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Sample records for british laser standard

  1. Manual of engineering drawing to British and international standards

    CERN Document Server

    Simmons, Colin H; Maguire, Dennis E

    2004-01-01

    The Manual of Engineering Drawing has long been recognised as the student and practising engineer's guide to producing engineering drawings that comply with ISO and British Standards. The information in this book is equally applicable to any CAD application or manual drawing. The second edition is fully in line with the requirements of the new British Standard BS8888: 2002, and will help engineers, lecturers and students with the transition to the new standards.BS8888 is fully based on the relevant ISO standards, so this book is also ideal for an international readership. The comprehen

  2. Biological bases of the maximum permissible exposure levels of the UK laser standard BS 4803 1983

    CERN Document Server

    MacKinlay, Alistair F

    1983-01-01

    The use of lasers has increased greatly over the past 15 years or so, to the extent that they are now used routinely in many occupational and public situations. There has been an increasing awareness of the potential hazards presented by lasers and substantial efforts have been made to formulate safety standards. In the UK the relevant Safety Standard is the British Standards Institution Standard BS 4803. This Standard was originally published in 1972 and a revision has recently been published (BS 4803: 1983). The revised standard has been developed using the American National Standards Institute Standard, ANSI Z136.1 (1973 onwards), as a model. In other countries, national standards have been similarly formulated, resulting in a large measure of international agreement through participation in the work of the International Electrotechnical Commission (IEC). The bases of laser safety standards are biophysical data on threshold injury effects, particularly on the retina, and the development of theoretical mode...

  3. Can British Columbia Achieve Electricity Self-Sufficiency and Meet its Renewable Portfolio Standard?

    NARCIS (Netherlands)

    Sopinka, A.; Kooten, van G.C.; Wong, L.

    2012-01-01

    British Columbia’s energy policy is at a crossroads; the province has set a goal of electricity self-sufficiency, a 93% renewable portfolio standard and provincial natural gas strategy that could increase electricity consumption by 2,500-3,800 MW. To ascertain the reality of BC’s supply position, we

  4. British Thoracic Society Quality Standards for acute non-invasive ventilation in adults

    Science.gov (United States)

    Davies, Michael; Allen, Martin; Bentley, Andrew; Bourke, Stephen C; Creagh-Brown, Ben; D’Oliveiro, Rachel; Glossop, Alastair; Gray, Alasdair; Jacobs, Phillip; Mahadeva, Ravi; Moses, Rachael; Setchfield, Ian

    2018-01-01

    Introduction The purpose of the quality standards document is to provide healthcare professionals, commissioners, service providers and patients with a guide to standards of care that should be met for the provision of acute non-invasive ventilation in adults together with measurable markers of good practice. Methods Development of British Thoracic Society (BTS) Quality Standards follows the BTS process of quality standard production based on the National Institute for Health and Care Excellence process manual for the development of quality standards. Results 6 quality statements have been developed, each describing a standard of care for the provision of acute non-invasive ventilation in the UK, together with measurable markers of good practice. Conclusion BTS Quality Standards for acute non-invasive ventilation in adults form a key part of the range of supporting materials that the Society produces to assist in the dissemination and implementation of guideline’s recommendations. PMID:29636979

  5. Laser photothermal diagnostics of genuine and counterfeit British and United States banknotes

    Science.gov (United States)

    Othonos, Andreas; Mandelis, Andreas; Nestoros, Marios; Christofides, Constantinos

    1997-02-01

    Laser-induced, frequency-scanned IR photothermal radiometry was used to investigate the thermophysical properties of the paper on which several genuine and counterfeit British (10 pounds) and U.S. ($DOL50, $DOL100) currency bills were printed. The radiometric photothermal amplitudes and phases were further compared with a theoretical model, which yielded simultaneous quantitative measurements of the thermal diffusivities and conductivities of the bills. Both statistical and single-specimen results demonstrated the excellent thermophysical resolution of the technique with prospects for its use in the nonintrusive, on-line identification of counterfeit banknotes.

  6. Application of the British Food Standards Agency nutrient profiling system in a French food composition database.

    Science.gov (United States)

    Julia, Chantal; Kesse-Guyot, Emmanuelle; Touvier, Mathilde; Méjean, Caroline; Fezeu, Léopold; Hercberg, Serge

    2014-11-28

    Nutrient profiling systems are powerful tools for public health initiatives, as they aim at categorising foods according to their nutritional quality. The British Food Standards Agency (FSA) nutrient profiling system (FSA score) has been validated in a British food database, but the application of the model in other contexts has not yet been evaluated. The objective of the present study was to assess the application of the British FSA score in a French food composition database. Foods from the French NutriNet-Santé study food composition table were categorised according to their FSA score using the Office of Communication (OfCom) cut-off value ('healthier' ≤ 4 for foods and ≤ 1 for beverages; 'less healthy' >4 for foods and >1 for beverages) and distribution cut-offs (quintiles for foods, quartiles for beverages). Foods were also categorised according to the food groups used for the French Programme National Nutrition Santé (PNNS) recommendations. Foods were weighted according to their relative consumption in a sample drawn from the NutriNet-Santé study (n 4225), representative of the French population. Classification of foods according to the OfCom cut-offs was consistent with food groups described in the PNNS: 97·8 % of fruit and vegetables, 90·4 % of cereals and potatoes and only 3·8 % of sugary snacks were considered as 'healthier'. Moreover, variability in the FSA score allowed for a discrimination between subcategories in the same food group, confirming the possibility of using the FSA score as a multiple category system, for example as a basis for front-of-pack nutrition labelling. Application of the FSA score in the French context would adequately complement current public health recommendations.

