finite element method groundwater model was established to back calculate the in-situ hydraulic conductivities of both the surrounding glacial soils and the jet grout walls by matching observed inflows and piezometric levels. The model also verified the use of packer permeability test as a tool in the field to evaluate the hydraulic conductivities of jet grout columns. Both the test program and analytic studies indicated that adjustments to the construction procedures would be required to obtain lower hydraulic conductivities of the jet grout walls for construction. A comparison is made with the conductivities estimated from the test program/analytic studies with those from the present construction.

  7. Neuromuscular blockade for improvement of surgical conditions during laparotomy

    DEFF Research Database (Denmark)

    Madsen, Matias Vested; Scheppan, Susanne; Kissmeyer-Nielsen, Peter

    2015-01-01

    INTRODUCTION: During laparotomy, surgeons frequently experience difficult surgical conditions if the patient's abdominal wall or diaphragm is tense. This issue is particularly pertinent while closing the fascia and placing the intestines into the abdominal cavity. Establishment of a deep neuromus......INTRODUCTION: During laparotomy, surgeons frequently experience difficult surgical conditions if the patient's abdominal wall or diaphragm is tense. This issue is particularly pertinent while closing the fascia and placing the intestines into the abdominal cavity. Establishment of a deep...

  8. Physical conditions

    DEFF Research Database (Denmark)

    Nielsen, Birte Lindstrøm; Appleby, M.C.; Waran, N.K.

    2011-01-01

    The physical environment of an animal is sometimes altered if it is found to cause problems for animal welfare. These changes are commonly quite specific (making changes to space, food, water, aspects of housing design such as flooring, or to other environmental factors such as air quality) and may...... be effective in preventing injuries or disease. However, such measures may not be implemented in practice (usually for economic reasons), and where implemented may cause other problems, as when concern for hygiene leads to animals being kept in barren conditions. Numerous ways have also been tried to diversify...... feeding methods in order to improve animal welfare, but specific changes to the environment such as these often have widespread effects, some of which may be detrimental. For example, inclusion of novel pen structures meant to enrich the environment may lead to increased aggression. A more general...

  9. Adaptation of a difficult-to-manage asthma programme for implementation in the Dutch context: a modified e-Delphi

    Science.gov (United States)

    Honkoop, Persijn J; Pinnock, Hilary; Kievits-Smeets, Regien M M; Sterk, Peter J; Dekhuijzen, P N Richard; in ’t Veen, Johannes C C M

    2017-01-01

    Patients with difficult-to-manage asthma represent a heterogeneous subgroup of asthma patients who require extensive assessment and tailored management. The International Primary Care Respiratory Group approach emphasises the importance of differentiating patients with asthma that is difficult to manage from those with severe disease. Local adaptation of this approach, however, is required to ensure an appropriate strategy for implementation in the Dutch context. We used a modified three-round e-Delphi approach to assess the opinion of all relevant stakeholders (general practitioners, pulmonologists, practice nurses, pulmonary nurses and people with asthma). In the first round, the participants were asked to provide potentially relevant items for a difficult-to-manage asthma programme, which resulted in 67 items. In the second round, we asked participants to rate the relevance of specific items on a seven-point Likert scale, and 46 items were selected as relevant. In the third round, the selected items were categorised and items were ranked within the categories according to relevance. Finally, we created the alphabet acronym for the categories ‘the A–I of difficult-to-manage asthma’ to resonate with an established Dutch ‘A–E acronym for determining asthma control’. This should facilitate implementation of this programme within the existing structure of educational material on asthma and chronic obstructive pulmonary disease (COPD) in primary care, with potential for improving management of difficult-to-manage asthma. Other countries could use a similar approach to create a locally adapted version of such a programme. PMID:28184039

  10. Peristomal skin complications are common, expensive, and difficult to manage: a population based cost modeling study.

    Directory of Open Access Journals (Sweden)

    Søren Meisner

    Full Text Available BACKGROUND: Peristomal skin complications (PSCs are the most common post-operative complications following creation of a stoma. Living with a stoma is a challenge, not only for the patient and their carers, but also for society as a whole. Due to methodological problems of PSC assessment, the associated health-economic burden of medium to longterm complications has been poorly described. AIM: The aim of the present study was to create a model to estimate treatment costs of PSCs using the standardized assessment Ostomy Skin Tool as a reference. The resultant model was applied to a real-life global data set of stoma patients (n = 3017 to determine the prevalence and financial burden of PSCs. METHODS: Eleven experienced stoma care nurses were interviewed to get a global understanding of a treatment algorithm that formed the basis of the cost analysis. The estimated costs were based on a seven week treatment period. PSC costs were estimated for five underlying diagnostic categories and three levels of severity. The estimated treatment costs of severe cases of PSCs were increased 2-5 fold for the different diagnostic categories of PSCs compared with mild cases. French unit costs were applied to the global data set. RESULTS: The estimated total average cost for a seven week treatment period (including appliances and accessories was 263€ for those with PSCs (n = 1742 compared to 215€ for those without PSCs (n = 1172. A co-variance analysis showed that leakage level had a significant impact on PSC cost from 'rarely/never' to 'always/often' p<0.00001 and from 'rarely/never' to 'sometimes' p = 0.0115. CONCLUSION: PSCs are common and troublesome and the consequences are substantial, both for the patient and from a health economic viewpoint. PSCs should be diagnosed and treated at an early stage to prevent long term, debilitating and expensive complications.

  11. Global Climate Change for Kids: Making Difficult Ideas Accessible and Exciting

    Science.gov (United States)

    Fisher, D. K.; Leon, N.; Greene, M. P.

    2009-12-01

    NASA has recently launched its Global Climate Change web site (http://climate.nasa.gov), and it has been very well received. It has now also launched in preliminary form an associated site for children and educators, with a plan for completion in the near future. The goals of the NASA Global Climate Change Education site are: To increase awareness and understanding of climate change science in upper-elementary and middle-school students, reinforcing and building upon basic concepts introduced in the formal science education curriculum for these grades; To present, insofar as possible, a holistic picture of climate change science and current evidence of climate change, describing Earth as a system of interconnected processes; To be entertaining and motivating; To be clear and easy to understand; To be easy to navigate; To address multiple learning styles; To describe and promote "green" careers; To increase awareness of NASA's contributions to climate change science; To provide valuable resources for educators; To be compliant with Section 508 of the Americans with Disabilities Act. The site incorporates research findings not only on climate change, but also on effective web design for children. It is envisioned that most of the content of the site will ultimately be presented in multimedia forms. These will include illustrated and narrated "slide shows," animated expositions, interactive concept-rich games and demonstrations, videos, animated fictionalized stories, and printable picture galleries. In recognition of the attention span of the audience, content is presented in short, modular form, with a suggested, but not mandatory order of access. Empathetic animal and human cartoon personalities are used to explain concepts and tell stories. Expository, fiction, game, video, text, and image modules are interlinked for reinforcement of similar ideas. NASA's Global Climate Change Education web site addresses the vital need to impart and emphasize Earth system science

  12. Strategies for attraction and retention of health workers in remote and difficult-to-access areas of Chhattisgarh, India: Do they work?

