WorldWideScience

Sample records for blowout preventers

  1. Development of 3000 m Subsea Blowout Preventer Experimental Prototype

    Science.gov (United States)

    Cai, Baoping; Liu, Yonghong; Huang, Zhiqian; Ma, Yunpeng; Zhao, Yubin

    2017-12-01

    A subsea blowout preventer experimental prototype is developed to meet the requirement of training operators, and the prototype consists of hydraulic control system, electronic control system and small-sized blowout preventer stack. Both the hydraulic control system and the electronic system are dual-mode redundant systems. Each system works independently and is switchable when there are any malfunctions. And it significantly improves the operation reliability of the equipment.

  2. Development of an automatic subsea blowout preventer stack control system using PLC based SCADA.

    Science.gov (United States)

    Cai, Baoping; Liu, Yonghong; Liu, Zengkai; Wang, Fei; Tian, Xiaojie; Zhang, Yanzhen

    2012-01-01

    An extremely reliable remote control system for subsea blowout preventer stack is developed based on the off-the-shelf triple modular redundancy system. To meet a high reliability requirement, various redundancy techniques such as controller redundancy, bus redundancy and network redundancy are used to design the system hardware architecture. The control logic, human-machine interface graphical design and redundant databases are developed by using the off-the-shelf software. A series of experiments were performed in laboratory to test the subsea blowout preventer stack control system. The results showed that the tested subsea blowout preventer functions could be executed successfully. For the faults of programmable logic controllers, discrete input groups and analog input groups, the control system could give correct alarms in the human-machine interface. Copyright © 2011 ISA. Published by Elsevier Ltd. All rights reserved.

  3. Application of Bayesian networks in quantitative risk assessment of subsea blowout preventer operations.

    Science.gov (United States)

    Cai, Baoping; Liu, Yonghong; Liu, Zengkai; Tian, Xiaojie; Zhang, Yanzhen; Ji, Renjie

    2013-07-01

    This article proposes a methodology for the application of Bayesian networks in conducting quantitative risk assessment of operations in offshore oil and gas industry. The method involves translating a flow chart of operations into the Bayesian network directly. The proposed methodology consists of five steps. First, the flow chart is translated into a Bayesian network. Second, the influencing factors of the network nodes are classified. Third, the Bayesian network for each factor is established. Fourth, the entire Bayesian network model is established. Lastly, the Bayesian network model is analyzed. Subsequently, five categories of influencing factors, namely, human, hardware, software, mechanical, and hydraulic, are modeled and then added to the main Bayesian network. The methodology is demonstrated through the evaluation of a case study that shows the probability of failure on demand in closing subsea ram blowout preventer operations. The results show that mechanical and hydraulic factors have the most important effects on operation safety. Software and hardware factors have almost no influence, whereas human factors are in between. The results of the sensitivity analysis agree with the findings of the quantitative analysis. The three-axiom-based analysis partially validates the correctness and rationality of the proposed Bayesian network model. © 2012 Society for Risk Analysis.

  4. Dynamic Simulation Analysis of Key Components of Special Transport Vehicle for Blowout Prevention Equipment Based on ADAMS

    Science.gov (United States)

    Yang, Huixiang; Zhao, Junpeng; Jiang, Dawei; Song, Guowa; Zhang, Bangcheng

    2017-10-01

    The mounted structure is a part of the whole vehicle, and determines the rationality of the vehicle design. First of all, through the ADAMS and CATIA data transmission interface, the use of CATIA to create a special model of the blowout prevention equipment, the model is imported into ADAMS; Secondly, ADAMS related settings in the definition of force, boundary conditions, and calculate the time step and other related parameters. Finally, the simulation results of the flipping mechanism are obtained by dynamic simulation analysis. The results show that the design of the truck loading structure meets the actual performance requirements.

  5. Preventing Tire Blowout Accidents: A Perspective on Factors Affecting Drivers’ Intention to Adopt Tire Pressure Monitoring System

    Directory of Open Access Journals (Sweden)

    Kai-Ying Chen

    2018-04-01

    Full Text Available The aim of this study is to explore whether risk perception or anticipated regret is responsible for intensifying the participants’ intention to adopt a tire pressure monitoring system (TPMS to prevent a tire-related accident, and whether the optimism bias has a moderator effect between risk perception/anticipated regret and intention. With 274 valid questionnaires and PLS-SEM (partial least squares structural equation modeling analysis, the results indicate a significant positive relationship between risk perception and intention to adopt TPMS, but not between anticipated regret and intention. The moderator effect of optimism bias on risk perception and anticipated regret is not found in the model. The findings will prove useful for public service advertising campaigns by providing a basis for an understanding of the role of cognitive and emotional factors in tire-blowout accident prevention, thereby increasing the motivation for drivers in Taiwan to take advantage of the protection afforded them by using TPMS.

  6. Control of an innovative super-capacitor-powered shape-memory-alloy actuated accumulator for blowout preventer

    Science.gov (United States)

    Chen, Jian; Li, Peng; Song, Gangbing; Ren, Zhang

    2017-01-01

    The design of a super-capacitor-powered shape-memory-alloy (SMA) actuated accumulator for blowout preventer (BOP) presented in this paper featured several advantages over conventional hydraulic accumulators including instant large current drive, quick system response and elimination of need for the pressure conduits. However, the mechanical design introduced two challenges, the nonlinear nature of SMA actuators and the varying voltage provided by a super capacitor, for control system design. A cerebellar model articulation controller (CMAC) feedforward plus PID controller was developed with the aim of compensation for these adverse effects. Experiments were conducted on a scaled down model and experimental results show that precision control can be achieved with the proposed configurations and algorithms.

  7. Offshore Blowouts, Causes and Trends

    Energy Technology Data Exchange (ETDEWEB)

    Holand, P.

    1996-02-01

    The main objective of this doctoral thesis was to establish an improved design basis for offshore installations with respect to blowout risk analyses. The following sub objectives are defined: (1) Establish an offshore blowout database suitable for risk analyses, (2) Compare the blowout risk related to loss of lives with the total offshore risk and risk in other industries, (3) Analyse blowouts with respect to parameters that are important to describe and quantify blowout risk that has been experienced to be able to answer several questions such as under what operations have blowouts occurred, direct causes, frequency of occurrence etc., (4) Analyse blowouts with respect to trends. The research strategy applied includes elements from both survey strategy and case study strategy. The data are systematized in the form of a new database developed from the MARINTEK database. Most blowouts in the analysed period occurred during drilling operations. Shallow gas blowouts were more frequent than deep blowouts and workover blowouts occurred more often than deep development drilling blowouts. Relatively few blowouts occurred during completion, wireline and normal production activities. No significant trend in blowout occurrences as a function of time could be observed, except for completion blowouts that showed a significantly decreasing trend. But there were trends regarding some important parameters for risk analyses, e.g. the ignition probability has decreased and diverter systems have improved. Only 3.5% of the fatalities occurred because of blowouts. 106 refs., 51 figs., 55 tabs.

  8. Simple Repair of a Blow-Out Fracture by the Modified Caldwell-Luc Approach.

    Science.gov (United States)

    Park, Min Woo; Kim, Soung Min; Amponsah, Emmanuel Kofi; Lee, Suk Keun

    2015-06-01

    Here we report a patient with a blow-out fracture of the orbital floor that was treated by an intraoral transmaxillary approach. This 38-year-old man suffered a sudden blow to the periorbital area, which caused prolapse of the orbital contents into the maxillary sinus. The modified Caldwell-Luc approach was used to repair the orbital blow-out fracture and the maxillary sinus during was packed with Frazin gauze for 7 days to prevent recurrence of the prolapse. This was an easy and minimally invasive technique for the management of a blow-out fracture of the orbital floor.

  9. Risk assessment for SAGD well blowouts

    Energy Technology Data Exchange (ETDEWEB)

    Worth, D.; Alhanati, F.; Lastiwka, M. [C-FER Technologies, Edmonton, AB (Canada); Crepin, S. [Petrocedeno, Caracas (Venezuela)

    2008-10-15

    This paper discussed a steam assisted gravity drainage (SAGD) pilot project currently being conducted in Venezuela's Orinoco Belt. A risk assessment was conducted as part of the pilot program in order to evaluate the use of single barrier completions in conjunction with a blowout response plan. The study considered 3 options: (1) an isolated double barrier completion with a downhole safety valve (DHSV) in the production tubing string and a packer in the production casing annulus; (2) a partially isolated completion with no DHSV and a packer in the production casing annulus; and (3) an open single barrier completion with no additional downhole barriers. A reservoir model was used to assess the blowout flowing potential of SAGD well pairs. The probability of a blowout was estimated using fault tree analysis techniques. Risk was determined for various blowout scenarios, including blowouts during normal and workover operations, as well as blowouts through various flow paths. Total risk for each completion scenario was also determined at 3 different time periods within the production life of the well pair. The possible consequences of a blowout were assessed using quantitative consequence models. Results of the study showed that environmental and economic risks were much higher for the open completion technique. Higher risks were also associated with the earlier life of the completion strings. 20 refs., 3 tabs., 19 figs.

  10. 16 CFR 1507.6 - Burnout and blowout.

    Science.gov (United States)

    2010-01-01

    ... 16 Commercial Practices 2 2010-01-01 2010-01-01 false Burnout and blowout. 1507.6 Section 1507.6... FIREWORKS DEVICES § 1507.6 Burnout and blowout. The pyrotechnic chamber in fireworks devices shall be constructed in a manner to allow functioning in a normal manner without burnout or blowout. ...

  11. Antiadhesive effect of mixed solution of sodium hyaluronate and sodium carboxymethylcellulose after blow-out fracture repair.

    Science.gov (United States)

    Lee, Jong Mi; Baek, Sehyun

    2012-11-01

    Treatment of blow-out fractures is aimed at the prevention of permanent diplopia and cosmetically unacceptable enophthalmos. Porous polyethylene sheets are one of the most common alloplastic implants for blow-out fracture repair. Because adhesion between the porous polyethylene and the orbital soft tissue can result in restrictions of ocular motility, prevention of postoperative adhesion is important in the reconstruction of blow-out fractures. The purpose of this study was to find out the effect of the mixed solution of sodium hyaluronate and sodium carboxymethylcellulose (HACMC) on postoperative adhesion in blow-out fracture repair in an animal model.Twenty-four New Zealand white rabbits were used. An 8-mm defect was made in the maxillary sinuses including the bone and mucosa. A 10-mm porous polyethylene sheet (Medpor; Porex Surgical Inc., Newnan, GA) was inserted in to the defect. The rabbits were divided into a control group and a HACMC group. In the HACMC group, HACMC solution was instilled onto the surface of the implant and then the implant was inserted. The implants were harvested at 1, 2, 4, and 8 weeks after surgery (3 implants each period). Hematoxylin and eosin, Masson trichrome, and CD31 (platelet endothelial cell adhesion molecule-1) stains were performed for evaluation of inflammation, fibrosis, and vascularization.Inflammation appeared less severe in the HACMC group, but the difference between the 2 groups was not statistically significant. The degree of fibrosis was more severe in the control group. There were significant differences in the degree of fibrosis between the 2 groups 4 and 8 weeks after surgery (P = 0.046). The amount of vascularization was similar in both groups.The HACMC solution seemed to be effective for reducing postoperative adhesion in reconstruction of blow-out fractures in a rabbit model. Our results suggest that the application of HACMC solution could be an effective adjunct for the repair of trap-door fractures or revision

  12. Gastric blow-out: komplikation efter fedmekirurgi

    DEFF Research Database (Denmark)

    Torrens, Ayoe Sabrina; Born, Pernille Wolder; Naver, Lars

    2009-01-01

    with computed tomography and acute surgical treatment is vital as the complication can lead to gastric necrosis, pancreatitis, biliary stasis, sepsis and multi-organ failure within a very short time. Prompt contact to specialized surgeons is advocated. Udgivelsesdato: 2009-Nov......Laparoscopic gastric bypass is the most common type of surgery for morbid obesity in Denmark. The most frequent late complications after gastric bypass are ulcer, internal hernia and stenosis. Two cases of stenosis of the bileopancreatic limb with gastric blow-out are described. Urgent diagnosis...

  13. Gastric blow-out: komplikation efter fedmekirurgi

    DEFF Research Database (Denmark)

    Torrens, Ayoe Sabrina; Born, Pernille Wolder; Naver, Lars

    2009-01-01

    Laparoscopic gastric bypass is the most common type of surgery for morbid obesity in Denmark. The most frequent late complications after gastric bypass are ulcer, internal hernia and stenosis. Two cases of stenosis of the bileopancreatic limb with gastric blow-out are described. Urgent diagnosis ...... with computed tomography and acute surgical treatment is vital as the complication can lead to gastric necrosis, pancreatitis, biliary stasis, sepsis and multi-organ failure within a very short time. Prompt contact to specialized surgeons is advocated. Udgivelsesdato: 2009-Nov...

  14. Surgical timing of the orbital "blowout" fracture

    DEFF Research Database (Denmark)

    Damgaard, Olaf Ehlers; Larsen, Christian Grønhøj; Felding, Ulrik Ascanius

    2016-01-01

    Objective: The orbital blowout fracture is a common facial injury, carrying with it a risk of visual impairment and undesirable cosmetic results unless treated properly. Optimal timing of the surgical treatment is still a matter of debate. We set out to determine whether a meta-analysis would bring......). Patients were evaluated for diplopia and enophthalmos.  Review Methods: We followed the statements of PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-analyses). Pooled odds ratios were estimated with the fixed effects method of Mantel-Haenszel.  Results: We identified 5 studies...

  15. Inline Repair of Blowouts During Laser Welding

    Science.gov (United States)

    Hansen, K. S.; Olsen, F. O.; Kristiansen, M.; Madsen, O.

    In a current laser welding production process of components of stainless steel, a butt joint configuration may lead to failures in the form of blowouts, causing an unacceptable welding quality. A study to improve the laser welding process was performed with the aim of solving the problem by designing a suitable pattern of multiple small laser spots rather than a single spot in the process zone. The blowouts in the process are provoked by introducing small amounts of zinc powder in the butt joint. When the laser heats up the zinc, this rapidly evaporates and expands, leaving the melt pool to be blown away locally. Multiple spot pattern designs are tested. Spot patterns are produced by applying diffractive optics to a beam from a single mode fiber laser. Results from welding while applying spot patterns both with and without trailing spots are presented. Data showing the power ratio between a trailing spot and two main spots as a function of spot distance is also presented. The results of the study show that applying multiple spots in the welding process may improve the process stability when welding materials with small impurities in the form of zinc particles.

  16. Effects of Various Blowout Panel Configurations on the Structural Response of LANL Building 16-340 to Internal Explosions

    Energy Technology Data Exchange (ETDEWEB)

    Wilke, Jason P. [New Mexico Inst. of Mining and Technology, Socorro, NM (United States)

    2005-09-01

    The risk of accidental detonation is present whenever any type of high explosives processing activity is performed. These activities are typically carried out indoors to protect processing equipment from the weather and to hide possibly secret processes from view. Often, highly strengthened reinforced concrete buildings are employed to house these activities. These buildings may incorporate several design features, including the use of lightweight frangible blowout panels, to help mitigate blast effects. These panels are used to construct walls that are durable enough to withstand the weather, but are of minimal weight to provide overpressure relief by quickly moving outwards and creating a vent area during an accidental explosion. In this study the behavior of blowout panels under various blast loading conditions was examined. External loadings from explosions occurring in nearby rooms were of primary interest. Several reinforcement systems were designed to help blowout panels resist failure from external blast loads while still allowing them to function as vents when subjected to internal explosions. The reinforcements were studied using two analytical techniques, yield-line analysis and modal analysis, and the hydrocode AUTODYN. A blowout panel reinforcement design was created that could prevent panels from being blown inward by external explosions. This design was found to increase the internal loading of the building by 20%, as compared with nonreinforced panels. Nonreinforced panels were found to increase the structural loads by 80% when compared to an open wall at the panel location.

  17. Fluid Mechanics of Lean Blowout Precursors in Gas Turbine Combustors

    Directory of Open Access Journals (Sweden)

    T. M. Muruganandam

    2012-03-01

    Full Text Available Understanding of lean blowout (LBO phenomenon, along with the sensing and control strategies could enable the gas turbine combustor designers to design combustors with wider operability regimes. Sensing of precursor events (temporary extinction-reignition events based on chemiluminescence emissions from the combustor, assessing the proximity to LBO and using that data for control of LBO has already been achieved. This work describes the fluid mechanic details of the precursor dynamics and the blowout process based on detailed analysis of near blowout flame behavior, using simultaneous chemiluminescence and droplet scatter observations. The droplet scatter method represents the regions of cold reactants and thus help track unburnt mixtures. During a precursor event, it was observed that the flow pattern changes significantly with a large region of unburnt mixture in the combustor, which subsequently vanishes when a double/single helical vortex structure brings back the hot products back to the inlet of the combustor. This helical pattern is shown to be the characteristic of the next stable mode of flame in the longer combustor, stabilized by double helical vortex breakdown (VBD mode. It is proposed that random heat release fluctuations near blowout causes VBD based stabilization to shift VBD modes, causing the observed precursor dynamics in the combustor. A complete description of the evolution of flame near the blowout limit is presented. The description is consistent with all the earlier observations by the authors about precursor and blowout events.

  18. Contemporary management of carotid blowout syndrome utilizing endovascular techniques.

    Science.gov (United States)

    Manzoor, Nauman F; Rezaee, Rod P; Ray, Abhishek; Wick, Cameron C; Blackham, Kristine; Stepnick, David; Lavertu, Pierre; Zender, Chad A

    2017-02-01

    To illustrate complex interdisciplinary decision making and the utility of modern endovascular techniques in the management of patients with carotid blowout syndrome (CBS). Retrospective chart review. Patients treated with endovascular strategies and/or surgical modalities were included. Control of hemorrhage, neurological, and survival outcomes were studied. Between 2004 and 2014, 33 patients had 38 hemorrhagic events related to head and neck cancer that were managed with endovascular means. Of these, 23 were localized to the external carotid artery (ECA) branches and five localized to the ECA main trunk; nine were related to the common carotid artery (CCA) or internal carotid artery (ICA), and one event was related to the innominate artery. Seven events related to the CCA/ICA or innominate artery were managed with endovascular sacrifice, whereas three cases were managed with a flow-preserving approach (covered stent). Only one patient developed permanent hemiparesis. In two of the three cases where the flow-preserving approach was used, the covered stent eventually became exposed via the overlying soft tissue defect, and definitive management using carotid revascularization or resection was employed to prevent further hemorrhage. In cases of soft tissue necrosis, vascularized tissues were used to cover the great vessels as applicable. The use of modern endovascular approaches for management of acute CBS yields optimal results and should be employed in a coordinated manner by the head and neck surgeon and the neurointerventionalist. 4. Laryngoscope, 2016 127:383-390, 2017. © 2016 The American Laryngological, Rhinological and Otological Society, Inc.

  19. Flame Color as a Lean Blowout Predictor

    Directory of Open Access Journals (Sweden)

    Rajendra R. Chaudhari

    2013-03-01

    Full Text Available The study characterizes the behavior of a premixed swirl stabilized dump plane combustor flame near its lean blow-out (LBO limit in terms of CH* chemiluminiscence intensity and observable flame color variations for a wide range of equivalence ratio, flow rates and degree of premixing (characterized by premixing length, Lfuel. LPG and pure methane are used as fuel. We propose a novel LBO prediction strategy based solely on the flame color. It is observed that as the flame approaches LBO, its color changes from reddish to blue. This observation is found to be valid for different levels of fuel-air premixing achieved by changing the available mixing length of the air and the fuel upstream of the dump plane although the flame dynamics were significantly different. Based on this observation, the ratio of the intensities of red and blue components of the flame as captured by a color CCD camera was used as a metric for detecting the proximity of the flame to LBO. Tests were carried out for a wide range of air flow rates and using LPG and CH4 as fuel. For all the operating conditions and both fuels tested, this ratio was found to monotonically decrease as LBO was approached. Moreover, the value of this ratio was within a small range close to LBO for all the cases investigated. This makes the ratio suitable as a metric for LBO detection at all levels of premixing.

  20. Stability Control of Vehicle Emergency Braking with Tire Blowout

    Directory of Open Access Journals (Sweden)

    Qingzhang Chen

    2014-01-01

    Full Text Available For the stability control and slowing down the vehicle to a safe speed after tire failure, an emergency automatic braking system with independent intellectual property is developed. After the system has received a signal of tire blowout, the automatic braking mode of the vehicle is determined according to the position of the failure tire and the motion state of vehicle, and a control strategy for resisting tire blowout additional yaw torque and deceleration is designed to slow down vehicle to a safe speed in an expected trajectory. The simulating test system is also designed, and the testing results show that the vehicle can be quickly stabilized and kept in the original track after tire blowout with the emergency braking system described in the paper.

  1. Serum albumin is an important prognostic factor for carotid blowout syndrome

    International Nuclear Information System (INIS)

    Lu Hsuehju; Chen Kuowei; Chen Minghuang; Tzeng Chenghwai; Chang Peter Muhsin; Yang Muhhwa; Chu Penyuan; Tai Shyhkuan

    2013-01-01

    Carotid blowout syndrome is a severe complication of head and neck cancer. High mortality and major neurologic morbidity are associated with carotid blowout syndrome with massive bleeding. Prediction of outcomes for carotid blowout syndrome patients is important for clinicians, especially for patients with the risk of massive bleeding. Between 1 January 2001 and 31 December 2011, 103 patients with carotid blowout syndrome were enrolled in this study. The patients were divided into groups with and without massive bleeding. Prognostic factors were analysed with proportional hazard (Cox) regressions for carotid blowout syndrome-related prognoses. Survival analyses were based on the time from diagnosis of carotid blowout syndrome to massive bleeding and death. Patients with massive bleeding were more likely to have hypoalbuminemia (albumin 1000 cells/μl, P=0.041) and hypoalbuminemia (P=0.010) were important to prognosis. Concurrent chemoradiotherapy (P=0.007), elevated lactate dehydrogenase (>250 U/l; P=0.050), local recurrence (P=0.022) and hypoalbuminemia (P=0.038) were related to poor prognosis in carotid blowout syndrome-related death. In multivariate analysis, best supportive care and hypoalbuminemia were independent factors for both carotid blowout syndrome-related massive bleeding (P=0.000) and carotid blowout syndrome-related death (P=0.013), respectively. Best supportive care and serum albumin are important prognostic factors in carotid blowout syndrome. It helps clinicians to evaluate and provide better supportive care for these patients. (author)

  2. Effects of Various Blowout Panel Configurations on the Structural Response of Los Alamos National Laboratory Building 16-340 to Internal Explosions

    Energy Technology Data Exchange (ETDEWEB)

    Wilke, Jason P. [New Mexico Inst. of Mining and Technology, Socorro, NM (United States)

    2005-09-01

    The risk of accidental detonation is present whenever any type of high explosives processing activity is performed. These activities are typically carried out indoors to protect processing equipment from the weather and to hide possibly secret processes from view. Often, highly strengthened reinforced concrete buildings are employed to house these activities. These buildings may incorporate several design features, including the use of lightweight frangible blowout panels, to help mitigate blast effects. These panels are used to construct walls that are durable enough to withstand the weather, but are of minimal weight to provide overpressure relief by quickly moving outwards and creating a vent area during an accidental explosion. In this study the behavior of blowout panels under various blast loading conditions was examined. External loadings from explosions occurring in nearby rooms were of primary interest. Several reinforcement systems were designed to help blowout panels resist failure from external blast loads while still allowing them to function as vents when subjected to internal explosions. The reinforcements were studied using two analytical techniques, yield-line analysis and modal analysis, and the hydrocode AUTODYN. A blowout panel reinforcement design was created that could prevent panels from being blown inward by external explosions. This design was found to increase the internal loading of the building by 20%, as compared with nonreinforced panels. Nonreinforced panels were found to increase the structural loads by 80% when compared to an open wall at the panel location.

  3. Three years of morphologic changes at a bowl blowout, Cape Cod, USA

    Science.gov (United States)

    Smith, Alex; Gares, Paul A.; Wasklewicz, Thad; Hesp, Patrick A.; Walker, Ian J.

    2017-10-01

    This study presents measurements of blowout topography obtained with annual terrestrial laser surveys carried out over a three-year period at a single, large bowl blowout located in the Provincelands Dunes section of Cape Cod National Seashore, in Massachusetts. The study blowout was selected because its axis is aligned with northwest winds that dominate the region, and because it was seemingly interacting with a smaller saucer blowout that had recently formed on the southern rim of the primary feature. Assuming that blowouts enlarge both horizontally and vertically in response to the wind regime, the objectives of the study were to determine both the amount of horizontal growth that the blowout experiences annually and the spatial patterns of vertical change that occur within the blowout. Changes to the blowout lobe surrounding the feature were also determined for areas with sparse enough vegetation cover to allow laser returns from the sand surface. The results show that the blowout consistently expanded outward during the three years, with the greatest expansion occurring at its southeast corner, opposite the prevailing winds. The most significant occurrence was the removal, in the first year, of the ridge that separated the two blowouts, resulting in a major horizontal shift of the southern rim of the new combined blowout. This displacement then continued at a lesser rate in subsequent years. The rim also shifted horizontally along the northwest to northeast sections of the blowout. Significant vertical loss occurred along the main axis of the blowout with the greatest loss concentrated along the southeast rim. On the lobe, there were large areas of deposition immediately downwind of the high erosion zones inside the blowout. However, there were also small erosion areas on the lobe, extending downwind from eroding sections of the rim. This study shows that: 1. blowouts can experience significant areal and volumetric changes in short periods of time; 2

  4. 30 CFR 250.1624 - Blowout prevention equipment.

    Science.gov (United States)

    2010-07-01

    ... station and one BOP-control station on the rig floor; and (5) A choke line and a kill line each equipped with two full-opening valves and a choke manifold. One of the choke-line valves and one of the kill...

  5. 30 CFR 250.615 - Blowout prevention equipment.

    Science.gov (United States)

    2010-07-01

    ... operations with the tree removed must meet the appropriate standards from the following table: When The... secondary source of pneumatic supply, must be equipped with manual overrides, or alternately, other devices...

  6. 30 CFR 250.515 - Blowout prevention equipment.

    Science.gov (United States)

    2010-07-01

    ... the appropriate standards from the following table: When The minimum BOP stack must include (1) The... without a secondary source of pneumatic supply, must be equipped with manual overrides, or alternately...

  7. Management of diplopia in patients with blowout fractures

    Directory of Open Access Journals (Sweden)

    Osman Melih Ceylan

    2011-01-01

    Full Text Available Purpose: To report the management outcomes of diplopia in patients with blowout fracture. Materials and Methods: Data for 39 patients with diplopia due to orbital blowout fracture were analyzed retrospectively. The inferior wall alone was involved in 22 (56.4% patients, medial wall alone was involved in 14 (35.8% patients, and the medial and inferior walls were involved in three (7.6% patients. Each fracture was reconstructed with a Medpore® implant. Strabismus surgery or prism correction was performed in required patients for the management of persistent diplopia. Mean postoperative follow up was 6.5 months. Results: Twenty-three (58.9% patients with diplopia underwent surgical repair of blowout fracture. Diplopia was eliminated in 17 (73.9% patients following orbital wall surgery. Of the 23 patients, three (7.6% patients required prism glasses and another three (7.6% patients required strabismus surgery for persistent diplopia. In four (10.2% patients, strabismus surgery was performed without fracture repair. Twelve patients (30.7% with negative forced duction test results were followed up without surgery. Conclusions: In our study, diplopia resolved in 30.7% of patients without surgery and 69.2% of patients with diplopia required surgical intervention. Primary gaze diplopia was eliminated in 73.9% of patients through orbital wall repair. The most frequently employed secondary surgery was adjustable inferior rectus recession and <17.8% of patients required additional strabismus surgery.

  8. Well blowout rates in California Oil and Gas District 4--Update and Trends

    Energy Technology Data Exchange (ETDEWEB)

    Jordan, Preston D.; Benson, Sally M.

    2009-10-01

    Well blowouts are one type of event in hydrocarbon exploration and production that generates health, safety, environmental and financial risk. Well blowouts are variously defined as 'uncontrolled flow of well fluids and/or formation fluids from the wellbore' or 'uncontrolled flow of reservoir fluids into the wellbore'. Theoretically this is irrespective of flux rate and so would include low fluxes, often termed 'leakage'. In practice, such low-flux events are not considered well blowouts. Rather, the term well blowout applies to higher fluxes that rise to attention more acutely, typically in the order of seconds to days after the event commences. It is not unusual for insurance claims for well blowouts to exceed US$10 million. This does not imply that all blowouts are this costly, as it is likely claims are filed only for the most catastrophic events. Still, insuring against the risk of loss of well control is the costliest in the industry. The risk of well blowouts was recently quantified from an assembled database of 102 events occurring in California Oil and Gas District 4 during the period 1991 to 2005, inclusive. This article reviews those findings, updates them to a certain extent and compares them with other well blowout risk study results. It also provides an improved perspective on some of the findings. In short, this update finds that blowout rates have remained constant from 2005 to 2008 within the limits of resolution and that the decline in blowout rates from 1991 to 2005 was likely due to improved industry practice.

  9. Complete inferior rectus muscle transection secondary to orbital blowout fracture.

    Science.gov (United States)

    Carrere, Jonathan M; Lewis, Kyle T

    2018-01-05

    Complete extraocular muscle transection is uncommon in the setting of blunt trauma. We report a case of a 53-year-old male that developed diplopia after hitting his face directly on a concrete slab after a fall. On examination, he had a right hypertropia with a complete infraduction deficit. A CT scan of the face showed an orbital floor blowout fracture with complete inferior rectus transection. On surgical exploration, the distal and proximal ends of the muscle were identified and sutured together, and the floor fracture was repaired. At his post-operative visits, the patient had a persistent infraduction deficit, but subjectively had improved diplopia.

  10. Self expandable polytetrafluoroethylene stent for carotid blowout syndrome.

    Science.gov (United States)

    Tatar, E C; Yildirim, U M; Dündar, Y; Ozdek, A; Işik, E; Korkmaz, H

    2012-01-01

    Carotid blowout syndrome (CBS) is an emergency complication in patients undergoing treatment for head and neck cancers. The classical management of CBS is the ligation of the common carotid artery, because suturing is not be possible due to infection and necrosis of the field. In this case report, we present a patient with CBS, in whom we applied a self-expandable polytetrafluoroethylene (PTFE) stent and observed no morbidity. Endovascular stent is a life-saving technique with minimum morbidity that preserves blood flow to the brain. We believe that this method is preferable to ligation of the artery in CBS.

  11. Dynamic Changes of Typical Blowouts Based on High-Resolution Data: A Case Study in Hulunbuir Sandy Land, China

    Directory of Open Access Journals (Sweden)

    Yi Yang

    2017-01-01

    Full Text Available Blowouts are an important ground indication of wind-sand activity in the Hulunbuir grassland. They include two basic geomorphologic units, erosion depression and sand deposition, and three typical morphological types: saucer type, trough type, and compound type. In this study, the dynamic changes of typical blowouts within the past decade were analyzed via multiperiod high-resolution remote sensing images. RTK was used to repeatedly measure the blowouts to obtain their high-precision 3D terrain data in 2010, 2011, and 2012. Short-term dynamic changes in 3D blowout morphology were carefully analyzed to discover the following. (1 From 2002 to 2012, the depressions of typical blowouts exhibited downwind extension and lateral expansion trends, as they continuously grew in size. Regarding the sand deposition zones, those of the saucer blowout grew continuously, while those of the trough and compound blowouts fluctuated between growth and contraction. (2 The erosion depression of saucer blowouts eroded downward and spread horizontally; that of trough blowouts first accumulated then eroded but also spread horizontally. The erosion depression of compound blowouts exhibited horizontal spreading accompanied with bottom accumulation. The sand deposition zones of all three types of blowouts exhibited decreasing length with increasing width and height.

  12. A Slow Streamer Blowout at the Sun and Ulysses

    Science.gov (United States)

    Seuss, S. T.; Bemporad, A.; Poletto, G.

    2004-01-01

    On 10 June 2000 a streamer on the southeast limb slowly disappeared from LASCO/C2 over approximately 10 hours. A small CME was reported in C2. A substantial interplanetary CME (ICME) was later detected at Ulysses, which was at quadrature with the Sun and SOHO at the time. This detection illustrates the properties of an ICME for a known solar source and demonstrates that the identification can be done even beyond 3 AU. Slow streamer blowouts such as this have long been known but are little studied. We report on the SOHO observation of a coronal mass ejection (CME) on the solar limb and the subsequent in situ detection at Ulysses, which was near quadrature at the time, above the location of the CME. SOHO-Ulysses quadrature was 13 June, when Ulysses was 3.36 AU from the Sun and 58.2 degrees south of the equator off the east limb. The slow streamer blowout was on 10 June, when the SOHO-Sun-Ulysses angle was 87 degrees.

  13. Orbital Wall Restoring Surgery in Pure Blowout Fractures

    Directory of Open Access Journals (Sweden)

    Nam Kyu Lim

    2014-11-01

    Full Text Available BackgroundRestoring orbital volume in large blowout fractures is still a technically challenge to the orbital surgeon. In this study, we restored the orbital wall using the combination of transorbital and transnasal approach with additional supports from the paranasal sinuses, and we compared the surgical outcome to that of a conventional transorbital method.MethodsA retrospective review of all patients with pure unilateral blowout fractures between March 2007 and March 2013 was conducted. 150 patients were classified into two groups according to the surgical method: conventional transorbital method (group A, 75 patients, control group, and the combination of transorbital and transnasal approach with additional supports from the paranasal sinuses (group B, 75 patients, experimental group. Each group was subdivided depending on fracture location: group I (inferior wall, group IM (inferomedial wall, and group M (medial wall. The surgical results were assessed by the Hertel scale and a comparison of preoperative and postoperative orbital volume ratio (OVR values.ResultsIn the volumetric analysis, the OVR decreased more by the experimental groups than each corresponding control groups (P0.05.ConclusionsOur surgical results suggest that orbital volume was more effectively restored by the combination of transorbital and transnasal approach with additional supports from the paranasal sinuses than the conventional method, regardless of the type of fracture.

  14. Interaction of hydraulic and buckling mechanisms in blowout fractures.

    Science.gov (United States)

    Nagasao, Tomohisa; Miyamoto, Junpei; Jiang, Hua; Tamaki, Tamotsu; Kaneko, Tsuyoshi

    2010-04-01

    The etiology of blowout fractures is generally attributed to 2 mechanisms--increase in the pressure of the orbital contents (the hydraulic mechanism) and direct transmission of impacts on the orbital walls (the buckling mechanism). The present study aims to elucidate whether or not an interaction exists between these 2 mechanisms. We performed a simulation experiment using 10 Computer-Aided-Design skull models. We applied destructive energy to the orbits of the 10 models in 3 different ways. First, to simulate pure hydraulic mechanism, energy was applied solely on the internal walls of the orbit. Second, to simulate pure buckling mechanism, energy was applied solely on the inferior rim of the orbit. Third, to simulate the combined effect of the hydraulic and buckling mechanisms, energy was applied both on the internal wall of the orbit and inferior rim of the orbit. After applying the energy, we calculated the areas of the regions where fracture occurred in the models. Thereafter, we compared the areas among the 3 energy application patterns. When the hydraulic and buckling mechanisms work simultaneously, fracture occurs on wider areas of the orbital walls than when each of these mechanisms works separately. The hydraulic and buckling mechanisms interact, enhancing each other's effect. This information should be taken into consideration when we examine patients in whom blowout fracture is suspected.

  15. BLOWOUT FRACTURES OF THE FLOOR OF THE ORBIT.

    Science.gov (United States)

    MORTON, W R; TURNBULL, W

    1964-01-11

    Blowout fractures of the orbit, a frequent complication of midfacial trauma, result from an increased intraorbital pressure which "blows out" the weakest area-the floor. Intraorbital fat and muscles herniated into the maxillary sinus, muscles incarcerated in the fracture, and the displaced orbital contents produce diplopia. After incarceration, elevation of the affected eye is impossible.Diagnosis is frequently difficult because initial intraorbital hemorrhage may limit mobility. Tomograms in the Waters' projection may show the fracture but frequently reveal only a cloudy antrum. The muscle traction test described herein is most helpful.The surgical correction aims at bridging the defect with Teflon or stainless-steel mesh or endogenous bone graft placed beneath the periosteum. Entry is gained through the lower lid. If repaired early, there is no functional loss and the repair is cosmetically excellent.

  16. Flame Propagation and Blowout in Hydrocarbon Jets: Experiments to Understand the Stability and Structure

    Science.gov (United States)

    2012-07-29

    Wilson and Kevin M. Lyons. On Diluted-Fuel Combustion Issues in Burning Biogas Surrogates, ASME-JERT, (12 2009): . doi: 2010/01/07 10:47:38 2 TOTAL...blowout velocities. For each flow configuration, the coflow velocity is divided by the liftoff and blowout velocities to produce a dimensionless ratio...rate of the methane and the nitrogen were regulated with separate rotameters such that the amounts of methane and nitrogen issuing from the fuel pipe

  17. Morphology and Sediment Transport Dynamics of a Trough-Blowout Dune, Bodega Marine Reserve, Northern California

    Science.gov (United States)

    Jorgenson, D.; Dunleavy, C. J.; Smith, M. E.

    2014-12-01

    Blowout dunes are a primary mechanism for transporting sand within vegetated coastal dune systems. Understanding the fine-scale variation in sediment transport within these systems is critical to predicting their formation and migration. Previous investigations of a coastal dune system located at the Bodega Marine Reserve, on the Sonoma Coast of Northern California have indicated that aeolian sand flux in unvegetated sand is ~450x greater than in vegetated areas. To better understand sand flux and its relationship with wind speed, direction and precipitation, we deployed an array of 12 sand traps within a single blowout area adjacent to the BOON marine climatology station. The blowout is trough- shaped, approximately 50 meters long and 15 meters wide. Its main 'fairway' is 5-10 meters below the surrounding beach grass (Ammophila)-covered land surface. Surface sediment within the blowout is fine-grained to granule-sized lithic to sub-lithic sand, and is coarsest in the center. Dune sediment in the Bodega Marine Reserve has been transported by aeolian processes from Salmon Creek Beach to the NW. Within the blowout, typical bedforms include 15-25 cm-wavelength, ~10 cm high sinuous to lingoid ripples arranged perpendicularly to the dominant wind direction (~280 degrees). An 8-10 meter-high mound at the downwind end has accumulated due to the trapping of sand flux by vegetation. Sediment flux across the studied blowout was sampled monthly over a 10-month period of 2013-2014. Sand traps were constructed using modified PVC cylinders, and are 0.5 meter high and 0.3 meter in diameter, with a 0.74-micron mesh screen. Based on measured sand flux, the sites can be categorized into three groups-axial, medial, and peripheral. Rates increase downwind within the blowout. Inter-site sand flux variability within unvegetated locations of the blowout is greater than two orders of magnitude. Axial sites, which experience the greatest sand flux, occur on the edge of the blowout adjacent

  18. Orbital Cellulitis Following Orbital Blow-out Fracture.

    Science.gov (United States)

    Byeon, Je Yeon; Choi, Hwan Jun

    2017-10-01

    Orbital cellulitis and abscess have been described in the literature as complication that usually occur secondary to infection in the maxillary, ethmoidal, and frontal sinuses. If left untreated, it can lead to blindness, cavernous sinus thrombosis, meningitis, or cerebral abscess. Orbital fractures are a common sequela of blunt orbital trauma, but are only rarely associated with orbital cellulitis. So, the authors present rare orbital cellulitis after orbital blow-out fracture. A 55-year-old Asian complains of severe orbital swelling and pain on the left side. These symptoms had started 2 days earlier and worsened within the 24 hours before hospital admission resulting in visual disturbances such as diplopia and photophobia. Contrast-enhanced computed tomography scan showed considerable soft tissue swelling and abscess formation on the left side. Patient was subjected to surgical drainage under general anesthesia in the operation room. In this case, the postoperative period was uneventful and the rapid improvement of symptoms was remarkable. In conclusion, the abscess of the orbit is a surgical emergency in patients whose impairment of vision or ocular symptoms cannot be controlled with medical therapy using antibiotics. In our case, orbital cellulitis can occur after blunt orbital trauma without predisposing sinusitis. Early and prompt diagnosis and surgical drainage before severe loss of visual acuity rescue or recover the vision in case of orbital cellulitis.

  19. Change of the orbital volume ratio in pure blow-out fractures depending on fracture location.

    Science.gov (United States)

    Oh, Sang Ah; Aum, Jae Ho; Kang, Dong Hee; Gu, Ja Hea

    2013-07-01

    The purposes of this study were to observe bony orbital volume (OV) changes in pure blow-out fractures according to fracture location using a facial computed tomographic scan and to investigate whether the OV measurements can be used as a quantitative value for the evaluation of the surgical results of the acute blow-out fracture.Forty-five patients with unilateral pure blow-out fracture were divided into 3 groups: inferior (group I), inferior medial (group IM), and medial (group M) orbital wall fracture. The OV and the orbital volume ratio (OVR) were prospectively measured before and 6 months after surgery with the use of 3-dimensional computed tomographic scans, and the Hertel scale was measured with a Hertel exothalmometer.The preoperative OVR increased to the greatest extent in group IM, and the mean preoperative OVR was 121.46. The mean preoperative OVR in group I was significantly higher than that of group M (P = 0.005). The OV and OVR revealed a statistically significant decrease after the surgery (P = 0.000). The Hertel scale improved from -1.04 mm before the surgery to -0.78 mm after the surgery, but no significant difference was observed (P = 0.051).The OVR was useful as a quantitative value to evaluate pure blow-out fractures, compared with that of the Hertel scale. Fracture location-associated OVR studies are needed to make volume guidelines of blow-out fracture surgery.

  20. 76 FR 49666 - Safety Zone; East Coast Drag Boat Bucksport Blowout Boat Race, Waccamaw River, Bucksport, SC

    Science.gov (United States)

    2011-08-11

    ... SECURITY Coast Guard 33 CFR Part 165 RIN 1625-AA00 Safety Zone; East Coast Drag Boat Bucksport Blowout Boat... East Coast Drag Boat Bucksport Blowout in Bucksport, South Carolina. The East Coast Drag Boat Bucksport... September 18, 2011, the East Coast Drag Boat Association will host the East Coast Drag Boat Bucksport...

  1. Montara blowout - what went wrong? what are the lessons for industry and regulators?

    Energy Technology Data Exchange (ETDEWEB)

    Cutler, Jane [NOPSA Canada (Canada)

    2010-07-01

    PTTEP owns and operates the Montara development project which is situated in the Timor Sea. There are over 37 million barrels of oil reserves located about 650 km from Darwin and in 77m of water. This development is composed of 4 producing wells and 1 gas re-injection well; production was to be from an unmanned wellhead platform. Initial drilling on H1 started in January 2009 and a blowout occurred on this well on August 21st, 2009. The aim of this paper is to present the causes of this accident and the implications for the industry, governments and regulators, including Australian regulators. It was shown that the blowout resulted from a systemic failure by PTTEP to manage the integrity of the well. This incident put the offshore oil and gas industry in the spotlight. This paper presented the blowout which occurred in the Montara development project, its causes, and its consequences.

  2. Evolution of the Macondo well blowout: simulating the effects of the circulation and synthetic dispersants on the subsea oil transport.

    Science.gov (United States)

    Paris, Claire B; Hénaff, Matthieu Le; Aman, Zachary M; Subramaniam, Ajit; Helgers, Judith; Wang, Dong-Ping; Kourafalou, Vassiliki H; Srinivasan, Ashwanth

    2012-12-18

    During the Deepwater Horizon incident, crude oil flowed into the Gulf of Mexico from 1522 m underwater. In an effort to prevent the oil from rising to the surface, synthetic dispersants were applied at the wellhead. However, uncertainties in the formation of oil droplets and difficulties in measuring their size in the water column, complicated further assessment of the potential effect of the dispersant on the subsea-to-surface oil partition. We adapted a coupled hydrodynamic and stochastic buoyant particle-tracking model to the transport and fate of hydrocarbon fractions and simulated the far-field transport of the oil from the intrusion depth. The evaluated model represented a baseline for numerical experiments where we varied the distributions of particle sizes and thus oil mass. The experiments allowed to quantify the relative effects of chemical dispersion, vertical currents, and inertial buoyancy motion on oil rise velocities. We present a plausible model scenario, where some oil is trapped at depth through shear emulsification due to the particular conditions of the Macondo blowout. Assuming effective mixing of the synthetic dispersants at the wellhead, the model indicates that the submerged oil mass is shifted deeper, decreasing only marginally the amount of oil surfacing. In this scenario, the oil rises slowly to the surface or stays immersed. This suggests that other mechanisms may have contributed to the rapid surfacing of oil-gas mixture observed initially. The study also reveals local topographic and hydrodynamic processes that influence the oil transport in eddies and multiple layers. This numerical approach provides novel insights on oil transport mechanisms from deep blowouts and on gauging the subsea use of synthetic dispersant in mitigating coastal damage.

  3. One-side riddled basin below and beyond the blowout bifurcation

    Science.gov (United States)

    Yang, H. L.

    2000-10-01

    In this Rapid Comunication we report a phenomenon of a one-side riddled basin where one side of the basin of attraction of an attractor on an invariant subspace (ISS) is globally riddled, while the other side is only locally riddled. This kind of basin appears due to the symmetry breaking with respect to the ISS. This one-side riddled basin can even persist beyond the blowout bifurcation, contrary to the previously reported riddled basins which exist only below the blowout transition. An experimental situation where this phenomenon can be expected is proposed.

  4. A review of seafood safety after the deepwater horizon blowout.

    Science.gov (United States)

    Gohlke, Julia M; Doke, Dzigbodi; Tipre, Meghan; Leader, Mark; Fitzgerald, Timothy

    2011-08-01

    The Deepwater Horizon (DH) blowout resulted in fisheries closings across the Gulf of Mexico. Federal agencies, in collaboration with impacted Gulf states, developed a protocol to determine when it is safe to reopen fisheries based on sensory and chemical analyses of seafood. All federal waters have been reopened, yet concerns have been raised regarding the robustness of the protocol to identify all potential harmful exposures and protect the most sensitive populations. We aimed to assess this protocol based on comparisons with previous oil spills, published testing results, and current knowledge regarding chemicals released during the DH oil spill. We performed a comprehensive review of relevant scientific journal articles and government documents concerning seafood contamination and oil spills and consulted with academic and government experts. Protocols to evaluate seafood safety before reopening fisheries have relied on risk assessment of health impacts from polycyclic aromatic hydrocarbon (PAH) exposures, but metal contamination may also be a concern. Assumptions used to determine levels of concern (LOCs) after oil spills have not been consistent across risk assessments performed after oil spills. Chemical testing results after the DH oil spill suggest PAH levels are at or below levels reported after previous oil spills, and well below LOCs, even when more conservative parameters are used to estimate risk. We recommend use of a range of plausible risk parameters to set bounds around LOCs, comparisons of post-spill measurements with baseline levels, and the development and implementation of long-term monitoring strategies for metals as well as PAHs and dispersant components. In addition, the methods, results, and uncertainties associated with estimating seafood safety after oil spills should be communicated in a transparent and timely manner, and stakeholders should be actively involved in developing a long-term monitoring strategy.

  5. Blow-out of nonpremixed turbulent jet flames at sub-atmospheric pressures

    KAUST Repository

    Wang, Qiang

    2016-12-09

    Blow-out limits of nonpremixed turbulent jet flames in quiescent air at sub-atmospheric pressures (50–100 kPa) were studied experimentally using propane fuel with nozzle diameters ranging 0.8–4 mm. Results showed that the fuel jet velocity at blow-out limit increased with increasing ambient pressure and nozzle diameter. A Damköhler (Da) number based model was adopted, defined as the ratio of characteristic mixing time and characteristic reaction time, to include the effect of pressure considering the variations in laminar burning velocity and thermal diffusivity with pressure. The critical lift-off height at blow-out, representing a characteristic length scale for mixing, had a linear relationship with the theoretically predicted stoichiometric location along the jet axis, which had a weak dependence on ambient pressure. The characteristic mixing time (critical lift-off height divided by jet velocity) adjusted to the characteristic reaction time such that the critical Damköhler at blow-out conditions maintained a constant value when varying the ambient pressure.

  6. The Hydraulic Mechanism in the Orbital Blowout Fracture Because of a High-Pressure Air Gun Injury.

    Science.gov (United States)

    Kang, Seok Joo; Chung, Eui Han

    2015-10-01

    There are 2 predominant mechanisms that are used to explain the pathogenesis of orbital blowout fracture; these include hydraulic and buckling mechanisms. Still, however, its pathophysiology remains uncertain. To date, studies in this series have been conducted using dry skulls, cadavers, or animals. But few clinical studies have been conducted to examine whether the hydraulic mechanism is involved in the occurrence of pure orbital blowout fracture. The authors experienced a case of a 52-year-old man who had a pure medial blowout fracture after sustaining an eye injury because of a high-pressure air gun. Our case suggests that surgeons should be aware of the possibility that the hydraulic mechanism might be involved in the blowout fracture in patients presenting with complications, such as limitation of eye movement, diplopia, and enophthalmos.

  7. Numerical simulation of water and sand blowouts when penetrating through shallow water flow formations in deep water drilling

    Science.gov (United States)

    Ren, Shaoran; Liu, Yanmin; Gong, Zhiwu; Yuan, Yujie; Yu, Lu; Wang, Yanyong; Xu, Yan; Deng, Junyu

    2018-02-01

    In this study, we applied a two-phase flow model to simulate water and sand blowout processes when penetrating shallow water flow (SWF) formations during deepwater drilling. We define `sand' as a pseudo-component with high density and viscosity, which can begin to flow with water when a critical pressure difference is attained. We calculated the water and sand blowout rates and analyzed the influencing factors from them, including overpressure of the SWF formation, as well as its zone size, porosity and permeability, and drilling speed (penetration rate). The obtained data can be used for the quantitative assessment of the potential severity of SWF hazards. The results indicate that overpressure of the SWF formation and its zone size have significant effects on SWF blowout. A 10% increase in the SWF formation overpressure can result in a more than 90% increase in the cumulative water blowout and a 150% increase in the sand blowout when a typical SWF sediment is drilled. Along with the conventional methods of well flow and pressure control, chemical plugging, and the application of multi-layer casing, water and sand blowouts can be effectively reduced by increasing the penetration rate. As such, increasing the penetration rate can be a useful measure for controlling SWF hazards during deepwater drilling.

  8. The use of pulsed high-speed liquid jet for putting out gas blow-out

    Directory of Open Access Journals (Sweden)

    A Semko

    2016-10-01

    Full Text Available The experimental analysis of putting out a gas blow-out with the help of pulse liquid flow with high velocity, which generates by powder pulse water-cannon are carried out. The flow velocity resides in range from 300 to 600 m/s in experiments depends on charge energy. Velocity of the flow head right near the gas flame determined with the help of laser contactless measuring instrument of velocity. Photography of flow was carried out. According to the preliminary test results the hydrodynamic parameters of powder pulse water-cannon for obtaining liquid flow with depend velocity are calculated. It is shown, that around the liquid flow of high velocity in air produced fine water spray with high velocity in large cross section area that effective knock down the gas blow-out at the distance 5-20 m from installation.