  7. TESTING OF CONCRETE PAVING BLOCKS THE BS EN 1338:2003 BRITISH AND EUROPEAN STANDARD CODE

    Directory of Open Access Journals (Sweden)

    Purwanto Purwanto

    2012-02-01

    Full Text Available Concrete paving blocks are the choice for road and urban road’s surfacing. Besides their ease inapplication, they also provide design freedom by coloring off the material.Of major importance is their compression strength. The Indonesian SNI categorizes strength to theirpurposes i.e., for parking areas, pedestrian walking areas and heavy industrial estates.According to the SNI 03 – 0691 -1989 and British Standard BS 6717:1986 the strength of a paving blockis determined by the maximum carrying capacity under distributed load. The blocks are placed under acompression apparatus, and the compression strength at failure is recorded.As being observed in the field paving block’s failure pattern differs as to the failure under distributedloading. The paving’s failure mode is distinguished by a bending failure plain at the smallest crosssection.The BS EN 1338 code proposes a different approach. This paper will discuss the methods being used inthe BS EN 1338 code, and evaluates the effectiveness of Indonesian standards to date.

  8. 78 FR 37723 - Laser Products; Proposed Amendment to Performance Standard

    Science.gov (United States)

    2013-06-24

    ... free-air communication peripherals, bar code scanners, cutting and welding tools, and laser speed... incorporate subclause 4.14.2 of IEC 60825-1:2007, but instead require that the protective housing of laser... move to lower classes under the harmonized standard. Class IV lasers, such as those used for cutting...

  9. Green lasers are beyond power limits mandated by safety standards.

    Science.gov (United States)

    Lee, M H; Fox, K; Goldwasser, S; Lau, D W M; Aliahmad, B; Sarossy, M

    2016-08-01

    There has been an increasing number of reports of people losing vision from laser exposure from pocket laser pointers despite the safety limit of 1 milliwatt (1mW) imposed by the Australian government. We hypothesize that this is because commercially available red and green laser pointers are exceeding their labeled power outputs. We tested the power outputs of 4 red and 4 green lasers which were purchased for less than AUD$30 each. The average of 10 measurements was recorded for each laser. We found that 3 out of 4 red lasers conformed to the 1mW safety standard; in contrast, all of the green lasers exceeded this limit, with one of the lasers recording an output of 127.9 mW. This contrast in compliance is explained by the construction of these lasers - green lasers are typically Diode Pumped Solid State (DPSS) lasers that can emit excessive infrared (IR) radiation with poor workmanship or inconsistent adherence to practices of safe design and quality control; red lasers are diode lasers which have limited power outputs due to `Catastrophic Optical Damage' (COD). Relevant professional bodies ought to advocate more strongly for stringent testing, quality control and licensing of DPSS lasers with a view towards government intervention to banning green laser pointer use.

  10. A Simplified Laser and Optics System for Laser-Cooled RB Fountain Frequency Standards

    National Research Council Canada - National Science Library

    Kunz, P. D; Heavner, T. P; Jefferts, S. R

    2007-01-01

    ...) atomic fountain frequency standard. This system uses DFB (Distributed Feedback) diode lasers and a frequency offset-locking scheme to generate the optical frequencies needed for laser-cooling, launching, post-cooling, and detection of Rb atoms...

  11. A Tale of Two Climate Policies: Political Economy of British Columbia's Carbon Tax and Clean Electricity Standard

    OpenAIRE

    Ekaterina Rhodes; Mark Jaccard

    2013-01-01

    In 2007-08, British Columbia implemented two significant climate policies: the first broadly based carbon tax and the first almost 100-percent "clean" electricity standard in North America. We describe the key design characteristics of these policies and analyse them against the criteria of greenhouse gas (GHG) emissions reductions, economic efficiency, administrative feasibility, and public acceptance. We find that the clean electricity standard is estimated to reduce four to six times more ...

  12. British Standard method for determining the luminance distribution of electro-optical x-ray image intensifiers

    International Nuclear Information System (INIS)

    1982-01-01

    Under the direction of the Light Electrical Engineering Standards Committee, a British Standard method has been prepared for determining the luminance distribution of electro-optical X-ray image intensifiers. The luminance distribution is determined from the measurement of the luminance over the area of the output image related to conditions of uniform exposure rate in the entrance plane of an electro-optical X-ray image intensifier. (U.K.)

  13. Curriculum guidelines and standards for dental laser education

    Science.gov (United States)

    White, Joel M.

    1999-05-01

    This paper reports on the revision of the Curriculum Guidelines and Standards for Dental Laser Education. The original Guidelines were developed at a workshop at the University of California, San Francisco School of Dentistry in 1992, presented at the January 1993 SPIE symposium, and published in SPIE Proceedings Vol. 1880. They have since been endorsed and implemented worldwide. The Guidelines define the standard of education for practitioners who use lasers, with a goal to enhance of student and practitioner understanding and knowledge of laser technology applications in dentistry. Four levels of education are outlined. Introductory Courses are designed to provide general information on lasers in dentistry. They are informational, without an assessment of the student's proficiency in laser use. Standard Proficiency, Advanced Proficiency, and Educator Courses have specific educational goals, behavioral objectives, and examinations of proficiency. Standard Proficiency Courses prove a basic level of education with didactic, laboratory, and clinical exercises to be satisfactorily completed before using laser clinically. Advanced Proficiency Courses increase this level of education to include a clinical case study requirement. Educator Courses define requirements for instructors of laser education in dentistry. Revision of the Guidelines ensures that they keep pace with technological developments and research findings.