    Directory of Open Access Journals (Sweden)

    Suchitra Lisam

    2015-01-01

    Full Text Available Background: To address the acute shortages of health workers in underserved, remote, and difficult-to-access areas, the Government of Chhattisgarh and the National Rural Health Mission (NRHM launched the Chhattisgarh Rural Medical Corps (CRMC in 2009. CRMC has enabled provisions such as financial incentives, residential accommodation, life insurance, and extra marks during admission at the postgraduate (PG level to eligible doctors for the attraction and retention of health workers, i.e., doctors, staff nurses, auxiliary nurse midwives (ANMs, and rural medical assistants (RMAs in underserved areas. Objectives: This study aims to understand the CRMC scheme in terms of implementation, challenges, gaps, and outcome in achieving the attraction and retention of health workers in the remote and difficult-to-access areas of Chhattisgarh. Materials and Methods: The study adopts a mix of both qualitative and quantitative research methods. The purposive sampling method was used for the selection of three districts having normal, difficult, and inaccessible areas. Data were collected through key informant (KI interviews with beneficiaries and non-beneficiaries of CRMC or district and state government officials, and reviews of document were analyzed using a thematic analysis approach. Results: CRMC has made positive outcome as 1319 health workers, including doctors, have joined the service in 2010-11, reducing the vacancy of doctors from 90% to 45%. The scope of CRMC was primarily limited to payment of monthly financial incentives. The fund utilization rate of CRMC has increased (from 27% in 2009-10 to 98% in 2011-12, though there are delays in payment of incentives. The majority of staff lack awareness about CRMC during job applications. The payment of incentives based on facility performance has demotivated staff. Conclusions: Establishment of a performance management system, activating the CRMC cell to make it functional, and wide publicity of CRMC

  13. An Integrated Biochemistry Laboratory, Including Molecular Modeling

    Science.gov (United States)

    Hall, Adele J. Wolfson Mona L.; Branham, Thomas R.

    1996-11-01

    The dilemma of designing an advanced undergraduate laboratory lies in the desire to teach and reinforce basic principles and techniques while at the same time exposing students to the excitement of research. We report here on a one-semester, project-based biochemistry laboratory that combines the best features of a cookbook approach (high success rate, achievement of defined goals) with those of an investigative, discovery-based approach (student involvement in the experimental design, excitement of real research). Individual modules may be selected and combined to meet the needs of different courses and different institutions. The central theme of this lab is protein purification and design. This laboratory accompanies the first semester of biochemistry (Structure and Function of Macromolecules, a course taken mainly by junior and senior chemistry and biological chemistry majors). The protein chosen as the object of study is the enzyme lysozyme, which is utilized in all projects. It is suitable for a student lab because it is easily and inexpensively obtained from egg white and is extremely stable, and its high isoelectric point (pI = 11) allows for efficient separation from other proteins by ion-exchange chromatography. Furthermore, a literature search conducted by the resourceful student reveals a wealth of information, since lysozyme has been the subject of numerous studies. It was the first enzyme whose structure was determined by crystallography (1). Hendrickson et al. (2) have previously described an intensive one-month laboratory course centered around lysozyme, although their emphasis is on protein stability rather than purification and engineering. Lysozyme continues to be the focus of much exciting new work on protein folding and dynamics, structure and activity (3 - 5). This lab course includes the following features: (i) reinforcement of basic techniques, such as preparation of buffers, simple enzyme kinetics, and absorption spectroscopy; (ii

  14. Why is it difficult to implement e-health initiatives? A qualitative study

    Directory of Open Access Journals (Sweden)

    Wallace Paul

    2011-01-01

    Full Text Available Abstract Background The use of information and communication technologies in healthcare is seen as essential for high quality and cost-effective healthcare. However, implementation of e-health initiatives has often been problematic, with many failing to demonstrate predicted benefits. This study aimed to explore and understand the experiences of implementers -- the senior managers and other staff charged with implementing e-health initiatives and their assessment of factors which promote or inhibit the successful implementation, embedding, and integration of e-health initiatives. Methods We used a case study methodology, using semi-structured interviews with implementers for data collection. Case studies were selected to provide a range of healthcare contexts (primary, secondary, community care, e-health initiatives, and degrees of normalization. The initiatives studied were Picture Archiving and Communication System (PACS in secondary care, a Community Nurse Information System (CNIS in community care, and Choose and Book (C&B across the primary-secondary care interface. Implementers were selected to provide a range of seniority, including chief executive officers, middle managers, and staff with 'on the ground' experience. Interview data were analyzed using a framework derived from Normalization Process Theory (NPT. Results Twenty-three interviews were completed across the three case studies. There were wide differences in experiences of implementation and embedding across these case studies; these differences were well explained by collective action components of NPT. New technology was most likely to 'normalize' where implementers perceived that it had a positive impact on interactions between professionals and patients and between different professional groups, and fit well with the organisational goals and skill sets of existing staff. However, where implementers perceived problems in one or more of these areas, they also perceived a lower

  15. The difficult challenge of a two-phase CFD modelling for all flow regimes

    Energy Technology Data Exchange (ETDEWEB)

    Bestion, D., E-mail: dominique.bestion@cea.fr

    2014-11-15

    Highlights: • The theoretical difficulties for modelling all flow regimes at CFD scale are identified. • The choice of the number of fields and of the time and space averaging or filtering are discussed and clarified. • Closure issues related to an all flow regime CFD model are listed and the main difficulties are identified. - Abstract: System thermalhydraulic codes model all two-phase flow regimes but they are limited to a macroscopic description. Two-phase CFD tools predict two-phase flow with a much finer space resolution but the current modelling capabilities are limited to dispersed bubbly or droplet flow and separate-phase flow. Much less experience exists on more complex flow regimes which combine the existence of dispersed fields with the presence of large interfaces such as a free surface or a film surface. A list of possible reactor issues which might benefit from an “all flow regime CFD model” is given. The first difficulty is to identify the various types of local flow configuration. It is shown that a 4-field model has much better capabilities than a two-fluid approach to identify most complex regimes. Then the choice between time averaging, space averaging, or even ensemble averaging is discussed. It is shown that only the RANS-2-fluid and a space-filtered 4-field model may be reasonably envisaged. The latter has the capabilities to identify all types of interfaces and should be privileged if a good accuracy is expected or if time fluctuations in intermittent flow have to be predicted while the former may be used when a high accuracy is not necessary and if time fluctuations in intermittent flow are not of interest. Finally the closure issue is presented including wall transfers, interfacial transfers, mass transfers between dispersed and continuous fields, and turbulent transfers. An important effort is required to model all interactions between sub-filter phenomena and the transfers from the sub-filter domain to the simulated domain. The

  16. 28 CFR 20.32 - Includable offenses.