  9. Microbiological investigations after the ``Bravo'' blowout (Ekofisk oil field, North Sea)

    Science.gov (United States)

    Gunkel, W.; Pedersen, S.; Dundas, I.; Eimhjellen, K.

    1985-03-01

    Following the accident in 1977 at an offshore oil producing platform in the Ekofisk oil field (North Sea) an estimated amount of 13000 15000 tons of oil polluted the sea. Microbiological investigations were conducted one to five weeks after the blowout and compared with data collected in the same area during the years before. Bacterial numbers in the water were fairly low. In the floating oil particles, however, extremely high values were obtained (2 × 1011 heterotrophic bacteria 1-1 and 5 × 1010 oil degrading bacteria 1-1). The data on oxygen consumption gave markedly different results indicating that the oil degradation potential of the water seemed to vary widely from one station to another. The greatest increase in oxygen consumption (following the addition of oil to the bottles) occurred in samples taken at the station where oil particles from the blowout were observed floating on the surface. This indicates a higher oil degradation potential.

  10. Clinical characteristics and treatment of blow-out fracture accompanied by canalicular laceration.

    Science.gov (United States)

    Lee, Hwa; Ahn, Jaemoon; Lee, Tae Eun; Lee, Jong Mi; Shin, Hyungho; Chi, Mijung; Park, Minsoo; Baek, Sehyun

    2012-09-01

    Blow-out fracture and canalicular laceration can occur simultaneously as a result of the same trauma. Despite its importance, little research has been conducted to identify clinical characteristics or surgical techniques for repair of a blow-out fracture accompanied by canalicular laceration. The aim of this study was to evaluate the clinical characteristics, the surgical approach, and the outcomes. Thirty-four eyes of 34 patients who underwent simultaneous repair of canalicular laceration using silicone tube intubation and reconstruction of blow-out fracture were included. Medical records were retrospectively reviewed for patient demographics, nature of injury, affected canaliculus, location, and severity of blow-out fracture, associated facial bone fracture, ophthalmic diagnosis, length of follow-up period, and surgical outcome. Mean patient age was 40.0 years (range, 17-71 y). The mean follow-up was 7.3 months. Fist to the orbital area (10 patients, 29.4%) was the most common cause. There were 24 lower canalicular lacerations (70.6%), 6 upper canalicular lacerations (17.6%), and 4 upper and lower canalicular lacerations (11.8%). Isolated medial wall fractures were most common (area A4: 20/34, 58.8%). Fractures involving both the floor and medial wall and maxillo-ethmoidal strut (areas A1, A2, A3, and A4) were the second most common (6/34, 17.6%), and floor and medial wall with intact strut (areas A1, A2, and A4) were injured in 6 patients (17.6%). Pure inferior wall fractures were least frequent (areas A1 and A2: 2/34, 5.9%). The severity of the fracture was severe in most patients except for 1 linear fracture with tissue entrapment and 1 moderate medial wall fracture (32/34, 94.1%). There was lid laceration in 20 patients (58.8%). Nasal bone fracture (5/34, 14.7%) was the most common facial bone fracture. Tubes were removed at a mean of 3.3 months (range, 3-4 mo). In total, 31 patients (91.2%) achieved complete success in canalicular laceration and blow-out

  11. Application on forced traction test in surgeries for orbital blowout fracture

    Directory of Open Access Journals (Sweden)

    Bao-Hong Han

    2014-05-01

    Full Text Available AIM: To discuss the application of forced traction test in surgeries for orbital blowout fracture.METHODS: The clinical data of 28 patients with reconstructive surgeries for orbital fracture were retrospectively analyzed. All patients were treated with forced traction test before/in/after operation. The eyeball movement and diplopia were examined and recorded pre-operation, 3 and 6mo after operation, respectively.RESULTS: Diplopia was improved in all 28 cases with forced traction test. There was significant difference between preoperative and post-operative diplopia at 3 and 6mo(PCONCLUSION: Forced traction test not only have a certain clinical significance in diagnosis of orbital blowout fracture, it is also an effective method in improving diplopia before/in/after operation.

  12. Blow-Out Velocities of Solutions of Hydrocarbons and Boron Hydride - Hydrocarbon Reaction Products in a 1 7/8-Inch-Diameter Combustor

    Science.gov (United States)

    Morris, James F.; Lord, Albert M.

    1957-01-01

    Blow-out velocities were determined for JP-4 solutions containing: (1) 10 % ethylene - decaborane reaction product, (2) 10% and 20% acetylene - diborane reaction product, and (3) 5.5%, 15.7%, and 30.7% methylacetylene - diborane reaction product. These were compared with blow-out velocities for JP-4, propylene oxide, and neohexane and previously reported data for JP-4 solutions of pentaborane. For those reaction products investigated, the blow-out velocities at a fixed equivalence ratio were higher for those materials containing higher boron concentrations; that is, blow-out velocity increased in the following order: (1) methylacetylene - diborane, (2) acetylene - diborane, and (3) ethylene - decaborane reaction products.

  13. Fine wakefield structure in the blowout regime of plasma wakefield accelerators

    Directory of Open Access Journals (Sweden)

    K. V. Lotov

    2003-06-01

    Full Text Available For simulations of plasma wakefield acceleration (PWFA and similar problems, we developed two-dimensional fully electromagnetic fully relativistic hybrid code LCODE. The code is very fast due to explicit use of several simplifying assumptions (quasistatic approximation, ultrarelativistic beam, and the symmetry. With LCODE, we make high-resolution simulations of the blowout regime of PWFA and study the temperature effect on the amplitude of the accelerating field spike.

  14. A Micro Coronal Mass Ejection Associated Blowout Extreme-ultraviolet Jet

    Science.gov (United States)

    Hong, Junchao; Jiang, Yunchun; Zheng, Ruisheng; Yang, Jiayan; Bi, Yi; Yang, Bo

    2011-09-01

    The so-called mini coronal mass ejections (CMEs) were recently identified as small-scale eruptive events showing the same on-disk characteristics as large-scale CMEs, and Moore et al. further found that one-third of polar X-ray jets are the so-called blowout jets, in which the jet-base magnetic arch, often carrying a filament, undergoes a miniature version of the blowout eruptions that produce major CMEs. By means of the two viewpoint observations from the Solar Dynamics Observatory (SDO) and the Ahead of Solar Terrestrial Relations Observatory (STEREO A), in this Letter, we present the first observations that a blowout jet from the eruption of an EUV mini-filament channel in the quiet Sun was indeed associated with a real micro-CME. Captured by the on-disk SDO observations, the whole life of the mini-filament channel, from the formation to eruption, was associated with convergences and cancellations of opposite-polarity magnetic flux in the photosphere, and its eruption was accompanied by a small flare-like brightening, a small corona dimming, and posteruptive loops. The near-limb counterpart of the eruption observed by STEREO A, however, showed up as a small EUV jet followed by a white-light jet. These observations not only confirm the previous results that mini-filaments have characteristics common to large-scale ones, but also give clear evidences that blowout jets can result from the eruptions of mini-filaments and are associated with mini-CME.

  15. Breaking primary seed dormancy in Gibbens' beardtongue (Penstemon gibbensii) and blowout penstemon (Penstemon haydenii)

    Science.gov (United States)

    Kassie L. Tilini; Susan E. Meyer; Phil S. Allen

    2016-01-01

    This study established that chilling removes primary seed dormancy in 2 rare penstemons of the western US, Gibbens’ beardtongue (Penstemon gibbensii Dorn [Scrophulariaceae]) and blowout penstemon (Penstemon haydenii S. Watson). Wild-harvested seeds were subjected either to moist chilling at 2 to 4 °C (36-39 °F) for 0, 4, 8, 12, and 16 wk or to approximately 2 y of dry...

  16. Diplopia and ocular motility in orbital blow-out fractures: 10-year retrospective study.

    Science.gov (United States)

    Alhamdani, Faaiz; Durham, Justin; Greenwood, Mark; Corbett, Ian

    2015-09-01

    To investigate diplopia (binocular single vision [BSV] test) and ocular motility (uniocular field of fixation [UFOF] test) characteristics in blow-out fractures of the orbit and their value in fracture management. Patients with isolated blow-out fractures treated from 2000 to 2010 were included. BSV scores were stratified into three categories: low BSV category (0-60); moderate BSV category (61-80), and high BSV category (81-100). UFOF scores were also divided into three categories: low score (60-240), moderate score (241-270), and high score (271-365) categories. A total of 183 patients (106 surgically and 77 conservatively managed) met the inclusion criteria. There was no significant improvement in BSV postoperatively in surgically managed patients with preoperatively high BSV, whereas there was significant improvement (p blow-out fracture cases with BSV score >80% for correction of diplopia alone. Copyright © 2015 European Association for Cranio-Maxillo-Facial Surgery. Published by Elsevier Ltd. All rights reserved.

  17. Orbital Blowout Fracture with Complete Dislocation of the Globe into the Maxillary Sinus.

    Science.gov (United States)

    Wang, Joy Mh; Fries, Fabian N; Hendrix, Philipp; Brinker, Titus; Loukas, Marios; Tubbs, R Shane

    2017-09-29

    This rare case report describes the diagnosis and treatment of an isolated left-sided orbital floor fracture with a complete dislocation of the globe into the maxillary sinus and briefly discusses the indications of surgery and recovery for orbital floor fractures in general. Complete herniation of the globe through an orbital blow-out fracture is uncommon. However, the current case illustrates that such an occurrence should be in the differential diagnosis and should be considered, especially following high speed/impact injuries involving a foreign object. In these rare cases, surgical intervention is required.

  18. Rotating preventers

    International Nuclear Information System (INIS)

    Tangedahl, M.J.; Stone, C.R.

    1992-01-01

    This paper reports that recent changes in the oil and gas industry and ongoing developments in horizontal and underbalanced drilling necessitated development of a better rotating head. A new device called the rotating blowout preventer (RBOP) was developed by Seal-Tech. It is designed to replace the conventional rotating control head on top of BOP stacks and allows drilling operations to continue even on live (underbalanced) wells. Its low wear characteristics and high working pressure (1,500 psi) allow drilling rig crews to drill safely in slightly underbalanced conditions or handle severe well control problems during the time required to actuate other BOPs in the stack. Drilling with a RBOP allows wellbores to be completely closed in tat the drill floor rather than open as with conventional BOPs

  19. Fatal carotid blowout syndrome after BNCT for head and neck cancers

    International Nuclear Information System (INIS)

    Aihara, T.; Hiratsuka, J.; Ishikawa, H.; Kumada, H.; Ohnishi, K.; Kamitani, N.; Suzuki, M.; Sakurai, H.; Harada, T.

    2015-01-01

    Boron neutron capture therapy (BNCT) is high linear energy transfer (LET) radiation and tumor-selective radiation that does not cause serious damage to the surrounding normal tissues. BNCT might be effective and safe in patients with inoperable, locally advanced head and neck cancers, even those that recur at previously irradiated sites. However, carotid blowout syndrome (CBS) is a lethal complication resulting from malignant invasion of the carotid artery (CA); thus, the risk of CBS should be carefully assessed in patients with risk factors for CBS after BNCT. Thirty-three patients in our institution who underwent BNCT were analyzed. Two patients developed CBS and experienced widespread skin invasion and recurrence close to the carotid artery after irradiation. Careful attention should be paid to the occurrence of CBS if the tumor is located adjacent to the carotid artery. The presence of skin invasion from recurrent lesions after irradiation is an ominous sign of CBS onset and lethal consequences. - Highlights: • This study is fatal carotid blowout syndrome after BNCT for head and neck cancers. • Thirty-three patients in our institution who underwent BNCT were analyzed. • Two patients (2/33) developed CBS. • The presence of skin invasion from recurrent lesions after irradiation is an ominous sign of CBS. • We must be aware of these signs to perform BNCT safely.

  20. Impacts of an oil well blowout near Trecate, Italy on ecological resources

    International Nuclear Information System (INIS)

    Brandt, C.; Becker, J.; Dauble, D.

    1995-01-01

    An ecological risk assessment (ERA) was conducted after the February 1995 blowout of an oil well near Trecate, Italy to quantify injuries to terrestrial and aquatic biological resources from effects of oil and habitat changes. Avian surveys were conducted on a surrogate area near Varallino to estimate species and numbers potentially exposed to oil and displaced by habitat alteration in the affected area. Of the 43 avian species observed, 20 are considered protected by European Community laws. The most abundant species were passero domestico, fringuello, cornacchia grigia, rondine, piccione torraiolo, and cardellino. These species likely suffered the greatest losses due to inhalation of volatile aromatics, dermal loading of oil, and/or habitat loss in the affected area. Based on CHARM model outputs, inhalation exposures to volatile aromatics and oil aerosols occurred above LOELs for all receptors within 2 km of the blowout. The most significant exposure pathway to large birds was dermal loading, which likely exceeded LC50 levels within 900m of the well. Terrestrial insects seldom contained detectable levels of PAHs, consistent with their shorter life span and residence time in the contaminated area. The highest concentrations of PAHs were found in dike vegetation, frogs, and benthic invertebrates. Ingestion exposures of woodmice to PAHs exceeded toxic reference levels at one site and mice had EHQ = >1 at soil PAH concentrations >4.2 mg/kg. Based on known body burdens causing narcotic response, neither fish nor benthic invertebrates experienced toxic consequences from exposure to PAHs in irrigation canal sediments

  1. Blowout Surge due to Interaction between a Solar Filament and Coronal Loops

    Energy Technology Data Exchange (ETDEWEB)

    Li, Haidong; Jiang, Yunchun; Yang, Jiayan; Yang, Bo; Xu, Zhe; Bi, Yi; Hong, Junchao; Chen, Hechao [Yunnan Observatories, Chinese Academy of Sciences, 396 Yangfangwang, Guandu District, Kunming, 650216 (China); Qu, Zhining, E-mail: lhd@ynao.ac.cn [Department of Physics, School of Science, Sichuan University of Science and Engineering, Zigong 643000 (China)

    2017-06-20

    We present an observation of the interaction between a filament and the outer spine-like loops that produces a blowout surge within one footpoint of large-scale coronal loops on 2015 February 6. Based the observation of the AIA 304 and 94 Å, the activated filament is initially embedded below a dome of a fan-spine configuration. Due to the ascending motion, the erupting filament reconnects with the outer spine-like field. We note that the material in the filament blows out along the outer spine-like field to form the surge with a wider spire, and a two-ribbon flare appears at the site of the filament eruption. In this process, small bright blobs appear at the interaction region and stream up along the outer spine-like field and down along the eastern fan-like field. As a result, a leg of the filament becomes radial and the material in it erupts, while another leg forms the new closed loops. Our results confirm that the successive reconnection occurring between the erupting filament and the coronal loops may lead to a strong thermal/magnetic pressure imbalance, resulting in a blowout surge.

  2. On a Solar Blowout Jet: Driving Mechanism and the Formation of Cool and Hot Components

    Science.gov (United States)

    Shen, Yuandeng; Liu, Ying D.; Su, Jiangtao; Qu, Zhining; Tian, Zhanjun

    2017-12-01

    We present observations of a blowout jet that experienced two distinct ejection stages. The first stage started from the emergence of a small positive magnetic polarity, which was cancelled by the nearby negative magnetic field and caused the rising of a mini-filament and its confining loops. This further resulted in a small jet due to the magnetic reconnection between the rising confining loops and the overlying open field. The second ejection stage was mainly due to successive removal of the confining field by reconnection: the filament erupted, and the erupting cool filament material directly combined with the hot jet that originated form the reconnection region and therefore formed the cool and hot components of the blowout jet. During the two ejection stages, cool Hα jets are also observed cospatial with their coronal counterparts, but their appearance times are earlier by a few minutes than those of the hot coronal jets. The hot coronal jets are therefor possibly caused by the heating of the cool Hα jets or the rising of the reconnection height from the chromosphere to the corona. The scenario that magnetic reconnection occurred between the confining loops and the overlying open loops is supported by many observational facts, including the bright patches on both sides of the mini-filament, hot plasma blobs along the jet body, and periodic metric radio type III bursts at the very beginnings of the two stages. The evolution and characteristics of these features show the detailed nonlinear process in magnetic reconnection.

  3. 30 CFR 250.1610 - Blowout preventer systems and system components.

    Science.gov (United States)

    2010-07-01

    ... as specified under paragraphs (e) and (f) of this section. The pipe rams shall be of proper size to fit the drill pipe in use. (c) Working pressure. The working-pressure rating of any BOP shall exceed... of hydraulic operations if rig air is lost. (2) An automatic backup to the accumulator system. The...

  4. 30 CFR 250.516 - Blowout preventer system tests, inspections, and maintenance.

    Science.gov (United States)

    2010-07-01

    ... District Manager may require testing every 7 days if conditions or BOP performance warrant. (b) BOP test... between control stations and pods. If a control station or pod is not functional, you must suspend further... at least every 30 days; (5) Function test annulars and rams every 7 days; (6) Pressure-test variable...

  5. ROV: improving remotely operated vehicle (ROV) intervention capabilities for blowout preventer override systems

    Energy Technology Data Exchange (ETDEWEB)

    Lazar, Stephen [Christopher S. Mancini, Tomball, TX (United States)

    2012-07-01

    Events during 2010 have focused attention on increased ROV/BOP Intervention capabilities and standardization of BOP/ROV interfaces in the oil and gas offshore industry. Currently no enforced set standards for ROV intervention panels or manifold types for use on BOP Override systems are specified. The industry offers multiple configurations at present. This abstract will discuss the advantages and disadvantages of the various configurations in existence, trending toward suggested industry standards taking shape as requirements in the near term. Standards for the offshore industry or a set specification must be made to increase safety and functionality of BOP control systems. To date, ROV override capabilities have been added to existing engineered BOP systems. BOP designed closing times were not a critical consideration, only that the access was there to allow for ROV override. Increased ROV flow and pressure capabilities: no current minimum flow requirements for Emergency BOP Override pumps are established. Based on stack valving and configuration, a minimum, 7 gpm may be required to shift valving fully to allow BOP operator function. IADC/API minimum requirements may be proposed at 10 gpm at 3000psi. Based on shear pressures exceeding 3000psi, pressures of 5000psi should be considered. Current intervention skids/pump capabilities will be required if ROVs must achieve API 16D BOP minimum closing times. Remote or isolated accumulation for increased intervention capabilities offers possibilities when ANY ROV of opportunity can trigger a function (such as small inspection type ROVs). Increased volumes will be required. This is critical in functioning stack rams with an ROV of opportunity to achieve API 16D closing times. We now understand that higher flows and pressures are required along with standardization of stab types. Current recommendations: API 17H Hi-Flow manifolds should be added to essential ROV overrides. ROV skids will have a minimum requirement of 10gpm at 3000psi, but should have capabilities to achieve 5000psi and carry enough fluid volume to perform sub sea BOP ram function. Also, any additional isolated accumulator volume would be tied to ANY ROV of opportunity to override the BOP in an emergency situation. (author)

  6. Flow and sediment transport dynamics in a slot and cauldron blowout and over a foredune, Mason Bay, Stewart Island (Rakiura), NZ

    Science.gov (United States)

    Hesp, Patrick A.; Hilton, Michael; Konlecher, Teresa

    2017-10-01

    This study is the first to simultaneously compare flow and sediment transport through a blowout and over an adjacent foredune, and the first study of flow within a highly sinuous, slot and cauldron blowout. Flow across the foredune transect is similar to that observed in other studies and is primarily modulated by across-dune vegetation density differences. Flow within the blowout is highly complex and exhibits pronounced accelerations and jet flow. It is characterised by marked helicoidal coherent vortices in the mid-regions, and topographically vertically forced flow out of the cauldron portion of the blowout. Instantaneous sediment transport within the blowout is significant compared to transport onto and/or over the adjacent foredune stoss slope and ridge, with the blowout providing a conduit for suspended sediment to reach the downwind foredune upper stoss slope and crest. Medium term (4 months) aeolian sedimentation data indicates sand is accumulating in the blowout entrance while erosion is taking place throughout the majority of the slot, and deposition is occurring downwind of the cauldron on the foredune ridge. The adjacent lower stoss slope of the foredune is accreting while the upper stoss slope is slightly erosional. Longer term (16 months) pot trap data shows that the majority of foredune upper stoss slope and crest accretion occurs via suspended sediment delivery from the blowout, whereas the majority of the suspended sediment arriving to the well-vegetated foredune stoss slope is deposited on the mid-stoss slope. The results of this study indicate one mechanism of how marked alongshore foredune morphological variability evolves due to the role of blowouts in topographically accelerating flow, and delivering significant aeolian sediment downwind to relatively discrete sections of the foredune.

  7. Findings of a retrospective survey conducted after the Lodgepole sour gas well blowout to determine if the natural occurrence of bovine abortions and fetal anomalies increased

    International Nuclear Information System (INIS)

    Klavano, G.G.; Christian, R.G.

    1992-01-01

    A survey was conducted after the Lodgepole sour gas well blowout of October 1982 to determine if the incident changed the number and type of bovine abortions and abnormal bovine feti submitted to the diagnostic laboratory from the blowout area. The records of the total number of bovine feti submitted were compared between three areas to determine if there was a significant difference between the areas closer to the well site and the larger total area. No changes or trends could be ascribed to the well blowout. 2 refs., 5 tabs

  8. Blow-out limits of nonpremixed turbulent jet flames in a cross flow at atmospheric and sub-atmospheric pressures

    KAUST Repository

    Wang, Qiang

    2015-07-22

    The blow-out limits of nonpremixed turbulent jet flames in cross flows were studied, especially concerning the effect of ambient pressure, by conducting experiments at atmospheric and sub-atmospheric pressures. The combined effects of air flow and pressure were investigated by a series of experiments conducted in an especially built wind tunnel in Lhasa, a city on the Tibetan plateau where the altitude is 3650 m and the atmospheric pressure condition is naturally low (64 kPa). These results were compared with results obtained from a wind tunnel at standard atmospheric pressure (100 kPa) in Hefei city (altitude 50 m). The size of the fuel nozzles used in the experiments ranged from 3 to 8 mm in diameter and propane was used as the fuel. It was found that the blow-out limit of the air speed of the cross flow first increased (“cross flow dominant” regime) and then decreased (“fuel jet dominant” regime) as the fuel jet velocity increased in both pressures; however, the blow-out limit of the air speed of the cross flow was much lower at sub-atmospheric pressure than that at standard atmospheric pressure whereas the domain of the blow-out limit curve (in a plot of the air speed of the cross flow versus the fuel jet velocity) shrank as the pressure decreased. A theoretical model was developed to characterize the blow-out limit of nonpremixed jet flames in a cross flow based on a Damköhler number, defined as the ratio between the mixing time and the characteristic reaction time. A satisfactory correlation was obtained at relative strong cross flow conditions (“cross flow dominant” regime) that included the effects of the air speed of the cross flow, fuel jet velocity, nozzle diameter and pressure.

  9. The predictive factors of diplopia and extraocular movement limitations in isolated pure blow-out fracture.

    Science.gov (United States)

    Kasaee, Abolfazl; Mirmohammadsadeghi, Arash; Kazemnezhad, Fatemeh; Eshraghi, Bahram; Akbari, Mohammad Reza

    2017-03-01

    To evaluate the predictive factors for development of diplopia and extraocular muscle movement (EOM) limitations in the patients with isolated pure blow-out fracture. One hundred thirty-two patients with isolated pure blow-out fracture were included. The diagnosis was done with computed tomography scan. Possible predictive factors were analyzed with logistic regression. The cases that underwent surgery were assigned in the surgical group, and other cases were assigned in the non-surgical group. Receiver operating characteristic (ROC) curve analysis was used in the surgical group to evaluate the power of time interval from trauma to the surgery to predict persistence of 6 months postoperative diplopia and EOM limitation. At the first visit, 45 of 60 cases (75%) in the surgical group and 15 of 72 cases (20.8%) in the nonsurgical group had diplopia. After 6 months follow-up, 7 cases (11.7%) in the surgical group and 1 case (1.4%) in the nonsurgical group had persistent diplopia. Type of fracture was significantly associated with first visit diplopia (P = 0.01) and EOM limitations (P = 0.06). In the surgical group, type of fracture (P = 0.02 for both) and time interval from trauma to the surgery (P = 0.006 and 0.004, respectively) were significantly associated with 1 month diplopia and EOM limitations. Only time interval from trauma to the surgery (P = 0.04) was significantly associated with 3 months EOM limitation. In the ROC curve analysis, if the surgery was done before 4.5 (sensitivity = 87.5% and specificity = 61.3%) and 7.5 (sensitivity = 87.5% and specificity = 66.9%) days, risk of 6 months postoperative diplopia and EOM limitation was reduced, respectively. In the early postoperative period, a higher rate of diplopia was observed in the patients with combined inferior and medial wall fractures and longer time intervals from trauma to the surgery. The best time for blow-out fracture surgery was within 4.5 days after the trauma.

  10. Prevention

    Science.gov (United States)

    ... Error processing SSI file About Heart Disease & Stroke Prevention Heart disease and stroke are an epidemic in ... secondhand smoke. Barriers to Effective Heart Disease & Stroke Prevention Many people with key risk factors for heart ...

  11. Short-range wakefields generated in the blowout regime of plasma-wakefield acceleration

    Science.gov (United States)

    Stupakov, G.

    2018-04-01

    In the past, calculation of wakefields generated by an electron bunch propagating in a plasma has been carried out in linear approximation, where the plasma perturbation can be assumed small and plasma equations of motion linearized. This approximation breaks down in the blowout regime where a high-density electron driver expels plasma electrons from its path and creates a cavity void of electrons in its wake. In this paper, we develop a technique that allows us to calculate short-range longitudinal and transverse wakes generated by a witness bunch being accelerated inside the cavity. Our results can be used for studies of the beam loading and the hosing instability of the witness bunch in plasma-wakefield and laser-wakefield acceleration.

  12. Longitudinal phase space characterization of the blow-out regime of rf photoinjector operation

    Directory of Open Access Journals (Sweden)

    J. T. Moody

    2009-07-01

    Full Text Available Using an experimental scheme based on a vertically deflecting rf deflector and a horizontally dispersing dipole, we characterize the longitudinal phase space of the beam in the blow-out regime at the UCLA Pegasus rf photoinjector. Because of the achievement of unprecedented resolution both in time (50 fs and energy (1.0 keV, we are able to demonstrate some important properties of the beams created in this regime such as extremely low longitudinal emittance, large temporal energy chirp, and the degrading effects of the cathode image charge in the longitudinal phase space which eventually leads to poorer beam quality. All of these results have been found in good agreement with simulations.

  13. Ion response to relativistic electron bunches in the blowout regime of laser-plasma accelerators.

    Science.gov (United States)

    Popov, K I; Rozmus, W; Bychenkov, V Yu; Naseri, N; Capjack, C E; Brantov, A V

    2010-11-05

    The ion response to relativistic electron bunches in the so called bubble or blowout regime of a laser-plasma accelerator is discussed. In response to the strong fields of the accelerated electrons the ions form a central filament along the laser axis that can be compressed to densities 2 orders of magnitude higher than the initial particle density. A theory of the filament formation and a model of ion self-compression are proposed. It is also shown that in the case of a sharp rear plasma-vacuum interface the ions can be accelerated by a combination of three basic mechanisms. The long time ion evolution that results from the strong electrostatic fields of an electron bunch provides a unique diagnostic of laser-plasma accelerators.

  14. Role of Negative Orbit Vector in Orbital Blow-Out Fractures.

    Science.gov (United States)

    Choi, Soo Youn; Lee, Hwa; Baek, Sehyun

    2017-11-01

    Negative orbit vector is defined as the most anterior globe portion protrudes past the malar eminence. The aim of the study was to evaluate the relationship between negative orbit vector and blow-out fracture location analyzing the distance between the anterior corneal surface and orbital bone with facial soft tissue in medial and orbital floor blow out fractures using orbital computed tomography (CT). Seventy-seven patients diagnosed with blow-out fractures involving the medial or orbital floor were included. Distances from the anterior cornea to lower lid fat, inferior orbital wall, inferior orbital rim, and anterior cheek mass were measured using orbital CT scans. The proportion of negative orbit vector and measured distanced were compared between medial wall fracture and orbital floor fracture. Medical records including age, sex, concomitant ophthalmic diagnosis, and nature of injury were retrospectively reviewed. Forty-three eyes from 43 patients diagnosed with medial wall fracture and 34 eyes from 34 patients diagnosed with orbital floor fracture were included. There was no significant difference in the distance from the anterior cornea to lower lid fat (P = 0.574), inferior orbital wall (P = 0.494), or orbital rim (P = 0.685). The distance from anterior cornea to anterior cheek mass was significantly different in medial wall fracture (-0.19 ± 3.49 mm) compared with orbital floor fracture (-1.69 ± 3.70 mm), P = 0.05. Negative orbit vector was significantly higher in orbital floor fracture patients (24 among 34 patients, 70.6%) compared with those with medial wall fractures (19 among 43 patients, 44.2%) (P = 0.04). Patients presenting with a negative orbit vector relationship when the most anterior portion of globe protruded past the anterior cheek mass and malar eminence were more likely to develop orbital floor fracture than medial wall fracture.

  15. A novel integrated approach for path following and directional stability control of road vehicles after a tire blow-out

    Science.gov (United States)

    Wang, Fei; Chen, Hong; Guo, Konghui; Cao, Dongpu

    2017-09-01

    The path following and directional stability are two crucial problems when a road vehicle experiences a tire blow-out or sudden tire failure. Considering the requirement of rapid road vehicle motion control during a tire blow-out, this article proposes a novel linearized decoupling control procedure with three design steps for a class of second order multi-input-multi-output non-affine system. The evaluating indicators for controller performance are presented and a performance related control parameter distribution map is obtained based on the stochastic algorithm which is an innovation for non-blind parameter adjustment in engineering implementation. The analysis on the robustness of the proposed integrated controller is also performed. The simulation studies for a range of driving conditions are conducted, to demonstrate the effectiveness of the proposed controller.

  16. Impact of an historic underground gas well blowout on the current methane chemistry in a shallow groundwater system.

    Science.gov (United States)

    Schout, Gilian; Hartog, Niels; Hassanizadeh, S Majid; Griffioen, Jasper

    2018-01-09

    Blowouts present a small but genuine risk when drilling into the deep subsurface and can have an immediate and significant impact on the surrounding environment. Nevertheless, studies that document their long-term impact are scarce. In 1965, a catastrophic underground blowout occurred during the drilling of a gas well in The Netherlands, which led to the uncontrolled release of large amounts of natural gas from the reservoir to the surface. In this study, the remaining impact on methane chemistry in the overlying aquifers was investigated. Methane concentrations higher than 10 mg/L ( n = 12) were all found to have δ 13 C-CH 4 values larger than -30‰, typical of a thermogenic origin. Both δ 13 C-CH 4 and δD-CH 4 correspond to the isotopic composition of the gas reservoir. Based on analysis of local groundwater flow conditions, this methane is not a remnant but most likely the result of ongoing leakage from the reservoir as a result of the blowout. Progressive enrichment of both δ 13 C-CH 4 and δD-CH 4 is observed with increasing distance and decreasing methane concentrations. The calculated isotopic fractionation factors of ε C = 3 and ε D = 54 suggest anaerobic methane oxidation is partly responsible for the observed decrease in concentrations. Elevated dissolved iron and manganese concentrations at the fringe of the methane plume show that oxidation is primarily mediated by the reduction of iron and manganese oxides. Combined, the data reveal the long-term impact that underground gas well blowouts may have on groundwater chemistry, as well as the important role of anaerobic oxidation in controlling the fate of dissolved methane. Copyright © 2018 the Author(s). Published by PNAS.

  17. MINIFILAMENT ERUPTION AS THE SOURCE OF A BLOWOUT JET, C-CLASS FLARE, AND TYPE-III RADIO BURST

    Energy Technology Data Exchange (ETDEWEB)

    Hong, Junchao; Jiang, Yunchun; Yang, Jiayan; Li, Haidong; Xu, Zhe, E-mail: hjcsolar@ynao.ac.cn [Yunnan Observatories, Chinese Academy of Sciences, 396 Yangfangwang, Guandu District, Kunming, 650216 (China); Center for Astronomical Mega-Science, Chinese Academy of Sciences, 20A Datun Road, Chaoyang District, Beijing, 100012 (China)

    2017-01-20

    We report a strong minifilament eruption associated with Geostationary Operational Environmental Satellite C1.6 flare and WIND type-III radio burst. The minifilament, which lies at the periphery of active region 12259, is detected by H α images from the New Vacuum Solar Telescope. The minifilament undergoes a partial and then a full eruption. Simultaneously, two co-spatial jets are successively observed in extreme ultraviolet images from the Solar Dynamic Observatory . The first jet exhibits a typical fan-spine geometry, suggesting that the co-spatial minifilament is possibly embedded in magnetic fields with a fan-spine structure. However, the second jet displays blowout morphology when the entire minifilament erupts upward, leaving behind a hard X-ray emission source in the base. Differential emission measure analyses show that the eruptive region is heated up to about 4 MK during the fan-spine jet, while up to about 7 MK during the blowout jet. In particular, the blowout jet is accompanied by an interplanetary type-III radio burst observed by WIND /WAVES in the frequency range from above 10 to 0.1 MHz. Hence, the minifilament eruption is correlated with the interplanetary type-III radio burst for the first time. These results not only suggest that coronal jets can result from magnetic reconnection initiated by erupting minifilaments with open fields, but also shed light on the potential influence of minifilament eruption on interplanetary space.

  18. Field investigation finding of long term effects in Alberta livestock exposed to acid forming emissions: Survey following the Lodgepole blowout

    International Nuclear Information System (INIS)

    Harris, B.

    1992-01-01

    The effects of the Amoco Dome Brazeau River (Lodgepole) sour gas well blowout of October 1982 on livestock are reviewed. For 26 days the well was not on fire, with condensate falling on the area immediately surrounding the well site, while during the 41 days the well was burning, sour gas and condensate underwent combustion in the intense fire. Many local residents noted problems with their farm animals during the blowout period. A study was undertaken to evaluate opinions and attitudes of livestock producers about the long-term effects of the Lodgepole blowout. Contact was made with producers in the area of concern, and a worksheet was developed to aid in the collection of data. Information gathered was based on producer records, auction sale tickets, sales receipts and memory. Twenty livestock producers were interviewed, representing 1,700 head of beef cows, 40 dairy cows and 21 sows. Concerns expressed by producers included birth weight, birth defects or stillbirth, scours and problem calves, poor growth, open or dry cows, abortions, late calves, poor growth in replacement heifers, abnormal hair, and abnormal breeding. 1 tab

  19. Prevention

    Science.gov (United States)

    ... Contact Aging & Health A to Z Find a Geriatrics Healthcare Professional Medications & Older Adults Making Your Wishes ... Prevention Hearing Loss Heart Attack High Blood Pressure Nutrition Osteoporosis Shingles Skin Cancer Related News Quitting Smoking, ...

  20. Outcomes of Orbital Blow-Out Fracture Repair Performed Beyond 6 Weeks After Injury.

    Science.gov (United States)

    Scawn, Richard L; Lim, Lee Hooi; Whipple, Katherine M; Dolmetsch, Angela; Priel, Ayelet; Korn, Bobby; Kikkawa, Don O

    2016-01-01

    Blow-out fractures cause expansion of the bony orbital walls and prolapse of orbital contents in the sinuses. This can result in diplopia, enophthalmos, and hypoglobus. Early surgical repair has been previously recommended, however, recent reports show that delayed surgery can also be effective. In this study, the clinical and functional outcome of patients with delayed presentation and blow-out fracture repair beyond 6 weeks after injury are described. This is a noncomparative retrospective study. Medical records of adult patients with late orbital floor fracture repair performed by 4 surgeons from April 2008 to January 2014 at 3 tertiary referral centers were reviewed. All repairs were performed more than 6 weeks from the time of injury. Patients with prior orbital fracture repair surgery were excluded. Twenty patients were included in the study. The duration from time of injury to surgery ranged from 7 weeks to 21 years with a mean of 19 months. Follow up ranged from 6 weeks to 56 months (mean 8 months). Mean age was 48 years (range, 25-80). Male to female ratio was 11:9. Surgery was performed on 10 right eyes and 10 left eyes. CT imaging demonstrated 10 patients had isolated floor fractures, while the remaining 10 patients had combined floor and medial wall fractures. Four patients also had associated facial fractures that did not require surgery. Indications for surgery included enophthalmos of 2 mm or more (18 of 20) and/or significant diplopia within 30° of primary gaze (6 of 20). Mean pre- and postoperative enophthalmos was 2.4 ± 0.9 mm and 0.3 ± 0.2 mm, respectively, corresponding to a mean reduction in enophthalmos of 2.1 ± 1.2 mm (range, 1-5 mm). Four of 7 patients with hypoglobus ranging from 1.5 mm to 8 mm preoperatively had complete resolution postoperatively, the remaining 3 patients showed reduced hypoglobus. Of the 12 patients that had diplopia preoperatively in any position of gaze, 6 patients had complete resolution

  1. Flame blowout and pollutant emissions in vitiated combustion of conventional and bio-derived fuels

    Science.gov (United States)

    Singh, Bhupinder

    The widening gap between the demand and supply of fossil fuels has catalyzed the exploration of alternative sources of energy. Interest in the power, water extraction and refrigeration (PoWER) cycle, proposed by the University of Florida, as well as the desirability of using biofuels in distributed generation systems, has motivated the exploration of biofuel vitiated combustion. The PoWER cycle is a novel engine cycle concept that utilizes vitiation of the air stream with externally-cooled recirculated exhaust gases at an intermediate pressure in a semi-closed cycle (SCC) loop, lowering the overall temperature of combustion. It has several advantages including fuel flexibility, reduced air flow, lower flame temperature, compactness, high efficiency at full and part load, and low emissions. Since the core engine air stream is vitiated with the externally cooled exhaust gas recirculation (EGR) stream, there is an inherent reduction in the combustion stability for a PoWER engine. The effect of EGR flow and temperature on combustion blowout stability and emissions during vitiated biofuel combustion has been characterized. The vitiated combustion performance of biofuels methyl butanoate, dimethyl ether, and ethanol have been compared with n-heptane, and varying compositions of syngas with methane fuel. In addition, at high levels of EGR a sharp reduction in the flame luminosity has been observed in our experimental tests, indicating the onset of flameless combustion. This drop in luminosity may be a result of inhibition of processes leading to the formation of radiative soot particles. One of the objectives of this study is finding the effect of EGR on soot formation, with the ultimate objective of being able to predict the boundaries of flameless combustion. Detailed chemical kinetic simulations were performed using a constant-pressure continuously stirred tank reactor (CSTR) network model developed using the Cantera combustion code, implemented in C++. Results have

  2. Environmental legacy of an underground gas well blowout: long-term effects of gas and brine leakage on groundwater quality

    Science.gov (United States)

    Schout, Gilian; Hartog, Niels; Majid Hassanizadeh, S.; Griffioen, Jasper

    2017-04-01

    In 1965, a catastrophic underground blowout occurred during the drilling of a gas well in the village of Sleen, the Netherlands. The blowout led to the uncontrolled release of large amounts of natural gas and saline groundwater. Now, 50 years later, a number of nearby groundwater monitoring have been sampled to study the long term effects of this event on the groundwater composition of the overlying freshwater aquifers. The findings are used as an analogue for studying the potential adverse effects of hydraulic fracturing on groundwater quality. In total, 27 samples were taken and analysed for dissolved gas molecular and isotopic composition, major ion chemistry, water isotopes and stable chlorine isotope ratios. The resulting data show that concentrations of dissolved methane are still strongly elevated compared to background samples in a plume downstream of the blowout location. Isotopic data reveals the thermogenic nature of this plume; all samples with methane concentrations greater than 10 mg/l (n=12) had δC-CH4 values greater than -30‰ (VPDB), characteristic of thermogenic methane. The maximum distance at which thermogenic methane is observed is at approximately 500 meter downstream of the centre of the blowout. The progressive enrichment of both δ13C-CH4 and δ2D-CH4, that is observed with distance from the well and decreasing methane concentrations, presents strong evidence for the role of anaerobic methane oxidation (AOM) in limiting the spread of the dissolved methane plume. Low sulphate and increased Fe(II) and Mn(II) concentrations indeed suggest that multiple AOM pathways are involved in the natural attenuation of the dissolved methane plume. Chlorine concentrations were only elevated in a subset of wells in close proximity to the blowout location, indicating that the present-day effects of brine migration are minimal. Nevertheless, elevated Na/Cl ratio's in multiple wells reveal that freshening of the aquifer is still on-going. In summary, this

  3. Quantitative Risk Assessment (QRA) for an Underground Blowout Scenario in the Gulf of Mexico (GoM) Well

    Science.gov (United States)

    Tyagi, M.; Zulqarnain, M.

    2017-12-01

    Offshore oil and gas exploration and production operations, involve the use of some of the cutting edge and challenging technologies of the modern time. These technological complex operations involves the risk of major accidents as well, which have been demonstrated by disasters such as the explosion and fire on the UK production platform piper alpha, the Canadian semi-submersible drilling rig Ocean Ranger and the explosion and capsizing of Deepwater horizon rig in the Gulf of Mexico. By conducting Quantitative Risk Assessment (QRA), safety of various operations as well as their associated risks and significance during the entire life phase of an offshore project can be quantitatively estimated. In an underground blowout, the uncontrolled formation fluids from higher pressure formation may charge up shallower overlying low pressure formations or may migrate to sea floor. Consequences of such underground blowouts range from no visible damage at the surface to the complete loss of well, loss of drilling rig, seafloor subsidence or hydrocarbons discharged to the environment. These blowouts might go unnoticed until the over pressured sands, which are the result of charging from higher pressure reservoir due to an underground blowout. Further, engineering formulas used to estimate the fault permeability and thickness are very simple in nature and may add to uncertainty in the estimated parameters. In this study the potential of a deepwater underground blowout are assessed during drilling life phase of a well in Popeye-Genesis field reservoir in the Gulf of Mexico to estimate the time taken to charge a shallower zone to its leak-off test (LOT) value. Parametric simulation results for selected field case show that for relatively high permeability (k = 40mD) fault connecting a deep over-pressured zone to a shallower low-pressure zone of similar reservoir volumes, the time to recharge the shallower zone up to its threshold LOT value is about 135 years. If the ratio of the

  4. Prevention

    DEFF Research Database (Denmark)

    Halken, S; Høst, A

    2001-01-01

    , breastfeeding should be encouraged for 4-6 months. In high-risk infants a documented extensively hydrolysed formula is recommended if exclusive breastfeeding is not possible for the first 4 months of life. There is no evidence for preventive dietary intervention neither during pregnancy nor lactation...... populations. These theories remain to be documented in proper, controlled and prospective studies. Breastfeeding and the late introduction of solid foods (>4 months) is associated with a reduced risk of food allergy, atopic dermatitis, and recurrent wheezing and asthma in early childhood. In all infants....... Preventive dietary restrictions after the age of 4-6 months are not scientifically documented....

  5. Endovascular treatment paradigm of carotid blowout syndrome: Review of 8-years experience

    Energy Technology Data Exchange (ETDEWEB)

    Wan, Wing Suet, E-mail: wws351@ha.org.hk [Department of Radiology, Tuen Mun Hospital, Tuen Mun (Hong Kong); Lai, Vincent, E-mail: vincentlai@hkcr.org [Department of Radiology, Tuen Mun Hospital, Tuen Mun (Hong Kong); Lau, Hin Yue, E-mail: lhy460@ha.org.hk [Department of Radiology, Tuen Mun Hospital, Tuen Mun (Hong Kong); Wong, Yiu Chung, E-mail: wongyc6@ha.org.hk [Department of Radiology, Tuen Mun Hospital, Tuen Mun (Hong Kong); Poon, Wai Lun, E-mail: poonwl@ha.org.hk [Department of Radiology, Tuen Mun Hospital, Tuen Mun (Hong Kong); Tan, Chong Boon, E-mail: tancb@ha.org.hk [Department of Radiology, Tuen Mun Hospital, Tuen Mun (Hong Kong)

    2013-01-15

    Objectives: Endovascular treatment is effective in treating carotid blowout syndrome (CBS). We reviewed our experience in addressing CBS over eight years and presented an account of the treatment paradigm and management algorithm. Method: All cases of CBS from 2003 to 2010 with endovascular treatment performed in our center were reviewed. 15 CBS in 14 patients were recruited. Based on our management algorithm, treatment regimen was stratified into deconstructive or constructive methods. Their clinical presentations, angiographic features, angiographic and clinical outcomes were reviewed. Results: 10 patients were treated with deconstructive method by means of permanent vessel occlusion (PVO) and 4 patients were treated with constructive method by means of placement of covered stent (n = 3) or flow diverting device (n = 1). Immediate hemostasis was achieved in all cases. 7 (50%) patients, in whom 5 treated with PVO and 2 with covered stent, had favorable outcomes and survived at a median follow-up period of 4 months (range: 1–84 months). Conclusion: Permanent vessel occlusion remains the gold standard of treatment and tends to show a favorable long-term outcome. Off-label use of covered stent and flow-diverting device can produce satisfactory results should balloon occlusion test fail, but long-term follow up would be required for definitive assessment.

  6. Research on Performance of H2 Rich Blowout Limit in Bluff-Body Burner

    Directory of Open Access Journals (Sweden)

    Hongtao Zheng

    2012-01-01

    Full Text Available In order to investigate H2 rich blowout limit at different blockage ratios and flow velocities, a CFD software FLUENT was used to simulate H2 burning flow field in bluff-body burner, and the software CHEMKIN was adopted to analyze the sensitivity of each elementary reaction. Composition Probability Density Function (C-PDF model was adopted to simulate H2 combustion field in turbulence flame. The numerical results show that reactions R2 and R9 possess the largest positive and negative temperature sensitivity. Temperature has a very important influence on these two reactions. When equivalence ratio is 1, the mixture is most ignitable, and the critical ignition temperature is 1550 K. There should be an optimal blockage ratio which can stabilize the flame best. When the blockage ratio remains unchanged, the relationship between H2 RBL and flow velocity is a logarithmic function. When the flow velocity remains unchanged, the relationship between H2 RBL and blockage ratio is a parabolic function. A complete extinction requires three phases: the temperature sudden decline in the main stream, the energy dissipation from the recirculation zone to the main stream, and the complete extinction of the flame.

  7. What happens between pure hydraulic and buckling mechanisms of blowout fractures?

    Science.gov (United States)

    Nagasao, Tomohisa; Miyamoto, Junpei; Shimizu, Yusuke; Jiang, Hua; Nakajima, Tatsuo

    2010-06-01

    The present study aims to evaluate how the ratio of the hydraulic and buckling mechanisms affects blowout fracture patterns, when these two mechanisms work simultaneously. Three-dimensional computer-aided-design (CAD)models were generated simulating ten skulls. To simulate impact, 1.2J was applied on the orbital region of these models in four patterns. Pattern 1: All the energy works to cause the hydraulic effect. Pattern 2: Two-thirds of the energy works to cause the hydraulic effect; one-third of the energy works to cause the buckling effect. Pattern 3: One-third of the energy works to cause the hydraulic effect; two-thirds of the energy works to cause the buckling effect. Pattern 4: The entire energy quantum works to cause the buckling effect. Using the finite element method, the regions where fractures were theoretically expected to occur were calculated and were compared between the four patterns. More fracture damage occurred for Pattern 1 than Pattern 2, and for Pattern 3 than for Pattern 4. The hydraulic and buckling mechanisms interact with one another. When these two mechanisms are combined, the orbital walls tend to develop serious fractures. Copyright (c) 2009 European Association for Cranio-Maxillo-Facial Surgery. Published by Elsevier Ltd. All rights reserved.

  8. Endovascular treatment paradigm of carotid blowout syndrome: Review of 8-years experience

    International Nuclear Information System (INIS)

    Wan, Wing Suet; Lai, Vincent; Lau, Hin Yue; Wong, Yiu Chung; Poon, Wai Lun; Tan, Chong Boon

    2013-01-01

    Objectives: Endovascular treatment is effective in treating carotid blowout syndrome (CBS). We reviewed our experience in addressing CBS over eight years and presented an account of the treatment paradigm and management algorithm. Method: All cases of CBS from 2003 to 2010 with endovascular treatment performed in our center were reviewed. 15 CBS in 14 patients were recruited. Based on our management algorithm, treatment regimen was stratified into deconstructive or constructive methods. Their clinical presentations, angiographic features, angiographic and clinical outcomes were reviewed. Results: 10 patients were treated with deconstructive method by means of permanent vessel occlusion (PVO) and 4 patients were treated with constructive method by means of placement of covered stent (n = 3) or flow diverting device (n = 1). Immediate hemostasis was achieved in all cases. 7 (50%) patients, in whom 5 treated with PVO and 2 with covered stent, had favorable outcomes and survived at a median follow-up period of 4 months (range: 1–84 months). Conclusion: Permanent vessel occlusion remains the gold standard of treatment and tends to show a favorable long-term outcome. Off-label use of covered stent and flow-diverting device can produce satisfactory results should balloon occlusion test fail, but long-term follow up would be required for definitive assessment

  9. Exposure of fish larvae to hydrocarbon concentration fields generated by subsurface blowouts

    International Nuclear Information System (INIS)

    Rye, Henrik; Johansen, Oeistein; Reed, Mark; Ekrol, Narve; Xiong Deqi

    2000-01-01

    As the oil activity outside the Norwegian coast moves towards north, the potential for conflict with the fishing industry increases. Reasons for this are the presence of spawning areas for important fish stocks like herring and cod, and also the technical development of subsurface solutions for the oil exploration, in-creasing the risks for the occurrence of subsurface blowouts. The paper explains how this potential for conflict can be described by means of numerical modelling techniques. The Haltenbanken area outside the western coast of Norway is selected as a field case. The modelling work involves underwater plume modelling as well as 3D modelling of ocean currents. The results from these modelling works are then combined with the modelling of the far-field transport and dilution of the underwater plume, and also the modelling of the spreading and transport of larvae from spawning areas. By combining the calculation of the concentration fields with the spreading calculations of the larvae, the exposure of a total larvae population (one year stock) can be estimated. The paper concludes that under unfavourable conditions, the overlap between the hydrocarbon concentration fields and the geographical distribution of larvae at its most vulnerable stage may cause a significant impact on a population level. (Author)

  10. Was the extreme and wide-spread marine oil-snow sedimentation and flocculent accumulation (MOSSFA) event during the Deepwater Horizon blow-out unique?