  14. Comparison Between NIST and AF Laser Energy Standards Using High Power Lasers.

    Science.gov (United States)

    Li, Xiaoyu; Scott Retired, Thomas; Cromer, Chris; Cooper, David; Comisford, Steven

    2007-01-01

    We report the results of a high-energy laser calorimeter comparison conducted by the National Institute of Standards and Technology (NIST), Boulder, Colorado and the U.S. Air Force Primary Standards laboratory (AFPSL), Heath, Ohio. A laser power meter, used as a transfer standard, was calibrated at each laboratory, sequentially, and the measurement results were compared. These measurements were performed at a nominal power of 800 W and a wavelength of 10.6 μm using CO2 lasers. Excellent measurement agreement (1.02 %) was demonstrated, which was well within each of the expanded uncertainties from the two laboratories involved in this comparison.

  15. F2 slope as a Perceptual Cue for the Front-Back Contrast in Standard Southern British English.

    Science.gov (United States)

    Chládková, Kateřina; Hamann, Silke; Williams, Daniel; Hellmuth, Sam

    2017-09-01

    Acoustic studies of several languages indicate that second-formant (F2) slopes in high vowels have opposing directions (independent of consonantal context): front [iː]-like vowels are produced with a rising F2 slope, whereas back [uː]-like vowels are produced with a falling F2 slope. The present study first reports acoustic measurements that confirm this pattern for the English variety of Standard Southern British English (SSBE), where /uː/ has shifted from the back to the front area of the vowel space and is now realized with higher midpoint F2 values than several decades ago. Subsequently, we test whether the direction of F2 slope also serves as a reliable cue to the /iː/-/uː/ contrast in perception. The findings show that F2 slope direction is used as a cue (additional to midpoint formant values) to distinguish /iː/ from /uː/ by both young and older Standard Southern British English listeners: an otherwise ambiguous token is identified as /iː/ if it has a rising F2 slope and as /uː/ if it has a falling F2 slope. Furthermore, our results indicate that listeners generalize their reliance on F2 slope to other contrasts, namely /ɛ/-/ɒ/ and /æ/-/ɒ/, even though F2 slope is not employed to differentiate these vowels in production. This suggests that in Standard Southern British English, a rising F2 seems to be perceptually associated with an abstract feature such as [+front], whereas a falling F2 with an abstract feature such as [-front].

  16. Design reinforced concrete structures: Differences in procedure, formula, and results between Eurocode 2 and British Standard 8110

    Science.gov (United States)

    Rahim, Mustaqqim Abdul; Ying, Lum Chui; Shahidan, Shahiron; Ghazaly, Zuhayr Md.; Anudai, Shamilah; Bawadi, Nor Faizah; Isa, Nur Fitriah; Hassan, Zulkarnain; Habulat, Afifuddin; Ismail, Zul-Atfi

    2017-09-01

    This research is mainly about comparisons of reinforced concrete structure design based on Eurocode 2 and British Standard 8110. The reinforcement concrete element is designed by referring Eurocode 2 (EN1992-1-1) and British Standard 8110 (BS8110-1:1997) for comparing purpose. The work examples of the structural elements has been done in this research to obtain the area of reinforcement required. The differences in procedure, formula and result of area of steel required for the elements based on both of the codes are compared and tabulated. In this research, there are five part of reinforced concrete structure elements are designed which are continuous beams, one way slabs, braced and short column, pile cap, and cantilever retaining wall. From the result acquired, it shows that area of reinforcement required based on EC 2 is lesser than BS 8110 and the dimension required based on BS8110 is larger than EC 2. Meanwhile, the design based on Eurocode 2 came out with more economical structural elements compare to BS 8110 as lesser steel and concrete volume required.

  17. Temporal response of laser power standards with natural convective cooling.

    Science.gov (United States)

    Xu, Tao; Gan, Haiyong; Yu, Jing; Zang, Erjun

    2016-01-25

    Laser power detectors with natural convective cooling are convenient to use and hence widely applicable in a power range below 150 W. However, the temporal response characteristics of the laser power detectors need to be studied in detail for accurate measurement. The temporal response based on the absolute laser power standards with natural convective cooling is studied through theoretical analysis, numerical simulations, and experimental verifications. Our results show that the response deviates from a single exponential function and that an ultimate response balance is difficult to achieve because the temperature rise of the heat sink leads to continuous increase of the response. To determine the measurement values, an equal time reading method is proposed and validated by the laser power calibrations.

  18. Lasers for vascular lesions: Standard guidelines of care

    Directory of Open Access Journals (Sweden)

    C R Srinivas

    2011-01-01

    Full Text Available Introduction: Lasers are a good therapeutic tool for congenital and acquired vascular lesions. Technological advances in lasers have reduced the adverse effects and increased the efficacy. Machines: Among the various lasers used for treating vascular lesions, pulsed dye laser (PDL has the best efficacy and safety data. The other machines that are widely available are Nd:YAG laser and intense pulse light (IPL. Rationale and scope of guideline: Much variation exists in different machines and techniques, and therefore, establishing standard guidelines has limitations. The guidelines recommended here indicate minimum standards of care for lasers on vascular lesions based on current evidence. Physician Qualification: Laser may be administered by a dermatologist, who has received adequate background training in lasers during post-graduation or later at a center that provides education and training in lasers, or in focused workshops, which provide such trainings. He/she should have adequate knowledge of the lesions being treated, machines, parameters, cooling systems, and aftercare. Facility: The procedure may be performed in the physician′s minor procedure room with adequate laser safety measures. Indications: PWS, hemangioma, facial telangiectasia, rosacea, spider angioma, pyogenic granuloma, venous lakes, leg veins. Contraindications: Absolute: Active local infection, photo-aggravated skin diseases, and medical conditions. Relative: Unstable vitiligo, psoriasis, keloid and keloidal tendencies, patient on isotretinoin, patient who is not cooperative or has unrealistic expectation. Patient Selection: Patient selection should be done after detailed counseling with respect to the course of lesions, different treatment options, possible results, cost, need for multiple treatments, and possible postoperative complications. Treatment Sessions: The number of treatments per lesion varies from 2 to 12 or more at 6-8 week intervals. All lesions may not clear

  19. British Standard method for determination of ISO speed and average gradient of direct-exposure medical and dental radiographic film/process combinations

    International Nuclear Information System (INIS)

    1983-01-01

    Under the direction of the Cinematography and Photography Standards Committee, a British Standard method has been prepared for determining ISO speed and average gradient of direct-exposure medical and dental radiographic film/film-process combinations. The method determines the speed and gradient, i.e. contrast, of the X-ray films processed according to their manufacturer's recommendations. (U.K.)