    Science.gov (United States)

    2010-07-01

    ...., drunkenness, vagrancy, disturbing the peace, curfew violation, loitering, false fire alarm, non-specific charges of suspicion or investigation, and traffic violations (except data will be included on arrests...

  17. Births and deaths including fetal deaths

    Data.gov (United States)

    U.S. Department of Health & Human Services — Access to a variety of United States birth and death files including fetal deaths: Birth Files, 1968-2009; 1995-2005; Fetal death file, 1982-2005; Mortality files,...

  18. Electron Microprobe Analysis of Hf in Zircon: Suggestions for Improved Accuracy of a Difficult Measurement

    Science.gov (United States)

    Fournelle, J.; Hanchar, J. M.

    2013-12-01

    La with the accelerating voltage under 18 keV (e.g. 17 keV is optimal), and also with synthetic stoichiometric hafnon as the standard. We have developed useful standards that are to be distributed to the community for those researchers working on this problem and can be obtained from the second author at jhanchar@mun.ca. The standards include synthetic stoichiometric undoped zircon and hafnon, and synthetic zircon doped with 2 wt. % Hf. Donovan et al. (2002) Probe for Windows: User's Guide and Reference Wiedenbeck, M., et al. (2004) Further characterisation of the 91500 zircon crystal. Geostandards and Geoanatytical Research, 28: 9-39.

  19. Including Indigenous Minorities in Decision-Making

    DEFF Research Database (Denmark)

    Pristed Nielsen, Helene

    Based on theories of public sphere participation and deliberative democracy, this book presents empirical results from a study of experiences with including Aboriginal and Maori groups in political decision-making in respectively Western Australia and New Zealand......Based on theories of public sphere participation and deliberative democracy, this book presents empirical results from a study of experiences with including Aboriginal and Maori groups in political decision-making in respectively Western Australia and New Zealand...

  20. Survey of Macrofungi (including Truffles in Qatar

    Directory of Open Access Journals (Sweden)

    Roda F Al-Thani

    2010-07-01

    Full Text Available Fourteen macrofungal genera belonging to 11 families and 7 orders were identified. These were isolated from different habitats (semi- desert, gardens, park, decayed roots of dead trees and under trees in Qatar. Macrofungi are defined here as ascomycetes and basidiomycetes with large, conspicuous spore-bearing structures that form above or beneath ground. This study indicated that the distribution of macrofungi is dependent on the plant community and the environmental conditions.

  1. Le rôle de l'information en droit des entreprises en difficulté

    OpenAIRE

    Ould Eba, Moussa

    2013-01-01

    L’information est un moyen de gestion fiable et une garantie indispensable pour la protection des intérêts des acteurs de l’activité économique. Elle joue un rôle important dans la prévention et le traitement des difficultés des entreprises. En effet, à la lumière des informations comptables, financières et sociales, les dirigeants peuvent prévenir les difficultés et prendre les décisions adaptées à la situation de l’entreprise. Toutefois, en cas de procédures collectives, le besoin de protec...

  2. A study of physicians' intention to quit: the role of burnout, commitment and difficult doctor-patient interactions.

    Science.gov (United States)

    Moreno-Jiménez, Bernardo; Gálvez-Herrer, Macarena; Rodríguez-Carvajal, Raquel; Sanz Vergel, Ana Isabel

    2012-05-01

    Research on burnout and turnover intentions offers some inconsistent findings about the effects of commitment. In addition, a factor which is insufficiently studied in the turnover field is the relationship with the recipient of physicians' work, that is, the patient. This study contributes to the research literature by examining how the moderating effect of commitment depends on difficult doctor-patient relations. A total of 480 physicians, representative of Madrid, completed the survey. According to the interaction effects and the three-way interaction analyses, the results support the argument that differences in commitment lead to differences in the way physicians perceive job, interpersonal, and chronic stress. These results add a new approach to the general assumption that commitment has a unilateral negative effect, and difficult patients have a positive effect on turnover intentions, suggesting an integrated perspective, rather than a diametrical one, that allows us comprehend the complexity of physicians' turnover intentions.

  3. The effects of sexism, psychological distress, and difficult sexual situations on U.S. women's sexual risk behaviors.

    Science.gov (United States)

    Choi, Kyung-Hee; Bowleg, Lisa; Neilands, Torsten B

    2011-10-01

    Women represent almost half of the people living with HIV worldwide. Although social discrimination has been recognized as a major obstacle to HIV prevention, few empirical studies have examined the effects of sexism on women's HIV sexual risk behaviors. We analyzed data collected from an ethnically diverse sample of 754 women attending family planning clinics in the San Francisco Bay Area. A majority of respondents reported lifetime experiences of sexism (e.g., 94% reported sexual harassment). Structural equation modeling results demonstrated that experiences of sexism and reports of recent unprotected sex with a primary or a secondary sexual partner were linked through psychological distress and difficult sexual situations. Our results suggest the need to develop HIV prevention strategies for women that address two mechanisms-psychological distress and difficult sexual situations-that link social discrimination to women's sexual risk for HIV.

  4. Electric Power Monthly, August 1990. [Glossary included

    Energy Technology Data Exchange (ETDEWEB)

    1990-11-29

    The Electric Power Monthly (EPM) presents monthly summaries of electric utility statistics at the national, Census division, and State level. The purpose of this publication is to provide energy decisionmakers with accurate and timely information that may be used in forming various perspectives on electric issues that lie ahead. Data includes generation by energy source (coal, oil, gas, hydroelectric, and nuclear); generation by region; consumption of fossil fuels for power generation; sales of electric power, cost data; and unusual occurrences. A glossary is included.