    Science.gov (United States)

    Vonk, Sophie M; Hollander, David J; Murk, AlberTinka J

    2015-11-15

    During the Deepwater Horizon blowout, thick layers of oiled material were deposited on the deep seafloor. This large scale benthic concentration of oil is suggested to have occurred via the process of Marine Oil Snow Sedimentation and Flocculent Accumulation (MOSSFA). This meta-analysis investigates whether MOSSFA occurred in other large oil spills and identifies the main drivers of oil sedimentation. MOSSFA was found to have occurred during the IXTOC I blowout and possibly during the Santa Barbara blowout. Unfortunately, benthic effects were not sufficiently studied for the 52 spills we reviewed. However, based on the current understanding of drivers involved, we conclude that MOSSFA and related benthic contamination may be widespread. We suggest to collect and analyze sediment cores at specific spill locations, as improved understanding of the MOSSFA process will allow better informed spill responses in the future, taking into account possible massive oil sedimentation and smothering of (deep) benthic ecosystems. Copyright © 2015 Elsevier Ltd. All rights reserved.

  11. Computationally efficient methods for modelling laser wakefield acceleration in the blowout regime

    Science.gov (United States)

    Cowan, B. M.; Kalmykov, S. Y.; Beck, A.; Davoine, X.; Bunkers, K.; Lifschitz, A. F.; Lefebvre, E.; Bruhwiler, D. L.; Shadwick, B. A.; Umstadter, D. P.; Umstadter

    2012-08-01

    Electron self-injection and acceleration until dephasing in the blowout regime is studied for a set of initial conditions typical of recent experiments with 100-terawatt-class lasers. Two different approaches to computationally efficient, fully explicit, 3D particle-in-cell modelling are examined. First, the Cartesian code vorpal (Nieter, C. and Cary, J. R. 2004 VORPAL: a versatile plasma simulation code. J. Comput. Phys. 196, 538) using a perfect-dispersion electromagnetic solver precisely describes the laser pulse and bubble dynamics, taking advantage of coarser resolution in the propagation direction, with a proportionally larger time step. Using third-order splines for macroparticles helps suppress the sampling noise while keeping the usage of computational resources modest. The second way to reduce the simulation load is using reduced-geometry codes. In our case, the quasi-cylindrical code calder-circ (Lifschitz, A. F. et al. 2009 Particle-in-cell modelling of laser-plasma interaction using Fourier decomposition. J. Comput. Phys. 228(5), 1803-1814) uses decomposition of fields and currents into a set of poloidal modes, while the macroparticles move in the Cartesian 3D space. Cylindrical symmetry of the interaction allows using just two modes, reducing the computational load to roughly that of a planar Cartesian simulation while preserving the 3D nature of the interaction. This significant economy of resources allows using fine resolution in the direction of propagation and a small time step, making numerical dispersion vanishingly small, together with a large number of particles per cell, enabling good particle statistics. Quantitative agreement of two simulations indicates that these are free of numerical artefacts. Both approaches thus retrieve the physically correct evolution of the plasma bubble, recovering the intrinsic connection of electron self-injection to the nonlinear optical evolution of the driver.

  12. Dynamic study of ocular movement with MR imaging in orbital blow-out fracture

    International Nuclear Information System (INIS)

    Aibara, Ryuichi; Kawakita, Seiji; Matsumoto, Yasushi; Sadamoto, Masanori; Yumoto, Eiji.

    1996-01-01

    Operative indications for orbital blow-out fracture (OBF) remain controversial. One of the major sources of this controversy is that an accurate diagnosis of ocular movement disturbances can not be made by conventional procedures such as the Hess screen test, traction test, or CT scan. Disturbances in ocular movement resulting from OBF can occur not only with entrapment of the extraocular muscle but also with intraorbital bleeding, edema, and/or a variety of other unclear factors. To obtain a more accurate diagnosis and to assist in the choice of treatment, ocular movement was examined using orbital 'cine mode' MR imaging. MR images were obtained in multiple phases of vertical and horizontal ocular movements by using the 'fast SE' capabilities of the SIERRA, GE-YMS MR scanner (1.5 Tesla, superconductive). The fixed eye method was applied to two normal volunteers and to patients with 'pure' OBF. Five marks for binocular fixation were affixed to the inner wall of the gantry: one at the primary position and four at secondary positions. While keeping the subject's eye focused on each of these marks for about 30 sec, MR images (head coil) of the axial view and bilateral oblique sagittal view along the optic nerve were carried out. In the normal volunteers, a good demonstration of smooth movement of the eye ball, extraocular muscles, and the optic nerve could be obtained. In the OBF patients, it was clearly observed that the disturbance in ocular movement was caused by poor extension of the external ocular muscles, specifically the inferior rectus muscle in the orbital floor fracture, and the internal rectus muscle in the medial wall fracture. These observations suggested that dynamic orbital imaging with MR would be extremely valuable in the assessment of disturbances of ocular movement in OBF. (author)

  13. Dynamic Data-Driven Prediction of Lean Blowout in a Swirl-Stabilized Combustor

    Directory of Open Access Journals (Sweden)

    Soumalya Sarkar

    2015-09-01

    Full Text Available This paper addresses dynamic data-driven prediction of lean blowout (LBO phenomena in confined combustion processes, which are prevalent in many physical applications (e.g., land-based and aircraft gas-turbine engines. The underlying concept is built upon pattern classification and is validated for LBO prediction with time series of chemiluminescence sensor data from a laboratory-scale swirl-stabilized dump combustor. The proposed method of LBO prediction makes use of the theory of symbolic dynamics, where (finite-length time series data are partitioned to produce symbol strings that, in turn, generate a special class of probabilistic finite state automata (PFSA. These PFSA, called D-Markov machines, have a deterministic algebraic structure and their states are represented by symbol blocks of length D or less, where D is a positive integer. The D-Markov machines are constructed in two steps: (i state splitting, i.e., the states are split based on their information contents, and (ii state merging, i.e., two or more states (of possibly different lengths are merged together to form a new state without any significant loss of the embedded information. The modeling complexity (e.g., number of states of a D-Markov machine model is observed to be drastically reduced as the combustor approaches LBO. An anomaly measure, based on Kullback-Leibler divergence, is constructed to predict the proximity of LBO. The problem of LBO prediction is posed in a pattern classification setting and the underlying algorithms have been tested on experimental data at different extents of fuel-air premixing and fuel/air ratio. It is shown that, over a wide range of fuel-air premixing, D-Markov machines with D > 1 perform better as predictors of LBO than those with D = 1.

  14. Indications for repositioning of blow-out fractures of the orbital floor based on new objective criteria - tissue protrusion volumometry.

    Science.gov (United States)

    Kovar, Daniel; Voldrich, Zdenek; Voska, Pavel; Lestak, Jan; Astl, Jaromir

    2017-12-01

    The otolaryngologist often meets with fractures of the orbital floor. The most serious complication is diplopia, arising as a result of herniation of the orbital contents, with or without fixation of the inferior rectus muscle. The aim of our work was to create a mathematical model to calculate the volume of prolapsed soft tissue of the orbit in blow-out fractures, as a factor in deciding on the need for surgical treatment. In a retrospective study (2007-2013), we evaluated 80 patients with blow-out fractures, divided into two equal groups: 40 conservatively treated and 40 surgically treated patients. We created the model by measuring the fracture lines and herniation of the orbital soft tissues in the coronal and sagittal sections from CT images, equivalent to half the volume of a rotating ellipsoid. According to the proposed model, posterior and anterior fractures with a prolapse volume above 500 mm 3 , and anteroposterior fractures with a volume over 1400 mm 3 , are indicated for surgery. The volume of prolapsed soft tissue relative to the location of the fracture is the main indicator for selecting the best treatment procedure immediately after injury.

  15. Well blowout rates and consequences in California Oil and Gas District 4 from 1991 to 2005: Implications for geological storage of carbon dioxide

    Energy Technology Data Exchange (ETDEWEB)

    Jordan, Preston; Jordan, Preston D.; Benson, Sally M.

    2008-05-15

    Well blowout rates in oil fields undergoing thermally enhanced recovery (via steam injection) in California Oil and Gas District 4 from 1991 to 2005 were on the order of 1 per 1,000 well construction operations, 1 per 10,000 active wells per year, and 1 per 100,000 shut-in/idle and plugged/abandoned wells per year. This allows some initial inferences about leakage of CO2 via wells, which is considered perhaps the greatest leakage risk for geological storage of CO2. During the study period, 9% of the oil produced in the United States was from District 4, and 59% of this production was via thermally enhanced recovery. There was only one possible blowout from an unknown or poorly located well, despite over a century of well drilling and production activities in the district. The blowout rate declined dramatically during the study period, most likely as a result of increasing experience, improved technology, and/or changes in safety culture. If so, this decline indicates the blowout rate in CO2-storage fields can be significantly minimized both initially and with increasing experience over time. Comparable studies should be conducted in other areas. These studies would be particularly valuable in regions with CO2-enhanced oil recovery (EOR) and natural gas storage.

  16. Was the extreme and widespread marine oil-snow sedimentation and flocculent accumulation (MOSSFA) event during the Deepwater Horizon blow-out unique?

    NARCIS (Netherlands)

    Vonk, S.M.; Hollander, D.J.; Murk, A.J.

    2015-01-01

    During the Deepwater Horizon blowout, thick layers of oiled material were deposited on the deep seafloor. This large scale benthic concentration of oil is suggested to have occurred via the process of Marine Oil Snow Sedimentation and Flocculent Accumulation (MOSSFA). This meta-analysis investigates

  17. Endovascular treatment of radiation-induced carotid blowout syndrome. Report of two cases

    International Nuclear Information System (INIS)

    Adachi, Akihiko; Kobayashi, Eiichi; Watanabe, Yoshiyuki; Yoneyama, Tomoko S.; Hayasaka, Michihiro; Suzuki, Homare; Okamoto, Yoshitaka; Saeki, Naokatsu

    2011-01-01

    Carotid Blowout Syndrome (CBS), or Carotid Artery Rupture (CAR), is a delayed complication with potentially fatal consequences occurring after the implementation of radiotherapy on head and neck tumors. In this report we describe two patients received endovascular treatment for severe hemorrhagic CBS developing 36 and 2 years, respectively, after radiotherapy. Both patients survived and responded positively to treatment. Case 1 was an 80-year-old woman found with minor hemorrhage near the bifurcation of the common carotid artery, 36 years after neck irradiation. She experienced frequent hemorrhagic events during the following years. Six years after the initial discovery of bleeding, she experienced massive hemorrhage, lapsed into shock, and was admitted to an Emergency Room. Connective tissue around the carotid artery was largely exposed due to neck skin defect. After hemorrhage was halted by manual compression, transient hemostasis was achieved with coil embolization of the aneurysm presumed to be the source of bleeding. Recurrent hemorrhage developed two weeks later with unraveled coil mass extrusion. Parent artery occlusion was performed by endovascular trapping, achieving permanent hemostasis. Case 2 presented massive nasal bleeding originating from the petrous segment of the internal carotid artery, 2 years after having been treated with heavy particle irradiation for olfactory neuroblastoma. Ischemic tolerance was confirmed by balloon occlusion test. Based on previous experiences, the bleeding was immediately halted by endovascular trapping. Both patients were subsequently discharged, free of new neurological symptoms. Emergent hemostatic treatment is required in CBS developing severe hemorrhage. However, within irradiation fields, temporal embolization devices hardly lead to complete resolution. This is due to the deteriorated condition of the vascular wall incapable to enduring the expansion power of coils, stents or balloons. Bypass grafting is also

  18. Observations of Beach-Dune Interaction in Man-Made Trough Blowouts

    Science.gov (United States)

    Ruessink, G.; Arens, B.; Kuipers, M.; Van Onselen, E.; Donker, J.

    2016-02-01

    Dunes act as an indispensable natural safety barrier against marine flooding, are valuable natural environments, serve for the production of drinking water, and offer recreational opportunities. The safety function has dominated dune management in the Netherlands, as well as on other developed shores, for decades. Measures to minimize the seaward loss of foredune sand under storm wave attack have resulted in over-stabilized foredunes and, accordingly, have impoverished natural beauty and degraded biodiversity. Stabilized foredunes are nowadays increasingly reactivated by removing vegetation and by digging trenches that resemble natural trough blowouts as corridors for aeolian transport from the beach into the backdunes. Crucially, such measures see the beach-dune system as an integrated landscape, reconnecting the beach, foredune and backdunes through aeolian transport. This raises questions on how much sand is actually blown into the dunes, which factors affect this amount, and how effective the large-scale dune-restoration measures are. This contribution addresses the evolution of five trenches that were dug through the 20-m high foredune at the Dutch National Park Zuid-Kennemerland. The width of the trenches was 50 - 100 m, their cross-dune length was 60 - 100 m, and the heighest part of the valley floor was 9 m above mean sea level. Since their construction in the 2012/2013 winter the trenches have been surveyed approximately 3 times per year using airborne laser scanning or UAV photography, resulting in a multi-temporal data set of Digital Elevation Models (DEMs) with a 1x1 m resolution. Difference maps illustrate that the sidewalls of the trenches have steepened during the first two years after construction, but that their width and the height of the valley floor have remained largely unaltered. Landward of the trenches large sedimentation lobes have formed, which with time have grown both laterally and vertically. Locally, the lobe thickness now exceeds 5 m

  19. Experimental investigation on ignition and lean blow-out performance of a multi-sector centrally staged combustor

    Science.gov (United States)

    Liu, Fuqiang; Zhang, Kaiyu; Mu, Yong; Liu, Cunxi; Yang, Jinhu; Xu, Gang; Zhu, Junqiang

    2014-10-01

    Improvement on extinction and pollution emission have become one of the most prominent research topics in gas turbine. It is widely recognized that the fuel/air mixture distribution in the recirculation zone is a critical factor in improving lean blow-out (LBO) and ignition. This paper proposed a new low emission scheme with fuel staged centrally and hybrid injector to improve flameout and emission. A relative small amount of fuel enters into central pilot airblast atomizer burner and then atomized by inner swirl air. The remaining majority of fuel is directly injected into vane channels of the primary swirler through a series of holes located on the sidewall of the main stage. Only pilot stage is fueled under ignition and lean flameout condition. The uniformity of fuel/air mixture distribution in the primary zone of the new design decreases NOX emission, meanwhile the fuel air mixture in pilot recirculation zone is locally rich to improve flameout and ignition. Experimental investigation was conducted to compare the new scheme with baseline design of dual-swirler in terms of LBO and ignition characteristics under the same condition in a multi-sector combustor. It is found that the fuel-air ratio of ignition limit and LBO decrease with the reference velocity increasing. The experimental results also show that the new scheme successfully improve lean blow-out and broaden the operation range of the combustor. The experimental results indicated that the centrally staged scheme can widen the operation boundary of the combustor and can provide guidance for design and optimization of combustion chamber.

  20. Application of Computer-Aided Designing and Rapid Prototyping Technologies in Reconstruction of Blowout Fractures of the Orbital Floor.

    Science.gov (United States)

    Tabaković, Saša Z; Konstantinović, Vitomir S; Radosavljević, Radivoje; Movrin, Dejan; Hadžistević, Miodrag; Hatab, Nur

    2015-07-01

    Traumatology of the maxillofacial region represents a wide range of different types of facial skeletal injuries and encompasses numerous treatment methods. Application of computer-aided design (CAD) in combination with rapid prototyping (RP) technologies and three-dimensional computed tomography techniques facilitates surgical therapy planning for efficient treatment. The purpose of this study is to determine the efficiency of individually designed implants of poly-DL-lactide (PDLLA) in the reconstruction of blowout fractures of the orbital floor. In the course of a surgical treatment, individually designed implants manufactured by CAD/RP technologies were used. Preoperative analysis and postoperative monitoring were conducted to evaluate the successfulness of orbital floor reconstruction using customized PDLLA implants, based on: presence of diplopia, paresthesia of infraorbital nerve, and presence of enophthalmos. In 6 of the 10 patients, diplopia completely disappeared immediately after surgical procedure. Diplopia gradually disappeared after 1 month in 3 patients, whereas in 1, it remained even after 6 months. In 7 patients, paresthesia disappeared within a month after surgery and in 3 patients within 2 months. Postoperative average Orbital volume (OV) of the injured side (13.333 ± 3.177) was significantly reduced in comparison with preoperative OV (15.847 ± 3.361) after reconstruction of the orbital floor with customized PDLLA implant (P orbit was not different compared with the OV of the uninjured orbit (P = 0.981). Reconstruction of blowout fractures of the orbital floor by an individually designed PDLLA implant combined with virtual preoperative modeling allows easier preoperative preparation and yields satisfactory functional and esthetic outcomes.

  1. Emissions due to the natural gas storage well-casing blowout at Aliso Canyon/SS-25

    Science.gov (United States)

    Herndon, Scott; Daube, Conner; Jervis, Dylan; Yacovitch, Tara; Roscioli, Joseph; Curry, Jason; Nelson, David; Knighton, Berk

    2017-04-01

    The pronounced increase in unconventional gas production in North America over the last fifteen years has intensified interest in understanding emissions and leaks in the supply chain from well pad to end use. Los Angeles, California is home 19 million consumers of natural gas in both industry and domestic end use. The well blowout at Aliso Canyon Natural Gas Storage Facility in the greater Los Angeles area was quantified using the tracer flux ratio method (TFR). Over 400 tracer plume transects were collected, each lasting 15-300 seconds, using instrumentation aboard a mobile platform on 25 days between December 21, 2015 and March 9, 2016. The leak rate from October 23rd to February 11th has been estimated here using a combination of this work (TFR) and the flight mass balance (FMB) data [Conley et al., 2016]. This estimate relies on the TFR data as the most specific SS-25 emission dataset. Scaling the FMB dataset, the leak rate is projected from Oct 23rd to December 21th. Adding up the emissions inferred and measured suggests a total leak burden of 86,022 ± 8,393 metric tons of methane. This work quantified the emissions during the "bottom kill" procedure which halted the primary emission leak. The ethane to methane enhancement ratio observed downwind of the leak site is consistent with the content of ethane in the natural gas at this site and provides definitive evidence that the methane emission rate quantified via tracer flux ratio is not due to a nearby landfill or other potential biogenic sources. Additionally, the TFR approach employed here is assessing only the leaks due to the SS-25 well blowout and excludes other possible emissions at the facility.

  2. A peculiar blow-out fracture of the inferior orbital wall complicated by extensive subcutaneous emphysema: A case report and review of the literature.

    Science.gov (United States)

    Rzymska-Grala, Iwona; Palczewski, Piotr; Błaż, Marcin; Zmorzyński, Michał; Gołębiowski, Marek; Wanyura, Hubert

    2012-04-01

    Blow-out fracture of the orbit is a common injury. However, not many cases are associated with massive subcutaneous emphysema. Even fewer cases are caused by minor trauma or are associated with barotrauma to the orbit due to sneezing, coughing, or vomiting. The authors present a case of blow-out fracture complicated by extensive subcutaneous and mediastinal emphysema that occurred without any obvious traumatic event. A 43-year-old man presented to the Emergency Department with a painful right-sided exophthalmos that he had noticed in the morning immediately after waking up. The patient also complained of diplopia. Physical examination revealed exophthalmos and crepitations suggestive of subcutaneous emphysema. The eye movements, especially upward gaze, were impaired. CT showed blow-out fracture of the inferior orbital wall with a herniation of the orbital soft tissues into the maxillary sinus. There was an extensive subcutaneous emphysema in the head and neck going down to the mediastinum. The patient did not remember any significant trauma to the head that could explain the above mentioned findings. At surgery, an inferior orbital wall fracture with a bony defect of 3×2 centimeter was found and repaired. Blow-out fractures of the orbit are usually a result of a direct trauma caused by an object with a diameter exceeding the bony margins of the orbit. In 50% of cases, they are complicated by orbital emphysema and in 4% of cases by herniation of orbital soft tissues into paranasal sinuses. The occurrence of orbital emphysema without trauma is unusual. In some cases it seems to be related to barotrauma due to a rapid increase in pressure in the upper airways during sneezing, coughing, or vomiting, which very rarely leads to orbital wall fracture. Computed tomography is the most accurate method in detecting and assessing the extent of orbital wall fractures.

  3. EUB post-incident report : Celtic Exploration Ltd. well servicing incident : blowout and fire, August 9, 2005

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2006-02-06

    A blowout and fire occurred on August 9, 2005 at a sour oil well during a routine well completion operation. The Alberta Energy and Utilities Board (EUB) was notified by Celtic Exploration Ltd., the well operator which implemented the emergency response plan (ERP). The 21 residents in the area were evacuated along with 100 campers from a nearby provincial park. The release concentration of hydrogen sulphide from the well was 4.5 moles/kilomole. The well was brought under control the next day by pumping calcium chloride water down the well. The evacuees were allowed to return. One fatality and 2 injuries were sustained by workers at the site and the service rig was destroyed by fire. Celtic assessed the incident as an uncontrollable event. The EUB conducted an investigation that focused on the cause of the incident, the risk to public safety, environmental impacts, and the conservation of the resource. The worker fatalities and injuries are being investigated by the Alberta Human Resources and Employment, Workplace Health and Safety. It was determined that the blowout was caused by an explosion within the swab tree assembly at the top of the well. An explosive situation was created when a mix of hydrocarbons and air was ignited. However, the source of ignition could not be definitively determined. The EUB also assessed the implementation of Celtic's ERP and the actions taken to manage the incident. The EUB determined that while several ERP measures were managed appropriately, some specific elements were deficient, particularly communication during the incident. About 228 cubic metres of contaminated soil was removed from the well lease to a waste site. The total production loss is estimated at 4 m{sup 3} of oil and 12,000 m{sup 3} of raw solution gas. Four follow-up actions that Celtic has committed to were described along with the EUB's directive 033 regarding well servicing and completions operations and requirements regarding the potential for explosive

  4. Application of fine managed pressure drilling technique in complex wells with both blowout and lost circulation risks

    Directory of Open Access Journals (Sweden)

    Ling Yan

    2015-03-01

    Full Text Available Fractured carbonate reservoirs are susceptible to blowout and lost circulation during drilling, which not only restricts drilling speed, but also poses big threat to well control. Moreover, there are few technical means available to reconstruct pressure balance in the borehole. Accordingly, the fine managed pressure drilling was used in the drilling of Well GS19 in the Qixia Formation with super-high pressure and narrow density window, which is a success: ① back pressure in the annular spaces will be adjusted to maintain a slightly over-balanced bottom-hole hydraulic pressure, and fluid level in the circulation tank will be kept in a slight dropping state to ensure that natural gas in the formation would not invade into the borehole in a massive volume; ② inlet drilling fluid density will be controlled at around 2.35 g/cm3, back pressures in the annular be maintained at 2–5 MPa, and bottom-hole pressure equivalent circulation density be controlled at 2.46–2.52 g/cm3; ③ during managed pressure drilling operations, if wellhead pressure exceeds or expects to exceed 7 MPa, semi-blind rams will be closed. Fluids will pass through the choke manifold of the rig to the choke manifold specifically for pressure control before entering gas/liquid separators to discharge gas; ④ during tripping back pressure will be kept at less than 5 MPa, volume of injected drilling fluid will be higher than the theoretical volume during tripping out, whereas the volume of returned drilling fluid will be higher than the theoretical volume during the out-tripping. This technique has been applied successfully in the drilling of the Qixia Formation, Liangshan Formation and Longmaxi Formation with a total footage of 216.60 m, as a good attempt in complicated wells with both blowout and lost circulation risks, which can provide valuable experiences and guidance for handling similar complexities in the future.

  5. Hydrocarbon composition and concentrations in the Gulf of Mexico sediments in the 3 years following the Macondo well blowout.

    Science.gov (United States)

    Babcock-Adams, Lydia; Chanton, Jeffrey P; Joye, Samantha B; Medeiros, Patricia M

    2017-10-01

    In April of 2010, the Macondo well blowout in the northern Gulf of Mexico resulted in an unprecedented release of oil into the water column at a depth of approximately 1500 m. A time series of surface and subsurface sediment samples were collected to the northwest of the well from 2010 to 2013 for molecular biomarker and bulk carbon isotopic analyses. While no clear trend was observed in subsurface sediments, surface sediments (0-3 cm) showed a clear pattern with total concentrations of n-alkanes, unresolved complex mixture (UCM), and petroleum biomarkers (terpanes, hopanes, steranes) increasing from May to September 2010, peaking in late November 2010, and strongly decreasing in the subsequent years. The peak in hydrocarbon concentrations were corroborated by higher organic carbon contents, more depleted Δ 14 C values and biomarker ratios similar to those of the initial MC252 crude oil reported in the literature. These results indicate that at least part of oil discharged from the accident sedimented to the seafloor in subsequent months, resulting in an apparent accumulation of hydrocarbons on the seabed by the end of 2010. Sediment resuspension and transport or biodegradation may account for the decrease in sedimented oil quantities in the years following the Macondo well spill. Copyright © 2017 Elsevier Ltd. All rights reserved.

  6. Well control in case of offshore blowout. Evaluation of proposed means for well shut-in, received from independent private persons

    Energy Technology Data Exchange (ETDEWEB)

    Westergaard, R.H.

    1980-12-01

    Three ideas from three independent persons are evaluated. The first one is a combined hot tapping, diverting and shut-in tool. It may, if worked out, have some merit provided the well has a suitable spool piece on which it can be used. The second proposal is a queer idea for shutting in a blowout. It is no good. The third one is a proposal to use a military tank as a platform for underwater capping. It may be worth consideration. 1 drawing.

  7. A Wrapping Method for Inserting Titanium Micro-Mesh Implants in the Reconstruction of Blowout Fractures

    Directory of Open Access Journals (Sweden)

    Tae Joon Choi

    2016-01-01

    Full Text Available Titanium micro-mesh implants are widely used in orbital wall reconstructions because they have several advantageous characteristics. However, the rough and irregular marginal spurs of the cut edges of the titanium mesh sheet impede the efficacious and minimally traumatic insertion of the implant, because these spurs may catch or hook the orbital soft tissue, skin, or conjunctiva during the insertion procedure. In order to prevent this problem, we developed an easy method of inserting a titanium micro-mesh, in which it is wrapped with the aseptic transparent plastic film that is used to pack surgical instruments or is attached to one side of the inner suture package. Fifty-four patients underwent orbital wall reconstruction using a transconjunctival or transcutaneous approach. The wrapped implant was easily inserted without catching or injuring the orbital soft tissue, skin, or conjunctiva. In most cases, the implant was inserted in one attempt. Postoperative computed tomographic scans showed excellent placement of the titanium micro-mesh and adequate anatomic reconstruction of the orbital walls. This wrapping insertion method may be useful for making the insertion of titanium micro-mesh implants in the reconstruction of orbital wall fractures easier and less traumatic.

  8. Transarterial endovascular treatment in the management of life-threatening carotid blowout syndrome in head and neck cancer patients: review of the literature.

    Science.gov (United States)

    Dequanter, D; Shahla, M; Paulus, P; Aubert, C; Lothaire, P

    2013-12-01

    Carotid blowout syndrome is a rare but devastating complication in patients with head and neck malignancy, and is associated with high morbidity and mortality. Bleeding from the carotid artery or its branches is a well-recognized complication following treatment or recurrence of head and neck cancer. It is an emergency situation, and the classical approach to save the patient's life is to ligate the carotid artery. But the surgical treatment is often technically difficult. Endovascular therapies were recently reported as good alternatives to surgical ligation. Retrospective review of three cases of acute or threatened carotid hemorrhage managed by endovascular therapies. Two patients presented with acute carotid blowout, and one patient with a sentinel bleed. Two patients had previously been treated with surgery and chemo radiation. One patient was treated by chemo radiation. Two had developed pharyngocutaneous fistulas, and one had an open necrosis filled wound that surrounded the carotid artery. In two patients, stent placement resolved the acute hemorrhage. In one patient, superselective embolization was done. Mean duration follow-up was 10.2 months. No patient had residual sequelae of stenting or embolization. Management of carotid blow syndrome is very critical and difficult. A multidisciplinary approach is very important in the management of carotid blow syndrome. Correct and suitable management can be life saving. An endovascular technique is a good and effective alternative with much lower morbidity rates than surgical repair or ligation. Copyright © 2013 Elsevier Masson SAS. All rights reserved.

  9. Blowout heroes : while his crew mate risked fire and falling rock to save him, Curly Slater fought right to the last breath

    Energy Technology Data Exchange (ETDEWEB)

    Louie, J.

    2008-11-15

    This article discussed a blow-out that resulted in a fatality at a drilling rig near Helmut, British Columbia (BC). The blowout caused a column of fire, drilling mud, and rock to explode from the floor of the rig. As the rig's derrickman was trapped when drilling mud caked onto his easy rider cable and froze the escape sliding mechanism. The derrickman fell and was left dangling by his harness. Crew members spotted him from a distance and returned to the site in order to unhook the easy rider cable from the manifold shack and move the steel line to a location that would allow him to descend more easily. The derrickman was unable to un-jam his fall arrestor. He freed himself using his own strength, seized a cable, but lost his grip while still 75 feet in the air and fell to his death. The tragedy was caused by the presence of a very large gas pocket encountered at an unusually shallow depth. Several of the crew members have been unable to continue working in the oil and gas industry, due to the psychological trauma of witnessing the man's death. The Canadian Association of Oilwell Drilling Contractors (CAODC) has issued awards of merit for the crew men who attempted to save the derrickman, and the entire crew will receive medals of bravery from the Governor General of Canada. 2 figs.

  10. Reconstruction of orbital floor blow-out fractures with autogenous iliac crest bone: a retrospective study including maxillofacial and ophthalmology perspectives.

    Science.gov (United States)

    O'Connell, John Edward; Hartnett, Claire; Hickey-Dwyer, Marie; Kearns, Gerard J

    2015-03-01

    This is a 10-year retrospective study of patients with an isolated unilateral orbital floor fracture reconstructed with an autogenous iliac crest bone graft. The following inclusion criteria applied: isolated orbital floor fracture without involvement of the orbital rim or other craniofacial injuries, pre-/post-operative ophthalmological/orthoptic follow-up, pre-operative CT. Variables recorded were patient age and gender, aetiology of injury, time to surgery, follow-up period, surgical morbidity, diplopia pre- and post-operatively (Hess test), eyelid position, visual acuity, and the presence of en-/or exophthalmos (Hertel exophthalmometer). Twenty patients met the inclusion criteria. The mean age was 29 years. The mean follow up period was 26 months. No patient experienced significant donor site morbidity. There were no episodes of post-operative infection or graft extrusion. Three patients had diplopia in extremes of vision post-operatively, but no interference with activities of daily living. One patient had post-operative enophthalmos. Isolated orbital blow-out fractures may be safely and predictably reconstructed using autogenous iliac crest bone. The rate of complications in the group of patients studied was low. The value of pre- and post-operative ophthalmology consultation cannot be underestimated, and should be considered the standard of care in all patients with orbitozygomatic fractures, in particular those with blow-out fractures. Copyright © 2014 European Association for Cranio-Maxillo-Facial Surgery. Published by Elsevier Ltd. All rights reserved.

  11. Delayed Development of Brain Abscesses Following Stent-Graft Placement in a Head and Neck Cancer Patient Presenting with Carotid Blowout Syndrome

    International Nuclear Information System (INIS)

    Oweis, Yaseen; Gemmete, Joseph J.; Chaudhary, Neeraj; Pandey, Aditya; Ansari, Sameer

    2011-01-01

    We describe the delayed development of intracranial abscesses following emergent treatment with a covered stent-graft for carotid blowout syndrome (CBS) in a patient with head and neck cancer. The patient presented with hemoptysis and frank arterial bleeding through the tracheostomy site. A self-expandable stent-graft was deployed across a small pseudoaneurysm arising from the right common carotid artery (RCCA) and resulted in immediate hemostasis. Three months later, the patient suffered a recurrent hemorrhage. CT of the neck demonstrated periluminal fluid around the caudal aspect of the stent-graft with intraluminal thrombus and a small pseudoaneurysm. Subsequently, the patient underwent a balloon test occlusion study and endovascular sacrifice of the RCCA and right internal carotid artery. MRI of the brain demonstrated at least four ring-enhancing lesions within the right cerebral hemisphere consistent with intracranial abscesses that resolved with broad-spectrum antibiotic coverage.

  12. Estudo do efeito de um "Riser Blowout" na perfuração de poços de petroleo em aguas profundas

    OpenAIRE

    Heitor Rodrigues de Paula Lima

    1991-01-01

    Resumo: Esta dissertação apresenta uma análise do comportamento da pressão dos fluidos que ocorre durante o especial acidente na perfuração de um poço submarino de petróleo conhecido como "Riser Blowout" ( * ). O modelo usado neste estudo baseia-se na solução do sistema de equações diferenciais parciais que governam o fluxo ascendente da mistura bifásica fluido de perfuração/ gás dentro do espaço anular entre a coluna de perfuração e o "marine riser". As perdas de carga devido a aceleração do...

  13. Anomalously High Recruitment of the 2010 Gulf Menhaden (Brevoortia patronus) Year Class: Evidence of Indirect Effects from the Deepwater Horizon Blowout in the Gulf of Mexico.

    Science.gov (United States)

    Short, Jeffrey W; Geiger, Harold J; Haney, J Christopher; Voss, Christine M; Vozzo, Maria L; Guillory, Vincent; Peterson, Charles H

    2017-07-01

    Gulf menhaden (Brevoortia patronus) exhibited unprecedented juvenile recruitment in 2010 during the year of the Deepwater Horizon well blowout, exceeding the prior 39-year mean by more than four standard deviations near the Mississippi River. Abundance of that cohort remained exceptionally high for two subsequent years as recruits moved into older age classes. Such changes in this dominant forage fish population can be most parsimoniously explained as consequences of release from predation. Contact with crude oil induced high mortality of piscivorous seabirds, bottlenose dolphin (Tursiops truncatus), waders, and other fish-eating marsh birds, all of which are substantial consumers of Gulf menhaden. Diversions of fresh water from the Mississippi River to protect coastal marshes from oiling depressed salinities, impairing access to juvenile Gulf menhaden by aquatic predators that avoid low-salinity estuarine waters. These releases from predation led to an increase of Gulf menhaden biomass in 2011 to 2.4 million t, or more than twice the average biomass of 1.1 million t for the decade prior to 2010. Biomass increases of this magnitude in a major forage fish species suggest additional trophically linked effects at the population-, trophic-level and ecosystem scales, reflecting an heretofore little appreciated indirect effect that may be associated with major oil spills in highly productive marine waters.

  14. Applications to marine disaster prevention spilled oil and gas tracking buoy system

    CERN Document Server

    2017-01-01

    This book focuses on the recent results of the research project funded by a Grant-in-Aid for Scientific Research (S) of the Japan Society for the Promotion of Science (No. 23226017) from FY 2011 to FY 2015 on an autonomous spilled oil and gas tracking buoy system and its applications to marine disaster prevention systems from a scientific point of view. This book spotlights research on marine disaster prevention systems related to incidents involving oil tankers and offshore platforms, approaching these problems from new scientific and technological perspectives. The most essential aspect of this book is the development of a deep-sea underwater robot for real-time monitoring of blowout behavior of oil and gas from the seabed and of a new type of autonomous surface vehicle for real-time tracking and monitoring of oil spill spread and drift on the sea surface using an oil sensor. The mission of these robots is to provide the simulation models for gas and oil blowouts or spilled oil drifting on the sea surface w...

  15. Evaluation of the outcomes of endovascular management for patients with head and neck cancers and associated carotid blowout syndrome of the external carotid artery

    International Nuclear Information System (INIS)

    Chang, F.-C.; Luo, C.-B.; Lirng, J.-F.; Lin, C.-J.; Wu, H.-M.; Hung, S.-C.; Guo, W.-Y.; Teng, M.M.H.; Chang, C.-Y.

    2013-01-01

    Aim: To evaluate factors related to the technical and haemostatic outcomes of endovascular management in patients with head and neck cancers (HNC) associated with carotid blowout syndrome (CBS) of the external carotid artery (ECA). Materials and methods: Between 2002 and 2011, 34 patients with HNC with CBS involving branches of the ECA underwent endovascular therapy. Treatment included embolization with microparticles, microcoils, or acrylic adhesives. Fisher's exact test was used to examine demographic features, clinical and angiographic severities, and clinical and imaging findings as predictors of endovascular management outcomes. Results: Technical success and immediate haemostasis were achieved in all patients. Technical complications were encountered in one patient (2.9%). Rebleeding occurred in nine patients (26.5%). Angiographic vascular disruption grading from slight (1) to severe (4) revealed that the 18 patients with acute CBS had scores of 2 (2/18, 11.1%), 3 (3/18, 16.7%), and 4 (13/18, 72.2%). The 16 patients with impending and threatened CBS had scores of 1 (1/16, 6.25%), 2 (5/16, 31.25%), and 3 (10/16, 62.5%; p = 0.0003). For the 25 patients who underwent preprocedural computed tomography (CT)/magnetic resonance imaging (MRI) examinations within 3 months of treatment, the agreement between clinical and imaging findings reached the sensitivity, specificity, and kappa values for recurrent tumours (1, 0.7143, 0.7826), soft-tissue defect (0.9091, 0.3333, 0.2424), and sinus tract/fistula (0.4737, 0, 0.4286). Conclusion: Endovascular management for patients with CBS of the ECA had high technical success and safety but was associated with high rebleeding rates. We suggest applying aggressive post-procedural follow-up and using preprocedural CT/MRI to enhance the periprocedural diagnosis

  16. Choking Prevention

    Science.gov (United States)

    ... Healthy Living Healthy Living Healthy Living Nutrition Fitness Sports Oral Health Emotional Wellness Growing Healthy Sleep Safety & Prevention Safety & Prevention Safety and Prevention Immunizations At Home ...

  17. Rape prevention

    Science.gov (United States)

    Date rape - prevention; Sexual assault - prevention ... Centers for Disease Control and Prevention website. Sexual assault and abuse and STDs. In: 2015 sexually transmitted diseases treatment guidelines 2015. www.cdc.gov/std/tg2015/sexual- ...

  18. Dengue Prevention

    Science.gov (United States)

    ... Address What's this? Submit What's this? Submit Button Prevention Recommend on Facebook Tweet Share Compartir This photograph ... medications to treat a dengue infection. This makes prevention the most important step, and prevention means avoiding ...

  19. Plague Prevention

    Science.gov (United States)

    ... Healthcare Professionals Clinicians Public Health Officials Veterinarians Prevention History of Plague Resources FAQ Prevention Recommend on Facebook Tweet Share Compartir Reduce rodent habitat around your ...

  20. Preventing Addiction.

    Science.gov (United States)

    Moore, Susan Fordney

    The purpose of this paper is to provide the beginning counselor with an overview of prevention concepts. Prevention is a relatively new emphasis in community efforts to stem the rising costs of substance abuse and other high-risk behaviors. The paper discusses agent, host, and environmental prevention models and how they relate to causal theories…

  1. Prevention: Exercise

    Medline Plus

    Full Text Available ... Steroid Injections Lumbar Zygapophysical (Facet) Joint Injections PREVENTION Lifestyle Choices 10 Tips for a Healthy Back Smoking Weight Patient Safety Exercise Strengthening Strengthen ...

  2. Prevention: Exercise

    Medline Plus

    Full Text Available ... Injections PREVENTION Lifestyle Choices 10 Tips for a Healthy Back Smoking Weight Patient Safety Exercise Strengthening Strengthen Your Core! Stretching/Flexibility Aerobic Exercise ...

  3. Prevention: Exercise

    Medline Plus

    Full Text Available ... Watchful Waiting and Education Injection Treatments for Spinal Pain Epidural Steroid Injections Lumbar Zygapophysical (Facet) Joint Injections PREVENTION Lifestyle Choices 10 ...

  4. Poison Prevention

    Science.gov (United States)

    ... Prevention Listen Español Text Size Email Print Share Poison Prevention Page Content Article Body Post the Poison Help number 1-800-222-1222 on the ... or empty container of a toxic substance, call Poison Help immediately. More than a million American children ...

  5. Preventive analgesia

    DEFF Research Database (Denmark)

    Dahl, Jørgen B; Kehlet, Henrik

    2011-01-01

    This paper will discuss the concepts of pre-emptive and preventive analgesia in acute and persistent postsurgical pain, based on the most recent experimental and clinical literature, with a special focus on injury-induced central sensitization and the development from acute to chronic pain. Recent...... of preventive analgesia for persistent postoperative pain are promising. However, clinicians must be aware of the demands for improved design of their clinical studies in order to get more conclusive answers regarding the different avenues for intervention. Summary: The concept of preventive analgesia is still...

  6. Prevention: Exercise

    Medline Plus

    Full Text Available ... Exercise Strength Training for the Elderly Other Back Pack Safety Pregnancy and Back Pain Preventing Osteoporosis Back ... in very slightly. Hold a ball directly in front of you. Keep your abdominal muscles tight and ...

  7. Prevention: Exercise

    Medline Plus

    Full Text Available ... Tips for a Healthy Back Smoking Weight Patient Safety Exercise Strengthening Strengthen Your Core! Stretching/Flexibility Aerobic ... Strength Training for the Elderly Other Back Pack Safety Pregnancy and Back Pain Preventing Osteoporosis Back Pain ...

  8. Prevent Shingles

    Science.gov (United States)

    ... Submit What's this? Submit Button Past Emails Prevent Shingles Language: English (US) Español (Spanish) Recommend on Facebook ... that can result in vision loss. Older Adults & Shingles As you get older, you are more likely ...

  9. Prevention: Exercise

    Medline Plus

    Full Text Available ... Epidural Steroid Injections Lumbar Zygapophysical (Facet) Joint Injections PREVENTION Lifestyle Choices 10 Tips for a Healthy Back Smoking Weight Patient Safety Exercise Strengthening Strengthen Your Core! ...

  10. Prevention: Exercise

    Medline Plus

    Full Text Available ... and Education Injection Treatments for Spinal Pain Epidural Steroid Injections Lumbar Zygapophysical (Facet) Joint Injections PREVENTION Lifestyle ... Z Spine Specialists Videos 9 for Spine Epidural Steroid Injections Exercise: The Backbone of Spine Treatment Spondylolisthesis ...

  11. Prevention: Exercise

    Medline Plus

    Full Text Available ... A SPECIALIST Prevention Strengthening Exercise Committee Exercise Committee Core Strengthening Many popular forms of exercise focus on ... acute pain, you should stop doing it. Transverse Core Strengthening This strengthens the muscles that cross from ...

  12. Prevention: Exercise

    Medline Plus

    Full Text Available ... Lumbar Zygapophysical (Facet) Joint Injections PREVENTION Lifestyle Choices 10 Tips for a Healthy Back Smoking Weight Patient ... the floor; rotate from side to side. Repeat 10 times. Check with your physician; if you are ...

  13. Prevention: Exercise

    Medline Plus

    Full Text Available ... Pregnancy and Back Pain Preventing Osteoporosis Back Pain Basics Book RESOURCES Patient ... popular forms of exercise focus on core strengthening, or building the muscles that provide support for your body. Pilates, yoga and martial arts ...

  14. HIV Prevention

    Centers for Disease Control (CDC) Podcasts

    2012-02-01

    Dr. Kevin Fenton, Director of CDC’s National Center for HIV/AIDS, Viral Hepatitis, STD, and TB Prevention, talks about steps people can take to protect their health from HIV.  Created: 2/1/2012 by National Center for HIV/AIDS, Viral Hepatitis, STD, and TB Prevention (NCHHSTP).   Date Released: 2/1/2012.

  15. Bullying Prevention

    Science.gov (United States)

    Kemp, Patrice

    2016-01-01

    The focus of the milestone project is to focus on bridging the gap of bullying and classroom instruction methods. There has to be a defined expectations and level of accountability that has to be defined when supporting and implementing a plan linked to bullying prevention. All individuals involved in the student's learning have to be aware of…

  16. Prevention: Exercise

    Medline Plus

    Full Text Available ... Strengthen Your Core! Stretching/Flexibility Aerobic Exercise Cervical Exercise Strength Training for the Elderly Other Back Pack Safety Pregnancy and Back Pain Preventing Osteoporosis Back Pain Basics Book RESOURCES ... The Backbone of Spine Treatment Spondylolisthesis BLOG FIND ...

  17. Prevent Pneumonia

    Centers for Disease Control (CDC) Podcasts

    2015-08-06

    CDC’s Matthew Westercamp explains what pneumonia is, its symptoms, and how to prevent it.  Created: 8/6/2015 by National Center for Immunization and Respiratory Diseases (NCIRD), Division of Bacterial Diseases (DBD), Respiratory Diseases Branch (RDB).   Date Released: 8/6/2015.

  18. HIV Prevention

    Science.gov (United States)

    ... Abroad Treatment Basic Statistics Get Tested Find an HIV testing site near you. Enter ZIP code or city Follow HIV/AIDS CDC HIV CDC HIV/AIDS See RSS | ... Collapse All Is abstinence the only 100% effective HIV prevention option? Yes. Abstinence means not having oral, ...

  19. Prevention: Exercise

    Medline Plus

    Full Text Available ... Information Feature Articles Patient Q&A Success Stories Definitions Anatomy of the Spine Definitions A-Z Spine Specialists Videos 9 for Spine Epidural Steroid Injections Exercise: The Backbone of Spine Treatment Spondylolisthesis BLOG FIND A SPECIALIST Prevention ...

  20. Allergy prevention.

    Science.gov (United States)

    Muche-Borowski, Cathleen; Kopp, Matthias; Reese, Imke; Sitter, Helmut; Werfel, Thomas; Schäfer, Torsten

    2010-09-01

    The further increase of allergies in industrialized countries demands evidence-based measures of primary prevention. The recommendations as published in the guideline of 2004 were updated and consented on the basis of a systematic literature search. Evidence from the period February 2003-May 2008 was searched in the electronic databases Cochrane and MEDLINE as well as in reference lists of recent reviews and by contacting experts. The retrieved citations were screened for relevance first by title and abstract and in a second step as full paper. Levels of evidence were assigned to each included study and the methodological quality of the studies was assessed as high or low. Finally the revised recommendations were formally consented (nominal group process) by representatives of relevant societies and organizations including a self-help group. Of originally 4556 hits, 217 studies (4 Cochrane Reviews, 14 meta-analyses, 19 randomized controlled trials, 135 cohort and 45 case-control studies) were included and critically appraised. Grossly unchanged remained the recommendations on avoiding environmental tobacco smoke, breast-feeding over 4 months (alternatively hypoallergenic formulas for children at risk), avoiding a mold-promoting indoor climate, vaccination according to current recommendations, and avoidance of furry pets (especially cats) in children at risk. The recommendation on reducing the house dust mite allergen exposure as a measure of primary prevention was omitted and the impact of a delayed introduction of supplementary food was reduced. New recommendations were adopted concerning fish consumption (during pregnancy / breast-feeding and as supplementary food in the first year), avoidance of overweight, and reducing the exposure to indoor and outdoor air pollutants. The revision of this guideline on a profound evidence basis led to (1) a confirmation of existing recommendations, (2) substantial revisions, and (3) new recommendations. Thereby it is possible

  1. Operational verification of a blow out preventer utilizing fiber Bragg grating based strain gauges

    Science.gov (United States)

    Turner, Alan L.; Loustau, Philippe; Thibodeau, Dan

    2015-05-01

    Ultra-deep water BOP (Blowout Preventer) operation poses numerous challenges in obtaining accurate knowledge of current system integrity and component condition- a salient example is the difficulty of verifying closure of the pipe and shearing rams during and after well control events. Ascertaining the integrity of these functions is currently based on a manual volume measurement performed with a stop watch. Advances in sensor technology now permit more accurate methods of BOP condition monitoring. Fiber optic sensing technology and particularly fiber optic strain gauges have evolved to a point where we can derive a good representation of what is happening inside a BOP by installing sensors on the outside shell. Function signatures can be baselined to establish thresholds that indicate successful function activation. Based on this knowledge base, signal variation over time can then be utilized to assess degradation of these functions and subsequent failure to function. Monitoring the BOP from the outside has the advantage of gathering data through a system that can be interfaced with risk based integrity management software and/or a smart monitoring system that analyzes BOP control redundancies without the requirement of interfacing with OEM control systems. The paper will present the results of ongoing work on a fully instrumented 13-½" 10,000 psi pipe ram. Instrumentation includes commonly used pressure transducers, accelerometers, flow meters, and optical strain gauges. Correlation will be presented between flow, pressure, acceleration signatures and the fiber optic strain gauge's response as it relates to functional verification and component level degradation trending.

  2. Kuwaiti oil wells blowout - aspects and effects

    International Nuclear Information System (INIS)

    Al-Jassim, F.

    1992-01-01

    When the Iraqi troops were forced to leave Kuwait, they left behind them the greatest oil catastrophe human beings have ever experienced. Fire plumes of tons of gases of principal pollutants, hydrocarbons, soot and associated metals were ejected up to a height of about 5 km. The retreating forces blew off about 1200 wells all over Kuwait fields. Of these 1200 wells, 614 are on fire. Four firefighting companies were hired to start work immediately after the liberation of Kuwaiti to control these wells. Three of these companies were from the U.S.A. and one from Canada. The number of these companies steadily increased along with logistical support. There are now 28 teams made up of private and multinational companies. This paper will concentrate on two main aspects. The first part will focus on the up-to-date engineering aspects of bringing the blown-out wells under control, focusing on oil well fires and the difficulties encountered, such as equipment availability, ordnance clearance and logistical support. The paper then describes the procedures used to control the wells, and the steps taken to reach this aim are presented. Finally the number of wells controlled, area-wise in different fields, with their original status, is also introduced. The second part will concentrate on the environmental aspects, covering the impact of the plumes on air quality, air pollution and health. The paper then discusses the effect on marine environment, vegetation and the soil. Finally, a forecast, conclusions and recommendations are presented. (author)

  3. Pulsar Wind Bubble Blowout from a Supernova

    Energy Technology Data Exchange (ETDEWEB)

    Blondin, John M. [Department of Physics, North Carolina State University, Raleigh, NC 27695-8202 (United States); Chevalier, Roger A., E-mail: blondin@ncsu.edu [Department of Astronomy, University of Virginia, P.O. Box 400325, Charlottesville, VA 22904-4325 (United States)

    2017-08-20

    For pulsars born in supernovae, the expansion of the shocked pulsar wind nebula is initially in the freely expanding ejecta of the supernova. While the nebula is in the inner flat part of the ejecta density profile, the swept-up, accelerating shell is subject to the Rayleigh–Taylor instability. We carried out two- and three-dimensional simulations showing that the instability gives rise to filamentary structure during this initial phase but does not greatly change the dynamics of the expanding shell. The flow is effectively self-similar. If the shell is powered into the outer steep part of the density profile, the shell is subject to a robust Rayleigh–Taylor instability in which the shell is fragmented and the shocked pulsar wind breaks out through the shell. The flow is not self-similar in this phase. For a wind nebula to reach this phase requires that the deposited pulsar energy be greater than the supernova energy, or that the initial pulsar period be in the ms range for a typical 10{sup 51} erg supernova. These conditions are satisfied by some magnetar models for Type I superluminous supernovae. We also consider the Crab Nebula, which may be associated with a low energy supernova for which this scenario applies.