  20. [Food Security in Europe: comparison between the "Hygiene Package" and the British Retail Consortium (BRC) & International Food Standard (IFS) protocols].

    Science.gov (United States)

    Stilo, A; Parisi, S; Delia, S; Anastasi, F; Bruno, G; Laganà, P

    2009-01-01

    The birth of Hygiene Package and of the Reg. CE no 2073/2005 in the food production field signalled a change in Italy. This process started in Italy in 1997 with the legislative decree no 155 on Self-control but in reality, it was implemented in the UK in 1990 with the promulgation of the Food Safety Act. This legal act was influenced by some basic rules corresponding to the application of HACCP standards. Since 1990 the British chains of distribution (Retailers) have involved all aspects of the food line in this type of responsibility. Due to this growing awareness for a need for greater regulation, a protocol, edited by British Retail Consortium was created in 1998. This protocol acted as a "stamp" of approval for food products and it is now known as the BRC Global Food Standard. In July 2008, this protocol became effective in its fifth version. After the birth of BRC, also French and German Retailers have established a standard practically equivalent and perhaps more pertinent to safety food, that is International Food Standard (IFS). The new approach is specific to the food field and strictly applies criteria which will ensure "safety, quality and legality" of food products, similarly to ISO 22000:2005 (mainly based on BRC & IFS past experiences). New standards aim to create a sort of green list with fully "proper and fit" Suppliers only, because of comprehensible exigencies of Retailers. It is expected, as we have shown, that Auditor authorities who are responsible for ensuring that inspections are now carried out like the Hygiene Package, will find these new standards useful. The advantages of streamlining this system is that it will allow enterprises to diligently enforce food safety practices without fear of upset or legal consequence, to improve the quality (HACCP) of management & traceability system; to restrict wastes, reprocessing and withdrawal of products. However some discordances about the interpretation of certain sub-field norms (e.g., water

  1. Manual of engineering drawing technical product specification and documentation to British and international standards

    CERN Document Server

    Simmons, Colin H; Simmons, Colin

    2012-01-01

    Manual of Engineering Drawing is a comprehensive guide for experts and novices for producing engineering drawings and annotated 3D models that meet the recent BSI and ISO standards of technical product documentation and specifications. This fourth edition of the text has been updated in line with recent standard revisions and amendments. The book has been prepared for international use, and includes a comprehensive discussion of the fundamental differences between the ISO and ASME standards, as well as recent updates regarding legal components, such as copyright, patents, and other legal considerations. The text is applicable to CAD and manual drawing, and it covers the recent developments in 3D annotation and surface texture specifications. Its scope also covers the concepts of pictorial and orthographic projections, geometrical, dimensional and surface tolerancing, and the principle of duality. The text also presents numerous examples of hydraulic and electrical diagrams, applications, bearings, adhesives, ...

  2. A composite perspective on British living standards during the Industrial Revolution

    NARCIS (Netherlands)

    Gallardo Albarrán, Daniel

    2016-01-01

    Few topics in economic history have received more attention than the profound transformations undergone by Great Britain during the 18th and 19th century. Even though the positive outcomes of this process for human living standards nowadays are not disputed, the same does not apply to the century

  3. Spectral properties of iodine cells for laser standards

    Science.gov (United States)

    Hrabina, Jan; Šarbort, Martin; Acef, Ouali; Du Burck, Frédéric; Chiodo, Nicola; Chea, Erick; Holá, Miroslava; Číp, Ondřej; Lazar, Josef

    2014-12-01

    The main aim of this work is oriented towards preparation and spectral properties evaluation of optical frequency references for laser standards - molecular iodine cells. These references represent the crucial part of setups for practical realization of the meter unit - highly stable laser standards. Furthermore, not only in the most precise laboratory instruments, but also in less demanding interferometric measuring setups the frequency stabilization of the lasers throught the absorption in suitable media ensure the direct traceability to the fundamental standard of length. A set of absorption cells filled with different amounts of molecular iodine (different saturation pressure point of absorption media) was prepared and an agreement between expected and resulting spectral properties of these cells was observed and evaluated. The usage of borosilicate glass instead of common fused silica as a material for cells bodies represents an approach to simplify the manufacturing technology process and also reduces the overall cell costs. A great care must be taken to control/avoid the risk of absorption media contamination by impurities releasing from the cell walls. We introduce an iodine purity and spectral properties evaluation method based on measurement of linewidth of the hyperfine transitions. The proposed method was used for verification of great iodine purity of manufactured cells by comparison of spectral properties with cells traditionally made of fused silica glass with well known iodine purity. The results confirmed a great potential of proposed approaches.