  5. Modular Robotics for Delivering On-Site contamination Sensors and Mapping Systems to Difficult-to-Access Locations

    Energy Technology Data Exchange (ETDEWEB)

    Geisinger, Joseph

    2001-05-21

    Presently, characterization operations are scheduled for thousands of facilities and pieces of equipment throughout DOE sites, each of which requires manual surveying with handheld instruments and manual record keeping. Such work, particularly in difficult-to-access-areas, results in significant amounts of worker exposure, long timelines and additional secondary waste generation. Therefore, a distinct need exists for remote tools that can quickly deploy sensors and automated contamination mapping systems into these areas.

  6. Ultrasonography-Guided Peripheral Intravenous Access: Regular Technique Versus Seldinger Technique in Patients with Difficult Vascular Access

    OpenAIRE

    2012-01-01

    We sought to compare ultrasonography (US)-guided peripheral intravenous (PIV) access by regular technique using standard length catheters with a Seldinger technique using 16-cm central venous catheters in a randomized trial of adult patients with difficult intravenous (IV) access. Patients were randomized into two groups: (1) An US-guided IV access obtained through a regular technique or (2) An US-guided IV access obtained through a Seldinger technique. Outcomes measured were IV access succes...

  7. GlideScope Video Laryngoscope for Difficult Intubation in Emergency Patients: a Quasi-Randomized Controlled Trial

    Directory of Open Access Journals (Sweden)

    Koorosh Ahmadi

    2015-12-01

    Full Text Available Macintosh direct laryngoscope has been the most widely used device for tracheal intubation. GlideScope video laryngoscope (GVL has been recently introduced as an alternative device for performing intubation; however, its validity in emergency settings has not been thoroughly evaluated. The aim of this study was to compare Macintosh direct laryngoscope versus GVL for emergency endotracheal intubation. This quasi-randomized clinical trial was performed on 97 patients referred to Imam Reza Hospital whom all needed emergency intubation in 2011. Patients were divided into two groups of the easy airway and difficult airway; intubation was performed for patients with direct laryngoscopy or GVL. Then, the patients were evaluated in terms of demographic characteristics, successful intubation rate and intubation time. Data was analyzed by SPSS software 16. There was no significant difference in demographic characteristics of the patients in both easy airway and difficult airway groups who intubated with direct laryngoscopy and GVL methods (P>0.05. In difficult airway group, a significant difference was found in successful intubation at the first attempt (60.9% vs. 87.5%; P=0.036, overall intubation time (32.7 ± 14.58 vs. 22.5±7.88; P<0.001 and first attempt intubation time (28.43 ± 12.51 vs. 21.48±7.8; P=0.001 between direct laryngoscopy and GVL. These variables were not significantly different between two methods in easy airway group. According to the results, GVL can be a useful alternative to direct laryngoscopy in emergency situations and especially in cases with a difficult airway.

  8. Evaluation of Fastrach Laryngeal Mask Airway as an Alternative to Fiberoptic Bronchoscope to Manage Difficult Airway: A Comparative Study

    Science.gov (United States)

    Shyam, Radhey; Sachan, Pushplata; Singh, Prithvi Kumar; Singh, Gyan Prakash; Bhatia, Vinod Kumar; Chandra, Girish; Singh, Dinesh

    2017-01-01

    Introduction Awake intubation via Fiberoptic Bronchoscope (FB) is the gold standard for management of difficult airway but patients had to face problems like oxygen desaturation, tachycardia, hypertension and anxiety due to awake state. This study was conducted to assess feasibility of Fastrach Laryngeal Mask Airway (FLMA) to manage difficult airway as a conduit for intubation as well as for ventilation. Materials and Methods After ethical approval and informed consent, 60 patients with difficult airway were randomly enrolled in FB group and FLMA group. In FB group, patients were sedated with midazolam/fentanyl. Airway anaesthetization of oropharynx was done with xylocaine spray and viscous and larynx and trachea by superior laryngeal nerve block and transtracheal block respectively. In FLMA group, initially patients were induced with propofol for FLMA insertion then succinylcholine was given for Tracheal Intubation (TI). The first TI attempt was done blindly via the FLMA and all subsequent attempts were performed with fiberoptic guidance. Haemodynamic monitoring was done during induction, intubation, immediately post insertion and there after at five minutes interval for 30 minutes. Results All patients in the FLMA group were successfully ventilated (100%). In both the groups 28 (93.33%) patients were successfully intubated. However, first/second/third attempt intubation rate in FLMA vs FB group was 15 (50%) vs 13 (43.3%), 8 (26.66%) vs 10 (33.33%) and 5 (16.66%) in both groups respectively. Patients in the FLMA group were more satisfied with their method of TI and had lesser complications (pmanagement of patients with difficult airways.

  9. Aortic and Mitral Valve Replacement Through a Single Transverse Aortotomy: A Useful Approach in Difficult Mitral Valve Exposure

    OpenAIRE

    Carmichael, Michael J.; Cooley, Denton A.; Favor, Arsenio S.

    1983-01-01

    Replacement of the mitral valve through a standard vertical left atriotomy in patients requiring both aortic and mitral valve replacement can be very difficult. This is especially true in patients who have undergone previous median sternotomy. Replacement of the mitral valve through the aortic root after excision of the aortic valve is described in two case reports. This is a convenient approach when traditional exposure of the mitral valve is impractical in patients requiring double valve re...

  10. Management of Difficult Airway With Laryngeal Mask in a Child With Mucopolysaccharidosis and Mitral Regurgitation: A Case Report

    Science.gov (United States)

    Ziyaeifard, Mohsen; Azarfarin, Rasoul; Ferasatkish, Rasoul; Dashti, Majid

    2014-01-01

    Introduction: Mucopolysaccharidoses (MPSs) are a group of heredity storage diseases, transmitted in an autosomal recessive manner, associated with the accumulation of glycosaminoglycans (GAGs) in various tissues and organs. The concerned patients have multiple concomitant hereditary anomalies. Considering the craniofacial abnormality in these patients, airway management may be difficult for anesthesiologists. In these patients, preanesthetic assessment is necessary and performed with the accurate assessment of airways, consisting of the physical exam and radiography, MRI or CT of head and neck. An anesthesiologist should set up a “difficult intubation set” with a flexible fiber-optic bronchoscope and also, it may be necessary to discuss with an ear-nose and throat (ENT) specialist if required, for unpredicted emergency situations. Case Presentation: In this case-report we presented a 2-year-old boy with known MPSs with psychomotor retardation, bilateral corneal opacities, impaired hearing and vision, inguinal hernia, severe mitral regurgitation, micrognathia, coarse facial feature, stiff and short neck and restricted mouth opening. He scheduled for left inguinal hernia repair surgery. Discussion: The patient’s difficult airway was managed successfully and the anesthesia of his surgical procedure had an uneventful course. PMID:25478534

  11. A longitudinal study of student-teacher relationship quality, difficult temperament, and risky behavior from childhood to early adolescence.