  4. Survived ileocecal blowout from compressed air.

    Science.gov (United States)

    Weber, Marco; Kolbus, Frank; Dressler, Jan; Lessig, Rüdiger

    2011-03-01

    Industrial accidents with compressed air entering the gastro-intestinal tract often run fatally. The pressures usually over-exceed those used by medical applications such as colonoscopy and lead to vast injuries of the intestines with high mortality. The case described in this report is of a 26-year-old man who was harmed by compressed air that entered through the anus. He survived because of fast emergency operation. This case underlines necessity of explicit instruction considering hazards handling compressed air devices to maintain safety at work. Further, our observations support the hypothesis that the mucosa is the most elastic layer of the intestine wall.

  5. Treating and Preventing Burns

    Science.gov (United States)

    ... Healthy Living Healthy Living Healthy Living Nutrition Fitness Sports Oral Health Emotional Wellness Growing Healthy Sleep Safety & Prevention Safety & Prevention Safety and Prevention Immunizations At Home ...

  6. Relapse prevention.

    Science.gov (United States)

    Hall, S M; Wasserman, D A; Havassy, B E

    1991-01-01

    Although knowledge about relapse prevention is still at an early stage, the extant data highlight the importance of several constructs. 1. Motivation for abstinence remains central. The construct itself is often clouded because of its association with mystical notions such as willpower and self-control. We know that manipulation of environmental events can increase motivation. These interventions are effective, however, only as long as the contingencies are in effect. We need to develop and evaluate strategies for transferring contingency management to the natural environment, that is, to institutions and groups that can perpetuate them for the long term. Also, clarification of the kinds of abstinence goals needed to prevent relapse is important. 2. Coping skills have been studied by several investigators, but research on these, except for job-finding skills, is not encouraging. The skills usually taught may be too basic. Skills training oriented to complex targets, such as building nondrug-using networks, may be useful and should be further explored. 3. Social support is clearly important, yet we do not know how best to use it to promote abstinence. The little research available suggests that both familial and nonfamilial systems should be mobilized. We need to define abstinence-promoting supportive behaviors, identify and engage important support systems in treatment, and help patients expand their nondrug-using contacts. 4. Negative affect may be causally related to relapse. We need to continue efforts to identify dysphoric patients and develop interventions to ameliorate dysphoria concurrent with drug abuse treatment (cf. Zweben and Smith 1989). 5. Drug cue reactivity and extinction to drug cues have been demonstrated in the laboratory. What is needed in this promising line of research are (1) investigation of cues and cue-reactivity phenomena in the natural environment or in conditions closely mimicking that environment and (2) extinction methods that transfer

  7. Polio and Prevention

    Science.gov (United States)

    ... Photo Collections Videos Polio Today → Polio + Prevention Polio + Prevention Polio and prevention Polio is a crippling and ... a child for life. Learn more about polio + prevention The Virus The Vaccines The Communities Related resources ...

  8. Diabetes Prevention Program (DPP)

    Science.gov (United States)

    ... Recruiting Patients & Families Consortia, Networks & Centers Reports & Planning Diabetes Prevention Program (DPP) The NIDDK-sponsored Diabetes Prevention ... Diabetes Prevention Program for those who are eligible. Diabetes Prevention Program (DPP) DPP Goal The DPP looked ...

  9. Stomach (Gastric) Cancer Prevention

    Science.gov (United States)

    ... likely as white men to die from stomach cancer. Stomach Cancer Prevention Key Points Avoiding risk factors and increasing ... factors and increasing protective factors may help prevent stomach cancer. Avoiding cancer risk factors may help prevent certain ...

  10. "AN OUNCE OF PREVENTION..."

    Science.gov (United States)

    HASELKORN, FLORENCE

    PREVENTION AS FUNCTION, VALUE ISSUE, CONCEPTUAL SHORTCOMING, AND PRACTICE IS DISCUSSED AND RELATED TO EDUCATIONAL TASK. PREVENTION AS FUNCTION IS GENERATED BY OUR VALUE PREMISES. IN SEEKING TO PREVENT SOME FORMS OF SOCIAL DYSFUNCTION, WE MAY BE PERPETUATING OTHERS. THE CONCEPT OF PREVENTION IS AMBIGUOUS. CRUCIAL CONCEPTUAL ISSUES INCLUDE THE…

  11. [Prevention of dementia].

    Science.gov (United States)

    Urakami, Katsuya

    2016-03-01

    The dementia prevention consists of three steps, primary prevention of dementia is to prevent from normal and mild cognitive impairment to dementia, secondary prevention is early detection and early treatment of dementia, and tertiary prevention is three stages of progress prevention of dementia. Primary prevention of dementia had been considered impossible until recently, but potential scientific evidence has been shown recently. The fact that 4.62 million people are person with dementia and 400 million people are person with mild cognitive impairment are considered to be urgent problem and we must intend to perform dementia prevention from primary to tertiary prevention thoroughly. We perform dementia screening using touch panel type computer and we recommend person with mild cognitive impairment to join dementia prevention classroom. Therefore, we can prevent progression from mild cognitive impairment to dementia (primary prevention). Early diagnosis and introduction to the specialized medical institution are needed if you find early stage of dementia and treat early (secondary prevention). To prevent progression by the appropriate drug treatment and care for dementia is required (tertiary prevention).

  12. Jet lag prevention

    Science.gov (United States)

    ... medlineplus.gov/ency/patientinstructions/000719.htm Jet lag prevention To use the sharing features on this page, ... Headache Irritability Stomach upset Sore muscles Tips for Prevention Before your trip: Get plenty of rest, eat ...

  13. Research Areas: Prevention

    Science.gov (United States)

    NCI’s prevention research has a broad focus, from identifying environmental and lifestyle factors that influence cancer risk to studying the biology of how cancer develops and studying ways to disseminate prevention interventions.

  14. Marine Pollution Prevention Act

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The Marine Pollution Prevention Act of 2008 implements the International Convention for the Prevention of Pollution from Ships, including related Protocols (MARPOL)...

  15. Preventing Type 2 Diabetes

    Science.gov (United States)

    ... Sexual & Urologic Problems Clinical Trials Preventing Type 2 Diabetes Perhaps you have learned that you have a ... I lower my chances of developing type 2 diabetes? Research such as the Diabetes Prevention Program shows ...

  16. Preventing Diabetes Problems

    Science.gov (United States)

    ... Problems Diabetes & Sexual & Urologic Problems Clinical Trials Preventing Diabetes Problems View or Print All Sections Heart Disease & ... prevent or delay sexual and urologic problems. Depression & Diabetes Depression is common among people with a chronic, ...

  17. Statins and Cancer Prevention

    Science.gov (United States)

    ... cell membrane integrity, cell signaling, protein synthesis, and cell cycle progression, all of which are potential areas of intervention to arrest the cancer process. What are the ... at the NCI Division of Cancer Prevention Web site at http://prevention. ...

  18. Preventing food poisoning

    Science.gov (United States)

    ... page: //medlineplus.gov/ency/article/007441.htm Preventing food poisoning To use the sharing features on this page, please enable JavaScript. To prevent food poisoning , take the following steps when preparing food: Carefully ...

  19. Breast Cancer Prevention

    Science.gov (United States)

    ... of Breast & Gynecologic Cancers Breast Cancer Screening Research Breast Cancer Prevention (PDQ®)–Patient Version What is prevention? Go ... from starting. Risk-reducing surgery . General Information About Breast Cancer Key Points Breast cancer is a disease in ...

  20. Preventing Pressure Sores

    Medline Plus

    Full Text Available ... Peer Counseling Blog About Media Donate Spinal Cord Injury Medical Expert Videos Topics menu Topics Preventing Pressure Sores Adult Injuries Spinal Cord Injury 101 David Chen, MD Preventing ...

  1. Preventing Pressure Sores

    Medline Plus

    Full Text Available ... Injury Medical Expert Videos Topics menu Topics Preventing Pressure Sores Adult Injuries Spinal Cord Injury 101 David Chen, MD Preventing Pressure Sores Mary Zeigler, MS Transition from Hospital to ...

  2. Traditional preventive treatment options

    DEFF Research Database (Denmark)

    Longbottom, C; Ekstrand, K; Zero, D

    2009-01-01

    Preventive treatment options can be divided into primary, secondary and tertiary prevention techniques, which can involve patient- or professionally applied methods. These include: oral hygiene (instruction), pit and fissure sealants ('temporary' or 'permanent'), fluoride applications (patient...... options....

  3. Preventing Pressure Sores

    Medline Plus

    Full Text Available ... L Sarah Harrison, OT Anne Bryden, OT The Role of the Social Worker after Spinal Cord Injury ... do to prevent pressure sores? play_arrow What role does diet and hydration play in preventing pressure ...

  4. Preventing Pressure Sores

    Medline Plus

    Full Text Available ... to prevent pressure sores? play_arrow What is “skin tolerance” and how can it be ... play_arrow What role does diet and hydration play in preventing pressure sores among ...

  5. National Suicide Prevention Lifeline

    Science.gov (United States)

    ... Our Crisis Centers Stories of Hope and Recovery Mental Health & Suicide Prevention Glossary Get Involved Participate Our Crisis Centers Social Media Hub Promote National Suicide Prevention Month Providers & Professionals ...

  6. Prevention of gravitational collapse

    International Nuclear Information System (INIS)

    Moffat, J.W.; Taylor, J.G.

    1981-01-01

    We apply a new theory of gravitation to the question of gravitational collapse to show that collapse is prevented in this theory under very reasonable conditions. This result also extends to prevent ultimate collapse of the Universe. (orig.)

  7. Accident prevention in radiotherapy.

    Science.gov (United States)

    Holmberg, O

    2007-04-01

    In order to prevent accidents in radiotherapy, it is important to learn from accidents that have occurred previously. Lessons learned from a number of accidents are summarised and underlying patterns are looked for in this paper. Accidents can be prevented by applying several safety layers of preventive actions. Categories of these preventive actions are discussed together with specific actions belonging to each category of safety layer.

  8. Accident prevention in radiotherapy

    OpenAIRE

    Holmberg, O

    2007-01-01

    In order to prevent accidents in radiotherapy, it is important to learn from accidents that have occurred previously. Lessons learned from a number of accidents are summarised and underlying patterns are looked for in this paper. Accidents can be prevented by applying several safety layers of preventive actions. Categories of these preventive actions are discussed together with specific actions belonging to each category of safety layer.

  9. Prevention of periodontal diseases.

    Science.gov (United States)

    Dentino, Andrew R; Kassab, Moawia M; Renner, Erica J

    2005-07-01

    The ultimate goal of periodontal disease prevention is to maintain the dentition over a lifetime in a state of health, comfort, and function in an aesthetically pleasing presentation. This article focuses on primary and secondary periodontal disease prevention as they relate to gingivitis and periodontitis. Risk assessment, mechanical plaque control, chemical plaque control, current clinical recommendations for optimal prevention, and future preventive strategies are discussed.

  10. Fall Prevention: Simple Tips to Prevent Falls

    Science.gov (United States)

    ... bars for the shower or tub A sturdy plastic seat for the shower or tub — plus a ... healthy-lifestyle/healthy-aging/in-depth/fall-prevention/art-20047358 . Mayo Clinic Footer Legal Conditions and Terms ...

  11. Chickenpox Prevention and Treatment

    Science.gov (United States)

    ... Multimedia Related Links Medline Plus Healthfinder.gov Shingles Prevention & Treatment Language: English Español (Spanish) Recommend on Facebook ... Prescribed by Your Doctor Español: Prevención y tratamiento Prevention The best way to prevent chickenpox is to ...

  12. Prevention IS Care

    Centers for Disease Control (CDC) Podcasts

    2009-03-26

    This podcast provides an overview of the Prevention IS Care campaign, which provides HIV prevention tools for medical care providers to use on a daily basis with patients who are living with HIV.  Created: 3/26/2009 by National Center for HIV/AIDS, Viral Hepatitis, STD, and TB Prevention (NCHHSTP).   Date Released: 3/26/2009.

  13. Strategies to prevent loneliness

    NARCIS (Netherlands)

    de Jong Gierveld, J.; Fokkema, T.; Sha'ked, A.; Rokach, A.

    2015-01-01

    Prevention is better than cure’. This also applies to loneliness experiences: preventing people from loneliness is better than helping them to reduce their feelings of loneliness through interventions. In this chapter, we argue the necessity of loneliness prevention strategies for handling future

  14. Prevention of Food Poisoning.

    Science.gov (United States)

    Army Quartermaster School, Ft. Lee, VA.

    The programed text provides a single lesson, four-hour, correspondence subcourse on the prevention of food poisoning. It covers the following areas: a definition of food poisoning; chemical food poisoning; biological food poisoning; causes and prevention of trichinosis; six factors controlling bacteria growth; bacterial infection; prevention of…

  15. Cancer risks and prevention

    International Nuclear Information System (INIS)

    Vessey, M.P.; Gray, M.

    1985-01-01

    A series of essays in honour of Sir Richard Doll is presented. Chapters cover the preventability of cancer, geography, smoking, diet, occupation, radiation, infections and immune impairment, exogenous and endogenous hormones, other drugs, prevention through legislation and by education and cancer risks and prevention in the Third World. The chapter on radiation has been indexed separately. (UK)

  16. Sunburn: Treatment and Prevention

    Science.gov (United States)

    ... 12 mos.) Toddler 1-3yrs. Preschool 3-5yrs Grade School 5-12yrs. Teen 12-18yrs. Young Adult 18-21yrs. Healthy Living Healthy Living Healthy Living Nutrition Fitness Sports Oral Health Emotional Wellness Growing Healthy Sleep Safety & Prevention Safety & Prevention Safety and Prevention Immunizations ...

  17. [Prevention of eating disorders].

    Science.gov (United States)

    Papežová, Hana

    2017-01-01

    The quality of the prevention of eating disorders represents in several last decades frequently discussed issue in the context of rapidly changing socio-economic conditions, a significant increase of influence of the media, new technologies and knowledge of risk factors. Primary prevention aims to reduce the risk of developing eating disorders, but secondary and tertiary prevention play the important role as well. Effective and coordinated prevention is still missing. Our experience of international cooperation of the last 20 years led to the development and evaluation of prevention programs. We are describing their fast development and ongoing programs following the new trends recommended by WHO.

  18. Prevention Of Stroke

    Directory of Open Access Journals (Sweden)

    Nagaraja D

    2005-01-01

    Full Text Available Stroke is an important cause for neurological morbidity and mortality. Prevention of ischemic stroke involves identification and prevention of risk factors and optimal use of pharmacotherapy. Risk factors have been classified as modifiable and non-modifiable; control of modifiable factors should prevent stroke occurrence. Stroke prevention has been described at three levels: primary, secondary and tertiary. Prolonged hypertension increases an individual′s risk for developing fatal or nonfatal stroke by three times and its control has been shown to prevent stroke. Diabetes mellitus is an important cause for microangiopathy and predisposes to stroke. Statin trials have shown significant reduction in stroke in those who were treated with statins. Stroke risk can be reduced by avoiding tobacco use, control of obesity and avoiding sedentary life style. Anti platelet medications are effective for secondary prevention of stroke. Educating society regarding modifiable risk factors and optimal use of pharmacotherapy form the cornerstone for the prevention of stroke.

  19. Prevention of suicide

    Directory of Open Access Journals (Sweden)

    Rajiv Gupta

    2017-01-01

    Full Text Available Suicide is a major public health problem in India, probably even bigger than in the West. Suicidal behavior is the best conceptualized as a multifaceted complex problem involving social factors and mental illnesses. Broadly, there are two approaches to suicide prevention; population preventive strategies and high-risk preventive strategies. Population preventive strategies include reducing availability of means for suicide, education of primary care physicians, influencing media portrayal of suicidal behavior, education of the public, telephone helplines, and addressing economic issues associated with suicidal behavior. High-risk preventive strategy includes identifying individuals with high risk of committing suicide, intensively treating mental illness if present, and providing psychosocial support. Thus, prevention requires a multipronged effort with collaboration from various sectors including mental health professionals, social justice department, and macroeconomic policy makers.

  20. Traditional preventive treatment options

    DEFF Research Database (Denmark)

    Longbottom, C; Ekstrand, K; Zero, D

    2009-01-01

    conventional operative care, and since controlling the caries process prior to first restoration is the key to breaking the repair cycle and improving care for patients, future research should address the shortcomings in the current level of supporting evidence for the various traditional preventive treatment......Preventive treatment options can be divided into primary, secondary and tertiary prevention techniques, which can involve patient- or professionally applied methods. These include: oral hygiene (instruction), pit and fissure sealants ('temporary' or 'permanent'), fluoride applications (patient...

  1. Prevention of Prosthetic Dentistry

    Directory of Open Access Journals (Sweden)

    Eremin O.V.

    2011-03-01

    Full Text Available Prevention in prosthetic dentistry is not just a regular oral hygiene and the prevention of caries in the early stages of its development. The initial goal of orthopedic and dental should be the ability to convey to the patient's sense of pros-thetics that proteziruya one saved more. An example is included prosthetic dental arch defects with bridges or single artificial crowns on implants that will prevent movement of teeth and the continuity of the dentition

  2. Prevent Infections During Chemotherapy

    Centers for Disease Control (CDC) Podcasts

    2011-10-24

    This podcast discusses the importance of preventing infections in cancer patients who are undergoing chemotherapy. Dr. Lisa Richardson, CDC oncologist, talks about a new Web site for cancer patients and their caregivers.  Created: 10/24/2011 by National Center for Chronic Disease Prevention and Health Promotion (NCCDPHP), Division of Cancer Prevention and Control (DCPC).   Date Released: 10/24/2011.

  3. Preventing food allergy

    DEFF Research Database (Denmark)

    de Silva, Debra; Panesar, Sukhmeet S; Thusu, Sundeep

    2013-01-01

    The European Academy of Allergy and Clinical Immunology is developing guidelines about how to prevent and manage food allergy. As part of the guidelines development process, a systematic review is planned to examine published research about the prevention of food allergy. This systematic review...... recommendations. The aim of this systematic review will be to assess the effectiveness of approaches for the primary prevention of food allergy....

  4. Speech disorder prevention

    Directory of Open Access Journals (Sweden)

    Miladis Fornaris-Méndez

    2017-04-01

    Full Text Available Language therapy has trafficked from a medical focus until a preventive focus. However, difficulties are evidenced in the development of this last task, because he is devoted bigger space to the correction of the disorders of the language. Because the speech disorders is the dysfunction with more frequently appearance, acquires special importance the preventive work that is developed to avoid its appearance. Speech education since early age of the childhood makes work easier for prevent the appearance of speech disorders in the children. The present work has as objective to offer different activities for the prevention of the speech disorders.

  5. Work hazard prevention plans

    International Nuclear Information System (INIS)

    Albertos Campos, F.

    2009-01-01

    The prevention of industrial risks is a constantly evolving discipline that has changed considerable in the last 25 years. The Cofrentes Nuclear Power Plants has always been operated with a clear policy favoring prevention by supporting the principle of its integration, i. e., that the hierarchical functional organization of the company make sure that industrial risk prevention is effective and that health and safety standards are met. The historical evolution of occupational safety in the Cofrentes Nuclear Power Plant shows a a clear trend towards improvement and is the results of many years of hard work and effort by the plants own and contractor personnel in the field of industrial risk prevention. (Author)

  6. Fungus Infections: Preventing Recurrence

    Science.gov (United States)

    ... Favorite Name: Category: Share: Yes No, Keep Private Fungus Infections: Preventing Recurrence Share | Doctors have excellent treatments for skin fungus infections that occur on the feet, nails, groin, ...

  7. Prevention at Community Colleges. Prevention Update

    Science.gov (United States)

    Higher Education Center for Alcohol, Drug Abuse, and Violence Prevention, 2012

    2012-01-01

    According to "Community College Student Alcohol Use: Developing Context-Specific Evidence and Prevention Approaches," community colleges have traditionally had a threefold mission that includes preparing students for transfer to four-year colleges, developmental education, and workforce preparation. The researchers point out that the demographic…

  8. Preventing Eye Injuries

    Science.gov (United States)

    ... Stories Español Eye Health / Eye Health A-Z Eye Injuries Sections Preventing Eye Injuries Recognizing and Treating ... Infographic Five Steps to Safer Champagne Celebrations Preventing Eye Injuries Leer en Español: Lesiones de los ojos ...

  9. Injury prevention in football

    African Journals Online (AJOL)

    and cool downs before and after training and matches, respectively. As part of injury prevention, adequate injury management and rehabilitation are essential; especially in the prevention of re-injury. Unfortunately, youth football is often disadvantaged with inadequate or unavailable sports medicine personnel and treatment ...

  10. HIV Risk and Prevention

    Science.gov (United States)

    ... Prevention VIH En Español Get Tested Find an HIV testing site near you. Enter ZIP code or city Follow HIV/AIDS CDC HIV CDC HIV/AIDS See RSS | ... Email Updates on HIV Syndicated Content Website Feedback HIV Risk and Prevention Recommend on Facebook Tweet Share ...

  11. Preventative Medicine today

    Directory of Open Access Journals (Sweden)

    José Antonio Maluf de Carvalho

    2005-03-01

    Full Text Available The great majority of chronic diseases can be prevented byreducing risks, understood as factors that increase the probabilityof a specific disease or condition, such as hypertension,hypercholesterolemia, inadequate diet, smoking habit, obesity andsedentarism. These aspects are evaluated in this article as wellas prevention and screening methods.

  12. [Prevention of psychosocial risks].

    Science.gov (United States)

    Dalle, Édouard; Trichard-Salembier, Alexandra; Sobaszek, Annie

    2018-02-01

    The theme of psychosocial risks remains in the workplace. It is therefore essential that all members of a company are made aware of the terminology and specific prevention actions in this field. Distinguishing between the manifestations of these risks and their causes and consequences helps to improve prevention. Copyright © 2017 Elsevier Masson SAS. All rights reserved.

  13. Prevention de la Poliomyelite

    Directory of Open Access Journals (Sweden)

    M. Baltazard

    1962-01-01

    Full Text Available In Iran, the prevention of poliomyelitis is practically limited to vaccinatton This paper, however, gives a detailed account of the preventive measures attempting to check the spread of the infection and of those aiming at the reduction of the frequency of the paralytic manifestation

  14. Cancer Prevention Overview (PDQ)

    Science.gov (United States)

    ... have been shown to reduce the risk of breast cancer in women at high risk. SERMS may cause side effects , such as hot flashes , so they are not often used for prevention of cancer. See the PDQ summary on Breast Cancer Prevention for more information. Finasteride has been ...

  15. Prevent Cervical Cancer!

    Centers for Disease Control (CDC) Podcasts

    2015-01-08

    Cervical cancer can be prevented. Listen as two friends—one a doctor—talk about screening tests and early detection. Learn what test you might need.  Created: 1/8/2015 by National Center for Chronic Disease Prevention and Health Promotion (NCCDPHP).   Date Released: 1/8/2015.

  16. Prevention of Preeclampsia

    Directory of Open Access Journals (Sweden)

    Sammya Bezerra Maia e Holanda Moura

    2012-01-01

    Full Text Available Preeclampsia (PE affects around 2–5% of pregnant women. It is a major cause of maternal and perinatal morbidity and mortality. In an attempt to prevent preeclampsia, many strategies based on antenatal care, change in lifestyle, nutritional supplementation, and drugs have been studied. The aim of this paper is to review recent evidence about primary and secondary prevention of preeclampsia.

  17. Prevention of Preeclampsia

    OpenAIRE

    Bezerra Maia e Holanda Moura, Sammya; Marques Lopes, Laudelino; Murthi, Padma; da Silva Costa, Fabricio

    2012-01-01

    Preeclampsia (PE) affects around 2–5% of pregnant women. It is a major cause of maternal and perinatal morbidity and mortality. In an attempt to prevent preeclampsia, many strategies based on antenatal care, change in lifestyle, nutritional supplementation, and drugs have been studied. The aim of this paper is to review recent evidence about primary and secondary prevention of preeclampsia.

  18. Can I Prevent Acne?

    Science.gov (United States)

    ... for Educators Search English Español Can I Prevent Acne? KidsHealth / For Teens / Can I Prevent Acne? Print en español ¿Puedo prevenir el acné? What Causes Acne? Contrary to what you may have heard, acne ...

  19. Prevention of preterm birth.

    LENUS (Irish Health Repository)

    Flood, Karen

    2012-02-01

    Preterm birth (delivery before 37 completed weeks of gestation) is common and rates are increasing. In the past, medical efforts focused on ameliorating the consequences of prematurity rather than preventing its occurrence. This approach resulted in improved neonatal outcomes, but it remains costly in terms of both the suffering of infants and their families and the economic burden on society. Increased understanding of the pathophysiology of preterm labor has altered the approach to this problem, with increased focus on preventive strategies. Primary prevention is a limited strategy which involves public education, smoking cessation, improved nutritional status and avoidance of late preterm births. Secondary prevention focuses on recurrent preterm birth which is the most recognisable risk factor. Widely accepted strategies include cervical cerclage, progesterone and dedicated clinics. However, more research is needed to explore the role of antibiotics and anti-inflammatory treatments in the prevention of this complex problem.

  20. Preventing eating disorders.

    Science.gov (United States)

    Shaw, Heather; Stice, Eric; Becker, Carolyn Black

    2009-01-01

    This article reviews eating disorder (ED) prevention programs, highlighting features that define successful programs and particularly promising interventions, and how they might be further refined. The field of ED prevention has advanced considerably both theoretically and methodologically compared with the earlier ED prevention programs, which were largely psychoeducational and met with limited success. Recent meta-analytic findings show that more than half (51%) of ED prevention interventions reduced ED risk factors and more than a quarter (29%) reduced current or future eating pathology (EP). A couple of brief programs have been shown to reduce the risk for future onset of EP and obesity. Selected interactive, multisession programs offered to participants older than 15 years, delivered by professional interventionists and including body acceptance or dissonance-induction content, produced larger effects. Understanding and applying these results can help inform the design of more effective prevention programs in the future.

  1. Prevention in practice

    DEFF Research Database (Denmark)

    Birch, Stephen; Bridgman, Colette; Brocklehurst, Paul

    2015-01-01

    for the conference, collected materials from scribes during the conference and additional resources collated in advance of the meeting, authors agreed on the summary document. RESULTS: The Prevention in Practice conference aimed to collate information about which diseases could be prevented in practice, how diseases...... could be identified early enough to facilitate prevention, what evidence based therapies and treatments were available and how, given the collective evidence, could these be introduced in general dental practice within different reimbursement models. CONCLUSIONS: While examples of best practice were...

  2. CSI cardiac prevent 2015

    Directory of Open Access Journals (Sweden)

    S Ramakrishnan

    2015-01-01

    Full Text Available The CSI Cardiac Prevent 2015 was held at Hotel Taj Palace, New Delhi, on September 25-27, 2015. The major challenge was to create interest among cardiologists and physicians on preventive cardiology, a neglected area. The theme of the conference was "Innovations in Heart Disease Prevention.′′ This conference included "CSI at WHF Roadmap Workshop, Inauguration Ceremony, scientific program, plenary sessions, Nursing/Dietician track, Industry Exhibition, Social Events," Great India blood pressure Survey, and CSI Smart Heart App. A total of 848 delegates/faculties attended this conference against a total of 1140 people registered for the meeting.

  3. Obesity Prevention and Screening.

    Science.gov (United States)

    Mackey, Eleanor R; Olson, Alexandra; DiFazio, Marc; Cassidy, Omni

    2016-03-01

    Obesity is widespread, associated with several physical and psychosocial comorbidities, and is difficult to treat. Prevention of obesity across the lifespan is critical to improving the health of individuals and society. Screening and prevention efforts in primary care are an important step in addressing the obesity epidemic. Each period of human development is associated with unique risks, challenges, and opportunities for prevention and intervention. Screening tools for overweight/obesity, although imperfect, are quick and easy to administer. Screening should be conducted at every primary care visit and tracked longitudinally. Screening tools and cutoffs for overweight and obesity vary by age group. Copyright © 2016 Elsevier Inc. All rights reserved.

  4. Prevention of Eye Injuries

    OpenAIRE

    Pashby, Tom

    1981-01-01

    In Canada 30,000 people are registered as blind; in one third of these, blindness might have been avoided. Prevention is the key to reducing the number of eye injuries and blind eyes. The role of the family physician in early identification of treatable conditions and in the education of patients is discussed, but responsibility for prevention belongs to all physicians. The success of prevention is seen in the great reduction in eye injuries in industry and sports since eye protectors have be...

  5. Measuring pollution prevention

    International Nuclear Information System (INIS)

    Stephan, D.G.; Bridges, J.S.

    1992-01-01

    To assess progress in pollution prevention, estimates or measurements of the amounts of pollution actually prevented have to be made. Such estimates or measurements tell us how far we have come and, possibly, how much farther there is to go in utilizing pollution prevention as a tool for improving environmental quality. They can, theoretically, be used to assess progress on a scale ranging from the individual facility or even the individual process or activity generation wastes to scale as large as a geographical area such as a county, a state or even the United States as a whole. 3 refs

  6. Novel preventive treatment options

    DEFF Research Database (Denmark)

    Longbottom, C; Ekstrand, K; Zero, D

    2009-01-01

    A number of novel preventive treatment options which, as with traditional methods, can be differentiated into 3 categories of prevention (primary, secondary and tertiary), have been and are being currently investigated. Those reviewed are either commercially available or appear relatively close...... of these techniques show considerable promise and dentists should be aware of these developments and follow their progress, the evidence for each of these novel preventive treatment options is currently insufficient to make widespread recommendations. Changes in dental practice should be explored to see how oral...

  7. Can Vaginitis Be Prevented?

    Science.gov (United States)

    ... examples of safe sex. 1 Centers for Disease Control and Prevention. (2010). Self-study STD module—vaginitis . ... Halvorson New Chief of Gynecologic Health and Disease Branch Division of Epidemiology, Statistics, ...

  8. Dental Sealants Prevent Cavities

    Science.gov (United States)

    ... FAQs CDC SEALS Software CDC State Strategies: Preventing Tooth Decay CDC Oral Health Data Other Sites MedlinePlus – Child Dental Health MedlinePlus – Tooth Decay American Dental Association – Evidence-based clinical practice guideline ...

  9. Prevent Back Pain

    Science.gov (United States)

    ... and prevent back pain: Do back-strengthening and stretching exercises at least 2 or 3 times a week. ... risk of back pain. Do back-strengthening and stretching exercises [PDF - 244 KB] at least 2 or 3 ...

  10. Preventing Knee Injuries

    Science.gov (United States)

    ... Blog Skip breadcrumb navigation Preventing Knee Injuries Knee injuries in children and adolescent athletes may be the result of ... occur in childhood sports, but with any knee injury in a growing child there is a possibility of a fracture related ...

  11. Home Improvements Prevent Falls

    Science.gov (United States)

    ... turn JavaScript on. Feature: Falls and Older Adults Home Improvements Prevent Falls Past Issues / Winter 2014 Table ... and ensure your safety. "Safe-ty-fy" Your Home Some Questions for Your Provider Will my medicines ...

  12. Preventing Pressure Sores

    Medline Plus

    Full Text Available ... increased? play_arrow What do family members and caregivers need to know about pressure sores? play_arrow What do family members and caregivers need to do to prevent pressure sores? play_ ...

  13. Prostate Cancer Prevention

    Science.gov (United States)

    ... prostate cancer A man whose father, brother, or son has had prostate cancer has a higher-than- ... known if these drugs lower the risk of death from prostate cancer. The Prostate Cancer Prevention Trial ( ...

  14. Prevention of cisplatin nephrotoxicity

    Directory of Open Access Journals (Sweden)

    Hayati Fatemeh

    2016-01-01

    Full Text Available Cisplatin has a well-established role in the treatment of broad spectrum of malignancies; however its use is limited because of cisplatin-induced nephrotoxicity (CIN which can be progressive in more than 50% of cases. The most important risk factors for CIN include higher doses of cisplatin, previous cisplatin chemotherapy, underlying kidney damage and concurrent treatment with other potential nephrotoxin agents, such as aminoglycosides, nonsteroidal anti-inflammatory agents, or iodinated contrast media. Different strategies have been offered to diminish or prevent nephrotoxicity of cisplatin. The standard approach for prevention of CIN is the administration of lower doses of cisplatin in combination with full intravenous hydration prior and after cisplatin administration. Cisplatin-induced oxidative stress in the kidney may be prevented by natural antioxidant compounds. The results of this review show that many strategies for prevention of CIN exist, however, attention to the administration of these agent for CIN is necessary.

  15. Preventing Pressure Sores

    Medline Plus

    Full Text Available ... About Media Donate Spinal Cord Injury Medical Expert Videos Topics menu Topics Preventing Pressure Sores Adult Injuries ... LLC Understanding Spinal Cord Injury About Us Expert Videos Contact Us Personal Experience Videos Blog Videos By ...

  16. Preventing Financial Crime

    DEFF Research Database (Denmark)

    Boll, Karen

    This paper investigates the Swedish tax authority’s (Skatteverkets) compliance initiative called Preventing Financial Crime. In Sweden tax evasion related to organised moon-lighting is defined as a major risk to the revenue collection and to the legitimacy of Skatteverket. The traditional approach...... to abating such tax evasion has been reformed and a new mix-method approach adopted. This approach combines a proactive strategy—Preventing Financial Crime—with a reactive inspection strategy. During one a month of intensive fieldwork in Sweden, I studied the daily work in Preventing Financial Crime. Based...... on this, the paper shows that the Swedish tax officials seek to motivate large construction contractors and municipalities to take preventive measures in relation to their sub-contractors to avoid and abate tax evasion. The paper shows the challenges in engaging and involving these external stakeholders...

  17. Oral Cancer Prevention

    Science.gov (United States)

    ... Cancer Diagnosis Prevention Screening & Early Detection Treatment Cancer & Public Health Cancer Health Disparities Childhood Cancer Clinical Trials Global Health Key Initiatives Cancer Moonshot Genomic Data Commons National Clinical Trials ...

  18. Esophageal Cancer Prevention

    Science.gov (United States)

    ... Cancer Diagnosis Prevention Screening & Early Detection Treatment Cancer & Public Health Cancer Health Disparities Childhood Cancer Clinical Trials Global Health Key Initiatives Cancer Moonshot Genomic Data Commons National Clinical Trials ...

  19. Child Maltreatment Prevention

    Science.gov (United States)

    ... Study Prevent Shaken Baby Syndrome Suggested Practices for Journalists Reporting on Child Abuse and Neglect [PDF 2. ... input class="button submit" name="commit" type="submit" value="Submit" /> Related Links Saving Lives & Protecting People ...

  20. Preventing Pressure Sores

    Medline Plus

    Full Text Available ... Counseling Blog About Media Donate Spinal Cord Injury Medical Expert Videos Topics menu Topics Preventing Pressure Sores ... sores? What is a Spinal Cord Injury? SCI Medical Experts People Living With SCI Personal Experiences By ...

  1. Prevent Child Abuse America

    Science.gov (United States)

    ... call the police . Crisis and support contacts For Child Abuse Reporting Numbers in your State please visit: Child ... suspected child abuse and neglect. Parent Resources Prevent Child Abuse America (800) CHILDREN A resource for tips, referrals, ...

  2. Preventing Pressure Sores

    Medline Plus

    Full Text Available ... Adult Injuries Spinal Cord Injury 101 David Chen, MD Preventing Pressure Sores Mary Zeigler, MS Transition from ... Rosenberg, PsyD Understanding SCI Rehabilitation Donald Peck Leslie, MD Adjusting to Social Life in a Wheelchair Lisa ...

  3. Preventing Pressure Sores

    Medline Plus

    Full Text Available ... hours? play_arrow What's the best way to do daily skin inspections? play_arrow What are the ... for someone with a spinal cord injury to do to prevent pressure sores? play_arrow Why is ...

  4. Wildfire Prevention Strategies.

    Science.gov (United States)

    National Wildlife Coordinating Group, Boise, ID.

    This document provides information and guidance on wildfire prevention strategies. Chapters include: (1) "Introduction"; (2) "How to Use this Guide"; (3) "Fire Cause Classification"; (4) "Relative Effectiveness"; (5) "Degree of Difficulty"; (6) "Intervention Techniques"; (7)…

  5. Preventing Deep Vein Thrombosis

    Science.gov (United States)

    ... you may wear special elastic stockings or inflatable boots. These devices squeeze the muscles to help keep ... Special stockings that compress the legs below the knee may help prevent blood clots from forming. However, ...

  6. Preventing High Blood Pressure

    Science.gov (United States)

    ... Heart Disease Cholesterol Salt Million Hearts® WISEWOMAN Preventing High Blood Pressure: Healthy Living Habits Recommend on Facebook Tweet Share ... meal and snack options can help you avoid high blood pressure and its complications. Be sure to eat plenty ...

  7. Disaster prevention surveillance system

    International Nuclear Information System (INIS)

    Nara, Satoru; Kamiya, Eisei

    2001-01-01

    Fuji Electric Co., Ltd. has supplied many management systems to nuclear reactor institution. 'The nuclear countermeasures-against-calamities special-measures' was enforced. A nuclear entrepreneur has devised the measure about expansion prevention and restoration of a calamity while it endeavors after prevention of generating of a nuclear calamity. Our company have supplied the 'disaster prevention surveillance system' to the Japan Atomic Energy Research Institute Tokai Research Establishment aiming at strengthening of the monitoring function at the time (after the accident) of the accident used as one of the above-mentioned measures. A 'disaster prevention surveillance system' can share the information on the accident spot in an on-site command place, an activity headquarters, and support organizations, when the serious accident happens. This system is composed of various sensors (temperature, pressure and radiation), cameras, computers and network. (author)

  8. Preventing Pressure Sores

    Medline Plus

    Full Text Available ... Living with SCI Personal Experiences by Topic Resources Peer Counseling Blog About Media Donate Spinal Cord Injury Medical Expert Videos Topics menu Topics Preventing Pressure Sores Adult Injuries Spinal Cord Injury 101 David ...

  9. Prevention of malignant neoplasms

    OpenAIRE

    D. G. Zaridze; D. M. Maksimovich

    2017-01-01

    Research in causation of cancer is an important part of cancer research in general and is an essential prerequisite for cancer prevention. The effective primary prevention is not visible without evidence based knowledge in the causation of cancer in humans.There is sufficient evidence that certain life style and environment factors cause cancer in humans. These factors include: smoking and other types of tobacco consumption, overweight and obesity, lack of physical activity, diet rich in proc...

  10. HPV Prevention series

    OpenAIRE

    de Sanjosé Silvia

    2012-01-01

    Abstract Human Papilloma Virus (HPV) is a major leading cause of Human Cancer. Through the HPV Prevention series we would like to highlight the quality and the breadth of the research being carried out on the Control and Prevention of HPV and HPV related disease. This series aims to bring together a diverse range of HPV related specialties featuring research that has as ultimate goal insights into HPV related disease reduction. Articles within a wide range of topics such as natural history st...

  11. Prevention of hepatocellular carcinoma.

    Science.gov (United States)

    Kew, Michael C

    2010-01-01

    Because of its frequency and grave prognosis, preventing hepatocellular carcinoma is an urgent priority. Prevention should be possible because environmental carcinogens-chronic hepatitis B and C virus infections, dietary exposure to aflatoxins, and iron overload-cause the great majority of these tumors. Chronic hepatitis B virus infection accounts for 55% of global hepatocellular carcinomas and 80% of those in the high-incidence Asia Pacific and sub-Saharan African regions. In these regions the infection that becomes chronic is predominantly acquired very early in life. A safe and effective vaccine against this virus is available and its universal inclusion in the immunization of infants has already resulted in a marked reduction of chronic infection and a 70% decrease in the occurrence of hepatocellular carcinoma in those immunized. Chronic hepatitis C virus infection is the major cause of hepatocellular carcinoma in industrialized countries. The infection is mainly acquired in adulthood and, until a vaccine becomes available, prevention will consist mainly of identifying, counselling, and treating chronically infected individuals, preventing spread of the virus by the use of safe injection practices (particularly in intravenous drug abusers), and screening all donated blood for the presence of the virus. 4.5 billion of the world.s population are exposed to dietary aflatoxins. Prevention involves treating susceptible crops to prevent fungal contamination, and handling the foodstuffs in such a way as to prevent contamination during storage. Iron overload in hereditary hemochromatosis can be prevented by repeated venesection and in African dietary iron overload by fermenting the home-brewed beer in iron-free containers.

  12. Preventive Migraine Treatment

    Science.gov (United States)

    Silberstein, Stephen D.

    2015-01-01

    Purpose of Review: This article reviews the evidence base for the preventive treatment of migraine. Recent Findings: Evidence-based guidelines for the preventive treatment of migraine have recently been published by the American Academy of Neurology (AAN) and the Canadian Headache Society (CHS), providing valuable guidance for clinicians. Strong evidence exists to support the use of metoprolol, timolol, propranolol, divalproex sodium, sodium valproate, and topiramate for migraine prevention, according to the AAN. Based on best available evidence, adverse event profile, and expert consensus, topiramate, propranolol, nadolol, metoprolol, amitriptyline, gabapentin, candesartan, Petasites (butterbur), riboflavin, coenzyme Q10, and magnesium citrate received a strong recommendation for use from the CHS. Summary: Migraine preventive drug treatments are underutilized in clinical practice. Principles of preventive treatment are important to improve compliance, minimize side effects, and improve patient outcomes. Choice of preventive treatment of migraine should be based on the presence of comorbid and coexistent illness, patient preference, reproductive potential and planning, and best available evidence. PMID:26252585

  13. Stroke prevention: an update.

    Science.gov (United States)

    Bousser, Marie-Germaine

    2012-03-01

    Stroke is a personal, familial, and social disaster. It is the third cause of death worldwide, the first cause of acquired disability, the second cause of dementia, and its cost is astronomic. The burden of stroke is likely to increase given the aging of the population and the growing incidence of many vascular risk factors. Prevention of stroke includes--as for all other diseases--a "mass approach" aiming at decreasing the risk at the society level and an individual approach, aiming at reducing the risk in a given subject. The mass approach is primarily based on the identification and treatment of vascular risk factors and, if possible, in the implementation of protective factors. These measures are the basis of primary prevention but most of them have now been shown to be also effective in secondary prevention. The individual approach combines a vascular risk factor modification and various treatments addressing the specific subtypes of stroke, such as antiplatelet drugs for the prevention of cerebral infarction in large and small artery diseases of the brain, carotid endarterectomy or stenting for tight carotid artery stenosis, and oral anticoagulants for the prevention of cardiac emboli. There is a growing awareness of the huge evidence-to-practice gap that exists in stroke prevention largely due to socio-economic factors. Recent approaches include low cost intervention packages to reduce blood pressure and cheap "polypills" combining in a single tablet aspirin and several drugs to lower blood pressure and cholesterol. Polypill intake should however not lead to abandon the healthy life-style measures which remain the mainstay of stroke prevention.

  14. Challenges in preventive psychiatry

    Directory of Open Access Journals (Sweden)

    Pratap Sharan

    2017-01-01

    Full Text Available Prevention of mental disorders offers opportunities for decreasing enormous health, economic, and social burden attributable to them. Substantial evidence exist showing effectiveness of prevention strategies in reducing risk factors, strengthening protective factors, and decreasing psychiatric symptoms and disability. The government and various stakeholders should work toward developing policies on national and regional levels for the prevention of mental disorders and integrate them with various public policies. Research should be focused on enhancing the evidence base for these interventions. It should also cover additional domains such as quantification of the burden of disease associated with particular risk factors, the interaction between lifestyle behaviors and mental health, and integrating mental health outcome measures in large community-based interventions for noncommunicable diseases. Special efforts should be made in devising alternative strategies to deliver these programs in low-resource settings. Integrating the research from the field of neurosciences with prevention strategies can augment the effort in this direction. One of the important challenges is to design programs that are either indigenously developed or culturally adapted. Mental health professionals have to play an important and multiple roles to make prevention of mental and behavioral disorders a reality.

  15. Diabetes mellitus prevention.

    Science.gov (United States)

    Allende-Vigo, Myriam Zaydee

    2015-01-01

    The aim of this study was to review lifestyle modification interventions and pharmacological clinical studies designed to prevent diabetes and provide evidence-based recommendations for the prevention of Diabetes Mellitus. A review of relevant literature compiled via a literature search (PUBMED) of English-language publications between 1997 and 2010 was conducted. It is found that people at increased risk of developing type 2 diabetes mellitus can halt the development of the disease. Lifestyle modification intervention with reduction of 5%-10% of excess body weight and increase in moderate physical activity by 150 min/wk has consistently proven to reduce the appearance of diabetes in different at-risk populations. Pharmacologic interventions have also demonstrated the prevention of the appearance of diabetes in persons at risk. Bariatric surgery has decreased the appearance of diabetes patients in a select group of individuals. The progression from prediabetes to diabetes mellitus can be prevented. Lifestyle modification intervention changes with weight loss and increased physical activity are currently recommended for the prevention of diabetes.

  16. Vitamin D and Cancer Prevention

    Science.gov (United States)

    ... Cancer Genetics Services Directory Cancer Prevention Overview Research Vitamin D and Cancer Prevention On This Page What is vitamin D? Why are cancer researchers studying a possible connection ...

  17. Prevention of COPD exacerbations

    DEFF Research Database (Denmark)

    Vestbo, Jørgen; Lange, Peter

    2015-01-01

    Exacerbations have significant impact on the morbidity and mortality of patients with chronic obstructive pulmonary disease. Most guidelines emphasise prevention of exacerbations by treatment with long-acting bronchodilators and/or anti-inflammatory drugs. Whereas most of this treatment is evidence......-based, it is clear that patients differ regarding the nature of exacerbations and are likely to benefit differently from different types of treatment. In this short review, we wish to highlight this, suggest a first step in differentiating pharmacological exacerbation prevention and call for more studies...... in this area. Finally, we wish to highlight that there are perhaps easier ways of achieving similar success in exacerbation prevention using nonpharmacological tools....

  18. Prevention of food allergy

    DEFF Research Database (Denmark)

    Halken, S

    1997-01-01

    incidence of food allergy, especially cow's milk protein allergy/intolerance (CMPA/CMPI), in the first 4 years of life. As no studies have been conducted pertaining to the preventive effect of avoidance of milk and other foods after the age of 4-6 months, recommendation of preventive elimination diets......Development of a food allergy appears to depend on both genetic factors and exposure-especially in early infancy-to food proteins. In prospective studies, the effect of dietary allergy prevention programmes has only been demonstrated in high-risk infants, i.e. infants with at least one first degree...... relative with documented atopic disease. High-risk infants feeding exclusively on breast milk and/or extensively hydrolysed formula (eHF) combined with avoidance of cow's milk proteins and solid foods during at least the first 4 months of life are found to have a significant reduction in the cumulative...

  19. Prevention of acute malnutrition

    DEFF Research Database (Denmark)

    de Pee, Saskia; Grais, Rebecca; Fenn, Bridget

    2015-01-01

    Acute malnutrition is associated with increased morbidity and mortality risk. When episodes are prolonged or frequent, acute malnutrition is also associated with poor growth and development, which contributes to stunting Nutrition-specific and nutrition-sensitive strategies to prevent...... seasons or emergencies, or increased incidence of illness, such as diarrhea or measles, additional efforts are required to prevent and treat wasting. Special nutritious foods directly meet the increased nutrient requirements of children at risk for wasting; assistance to vulnerable households, in the form...... of cash or food, enables households to better meet the food, health, and other needs of household members and may increase resilience; water, sanitation, and hygiene (WASH) and health interventions help prevent and address illness and hence reduce wasting risk. The contributions of specific interventions...

  20. Prevention of food allergy

    DEFF Research Database (Denmark)

    Halken, S

    1997-01-01

    Development of a food allergy appears to depend on both genetic factors and exposure-especially in early infancy-to food proteins. In prospective studies, the effect of dietary allergy prevention programmes has only been demonstrated in high-risk infants, i.e. infants with at least one first degree...... incidence of food allergy, especially cow's milk protein allergy/intolerance (CMPA/CMPI), in the first 4 years of life. As no studies have been conducted pertaining to the preventive effect of avoidance of milk and other foods after the age of 4-6 months, recommendation of preventive elimination diets...... relative with documented atopic disease. High-risk infants feeding exclusively on breast milk and/or extensively hydrolysed formula (eHF) combined with avoidance of cow's milk proteins and solid foods during at least the first 4 months of life are found to have a significant reduction in the cumulative...

  1. Prevention of hand eczema

    DEFF Research Database (Denmark)

    Fisker, Maja H; Ebbehøj, Niels E; Vejlstrup, Søren Grove

    2018-01-01

    Objective Occupational hand eczema has adverse health and socioeconomic impacts for the afflicted individuals and society. Prevention and treatment strategies are needed. This study aimed to assess the effectiveness of an educational intervention on sickness absence, quality of life and severity...... of hand eczema. Methods PREVEX (PreVention of EXema) is an individually randomized, parallel-group superiority trial investigating the pros and cons of one-time, 2-hour, group-based education in skin-protective behavior versus treatment as usual among patients with newly notified occupational hand eczema...

  2. Preventing falls and fractures.

    Science.gov (United States)

    Ulfarsson, J; Robinson, B E

    1994-11-01

    One of four persons over age 65 in the community falls; those over age 75 in institutions fall more frequently. Falls, a complex phenomena suggesting present disease and predicting future disability, are caused by interactions between the environment and dynamic balance which is determined by the quality of sensory input, central processing, and motor responses. Clinical factors which predispose to falling often produce observable disturbances in gait and balance, making observation critical in assessment. Acute illness and drug therapy produce particularly preventable falls. Therapeutic exercise and environmental modification for safety are the clinical interventions most likely to successfully prevent fall-related injury.

  3. Preventing Errors in Laterality

    OpenAIRE

    Landau, Elliot; Hirschorn, David; Koutras, Iakovos; Malek, Alexander; Demissie, Seleshie

    2014-01-01

    An error in laterality is the reporting of a finding that is present on the right side as on the left or vice versa. While different medical and surgical specialties have implemented protocols to help prevent such errors, very few studies have been published that describe these errors in radiology reports and ways to prevent them. We devised a system that allows the radiologist to view reports in a separate window, displayed in a simple font and with all terms of laterality highlighted in sep...

  4. [Preventive strategies for dementia].

    Science.gov (United States)

    Müller, Patrick; Schmicker, Marlen; Müller, Notger G

    2017-05-01

    In the context of the demographically induced increase in the prevalence of dementia and the simultaneous lack of causal pharmacological therapies, preventive approaches are gaining in importance. By reducing risk factors and with measures which induce neuroplasticity successful aging can be supported. This article summarizes the current developments in preventing dementia by modification of life style factors. The main focus lies on the impact of cognitive and physical activity on neuroprotection. A promising approach combines both activities within a dance training program. Further studies that meet the demanding criteria of a randomized clinical trial are urgently needed.