  4. Soil texture analysis by laser diffraction - standardization needed

    DEFF Research Database (Denmark)

    Callesen, Ingeborg; Palviainen, M.; Kjønaas, O. Janne

    2017-01-01

    Soil texture is a central soil quality property. Laser diffraction (LD) for determination of particle size distribution (PSD) is now widespread due to easy analysis and low cost. However, pretreatment methods and interpretation of the resulting soil PSD’s are not standardized. Comparison of LD data...... and many newer; ISO 13320:2009). PSD uncertainty caused by pretreatments and PSD bias caused by plate-shaped clay particles still calls for more method standardization work. If LD is used more generally, new pedotransfer functions for other soil properties (e.g water retention) based on sieving...

  5. Standard guidelines of care: Lasers for tattoos and pigmented lesions

    Directory of Open Access Journals (Sweden)

    Aurangabadkar Sanjeev

    2009-08-01

    Full Text Available Introduction: Lasers have revolutionized the treatment of pigmentary disorders and have become the mainstay of therapy for many of them. Machines: Though different laser machines are used, Quality-switched (QS lasers are considered as the gold standard for treatment of pigmented lesions. Proper knowledge of the physics of laser machine, methodology, dosage schedules, etc., is mandatory. Physician Qualification: Laser may be administered by a dermatologist, who has received adequate background training in lasers during postgraduation or later at a center that provides education and training in lasers, or in focused workshops which provide such trainings. He should have adequate knowledge of the machines, parameters, cooling systems, and aftercare. Facility: The procedure may be performed in the physician′s minor procedure room. Indications: Epidermal lesions: Cafι au lait macules (CALM, lentigines, freckles, solar lentigo, nevus spilus, pigmented seborrheic keratosis, dermatosis papulosa nigra (DPN. Dermal lesions: Nevus of Ota, Blue nevus, Hori′s nevus (acquired bilateral nevus of Ota-like macules. Tattoos: Amateur, professional, cosmetic, medicinal, and traumatic. Mixed epidermal and dermal lesions: Postinflammatory hyperpigmentation (PIH, nevus spilus, periorbital and perioral pigmentation, acquired melanocytic nevi (moles, melasma and Becker′s Nevus. Contraindications: Absolute: Active local infection, photo-aggravated skin diseases and medical conditions, tattoo granuloma, allergic reactions to tattoo pigment, unstable vitiligo and psoriasis. Relative: Keloid and keloidal tendencies, patient on isotretinoin, history of herpes simplex, patient who is not co-operative or has unrealistic expectation. Patient selection: Proper patient selection is important. Investigations to identify any underlying cause for pigmentation are important; concurrent topical and systemic drug therapy may be needed. History of scarring, response to previous

  6. The free electron laser: a system capable of determining the gold standard in laser vision correction

    International Nuclear Information System (INIS)

    Fowler, W. Craig; Rose, John G.; Chang, Daniel H.; Proia, Alan D.

    1999-01-01

    Introduction. In laser vision correction surgery, lasers are generally utilized based on their beam-tissue interactions and corneal absorption characteristics. Therefore, the free electron laser, with its ability to provide broad wavelength tunability, is a unique research tool for investigating wavelengths of possible corneal ablation. Methods. Mark III free electron laser wavelengths between 2.94 and 6.7 μm were delivered in serial 0.1 μm intervals to corneas of freshly enucleated porcine globes. Collateral damage, ablation depth, and ablation diameter were measured in histologic sections. Results. The least collateral damage (12-13 μm) was demonstrated at three wavelengths: 6.0, 6.1 (amide I), and 6.3 μm. Minimal collateral damage (15 μm) was noted at 2.94 μm (OH-stretch) and at 6.2 μm. Slightly greater collateral damage was noted at 6.45 μm (amide II), as well as at the 5.5-5.7 μm range, but this was still substantially less than the collateral damage noted at the other wavelengths tested. Conclusions. Our results suggest that select mid-infrared wavelengths have potential for keratorefractive surgery and warrant additional study. Further, the free electron laser's ability to allow parameter adjustment in the far-ultraviolet spectrum may provide unprecedented insights toward establishing the gold-standard parameters for laser vision correction surgery

  7. Calibrating Fundamental British Values: How Head Teachers Are Approaching Appraisal in the Light of the Teachers' Standards 2012, Prevent and the Counter-Terrorism and Security Act, 2015

    Science.gov (United States)

    Revell, Lynn; Bryan, Hazel

    2016-01-01

    In requiring that teachers should "not undermine fundamental British values (FBV)," a phrase originally articulated in the Home Office counter-terrorism document, Prevent, the Teachers' Standards has brought into focus the nature of teacher professionalism. Teachers in England are now required to promote FBV within and outside school,…

  8. International laser safety standardization. From the European perspective with an emphasis on materials processing

    International Nuclear Information System (INIS)

    Schulmeister, K.

    1997-08-01

    This report reviews international standards relevant to the safety of laser products and laser installations, with an emphasis on the safety of laser materials processing from the European perspective. In the first paragraphs an overview of the international standards organisations, their relative roles and ways of developing new standards is given. In the second part of the report, work currently underway in the respective standards committees is summarised and specific standards dealing with different aspects of laser safety are discussed. An appendix contains a list of standards organised in standards organisations IEC, ISO and EN). (author)

  9. Cryogenic flow rate measurement with a laser Doppler velocimetry standard

    Science.gov (United States)

    Maury, R.; Strzelecki, A.; Auclercq, C.; Lehot, Y.; Loubat, S.; Chevalier, J.; Ben Rayana, F.