    Science.gov (United States)

    Rudasill, Kathleen Moritz; Reio, Thomas G; Stipanovic, Natalie; Taylor, Jennifer E

    2010-10-01

    This study examines the mediating role of student-teacher relationship quality (conflict and closeness) in grades 4, 5, and 6 on the relation between background characteristics, difficult temperament at age 4 1/2 and risky behavior in 6th grade. The longitudinal sample of participants (N=1156) was from the NICHD Study of Early Child Care and Youth Development. Structural equation modeling was used to estimate paths from (a) background characteristics to student-teacher relationship quality and risky behavior, (b) temperament to student-teacher relationship quality and risky behavior, and (c) student-teacher relationship quality to risky behavior. Findings indicate that students' family income, gender, receipt of special services, and more difficult temperament were associated with risky behavior. In addition, student-teacher conflict was a mediator. Students with more difficult temperaments were more likely to report risky behavior and to have conflict in their relationships with teachers. More conflict predicted more risky behavior. Closer student-teacher relationships were associated with less risky behavior. Results suggest negative relationships, specifically student-teacher relationships, may increase the risk that certain adolescents will engage in risky behavior.

  12. Validation of modified Mallampati test with addition of thyromental distance and sternomental distance to predict difficult endotracheal intubation in adults

    Directory of Open Access Journals (Sweden)

    Bhavdip Patel

    2014-01-01

    Full Text Available Background and Aims: Intubation is often a challenge for anaesthesiologists. Many parameters assist to predict difficult intubation. The present study was undertaken to assess the validity of different parameters in predicting difficult intubation for general anaesthesia (GA in adults and effect of combining the parameters on the validity. Methods: The anaesthesiologist assessed oropharynx of 135 adult patients. Modified Mallampati test (MMT was used and the thyromental distance (TMD and sternomental distances (SMD for each of the patients were also measured. The Cormack and Lehane laryngoscopic grading was assessed following laryngoscopy. The validity parameters such as sensitivity, specificity, false positive and negatives values, positive and negative predictive values were calculated. The effect of combining different measurements on the validity was also studied. Univariate analysis was performed using the parametric method. Results: The study group comprised of 135 patients. The sensitivity and specificity of MMT were 28.6% and 93%, respectively. The TMD (<6.5 CM had sensitivity and specificity of 100% and 75.8%, respectively. The SMD (<12.5 CM had sensitivity and specificity of 91% and 92.7%, respectively. Combination of MMT grading and TMD and SMD measurements increased the validity (sensitivity of 100% and specificity of 92.7%. Conclusion: MMT had high specificity. The validity of combination of MMT, SMD and TMD as compared to MMT alone was very high in predicting difficult intubation in adult patients. All parameters should be used in assessing an adult patient for surgery under GA.

  13. Tracheal intubation in patients with anticipated difficult airway using Boedeker intubation forceps and McGrath videolaryngoscope

    DEFF Research Database (Denmark)

    Strøm, C; Barnung, S; Kristensen, M S

    2015-01-01

    BACKGROUND: Videolaryngoscopes with sharp angulated blades improve the view of the vocal cords but this does not necessarily result in higher success rates of intubation The aim of this study was to evaluate the efficacy of using Boedeker intubation forceps in conjunction with McGrath Series 5 Vi...... by using a styletted tube. CONCLUSION(S): Most patients with anticipated difficult intubation can be successfully intubated with Boedeker intubation forceps and MVL. However, endotracheal tube placement failed in 3/25 patients despite a good laryngeal view.......BACKGROUND: Videolaryngoscopes with sharp angulated blades improve the view of the vocal cords but this does not necessarily result in higher success rates of intubation The aim of this study was to evaluate the efficacy of using Boedeker intubation forceps in conjunction with McGrath Series 5...... Videolaryngoscope (MVL) in patients with predictors for difficult intubation. METHODS: The study was conducted at the Department of Anaesthesia, Copenhagen University Hospital from September to December 2013. Patients with one or more predictors of difficult intubation scheduled for general anaesthesia were...

  14. 3D seismic experiment in difficult area in Japan; Kokunai nanchiiki ni okeru sanjigen jishin tansa jikken

    Energy Technology Data Exchange (ETDEWEB)

    Minegishi, M.; Nakagami, K.; Tanaka, H. [Japan National Oil Corp., Tokyo (Japan). Technology Research Center

    1997-05-27

    Difficult area in this context means an exploration-difficult area supposed to store oil/gas but retarded in exploration for the lack of knowledge about the geological structure due to poor quality of available seismic survey records. Discussed in this paper is a survey conducted into an area covering the southern part of Noshiro-shi, Akita-ken, and Yamamoto-cho, Yamamoto-gun, Akita-ken. An area size suitable for data collection at a target depth of 2500m is determined using an interpretation structure compiled on the basis of available well data and 2D seismic survey data. The plan for siting shock points and receiving points is modified case by case as restrictive factors come to the surface (resulting from the complicated hilly terrain, presence of pipes for agricultural water, etc.). The peculiarities of seismic waves in the terrain are studied through the interpretation of the available well data and 2D seismic survey data for the construction of a 3D velocity model for the confirmation of the appropriateness of the plan for siting shock points and receiving points. Efforts are exerted through enhanced coordination with the contractor to acquire data so that a technologically best design may be won within the limits of the budget. The quality of the data obtained from this experiment is in general better than those obtained from previous experiments, yet many problems remain to be settled in future studies about exploration-difficult areas. 4 refs., 4 figs., 1 tab.

  15. Operant Conditioning for Special Educators.

    Science.gov (United States)

    Pedrini, Bonnie C.; Pedrini, D. T.

    The paper briefly explains operant conditioning as it pertains to special educators. Operant conditioning is thought to be an efficient method for modifying student behavior. Using the B. F. Skinner frame of reference, operant conditioning is said to include behavior modification and therapy, programed instruction, and computer assisted and…

  16. Including the Excluded: One School for All.

    Science.gov (United States)

    EFA 2000 Bulletin, 1998

    1998-01-01

    This issue of "EFA 2000" focuses on the theme of inclusive education, i.e., including children with disabilities in general education classrooms. The cover story discusses a 1995 UNESCO survey of 63 countries that showed that integration of children with disabilities in regular schools is a declared policy in almost every country.…

  17. 47 CFR 65.820 - Included items.