  5. HOW TO PREVENT FRAUD?

    Directory of Open Access Journals (Sweden)

    Ionela – Corina Chersan

    2009-09-01

    Full Text Available Fraud can range from minor employee theft and unproductive behavior tomisappropriation of assets and fraudulent financial reporting. The risk of fraud can be reduced through a combination of prevention and detection measures. Moreover, prevention and deterrence measures are much less costly than the time and expense required for fraud detection and investigation. The information presented in this document generally is applicable to entities of all sizes. However, the degree to which certain programs and controls are applied in smaller, less-complex entities and the formality of theirapplication are likely to differ from larger organizations.

  6. Preventing Melanoma PSA (:60)

    Centers for Disease Control (CDC) Podcasts

    2015-06-02

    This 60 second public service announcement is based on the June 2015 CDC Vital Signs report. Skin cancer is the most common form of cancer in the U.S. In 2011, there were more than 65,000 cases of melanoma, the most deadly form of skin cancer. Learn how everyone can help prevent skin cancer.  Created: 6/2/2015 by National Center for Chronic Disease Prevention and Health Promotion (NCCDPHP).   Date Released: 6/2/2015.

  7. Building in Prevention

    DEFF Research Database (Denmark)

    Troelsen, Jens

    2013-01-01

    Health interventions can be seen as initiatives that seek to prevent the emergence and development of impaired public health. Initiatives made in the area of prophylaxis can be experienced as anything from direct invasions of personal freedom to small traffic bumps on the roads. In this spectrum...... preventive work might be changed to direct focus onto a greater extent on establishing frameworks for people to master their own lives instead of one-sided initiatives, which leave the individual with a sense of guilt at their own illness....

  8. Aspirin for Primary Prevention.

    Science.gov (United States)

    Richman, Ilana B; Owens, Douglas K

    2017-07-01

    Aspirin reduces the risk of nonfatal myocardial infarction and stroke, and the risk of colorectal cancer. Aspirin increases the risk of gastrointestinal and intracranial bleeding. The best available evidence supports initiating aspirin in select populations. In 2016, the US Preventive Services Task Force recommended initiating aspirin for the primary prevention of both cardiovascular disease and colorectal cancer among adults ages 50 to 59 who are at increased risk for cardiovascular disease. Adults 60 to 69 who are at increased cardiovascular disease risk may also benefit. There remains considerable uncertainty about whether younger and older patients may benefit. Copyright © 2017 Elsevier Inc. All rights reserved.

  9. Gender-Based Violence Prevention. Issues in Prevention

    Science.gov (United States)

    Higher Education Center for Alcohol, Drug Abuse, and Violence Prevention, 2012

    2012-01-01

    This issue of "Issues in Prevention" focuses on gender-based violence prevention. This issue contains the following articles: (1) Preventing Gender-Based Violence: An Overview (Linda Langford); (2) Q&A With Amelia Cobb; (3) Denim Day at HBCUs; (4) Dear Colleague Letter; (5) ED Grants for Violence Prevention; and (6) Higher Education Center…

  10. Vaccination and the prevention problem.

    Science.gov (United States)

    Dawson, Angus

    2004-11-01

    This paper seeks to critically review a traditional objection to preventive medicine (which I call here the 'prevention problem'). The prevention problem is a concern about the supposedly inequitable distribution of benefits and risks of harm resulting from preventive medicine's focus on population-based interventions. This objection is potentially applicable to preventive vaccination programmes and could be used to argue that such programmes are unethical. I explore the structure of the prevention problem by focusing upon two different types of vaccination (therapeutic vaccination and preventive vaccination). I argue that the 'prevention problem' cannot be fairly applied to the case of preventive vaccination because such programmes do not just focus upon benefits at the level of populations (as is claimed by the prevention problem). Most such preventive vaccination programmes explicitly seek to create and maintain herd protection. I argue that herd protection is an important public good which is a benefit shared by all individuals in the relevant population. This fact can then be used to block the 'prevention problem' argument in relation to preventive vaccination programmes. I conclude by suggesting that whilst the future development and use of therapeutic vaccines does raise some interesting ethical issues, any ethical objections to prophylactic vaccination on the basis of the 'prevention problem' will not be overcome through the substitution of therapeutic vaccines for preventive vaccines; indeed, the 'prevention problem' fails on its own terms in relation to preventive vaccination programmes.

  11. To Prevent Misbehavior

    OpenAIRE

    Telep, Valya Goodwin, 1955-

    2009-01-01

    This series of lessons was prepared for parents like you - parents who want to do a better job of disciplining their children. The lessons were especially written for parents of preschool children, ages two to six, but some of the discipline methods are appropriate for older children, too. This lesson focuses on preventing misbehavior.

  12. Prevention of postoperative ileus

    DEFF Research Database (Denmark)

    Holte, Kathrine; Kehlet, H

    2002-01-01

    mediators. We update evidence on the advances in the prevention and treatment on PI. As single interventions, continuous thoracic epidural analgesia with local anesthetics and minimally invasive surgery are the most efficient interventions in the reduction of PI. The effects of pharmacological agents have...

  13. Preventing School Violence

    Science.gov (United States)

    Rulloda, Rudolfo Barcena

    2011-01-01

    School violence has mushroomed into a devastating epidemic and is deteriorating the basic foundation of education. In this article, the author will present several teaching strategies for preventing school violence from becoming an arduous enigma within the classroom and school environments, and focus on assessment and reflection in order to…

  14. Preventing Adolescent Suicide.

    Science.gov (United States)

    Capuzzi, David

    The adolescent at risk for suicidal preoccupation and behavior has become an increasing concern for schools and communities. This paper presents some of the causes of teen suicide, things adults should know about adolescent suicide prevention, and what can be done to help such youth. The transition to adolescence is a complex time when many values…

  15. Preventive medicine in 2030.

    Science.gov (United States)

    Freudenberg, Nicholas

    2012-12-01

    This invited commentary imagines two futures for preventive medicine and public health in the Year 2030. Using satire, the commentary describes one future in which large corporations control public health and another where a robust public sector plays the leading role. Copyright © 2012. Published by Elsevier Inc.

  16. Eating Disorder Prevention Programming.

    Science.gov (United States)

    Sapia, Jennifer L.

    This paper provides information for school psychologists regarding the necessity and benefits of school-based prevention programming for students at risk for developing eating disorders (i.e., females). School-based programming is a cost-effective means of reaching the largest number of individuals at once and identifying those individuals…

  17. Police and Suicide Prevention.

    Science.gov (United States)

    Marzano, Lisa; Smith, Mark; Long, Matthew; Kisby, Charlotte; Hawton, Keith

    2016-05-01

    Police officers are frequently the first responders to individuals in crisis, but generally receive little training for this role. We developed and evaluated training in suicide awareness and prevention for frontline rail police in the UK. To investigate the impact of training on officers' suicide prevention attitudes, confidence, and knowledge. Fifty-three participants completed a brief questionnaire before and after undertaking training. In addition, two focus groups were conducted with 10 officers to explore in greater depth their views and experiences of the training program and the perceived impact on practice. Baseline levels of suicide prevention attitudes, confidence, and knowledge were mixed but mostly positive and improved significantly after training. Such improvements were seemingly maintained over time, but there was insufficient power to test this statistically. Feedback on the course was generally excellent, notwithstanding some criticisms and suggestions for improvement. Training in suicide prevention appears to have been well received and to have had a beneficial impact on officers' attitudes, confidence, and knowledge. Further research is needed to assess its longer-term effects on police attitudes, skills, and interactions with suicidal individuals, and to establish its relative effectiveness in the context of multilevel interventions.

  18. [Improving suicide prevention].

    Science.gov (United States)

    Debout, Michel

    2017-04-01

    Suicidal thoughts precede a suicide attempt. Knowing the people who are exposed to such thoughts enables prevention to be improved. The results of a study of the general population show that one in five French people claim to have already seriously considered committing suicide. This represents a particularly concerning public health issue. Copyright © 2017. Published by Elsevier Masson SAS.

  19. Responsible Hospitality. Prevention Updates

    Science.gov (United States)

    Colthurst, Tom

    2004-01-01

    Responsible Hospitality (RH)--also called Responsible Beverage Service (RBS)--encompasses a variety of strategies for reducing risks associated with the sale and service of alcoholic beverages. RH programs have three goals: (1) to prevent illegal alcohol service to minors; (2) to reduce the likelihood of drinkers becoming intoxicated; and (3) to…

  20. Preventable amputations in Ethiopia

    African Journals Online (AJOL)

    Sew. Mi. 6. Discussion. Gas gangre. Total. This study thus confirms that at the present time about a half of the limbs being amputated at our. Hospital (and probably throughout Ethiopia) could have been saved, or prevented by relatively simple means. These include reducing the number of road traffic accident casualties by ...

  1. Bullying Prevention for Kids

    Centers for Disease Control (CDC) Podcasts

    2012-01-19

    This podcast discusses what victims of bullying may experience and provides recommendations for coping with it.  Created: 1/19/2012 by National Center for Injury Prevention and Control (NCIPC).   Date Released: 1/19/2012.

  2. Teenage Pregnancy Prevention.

    Science.gov (United States)

    Peters, Sheila; And Others

    1991-01-01

    Peer counselors and staff members describe the "I Have a Future" Program at Meharry Medical College in Nashville (Tennessee). This program focuses on pregnancy prevention by providing education, health care, and increased life options; social skills training; an entrepreneurial program; and separate classes for African-American youth.…

  3. Wound Care: Preventing Infection

    Science.gov (United States)

    ... or wearing your Immediate Post-op or preliminary prosthesis; keep it elevated whenever possible. The limb should be raised above the level of your heart to prevent swelling. Take care of your whole self – body, mind, and spirit. Eat well and drink plenty ...

  4. Student Leadership. Prevention Updates

    Science.gov (United States)

    Langford, Linda; DeJong, William

    2010-01-01

    Campus-based efforts to reduce alcohol and other drug abuse and violence (AODV) will be more successful if they involve a wide range of stakeholders--including students--who can contribute to the program's design, implementation, and evaluation. Students provide a unique perspective on AODV prevention, and they can also bring a certain authority…

  5. Preventing Skin Cancer

    Centers for Disease Control (CDC) Podcasts

    2016-05-18

    A man and a woman talk about how they’ve learned to protect their skin from the sun over the years. .  Created: 5/18/2016 by National Center for Chronic Disease Prevention and Health Promotion (NCCDPHP).   Date Released: 5/18/2016.

  6. Injury Prevention Research

    Centers for Disease Control (CDC) Podcasts

    2009-09-01

    Research provides the knowledge that we need to understand what is possible, what is not, and the best way to proceed in our intervention efforts.  Created: 9/1/2009 by National Center for Injury Prevention and Control (NCIPC).   Date Released: 9/1/2009.

  7. Prevention of relapsing backache

    Directory of Open Access Journals (Sweden)

    Raspe, Heiner

    2006-05-01

    Full Text Available Background: The condition of non-specific back pain is characterized by high prevalence, non satisfactory therapeutic options and severe socioeconomic consequences. Therefore prevention seems an attractive option to downsize the problem. However, the construction of effective preventive measures is complicated by the obscure aetiology of the condition, the multidimensionality of risk and prognostic factors (bio psychosocial model! and the variability of its natural as well as clinical course. This led to the development of a wide variety of preventive measures: e. g. exercise programs, educational measures (including back school, ergonomic modification of the work environment, mechanical supports (e. g. back belts as well as multidisciplinary interventions. For two reasons the workplace seems to be a suitable setting for prevention. First, because a number of strong risk factors are associated with working conditions and second, because it allows addressing a large proportion of the adult population. Against this background the assessment at hand sets out to answer the following questions: What is the amount and methodological quality of the available scientific literature on the effectiveness of back pain prevention in the workplace environment? What are effective measures for the prevention of back pain and its consequences in the workplace environment and how effective are they? Is back pain prevention in the workplace environment cost-effective? Is there a need for more research? As primary outcomes for effectiveness the assessment will focus on time lost from work and the frequency and duration of episodes with back pain. The preventive measures assessed belong to the following categories: exercise programs, educational and information measures, multidimensional interventions, back belts, lifting teams and ergonomic interventions. Methods: The assessment is based on a systematic review of the published literature according to the

  8. [Prevention of preeclampsia - review].

    Science.gov (United States)

    Vlk, R; Matěcha, J; Drochýtek, V

    2015-06-01

    Preeclampsia is a serious condition that affects about five percent of pregnant women. The disorder itself or related complications are responsible for a significant percentage of maternal and fetal morbidity, even in developed countries. Although our understanding of etiology is still limited, the possibility of detecting and evaluating certain angiogenic factors by the end of the first trimester gives food for thought about prospects for preeclampsia prevention. Secondary prevention is currently based mostly on the effort to pharmacologically affect the spiral artery transformation and development of the abnormal placental microcirculation which lead to clinical symptoms of preeclampsia. The preventive treatment options are narrow. Greatest effect was noted with acetylsalicylic acid medication in the at-risk population. The dose of 75-150 mg per day is considered optimal. The treatment should start before the 16th gestational week; later initiation of therapy is associated with considerably smaller effect. The incidence of the early-onset preeclampsia (preventive treatment affects the late-onset preeclampsia only minimally. Calcium supplementation is effective only in women with low calcium intake. Question for the future as well as subject of several studies is a clinical significance of low molecular weight heparin and sildenafil.

  9. Travel health prevention.

    Science.gov (United States)

    Korzeniewski, Krzysztof

    All around the world there has been a rapid growth in the number of international travels. According to the World Tourism Organisation the number of international tourist arrivals reached 1,235 billion in 2016 and continues to grow at a high rate. This has been much due to the development of air transport (including low-cost airlines), increasingly common economic migration, a growing number of travellers visiting friends and relatives, and an increase in medical tourism. With tropical destinations becoming increasingly popular among travellers, doctors have seen a rising number of patients who seek medical advice on health risks prevalent in hot countries and health prevention measures to be taken in tropical destinations, especially where sanitation is poor. The risk for developing a medical condition while staying abroad depends on a variety of factors, including the traveller's general health condition, health prevention measures taken before or during travel (vaccinations, antimalarial chemoprophylaxis, health precautions during air, road and sea travel, proper acclimatisation, prevention of heat injuries, protection against local flora and fauna, personal hygiene, water, food and feeding hygiene), as well as the prevalence of health risk factors in a given location. Health prevention is a precondition for safe travel and maintaining good physical health; in the era of a rapid growth in international tourism it has become of key importance for all travellers.

  10. Scabies: Prevention and Control

    Science.gov (United States)

    ... prevent possible reexposure and reinfestation. Bedding and clothing worn or used next to the skin anytime during the 3 days before treatment should be machine washed and dried using the hot water and hot dryer cycles or be dry-cleaned. ...

  11. Ounce of Prevention.

    Science.gov (United States)

    Cleary, Frank J.; Bell, Nathan

    1990-01-01

    Binghampton (New York) Schools begin their dropout prevention efforts even before children are born--as early as the third trimester of pregnancy. One intervention program is PACT (Parents and Children Together), which helps parents become better "first teachers." The program's success derives from parents' effectiveness as teachers and…

  12. Preventing Pressure Sores

    Medline Plus

    Full Text Available ... OTR/L Sarah Harrison, OT Anne Bryden, OT The Role of the Social Worker after Spinal Cord Injury Patti Rogers, ... do to prevent pressure sores? play_arrow What role does diet and hydration play in ... play_arrow What are the six stages of a pressure sore and how ...

  13. Prevention of nuclear war

    International Nuclear Information System (INIS)

    Anon.

    1990-01-01

    Removing the threat of a nuclear war-as the General Assembly formally stated in the Final Document of its first special session devoted to disarmament, in 1978-is considered to be the task of the present day. In that Document, the General Assembly sought to establish principles, guidelines and procedures for preventing nuclear war. It declared that to that end, it was imperative to remove the threat of nuclear weapons, to halt and reverse the nuclear-arms race until the total elimination of nuclear weapons and their delivery systems had been achieved (see chapter iv), and to prevent the proliferation of nuclear weapons (see chapter VII). At the same time, it called for other measures designed to prevent the outbreak of nuclear war and to lessen the danger of the treat or use of nuclear weapons. The Assembly's clear call for action was dictated by the awareness that there was no insuperable barrier dividing peace from war and that, unless nations brought the spiralling nuclear-arms race to an end, the day might come when nuclear weapons would actually be used, with catastrophic consequences. In adopting the Final Document, the international community achieved, for the first time, a consensus on an international disarmament strategy having as its immediate goal the elimination of the danger of a nuclear war and the implementation of measures to halt and reverse the arms race. The General Assembly, at its second special session on disarmament, in 1982, reaffirmed the validity of the 1978 Final Document. This paper reports that nuclear issues and in particular the prevention of nuclear war remain, however, major concerns of all States. Undoubtedly, all nations have a vital interest in the negotiation of effective measures for her prevention of nuclear war, since nuclear weapons pose a unique threat to human survival. If nuclear war were to occur, its consequences would be global, not simple regional

  14. Let's prevent diabetes

    DEFF Research Database (Denmark)

    Gray, Laura J.; Khunti, Kamlesh; Williams, Sian

    2012-01-01

    Background: The prevention of type 2 diabetes is a globally recognised health care priority, but there is a lack of rigorous research investigating optimal methods of translating diabetes prevention programmes, based on the promotion of a healthy lifestyle, into routine primary care. The aim...... of the study is to establish whether a pragmatic structured education programme targeting lifestyle and behaviour change in conjunction with motivational maintenance via the telephone can reduce the incidence of type 2 diabetes in people with impaired glucose regulation (a composite of impaired glucose...... of type 2 diabetes. Secondary outcomes include changes in HbA1c, blood glucose levels, cardiovascular risk, the presence of the Metabolic Syndrome and the cost-effectiveness of the intervention.Methods: The study consists of screening and intervention phases within 44 general practices coordinated from...

  15. [Anxiety prevention among schoolchildren].

    Science.gov (United States)

    Essau, C A; Conradt, J; Ederer, E M

    2004-09-01

    The FRIENDS programme is a prevention and early intervention programme, which teaches children strategies to cope with anxiety and challenging situations. This paper examines the social validity of the German version of the FRIENDS programme using data from a large-scale study on the prevention of anxiety disorders in schoolchildren, which is funded by the Dr. Karl-Wilder Stiftung. In this paper, data of 208 schoolchildren (aged 9 to 12 years) are used. Results show that the children and their parents were highly satisfied with the FRIENDS programme. Childrens attendance and completion of their homework assignments were very high. Both the children and their parents rated relaxation exercises and thinking helpful thoughts as being more useful for the children than other skills. Treatment acceptability correlated significantly with the childrens clinical outcome. The implications of our findings for future research are discussed.

  16. Preventive Radiation Protection Act

    International Nuclear Information System (INIS)

    Roewer, H.

    1988-01-01

    The commentary is intended to contribute to protection of the population by a practice-oriented discussion and explanation of questions arising in connection with the Preventive Radiation Protection Act. Leaving aside discussions about abandonment of nuclear power, or criticism from any legal point of view, the commentary adopts the practical approach that accepts, and tries to help implementing, the act as it is. It is a guide for readers who are not experts in the law and gives a line of orientation by means of explanations and sometimes by citations from other acts (in footnotes). The commentary also presents the EURATOM Directive No. 3954/87 dated 22 December 1987, the EC Directive No. 3955/87 dated 22 December 1987, and the EC Directive No. 1983/88 dated 5 July 1988. A tabular survey shows the system of duties and competences defined by the Preventive Radiation Protection Act. (RST) [de

  17. [Prevention of diabetic foot].

    Science.gov (United States)

    Metelko, Zeljko; Brkljacić Crkvencić, Neva

    2013-10-01

    Diabetic foot (DF) is the most common chronic complication, which depends mostly on the duration and successful treatment of diabetes mellitus. Based on epidemiological studies, it is estimated that 25% of persons with diabetes mellitus (PwDM) will develop the problems with DF during lifetime, while 5% do 15% will be treated for foot or leg amputation. The treatment is prolonged and expensive, while the results are uncertain. The changes in DF are influenced by different factors usually connected with the duration and regulation of diabetes mellitus. The first problems with DF are the result of misbalance between nutritional, defensive and reparatory mechanisms on the one hand and the intensity of damaging factors against DF on the other hand. Diabetes mellitus is a state of chronic hyperglycemia, consisting of changes in carbohydrate, protein and fat metabolism. As a consequence of the long duration of diabetes mellitus, late complications can develop. Foot is in its structure very complex, combined with many large and small bones connected with ligaments, directed by many small and large muscles, interconnected with many small and large blood vessels and nerves. Every of these structures can be changed by nutritional, defensive and reparatory mechanisms with consequential DE Primary prevention of DF includes all measures involved in appropriate maintenance of nutrition, defense and reparatory mechanisms.First, it is necessary to identify the high-risk population for DF, in particular for macrovascular, microvascular and neural complications. The high-risk population of PwDM should be identified during regular examination and appropriate education should be performed. In this group, it is necessary to include more frequent and intensified empowerment for lifestyle changes, appropriate diet, regular exercise (including frequent breaks for short exercise during sedentary work), regular self control of body weight, quit smoking, and appropriate treatment of glycemia

  18. Prevention of preeclampsia.

    Science.gov (United States)

    Grotegut, Chad A

    2016-12-01

    Preeclampsia is a common complication of pregnancy that is associated with an increased risk of maternal and neonatal morbidity and mortality. Currently, delivery is the only cure for preeclampsia; therefore, effective prevention and treatment options for this condition are sorely needed. In the current issue of the JCI, Mirzakhani et al. report the findings of the Vitamin D Antenatal Asthma Reduction Trial (VDAART), a well-conducted large, randomized, double-blind, placebo-controlled trial of vitamin D supplementation for the prevention of preeclampsia. Though vitamin D supplementation had no effect on the risk of preeclampsia, reduced maternal serum vitamin D levels did correlate with preeclampsia risk. Mirzakhani and colleagues identified a number of gene pathways that are differentially regulated among women with low serum vitamin D levels who develop preeclampsia. These results indicate that further research on the role of vitamin D in preeclampsia is warranted.

  19. The Prevention of Thalassemia

    Science.gov (United States)

    Cao, Antonio; Kan, Yuet Wai

    2013-01-01

    The thalassemias are among the most common inherited diseases worldwide, affecting individuals originating from the Mediterranean area, Middle East, Transcaucasia, Central Asia, Indian subcontinent, and Southeast Asia. As the diseases require long-term care, prevention of the homozygous state constitutes a major armament in the management. This article discusses the major prevention programs that are set up in many countries in Europe, Asia, and Australia, often drawing from the experience in Sardinia. These comprehensive programs involve carrier detections, molecular diagnostics, genetic counseling, and prenatal diagnosis. Variability of clinical severity can be attributable to interactions with α-thalassemia and mutations that increase fetal productions. Special methods taht are currently quite expensive and not widely applicable are preimplantation and preconception diagnosis. The recent successful studies of fetal DNA in maternal plasma may allow future prenatal diagnosis that is noninvasive for the fetus. PMID:23378598

  20. Teleophthalmology in preventive medicine

    CERN Document Server

    Michelson, Georg

    2014-01-01

    This book provides an up-to-date overview of the clinical applications, methods, and technologies of teleophthalmology within the field of preventive medicine. The ability of novel methods to detect the initial signs of neurodegenerative diseases on the basis of alterations in the retina is reviewed, and detailed attention is paid to the role of teleophthalmology in screening for vision-threatening diseases such as diabetic retinopathy, glaucoma, and age-related macular degeneration. A major part of the book is devoted to novel imaging methods and the latest information technologies, including advanced mobile communication and Web 2.0 applications in teleophthalmology. In addition, the initial projects of an interdisciplinary cooperation in preventive medicine are described. All of the authors are experienced in the scientific and practical aspects of teleophthalmology, including e-learning, and have produced a book that will meet the needs of all medical care providers interested in using teleophthalmology.

  1. Cancer prevention by phytochemicals.

    Science.gov (United States)

    Nishino, Hoyoku; Murakoshi, Michiaki; Mou, Xiao Yang; Wada, Saeri; Masuda, Mitsuharu; Ohsaka, Yasuhito; Satomi, Yoshiko; Jinno, Kenji

    2005-01-01

    Information has been accumulated indicating that diets rich in vegetables and fruits can reduce the risk of a number of chronic diseases, including cancer, cardiovascular disease, diabetes and age-related macular degeneration. Phytochemicals (various factors in plant foods), such as carotenoids, antioxidative vitamins, phenolic compounds, terpenoids, steroids, indoles and fibers, have been considered responsible for the risk reduction. Among them, a mixture of natural carotenoids has been studied extensively and proven to show beneficial effects on human cancer prevention.

  2. Models for effective prevention.

    Science.gov (United States)

    Perry, C L; Kelder, S H

    1992-07-01

    The social influence models do provide some optimism for primary prevention efforts. Prevention programs appear most effective when 1) the target behavior of the intervention has received increasing societal disapproval (such as cigarette smoking), 2) multiple years of behavioral health education are planned, and 3) community-wide involvement or mass media complement a school-based peer-led program (45,46). Short-term programs and those involving alcohol use have had less favorable outcomes. Future research in primary prevention should address concerns of high-risk groups and high-risk countries, such as lower income populations in the United States or countries that have large adolescent homeless populations. The utilization of adolescent leaders for program dissemination might be particularly critical in these settings. A second major and global concern should focus upon alcohol use and alcohol-related problems. In many communities adolescent alcohol use is normative and even adult supported. Thus, young people are getting quite inconsistent messages on alcohol from their schools, from TV, from peers, and from parents. This inconsistency may translate into many tragic and avoidable deaths for young people. Clearly, in the area of alcohol-related problems, community-wide involvement may be necessary. A third direction for prevention research should involve issues of norms, access, and enforcement including policy interventions, such as involve the availability of cigarette vending machines or the ease of under-age buying or levels of taxation. These methods affect adolescents more acutely since their financial resources, for the most part, are more limited. These policy level methods also signify to adolescents what adults consider appropriate.(ABSTRACT TRUNCATED AT 250 WORDS)

  3. Culturally Relevant Cyberbullying Prevention

    OpenAIRE

    Phillips, Gregory John

    2017-01-01

    In this action research study, I, along with a student intervention committee of 14 members, developed a cyberbullying intervention for a large urban high school on the west coast. This high school contained a predominantly African American student population. I aimed to discover culturally relevant cyberbullying prevention strategies for African American students. The intervention committee selected video safety messages featuring African American actors as the most culturally relevant cyber...

  4. Prevention of criticality accidents

    International Nuclear Information System (INIS)

    Canavese, S.I.

    1982-01-01

    These notes used in the postgraduate course on Radiological Protection and Nuclear Safety discuss macro-and microscopic nuclear constants for fissile materials systems. Critical systems: their definition; criteria to analyze the critical state; determination of the critical size; analysis of practical problems about prevention of criticality. Safety of isolated units and of sets of units. Application of standards. Conception of facilities from the criticality control view point. (author) [es

  5. Prevention of malignant neoplasms

    Directory of Open Access Journals (Sweden)

    D. G. Zaridze

    2017-01-01

    Full Text Available Research in causation of cancer is an important part of cancer research in general and is an essential prerequisite for cancer prevention. The effective primary prevention is not visible without evidence based knowledge in the causation of cancer in humans.There is sufficient evidence that certain life style and environment factors cause cancer in humans. These factors include: smoking and other types of tobacco consumption, overweight and obesity, lack of physical activity, diet rich in processed meat and poor in vegetables and fruits, certain types of viral and bacterial infection, ultraviolet radiation, ionizing radiation, ambient air pollution, carcinogens at workplace, exogenous hormones.Cancer mortality is decreasing in majority of developed countries, including Russia. This mortality trend is mostly due to decrease in incidence and death rates of lung and other smoking related cancers and is caused by decline in smoking prevalence and change in tar content of cigarette smoke.In Russia trend in mortality from all cancers is as well determined by decrease in incidence and mortality from gastric cancer, which is due to decline in prevalence of Helicobacter pylori infection and improvement of diet, increase in consumption of fruits and vegetables. Thus the decline in cancer mortality is mostly the result of primary prevention which is the most effective avenue of cancer control. 

  6. The prevention of dementia.

    Science.gov (United States)

    Peters, Ruth

    2009-05-01

    Dementia is prevalent in older adults and the population is ageing. Many factors have been associated with dementia and anything that may aid the prevention of dementia is of importance. The literature in this area was evaluated and information relating to the various factors that may impact upon the prevention of dementia is presented below. Factors that have been associated with a possible increased risk of developing dementia include high blood pressure, (at least in midlife), high body mass index, smoking and possibly diabetes although the evidence is mixed. There is currently no clear evidence with regard to cholesterol and metabolic syndrome although both may be implicated. Having education and maintaining a Mediterranean diet, including vegetable, fruit and fish intake, have been linked to a lower incidence of dementia as has low to moderate alcohol intake. Although care must be taken with the latter given the different characteristics of the studies reporting on alcohol and dementia. It may be that risk and protective factors vary with age, however, in the absence of prophylactic treatment it seems likely that the maintenance of a healthy lifestyle may represent the best option with regard to the prevention of dementia. (c) 2008 John Wiley & Sons, Ltd.

  7. Osteoradionecrosis prevention myths

    International Nuclear Information System (INIS)

    Wahl, Michael J.

    2006-01-01

    Purpose: To critically analyze controversial osteoradionecrosis (ORN) prevention techniques, including preradiation extractions of healthy or restorable teeth and the use of prophylactic antibiotics or hyperbaric oxygen (HBO) treatments for preradiation and postradiation extractions. Methods: The author reviewed ORN studies found on PubMed and in other article references, including studies on overall ORN incidence and pre- and postradiation incidence, with and without prophylactic HBO or antibiotics. Results: Owing in part to more efficient radiation techniques, the incidence of ORN has been declining in radiation patients over the last 2 decades, but the prevention of ORN remains controversial. A review of the available literature does not support the preradiation extraction of restorable or healthy teeth. There is also insufficient evidence to support the use of prophylactic HBO treatments or prophylactic antibiotics before extractions or other oral surgical procedures in radiation patients. Conclusions: To prevent ORN, irradiated dental patients should maintain a high level of oral health. A preradiation referral for a dental evaluation and close collaboration by a multidisciplinary team can be invaluable for radiation patients. As with most other dental patients, restorable and healthy teeth should be retained in irradiated patients. The use of prophylactic HBO or antibiotics should be reconsidered for preradiation and postradiation extractions

  8. Guidelines for prevention in psychology.

    Science.gov (United States)

    2014-04-01

    The effectiveness of prevention to enhance human functioning and reduce psychological distress has been demonstrated. From infancy through adulthood, access to preventive services and interventions is important to improve the quality of life and human functioning and reduce illness and premature death. The importance of prevention is consistent with the Patient Protection and Affordable Care Act of 2010. Even with the increased focus on prevention, psychology training programs rarely require specific courses on prevention. In particular, conceptualizations about best practices in prevention, particularly at the environmental level, are lacking. Therefore, psychologists engaged in prevention can benefit from a set of guidelines that address and inform prevention practices. Accordingly, the Guidelines for Prevention in Psychology are intended to "inform psychologists, the public, and other interested parties regarding desirable professional practices" in prevention. The Prevention Guidelines are recommended based on their potential benefits to the public and the professional practice of psychology. They support prevention as an important area of practice, research, and training for psychologists. The Guidelines give increased attention to prevention within APA, encouraging psychologists to become involved with preventive activities relevant to their area of practice. (PsycINFO Database Record (c) 2014 APA, all rights reserved).

  9. Preventing congenital toxoplasmosis.

    Science.gov (United States)

    Lopez, A; Dietz, V J; Wilson, M; Navin, T R; Jones, J L

    2000-03-31

    Toxoplasmosis is caused by infection with the protozoan parasite Toxoplasma gondii. Acute infections in pregnant women can be transmitted to the fetus and cause severe illness (e.g., mental retardation, blindness, and epilepsy). An estimated 400-4,000 cases of congenital toxoplasmosis occur each year in the United States. Of the 750 deaths attributed to toxoplasmosis each year, 375 (50%) are believed to be caused by eating contaminated meat, making toxoplasmosis the third leading cause of foodborne deaths in this country. Toxoplasma can be transmitted to humans by three principal routes: a) ingestion of raw or inadequately cooked infected meat; b) ingestion of oocysts, an environmentally resistant form of the organism that cats pass in their feces, with exposure of humans occurring through exposure to cat litter or soil (e.g., from gardening or unwashed fruits or vegetables); and c) a newly infected pregnant woman passing the infection to her unborn fetus. RECOMMENDATIONSFOR PREVENTION: Toxoplasma infection can be prevented in large part by a) cooking meat to a safe temperature (i.e., one sufficient to kill Toxoplasma); b) peeling or thoroughly washing fruits and vegetables before eating; c) cleaning cooking surfaces and utensils afterthey have contacted raw meat, poultry, seafood, or unwashed fruits or vegetables; d) pregnant women avoiding changing cat litter or, if no one else is available to change the cat litter, using gloves, then washing hands thoroughly; and e) not feeding raw or undercooked meat to cats and keeping cats inside to prevent acquisition of Toxoplasma by eating infected prey. Priorities for research were discussed at a national workshop sponsored by CDC in September 1998 and include a) improving estimates of the burden of toxoplasmosis, b) improving diagnostic tests to determine when a person becomes infected with Toxoplasma, and c) determining the applicability of national screening programs. Many cases of congenital toxoplasmosis can be

  10. MR imaging of orbital blow-out fractures

    Energy Technology Data Exchange (ETDEWEB)

    Kato, Tsutomu; Sawada, Satoshi; Shikaura, Sachiko; Uda, Mitsunobu; Kawa, Soukichi; Tanaka, Yoshimasa; Miki, Hirohiko; Yamanouchi, Yasuo; Inagaki, Ryusuke

    1988-02-01

    We investigated the method of visualization in the MRI of 5 cases of orbital floor fracture. With a spin-echo image with a short TR and TE, the fatty component and the muscle component could be identified easily. In a routine case of orbital floor fracture, a good demonstration could be obtained with an oblique sagittal view along with the optic nerve. However, in some cases, coronal views were also necessary.

  11. MT Lajpatrai blow-out studies at Bombay harbour

    Digital Repository Service at National Institute of Oceanography (India)

    Fondekar, S.P.

    The area around the tanker MT Lajpatrai was monitored for oil pollution studies. Measurements were carried out on the concentration of petroleum hydrocarbons in water and sediment samples along with visual observations on oil slicks...

  12. Deep-sea benthic footprint of the deepwater horizon blowout.

    Directory of Open Access Journals (Sweden)

    Paul A Montagna

    Full Text Available The Deepwater Horizon (DWH accident in the northern Gulf of Mexico occurred on April 20, 2010 at a water depth of 1525 meters, and a deep-sea plume was detected within one month. Oil contacted and persisted in parts of the bottom of the deep-sea in the Gulf of Mexico. As part of the response to the accident, monitoring cruises were deployed in fall 2010 to measure potential impacts on the two main soft-bottom benthic invertebrate groups: macrofauna and meiofauna. Sediment was collected using a multicorer so that samples for chemical, physical and biological analyses could be taken simultaneously and analyzed using multivariate methods. The footprint of the oil spill was identified by creating a new variable with principal components analysis where the first factor was indicative of the oil spill impacts and this new variable mapped in a geographic information system to identify the area of the oil spill footprint. The most severe relative reduction of faunal abundance and diversity extended to 3 km from the wellhead in all directions covering an area about 24 km(2. Moderate impacts were observed up to 17 km towards the southwest and 8.5 km towards the northeast of the wellhead, covering an area 148 km(2. Benthic effects were correlated to total petroleum hydrocarbon, polycyclic aromatic hydrocarbons and barium concentrations, and distance to the wellhead; but not distance to hydrocarbon seeps. Thus, benthic effects are more likely due to the oil spill, and not natural hydrocarbon seepage. Recovery rates in the deep sea are likely to be slow, on the order of decades or longer.

  13. Development of Preventive Measures to Prevent School Absenteeism in Twente

    NARCIS (Netherlands)

    Van Liere, Annette; Ritzen, Henk; Brand-Gruwel, Saskia

    2011-01-01

    Van Liere, A., Ritzen, H., & Brand-Gruwel, S. (2011, August). Development of Preventive Measures to Prevent School Absenteeism in Twente. Paper presented at 14th Biennial Conference for Research on Learning and Instruction of EARLI, Exeter, England.

  14. Community Colleges--Prevention Challenges. Issues in Prevention

    Science.gov (United States)

    Higher Education Center for Alcohol, Drug Abuse, and Violence Prevention, 2012

    2012-01-01

    This issue of "Issues in Prevention" focuses on prevention challenges facing community colleges. This issue contains the following articles: (1) Prevention at Community Colleges; (2) Q&A With William Auvenshine; (3) Chancellor's Initiative at the University of Wisconsin-Stout; (4) Alcohol Marketing in the Digital Age; and (5) Higher Education…

  15. Role of Enforcement in Prevention. Issues in Prevention

    Science.gov (United States)

    Higher Education Center for Alcohol, Drug Abuse, and Violence Prevention, 2012

    2012-01-01

    This issue of "Issues in Prevention" focuses on the role of enforcement in prevention. This issue contains the following articles: (1) What the Evidence Tells Us about the Role of Enforcement in Prevention; (2) Campus Briefs; (3) Q&A with Charles Cychosz; and (4) Higher Education Center Resources.

  16. [AIDS prevention in Germany].

    Science.gov (United States)

    Pott, E

    2007-04-01

    In 1987 the national AIDS prevention campaign "Gib AIDS keine Chance" (Don't give AIDS a chance) was started in Germany. After a very difficult and controversial political debate about a probably successful response to AIDS, in the end a political decision was made in favour of the implementation of a long term "social learning strategy". Thus, since then the Bundeszentrale für gesundheitliche Aufklärung (Federal Centre for Health Education, BZgA) has been running the campaign on behalf of the Federal Ministry of Health. The result of this prevention program is a low rate of infections. In Germany there were 2600 newly diagnosed infections in 2005: 59 % in homosexual men, 16 % by heterosexual contacts, 17 % in people from high prevalence countries and 7 % in i.v. drug users. In comparison to the international situation Germany has a relatively low HIV-prevalence even nowadays. However, Germany has also been confronted with an increasing number of newly diagnosed infections in the last few years. When the prevention program was started it was very important to build new structures for a successful implementation of the campaign. That meant for instance to build up an effective infrastructure for cooperation between the governmental and the nongovernmental sector, including organising the coordinated action among the partners at the federal, regional and local levels. Likewise, international networking was of great importance. A key element, relevant for the success of the campaign was the close cooperation at the federal level between the BZgA and the Deutsche AIDS Hilfe (German AIDS Help, DAH), to combine the highreach intervention in low-prevalence populations with intensive interventions for high prevalence groups. An effective national AIDS prevention campaign must reach the whole population; inform the public about the main risks of infection, about methods of protection and about what is not infectious. Moreover groups with a higher level of risk of

  17. Cruciferous Vegetables and Cancer Prevention

    Science.gov (United States)

    ... Chronic Inflammation Common Cancer Myths and Misconceptions Diet Hormones Immunosuppression Infectious Agents Obesity Radiation Sunlight Tobacco Genetics NCI Cancer Genetics Services Directory Cancer Prevention Overview Research Cruciferous Vegetables and Cancer Prevention On This Page What are ...

  18. Preventing Hantavirus Pulmonary Syndrome (HPS)

    Science.gov (United States)

    ... to Yosemite FAQ: Non-U.S. Visitors to Yosemite History of HPS Related Links Prevent Rodent Infestations Cleaning Up After Rodents Diseases From Rodent Prevention Recommend on Facebook Tweet Share Compartir Eliminate or minimize contact with ...

  19. Immunoglobulins for preventing hepatitis A

    DEFF Research Database (Denmark)

    Liu, Jian Ping; Nikolova, Dimitrinka; Fei, Yutong

    2009-01-01

    Hepatitis A (infectious hepatitis) is a common epidemic disease. Immunoglobulins for passive immunisation are used as prevention.......Hepatitis A (infectious hepatitis) is a common epidemic disease. Immunoglobulins for passive immunisation are used as prevention....

  20. Preventing and diagnosing dementia.

    Science.gov (United States)

    Keenan, Bernie; Jenkins, Catharine; Ginesi, Laura

    While dementia is an umbrella term for a range of degenerative brain disorders, many share similar presentations. Nurses are ideally placed to identify those at risk and empower them to access treatment and plan and prepare for their future needs--as such, they need up-to-date knowledge of the signs and symptoms of the different types of dementia to identify risk factors and make an informed diagnosis. This article, the third in a four-part series on dementia, examines the risk factors, signs, symptoms and diagnosis of dementia, as well as outlining lifestyle factors such as diet and exercise that may help to prevent the development of the condition.

  1. Global Hearing Loss Prevention.

    Science.gov (United States)

    Brown, Clifford Scott; Emmett, Susan D; Robler, Samantha Kleindienst; Tucci, Debara L

    2018-03-07

    Hearing loss is the fourth leading contributor to years lived with a disability worldwide. Most recent estimates indicate that one-half of a billion people suffer from disabling hearing loss worldwide. The social and economic burden is significant. When attributing monetary value to years lived with disability owing to hearing loss, there is greater than $US750 billion lost each year globally. There are numerous contributors to hearing loss, including congenital, infectious, noise exposure, age-related, traumatic, and immune-mediated causes. Understanding the pathophysiology of these factors allows for the development of preventative and treatment strategies specific to the underlying cause. Copyright © 2018 Elsevier Inc. All rights reserved.

  2. Preventing medical device recalls

    CERN Document Server

    Raheja, Dev

    2014-01-01

    Introduction to Medical Device RequirementsIntroductionThe ChallengesSources of ErrorsUnderstanding the Science of Safety     Overview of FDA Quality System Regulation     Overview of Risk Management Standard ISO 14971     Overview of FDA Device Approval Process     Overview of Regulatory Requirements for Clinical TrialsSummaryReferencesPreventing Recalls during Specification WritingIntroductionConduct Requirements Analysis to Identify Missing RequirementsSpecifications for Safety, Durability, and

  3. Selenium for preventing cancer

    Directory of Open Access Journals (Sweden)

    Gabriele Dennert

    Full Text Available BACKGROUND: Selenium is a trace element essential to humans. Higher selenium exposure and selenium supplements have been suggested to protect against several types of cancers. OBJECTIVE: Two research questions were addressed in this review: What is the evidence for: 1. an aetiological relationship between selenium exposure and cancer risk in women and men?; 2. the efficacy of selenium supplementation for cancer prevention in women and men? SEARCH STRATEGY: We searched electronic databases and bibliographies of reviews and included publications. SELECTION CRITERIA: We included prospective observational studies to answer research question (a and randomised controlled trials (RCTs to answer research question (b. DATA COLLECTION AND ANALYSIS: We conducted random effects meta-analyses of epidemiological data when five or more studies were retrieved for a specific outcome. We made a narrative summary of data from RCTs. MAIN RESULTS: We included 49 prospective observational studies and six RCTs. In epidemiologic data, we found a reduced cancer incidence (summary odds ratio, OR, 0.69; 95% confidence interval, CI, 0.53 to 0.91 and mortality (OR 0.55, 95% CI 0.36 to 0.83 with higher selenium exposure. Cancer risk was more pronouncedly reduced in men (incidence: OR 0.66, 95% CI 0.42 to 1.05 than in women (incidence: OR 0.90, 95% CI 0.45 to 1.77. These findings have potential limitations due to study design, quality and heterogeneity of the data, which complicated the interpretation of the summary statistics. The RCTs found no protective efficacy of selenium yeast supplementation against non-melanoma skin cancer or L-selenomethionine supplementation against prostate cancer. Study results for the prevention of liver cancer with selenium supplements were inconsistent and studies had an unclear risk of bias. The results of the Nutritional Prevention of Cancer Trial (NPCT and SELECT raised concerns about possible harmful effects of selenium supplements. AUTHORS

  4. Novel preventive treatment options

    DEFF Research Database (Denmark)

    Longbottom, C; Ekstrand, K; Zero, D

    2009-01-01

    to that point. These include: approximal sealants; fluoride applications, including slow-release devices; measures to help remineralize demineralized tissue, including 3 different methods of delivering amorphous calcium phosphate; measures to help modify the biofilm to reduce the cariogenic challenge, including...... of these techniques show considerable promise and dentists should be aware of these developments and follow their progress, the evidence for each of these novel preventive treatment options is currently insufficient to make widespread recommendations. Changes in dental practice should be explored to see how oral...

  5. Preventing the White Death

    DEFF Research Database (Denmark)

    Hansen, Casper Worm; Jensen, Peter S.; Madsen, Peter

    2017-01-01

    Tuberculosis (TB) is a leading cause of death worldwide and, while treatable by antibiotics since the 1940s, drug resistant strains have emerged. This paper estimates the effects of the establishment of a pre-antibiotic era public health institution, known as a TB dispensary, designed to prevent...... of the dispensaries on productivity as measured by annual income per taxpayer at the city level, digitized from historical tax-assessment records. Overall, the evidence highlights the provision of personalized information on infectious diseases as a cost-effective cause of the historical mortality decline....

  6. New perspective on injury prevention

    DEFF Research Database (Denmark)

    Ramskov, Daniel

    Scientific literature underpinning prevention of injuries in sport continues to grow. Preventive measures proven effective in experimental research is however, challenged by implementation issues and understanding contextual factors. A designed-based research approach treat the problem of context...... and involves a relationship between researchers and implementers. Perceiving research as a continuum, design-based research could complement experimental research. The adaption by athletes, coaches and physical therapists of designed preventive interventions is a prerequisite of successful injury prevention....

  7. The Science of Cancer Prevention

    Science.gov (United States)

    The science of cancer prevention is described by Dr. Barnett S. Kramer, M.D., M.P.H., director of the Division of Cancer Prevention, National Cancer Institute (NCI). The Division of Cancer Prevention administers a broad spectrum of research that spans basic pre-clinical, laboratory research, supportive and palliative care research, early detection, and randomized controlled clinical trials. The Division also supports the Cancer Prevention Fellowship Program and is devoted to the balanced communication of scientific results.

  8. Evaluation Methods for Prevention Education.

    Science.gov (United States)

    Blue, Amy V.; Barnette, J. Jackson; Ferguson, Kristi J.; Garr, David R.

    2000-01-01

    Discusses the importance of assessing medical students' competence in prevention knowledge, skills, and attitudes. Provides general guidance for programs interested in evaluating their prevention instructional efforts, and gives specific examples of possible methods for evaluating prevention education. Stresses the need to tailor assessment…

  9. INITIAL ALLERGY PREVENTION IN CHILDREN

    Directory of Open Access Journals (Sweden)

    A.N. Pampura

    2009-01-01

    Full Text Available Allergy prevention is an urgent pediatric issue. Food allergy spread among infants amounts to 6–8%. This review highlights the modern viewpoints on diet prevention of this pathology among children, including by means of the hypoallergic nutritional formulas.Key words: food allergy, prevention, allergies, prebiotics, children.

  10. Toward suicide prevention.

    Science.gov (United States)

    Rao, V A

    1999-10-01

    Suicide is an important mode of death. There are many psychiatrically ill patients in therapy running different degree of suicide risk. The risk of death by suicide is with almost all psychiatric illnesses, but it is found more with depressive disease, schizophrenia and personality disorder. Many studies have reported higher incidences of suicide attempts and suicide among alcoholics, which is often precipitated by family crises. Drug problems, low threshold for tolerance of day to day frustration, unemployement and poor parenting are major causes for youth suicide.There is biological evidence of suicidal behaviour. Fall in the level of serotonin and 5-HIAA in the CSF and in hind brain is found in subjects dying from suicide. Researchers have found decreased melatonin level in depression and suicide attempters. Long term therapy with antidepressants (Tricyclics), mood stabilizers (lithium and valproate) and new SSRIs prevent relapses and lessen suicide. It was concluded that general hospital doctors are in position of reducing suicide rates. Education of physician in detection of depression and suicide prevention will result in decline in number of suicides. The important measures include limiting the ability of methods of self-harm, antidepressants, paracetamol and insecticides.

  11. Lipids in preventive dentistry.

    Science.gov (United States)

    Kensche, A; Reich, M; Kümmerer, K; Hannig, M; Hannig, C

    2013-04-01

    There is still a great demand for the improvement of oral prophylaxis methods. One repeatedly described approach is rinsing with edible oils. The aim of the present review paper was to analyze the role of lipids in bioadhesion and preventive dentistry. Despite limited sound scientific data, extensive literature search was performed to illustrate possible effects of lipids in the oral cavity. It is to be assumed that lipophilic components modulate the process of bioadhesion to the oral hard tissues as well as the composition and ultrastructure of the initial oral biofilm or the pellicle, respectively. Thereby, lipids could add hydrophobic characteristics to the tooth surface hampering bacterial colonization and eventually decreasing caries susceptibility. Also, a lipid-enriched pellicle might be more resistant in case of acid exposure and could therefore reduce the erosive mineral loss. Furthermore, anti-inflammatory effects on the oral soft tissues were described. However, there is only limited evidence for these beneficial impacts. Neither the lipid composition of saliva and pellicle nor the interactions of lipids with the initial oral biofilm and the pellicle layer have been investigated adequately until now. Edible oils might qualify as mild supplements to conventional strategies for the prevention of caries, erosion, and periodontal diseases but further research is necessary. Against the background of current scientific and empirical knowledge, edible oils might be used as oral hygiene supplements but a decisive benefit for the oral health status is questionable.

  12. Exercise Prevents Mental Illness

    Science.gov (United States)

    Purnomo, K. I.; Doewes, M.; Giri, M. K. W.; Setiawan, K. H.; Wibowo, I. P. A.

    2017-03-01

    Multiple current studies show that neuroinflammation may contribute to mental illness such as depression, anxiety, and mood disorder. Chronic inflammation in peripheral tissues is indicated by the increase of inflammatory marker like cytokine IL-6, TNF-α, and IL-1β. Pro-inflammatory cytokine in peripheral tissues can reach brain tissues and activate microglia and it causes neuroinflammation. Psychological stress may led peripheral and central inflammation. Activated microglia will produce pro-inflammatory cytokine, ROS, RNS, and tryptophan catabolizes. This neuroinflammation can promote metabolism changes of any neurotransmitter, such as serotonin, dopamine, and glutamate that will influence neurocircuit in the brain including basal ganglia and anterior cingulated cortex. It leads to mental illness. Exercise give contribution to reduce tissue inflammation. When muscle is contracting in an exercise, muscle will produce the secretion of cytokine like IL-6, IL-1ra, and IL-10. It will react as anti-inflammation and influence macrophage, T cell, monosit, protein Toll-Like Receptor (TLR), and then reduce neuroinflammation, characterised by the decrease of pro-inflammatory cytokine and prevent the activation of microglia in the brain. The objective of the present study is to review scientific articles in the literature related to the contribution of exercise to prevent and ease mental illness.