    2018-03-01

    A very promising alternative to the state-of-the-art static volume measurements for liquefied natural gas (LNG) custody transfer processes is the dynamic principle of flow metering. As the Designated Institute (DI) of the LNE (‘Laboratoire National de métrologie et d’Essais’, being the French National Metrology Institute) for high-pressure gas flow metering, Cesame-Exadebit is involved in various research and development programs. Within the framework of the first (2010-2013) and second (2014-2017) EURAMET Joint Research Project (JRP), named ‘Metrological support for LNG custody transfer and transport fuel applications’, Cesame-Exadebit explored a novel cryogenic flow metering technology using laser Doppler velocimetry (LDV) as an alternative to ultrasonic and Coriolis flow metering. Cesame-Exadebit is trying to develop this technique as a primary standard for cryogenic flow meters. Currently, cryogenic flow meters are calibrated at ambient temperatures with water. Results are then extrapolated to be in the Reynolds number range of real applications. The LDV standard offers a unique capability to perform online calibration of cryogenic flow meters in real conditions (temperature, pressure, piping and real flow disturbances). The primary reference has been tested on an industrial process in a LNG terminal during truck refuelling. The reference can calibrate Coriolis flow meters being used daily with all the real environmental constraints, and its utilisation is transparent for LNG terminal operators. The standard is traceable to Standard International units and the combined extended uncertainties have been determined and estimated to be lower than 0.6% (an ongoing improvement to reducing the correlation function uncertainty, which has a major impact in the uncertainty estimation).

  10. Experimental and clinical standards, and evolution of lasers in neurosurgery.

    Science.gov (United States)

    Devaux, B C; Roux, F X

    1996-01-01

    From initial experiments of ruby, argon and CO2 lasers on the nervous system so far, dramatic progress was made in delivery systems technology as well as in knowledge of laser-tissue interaction effects and hazards through various animal experiments and clinical experience. Most surgical effects of laser light on neural tissue and the central nervous system (CNS) are thermal lesions. Haemostasis, cutting and vaporization depend on laser emission parameters--wavelength, fluence and mode--and on the exposed tissues optical and thermal properties--water and haemoglobin content, thermal conductivity and specific heat. CO2 and Nd-YAG lasers have today a large place in the neurosurgical armamentarium, while new laser sources such as high power diode lasers will have one in the near future. Current applications of these lasers derive from their respective characteristics, and include CNS tumour and vascular malformation surgery, and stereotactic neurosurgery. Intracranial, spinal cord and intra-orbital meningiomas are the best lesions for laser use for haemostasis, dissection and tissue vaporization. Resection of acoustic neuromas, pituitary tumours, spinal cord neuromas, intracerebral gliomas and metastases may also benefit from lasers as accurate, haemostatic, non-contact instruments which reduce surgical trauma to the brain and eloquent structures such as brain stem and cranial nerves. Coagulative lasers (1.06 microns and 1.32 microns Nd-YAG, argon, or diode laser) will find an application for arteriovenous malformations and cavernomas. Any fiberoptic-guided laser will find a use during stereotactic neurosurgical procedures, including image-guided resection of tumours and vascular malformations and endoscopic tumour resection and cysts or entry into a ventricle. Besides these routine applications of lasers, laser interstitial thermotherapy (LITT) and photodynamic therapy (PDT) of brain tumours are still in the experimental stage. The choice of a laser in a

  11. ANSI laser standards, education (Z136.5), research, development or testing (Z136.8)

    Science.gov (United States)

    Barat, K.

    2014-07-01

    Several factors affect laser use in educational settings. First is the lower cost of lasers, in particular, diode have made lasers more accessible for laser classroom use (think of the hand held laser in red, green and blue). Second in the research and development, no technology has made the impact of the laser. Third the importance of introducing students to this technology. To the point no discipline is laser free. To address laser safety in the academic setting two American National Standard Institute Standards have been developed. The most recent Z136.8 Safe Use of Lasers in Research, Development and Testing Setting, published in 2012, Z136.5 Laser Safety in Education -2009 version was published. Z136.5 provides guidance for educators starting in public school and ranging into the college level. This includes classroom demonstrations and science fair demonstrations. Z136.8 is geared for the Graduate and Commercial research level. Z136.5 relies on the use of pre-approved safety lessons plans and appreciation of student maturity or lack of, Z136.8 relies heavily on cooperation between the user and the laser safety officer. The presentation will cover the contents of each and the different approaches taken.

  12. Preliminary detection of explosive standard components with Laser Raman Technique

    International Nuclear Information System (INIS)

    Botti, S.; Ciardi, R.

    2008-01-01

    Presently, our section is leader of the ISOTREX project (Integrated System for On-line TRace EXplosives detection in solid, liquid and vapour state), funded in the frame of the PASR 2006 action (Preparatory Action on the enhancement of the European industrial potential in the field of Security Research Preparatory Action) of the 6. EC framework. ISOTREX project will exploit the capabilities of different laser techniques as LIBS (Laser Induced Breakdown Spectroscopy), LPA (Laser Photo Acustic) and CRDS (Cavity Ring Down Spectroscopy) to monitor explosive traces. In this frame, we extended our investigation also to the laser induced Raman effect spectroscopy, in order to investigate its capabilities and possible future integration. We analysed explosive samples in bulk solid phase, diluted liquid phase and as evaporated films over suitable substrate. In the following, we present the main results obtained, outlining preliminary conclusions [it

  13. The history and evolution of laser safety standards

    Energy Technology Data Exchange (ETDEWEB)

    Sliney, D. [USA Center for Health Promotion and Preventive Medicine, Gunpowder, MD (United States)