    Science.gov (United States)

    2010-10-01

    ... 47 Telecommunication 3 2010-10-01 2010-10-01 false Included items. 65.820 Section 65.820 Telecommunication FEDERAL COMMUNICATIONS COMMISSION (CONTINUED) COMMON CARRIER SERVICES (CONTINUED) INTERSTATE RATE...) Cash working capital. The average amount of investor-supplied capital needed to provide funds for...

  18. Nuclear Chemistry: Include It in Your Curriculum.

    Science.gov (United States)

    Atwood, Charles H.; Sheline, R. K.

    1989-01-01

    Some of the topics that might be included in a nuclear chemistry section are explored. Offers radioactivity, closed shells in nuclei, energy of nuclear processes, nuclear reactions, and fission and fusion as topics of interest. Provided are ideas and examples for each. (MVL)

  19. Musculoskeletal ultrasound including definitions for ultrasonographic pathology

    DEFF Research Database (Denmark)

    Wakefield, RJ; Balint, PV; Szkudlarek, Marcin

    2005-01-01

    Ultrasound (US) has great potential as an outcome in rheumatoid arthritis trials for detecting bone erosions, synovitis, tendon disease, and enthesopathy. It has a number of distinct advantages over magnetic resonance imaging, including good patient tolerability and ability to scan multiple joint...

  20. An acoustic finite element including viscothermal effects

    NARCIS (Netherlands)

    Nijhof, M.J.J.; Wijnant, Y.H.; Boer, de A.

    2007-01-01

    In acoustics it is generally assumed that viscous- en thermal boundary layer effects play a minor role in the propagation of sound waves. Hence, these effects are neglected in the basic set of equations describing the sound field. However, for geometries that include small confinements of air or thi

  1. Numerical simulation of spark ignition including ionization

    NARCIS (Netherlands)

    Thiele, M; Selle, S; Riedel, U; Warnatz, J; Maas, U

    2000-01-01

    A detailed understanding of the processes associated Midi spark ignition, as a first step during combustion, is of great importance fur clean operation of spark ignition engines. In the past 10 years. a growing concern for environmental protection, including low emission of pollutants, has increased

  2. Conditional Dicer substrate formation via shape and sequence transduction with small conditional RNAs.

    Science.gov (United States)

    Hochrein, Lisa M; Schwarzkopf, Maayan; Shahgholi, Mona; Yin, Peng; Pierce, Niles A

    2013-11-20

    RNA interference (RNAi) mediated by small interfering RNAs (siRNAs) enables knockdown of a gene of choice, executing the logical operation: silence gene Y. The fact that the siRNA is constitutively active is a significant limitation, making it difficult to confine knockdown to a specific locus and time. To achieve spatiotemporal control over silencing, we seek to engineer small conditional RNAs (scRNAs) that mediate 'conditional RNAi' corresponding to the logical operation: if gene X is transcribed, silence independent gene Y. By appropriately selecting gene X, knockdown of gene Y could then be restricted in a tissue- and time-specific manner. To implement the logic of conditional RNAi, our approach is to engineer scRNAs that, upon binding to mRNA 'detection target' X, perform shape and sequence transduction to form a Dicer substrate targeting independent mRNA 'silencing target' Y, with subsequent Dicer processing yielding an siRNA targeting mRNA Y for destruction. Toward this end, here we design and experimentally validate diverse scRNA mechanisms for conditional Dicer substrate formation. Test tube studies demonstrate strong OFF/ON conditional response, with at least an order of magnitude increase in Dicer substrate production in the presence of the cognate mRNA detection target. By appropriately dimensioning and/or chemically modifying the scRNAs, only the product of signal transduction, and not the reactants or intermediates, is efficiently processed by Dicer, yielding siRNAs. These mechanism studies explore diverse design principles for engineering scRNA signal transduction cascades including reactant stability vs metastability, catalytic vs noncatalytic transduction, pre- vs post-transcriptional transduction, reactant and product molecularity, and modes of molecular self-assembly and disassembly.

  3. A Difficult Decision

    Institute of Scientific and Technical Information of China (English)

    2009-01-01

    The financial outlook began to look a bit more optimistic in September,as some economic indicators,such as the DOW Jones Industrial Average and the prices of physical assets,showed signs of recovery one year after the outbreak of the financial tsunami triggered by the bankruptcy of Lehman Brothers.But does the numeric

  4. A Difficult Diagnosis

    DEFF Research Database (Denmark)

    Primholdt, Nina; Primdahl, Jette; Hendricks, Oliver

    2017-01-01

    to day, and how they meet the challenges they face in relation to their disease. METHODS: The study was based on a qualitative research design and consisted of semi-structured interviews with men diagnosed with AS. The men were recruited from a rheumatological hospital in Denmark. The study's theoretical...... framework was grounded in critical psychology, and the analysis was based on Kvale and Brinkmann's meaning condensation. RESULTS: The five men interviewed were 21-37 years old. At the time of the interview, the participants had been diagnosed with AS for an average of 2.6 years, with an average time from...... whose jobs involved hard physical work. Copyright © 2016 John Wiley & Sons, Ltd....

  5. Difficult marketing; Schwierige Vermarktung

    Energy Technology Data Exchange (ETDEWEB)

    Rentzing, Sascha

    2013-02-15

    With the new edition of the Renewable Energy Law (EEG) at 1st January 2012, the market premium model becomes effective in order to implement the green electricity into the electricity market better. With this, the operators of photovoltaic power plants switched from the fixed EEG compensation for electricity to direct marketing. The market premium model provides that only 90% of the power generated by large photovoltaic power plants on roofs of buildings are compensated via EEG corresponding to 0.15 Euro/kWh. The remaining 10% is compensated only with 0.045 Euro/kWh which complies with the actual stock exchange value. If one is not very happy with this solution, one has to consume the excess power by its own or to sell the excess power to third parties. The own consumption would be the easier solution. But the own consumption is usually not possible because the most large photovoltaic power plants are installed on roofs of commercial and public buildings. Consequently, the operators of these photovoltaic power plants have to sell the excess power to third parties. This is associated with many imponderables and additional costs.

  6. A difficult encounter

    DEFF Research Database (Denmark)

    Martinsen, Dorte Sindbjerg; Vasev, Nikolay Rumenov

    2015-01-01

    This article examines the institutional output and preliminary outcome of the EU Patients' Rights Directive in two health care models: the Beveridge and Bismarck models in Denmark and Bulgaria, respectively. The study applies a most dissimilar system design to explain a similar transposition outp...

  7. Difficult Decisions: Euthanasia.

    Science.gov (United States)

    Parakh, Jal S.; Slesnick, Irwin L.