  13. Initiatives for proliferation prevention

    International Nuclear Information System (INIS)

    1997-04-01

    Preventing the proliferation of weapons of mass destruction is a central part of US national security policy. A principal instrument of the Department of Energy's (DOE's) program for securing weapons of mass destruction technology and expertise and removing incentives for scientists, engineers and technicians in the newly independent states (NIS) of the former Soviet Union to go to rogue countries or assist terrorist groups is the Initiatives for Proliferation Prevention (IPP). IPP was initiated pursuant to the 1994 Foreign Operations Appropriations Act. IPP is a nonproliferation program with a commercialization strategy. IPP seeks to enhance US national security and to achieve nonproliferation objectives by engaging scientists, engineers and technicians from former NIS weapons institutes; redirecting their activities in cooperatively-developed, commercially viable non-weapons related projects. These projects lead to commercial and economic benefits for both the NIS and the US IPP projects are funded in Russian, Ukraine, Kazakhstan and Belarus. This booklet offers an overview of the IPP program as well as a sampling of some of the projects which are currently underway

  14. Cholera - management and prevention.

    Science.gov (United States)

    Davies, Hannah G; Bowman, Conor; Luby, Stephen P

    2017-06-01

    Cholera is an acute secretory diarrhoeal infection caused by the bacterium Vibrio cholerae. It is likely to have originated in the Indian sub-continent; however, it spread to cause six worldwide pandemics between 1817-1923. The ongoing seventh worldwide pandemic of cholera began in 1961. The intensity, duration and severity of cholera epidemics have been increasing, signaling the need for more effective control and prevention measures. The response to the cholera pandemics of the 19th century led to the development of safe and effective sanitation and water systems which have effectively removed the risk of cholera in many settings. However, such systems are not in place to protect billions of people worldwide. Although some progress has been made in expanding access to water in recent years, achieving optimal infrastructure will, in the most optimistic scenario, take decades. Climate change, extreme weather events and rapid urbanisation suggests that alternatives to the current paradigm of providing large centralised water and sanitation systems should be considered, including smaller decentralised systems. The aim of this review paper is to provide an overview of current knowledge regarding management of cholera with a focus on prevention measures including vaccination and water and sanitation interventions. © 2017 The British Infection Association. Published by Elsevier Ltd. All rights reserved.

  15. Pressure ulcer prevention.

    Science.gov (United States)

    Edlich, Richard F; Winters, Kathryne L; Woodard, Charles R; Buschbacher, Ralph M; Long, William B; Gebhart, Jocelynn H; Ma, Eva K

    2004-01-01

    The purpose of this collective review is to outline the predisposing factors in the development of pressure ulcers and to identify a pressure ulcer prevention program. The most frequent sites for pressure ulcers are areas of skin overlying bony prominences. There are four critical factors contributing to the development of pressure ulcers: pressure, shearing forces, friction, and moisture. Pressure is now viewed as the single most important etiologic factor in pressure ulcer formation. Prolonged immobilization, sensory deficit, circulatory disturbances, and poor nutrition have been identified as important risk factors in the development of pressure ulcer formation. Among the clinical assessment scales available, only two, the Braden Scale and Norton Scale, have been tested extensively for reliability and/or validity. The most commonly used risk assessment tools for pressure ulcer formation are computerized pressure monitoring and measurement of laser Doppler skin blood flow. Pressure ulcers can predispose the patient to a variety of complications that include bacteremia, osteomyelitis, squamous cell carcinoma, and sinus tracts. The three components of pressure ulcer prevention that must be considered in any patient include management of incontinence, nutritional support, and pressure relief. The pressure relief program must be individualized for non-weight-bearing individuals as well as those that can bear weight. For those that can not bear weight and passively stand, the RENAISSANCE Mattress Replacement System is recommended for the immobile patient who lies supine on the bed, the stretcher, or operating room table. This alternating pressure system is unique because it has three separate cells that are not interconnected. It is specifically designed so that deflation of each individual cell will reach a ZERO PRESSURE during each alternating pressure cycle. The superiority of this system has been documented by comprehensive clinical studies in which this system

  16. Pressure Ulcer Prevention

    Science.gov (United States)

    2009-01-01

    Executive Summary In April 2008, the Medical Advisory Secretariat began an evidence-based review of the literature concerning pressure ulcers. Please visit the Medical Advisory Secretariat Web site, http://www.health.gov.on.ca/english/providers/program/mas/tech/tech_mn.html to review these titles that are currently available within the Pressure Ulcers series. Pressure ulcer prevention: an evidence based analysis The cost-effectiveness of prevention strategies for pressure ulcers in long-term care homes in Ontario: projections of the Ontario Pressure Ulcer Model (field evaluation) Management of chronic pressure ulcers: an evidence-based analysis (anticipated pubicstion date - mid-2009) Purpose A pressure ulcer, also known as a pressure sore, decubitus ulcer, or bedsore, is defined as a localized injury to the skin/and or underlying tissue occurring most often over a bony prominence and caused by pressure, shear, or friction, alone or in combination. (1) Those at risk for developing pressure ulcers include the elderly and critically ill as well as persons with neurological impairments and those who suffer conditions associated with immobility. Pressure ulcers are graded or staged with a 4-point classification system denoting severity. Stage I represents the beginnings of a pressure ulcer and stage IV, the severest grade, consists of full thickness tissue loss with exposed bone, tendon, and or muscle. (1) In a 2004 survey of Canadian health care settings, Woodbury and Houghton (2) estimated that the prevalence of pressure ulcers at a stage 1 or greater in Ontario ranged between 13.1% and 53% with nonacute health care settings having the highest prevalence rate (Table 1). Executive Summary Table 1: Prevalence of Pressure Ulcers* Setting Canadian Prevalence,% (95% CI) Ontario Prevalence,Range % (n) Acute care 25 (23.8–26.3) 23.9–29.7 (3418) Nonacute care† 30 (29.3–31.4) 30.0–53.3 (1165) Community care 15 (13.4–16.8) 13.2 (91) Mixed health care‡ 22 (20.9

  17. Xylitol and caries prevention.

    Science.gov (United States)

    Duane, Brett

    2015-06-01

    Cochrane Oral Health Group Trials Register, the Cochrane Central Register of Controlled Trials (CENTRAL), Medline, Embase, CINAHL, Web of Science Conference Proceedings, Proquest Dissertations and Theses, US National Institutes of Health Trials Register (http://clinicaltrials.gov) and the WHO Clinical Trials Registry Platform for ongoing trials. No language or year restrictions were used. Randomised controlled trials assessing the effects of xylitol products on dental caries in children and adults. Two review authors independently screened the results of the electronic searches, extracted data and assessed the risk of bias of the included studies. Authors were contacted where possible for missing data or clarification where feasible. For continuous outcomes, means and standard deviations were used to obtain the mean difference and 95% confidence interval (CI). Continuous data was used to calculate prevented fractions (PF) and 95% CIs to summarise the percentage reduction in caries. For dichotomous outcomes, reported risk ratios (RR) and 95% CIs were used. As there were fewer than four studies included in the meta-analysis, a fixed effect model was used. Ten studies were included with a total of 5903 participants. One study was assessed as being at low risk of bias, two were assessed as unclear risk of bias with seven at high risk of bias. Over 2.5–3 years, low quality evidence demonstrated that with 4216 children analysed, a fluoride toothpaste with 10% xylitol (exact dosage unsure) reduced caries by 13% when compared to a fluoride only toothpaste. (PF −0.13, 95% CI −0.18 to −0.08. Remaining evidence of the use of xylitol in children has risk of bias and uncertainty of effect and was therefore insufficient to determine a benefit from xylitol. Four studies reported that there were no adverse effects from any of the interventions. Two studies reported similar rates of adverse effects between study arms. The remaining studies either mentioned adverse effects

  18. Preventing undernutrition in Cambodia

    DEFF Research Database (Denmark)

    Skau, Jutta Kloppenborg Heick

    The first 1000 days (from conception to 24 months) of a child’s life are critical for long-term mental and physical development. This period is clearly marked as the optimal period of preventing malnutrition and named the “window of opportunity”. The first phase of complementary feeding (about 6......-12 months) is the most critical. This is the transitional phase when solid foods gradually start to replace breast milk. The typical diet of complementary food in low-income countries is dominated by a single starch-rich staple, with little vegetables and fruits and few or no animal source foods (ASF...... technique. Linear regression was used to assess the association of sex, breastfeeding, stunting and wasting as correlates of fat-free mass index (FFMI), fat mass index (FMI) and body mass index (BMI). This study showed that boys had a higher FFMI at 6 and 15 months of age. Stunted infants aged 6 months had...

  19. Primary Prevention With Statins

    DEFF Research Database (Denmark)

    Mortensen, Martin B; Afzal, Shoaib; Nordestgaard, Børge G

    2015-01-01

    BACKGROUND: Guidelines recommend initiating primary prevention for atherosclerotic cardiovascular disease (ASCVD) with statins based on absolute ASCVD risk assessment. Recently, alternative trial-based and hybrid approaches were suggested for statin treatment eligibility. OBJECTIVES: This study...... the population studied, 42% were eligible for statin therapy according to the 2013 American College of Cardiology/American Heart Association (ACC/AHA) risk assessment and cholesterol treatment guidelines approach, versus 56% with the trial-based approach and 21% with the hybrid approach. Among these statin......-eligible subjects, the ASCVD event rate per 1,000 person-years was 9.8, 6.8, and 11.2, respectively. The ACC/AHA-recommended absolute risk score was well calibrated around the 7.5% 10-year ASCVD risk treatment threshold and discriminated better than the trial-based or hybrid approaches. Compared with the ACC...

  20. Preventing Informal Urban Development

    DEFF Research Database (Denmark)

    Enemark, Stig; McLaren, Robin

    2008-01-01

    . This is directly linked to citizen participation in the process of land use control. Decentralisation should aim to combine responsibility for decision making with accountability for financial, social, and environmental consequences. Decentralisation requires access to appropriate quality of land information......, addresses the main issue of how to prevent informal urban development, especially through the use of adequate and sustainable means of land use control and good governance. Three key means are addressed: Decentralisation: There is a need to separate central policy/regulation making and local decision making......The issue of informal development was discussed in details at the joint FIG Com 3 and UNECE/WPLA workshop in Sounio, Greece, March 2007. Emphasis was given to the scale of the problem in Southern and Eastern Europe and to means of legalising such informal urban development. This paper, instead...

  1. [Cellulite - causes, prevention, treatment ].

    Science.gov (United States)

    Janda, Katarzyna; Tomikowska, Anna

    2014-01-01

    Cellulite is a multifactorial etiology ailment. It changes the skin topography by the formation of the skin surface's appearance, changes described as "orange peel". This prob- lem concerns 85-98% of women, and for them it is one of the most intolerable aesthetic imperfections. In the past few years the interest of scientists in this problem has clearly increased. Several theories on the pathophysiology of cel- lulite have been produced A number of different thera- peutic regimens have been developed using modern tech- nology. However, despite the many treatment options for cellulite, it is extremely important that patients should be aware that only multidirectional treatment can bring sat- isfactory results. The aim of this review was to describe the causes of cellulite, and its prevention and treatment.

  2. Crime prevention and Education

    DEFF Research Database (Denmark)

    Brønsted, Lone Bæk

    of such a preventive work aiming at creating trustful relations between the school and the children and focusing on children’s democracy understandings, experienced discrimination and peer pressure. Furthermore, the school are to activate children’s reflections on existential questions and their empathy with others...... social and cultural categorizations that marks what is legitimate and illegitimate behavior (Øland 2007, 2012; Bourdieu and Passeron 2006). The school as an institution plays a significant role in these studies and include studies of working class boys meeting with the school's middle and upper class...... standards (Willis 1977) and bilingual pupils' meeting with 'Danishness' through the teachers’ Danish middle class values (Gilliam 2009). The studies mark the school as an actor in societal social and cultural conflicts and are all concerned with differentiation and marginalization processes. Therefore...

  3. Health promotion, primary prevention and secondary prevention in general practice

    OpenAIRE

    Karl, Tatjana

    2013-01-01

    The WHO´s aims regarding healthcare for the European region are mainly based on health promotion and preventive as well as supporting health education. The Ottawa Charta declares health promotion as a process to provide all people with a higher degree of self-determination regarding their health and thereby enabling them to increase it. General practitioners are of major importance regarding the medical area of behaviour oriented prevention by promoting health and acting preventive. ...

  4. Preventing Child Sexual Abuse Early

    Directory of Open Access Journals (Sweden)

    Wenjing Zhang

    2015-02-01

    Full Text Available This study is aimed to examine preschool teachers’ knowledge of, attitudes about, and training related to child sexual abuse (CSA prevention in Beijing, China. Two hundred and forty-five preschool teachers were administered the 16-item questionnaire that contained questions on CSA prevention knowledge, attitudes, and teacher training. Results showed that Chinese preschool teachers had limited knowledge on CSA prevention (M = 4.86, SD = 2.12. Less than 5% of the teachers ever attended CSA prevention training programs. Preschool teachers’ training on CSA prevention was the significant factor for their knowledge and attitudes. To help protect children against sexual abuse, there is an urgent need to develop appropriate prevention training programs for preschool teachers in China.

  5. Politics of prevention: The emergence of prevention science.

    Science.gov (United States)

    Roumeliotis, Filip

    2015-08-01

    This article critically examines the political dimension of prevention science by asking how it constructs the problems for which prevention is seen as the solution and how it enables the monitoring and control of these problems. It also seeks to examine how prevention science has established a sphere for legitimate political deliberation and which kinds of statements are accepted as legitimate within this sphere. The material consists of 14 publications describing and discussing the goals, concepts, promises and problems of prevention science. The analysis covers the period from 1993 to 2012. The analysis shows that prevention science has established a narrow definition of "prevention", including only interventions aimed at the reduction of risks for clinical disorders. In publications from the U.S. National Institute of Drug Abuse, the principles of prevention science have enabled a commitment to a zero-tolerance policy on drugs. The drug using subject has been constructed as a rational choice actor lacking in skills in exerting self-control in regard to drug use. Prevention science has also enabled the monitoring and control of expertise, risk groups and individuals through specific forms of data gathering. Through the juxtaposition of the concepts of "objectivity" and "morality", prevention science has constituted a principle of delineation, disqualifying statements not adhering to the principles of prevention science from the political field, rendering ethical and conflictual dimensions of problem representations invisible. The valorisation of scientific accounts of drugs has acted to naturalise specific political ideals. It simultaneously marginalises the public from the public policy process, giving precedence to experts who are able to provide information that policy-makers are demanding. Alternative accounts, such as those based on marginalisation, poverty or discrimination are silenced within prevention science. Copyright © 2015 Elsevier B.V. All rights

  6. PREVENTION OF OCCUPATIONAL ACCIDENTS

    Directory of Open Access Journals (Sweden)

    Jovica Jovanovic

    2004-01-01

    Full Text Available Medical services, physicians and nurses play an essential role in the plant safety program through primary treatment of injured workers and by helping to identify workplace hazards. The physician and nurse should participate in the worksite investigations to identify specific hazard or stresses potentially causing the occupational accidents and injuries and in planning the subsequent hazard control program. Physicians and nurses must work closely and cooperatively with supervisors to ensure the prompt reporting and treatment of all work related health and safety problems. Occupational accidents, work related injuries and fatalities result from multiple causes, affect different segments of the working population, and occur in a myriad of occupations and industrial settings. Multiple factors and risks contribute to traumatic injuries, such as hazardous exposures, workplace and process design, work organization and environment, economics, and other social factors. With such a diversity of theories, it will not be difficult to understand that there does not exist one single theory that is considered right or correct and is universally accepted. These theories are nonetheless necessary, but not sufficient, for developing a frame of reference for understanding accident occurrences. Prevention strategies are also varied, and multiple strategies may be applicable to many settings, including engineering controls, protective equipment and technologies, management commitment to and investment in safety, regulatory controls, and education and training. Research needs are thus broad, and the development and application of interventions involve many disciplines and organizations.

  7. Selenium for preventing cancer

    Science.gov (United States)

    Vinceti, Marco; Dennert, Gabriele; Crespi, Catherine M; Zwahlen, Marcel; Brinkman, Maree; Zeegers, Maurice PA; Horneber, Markus; D'Amico, Roberto; Del Giovane, Cinzia

    2015-01-01

    Background This review is an update of the first Cochrane publication on selenium for preventing cancer (Dennert 2011). Selenium is a metalloid with both nutritional and toxicological properties. Higher selenium exposure and selenium supplements have been suggested to protect against several types of cancers. Objectives Two research questions were addressed in this review: What is the evidence for: an aetiological relation between selenium exposure and cancer risk in humans? andthe efficacy of selenium supplementation for cancer prevention in humans? Search methods We conducted electronic searches of the Cochrane Central Register of Controlled Trials (CENTRAL, 2013, Issue 1), MEDLINE (Ovid, 1966 to February 2013 week 1), EMBASE (1980 to 2013 week 6), CancerLit (February 2004) and CCMed (February 2011). As MEDLINE now includes the journals indexed in CancerLit, no further searches were conducted in this database after 2004. Selection criteria We included prospective observational studies (cohort studies including sub-cohort controlled studies and nested case-control studies) and randomised controlled trials (RCTs) with healthy adult participants (18 years of age and older). Data collection and analysis For observational studies, we conducted random effects meta-analyses when five or more studies were retrieved for a specific outcome. For RCTs, we performed random effects meta-analyses when two or more studies were available. The risk of bias in observational studies was assessed using forms adapted from the Newcastle-Ottawa Quality Assessment Scale for cohort and case-control studies; the criteria specified in the Cochrane Handbook for Systematic Reviews of Interventions were used to evaluate the risk of bias in RCTs. Main results We included 55 prospective observational studies (including more than 1,100,000 participants) and eight RCTs (with a total of 44,743 participants). For the observational studies, we found lower cancer incidence (summary odds ratio (OR) 0

  8. Prevention of nuclear war

    International Nuclear Information System (INIS)

    Lifton, R.J.

    1980-01-01

    Physicians are exercising their responsibility as healers in their efforts to prevent nuclear war. Death for Hiroshima survivors was experienced in four stages: the immediate impact of destruction, the acute impact of radiation, delayed radiation effects, and later identification as an atomic bomb survivor. Each phase had its physical and psychological impacts and negates Hiroshima as a model for rational behavior despite those who claim survival is possible for those who are prepared. The psychic effects of modern nuclear, chemical, and germ warfare need to be challenged with a symbolization of life and immortality. Studies of psychological reactions to the terror children felt during practice air-raid drills indicate that the fears can be surpressed and re-emerge in adult life as a linking of death with collective annihilation. Other themes which emerge are feelings of impermanence, craziness, identification with the bomb, and a double existence. Psychic numbing and the religion of nuclearism cause dangerous conflicts with the anxieties caused by increasing awareness of death

  9. Trying to prevent abortion.

    Science.gov (United States)

    Bromham, D R; Oloto, E J

    1997-06-01

    It is known that, since antiquity, women confronted with an unwanted pregnancy have used abortion as a means of resolving their dilemma. Although undoubtedly widely used in all historical ages, abortion has come to be regarded as an event preferably avoided because of the impact on the women concerned as well as considerations for fetal life. Policies to reduce numbers and rates of abortion must acknowledge certain observations. Criminalization does not prevent abortion but increases maternal risks. A society's 'openness' in discussing sexual matters inversely correlates with abortion rates. Correlation between contraceptive use and abortion is also inverse but relates most closely to the efficacy of contraceptive methods used. 'Revolution' in the range of contraceptive methods used will have an equivalent impact on abortion rates. Secondary or emergency contraceptive methods have a considerable role to play in the reduction of abortion numbers. Good sex (and 'relationships') education programs may delay sexual debut, increase contraceptive usage and be associated with reduced abortion. Finally, interaction between socioeconomic factors and the choice between abortion and ongoing pregnancy are complex. Abortion is not necessarily chosen by those least able to support a child financially.

  10. Workplace harassment prevention in Finland

    OpenAIRE

    Lorek, Angelika

    2015-01-01

    The proposed research concerns the engagement of companies operating in Finland in prevention of workplace harassment. The main target of the thesis is to understand the importance of the prevention of workplace harassment in the work environment. Research analyses what measures companies take in order to prevent workplace harassment and how is it monitored. As a primary research, interview findings of four Finnish companies (“Company X”, DHL Finland, ISS Palvelut and Management Institute...

  11. Pollution prevention: A regulatory update

    International Nuclear Information System (INIS)

    Walzer, A.E.; Maynard, J.W.

    1993-01-01

    Pollution prevention is the emphasis of the 1990s environmental philosophy. This new environmental era was ushered in when President Bush signed the Pollution Prevention Act in October 1990. This law, with its accompanying philosophy, was in response to the realization that end-of-the-pipe treatment, which frequently changed the media in which a pollutant or waste was discharged, was inadequate to protect the environment and human health. Pollution prevention advocates source reduction, where material substitutions and engineering solutions are sought to reduce the volume and toxicity of waste and pollutants. This proactive approach reduces environmental impacts such as those of former waste sites which have produced environmental legacies that will cost billions of dollars and take decades to remediate. This paper describes pollution prevention philosophy and summarizes regulatory pollution prevention requirements. It describes current regulatory trends in the area of pollution prevention, including voluntary programs and enforcement actions. The Pollution Prevention Act of 1990 is described, and pollution prevention initiatives embodied in other laws, including the Clean Air Act, the Clean Water Act, the Emergency Planning and Community Right-To-Know Act, the Resource Conservation and Recovery Act, and the Toxic Substances Control Act, are discussed. A historical overview of waste minimization initiatives within the Department of Energy is given, and other pollution prevention initiatives that affect federal facilities, such as Executive Order 12780, which mandates recycling and the procurement of recycled materials, are also outlined

  12. Municipal water pollution prevention program

    International Nuclear Information System (INIS)

    1991-03-01

    EPA believes that the most effective and equitable means of assuring viability of this infrastructure is through environmentally preferred pollution prevention approaches especially through application of Municipal Water Pollution Prevention (MWPP). These approaches may enhance worker safety, improve the usability of sludge, increase the ability for local community expansion, and reduce operation and compliance costs. State-based municipal pollution prevention programs focus attention on a series of actions to prevent pollution in advance rather than taking more expensive corrective actions. MWPP encourages resource conservation to reduce water and energy use, appropriate pricing, toxicity reductions at the source, BOD reductions, recycling, proper treatment of wastes, and beneficial uses of sludge

  13. Nutrition and Cancer Prevention Research Practicum | Division of Cancer Prevention

    Science.gov (United States)

    The Nutritional Science Research Group in the Division of Cancer Prevention at the National Cancer Institute, National Institutes of Health and the Department of Nutrition at the Clinical Center, National Institutes of Health are offering a one week educational opportunity in "Nutrition and Cancer Prevention Research" for individuals with a sustained commitment to nutrition

  14. Prevention of Methamphetamine Abuse: Can Existing Evidence Inform Community Prevention?

    Science.gov (United States)

    Birckmayer, Johanna; Fisher, Deborah A.; Holder, Harold D.; Yacoubian, George S.

    2008-01-01

    Little research exists on effective strategies to prevent methamphetamine production, distribution, sales, use, and harm. As a result, prevention practitioners (especially at the local level) have little guidance in selecting potentially effective strategies. This article presents a general causal model of methamphetamine use and harms that…

  15. Crucial elements in suicide prevention strategies

    DEFF Research Database (Denmark)

    Nordentoft, Merete

    2011-01-01

    Ways of conceptualizing suicide prevention are reviewed briefly, and the preventive model: Universal, Selected, and Indicated prevention (USI) is chosen as the structure for the literature review, and the discussion. Universal preventive interventions are directed toward entire population; select...

  16. Selenium for preventing cancer.

    Science.gov (United States)

    Vinceti, Marco; Filippini, Tommaso; Del Giovane, Cinzia; Dennert, Gabriele; Zwahlen, Marcel; Brinkman, Maree; Zeegers, Maurice Pa; Horneber, Markus; D'Amico, Roberto; Crespi, Catherine M

    2018-01-29

    This review is the third update of the Cochrane review "Selenium for preventing cancer". Selenium is a naturally occurring element with both nutritional and toxicological properties. Higher selenium exposure and selenium supplements have been suggested to protect against several types of cancer. To gather and present evidence needed to address two research questions:1. What is the aetiological relationship between selenium exposure and cancer risk in humans?2. Describe the efficacy of selenium supplementation for cancer prevention in humans. We updated electronic searches of the Cochrane Central Register of Controlled Trials (CENTRAL; 2017, Issue 2), MEDLINE (Ovid, 2013 to January 2017, week 4), and Embase (2013 to 2017, week 6), as well as searches of clinical trial registries. We included randomised controlled trials (RCTs) and longitudinal observational studies that enrolled adult participants. We performed random-effects (RE) meta-analyses when two or more RCTs were available for a specific outcome. We conducted RE meta-analyses when five or more observational studies were available for a specific outcome. We assessed risk of bias in RCTs and in observational studies using Cochrane's risk assessment tool and the Newcastle-Ottawa Scale, respectively. We considered in the primary analysis data pooled from RCTs with low risk of bias. We assessed the certainty of evidence by using the GRADE approach. We included 83 studies in this updated review: two additional RCTs (10 in total) and a few additional trial reports for previously included studies. RCTs involved 27,232 participants allocated to either selenium supplements or placebo. For analyses of RCTs with low risk of bias, the summary risk ratio (RR) for any cancer incidence was 1.01 (95% confidence interval (CI) 0.93 to 1.10; 3 studies, 19,475 participants; high-certainty evidence). The RR for estimated cancer mortality was 1.02 (95% CI 0.80 to 1.30; 1 study, 17,444 participants). For the most frequently

  17. Postpartum haemorrhage: prevention.

    Science.gov (United States)

    Chelmow, David

    2011-04-04

    Loss of more than 500 mL of blood following childbirth is usually caused by failure of the uterus to contract fully after delivery of the placenta, and occurs in over 10% of deliveries, with a 1% mortality rate worldwide. Other causes of postpartum haemorrhage include retained placental tissue, lacerations to the genital tract, and coagulation disorders. Uterine atony is more likely in women who have had a general anaesthetic or oxytocin, an over-distended uterus, a prolonged or precipitous labour, or who are of high parity. We conducted a systematic review and aimed to answer the following clinical questions: What are the effects of non-drug interventions and of drug interventions to prevent primary postpartum haemorrhage? We searched: Medline, Embase, The Cochrane Library, and other important databases up to March 2010 (Clinical Evidence reviews are updated periodically; please check our website for the most up-to-date version of this review). We included harms alerts from relevant organisations such as the US Food and Drug Administration (FDA) and the UK Medicines and Healthcare products Regulatory Agency (MHRA). We found 40 systematic reviews, RCTs, or observational studies that met our inclusion criteria. We performed a GRADE evaluation of the quality of evidence for interventions. In this systematic review we present information relating to the effectiveness and safety of the following interventions: active management of the third stage of labour, carboprost injection, controlled cord traction, ergot compounds (ergometrine/methylergotamine), immediate breastfeeding, misoprostol (oral, rectal, sublingual, or vaginal), oxytocin, oxytocin plus ergometrine combinations, prostaglandin E2 compounds, and uterine massage.

  18. Drug Education & Prevention. Chapter 9.

    Science.gov (United States)

    Acampora, Alfonso P., Ed.; Nebelkopf, Ethan, Ed.

    This document contains seven papers from the ninth World Conference of Therapeutic Communities (TCs) that deal with drug education and prevention. Papers include: (1) "State of the Art of Drug Prevention Programs: A Five Year Retrospective of School Curricula" (Natalie Silverstein, et al.); (2) "TCs: Education for Wholeness"…

  19. Get Real about Diabetes Prevention

    Centers for Disease Control (CDC) Podcasts

    2007-11-01

    This podcast delivers a diabetes prevention message promoting small steps that can lead to big rewards.  Created: 11/1/2007 by National Diabetes Education Program (NDEP), a joint program of the Centers for Disease Control and Prevention and the National Institutes of Health.   Date Released: 11/15/2007.

  20. Disaster: Prevention, Preparedness and Action.

    Science.gov (United States)

    Buchanan, Sally

    1981-01-01

    Discission of threat of disaster to library archival materials focuses on prevention (building maintenance, materials storage, fire prevention), preparedness (preplanning, procedures for handling emergencies, finances of recovery operation), and action (instructions for handling damaged materials). Current library activities in disaster planning…

  1. Can atopic dermatitis be prevented?

    Science.gov (United States)

    Gómez-de la Fuente, E

    2015-05-01

    Atopic dermatitis has become a health problem in our setting due to its rising prevalence, impact on quality of life, associated costs, and role in the progression to other atopic diseases. Furthermore, atopic dermatitis has no definitive cure and therefore preventive measures are important. In this article, we review the latest advances in both primary prevention (reduction of the incidence of atopic dermatitis) and secondary prevention (reduction of associated morbidity and reduction of the atopic march). We analyze the different preventive strategies available, including modification of the immune system through microbial exposure, induction of immune tolerance through antigen exposure, and restoration of skin barrier function to halt the atopic march. Dermatologists need to be familiar with these strategies in order to apply them where necessary and to accurately inform patients and their relatives to prevent misguided or inappropriate actions. Copyright © 2014 Elsevier España, S.L.U. and AEDV. All rights reserved.

  2. Pharmacological prevention of relapse.

    Science.gov (United States)

    Lader, M

    1998-07-01

    Relapse is the "return of a disease after partial recovery", and is a major feature of schizophrenia disorder. It can be defined in terms of need for change in treatment, including rehospitalization or crisis intervention, the re-emergence of florid psychotic features, or gross social decompensation. Relapse is best viewed as continuum of severity rather than as discrete "attacks". Factors influencing relapse include major life events and the family constellation. Antipsychotic drugs protect against the latter but not the former, and relapse may be mediated by non-specific arousal mechanisms. The efficacy of drug treatment in postponing rather than preventing relapse is well established. The interval between relapses is prolonged at least two-fold, but in the long run most patients relapse. Unwanted effects of antipsychotic drugs can be a burden to patients, impairing quality of life. In particular, movement disorders and subjective dysphoria may be marked, as may compliance. Of these EPS, tardive dyskinesia is the most serious on long term use. Non-EPS long term effects include weight gain and endocrine changes. Depot medication has advantages over oral medication in the more ill, less compliant patients. Side effects may, however, be more marked. The greatest pain is in improved compliance but the regular supervision of the patient is also helpful. Pharmacokinetic issues are poorly understood. High and mega-dose strategies have been advocated. High doses may be needed in some patients, but megadoses are rarely justified and may be hazardous. Low dose and intermittent therapy have been evaluated but are not as successful as hoped. Some less ill patients may benefit. These schedules depend on the identification of prodromata of relapse which is not always easy, nor are relapses necessarily preceded by prodromata. Newer drugs are being developed rapidly in the search for a safer clozapine, the only antipsychotic with definitely enhanced efficacy. Other drugs which

  3. Fraud prevention in paying portal

    Science.gov (United States)

    Sandhu, P. S.; Senthilkumar, N. C.

    2017-11-01

    The purpose of presenting this paper is to give the idea to prevent the fraud in finance paying portals as fraud is increasing on daily basis and mostly in financial sector. So through this paper we are trying to prevent the fraud. This paper will give you the working algorithm through which you can able to prevent the fraud. Algorithm will work according to the spending amount of the user, which means that use will get categories into one of the low, medium, high or very high category.

  4. [Prevention of pressure ulcer (bedsore)].

    Science.gov (United States)

    Sedmak, Dijana; Vrhovec, Marina; Huljev, Dubravko

    2013-10-01

    Although progress in many fields of science, medicine and technology is evident, we are still witnessing the appearance of bedsores and its consequences. However, in the last fifty years there has been considerable progress in the understanding of its causes, prevention and treatment. Prevention and treatment of pressure ulcers are complicated by the many misconceptions. However, with due knowledge of the process of healing of acute and chronic wounds and of the pathophysiological processes, in many cases chronic wounds, like pressure ulcers, can now be prevented and cured, and thus reduce the cost of treatment, as well as the mortality rate.

  5. Injury Prevention in Youth Sports.

    Science.gov (United States)

    Stracciolini, Andrea; Sugimoto, Dai; Howell, David R

    2017-03-01

    Children and adolescents are now participating in competitive sports at younger ages and with increasing intensity. As a result, increasing numbers of young athletes are presenting to pediatricians for care of sports-related injuries and advice about prevention. Understanding and identifying modifiable risk factors for injury in the young athletic population is a critical first step in injury prevention. Risk factors vary by sport, age, and sex. This article reviews the most common risk factors for injury and the evidence to support proposed strategies for prevention. [Pediatr Ann. 2017;46(3):e99-e105.]. Copyright 2017, SLACK Incorporated.

  6. Pollution prevention and air quality

    International Nuclear Information System (INIS)

    Fuentes Hector; Tsihrintzis Vassilios

    1997-01-01

    Pollution prevention (P2) results from the combined effect of the public opinion, a new environmental value system, government regulation, but above all, the search for an economic development within the context of environmental protection. The reasons for prevention are fundamental: profit from a new economic frontier; reduced potential for civil and criminal liability; and the effective and economic protection of the environment. This paper addresses, among other relevant issues, the following topics: justification and objective of pollution prevention; strategy and methodology for its implementation; examples of successes and tools; benefits and barriers and some recommendation

  7. Exercises to help prevent falls

    Science.gov (United States)

    ... slowly and easily. DO NOT hold your breath. Balance Exercises You can do some balance exercises during ... fall prevention in the elderly: what about agility? Sports Med . 2016;46:143-149. PMID: 26395115 www. ...

  8. Glossary of Suicide Prevention Terms

    Science.gov (United States)

    ... public through various media such as radio, television, advertisements, newspapers, magazines, and billboards. Public Health Approach – the ... used for an injury that is unplanned; in many settings these are termed accidental injuries. Universal preventive ...

  9. Preventing Breast Cancer: Making Progress

    Science.gov (United States)

    ... Home Current Issue Past Issues Preventing Breast Cancer: Making Progress Past Issues / Fall 2006 Table of Contents ... the time a woman is taking the pills, notes Leslie Ford, M.D., associate director for NCI's ...

  10. Preventative maintenance program for bridges.

    Science.gov (United States)

    2015-07-01

    The Kentucky Transportation Cabinets (KYTC) bridge inventory is rapidly aging. As such, the Cabinet : needs to identify and implement relevant preventative maintenance (PM) actions to extend the useful : service lives of those structures. Maintena...

  11. Preventive maintenance study : interim report.

    Science.gov (United States)

    2017-09-01

    This interim report details the performance of 69 test sites treated with various preventive maintenance treatments. The maintenance treatments applied included crack sealing, full lane chip sealing, wheel path chip sealing, dig outs (mill and fill),...

  12. Body Lice Prevention and Control

    Science.gov (United States)

    ... Frequently Asked Questions (FAQs) Epidemiology & Risk Factors Disease Biology Diagnosis Treatment Prevention & Control Resources for Health Professionals Publications Get Email Updates To receive email updates about this page, enter ...

  13. Ethical aspects of obesity prevention.

    Science.gov (United States)

    Ten Have, Marieke

    2014-04-01

    Programs to prevent overweight and obesity are needed in order to improve individual and public health, to support informed choice and to diminish the societal costs associated with overweight. However, lifestyle interventions frequently evoke ethical debate. The potential ethical pitfalls that arise with respect to the prevention of overweight regard consequences for physical health, psychosocial well-being, equality, informed choice, social and cultural values, privacy, the attributions of responsibilities and liberty. For doctors in gastroenterology, it is important to be aware of these ethical pitfalls, either because they apply directly to questions in the consulting-room, or because they help to create awareness of the societal context a patient lives in. An ethical framework is being presented to show which ethical issues play a role in obesity prevention and how they can be prevented, followed by reflection on the ethical issues in interventions and in policy and media debate. Copyright © 2014 Elsevier Ltd. All rights reserved.

  14. Prevent Injury After a Disaster

    Science.gov (United States)

    ... Preventing Violence Pressure Washer Safety Trench Foot or Immersion Foot Emergency Wound Care Wound Management for Healthcare ... as hard hat, safety glasses, hearing protection, heavy work gloves, and cut-resistant legwear. Avoid contact with ...

  15. Allergy and asthma prevention 2014

    DEFF Research Database (Denmark)

    Nieto, Antonio; Wahn, Ulrich; Bufe, Albrecht

    2014-01-01

    in high-risk infants reduces the incidence of atopic dermatitis, while there is for now not enough evidence to recommend other dietary modifications, pre-biotics, probiotics, or other microbial products. Pharmacologic agents used until now for prevention have not proved useful, while there is hope......Asthma and allergic diseases have become one of the epidemics of the 21st century in developed countries. Much of the success of other areas of medicine, such as infectious diseases, lies on preventive measures. Thus, much effort is also being placed lately in the prevention of asthma and allergy....... This manuscript reviews the current evidence, divided into four areas of activity. Interventions modifying environmental exposure to allergens have provided inconsistent results, with multifaceted interventions being more effective in the prevention of asthma. Regarding nutrition, the use of hydrolyzed formulas...

  16. Can we prevent road rage?

    Science.gov (United States)

    Asbridge, Mark; Smart, Reginald G; Mann, Robert E

    2006-04-01

    Road rage has become a serious concern in many countries, and preventive efforts are required. This article reviews what can be done to prevent road rage by exploring potential prevention avenues in five areas. First, legal changes aimed at increasing the penalties for road rage behavior could be instituted, drawing on models from aggressive-driving or impaired-driving laws. A second approach would involve the adoption of court programs for convicted road ragers. Third, car redesign offers a means of reducing crime through environmental design. Fourth, mass media education could be implemented to inform drivers of the risk from road rage and how to avoid situations that facilitate road rage. Finally, prevention efforts could be directed to long-term societal changes that emphasize structural modifications, such as reducing congestion on the roads, reduced driver stress, or promoting public transportation. The strengths and weaknesses of these strategies are discussed.

  17. Conflict Prevention and Resolution Center

    Science.gov (United States)

    The Conflict Prevention and Resolution Center is EPA's primary resource for services and expertise in the areas of consensus-building, collaborative problem solving, alternative dispute resolution, and environmental collaboration and conflict resolution.

  18. Treating and Preventing Sports Hernias

    Science.gov (United States)

    ... Close ‹ Back to Healthy Living Treating and Preventing Sports Hernias If you play ice hockey, tennis or ... for the most commonly misdiagnosed groin pain—a sports hernia. A sports hernia often results from overuse ...

  19. Preventing hepatitis B or C

    Science.gov (United States)

    ... ency/patientinstructions/000401.htm Preventing hepatitis B or C To use the sharing features on this page, please enable JavaScript. Hepatitis B and hepatitis C infections cause irritation and swelling of the liver. ...

  20. Clinical Cancer Genetics and Prevention

    Science.gov (United States)

    Olufunmilayo F. Olopade MD, FACP, Professor of Medicine and Human Genetics and Director of the Cancer Risk Clinic Department of Medicine, BSD Section of Hematology/Oncology University of Chicago, presented "Clinical Cancer Genetics and Prevention".

  1. Genetics, Disease Prevention and Treatment

    Science.gov (United States)

    Skip to main content FAQ About Genetics, Disease Prevention and Treatment Enter Search Term(s): Español Research Funding An Overview Bioinformatics Current Grants Education and Training Funding Extramural Research News ...

  2. Preventing Ticks on Your Pets

    Science.gov (United States)

    ... Fipronil Pyrethroids (permethrin, etc.) Amitraz Repel Ticks on Dogs A repellent product may prevent the tick from coming into contact with an animal at all or have anti-feeding effects once the tick comes into contact with ...

  3. Gravidomimetic Prevention of Breast Cancer

    National Research Council Canada - National Science Library

    Andersen, Thomas

    2002-01-01

    To test the hypothesis that a novel synthetic peptide can prevent breast cancer, we utilized a standard model to induce breast cancer in rats and initiated a dose-finding study in which four log doses...

  4. Tips to Prevent Tick Bites

    Science.gov (United States)

    Using the right insect repellent and other preventive actions can discourage ticks, mosquitoes, and other biting insects from landing on you. Tips include avoiding tick habitats and minimizing exposed skin.

  5. Tips to Prevent Mosquito Bites

    Science.gov (United States)

    Using the right insect repellent and other preventive actions can discourage mosquitoes from landing on you. Tips include removing mosquito habitats such as standing water, minimizing exposed skin, and staying indoors while mosquitoes are most active.

  6. [Prevention levels in occupational nursing].

    Science.gov (United States)

    Nogueira, Maria Jacyra de Campos

    1982-12-01

    The autor, based in nursing functions concepts of HENDERSON and of HORTA, and in the prevention levels of LEAVELL & CLARK, write about the of the occupational health nursing personnel in Brasil and describes their actions and activities.

  7. Noise and Hearing Loss Prevention

    Science.gov (United States)

    ... message, please visit this page: About CDC.gov . NOISE AND HEARING LOSS PREVENTION Language: English (US) Español ( ... when hazardous noise levels cannot be adequately reduced. Noise and Hearing Loss on the NIOSH Science Blog ...

  8. Lessons from obesity prevention for the prevention of mental disorders: the primordial prevention approach.

    Science.gov (United States)

    Hayward, Joshua; Jacka, Felice N; Waters, Elizabeth; Allender, Steven

    2014-09-10

    Emerging evidence supports a relationship between risk factors for obesity and the genesis of the common mental disorders, depression and anxiety. This suggests common mental disorders should be considered as a form of non-communicable disease, preventable through the modification of lifestyle behaviours, particularly diet and physical activity. Obesity prevention research since the 1970's represents a considerable body of knowledge regarding strategies to modify diet and physical activity and so there may be clear lessons from obesity prevention that apply to the prevention of mental disorders. For obesity, as for common mental disorders, adolescence represents a key period of vulnerability. In this paper we briefly discuss relationships between modifiable lifestyle risk factors and mental health, lifestyle risk factor interventions in obesity prevention research, the current state of mental health prevention, and the implications of current applications of systems thinking in obesity prevention research for lifestyle interventions. We propose a potential focus for future mental health promotion interventions and emphasise the importance of lessons available from other lifestyle modification intervention programmes.

  9. Bullying Prevention for the Public

    Centers for Disease Control (CDC) Podcasts

    2012-01-19

    This is the first podcast of a series to discuss the severity of bullying and provide resources for prevention efforts. CDC shares the most recent statistics and trends, provides valuable tips to implement in communities, and teaches individuals how to take action against bullying.  Created: 1/19/2012 by National Center for Injury Prevention and Control (NCIPC).   Date Released: 1/19/2012.

  10. Skin contamination - prevention and decontaminating

    International Nuclear Information System (INIS)

    Henning, K.

    2001-01-01

    A detailed examination is made of the structure of human skin. Measures were drawn up to prevent skin contamination in nuclear installations as well as contaminated skin was decontaminated from the personnel. By systematically applying these measures a significant level of success was achieved in preventing contamination in nuclear installations. Cases where more far-reaching chemical methods had to be used were kept to a minimum. (R.P.)

  11. Preventive strategies for substance use

    Directory of Open Access Journals (Sweden)

    Anju Dhawan

    2017-01-01

    Full Text Available Drug use among adolescents is on the rise, posing a great challenge to the health-care providers. The above concerns have led to recent research initiatives aiming at the development of preventive interventions for adolescents. This review gives an overview of such initiatives which target at reducing modifiable risk factors and enhancing protective factors through family, school, and community prevention programs.

  12. Prevention of Infection in Pregnancy

    Directory of Open Access Journals (Sweden)

    William J. Ledger

    1997-01-01

    Full Text Available We believe the prevention of infection-related adverse pregnancy outcome is the most important focus for obstetricians today. An emphasis upon immunization of susceptible women, prevention of transmissible disease by modification of patient behavior, and identification and treatment of silent infections should become standards of practice. This will require educational initiatives for physicians and their patients as well as continued clinical trials to determine costs and effectiveness.

  13. Musculoskeletal Health and Injury Prevention

    Science.gov (United States)

    2008-07-01

    involving the lateral ankle . • Ankle sprains represent 21 to 53% and 17 to 29% of all basketball and soccer injuries respectively. • Ankle sprains...Musculoskeletal Health and Injury Prevention Francis G. O’Connor, MD, MPH Patricia A. Deuster, PhD, MPH Department of Military and Emergency...DATES COVERED - 4. TITLE AND SUBTITLE Musculoskeletal Health and Injury Prevention 5a. CONTRACT NUMBER 5b. GRANT NUMBER 5c. PROGRAM ELEMENT

  14. Prevention of diseases after menopause.

    Science.gov (United States)

    Lobo, R A; Davis, S R; De Villiers, T J; Gompel, A; Henderson, V W; Hodis, H N; Lumsden, M A; Mack, W J; Shapiro, S; Baber, R J

    2014-10-01

    Women may expect to spend more than a third of their lives after menopause. Beginning in the sixth decade, many chronic diseases will begin to emerge, which will affect both the quality and quantity of a woman's life. Thus, the onset of menopause heralds an opportunity for prevention strategies to improve the quality of life and enhance longevity. Obesity, metabolic syndrome and diabetes, cardiovascular disease, osteoporosis and osteoarthritis, cognitive decline, dementia and depression, and cancer are the major diseases of concern. Prevention strategies at menopause have to begin with screening and careful assessment for risk factors, which should also include molecular and genetic diagnostics, as these become available. Identification of certain risks will then allow directed therapy. Evidence-based prevention for the diseases noted above include lifestyle management, cessation of smoking, curtailing excessive alcohol consumption, a healthy diet and moderate exercise, as well as mentally stimulating activities. Although the most recent publications from the follow-up studies of the Women's Health Initiative do not recommend menopause hormonal therapy as a prevention strategy, these conclusions may not be fully valid for midlife women, on the basis of the existing data. For healthy women aged 50-59 years, estrogen therapy decreases coronary heart disease and all-cause mortality; this interpretation is entirely consistent with results from other randomized, controlled trials and observational studies. Thus. as part of a comprehensive strategy to prevent chronic disease after menopause, menopausal hormone therapy, particularly estrogen therapy may be considered as part of the armamentarium.

  15. Prevention strategies in child maltreatment.

    Science.gov (United States)

    Scribano, Philip V

    2010-10-01

    Child maltreatment remains a prevalent problem for which notable best practices such as home visitation can be effective; however, most eligible families do not receive these beneficial services. Additionally, there are other promising prevention interventions to effectively address child maltreatment. This review focuses on the recent advances and strategies for child maltreatment prevention. Although home visiting does not have a single clearly defined methodology of providing service to children and families, the general supportive framework to improve maternal, child, and family factors makes this intervention the most widely studied and accepted prevention strategy. However, there has been limited effectiveness for most models. The Nurse-Family Partnership (NFP) has provided consistently positive results by targeting families with many risk factors by using highly trained professionals when implementing a research-based intervention. A promising public health approach to parent training (Triple P) may reduce maltreatment and out-of-home placement. Parent-child interaction therapy (PCIT), while a treatment model, is becoming an increasingly important approach to child maltreatment prevention. There may be an opportunity to reduce child maltreatment by enhancing care in the pediatric medical home setting. Effective child maltreatment prevention efforts exist; however, not all programs provide the same effectiveness, or target the same maltreatment issues. Pediatricians are in a key position to offer support to families in their own practice, as well as to direct families to the appropriate resources available.

  16. Pressure ulcer prevention and management.

    Science.gov (United States)

    Lyder, Courtney H

    2002-01-01

    This chapter reviews 218 published and unpublished research reports of pressure ulcer prevention and management by nurse researchers and researchers from other disciplines. The electronic databases MEDLINE (1966-July 2001), CINAHL (1982-June 2001), AMED (1985-July 2001), and EI Compedex Plus (1980-June 2001) were selected for the searches because of their focus on health and applied research. Moreover, evaluations of previous review articles and seminal studies that were published before 1966 are also included. Research conducted worldwide and published in English between 1930 and 2001 was included for review. Studies using descriptive, correlational, longitudinal, and randomized control trials were included. This review found that numerous gaps remain in our understanding of effective pressure ulcer prevention and management. Moreover, the majority of pressure ulcer care is derived from expert opinion rather than empirical evidence. Thus, additional research is needed to investigate pressure ulcer risk factors of ethnic minorities. Further studies are needed that examine the impact of specific preventive interventions (e.g., turning intervals based on risk stratification) and the cost-effectiveness of comprehensive prevention programs to prevent pressure ulcers. Finally, an evaluation is needed of various aspects of pressure ulcer management (e.g., use of support surfaces, use of adjunctive therapies) and healing of pressure ulcers.

  17. Fall Prevention in Apprentice Carpenters

    Science.gov (United States)

    Kaskutas, Vicki; Dale, Ann Marie; Lipscomb, Hester; Gaal, John; Fuchs, Mark; Evanoff, Bradley; Faucette, Julia; Gillen, Marion; Deych, Elena

    2013-01-01

    Objectives Falls from heights are a leading cause of mortality and morbidity in the construction industry, especially among inexperienced workers. We surveyed apprentice carpenters to identify individual and organizational factors associated with falls from heights. Methods We developed a 72-item fall prevention survey with multiple domains including fall experience, fall prevention knowledge, risk perceptions, confidence in ability to prevent falls, training experience, and perceptions of the safety climate and crew safety behaviors. We administered the questionnaire to apprentice carpenters in this cross-sectional study. Results Of the 1,025 respondents, 51% knew someone who had fallen from height at work and 16% had personally fallen in the past year, with ladders accounting for most of the falls. Despite participation in school-based and on-the-job training, fall prevention knowledge was poor. Ladders were perceived as low risk and ladder training was rare. Apprentices reported high levels of unsafe fall-related behaviors on their work crews. Apprentices working residential construction were more likely to fall than those working commercial construction, as were apprentices working on crews with fewer senior carpenters to provide mentorship, and those reporting more unsafe behaviors among fellow workers. Conclusions Despite participation in a formal apprenticeship program, many apprentices work at heights without adequate preparation and subsequently experience falls. Apprenticeship programs can improve the timing and content of fall prevention training. This study suggests that organizational changes in building practices, mentorship, and safety culture must also occur in order to decrease worker falls from heights. PMID:19953214

  18. The Money Laundering Prevention System

    Directory of Open Access Journals (Sweden)

    Sonja Cindori

    2007-03-01

    Full Text Available The paper presents the money laundering and terrorist financing prevention system in Croatia. The basic concepts are defined, the principles and fundamentals of international regulations analysed, and the regulatory system in Croatia covered by statute and money laundering prevention Regulations is presented, in conjunction with a description of the organisation, remit and international actions of the Money Laundering Prevention Office.The infiltration of dirty money is a crucial problem from national economies. The purchase of shares, of real estate, the establishment of dirty investment funds and the use of the banking system for the embedding of such resources is a danger to the credibility of a whole country, and in particular to the security of the financial and banking system. Croatia has adopted statutory measures aimed at the effective detection and prevention of suspicious financial transactions, in other words the prevention of money laundering.Launderers constantly find new ways, make use of new non-financial channels and expand their activities to real estate, artworks and insurance. Hence it is necessary to keep up with European approaches and recommendations, to strive for further improvement of the laws and the modernisation of the system, and to adopt new regulations harmonised with international standards, particularly with Directive 2005/60/EC.