    2004-07-01

    Laser safety became a concern within a year of the first successful laser operation in 1960. The first biological research studies and publications on eye hazards appeared in 1961. Maximum Permissible Exposure (MPE) limits, threshold limit values (TLVs), or simply Exposure Limits (ELs) have evolved from the mid 1960s. Regardless of the terminology applied, these limits are now virtually the same worldwide (ICNIRP, 2000; ACGIH, 2000; ANSI, 2000; IEC/EN, 2001). This wide consensus has not always existed. Several issues have remained at the forefront of all efforts to set human exposure limits for laser radiation. These issues include concerns over whether there exists any damage mechanisms that are unique to coherent laser radiation, or can one expect differences between damage produced by a laser when compared to incoherent optical radiation within the same wavelength region. Indeed, questions have always existed with regard to the dominance (within any spectral region and exposure duration) of different damage mechanisms (e.g., thermal, photochemical, thermo-acoustic, optical-breakdown) and the role played by various conventional and non-linear optical phenomena in biological tissues. Other issues relate to the geometry of heat flow, the dissipation of energy and the biological response. Practical laser safety owes much to the development of laser safety classification after it was recognized that the probability of an accidental eye injury was very remote in many applications and measurements of the primary beam did little to identify reflection hazards. Unfortunately, the probabilistic risk analysis that led to the rationale and the definitions of the early laser safety classification scheme are now too frequently overlooked. (orig.)

  14. Lasers

    OpenAIRE

    Passeron, Thierry

    2012-01-01

    International audience; Lasers are a very effective approach for treating many hyperpigmented lesions. They are the gold standard treatment for actinic lentigos and dermal hypermelanocytosis, such as Ota nevus. Becker nevus, hyperpigmented mosaicisms, and lentigines can also be succesfully treated with lasers, but they could be less effective and relapses can be observed. However, lasers cannot be proposed for all types of hyperpigmentation. Thus, freckles and café-aulait macules should not b...

  15. Near‐IR laser cleaning of Cu‐ based artefacts: a comprehensive study of the methodology standardization

    DEFF Research Database (Denmark)

    Hrnjic, Mahir

    2015-01-01

    . In this study, laser cleaning was performed with near-IR lasers on artificially aged copper specimens and on two copper coins coming from Bubastis (Egypt) in order to remove the patinas in a totally non invasive way. Different irradiance and different number of passes were utilised and compared. Treated surface......Laser cleaning, as a conservation technique, is a selective, precise and minimal intrusive method of removing corrosion product layers. Nevertheless, in order to optimise this method as a standard conservation technique, it is still necessary to define different laser cleaning methodologies...

  16. British passports

    CERN Multimedia

    IT Department

    2008-01-01

    Please note that from 01/01/2009, the passport section of the British Consulate will move from Geneva to Paris. This change is part of a global initiative to rationalize passport services and reduce administrative costs while ensuring that the quality of the service remains high. The aim is to issue new passports within 10 working days of receiving applications (excluding transit time). From 1st January 2009 passport applications should be sent by courier or registered post directly to: British Consulate General BP111-08 75363 Paris CEDEX 08 France For further information please refer to: http://ukinswitzerland.fco.gov.uk/en/passports/passport-move/

  17. Open radical cystectomy in England: the current standard of care - an analysis of the British Association of Urological Surgeons (BAUS) cystectomy audit and Hospital Episodes Statistics (HES) data.

    Science.gov (United States)

    Jefferies, Edward R; Cresswell, Joanne; McGrath, John S; Miller, Catherine; Hounsome, Luke; Fowler, Sarah; Rowe, Edward W

    2018-01-23

    To establish the current standard for open radical cystectomy (ORC) in England, as data entry by surgeons performing RC to the British Association of Urological Surgeons (BAUS) database was mandated in 2013 and combining this with Hospital Episodes Statistics (HES) data has allowed comprehensive outcome analysis for the first time. All patients were included in this analysis if they were uploaded to the BAUS data registry and reported to have been performed in the 2 years between 1 January 2014 and 31 December 2015 in England (from mandate onwards) and had been documented as being performed in an open fashion (not laparoscopic, robot assisted or the technique field left blank). The HES data were accessed via the HES website. Office of Population Censuses and Surveys Classification of Surgical Operations and Procedures version 4 (OPCS-4) Code M34 was searched during the same 2-year time frame (not including M34.4 for simple cystectomy or with additional minimal access codes Y75.1-9 documenting a laparoscopic or robotic approach was used) to assess data capture. A total of 2 537 ORCs were recorded in the BAUS registry and 3 043 in the HES data. This indicates a capture rate of 83.4% of all cases. The median operative time was 5 h, harvesting a median of 11-20 lymph nodes, with a median blood loss of 500-1 000 mL, and a transfusion rate of 21.8%. The median length of stay was 11 days, with a 30-day mortality rate of 1.58%. This is the largest, contemporary cohort of ORCs in England, encompassing >80% of all performed operations. We now know the current standard for ORC in England. This provides the basis for individual surgeons and units to compare their outcomes and a standard with which future techniques and modifications can be compared. © 2018 The Authors BJU International © 2018 BJU International Published by John Wiley & Sons Ltd.

  18. Quality standards in upper gastrointestinal endoscopy: a position statement of the British Society of Gastroenterology (BSG) and Association of Upper Gastrointestinal Surgeons of Great Britain and Ireland (AUGIS).

    Science.gov (United States)

    Beg, Sabina; Ragunath, Krish; Wyman, Andrew; Banks, Matthew; Trudgill, Nigel; Pritchard, D Mark; Riley, Stuart; Anderson, John; Griffiths, Helen; Bhandari, Pradeep; Kaye, Phillip; Veitch, Andrew

    2017-11-01

    This document represents the first position statement produced by the British Society of Gastroenterology and Association of Upper Gastrointestinal Surgeons of Great Britain and Ireland, setting out the minimum expected standards in diagnostic upper gastrointestinal endoscopy. The need for this statement has arisen from the recognition that while technical competence can be rapidly acquired, in practice the performance of a high-quality examination is variable, with an unacceptably high rate of failure to diagnose cancer at endoscopy. The importance of detecting early neoplasia has taken on greater significance in this era of minimally invasive, organ-preserving endoscopic therapy. In this position statement we describe 38 recommendations to improve diagnostic endoscopy quality. Our goal is to emphasise practices that encourage mucosal inspection and lesion recognition, with the aim of optimising the early diagnosis of upper gastrointestinal disease and improving patient outcomes. © Article author(s) (or their employer(s) unless otherwise stated in the text of the article) 2017. All rights reserved. No commercial use is permitted unless otherwise expressly granted.