    1992-01-01

    Focuses on the moral arguments for and against the controversial topic of voluntary active euthanasia. Discusses the question of legalization and decriminalization of the practice. Provides a student worksheet with questions to stimulate discussion on the issue. (MDH)

  8. [Biophysical Characterization of Biopharmaceuticals, Including Antibody Drugs].

    Science.gov (United States)

    Uchiyama, Susumu

    2016-01-01

    Biopharmaceuticals, including antibody drugs, are now popular because of their high specificity with low adverse effects, especially in the treatment of cancer and autoimmune diseases. However, because the active pharmaceutical ingredients of biopharmaceuticals are proteins, biophysical characterization of these therapeutic proteins should be required. In this manuscript, methods of chemical and physical characterization of therapeutic proteins are described. In terms of chemical characterization, analysis of chemical modifications of the constituent amino acids is explained. Physical characterization includes higher order structural analysis and assessment of protein aggregates. Quantification methods of aggregates with different sizes, recently encouraged by the U.S. Food and Drug Administration (FDA), are introduced. As for the stability of therapeutic proteins, the importance of chemical and physical stability is explained. Finally, the contribution of colloidal and structural stability to the production of an antibody drug less prone to aggregation is introduced.

  9. SKIRT: Stellar Kinematics Including Radiative Transfer

    Science.gov (United States)

    Baes, Maarten; Dejonghe, Herwig; Davies, Jonathan

    2011-09-01

    SKIRT is a radiative transfer code based on the Monte Carlo technique. The name SKIRT, acronym for Stellar Kinematics Including Radiative Transfer, reflects the original motivation for its creation: it has been developed to study the effects of dust absorption and scattering on the observed kinematics of dusty galaxies. In a second stage, the SKIRT code was extended with a module to self-consistently calculate the dust emission spectrum under the assumption of local thermal equilibrium. This LTE version of SKIRT has been used to model the dust extinction and emission of various types of galaxies, as well as circumstellar discs and clumpy tori around active galactic nuclei. A new, extended version of SKIRT code can perform efficient 3D radiative transfer calculations including a self-consistent calculation of the dust temperature distribution and the associated FIR/submm emission with a full incorporation of the emission of transiently heated grains and PAH molecules.

  10. Face relighting from a single image under arbitrary unknown lighting conditions.

    Science.gov (United States)

    Wang, Yang; Zhang, Lei; Liu, Zicheng; Hua, Gang; Wen, Zhen; Zhang, Zhengyou; Samaras, Dimitris

    2009-11-01

    In this paper, we present a new method to modify the appearance of a face image by manipulating the illumination condition, when the face geometry and albedo information is unknown. This problem is particularly difficult when there is only a single image of the subject available. Recent research demonstrates that the set of images of a convex Lambertian object obtained under a wide variety of lighting conditions can be approximated accurately by a low-dimensional linear subspace using a spherical harmonic representation. Moreover, morphable models are statistical ensembles of facial properties such as shape and texture. In this paper, we integrate spherical harmonics into the morphable model framework by proposing a 3D spherical harmonic basis morphable model (SHBMM). The proposed method can represent a face under arbitrary unknown lighting and pose simply by three low-dimensional vectors, i.e., shape parameters, spherical harmonic basis parameters, and illumination coefficients, which are called the SHBMM parameters. However, when the image was taken under an extreme lighting condition, the approximation error can be large, thus making it difficult to recover albedo information. In order to address this problem, we propose a subregion-based framework that uses a Markov random field to model the statistical distribution and spatial coherence of face texture, which makes our approach not only robust to extreme lighting conditions, but also insensitive to partial occlusions. The performance of our framework is demonstrated through various experimental results, including the improved rates for face recognition under extreme lighting conditions.

  11. Rotor assembly including superconducting magnetic coil

    Energy Technology Data Exchange (ETDEWEB)

    Snitchler, Gregory L. (Shrewsbury, MA); Gamble, Bruce B. (Wellesley, MA); Voccio, John P. (Somerville, MA)

    2003-01-01

    Superconducting coils and methods of manufacture include a superconductor tape wound concentrically about and disposed along an axis of the coil to define an opening having a dimension which gradually decreases, in the direction along the axis, from a first end to a second end of the coil. Each turn of the superconductor tape has a broad surface maintained substantially parallel to the axis of the coil.

  12. Electric power monthly, September 1990. [Glossary included

    Energy Technology Data Exchange (ETDEWEB)

    1990-12-17

    The purpose of this report is to provide energy decision makers with accurate and timely information that may be used in forming various perspectives on electric issues. The power plants considered include coal, petroleum, natural gas, hydroelectric, and nuclear power plants. Data are presented for power generation, fuel consumption, fuel receipts and cost, sales of electricity, and unusual occurrences at power plants. Data are compared at the national, Census division, and state levels. 4 figs., 52 tabs. (CK)

  13. Basic infertility including polycystic ovary syndrome.

    Science.gov (United States)

    Brassard, Maryse; AinMelk, Youssef; Baillargeon, Jean-Patrice

    2008-09-01

    Infertility in women has many possible causes and must be approached systematically. The most common cause of medically treatable infertility is the polycystic ovary syndrome (PCOS). This syndrome is common in young women and is the cause of anovulatory infertility in 70% of cases. It is therefore an important condition to screen and manage in primary care medical settings. In the past 10 years, insulin sensitization with weight loss or metformin has been shown to be a safe and effective treatment for PCOS infertility that eliminates the risk of multiple pregnancy and may reduce the risk of early pregnancy loss as compared with ovulation-inductor drugs. The authors believe metformin should be considered as first-line therapy because it has the advantage to allow for normal single ovulation, for reduced early pregnancy loss, and, most importantly, lifestyle modifications and weight loss before pregnancy. Losing weight not only improves fertility but also reduces adverse pregnancy outcomes associated with obesity.

  14. Maximum-entropy closure of hydrodynamic moment hierarchies including correlations.

    Science.gov (United States)

    Hughes, Keith H; Burghardt, Irene

    2012-06-07

    Generalized hydrodynamic moment hierarchies are derived which explicitly include nonequilibrium two-particle and higher-order correlations. The approach is adapted to strongly correlated media and nonequilibrium processes on short time scales which necessitate an explicit treatment of time-evolving correlations. Closure conditions for the extended moment hierarchies are formulated by a maximum-entropy approach, generalizing related closure procedures for kinetic equations. A self-consistent set of nonperturbative dynamical equations are thus obtained for a chosen set of single-particle and two-particle (and possibly higher-order) moments. Analytical results are derived for generalized Gaussian closures including the dynamic pair distribution function and a two-particle correction to the current density. The maximum-entropy closure conditions are found to involve the Kirkwood superposition approximation.