  19. Prevention vs. treatment: what's the right balance?

    National Research Council Canada - National Science Library

    Faust, Halley S; Menzel, Paul T

    2012-01-01

    .... This book explores this observation by examining the actual spending on prevention, the history of health policies and structural features that affect prevention's apparent relative lack of emphasis...

  20. Preventing pollution from plutonium processing

    International Nuclear Information System (INIS)

    Pillay, K.K.S.

    1993-01-01

    The plutonium processing facility at Los Alamos has adopted the strategic goal of becoming a facility that processes plutonium in a way that produces only environmentally benign waste streams. Pollution prevention through source reduction and environmentally sound recycling are being pursued. General approaches to waste reductions are administrative controls, modification of process technologies, and additional waste polishing. Recycling of waste materials, such as spent acids and salts, are technical possibilities and are being pursued to accomplish additional waste reduction. Liquid waste stream polishing to remove final traces of plutonium and hazardous chemical constituents is accomplished through (a) process modifications, (b) use of alternative chemicals and sorbents for residue removal, (c) acid recycling, and (d) judicious use of a variety of waste polishing technologies. Technologies that show promise in waste minimization and pollution prevention are identified. Working toward this goal of pollution prevention is a worthwhile endeavor, not only for Los Alamos, but for the Nuclear Complex of the future

  1. Preventing pollution from plutonium processing

    International Nuclear Information System (INIS)

    Pillay, K.K.S.

    1995-01-01

    The plutonium processing facility at Los Alamos has adopted the strategic goal of becoming a facility that processes plutonium in a way that produces only environmentally benign waste streams. Pollution prevention through source reduction and environmentally sound recycling are being pursued. General approaches to waste reductions are administrative controls, modification of process technologies, and additional waste polishing. Recycling of waste materials, such as spent acids and salts, are technical possibilities and are being pursued to accomplish additional waste reduction. Liquid waste stream polishing to remove final traces of plutonium and hazardous chemical constituents is accomplished through process modifications, use of alternative chemicals and sorbents for residue removal, acid recycling, and judicious use of a variety of waste polishing technologies. Technologies that show promise in waste minimization and pollution prevention are identified. Working toward this goal of pollution prevention is a worthwhile endeavor , not only for Los Alamos, but for the Nuclear Complex of the future. (author) 12 refs.; 2 figs

  2. Prevention of unintentional childhood injury.

    Science.gov (United States)

    Theurer, Wesley M; Bhavsar, Amit K

    2013-04-01

    Unintentional injury accounts for 40 percent of childhood deaths annually, most commonly from motor vehicle crashes. The proper use of child restraints is the most effective strategy to prevent injury or death. Motor vehicle restraint guidelines have recently been revised to an age-based system that delays the progression in type of restraint for most children. Strategies to prevent suffocation in children include using appropriate bedding, positioning babies on their backs to sleep, and removing items from the sleep and play environment that could potentially entrap or entangle the child. Fencing that isolates a swimming pool from the yard and surrounding area and "touch" adult supervision (i.e., an adult is in the water and able to reach and grab a child) have been shown to be most effective in preventing drownings. Swimming lessons are recommended for children older than four years. Poison prevention programs have been shown to improve prevention behavior among caregivers, but may not decrease poisoning incidence. Syrup of ipecac is not recommended. Smoke detector maintenance, a home escape plan, and educating children about how to respond during a fire emergency are effective strategies for preventing fire injuries or death. Fall injuries may be reduced by not using walkers for infants and toddlers or bunk beds for children six years and younger. Consistent helmet use while bicycling reduces head and brain injuries. Although direct counseling by physicians appears to improve some parental safety behaviors, its effect on reducing childhood injuries is uncertain. Community-based interventions can be effective in high-risk populations.

  3. Preventing childhood obesity: what works?

    Science.gov (United States)

    Birch, L L; Ventura, A K

    2009-04-01

    Rates of overweight in North American children and adolescents have increased dramatically since the 1970s. Childhood obesity has reached epidemic proportions and calls for prevention and treatment programs to reverse this trend have been made. However, the evidence base needed for effective action is still incomplete, especially for childhood obesity prevention programs. This paper focuses on primary prevention of childhood obesity and has three aims: (1) to briefly describe current primary prevention approaches for childhood obesity and the evidence for their impact; (2) to elucidate promising, but untested intervention strategies using an ecological framework and evidence from experimental and epidemiological research on factors influencing children's eating and weight status; and (3) to introduce a multiphase strategy for screening intervention components and building and evaluating potent interventions for childhood obesity. Most childhood obesity prevention programs have focused on school-aged children and have had little success. We suggest that, given these findings, prevention efforts should be expanded to explore other contexts in which children live as possible settings for intervention efforts, including the family and childcare settings. Given that 25% of preschool children are already overweight, intervening with children before school entry should be a priority. A review of experimental research on the developing controls of food intake in infancy and childhood suggests possible intervention strategies, focusing on parenting and aspects of the feeding environment. Epidemiological findings point to even earlier modifiable risk factors, including gestational weight gain, maternal prepregnancy weight, and formula feeding. However, the potential impact of altering these risk factors remains to be evaluated. In response to this problem, we suggest a new, multiphase method for accomplishing this, including screening intervention components, refining

  4. Health promotion and prevention strategies.

    Science.gov (United States)

    Bradbury-Golas, Kathleen

    2013-09-01

    Opiate dependency is a medical disorder that requires treatment intervention. Primary health care not only entails treatment of illness but also involves disease prevention and health promotion. Based on Pender's revised Health Promotion Model, a descriptive study comparing the health promoting behaviors/practices in abusing and recovering opiate-dependent drug users is analyzed. Using the Health Promoting Lifestyle Profile II, a comparative descriptive, exploratory, nonexperimental design study was conducted to identify key health-promoting behaviors in recovering opiate-dependent drug users. Prevention strategy recommendations are discussed, along with future research recommendations. Copyright © 2013 Elsevier Inc. All rights reserved.

  5. Preventing urinary incontinence in women.

    Science.gov (United States)

    Newman, Diane K; Cardozo, Linda; Sievert, Karl-Dietrich

    2013-10-01

    This review examines the evidence to date, analyzes specific risk factors and assesses the ability to prevent urinary incontinence in women, while providing clinical recommendations. More extraordinary risk factors such as ethnicity and race, mixed and fecal incontinence, iatrogenic and neurogenic factors should be discussed in a follow-up report. Studies have revealed that certain factors place women at risk for developing urinary incontinence, including age, obesity, diabetes, pregnancy and delivery, high-impact physical exercise factors and estrogen deficiency. Healthcare providers should screen women who are at risk for developing urinary incontinence and institute specific interventions, specifically behavioral and even rehabilitative techniques, to prevent this prevalent and distressing condition.

  6. Recognizing and Preventing Whooping Cough

    Centers for Disease Control (CDC) Podcasts

    2015-01-22

    This podcast provides information about the symptoms of whooping cough and how vaccines can help prevent this serious disease for people of all ages. It is especially important for those who will have close contact with a baby to be up to date with their whooping cough vaccine.  Created: 1/22/2015 by National Center for Immunization and Respiratory Diseases (NCIRD), Division of Bacterial Diseases (DBD), Meningitis and Vaccine Preventable Diseases Branch (MVPDB).   Date Released: 1/22/2015.

  7. FOOD ALLERGY PREVENTION IN INFANCY

    Directory of Open Access Journals (Sweden)

    S.G. Makarova

    2006-01-01

    Full Text Available The article deals with new data about food tolerance induction among the children, belonging to the high risk groups disposed to atopy. Authors show the role of gut microflora in formation of child immune system, effect of breast feeding on activation of local immune response, growth stimulation of bifid bacteria and lactic acid bacilli. The present work gives the randomized research findings, which confirm the effectiveness of prolonged breast feeding, use of highly or partially hydrolyzed mixtures and timely introduction of supplemental feeding in food allergy prevention.Key words: prevention, food allergy, children, breast feeding, hypo allergic mixtures, milk protein hydrolysates, supplemental feeding, gut microflora, probiotics.

  8. Preventing crime through selective incapacitation

    NARCIS (Netherlands)

    Vollaard, B.A.

    Making the length of a prison sentence conditional upon an individual’s offence history is shown to be a powerful way of preventing crime. Under a law adopted in the Netherlands in 2001, prolific offenders could be sentenced to a prison term that was approximately 10 times longer than usual. We

  9. Intimate Partner Violence. Prevention Update

    Science.gov (United States)

    Higher Education Center for Alcohol, Drug Abuse, and Violence Prevention, 2011

    2011-01-01

    The Centers for Disease Control and Prevention (CDC) defines intimate partner violence (IPV) as violence between two people in a close relationship, including current and former spouses and dating partners. IPV occurs on a continuum from a single episode to ongoing battering and can include physical violence, sexual violence, threats, emotional…

  10. Pollution prevention program implementation plan

    International Nuclear Information System (INIS)

    Engel, J.A.

    1996-09-01

    The Pollution Prevention Program Implementation Plan (the Plan) describes the Pacific Northwest National Laboratory's (PNNL) Pollution Prevention (P2) Program. The Plan also shows how the P2 Program at PNNL will be in support of and in compliance with the Hanford Site Waste Minimization and Pollution Prevention (WMin/P2) Awareness Program Plan and the Hanford Site Guide for Preparing and Maintaining Generator Group Pollution Prevention Program Documentation. In addition, this plan describes how PNNL will demonstrate compliance with various legal and policy requirements for P2. This plan documents the strategy for implementing the PNNL P2 Program. The scope of the P2 Program includes implementing and helping to implement P2 activities at PNNL. These activities will be implemented according to the Environmental Protection Agency's (EPA) hierarchy of source reduction, recycling, treatment, and disposal. The PNNL P2 Program covers all wastes generated at the Laboratory. These include hazardous waste, low-level radioactive waste, radioactive mixed waste, radioactive liquid waste system waste, polychlorinated biphenyl waste, transuranic waste, and sanitary waste generated by activities at PNNL. Materials, resource, and energy conservation are also within the scope of the PNNL P2 Program

  11. Asphalt rutting and its prevention

    CSIR Research Space (South Africa)

    Verhaeghe, Benoit MJA

    2007-09-01

    Full Text Available The paper seeks to redress the concerns expressed at the eight Conference on Asphalt pavements for Southern Africa (CAPSA) that the design of hot-mix asphalt did not adequately address prevention of rutting. It presents a consolidation of best...

  12. Preventing Stroke Deaths PSA (:60)

    Centers for Disease Control (CDC) Podcasts

    2017-09-06

    This 60 second public service announcement is based on the July 2017 CDC Vital Signs report. Higher opioid prescribing puts patients at risk for addiction and overdose. Learn what can be done about this serious problem.  Created: 9/6/2017 by Centers for Disease Control and Prevention (CDC).   Date Released: 9/6/2017.

  13. Crime Prevention through Environmental Design

    Science.gov (United States)

    Draper, Rick; Cadzow, Emma

    2004-01-01

    Applying CPTED (Crime Prevention Through Environmental Design) strategies to schools can significantly contribute to a safer learning environment by influencing the behaviour of students and visitors. CPTED has three overlapping primary concepts that are intended to reduce opportunities for crime as well as fear of crime: access control,…

  14. Childhood Obesity: Prediction and Prevention.

    Science.gov (United States)

    Miller, Michael D.

    Obesity in children is a problem both insidious and acute. Childhood obesity has been indicated as a forerunner of adult obesity; it is also an immediate problem for the child. Given the lack of evidence for long term maintenance of any weight loss, this paper investigates the etiology of the disorder as a prelude to prevention. Upon review of the…

  15. Cancer Prevention Research in China.

    Science.gov (United States)

    Yu, Siwang; Yang, Chung S; Li, Junyao; You, Weicheng; Chen, Jianguo; Cao, Ya; Dong, Zigang; Qiao, Youlin

    2015-08-01

    Although cancer incidence and mortality rates in the United States and some European countries have started to decrease, those in developing countries are increasing. China, the most populous developing country, is facing a serious challenge from cancer. Cancer incidence has been increasing for decades, and cancer is the leading cause of death in China. In 2012, the cancer incidence was 174.0 per 100,000, and the cancer mortality was 122.2 per 100,000 in China. In addition to the still-prevalent traditional Chinese cancers of the stomach, liver, esophagus, cervix, and nasopharynx, the incidence of "Western" cancers such those of the lung, breast, and colorectum has increased alarmingly in recent years. These increases are likely due to the lifestyle and environmental changes associated with rapid economic development and population aging. More importantly, a large portion of these cancers are preventable. Researchers in China have made important contributions to cancer prevention research, especially in the traditional Chinese cancers. More cancer prevention research and measures, especially on the major emerging cancers, are urgently needed. This review article highlights some of the past achievements and present needs in cancer prevention research in China and suggests important areas for future studies. ©2015 American Association for Cancer Research.

  16. Preventing Child Abuse and Neglect

    Science.gov (United States)

    ... Federal and national organizations and State contacts that work to prevent child abuse. Promoting child & family well-being Information on ... awareness & creating supportive communities Tools for sharing a child abuse ... research on what works, information on the role of related professionals, and ...

  17. EDITORIAL PREVENTABLE CAUSES OF BLINDNESS

    African Journals Online (AJOL)

    Damary

    2006-04-01

    Apr 1, 2006 ... eye changes improve markedly on treatment with diethylcarbamazine. Xerophthalmia is the leading ... for children of this land, and the recent severe food shortages are not helping matters either. Vitamin A ... from this cause is not rare but obviously preventable. Leprosy is a disease caused by the acid fast ...

  18. PREVENTION OF ALLERGIES IN CHILDREN

    Directory of Open Access Journals (Sweden)

    E. A. Vishneva

    2014-01-01

    Full Text Available The article is dedicated to the issue of preventing allergies in children. Increase in the spread of allergic diseases among children and adolescents remains one of the most significant medical and social issues and constitutes a heavy burden for healthcare budgets of many countries around the world. The Federal clinical recommendations must become modern guidelines for practicing clinicians everywhere; these are modern regulatory documents – protocols of medical care rendering to children with various allergic manifestations. The authors substantiate complex approach to the therapy of allergic diseases and determine the role of preventive measures and elimination of trigger effects. The authors traditionally distinguish between primary, secondary and tertiary measures and demonstrate their orientation. They consider the issue of preventing respiratory infections, which often constitute a factor of exacerbation of chronic allergic processes and are one of the frequent causative agents of allergic inflammation. The optimal preventive effect and maximum reduction in the incidence rate of respiratory infections may be achieved by combining vaccination and immune pharmacotherapy. 

  19. Understanding and Preventing Toddler Biting.

    Science.gov (United States)

    Garcia, Veronica

    1999-01-01

    Discusses the problem of toddler biting behavior in child care settings. Describes reasons for biting by toddlers, recommends caregiver responses to toddler biting, presents tips for observing children to identify the biter's patterns, and outlines ways to prevent biting in child care settings. (KB)

  20. Preventing Playground Injuries and Litigation.

    Science.gov (United States)

    Frost, Joe L.

    1994-01-01

    The typical American playground is antiquated, hazardous, and inappropriate for the developmental needs of children. The paper explains how design, installation, maintenance, and supervision are critical in preventing playground injuries and resulting litigation, noting the importance of regular training for everyone who supervises children on the…

  1. Falls prevention for the elderly

    Directory of Open Access Journals (Sweden)

    Dagmar Lühmann

    2012-04-01

    Full Text Available Background: An ageing population, a growing prevalence of chronic diseases and limited financial resources for health care underpin the importance of prevention of disabling health disorders and care dependency in the elderly. A wide variety of measures is generally available for the prevention of falls and fall-related injuries. The spectrum ranges from diagnostic procedures for identifying individuals at risk of falling to complex interventions for the removal or reduction of identified risk factors. However, the clinical and economic effectiveness of the majority of recommended strategies for fall prevention is unclear. Against this background, the literature analyses in this HTA report aim to support decision-making for effective and efficient fall prevention.Research questions: The pivotal research question addresses the effectiveness of single interventions and complex programmes for the prevention of falls and fall-related injuries. The target population are the elderly (> 60 years, living in their own housing or in long term care facilities. Further research questions refer to the cost-effectiveness of fall prevention measures, and their ethical, social and legal implications. Methods: Systematic literature searches were performed in 31 databases covering the publication period from January 2003 to January 2010. While the effectiveness of interventions is solely assessed on the basis of randomised controlled trials (RCT, the assessment of the effectiveness of diagnostic procedures also considers prospective accuracy studies. In order to clarify social, ethical and legal aspects all studies deemed relevant with regard to content were taken into consideration, irrespective of their study design. Study selection and critical appraisal were conducted by two independent assessors. Due to clinical heterogeneity of the studies no meta-analyses were performed.Results: Out of 12,000 references retrieved by literature searches, 184 meet the

  2. Postpartum haemorrhage: prevention and treatment.

    Science.gov (United States)

    Sentilhes, Loïc; Merlot, Benjamin; Madar, Hugo; Sztark, François; Brun, Stéphanie; Deneux-Tharaux, Catherine

    2016-11-01

    Postpartum hemorrhage (PPH) is one of the leading causes of maternal death and severe maternal morbidity worldwide and strategies to prevent and treat PPH vary among international authorities. Areas covered: This review seeks to provide a global overview of PPH (incidence, causes, risk factors), prevention (active management of the third stage of labor and prohemostatic agents), treatment (first, second and third-line measures to control PPH), by also underlining recommendations elaborated by international authorities and using algorithms. Expert commentary: When available, oxytocin is considered the drug of first choice for both prevention and treatment of PPH, while peripartum hysterectomy remains the ultimate life-saving procedure if pharmacological and resuscitation measures fail. Nevertheless, the level of evidence for preventing and treating PPH is globally low. The emergency nature of PPH makes randomized controlled trials (RCT) logistically difficult. Population-based observational studies should be encouraged as they can usefully strengthen the evidence base, particularly for components of PPH treatment that are difficult or impossible to assess through RCT.

  3. Diet for Kidney Stone Prevention

    Science.gov (United States)

    ... I eat or drink? Drinking enough liquid, mainly water, is the most important thing you can do to prevent kidney stones. Unless you have kidney failure , many health care professionals recommend that you drink six to eight, 8-ounce glasses a day. Talk with a health care professional about how ...

  4. Falls prevention for the elderly.

    Science.gov (United States)

    Balzer, Katrin; Bremer, Martina; Schramm, Susanne; Lühmann, Dagmar; Raspe, Heiner

    2012-01-01

    An ageing population, a growing prevalence of chronic diseases and limited financial resources for health care underpin the importance of prevention of disabling health disorders and care dependency in the elderly. A wide variety of measures is generally available for the prevention of falls and fall-related injuries. The spectrum ranges from diagnostic procedures for identifying individuals at risk of falling to complex interventions for the removal or reduction of identified risk factors. However, the clinical and economic effectiveness of the majority of recommended strategies for fall prevention is unclear. Against this background, the literature analyses in this HTA report aim to support decision-making for effective and efficient fall prevention. The pivotal research question addresses the effectiveness of single interventions and complex programmes for the prevention of falls and fall-related injuries. The target population are the elderly (> 60 years), living in their own housing or in long term care facilities. Further research questions refer to the cost-effectiveness of fall prevention measures, and their ethical, social and legal implications. Systematic literature searches were performed in 31 databases covering the publication period from January 2003 to January 2010. While the effectiveness of interventions is solely assessed on the basis of randomised controlled trials (RCT), the assessment of the effectiveness of diagnostic procedures also considers prospective accuracy studies. In order to clarify social, ethical and legal aspects all studies deemed relevant with regard to content were taken into consideration, irrespective of their study design. Study selection and critical appraisal were conducted by two independent assessors. Due to clinical heterogeneity of the studies no meta-analyses were performed. Out of 12,000 references retrieved by literature searches, 184 meet the inclusion criteria. However, to a variable degree the validity of their

  5. Hippocampal Sclerosis: Causes and Prevention.

    Science.gov (United States)

    Walker, Matthew Charles

    2015-06-01

    Hippocampal sclerosis is the commonest cause of drug-resistant epilepsy in adults, and is associated with alterations to structures and networks beyond the hippocampus.In addition to being a cause of epilepsy, the hippocampus is vulnerable to damage from seizure activity. In particular, prolonged seizures (status epilepticus) can result in hippocampal sclerosis. The hippocampus is also vulnerable to other insults including traumatic brain injury, and inflammation. Hippocampal sclerosis can occur in association with other brain lesions; the prevailing view is that it is probably a secondary consequence. In such instances, successful surgical treatment usually involves the resection of both the lesion and the involved hippocampus. Experimental data have pointed to numerous neuroprotective strategies to prevent hippocampal sclerosis. Initial neuroprotective strategies aimed at glutamate receptors may be effective, but later, metabolic pathways, apoptosis, reactive oxygen species, and inflammation are involved, perhaps necessitating the use of interventions aimed at multiple targets. Some of the therapies that we use to treat status epilepticus may neuroprotect. However, prevention of neuronal death does not necessarily prevent the later development of epilepsy or cognitive deficits. Perhaps, the most important intervention is the early, aggressive treatment of seizure activity, and the prevention of prolonged seizures. Thieme Medical Publishers 333 Seventh Avenue, New York, NY 10001, USA.

  6. Childhood obesity, prevalence and prevention

    Directory of Open Access Journals (Sweden)

    Merchant Anwar T

    2005-09-01

    Full Text Available Abstract Childhood obesity has reached epidemic levels in developed countries. Twenty five percent of children in the US are overweight and 11% are obese. Overweight and obesity in childhood are known to have significant impact on both physical and psychological health. The mechanism of obesity development is not fully understood and it is believed to be a disorder with multiple causes. Environmental factors, lifestyle preferences, and cultural environment play pivotal roles in the rising prevalence of obesity worldwide. In general, overweight and obesity are assumed to be the results of an increase in caloric and fat intake. On the other hand, there are supporting evidence that excessive sugar intake by soft drink, increased portion size, and steady decline in physical activity have been playing major roles in the rising rates of obesity all around the world. Consequently, both over-consumption of calories and reduced physical activity are involved in childhood obesity. Almost all researchers agree that prevention could be the key strategy for controlling the current epidemic of obesity. Prevention may include primary prevention of overweight or obesity, secondary prevention or prevention of weight regains following weight loss, and avoidance of more weight increase in obese persons unable to lose weight. Until now, most approaches have focused on changing the behaviour of individuals in diet and exercise. It seems, however, that these strategies have had little impact on the growing increase of the obesity epidemic. While about 50% of the adults are overweight and obese in many countries, it is difficult to reduce excessive weight once it becomes established. Children should therefore be considered the priority population for intervention strategies. Prevention may be achieved through a variety of interventions targeting built environment, physical activity, and diet. Some of these potential strategies for intervention in children can be

  7. Risk Factors and Sexual Assault Prevention.

    Science.gov (United States)

    McCall, George J.

    1993-01-01

    Sexual assault prevention programming remains a confused, scattered, and sporadic enterprise with little scientific underpinning. Sexual assault prevention suffers because it neither fits the traditional crime prevention model, nor the traditional public health model of prevention programming. Traces political and technical consequences, and…

  8. [A model of addiction prevention].

    Science.gov (United States)

    Dalagija-Ramić, L; Dvizac, Z; Mehić-Basara, N

    2001-01-01

    The motive for the realization of the program prevention of the dependence on at primary school, is the knowledge that in our country last years the mental health of children and young endangered also the war which always represents the factor of high risk for psychic development and health. The experiences show that without collaboration between the different experts who are treating with the children and the adolescents has no efficacious prevention, protection, and treatment of dependence on. The better knowing of the normal psychic development leads to better knowing of the disorders and increases the successfulness of the intervention. In this paper is demonstrated the model of the program of the prevention of the dependances applied at the primary school "Edhem Mulabdich". The realization of this program ran through two phases: I-"educator education" for the teachers of the class and subject teaching and II-training program for the selected group of the teachers carriers of the preventive activities. This program we concipated so that through the structurized activities realize the following tasks: education from the different fields of the relevant for the problem of dependency, the development of the skills of the recognition of the pupils for the use of the means of dependensies: The animiting of the school environment so that the problem of dependency on the adequate manner would build in into the regular school activities the development of the expert net and institutions which will intervene in the definite cases. The application of this model for the prevention program of dependency pointed to the possibilities of the efficacious acting at school conditions, with the obligation that in the efficacious acting in school condition, with the obligation that in during the continued application the permanent gets tested, complete and adapt appropriately the requests of the community and scientific knowledges.

  9. Strategies to Prevent Preterm Birth

    Science.gov (United States)

    Newnham, John P.; Dickinson, Jan E.; Hart, Roger J.; Pennell, Craig E.; Arrese, Catherine A.; Keelan, Jeffrey A.

    2014-01-01

    After several decades of research, we now have evidence that at least six interventions are suitable for immediate use in contemporary clinical practice within high-resource settings and can be expected to safely reduce the rate of preterm birth. These interventions involve strategies to prevent non-medically indicated late preterm birth; use of maternal progesterone supplementation; surgical closure of the cervix with cerclage; prevention of exposure of pregnant women to cigarette smoke; judicious use of fertility treatments; and dedicated preterm birth prevention clinics. Quantification of the extent of success is difficult to predict and will be dependent on other clinical, cultural, societal, and economic factors operating in each environment. Further success can be anticipated in the coming years as other research discoveries are translated into clinical practice, including new approaches to treating intra-uterine infection, improvements in maternal nutrition, and lifestyle modifications to ameliorate maternal stress. The widespread use of human papillomavirus vaccination in girls and young women will decrease the need for surgical interventions on the cervix and can be expected to further reduce the risk of early birth. Together, this array of clinical interventions, each based on a substantial body of evidence, is likely to reduce rates of preterm birth and prevent death and disability in large numbers of children. The process begins with an acceptance that early birth is not an inevitable and natural feature of human reproduction. Preventative strategies are now available and need to be applied. The best outcomes may come from developing integrated strategies designed specifically for each health-care environment. PMID:25477878

  10. Acoustic detection of seabed gas leaks, with application to Carbon Capture and Storage (CCS), and leak prevention for the oil and gas industry

    OpenAIRE

    Berges, B.J.P.

    2015-01-01

    The acoustic remote sensing of subsea gas leakage, applied to the monitoring of underwater gas discharges from anthropogenic and natural sources, is becoming increasingly important. First, as the oil and gas industry is facing increasing regulation, there is a need to put more control in the industrial process and to assess the impact on the marine environment. The applications are diverse, including: early warnings of "blow-out" from offshore installations, detection of leaks from underwater...

  11. Balancing Primary Prevention and Statin-Induced Diabetes Mellitus Prevention.

    Science.gov (United States)

    Rochlani, Yogita; Kattoor, Ajoe John; Pothineni, Naga Venkata; Palagiri, Raga Deepak Reddy; Romeo, Francesco; Mehta, Jawahar L

    2017-10-01

    Diabetes mellitus (DM), a modern-day epidemic, is a significant risk factor for cardiovascular disease. It is believed that statins elevate the risk of incident DM. Multiple trials were suggestive of the hyperglycemic effect of long-term statin use. This has prompted the Food and Drug Administration to include the risk of DM in the product label of statins. New-onset DM with statin use is biologically plausible and can be explained based on the multiple pathways in glucose metabolism affected by statins. Most pivotal clinical trials on statins were not powered to adequately assess the risk of incident DM with statin use, and the results from multiple meta-analyses are mixed. Currently, the US Preventive Services Task Force recommend the use of statins for primary prevention in patients with at least 1 cardiovascular risk factor and a 10-year risk of >7.5%. With the new American College of Cardiology/American Heart Association guidelines, the number of patients eligible for statin therapy has increased exponentially, which also calls for caution and increased vigilance in prescribing physicians regarding the controversies surrounding statin use. This article aims to highlight the existing data on statin use for primary prevention in diabetics and nondiabetics and the association of statins use with new-onset DM and its postulated mechanisms. Published by Elsevier Inc.

  12. Prevention of choking among children.

    Science.gov (United States)

    2010-03-01

    Choking is a leading cause of morbidity and mortality among children, especially those aged 3 years or younger. Food, coins, and toys are the primary causes of choking-related injury and death. Certain characteristics, including shape, size, and consistency, of certain toys and foods increase their potential to cause choking among children. Childhood choking hazards should be addressed through comprehensive and coordinated prevention activities. The US Consumer Product Safety Commission (CPSC) should increase efforts to ensure that toys that are sold in retail store bins, vending machines, or on the Internet have appropriate choking-hazard warnings; work with manufacturers to improve the effectiveness of recalls of products that pose a choking risk to children; and increase efforts to prevent the resale of these recalled products via online auction sites. Current gaps in choking-prevention standards for children's toys should be reevaluated and addressed, as appropriate, via revisions to the standards established under the Child Safety Protection Act, the Consumer Product Safety Improvement Act, or regulation by the CPSC. Prevention of food-related choking among children in the United States has been inadequately addressed at the federal level. The US Food and Drug Administration should establish a systematic, institutionalized process for examining and addressing the hazards of food-related choking. This process should include the establishment of the necessary surveillance, hazard evaluation, enforcement, and public education activities to prevent food-related choking among children. While maintaining its highly cooperative arrangements with the CPSC and the US Department of Agriculture, the Food and Drug Administration should have the authority to address choking-related risks of all food products, including meat products that fall under the jurisdiction of the US Department of Agriculture. The existing National Electronic Injury Surveillance System-All Injury

  13. Overweight prevention in adolescents and children (behavioural and environmental prevention

    Directory of Open Access Journals (Sweden)

    Haas, Sabine

    2009-04-01

    Full Text Available Health political background: In 2006, the prevalence of overweight and adiposity among children and adolescents aged three to 17 years is 15%, 6.3% (800,000 of these are obese. Scientific background: Obese children and adolescents have an increased body fat ratio. The reasons for overweight are – among others – sociocultural factors, and a low social status as determined by income and educational level of the parents. The consequences of adiposity during childhood are a higher risk of metabolic and cardiovascular diseases and increased mortality in adulthood. Possible approaches to primary prevention in children and adolescents are measures taken in schools and kindergarten, as well as education and involvement of parents. Furthermore, preventive measures geared towards changing environmental and living conditions are of particular importance. Research questions: What is the effectiveness and efficiency of different measures and programs (geared towards changing behaviour and environmental and living conditions for primary prevention of adiposity in children and adolescents, with particular consideration of social aspects? Methods: The systematic literature search yielded 1,649 abstracts. Following a two-part selection process with predefined criteria 31 publications were included in the assessment. Results: The majority of interventions evaluated in primary studies take place in schools. As the measures are mostly multi-disciplinary and the interventions are often not described in detail, no criteria of success for the various interventions can be extrapolated from the reviews assessed. An economic model calculation for Australia, which compares the efficiency of different interventions (although on the basis of low evidence comes to the conclusion that the intervention with the greatest impact on society is the reduction of TV-ads geared towards children for foods and drinks rich in fat and sugar. There is a significant correlation between

  14. Obesity Prevention in Older Adults.

    Science.gov (United States)

    Volpe, Stella Lucia; Sukumar, Deeptha; Milliron, Brandy-Joe

    2016-06-01

    The number of older adults living in the USA, 65 years of age and older, has been steadily increasing. Data from the National Health and Nutrition Examination Survey (NHANES), 2007-2010, indicate that more than one-third of older adults, 65 years of age and older, were obese. With the increased rate of obesity in older adults, the purpose of this paper is to present research on different methods to prevent or manage obesity in older adults, namely dietary interventions, physical activity interventions, and a combination of dietary and physical activity interventions. In addition, research on community assistance programs in the prevention of obesity with aging will be discussed. Finally, data on federal programs for older adults will also be presented.

  15. Pressure ulcers: prevention and management.

    Science.gov (United States)

    Dib, Mansour

    2008-01-01

    Pressure ulcers are a significant medical problem that greatly affects the geriatric population. We reviewed pertinent published data in the literature concerning the prevention and treatment of pressure ulcers. The development of pressure ulcers is associated with well known risk factors including unrelieved pressure, skin maceration, shear forces, malnutrition and immobility. Risk factor modification is an important aspect in prevention and treatment. When a pressure ulcer develops, various specialized support surfaces and wound care products exist to accelerate wound healing. Alternative therapeutic modalities such as ultrasonic mist and wound vacuum therapy are increasingly being used with success for such ulcers. Pressure ulcers are typically the consequence of underlying medical conditions that should be treated appropriately in order for the wound to heal.

  16. Obesity Prevention in the Military.

    Science.gov (United States)

    Shams-White, Marissa; Deuster, Patricia

    2017-06-01

    The objective was to review prevention efforts and approaches attempting to limit the problem of obesity in the military. Various individual-level initiatives have emerged, including programs promoting healthy cooking, meal planning, and other behavior changes among service members. Importantly, the military is attempting to tackle environmental factors contributing to the rise of obesity, by focusing on many recent environmental-level interventions and initiatives to improve military dining facilities and examine and modify other aspects of installations' built environments. Although published research within the military setting directed towards obesity prevention is limited, many innovative programs have been launched and need to be followed forward. The review of past and ongoing efforts can be an important step in identifying specific areas needing improvement, gaps that should be considered, lessons learned, and characteristics of successful programs that should be disseminated as best practices and further expanded.

  17. Musculoskeletal imaging in preventive medicine.

    Science.gov (United States)

    Kainberger, Franz; Falkowski, Anna L; Hirtler, Lena; Riegler, Georg; Schlegl, Thomas; Thaker, Siddharth; Patsch, Janina; Crevenna, Richard

    2016-02-01

    The aim is to review the modalities in musculoskeletal imaging with view on the prognostic impact for the patient's and for social outcome and with view on three major fields of preventive medicine: nutrition and metabolism, sports, and patient education. The added value provided by preventive imaging is (1) to monitor bone health and body composition with a broad spectrum of biomarkers, (2) to detect and quantify variants or abnormalities of nerves, muscles, tendons, bones, and joints with a risk of overuse, rupture, or fracture, and (3) to develop radiology reports from the widely used narrative format to structured text and multimedia datasets. The awareness problem is a term for describing the underreporting and the underdiagnosis of fragility fractures in osteoporosis.

  18. Antibiotic prevention of postcataract endophthalmitis

    DEFF Research Database (Denmark)

    Kessel, Line; Flesner, Per; Andresen, Jens

    2015-01-01

    of 485 surgeries when intracameral antibiotics were not used. The relative risk (95% CI) of endophthalmitis was reduced to 0.12 (0.08; 0.18) when intracameral antibiotics were used. The difference was highly significant (p preventing......Endophthalmitis is one of the most feared complications after cataract surgery. The aim of this systematic review was to evaluate the effect of intracameral and topical antibiotics on the prevention of endophthalmitis after cataract surgery. A systematic literature review in the MEDLINE, CINAHL...... randomized trial and one observational study. The quality and design of the included studies were analysed using the Cochrane risk of bias tool. The quality of the evidence was evaluated using the GRADE approach. We found high-to-moderate quality evidence for a marked reduction in the risk of endophthalmitis...

  19. Cheating prevention in visual cryptography.

    Science.gov (United States)

    Hu, Chih-Ming; Tzeng, Wen-Guey

    2007-01-01

    Visual cryptography (VC) is a method of encrypting a secret image into shares such that stacking a sufficient number of shares reveals the secret image. Shares are usually presented in transparencies. Each participant holds a transparency. Most of the previous research work on VC focuses on improving two parameters: pixel expansion and contrast. In this paper, we studied the cheating problem in VC and extended VC. We considered the attacks of malicious adversaries who may deviate from the scheme in any way. We presented three cheating methods and applied them on attacking existent VC or extended VC schemes. We improved one cheat-preventing scheme. We proposed a generic method that converts a VCS to another VCS that has the property of cheating prevention. The overhead of the conversion is near optimal in both contrast degression and pixel expansion.

  20. Prevention of Esophageal Variceal Rebleeding

    Directory of Open Access Journals (Sweden)

    Gin-Ho Lo

    2006-12-01

    Full Text Available The rate of rebleeding of esophageal varices remains high after cessation of acute esophageal variceal hemorrhage. Many measures have been developed to prevent the occurrence of rebleeding. When considering their effectiveness in reduction of rebleeding, the associated complications cannot be neglected. Due to unavoidable high incidence of complications, shunt surgery and endoscopic injection sclerotherapy are now rarely used. Transjugular intrahepatic portosystemic stent shunt was developed to replace shunt operation but is now reserved for rescue therapy. Nonselective beta-blockers alone or in combination with isosorbide mononitrate and endoscopic variceal ligation are currently the first choices in the prevention of variceal rebleeding. The combination of nonselective beta-blockers and endoscopic variceal ligation appear to enhance the efficacy. With the advent of newly developed measures, esophageal variceal rebleeding could be greatly reduced and the survival of cirrhotics with bleeding esophageal varices could thereby be prolonged.

  1. Caries Risk Assessment and Prevention

    Directory of Open Access Journals (Sweden)

    Pourhashemi SJ

    2000-05-01

    Full Text Available Over 20 years, several analytical approaches have been designed to predict caries in children."nCaries Risk Assessment is a recently developed technique concern to caries prediction."nThis procedure involves three stages as follows:"n1- Determination and assessment of the dental caries risk factors."n2- Examination and evaluation of each individual child to be specifically diagnosed the level of 3- caries risk e.g. high, moderate and low risk."n3- Recommendation of preventive programs according to risk assessment."nBecause children vary widely in their ability to develop cavities, a well-organized program holds great promise for promoting dental heath for pre-school children of varying caries risk. This article considered a series of principals that dentist can use in case planning, management and prevention programs according to risk assessment.

  2. Pollution prevention program plan 1996

    International Nuclear Information System (INIS)

    1996-01-01

    This plan serves as the principal crosscutting guidance to Department of Energy (DOE) Headquarters, Operations Office, laboratory, and contractor management to fully implement pollution prevention programs within the DOE complex between now and 2000. To firmly demonstrate DOE's commitment to pollution prevention, the Secretary of Energy has established goals, to be achieved by December 31, 1999, that will aggressively reduce DOE's routine generation of radioactive, mixed, and hazardous wastes, and total releases and offsite transfers of toxic chemicals. The Secretary also has established sanitary waste reduction, recycling, and affirmative procurement goals. Site progress in meeting these goals will be reported annually to the Secretary in the Annual Report on Waste Generation and Waste Minimization Progress, using 1993 as the baseline year. Implementation of this plan will represent a major step toward reducing the environmental risks and costs associated with DOE operations

  3. Cancer prevention: epidemiology and perspectives.

    Science.gov (United States)

    Levi, F

    1999-12-01

    Following increases up until the late 1980s, some decline in cancer mortality has been observed in North America and in Western Europe. Approximately half the decline can be attributed to the levelling off in lung and other tobacco-related cancer epidemics and the rest to several factors, including reduced exposure to occupational carcinogens, prevention and early diagnosis, and improved treatment. Between 25 and 30% of all cancer deaths in Europe are due to tobacco smoking. In this review the effect of tobacco smoking on cancer incidence and mortality is examined, together with other important aetiological factors including alcohol, diet and environmental and occupational carcinogens. The effect of new treatments and the potential for prevention of cancer are also discussed.

  4. Vaccines for preventing Japanese encephalitis

    DEFF Research Database (Denmark)

    Schiøler, Karin Linda; Samuel, Miny; Wai, Kim Lay

    2007-01-01

    BACKGROUND: Vaccination is recognized as the only practical measure for preventing Japanese encephalitis. Production shortage, costs, and issues of licensure impair vaccination programmes in many affected countries. Concerns over vaccine effectiveness and safety also have a negative impact...... on acceptance and uptake. OBJECTIVES: To evaluate vaccines for preventing Japanese encephalitis in terms of effectiveness, adverse events, and immunogenicity. SEARCH STRATEGY: In March 2007, we searched the Cochrane Infectious Diseases Group Specialized Register, CENTRAL (The Cochrane Library 2007, Issue 1......), MEDLINE, EMBASE, LILACS, BIOSIS, and reference lists. We also attempted to contact corresponding authors and vaccine companies. SELECTION CRITERIA: Randomized controlled trials (RCTs), including cluster-RCTs, comparing Japanese encephalitis vaccines with placebo (inert agent or unrelated vaccine...

  5. [Preventive strategies in prosthetic dentistry].

    Science.gov (United States)

    Kern, M; Böning, K W; Stark, H; Wolowski, A; Wöstmann, B; Walter, M H

    2011-09-01

    Despite the success in preventing oral diseases, the prevalence of tooth loss in the German population remains high and increases with age. Today, the advances in prosthetic dentistry allow necessary tooth replacement following preventive strategies-after considering benefits and risks. Modern treatment options improve the overall prognosis of the stomatognathic system and the quality of life of the affected patients significantly. Hereby, adverse iatrogenic effects can be minimized or even completely avoided by extending the traditional treatment spectrum, e.g., using adhesively fixed restorations and implant-supported restorations, and refraining from placing restorations that are unnecessary from the medical point of view. Generally, patients benefit greatly from prosthetic treatment and the achieved health gain is remarkably high. It encompasses not only the recovery of the impaired oral functions but also extends to the whole human organism, including nutrition, digestion, musculoskeletal system, as well as mental and social well-being.

  6. ED navigators prevent unnecessary admissions.

    Science.gov (United States)

    2012-02-01

    RN Navigators in the emergency department at Montefiore Medical Center work with social workers to prevent unnecessary admissions. Program targets the homeless and patients with tenuous living situations. CMs work with the emergency department staff to identify patients who don't meet admission criteria but can't be safely discharged. The hospital collaborates with a local housing assistance agency which sends a van to transport appropriate patients to a shelter.

  7. Diabetes Prevention and Treatment Strategies

    OpenAIRE

    Backholer, Kathryn; Peeters, Anna; Herman, William H.; Shaw, Jonathan E.; Liew, Danny; Ademi, Zanfina; Magliano, Dianna J.

    2013-01-01

    OBJECTIVE Effective interventions to prevent, delay, or remit diabetes are currently available. However, their impact on the prevalence of diabetes at the population level is unknown. This study aimed to estimate the impact of a range of diabetes interventions on the population prevalence of diabetes for Australian adults between 2010 and 2025. RESEARCH DESIGN AND METHODS We used the Australian Diabetes Projection Model to estimate the impact of a population-wide strategy, high-risk preventio...

  8. Preventing aggressive behaviour in dogs

    OpenAIRE

    Orritt, Rachel

    2016-01-01

    Abstract Delegates from around the world met at the University of Lincoln on June 11 and 12 for the third annual UK Dog Bite Prevention and Behaviour conference. The conference, hosted by dog trainer Victoria Stilwell, brings together dog behaviour experts to discuss possible solutions to this public health issue. Rachel Orritt, who has been examining the perceptions, assessment and management of human-directed aggressive behaviour in dogs for her PhD, reports.

  9. Preventing Teen Pregnancy PSA (:60)

    Centers for Disease Control (CDC) Podcasts

    2015-04-07

    This 60 second public service announcement is based on the April 2015 CDC Vital Signs report. Teen births in the U.S. have declined, but still, more than 273,000 infants were born to teens ages 15 to 19 in 2013. Learn about the most effective types of birth control.  Created: 4/7/2015 by National Center for Chronic Disease Prevention and Health Promotion (NCCDPHP).   Date Released: 4/7/2015.

  10. Preventing State Collapse in Syria

    Science.gov (United States)

    2017-01-01

    Street Journal, June 4, 2015; and Griff Witte , Sudarsan Raghavan, and James McAuley, “Flow of Foreign Fighters Plummets as Islamic State Loses Its...ISIS Attacks Around the World,” New York Times, June 14, 2016. 7 James R. Clapper, “Statement for the Record: Worldwide Threat Assessment of the U.S...Reconstruction, Santa Monica, Calif.: RAND Corporation, MG-1119-OSD, 2011; and James Dobbins and Andrew Parasiliti, eds., Preventing Daesh 2.0

  11. Preventing violence against public servants

    OpenAIRE

    Wikman, Sofia; Rickfors, Ulrika

    2016-01-01

    Preventing violence against public servants From safety science, we have learned that in light of increasing demands and system complexity, we must adapt our approach to safety. We have to include new practices to look for what goes right, focus on frequent events, remain sensitive to the possibility of failure, to be thorough as well as efficient, and to view an investment in safety as an investment in productivity. But most people still think of safety as the absence of accidents and incide...

  12. New technology for accident prevention

    Energy Technology Data Exchange (ETDEWEB)

    Byne, P. [Shiftwork Solutions, Vancouver, BC (Canada)

    2006-07-01

    This power point presentation examined the effects of fatigue in the workplace and presented 3 technologies designed to prevent or monitor fatigue. The relationship between mental fatigue, circadian rhythms and cognitive performance was explored. Details of vigilance related degradations in the workplace were presented, as well as data on fatigue-related accidents and a time-line of meter-reading errors. It was noted that the direct cause of the Exxon Valdez disaster was sleep deprivation. Fatigue related accidents during the Gulf War were reviewed. The effects of fatigue on workplace performance include impaired logical reasoning and decision-making; impaired vigilance and attention; slowed mental operations; loss of situational awareness; slowed reaction time; and short cuts and lapses in optional or self-paced behaviours. New technologies to prevent fatigue-related accidents include (1) the driver fatigue monitor, an infra-red camera and computer that tracks a driver's slow eye-lid closures to prevent fatigue related accidents; (2) a fatigue avoidance scheduling tool (FAST) which collects actigraphs of sleep activity; and (3) SAFTE, a sleep, activity, fatigue and effectiveness model. refs., tabs., figs.

  13. Teen pregnancy prevention: current perspectives.

    Science.gov (United States)

    Lavin, Claudia; Cox, Joanne E

    2012-08-01

    Teen pregnancy has been subject of public concern for many years. In the United States, despite nearly 2 decades of declining teen pregnancy and birth rates, the problem persists, with significant disparities present across racial groups and in state-specific rates. This review examines recent trends, pregnancy prevention initiatives and family planning policies that address the special needs of vulnerable youth. Unintended teen pregnancies impose potentially serious social and health burdens on teen parents and their children, as well as costs to society. Trends in teen pregnancy and birth rates show continued decline, but state and racial disparities have widened. Demographic factors and policy changes have contributed to these disparities. Research supports comprehensive pregnancy prevention initiatives that are multifaceted and promote consistent and correct use of effective methods of contraception for youth at risk of becoming pregnant. There is strong consensus that effective teen pregnancy prevention strategies should be multifaceted, focusing on delay of sexual activity especially in younger teens while promoting consistent and correct use of effective methods of contraception for those youth who are or plan to be sexually active. There is a need for further research to identify effective interventions for vulnerable populations.

  14. Hydrogen permeation preventive structural materials

    International Nuclear Information System (INIS)

    Fukushima, Kimichika; Nakahigashi, Shigeo; Imura, Masashi; Terasawa, Michitaka; Ebisawa, Katsuyuki.

    1986-01-01

    Purpose: To provide highly practical wall materials for use in thermonuclear reactors capable of effectively preventing the permeation of hydrogen isotopes such as tritium thereby preventing the contamination of coolants. Constitution: Helium gas is injected into or at the surface of base materials comprising stainless steel plates to form a helium gas region. Alternatively, boron, nitrogen or the compound thereof having a greater helium forming nuclear reaction cross section than that of the base materials is mixed or injected into the base material to form the helium gas region through (n,α) reaction under neutron irradiation. Since the helium gas region constitutes a diffusion barrier for the tritium as the hydrogen isotope, the permeation amount of tritium is significantly suppressed. Helium gas bubbles or lattice defects are formed in the helium gas region under the neutron irradiation, by which the hydrogen isotope capturing effect can also be effected. In this way, permeation of the hydrogen isotope, contamination of the coolants, etc. can be prevented to provide great practical effectives. (Kawakami, Y.)

  15. [Colorectal cancer prevention by flavonoids].

    Science.gov (United States)

    Hoensch, Harald; Richling, Elke; Kruis, Wolfgang; Kirch, Wilhelm

    2010-08-01

    Valid, sustained and safe clinical means of colorectal cancer prevention are still lacking, but they are urgently needed to lower the incidence of colorectal cancer. Dietary factors and phytochemicals such as flavonoids play an important role for prevention. A selective search of the literature using PubMed was performed with the following key words: flavonoids, cancer, therapy, colorectal cancer focused on clinical queries. Results of clinical studies including the authors' own were compared. In vivo and in vitro studies with animals, cell cultures and subcellular components provide ample evidence for antimutagenic and anticarcinogenic effects of flavonoids as shown for multiple biological and molecular endpoints. Isoflavonoids in vitro have been shown to induce proliferation of breast cancer cells. Epidemiologic trials (cohort, case-control and cross-sectional studies) yielded inconsistent results for flavonoid protection. Systematic reviews and meta-analyses support the protective role of tea flavonoids on adenoma incidence. An interventional pilot study with sustained flavonoid supplementation was shown to reduce the rate of neoplasia in patients with resected colorectal cancer. Selected flavonoids possess antimutagenic and anticarcinogenic properties and could reduce the incidence of colorectal neoplasias as shown in epidemiologic trials. Randomized controlled clinical studies with flavonoid intervention are necessary to provide evidence for their role in colorectal cancer prevention.

  16. Prevention of diseases in Gynecology

    Directory of Open Access Journals (Sweden)

    Sebija Izetbegovic

    2013-01-01

    Results: There are five primary functions of management as: Anticipate and plan, organize, command, coordinate and control. If we introduce the following definition in the sense of medical science and apply it to the medical practice that would mean way of recognizing, managing and resolving issues of diagnosis and therapy of diseases (in this case gynecology diseases according to certain guidelines and treatment algorithms. Treatment of family doctors is an important aspect in the quality-of-life of women and their reproductive health as well as a significant issue in public, environmental and social problems. Conclusions: It is very important to deal with it on the primary care level and in addition to promote the primary and secondary prevention of diseases, which is sometimes more important than the curative procedures. The primary prevention involves regular gynecological examinations and screening. The doctors have also a duty to educate women about the risk factors for malignant diseases, as well as proposing some of the qualitative preventive measures.

  17. Skills methods to prevent smoking.

    Science.gov (United States)

    Schinke, S P; Gilchrist, L D; Schilling, R F; Snow, W H; Bobo, J K

    1986-01-01

    School health educators have devoted much attention to cigarette smoking. Recent years have seen the testing of interventions to prevent smoking. To date, controlled studies have not evaluated the added value of skills methods for preventing smoking. This article describes such an evaluation with sixth-grade students from two schools. Subjects were pretested and randomly assigned to receive conventional health education methods or to receive skills intervention. Both conditions included films, peer testimonials, discussions, and homework. Health education condition subjects additionally participated in oral quizzes, games, and debates. Skills condition subjects additionally learned problem-solving, self-instruction, and interpersonal communication methods. At postintervention, skills condition subjects, more than health education condition subjects, had better scores on measures of smoking-related knowledge, attitudes, and intentions. In addition, reported cigarette use, validated by biochemical data collection, was lower in the skills condition than in the health education condition at all postintervention measurements, including a 24-month follow-up. The article discusses the strengths, limits, and implications of the study for other smoking prevention efforts in schools.