  15. Drug delivery device including electrolytic pump

    KAUST Repository

    Foulds, Ian G.

    2016-03-31

    Systems and methods are provided for a drug delivery device and use of the device for drug delivery. In various aspects, the drug delivery device combines a “solid drug in reservoir” (SDR) system with an electrolytic pump. In various aspects an improved electrolytic pump is provided including, in particular, an improved electrolytic pump for use with a drug delivery device, for example an implantable drug delivery device. A catalytic reformer can be incorporated in a periodically pulsed electrolytic pump to provide stable pumping performance and reduced actuation cycle.

  16. Inlet Guide Vane Wakes Including Rotor Effects

    Science.gov (United States)

    Johnston, R. T.; Fleeter, S.

    2001-02-01

    Fundamental experiments are described directed at the investigation of forcing functions generated by an inlet guide vane (IGV) row, including interactions with the downstream rotor, for application to turbomachine forced response design systems. The experiments are performed in a high-speed research fan facility comprised of an IGV row upstream of a rotor. IGV-rotor axial spacing is variable, with the IGV row able to be indexed circumferentially, thereby allowing measurements to be made across several IGV wakes. With an IGV relative Mach number of 0.29, measurements include the IGV wake pressure and velocity fields for three IGV-rotor axial spacings. The decay characteristics of the IGV wakes are compared to the Majjigi and Gliebe empirical correlations. After Fourier decomposition, a vortical-potential gust splitting analysis is implemented to determine the vortical and potential harmonic wake gust forcing functions both upstream and downstream of the rotor. Higher harmonics of the vortical gust component of the IGV wakes are found to decay at a uniform rate due to viscous diffusion.

  17. Including supplementary elements in a compositional biplot

    Science.gov (United States)

    Daunis-i-Estadella, J.; Thió-Henestrosa, S.; Mateu-Figueras, G.

    2011-05-01

    The biplot is a widely and powerful methodology used with multidimensional data sets to describe and display the relationships between observations and variables in an easy way. Compositional data are vectors with positive components, whose sum is constant because they represent a relative contribution of different parts to a whole; due to this property standard biplots cannot be performed with compositional data, instead of a previous transformation of the data is performed. In this paper, we extend the compositional biplot defined by Aitchison and Greenacre (2002), in order to include in the display supplementary elements which are not used in the definition of the compositional biplot. Different types of supplementary elements are considered: supplementary parts of the composition, supplementary continuous variables external to the composition, supplementary categorical variables and supplementary observations. The projection of supplementary parts of the composition is done by means of the equivalence of clr and lr biplots. The other supplementary projections are done by classical methodology. An application example with a real geological data is included.

  18. Feasibility of transient elastography versus real-time two-dimensional shear wave elastography in difficult-to-scan patients

    DEFF Research Database (Denmark)

    Staugaard, Benjamin; Christensen, Peer Brehm; Mössner, Belinda;

    2016-01-01

    BACKGROUND AND AIMS: Transient elastography (TE) is hampered in some patients by failures and unreliable results. We hypothesized that real time two-dimensional shear wave elastography (2D-SWE), the FibroScan XL probe, and repeated TE exams, could be used to obtain reliable liver stiffness...... skin-capsule distance (OR = 0.77, 95% CI 0.67-0.98). CONCLUSIONS: Transient elastography can be accomplished in nearly all patients by use of the FibroScan XL probe and repeated examinations. In difficult-to-scan patients, the feasibility of TE is superior to 2D-SWE....

  19. Clinical management and outcome of refractory asthma in the UK from the British Thoracic Society Difficult Asthma Registry.

    Science.gov (United States)

    Sweeney, Joan; Brightling, Chris E; Menzies-Gow, Andrew; Niven, Robert; Patterson, Chris C; Heaney, Liam G

    2012-08-01

    Refractory asthma represents a significant unmet clinical need. Data from a national online registry audited clinical outcome in 349 adults with refractory asthma from four UK specialist centres in the British Thoracic Society Difficult Asthma Network. At follow-up, lung function improved, with a reduction in important healthcare outcomes, specifically hospital admission, unscheduled healthcare visits and rescue courses of oral steroids. The most frequent therapeutic intervention was maintenance oral corticosteroids and most steroid sparing agents (apart from omalizumab) demonstrated minimal steroid sparing benefit. A significant unmet clinical need remains in this group, specifically a requirement for therapies which reduce systemic steroid exposure.

  20. A STUDY OF PREDICTION OF DIFFICULT INTUBATION USING MALLAMPATI AND WILSON SCORE CORRELATING WITH CORMACK LEHANE GRADING

    Directory of Open Access Journals (Sweden)

    Vaishali Chandrashekhar

    2015-06-01

    Full Text Available BACKGROUND : This study was carried out to evaluate usefulness of preoperative Mallampati & Wilson’s score grading as a predictor for difficult laryngoscopy & intubation . AIMS : To determine the accuracy of the modified Mallampati test and Wilson score for predicting difficult tracheal intubation and correlation with Cormack Lehane grading . METHODS : This prospective randomized cross sectional Study carried out in 200 patients , posted for surgical procedure under GA with ETT intubation. Preoperative airway assessment using Mallampati grading (MPG & Wilson score done. Conventional anesthesia t echnique followed. Cormack Lehane grading done at laryngoscopy & correlated with previous scores for each patient. RESULTS : A MPG of I/II was found in 140 patients (70% , while 60 patients (30% were class III/IV. 138 patients (69% had a Wilson score of 0 /1 , while 60(30% had a score of 2/3 and 2 patients (1% scored ≥4. One hundred & eighty patients (90% were classified as Cormack - Lehane grade I/II , while 20 patients (10% were considered grade III/IV. Of the 60 patients with a Wilson score of 2/3 , 6 cas es (10% two attempts were required and in 2 cases (3.3% in spite of more than two attempts intubation proved impossible with the conventional laryngoscope , articulated McCoy blade was used. Two patients with a Wilson score ≥4 were intubated with gum elas tic bougie , using articulated McCoy blade. Overall , out of 200 , in 6 patients (3% two attempts of intubation was required and 4 patients (2% intubation required the use of some kind of gadget other than conventional laryngoscope and more than 2 attempts. The correlation between the Cormack - Lehane classification and the number of endotracheal intubation attempts showed that of the 180 patients with I / II grade , 4 patients (1.3% two attempts were required. Of the 20 patients classified as Cormack - Lehane III/IV , 4 cases (20% intubation proved impossible with conventional technique. This