  18. Primary Prevention of Food Allergy.

    Science.gov (United States)

    Greenhawt, Matthew J; Fleischer, David M

    2017-04-01

    Food allergy is estimated to affect approximately 8% of children in the USA. This is a disease without any known treatment or cure and, for some, a disease that can be quite severe, even life-threatening. While recent advances in potential treatment have made remarkable strides, with two food-targeted immunotherapy products now in phase III trials, perhaps the biggest gains in the field have come in the advent of potential preventative strategies to avoid the development of food allergy in high-risk individuals. There have been multiple, randomized, controlled trials (RCTs) performed in the past 5 years that have demonstrated significant risk reduction from early allergen introduction. These include two trials for early peanut introduction and five trials for early egg introduction in the first year of life. The results indicate that primary prevention of food allergy through early allergen introduction may represent a strategy that could potentially avert tens of thousands of children from becoming food allergic. In support of the data for peanut, the National Institute of Allergy and Infectious Diseases recently sponsored an addendum to the 2010 food allergy guidelines, specifically recommending peanut be introduced in both high- and standard-risk infants to reduce the risk of developing peanut allergy. To date, no formal recommendations have been made for egg, however. This review will focus on the latest evidence supporting early introduction as a strategy to prevent food allergy, as well as on practical aspects for its successful implementation.

  19. Preventing Online Victimization: College Students' Views on Intervention and Prevention.

    Science.gov (United States)

    White, Wendi E; Carmody, Dianne

    2016-01-14

    Facebook, Twitter, and other social networking sites have changed the way we interact online. Technological advances have also facilitated the emergence of cyberstalking and online harassment, a growing issue on college campuses. This study utilizes focus group data to examine college students' experiences with online harassment and cyberstalking. Students voiced concerns with online tracking, falsifying identities, and harassment. They also noted that incoming first-year students and those negotiating some of their first romantic relationships are especially vulnerable. In addition, students were asked to propose appropriate prevention, education, and intervention strategies at the college level. Surprisingly, many students recommended offline programs to battle this online problem. © The Author(s) 2016.

  20. Drink your prevention: beverages with cancer preventive phytochemicals.

    Science.gov (United States)

    Rossi, Teresa; Gallo, Cristina; Bassani, Barbara; Canali, Sara; Albini, Adriana; Bruno, Antonino

    2014-01-01

    Specific alimentary habits, including oriental and Mediterranean diets characterized by high consumption of vegetables, fruits, cereals and, for the Mediterranean diet, olive oil, are associated with a reduction of risk of cardiovascular diseases, type 2 diabetes, neurodegenerative diseases, and some cancers. Numerous beverages contain diverse natural compounds, termed phytochemicals, that have been reported to exert antitumor, antiangiogenic, and antioxidant properties. Here we review the chemopreventive and angiopreventive properties of selected phytochemicals found in common beverages: epigallocatechin(green tea), triterpenoids (citrus juices), resveratrol (red wine), xanthohumol (beer), procyanidin (chocolate), and caffeine (coffee), focusing on their molecular mechanisms, providing "ready to drink" prevention approaches.

  1. [Infection prevention check-in and infection prevention check-out to prevent nosocomial infections].

    Science.gov (United States)

    Kramer, A; Schilling, M; Heidecke, C D

    2010-02-01

    A precondition for the success of the prevention of SSI is the complete realisation of the proven anti-infective measures in form of the multi-barrier strategy or the so-called bundles. In daily practice it is important to follow the fixed instructions, i. e., to ensure a high compliance. In much the same way as an airline pilot or co-pilot must examine whether all instruments are functioning before each take-off, a comparable procedure should be developed as a pre-operative control for the observance of all -defined measures by the responsible surgeon and for the post-operative supervision by the patient. For the control of the observance of the defined pre-operative prevention measures, a check list with 12 items was developed, named the "infection prevention check-in". The check list is authorised by the responsible surgeon be-fore each operation. For the surveillance of the general hygiene in the post-operative period the "infection prevention check-out" with 14 items was developed. Thereby the patient is able to evaluate the staff's compliance with the hygienic measures at the time of dismissal. With the introduction of the check-lists a simple means is given to involve both the team of the surgeons and the ward staff, together with the patient, into the infection prophylaxis even more effectively. In order to assess the success of those measures, the influence on the rate of SSI is to be determined prospectively. Georg Thieme Verlag Stuttgart, New York.

  2. Preventive Indicators for Creating Brownfields

    Directory of Open Access Journals (Sweden)

    Marija Burinskienė

    2015-05-01

    Full Text Available Although the problem of brownfields in urban territories is successfully limited, it is a negative phenomenon of a sustainable city. Moreover, the number of recently created brownfield territories has become higher than that of the regenerated ones. Such territories reduce the quality of the social and economic setting of a city as well as visually and physically affect the life quality of city residents. Unfortunately, methods for the revitalization of brownfield land have been applied to deal with the consequences of the problem rather than to limit the problem itself. The authors of the article have investigated the aspects to be avoided to not create brownfields. The indicators that enable predicting the probability of a territory becoming a brownfield have been analyzed in this paper. Countries develop and exist under different social and economic conditions. Therefore, there is no uniform and universally accepted system of indicators for brownfield prevention that can be applied in any country or city. The authors have attempted to implement a recently developed idea of indicators for prevention under Lithuanian conditions and have selected those facilitating the identification of brownfields with an aim of identifying the most significant ones warning about the potential harm from the creation of brownfields in Lithuania. The selected indicators have been grouped, taking into account social, economic, natural, building and infrastructure settings of the city and ranked by a group of experts in urban planning. The established hierarchy of indicators in the groups of urban setting has allowed the authors to select the most significant preventive indicators for brownfields. The created system of indicators could be applied in practice as a basis for monitoring pertinent data and tracking their change.

  3. Prevention of thromboembolism during radiosynoviorthesis?

    International Nuclear Information System (INIS)

    Fischer, M.; Ritter, B.

    2006-01-01

    The question of pharmacological prevention of thromboembolic disease during radiosynoviorthesis with concomitant immobilization of the treated joint is discussed by means of a recent case report. The possible advantages must be balanced against the potential risks of hemorrhage and heparine-induced thrombocytopenia in every patient. The intraarticular radionuclide therapy might be ranked as ''low risk'', comparable to small or medium interventions with minor trauma according to surgical and perioperative classifications, provided that there are no individual risk factors. With respect to the possible side effects, a general thromboembolic prophylaxis is not recommended in these patients. After radiosynoviorthesis of the knee and an additional joint of the same limb which requires an immobilization spanning both joints, a ''medium risk'' of thromboembolic disease must be assumed. In these cases, as well as with two or more predisposing risk factors, a pharmacological prevention of thromboembolism is mandatory. Ready-to-use syringes containing low-molecular-weight heparine are available for this purpose. Although serious side effects from LMW heparine are rare, monitoring of the thrombocyte counts prior to and 1-2 times during heparine application are advisable. Pharmacological prophylaxis of thromboembolic disease is strictly contraindicated in patients with acute bleeding, cerebral aneurysms and known aortic dissections. In case of concomitant treatment with NSAIDs, antagonists of platelet aggregation or valproic acid, the indication for heparine treatment should be discussed very seriously. Both the verbal and written information of each patient must be complete and precise with respect to possible advantages and potential risks of pharmacological prevention of thromboembolic disease. (orig.)

  4. Pollution Prevention Program: Technology summary

    International Nuclear Information System (INIS)

    1994-02-01

    The Department of Energy (DOE) has established a national Research, Development, Demonstration, Testing, and Evaluation (RDDT ampersand E) Program for pollution prevention and waste minimization at its production plants During FY89/90 the Office of Environmental Restoration and Waste Management (EM), through the Office of Technology Development (OTD), established comprehensive, pollution prevention technical support programs to demonstrate new, environmentally-conscious technology for production processes. The RDDT ampersand E program now entails collaborative efforts across DOE. The Pollution Prevention Program is currently supporting three major activities: The DOE/US Air Force Memorandum of Understanding Program is a collaborative effort to utilize the combined resources of DOE and the Department of Defense, eliminate duplication of effort in developing technologies, and to facilitate technology solutions aimed at reducing waste through process modification, material substitution or recycling. The Waste Component Recycle, Treatment and Disposal Integrated Demonstration (WeDID) will develop recycle, treatment, and disposal processes and associated technologies for use in the dismantlement of non-nuclear weapons components, to support US arms treaties and policies. This program will focus on meeting all security and regulatory requirements (with additional benefit to the commercial electronics industry). The Environmentally Conscious Manufacturing Integrated Demonstration (ECMID) will effectively implement ECM technologies that address both the needs of the DOE Complex and US electronics industry, and encourage strong interaction between DOE and US industry. The ECMID will also develop life cycle analysis tools that will aid decisionmakers in selecting the optimum process based on the tradeoffs between cost an environmental impact

  5. Effective interventions for pressure ulcer prevention.

    Science.gov (United States)

    Bonomini, Joanna

    This article examines the causes of pressure ulcers and provides an overview of the best advice available in preventing them in the clinical setting. This should enable nurses to provide more effective interventions for preventing patients from developing pressure ulcers.

  6. Can Diabetes Be Prevented (For Kids)

    Science.gov (United States)

    ... Safe Videos for Educators Search English Español Can Diabetes Be Prevented? KidsHealth / For Kids / Can Diabetes Be ... be prevented. How? Let's find out. What Is Diabetes? Diabetes is a disease that affects how the ...

  7. Behavioral Counseling to Prevent Skin Cancer

    Science.gov (United States)

    Understanding Task Force Recommendations Behavioral Counseling to Prevent Skin Cancer The U.S. Preventive Services Task Force (Task Force) has issued a final recommendation statement on Behavioral Counseling ...

  8. Parenting to Prevent Childhood Alcohol Use

    Science.gov (United States)

    ... Parenting to Prevent Childhood Alcohol Use Print Version Parenting to Prevent Childhood Alcohol Use Drinking alcohol undoubtedly ... drunk at least once by 12th grade. 1 Parenting Style Accumulating evidence suggests that alcohol use—and ...

  9. Optimized NSAIDs for Breast Cancer Prevention

    National Research Council Canada - National Science Library

    Carson, Dennis A

    2006-01-01

    .... Also, how these agents prevent breastcancer is not understood. This project will develop an optimized NSAID for breast cancer prevention that can betaken safely at high doses, and will determine its mechanisms of action...

  10. Optimized NSAIDS for Breast Cancer Prevention

    National Research Council Canada - National Science Library

    Carson, Dennis A

    2005-01-01

    .... Also, how these agents prevent breast cancer is not understood. This project will develop an optimized NSAID for breast cancer prevention that can be taken safely at high doses, and will determine its mechanisms of action...

  11. Can Vitamins Help Prevent a Heart Attack?

    Science.gov (United States)

    ... vitamins help prevent a heart attack? Can taking vitamins help prevent heart disease or a heart attack? Answers ... M.D. It's not yet clear if taking vitamins can reduce your risk of developing heart disease ...

  12. Top Questions About HIV Prevention and Women

    Science.gov (United States)

    ... THE OFFICE ON WOMEN’S HEALTH Top Questions About HIV Prevention and Women The human immunodeficiency virus, or HIV, ... entry of HIV. This is Top Questions About HIV Prevention and Women 2 especially true for girls and ...

  13. School Programming for the Prevention of Addictions.

    Science.gov (United States)

    Jensen, Marilyn A.

    1992-01-01

    Defines "addiction" and discusses models of addiction. Discusses implications for school prevention programs. Discusses role of school counselor in implementation of a comprehensive addiction prevention program, including assessment, curricular components, intervention programs, and staff development. Presents questions and criteria to…

  14. Prevention of Allergies and Asthma in Children

    Science.gov (United States)

    ... possibly prevent allergies or asthma from developing. Preventing Food Allergies Food allergies can cause problems ranging from eczema to life- ... has allergic conditions are at risk for developing food allergy, especially if they already exhibit allergic symptoms of ...

  15. Diabetes Mellitus amp Its Prevention

    Directory of Open Access Journals (Sweden)

    KusumaNeela Bolla

    2015-08-01

    Full Text Available Abstract Diabetes Mellitus has been known for centuries as a disease related to sweetness. even though several million people all over the world are effected with diabetes not all are well informed about the nature of the disease. in diabetes there is excessive glucose in blood and urine due to inadequate production of insulin or insulin resistance. diabetics can lead a normal life provided they take prescribed durgs and make certain changes in their lifestyle particularly in their diet and physical activity. uncontrolled diabetes leads to some of the complication so some of the home remedies also play a major role to prevent the diabetes.

  16. The plutonium mountain: preventing diversion

    International Nuclear Information System (INIS)

    Pohling-Brown, Pamela.

    1997-01-01

    With continued arms-reduction between the USA and the former Soviet Union, surplus nuclear materials, from dismantled weapons, requires handling. A number of risks are identified including occupational safety for workers involved with handling nuclear materials, and environmental protection. Perhaps the most sinister is the extra security needed to ensure that these materials are not diverted to rogue states or terrorist groups, as materials are handled in a larger number of countries. In particular, the author addresses the problem of plutonium reserves, and discusses the role of reprocessing in preventing diversion. (UK)

  17. PREVENTIVE PAEDIATRICS — NEW CHALLENGES

    Directory of Open Access Journals (Sweden)

    A. A. Baranov

    2012-01-01

    Full Text Available The article takes up priority directions of preventive paediatrics concerning health formation of rising generation, organization of health care for children, decrease of morbidity, disability and mortality rate. The authors mention the importance of vaccination in control of the most common infections, base the necessity of complex rehabilitation health care system organization for disable children and need of wide spreading of developed and used in practical Russian health care types and methods of prophylaxis of rare (orphan diseases. The ways of prophylaxis, maintenance, strengthening and recovery of children’s health are suggested in this article.

  18. Preventing Interstate Armed Conflict : whose responsibility?

    OpenAIRE

    Otunba, Ganiyu

    2010-01-01

    This is a study of interstate armed conflict prevention. The concept of conflict, armed conflict and conflict prevention is defined and explained in order to be able to investigate if there is any single institution saddled with the responsibility of preventing interstate armed conflict and also to verify if adequate efforts are been put in this area which is of importance to mankind. The relationship between conflict prevention, conflict management and conflict resolution is also discussed s...

  19. 32 CFR 989.31 - Pollution prevention.

    Science.gov (United States)

    2010-07-01

    ... 32 National Defense 6 2010-07-01 2010-07-01 false Pollution prevention. 989.31 Section 989.31 National Defense Department of Defense (Continued) DEPARTMENT OF THE AIR FORCE ENVIRONMENTAL PROTECTION ENVIRONMENTAL IMPACT ANALYSIS PROCESS (EIAP) § 989.31 Pollution prevention. The Pollution Prevention Act of 1990, 42 U.S.C. 13101(b), established a...

  20. Tuberculosis Facts - You Can Prevent TB

    Science.gov (United States)

    Tuberculosis (TB) Facts You Can Prevent TB What is TB? “TB” is short for a disease called tuberculosis. TB is spread through the air from one ... Viral Hepatitis, STD, and TB Prevention Division of Tuberculosis Elimination TB Facts: You Can Prevent TB What ...

  1. Practical Strategies for Preventing Adolescent Suicide

    Science.gov (United States)

    King, Keith

    2006-01-01

    A comprehensive approach to suicide prevention is needed to effectively address the problem of teen suicide. This article describes three levels of prevention (primary prevention, intervention, and postvention) and provides practical strategies that community, mental, and social health professionals can use within each level to help prevent…

  2. New Campus Crime Prevention Resources Available

    Science.gov (United States)

    Campus Law Enforcement Journal, 2012

    2012-01-01

    The Campus Crime Prevention Committee has compiled a list of university and college crime prevention agencies and resources, which includes contact information, links to agency crime prevention web pages, and a list of resources they offer (i.e., brochures, guides, PowerPoint programs, videos, etc.) as well as a spreadsheet showing organizations…

  3. Suicide and Its Prevention on College Campuses

    Science.gov (United States)

    Keyes, Lee

    2012-01-01

    Suicide is a significant issue facing higher education institutions. Many campuses are involved in a variety of procedures, programs, and initiatives that seek to reduce or prevent suicide and the impact of suicide-related behavior. This article offers examples of campus prevention efforts, important resources on suicide prevention for college…

  4. Suicide Prevention with Diverse College Students

    Science.gov (United States)

    Shadick, Richard; Akhter, Sarah

    2014-01-01

    Because of a dearth of experience in preventing suicide in diverse student populations, Pace University developed a multicultural suicide prevention kit. This article details the process used to develop the kit. The rationale for approaching suicide prevention in a culturally competent manner is presented, and methods used to gain culture-specific…

  5. Youth, Terrorism and Education: Britain's Prevent Programme

    Science.gov (United States)

    Thomas, Paul

    2016-01-01

    Since the 7/7 bombings of July 2005, Britain has experienced a domestic terror threat posed by a small minority of young Muslims. In response, Britain has initiated "Prevent," a preventative counter-terrorism programme. Building on previous, general critiques of Prevent, this article outlines and critically discusses the ways in which…

  6. Orwellian risks in European conflict prevention discourse

    NARCIS (Netherlands)

    de Wilde, J.H.

    2006-01-01

    Conflict prevention has been the nomenclature of a non-military type of security policy, but that is changing. During the Cold War, the OSCE was a forum for conflict prevention at an interstate level. After the Cold War, OSCE conflict prevention turned to domestic affairs, comparable to NGO

  7. Core Stability Training for Injury Prevention

    OpenAIRE

    Huxel Bliven, Kellie C.; Anderson, Barton E.

    2013-01-01

    Context: Enhancing core stability through exercise is common to musculoskeletal injury prevention programs. Definitive evidence demonstrating an association between core instability and injury is lacking; however, multifaceted prevention programs including core stabilization exercises appear to be effective at reducing lower extremity injury rates. Evidence Acquisition: PubMed was searched for epidemiologic, biomechanic, and clinical studies of core stability for injury prevention (keywords: ...

  8. How Can You Prevent Rabies in Animals?

    Science.gov (United States)

    ... Regulation of diagnostic test kits Prevention Prevention in animals Prevention in people Rabies in the U.S. and around the World ... United States? Veterinarians What to do with an animal that has bitten a person Caring for animals with potential exposure Clinical signs ...

  9. A Framework for Engaging Parents in Prevention

    Science.gov (United States)

    Randolph, Karen A.; Fincham, Frank; Radey, Melissa

    2009-01-01

    The literature on engaging families in prevention programs is informed by the Health Beliefs Model (HBM), Theory of Reasoned Action (TRA), and Family Systems theory. Although useful, these frameworks have not facilitated the development of prevention-based practice strategies that recognize different levels of prevention (i.e., universal,…

  10. Perceived competency towards preventive dentistry among dental ...

    African Journals Online (AJOL)

    Background: A previous study has shown that dental practitioners in Benghazi believed that the less prevention-oriented education system is one of the barriers to applying preventive dentistry. Objective: To assess attitudes and perceived competence of the dental graduates in Benghazi towards prevention and early ...

  11. Natural Products and Dietary Prevention of Cancer

    Science.gov (United States)

    The concept of cancer prevention was first introduced in studies using the natural form of vitamin A in the prevention of epithelial cancers. Ever since, research on cancer prevention has grown and become a rather specialized field study. Cancer is a multistage process, and takes several years for...

  12. Vitamin D in dementia prevention.

    Science.gov (United States)

    Annweiler, Cédric

    2016-03-01

    Beyond effects on bone health, vitamin D exerts effects on a variety of target organs, including the brain. The discussion herein presents the state of the art in research on the neurological role of vitamin D and clinical implications among older adults, including implications for dementia onset and progression. Some of the neurosteroid actions of vitamin D include regulation of calcium homeostasis, clearance of amyloid-β peptide, antioxidant and anti-inflammatory effects, and possible protection against the neurodegenerative mechanisms associated with Alzheimer's disease (AD). The correction of age-related hypovitaminosis D and cognitive decline has been reported by various cross-sectional and longitudinal studies reporting associations of lower vitamin D concentrations with brain changes and poorer cognition, specifically with respect to executive dysfunction. Epidemiological studies have consistently shown an association between inadequate dietary intake of vitamin D and cognitive disorders, including greater AD risk. Although there have not been any randomized placebo-controlled trials conducted to examine the effectiveness of vitamin D supplementation to prevent AD, several nonrandomized controlled studies have found that older adults experienced cognitive improvements after 1-15 months of vitamin D supplementation. Therefore, it appears crucial to maintain vitamin D concentrations at sufficiently high levels in order to slow, prevent, or improve neurocognitive decline. © 2016 New York Academy of Sciences.

  13. Preventing dance injuries: current perspectives

    Directory of Open Access Journals (Sweden)

    Russell JA

    2013-09-01

    Full Text Available Jeffrey A Russell Division of Athletic Training, School of Applied Health Sciences and Wellness, Ohio University, Athens, OH, USA Abstract: Dancers are clearly athletes in the degree to which sophisticated physical capacities are required to perform at a high level. The standard complement of athletic attributes – muscular strength and endurance, anaerobic and aerobic energy utilization, speed, agility, coordination, motor control, and psychological readiness – all are essential to dance performance. In dance, as in any athletic activity, injuries are prevalent. This paper presents the research background of dance injuries, characteristics that distinguish dance and dancers from traditional sports and athletes, and research-based perspectives into how dance injuries can be reduced or prevented, including the factors of physical training, nutrition and rest, flooring, dancing en pointe, and specialized health care access for dancers. The review concludes by offering five essential components for those involved with caring for dancers that, when properly applied, will assist them in decreasing the likelihood of dance-related injury and ensuring that dancers receive optimum attention from the health care profession: (1 screening; (2 physical training; (3 nutrition and rest; (4 specialized dance health care; and (5 becoming acquainted with the nature of dance and dancers. Keywords: dance, injuries, injury prevention, fitness, wellness, health

  14. Relapse prevention for addictive behaviors

    Directory of Open Access Journals (Sweden)

    George William H

    2011-07-01

    Full Text Available Abstract The Relapse Prevention (RP model has been a mainstay of addictions theory and treatment since its introduction three decades ago. This paper provides an overview and update of RP for addictive behaviors with a focus on developments over the last decade (2000-2010. Major treatment outcome studies and meta-analyses are summarized, as are selected empirical findings relevant to the tenets of the RP model. Notable advances in RP in the last decade include the introduction of a reformulated cognitive-behavioral model of relapse, the application of advanced statistical methods to model relapse in large randomized trials, and the development of mindfulness-based relapse prevention. We also review the emergent literature on genetic correlates of relapse following pharmacological and behavioral treatments. The continued influence of RP is evidenced by its integration in most cognitive-behavioral substance use interventions. However, the tendency to subsume RP within other treatment modalities has posed a barrier to systematic evaluation of the RP model. Overall, RP remains an influential cognitive-behavioral framework that can inform both theoretical and clinical approaches to understanding and facilitating behavior change.

  15. The prevention of neurogenetic disease.

    Science.gov (United States)

    Rosenberg, R N; Iannaccone, S T

    1995-04-01

    A significant number of major neurogenetic diseases have been defined at the molecular level in recent years, making it possible to determine precisely the genotype for familial Alzheimer's disease, Huntington's disease, Machado-Joseph disease, dominantly inherited ataxia, Charcot-Marie-Tooth disease, myotonic muscular dystrophy, Duchenne-Becker muscular dystrophy, familial amyotrophic lateral sclerosis, and neurofibromatosis. This information has made it possible to identify the abnormal genotype of at-risk persons for these diseases and for at-risk pregnancies for several of them. Precise molecular diagnoses are thus possible using applied molecular markers. Prevention of disease can be achieved using these molecular markers with genetic counseling and appropriate family planning. Significant progress is being made in this regard with Tay-Sachs disease, Huntington's disease, the dominantly inherited ataxias, and the muscular dystrophies. Further, this molecular genotyping will be of indispensible value to families with these diseases when somatic cell gene therapy becomes available. The field of molecular neurogenetics is moving forward rapidly, and advances in gene identification for these diseases will lead in the near future to the means to prevent many of them.

  16. Crisis management and crisis prevention

    International Nuclear Information System (INIS)

    Wallensteen, P.

    1988-01-01

    This paper reports that many proposals have come forth to ease the tension between East and West. Some focus on arms developments, others take up diplomatic issues. In addition, some have raised the question of crisis management and crisis prevention. Can crises be prevented even before they have taken place? The Palme Commission on Disarmament and Security suggested, in its 1982 report, ways of restraining superpower involvement in Third World conflicts. Such conflicts, it was argued, could escalate and ultimately result in nuclear confrontation between the United States and the Soviet Union. Certainly, the commission also paid attention to conflicts over issues in Europe and to problems in Eastern or in Western Europe. However, the commission raised a question that lately has received increasing attention: the dangers of superpower confrontation over Third World issues. In his statement to the United Nations on 24 October 1985, President Regan pointed to the need for settling regional conflicts as they play a large role in building suspicions and tensions. Regan's initiative explicitly concerned Afghanistan, Cambodia, Ethiopia, Angola and Nicaragua. It included negotiations with the Soviet Union over Afghanistan, and, at a later stage, also over other issues. The goal, he the, was not to force a settlement on the parties. The initiative concerned issues that have for the American public, justified armaments and reduced Soviet credibility

  17. Relapse prevention for addictive behaviors.

    Science.gov (United States)

    Hendershot, Christian S; Witkiewitz, Katie; George, William H; Marlatt, G Alan

    2011-07-19

    The Relapse Prevention (RP) model has been a mainstay of addictions theory and treatment since its introduction three decades ago. This paper provides an overview and update of RP for addictive behaviors with a focus on developments over the last decade (2000-2010). Major treatment outcome studies and meta-analyses are summarized, as are selected empirical findings relevant to the tenets of the RP model. Notable advances in RP in the last decade include the introduction of a reformulated cognitive-behavioral model of relapse, the application of advanced statistical methods to model relapse in large randomized trials, and the development of mindfulness-based relapse prevention. We also review the emergent literature on genetic correlates of relapse following pharmacological and behavioral treatments. The continued influence of RP is evidenced by its integration in most cognitive-behavioral substance use interventions. However, the tendency to subsume RP within other treatment modalities has posed a barrier to systematic evaluation of the RP model. Overall, RP remains an influential cognitive-behavioral framework that can inform both theoretical and clinical approaches to understanding and facilitating behavior change.

  18. Orientation to pollution prevention for facility design

    Energy Technology Data Exchange (ETDEWEB)

    Raney, E.A.; Whitehead, J.K.; Encke, D.B. [Westinghouse Hanford Co., Richland, WA (United States); Dorsey, J.A. [Kaiser Engineers Hanford Co., Richland, WA (United States)

    1994-01-01

    This material was developed to assist engineers in incorporating pollution prevention into the design of new or modified facilities within the U.S. Department of Energy (DOE). The material demonstrates how the design of a facility can affect the generation of waste throughout a facility`s entire life and it offers guidance on how to prevent the generation of waste during design. Contents include: Orientation to pollution prevention for facility design training course booklet; Pollution prevention design guideline; Orientation to pollution prevention for facility design lesson plan; Training participant survey and pretest; and Training facilitator`s guide and schedule.

  19. Environmental evaluation of municipal waste prevention

    International Nuclear Information System (INIS)

    Gentil, Emmanuel C.; Gallo, Daniele; Christensen, Thomas H.

    2011-01-01

    Highlights: → Influence of prevention on waste management systems, excluding avoided production, is relatively minor. → Influence of prevention on overall supply chain, including avoided production is very significant. → Higher relative benefits of prevention are observed in waste management systems relying mainly on landfills. - Abstract: Waste prevention has been addressed in the literature in terms of the social and behavioural aspects, but very little quantitative assessment exists of the environmental benefits. Our study evaluates the environmental consequences of waste prevention on waste management systems and on the wider society, using life-cycle thinking. The partial prevention of unsolicited mail, beverage packaging and food waste is tested for a 'High-tech' waste management system relying on high energy and material recovery and for a 'Low-tech' waste management system with less recycling and relying on landfilling. Prevention of 13% of the waste mass entering the waste management system generates a reduction of loads and savings in the waste management system for the different impacts categories; 45% net reduction for nutrient enrichment and 12% reduction for global warming potential. When expanding our system and including avoided production incurred by the prevention measures, large savings are observed (15-fold improvement for nutrient enrichment and 2-fold for global warming potential). Prevention of food waste has the highest environmental impact saving. Prevention generates relatively higher overall relative benefit for 'Low-tech' systems depending on landfilling. The paper provides clear evidence of the environmental benefits of waste prevention and has specific relevance in climate change mitigation.

  20. Crucial elements in suicide prevention strategies

    DEFF Research Database (Denmark)

    Nordentoft, Merete

    2011-01-01

    ; selective interventions are directed toward individuals who are at greater risk for suicidal behaviour; and indicated preventions are targeted at individuals who have already begun self-destructive behaviour. On the universal prevention level, an overview of the literature is presented with focus...... on restrictions in firearms and carbon monoxide gas. At the selective prevention level, a review of risk of suicide in homelessness and schizophrenia and risk factors for suicide in schizophrenia is conducted and possible interventions are mentioned together with the evidence for their effect. Suicide rate......Ways of conceptualizing suicide prevention are reviewed briefly, and the preventive model: Universal, Selected, and Indicated prevention (USI) is chosen as the structure for the literature review, and the discussion. Universal preventive interventions are directed toward entire population...

  1. Can prevention classification be improved by considering the function of prevention?

    Science.gov (United States)

    Foxcroft, David R

    2014-12-01

    Universal, selective and indicated forms of prevention have been adopted as improvements on previous notions of primary and secondary prevention. However, some conceptual confusion remains concerning the placing of environmental, community-based or mass media preventive interventions within this typology. It is suggested that a new dimension of functional types of prevention, namely environmental, developmental and informational prevention should be specified alongside the forms of prevention in a taxonomy matrix. The main advantage of this new taxonomy is that a matrix combining the form and function dimensions of prevention can be used to identify and map out prevention strategies, to consider where research evidence is present and where more is needed, and to evaluate the relative effectiveness of different categories and components of prevention for specific health and social issues. Such evaluations would provide empirical evidence as to whether the different categories of prevention are related to outcomes or processes of prevention in ways that suggest the value of the taxonomy for understanding and increasing the impact of prevention science. This new prevention taxonomy has been useful for conceptualising and planning prevention activities in a case study involving the Swedish National Institute for Public Health. Future work should assess (1) the robustness of this new taxonomy and (2) the theoretical and empirical basis for profiling prevention investments across the various forms and functions of prevention.

  2. 76 FR 72120 - Oil Pollution Prevention; Spill Prevention, Control, and Countermeasure (SPCC) Rule-Compliance...

    Science.gov (United States)

    2011-11-22

    ... Oil Pollution Prevention; Spill Prevention, Control, and Countermeasure (SPCC) Rule--Compliance Date... rule will be effective November 22, 2011. List of Subjects in 40 CFR Part 112 Oil pollution prevention... Regulations is amended as follows: PART 112--OIL POLLUTION PREVENTION 0 1. The authority citation for part 112...

  3. The challenge of defining standards of prevention in HIV prevention trials

    NARCIS (Netherlands)

    Philpott, Sean; Heise, Lori; McGrory, Elizabeth; Paxton, Lynn; Hankins, Catherine; Alexander, Lorraine; Apuuli, David Kihumuro; Baeten, Jared; Birx, Deborah; de Bruyn, Guy; Bukusi, Elizabeth; Burns, David; Calazans, Gabriela; Campbell, James; Caswell, Georgina; Coutinho, Alex; Dawson, Liza; Dhai, Amaboo; Dube, Samukeliso; Ecuru, Julius; Essack, Zaynab; Farley, Timothy; Gafos, Mitzy; Irungu, Pauline; Kaleebu, Pontiano; Kamali, Anatoli; Kestelyn, Evelyne; Kublin, James; Lohse, Nicolai; Lutalo, Tom; Macklin, Ruth; Mâsse, Benôıt; Mauney, Chris; McCormack, Sheena; Miller, Lori; Mfutso-Bengo, Joseph; Misra, Rajender; Muganwa, Margaret; Ndase, Patrick; Nel, Annalene; Nielsen, Leslie; Nkala, Busisiwe; O'Reilly, Kevin; Okware, Sam; Paicheler, Geneviève; Rees, Helen; Rerks-Ngarm, Supachai; Ridzon, Renee; Rosenberg, Zeda; Singh, Jerome; Sugarman, Jeremy; Taylor, Douglas; Tusubira, Evans; Ukpong, Morenike; Umulisa, Marie-Michèle; Warren, Mitchell; Slevin, Katherine West; van de Wijgert, Janneke

    2011-01-01

    As new HIV prevention tools are developed, researchers face a number of ethical and logistic questions about how and when to include novel HIV prevention strategies and tools in the standard prevention package of ongoing and future HIV prevention trials. Current Joint United Nations Programme on

  4. Fall prevention walker during rehabilitation

    Science.gov (United States)

    Tee, Kian Sek; E, Chun Zhi; Saim, Hashim; Zakaria, Wan Nurshazwani Wan; Khialdin, Safinaz Binti Mohd; Isa, Hazlita; Awad, M. I.; Soon, Chin Fhong

    2017-09-01

    This paper proposes on the design of a walker for the prevention of falling among elderlies or patients during rehabilitation whenever they use a walker to assist them. Fall happens due to impaired balance or gait problem. The assistive device is designed by applying stability concept and an accelerometric fall detection system is included. The accelerometric fall detection system acts as an alerting device that acquires body accelerometric data and detect fall. Recorded accelerometric data could be useful for further assessment. Structural strength of the walker was verified via iterations of simulation using finite element analysis, before being fabricated. Experiments were conducted to identify the fall patterns using accelerometric data. The design process and detection of fall pattern demonstrates the design of a walker that could support the user without fail and alerts the helper, thus salvaging the users from injuries due to fall and unattended situation.

  5. Magnesium in Prevention and Therapy

    Science.gov (United States)

    Gröber, Uwe; Schmidt, Joachim; Kisters, Klaus

    2015-01-01

    Magnesium is the fourth most abundant mineral in the body. It has been recognized as a cofactor for more than 300 enzymatic reactions, where it is crucial for adenosine triphosphate (ATP) metabolism. Magnesium is required for DNA and RNA synthesis, reproduction, and protein synthesis. Moreover, magnesium is essential for the regulation of muscular contraction, blood pressure, insulin metabolism, cardiac excitability, vasomotor tone, nerve transmission and neuromuscular conduction. Imbalances in magnesium status—primarily hypomagnesemia as it is seen more common than hypermagnesemia—might result in unwanted neuromuscular, cardiac or nervous disorders. Based on magnesium’s many functions within the human body, it plays an important role in prevention and treatment of many diseases. Low levels of magnesium have been associated with a number of chronic diseases, such as Alzheimer’s disease, insulin resistance and type-2 diabetes mellitus, hypertension, cardiovascular disease (e.g., stroke), migraine headaches, and attention deficit hyperactivity disorder (ADHD). PMID:26404370

  6. Prevention is better than cure

    CERN Multimedia

    Anaïs Schaeffer

    2012-01-01

    Throughout the year, members of the Safety Inspections Services section of HSE Unit devote themselves to ensuring the safety of all infrastructure and equipment that represent a specific hazard within the Organization. They regularly comb through all CERN's infrastructure to forestall any accidents and their potential impact, true to the adage that prevention is better than cure.   This site has a few (!) slight safety problems... Spot the mistakes! (Details of the game below.) Ensuring that an HV electrical installation is properly earthed, that a system under pressure has no weak points, that an item of lifting equipment can be used without risk, that safety valves operate at the right pressure threshold as well as checking that a heavy object that could inflict injury if it fell is not stored on top of a cupboard: such are the types of inspections performed by the Safety Inspection Service (DGS-SEE-SIS). "These checks reassure those in charge of equipment and infrastruct...

  7. City planning as preventive medicine.

    Science.gov (United States)

    Corburn, Jason

    2015-08-01

    The health and well-being of rapidly growing urban populations is a global health issue. Cities in the global north and south are faced with rising health inequities - or avoidable differences in health determinants and outcomes based on place, social status and ethnicity. This commentary suggests that focusing only on treatment interventions in cities is likely to fail because populations will be forced to go back into the urban living and working conditions that likely made them sick in the first place. City planning as preventive medicine includes taking a relational and systems approach to urban health, requiring health assessments for all urban policy making, promoting neighborhood health centers as engines of community economic development and gathering place-based health indicator data to track progress and adapt interventions over time as conditions change. Copyright © 2015 Elsevier Inc. All rights reserved.

  8. Fall prevention in nursing homes

    DEFF Research Database (Denmark)

    Andresen, Mette; Hauge, Johnny

    2014-01-01

    that the number of hospitalization after a fall injury will become an even greater task for the Danish hospitals, The aim of the study was to show if there is a relationship between physically frail elderly nursing home resident’s subjective evaluation of fall-risk and an objective evaluation of their balance....... Further, to suggest tools for fall prevention in nursing home settings on the basis of the results of this study and the literature. A quantitative method inspired by the survey method was used to give an overview of fall patterns, subjective and objective evaluations of fallrisk. Participants were 16...... physically frail elderly nursing home residents from three different nursing homes. Measures: a small staff-questionnaire about incidences and places where the participants had falling-episodes during a 12 month period, The Falls Effi cacy Scale Swedish version (FES(S)) and Berg Balance Scale (BBS) Results...

  9. Skin cancer prevention in Australia.

    Science.gov (United States)

    Sinclair, C; Foley, P

    2009-11-01

    Australia has one of the highest skin cancer incidence and mortality rates in the world. The reason for these high rates is due in part to the high ambient UV radiation levels, combined with a predominantly susceptible fair-skinned population. To address this problem, since 1980 Australians have been exposed to social marketing campaigns to raise awareness of skin cancer prevention. These campaigns have used mass media alongside interventions in schools, workplaces, and in community and leisure settings to motivate sun protective behaviour. As a result of these interventions it can be demonstrated that social marketing campaigns can be a very effective method to not only motivate behaviour change, reduce sunburn, and increase awareness but more importantly, reduce melanoma rates and bring positive economic returns to government. However long term investment in this area is required otherwise any population gains in behaviour are very likely to be quickly eroded.

  10. Magnesium in Prevention and Therapy

    Directory of Open Access Journals (Sweden)

    Uwe Gröber

    2015-09-01

    Full Text Available Magnesium is the fourth most abundant mineral in the body. It has been recognized as a cofactor for more than 300 enzymatic reactions, where it is crucial for adenosine triphosphate (ATP metabolism. Magnesium is required for DNA and RNA synthesis, reproduction, and protein synthesis. Moreover, magnesium is essential for the regulation of muscular contraction, blood pressure, insulin metabolism, cardiac excitability, vasomotor tone, nerve transmission and neuromuscular conduction. Imbalances in magnesium status—primarily hypomagnesemia as it is seen more common than hypermagnesemia—might result in unwanted neuromuscular, cardiac or nervous disorders. Based on magnesium’s many functions within the human body, it plays an important role in prevention and treatment of many diseases. Low levels of magnesium have been associated with a number of chronic diseases, such as Alzheimer’s disease, insulin resistance and type-2 diabetes mellitus, hypertension, cardiovascular disease (e.g., stroke, migraine headaches, and attention deficit hyperactivity disorder (ADHD.

  11. Preventive vaccines for cervical cancer

    Directory of Open Access Journals (Sweden)

    WHEELER COSETTE M

    1997-01-01

    Full Text Available The potential use of vaccines for the human papillomavirus (HPV in the prevention and treatment of cervical cancer is a possibility in the near future. Close to 20 genotypes of HPV, of the 75 that have been identified, infect the femine genital tract, but four subtypes (16, 18, 31 and 45 have been associated in close to 80% of cervical cancers. this article proposes that in order to design an effective prophylactic vaccine against HPV infection, an adequate immune response should be guaranteed through four goals; a activation of antigens present in the cell; b overcoming the host response and viral genetic variability in the T cell response; c generation of high levels of T and B memory cells; and d persistence of antigens.

  12. Air pollution: impact and prevention.

    Science.gov (United States)

    Sierra-Vargas, Martha Patricia; Teran, Luis M

    2012-10-01

    Air pollution is becoming a major health problem that affects millions of people worldwide. In support of this observation, the World Health Organization estimates that every year, 2.4 million people die because of the effects of air pollution on health. Mitigation strategies such as changes in diesel engine technology could result in fewer premature mortalities, as suggested by the US Environmental Protection Agency. This review: (i) discusses the impact of air pollution on respiratory disease; (ii) provides evidence that reducing air pollution may have a positive impact on the prevention of disease; and (iii) demonstrates the impact concerted polices may have on population health when governments take actions to reduce air pollution. © 2012 The Authors. Respirology © 2012 Asian Pacific Society of Respirology.

  13. Preventive Ethics Through Expanding Education.

    Science.gov (United States)

    Ho, Anita; MacDonald, Lisa Mei-Hwa; Unger, David

    2016-03-01

    Healthcare institutions have been making increasing efforts to standardize consultation methodology and to accredit both bioethics training programs and the consultants accordingly. The focus has traditionally been on the ethics consultation as the relevant unit of ethics intervention. Outcome measures are studied in relation to consultations, and the hidden assumption is that consultations are the preferred or best way to address day-to-day ethical dilemmas. Reflecting on the data from an internal quality improvement survey and the literature, we argue that having general ethics education as a key function of ethics services may be more important in meeting the contemporaneous needs of acute care settings. An expanded and varied ethics education, with attention to the time constraints of healthcare workers' schedules, was a key recommendation brought forward by survey respondents. Promoting ethical reflection and creating a culture of ethics may serve to prevent ethical dilemmas or mitigate their effects.

  14. Cardiovascular Prevention of Cognitive Decline

    Directory of Open Access Journals (Sweden)

    Jean-Jacques Monsuez

    2011-01-01

    Full Text Available Midlife cardiovascular risk factors, including diabetes, hypertension, dyslipemia, and an unhealthy lifestyle, have been linked to subsequent incidence, delay of onset, and progression rate of Alzheimer disease and vascular dementia. Conversely, optimal treatment of cardiovascular risk factors prevents and slows down age-related cognitive disorders. The impact of antihypertensive therapy on cognitive outcome in patients with hypertension was assessed in large trials which demonstrated a reduction in progression of MRI white matter hyperintensities, in cognitive decline and in incidence of dementia. Large-scale database correlated statin use and reduction in the incidence of dementia, mainly in patients with documented atherosclerosis, but clinical trials failed to reach similar conclusions. Whether a multitargeted intervention would substantially improve protection, quality of life, and reduce medical cost expenditures in patients with lower risk profile has not been ascertained. This would require appropriately designed trials targeting large populations and focusing on cognitive decline as a primary outcome endpoint.

  15. [Ankle braces prevent ligament injuries].

    Science.gov (United States)

    Karlsson, Jon

    2002-09-05

    The Cochrane collaboration has performed a meta-analysis of all studies found on the prevention of ankle ligament injuries, frequent in sports like soccer, European handball and basketball. Interventions include the use of modified footwear and associated supports, training programmes and health education. Five randomized trials totalling 3,954 participants were included. With the exception of ankle disc training, all prophylactic interventions entailed the application of an external ankle support in the form of a semi-rigid orthosis, air-cast or high top shoes. The studies showed a significant reduction in the number of ankle sprains in individuals allocated to external ankle support. This reduction was greater for those with a previous history of ankle sprains.

  16. Preventing the recurrence of maltreatment.

    Science.gov (United States)

    Carnochan, Sarah; Rizik-Baer, Daniel; Austin, Michael J

    2013-01-01

    In the context of the federal child welfare performance measurement system, recurrence of maltreatment refers to circumstances in which children that have previously been substantiated as victims of abuse or neglect experience another incident of substantiated maltreatment. Multiple episodes of maltreatment can lead to: (1) more serious short and long term negative consequences, (2) entry into the juvenile justice system, and (3) juvenile delinquency. In this literature review the authors summarize the research on child, family, and systemic factors related to maltreatment recurrence and promising practices for improving performance. Promising practices aimed at preventing recurrence of maltreatment include interventions at multiple levels (e.g., the child, caregiver, family, and agency) and include a range of service modalities.

  17. Counterforce applied to prevent spalling

    Energy Technology Data Exchange (ETDEWEB)

    Glamheden, Rune; Bergkvist, Lars (Golder Associates AB (Sweden)); Faelth, Billy (Clay Technology AB, Lund (Sweden)); Jacobsson, Lars (SP Technical Research Institute of Sweden, Boraas (Sweden)); Harrstroem, Johan (Geosigma AB, Uppsala (Sweden)); Berglund, Johan (Vattenfall Power Consultant AB, Stockholm (Sweden))

    2010-04-15

    The field experiment within CAPS (Counterforce Applied to Prevent Spalling) was initiated to determine if the application of dry bentonite pellets is sufficient to suppress thermally-induced spalling in KBS-3 deposition holes. The experience gained from Aespoe Pillar Stability Experiment, conducted between 2002 and 2006, indicated that spalling could be controlled by the application of a small confining pressure in the deposition holes. The CAPS field experiment that included four pairs of boreholes with a diameter of approximately 0.5 m, was carried out as a series of demonstration experiments in the TASQ-tunnel. The first and second heating tests were performed in open holes, without any confining pressure on the borehole wall and the third and fourth heating tests with a confining pressure created by expanded clay pellets (LECA). The first heating test was initiated at the end of August 2008 and the final test was finished at the end of May 2009. The trials suggest that the small confining pressure offered by the LECA pellets was adequate to control spalling and prevent the formation of a highly conductive zone of fractured rock in the 500-mm-diameter holes. It is recommended that a full-scale test be carried out to assess if the findings are applicable to 1,750-mm-diameter deposition holes. Should the full scale tests support the findings from these initial trials, filling the gap between the bentonite blocks and rock wall with dry bentonite pellets will provide a viable engineered solution for controlling the effects of thermally induced spalling in the KBS-3 deposition holes

  18. Approaches to adolescent pregnancy prevention.

    Science.gov (United States)

    Haffner, D; Casey, S

    1986-09-01

    The US has one of the highest teenage pregnancy rates in the industrialized world, over 1,000,000 a year. This can add to social problems including poverty, unemployment, family breakup, juvenile crime, school dropouts, and child abuse. In several studies various approaches have been developed and it is concluded that teens must not only be given the knowledge to avoid teen pregnancies, but the motivation to do so. Sex education is an important part of pregnancy prevention, but few programs go beyond the facts of reproduction and less than 14% of them are 40 hours long. Studies have shown mixed results as to the effect of education on teen pregnancy. There are many programs that have been developed by different communities, including computer programs and youth service agencies. Religious groups also play an important part in sex education and they have some distinct advantages in affecting teens' sexual values and activities. Education programs for teen's parents appear to be very important since studies show when sexuality is discussed at home, the teens begin activity later and use birth control more. Clinics have had difficulty recruiting and retaining teen patients and devote special attention to establishing a rapport with them. The school-based clinic is becoming increasingly popular and can provide birth control counseling, contraceptives, family planning clinic referral, examinations, pregnancy testing, and prenatal care. There success is due to confidentiality, convenience, and comprehensive service. However, since nearly all efforts on teen pregnancy prevention are directed at girls, 1/2 of those involved in teen pregnancies--males--are not participating in programs. This must change for longterm success of these programs and also the involvement of the community and media.

  19. Childhood Leukemia and Primary Prevention

    Science.gov (United States)

    Whitehead, Todd P.; Metayer, Catherine; Wiemels, Joseph L.; Singer, Amanda W.; Miller, Mark D.

    2016-01-01

    Leukemia is the most common pediatric cancer, affecting 3,800 children per year in the United States. Its annual incidence has increased over the last decades, especially among Latinos. Although most children diagnosed with leukemia are now cured, many suffer long-term complications, and primary prevention efforts are urgently needed. The early onset of leukemia – usually before age five – and the presence at birth of “pre-leukemic” genetic signatures indicate that pre- and postnatal events are critical to the development of the disease. In contrast to most pediatric cancers, there is a growing body of literature – in the United States and internationally – that has implicated several environmental, infectious, and dietary risk factors in the etiology of childhood leukemia, mainly for acute lymphoblastic leukemia, the most common subtype. For example, exposures to pesticides, tobacco smoke, solvents, and traffic emissions have consistently demonstrated positive associations with the risk of developing childhood leukemia. In contrast, intake of vitamins and folate supplementation during the pre-conception period or pregnancy, breastfeeding, and exposure to routine childhood infections have been shown to reduce the risk of childhood leukemia. Some children may be especially vulnerable to these risk factors, as demonstrated by a disproportionate burden of childhood leukemia in the Latino population of California. The evidence supporting the associations between childhood leukemia and its risk factors – including pooled analyses from around the world and systematic reviews – is strong; however, the dissemination of this knowledge to clinicians has been limited. To protect children’s health, it is prudent to initiate programs designed to alter exposure to well-established leukemia risk factors rather than to suspend judgement until no uncertainty remains. Primary prevention programs for childhood leukemia would also result in the significant co

  20. School-based secondary prevention programmes for preventing violence.

    Science.gov (United States)

    Mytton, J; DiGuiseppi, C; Gough, D; Taylor, R; Logan, S

    2006-07-19

    Early aggressive behaviour is a risk factor for later violence and criminal behaviour. Despite over 20 years of violence prevention interventions being delivered in the school setting, questions remain regarding the effectiveness of different interventions for children exhibiting aggressive behaviour. To examine the effect of school based violence prevention programmes for children identified as aggressive or at risk of being aggressive. We searched CENTRAL, Cochrane Injuries Group specialised register, MEDLINE, EMBASE, other specialised databases and reference lists of articles. We also contacted authors and organisations to identify any further studies. We included trials meeting the following criteria; 1) participants were randomly assigned to intervention and control groups; 2) outcome data were collected concurrently; 3) participants comprised children in mandatory education identified as exhibiting, or at risk of, aggressive behaviour; 4) interventions designed to reduce aggression, violence, bullying, conflict or anger; 5) school based interventions; 6) outcomes included aggressive behaviour, school and agency responses to acts of aggression, or violent injuries. Data were collected on design, participants, interventions, outcomes and indicators of study quality. Results of any intervention to no intervention were compared immediately post-intervention and at 12 months using meta-analysis where appropriate. Of 56 trials identified, none reported data on violent injuries. Aggressive behaviour was significantly reduced in intervention groups compared to no intervention groups immediately post intervention in 34 trials with data, (Standardised Mean Difference (SMD) = -0.41; 95% confidence interval (CI) -0.56 to -0.26). This effect was maintained in the seven studies reporting 12 month follow-up (SMD = -0.40, (95% CI -0.73 to -0.06)). School or agency disciplinary actions in response to aggressive behaviour were reduced in intervention groups for nine trials