  19. Lasers.

    Science.gov (United States)

    Passeron, T

    2012-12-01

    Lasers are a very effective approach for treating many hyperpigmented lesions. They are the gold standard treatment for actinic lentigos and dermal hypermelanocytosis, such as Ota nevus. Becker nevus, hyperpigmented mosaicisms, and lentigines can also be successfully treated with lasers, but they could be less effective and relapses can be observed. However, lasers cannot be proposed for all types of hyperpigmentation. Thus, freckles and café-au-lait macules should not be treated as the relapses are nearly constant. Due to its complex pathophysiology, melasma has a special place in hyperpigmented dermatoses. Q-switched lasers (using standard parameters or low fluency) should not be used because of consistent relapses and the high risk of post-inflammatory hyperpigmentation. Paradoxically, targeting the vascular component of the melasma lesion with lasers could have a beneficial effect. However, these results have yet to be confirmed. In all cases, a precise diagnosis of the type of hyperpigmentation is mandatory before any laser treatment, and the limits and the potential side effects of the treatment must be clearly explained to patients. Copyright © 2012 Elsevier Masson SAS. All rights reserved.

  20. [Lasers].

    Science.gov (United States)

    Passeron, T

    2012-11-01

    Lasers are a very effective approach for treating many hyperpigmented lesions. They are the gold standard treatment for actinic lentigos and dermal hypermelanocytosis, such as Ota nevus. Becker nevus, hyperpigmented mosaicisms, and lentigines can also be successfully treated with lasers, but they could be less effective and relapses can be observed. However, lasers cannot be proposed for all types of hyperpigmentation. Thus, freckles and café-au-lait macules should not be treated as the relapses are nearly constant. Due to its complex pathophysiology, melasma has a special place in hyperpigmented dermatoses. Q-switched lasers (using standard parameters or low fluency) should not be used because of consistent relapses and the high risk of post-inflammatory hyperpigmentation. Paradoxically, targeting the vascular component of the melasma lesion with lasers could have a beneficial effect. However, these results have yet to be confirmed. In all cases, a precise diagnosis of the type of hyperpigmentation is mandatory before any laser treatment, and the limits and the potential side effects of the treatment must be clearly explained to patients. Copyright © 2012 Elsevier Masson SAS. All rights reserved.

  1. Standard guidelines of care: CO 2 laser for removal of benign skin lesions and resurfacing

    Directory of Open Access Journals (Sweden)

    Krupashankar D

    2008-03-01

    Full Text Available Resurfacing is a treatment to remove acne and chicken pox scars, and changes in the skin due to ageing. Machines : Both ablative and nonablative lasers are available for use. CO 2 laser is the gold standard in ablative lasers. Detailed knowledge of the machines is essential. Indications for CO 2 laser: Therapeutic indications: Actinic and seborrheic keratosis, warts, moles, skin tags, epidermal and dermal nevi, vitiligo blister and punch grafting, rhinophyma, sebaceous hyperplasia, xanthelasma, syringomas, actinic cheilitis angiofibroma, scar treatment, keloid, skin cancer, neurofibroma and diffuse actinic keratoses. CO 2 laser is not recommended for the removal of tattoos. Aesthetic indications: Resurfacing for acne, chicken pox and surgical scars, periorbital and perioral wrinkles, photo ageing changes, facial resurfacing. Physicians′ qualifications: Any qualified dermatologist (DVD or MD may practice CO 2 laser. The dermatologist should possess postgraduate qualification in dermatology and should have had specific hands-on training in lasers either during postgraduation or later at a facility which routinely performs laser procedures under a competent dermatologist/plastic surgeon, who has experience and training in using lasers. For the use of CO 2 lasers for benign growths, a full day workshop is adequate. As parameters may vary in different machines, specific training with the available machine at either the manufacturer′s facility or at another centre using the machine is recommended. Facility: CO 2 lasers can be used in the dermatologist′s minor procedure room for the above indications. However, when used for full-face resurfacing, the hospital operation theatre or day care facility with immediate access to emergency medical care is essential. Smoke evacuator is mandatory. Preoperative counseling and Informed consent Detailed counseling with respect to the treatment, desired effects, possible postoperative complications, should be

  2. Minimum standard guidelines of care on requirements for setting up a laser room

    Directory of Open Access Journals (Sweden)

    Dhepe Niteen

    2009-08-01

    low humidity and dust free environment for longer life of machines. Patient chair: A dental/cosmetic chair with adjustable task light is a suitable option for patient positioning. The chair should have the option to tilt head down or ′syncope position′ to facilitate resuscitation of a patient in vaso-vagal shock. Maintenance: Annual maintenance contract (AMC is essential after warranty period is over and is essential for insurance purposes. Mobile Laser Unit: Mobile laser units are of relevance in the Indian context to render laser facility available in smaller towns. A laser with fiber optic delivery system can be made mobile after consultation with supplier. However a laser with an articulated arm delivery cannot be made mobile. Proper packing with shock absorbing material is necessary during transportation. The area where lasers are to be moved to and operated should have appropriate facilities as mentioned above. Records: Patient′s health declaration questionnaires, laser register are essential records. Digital photography before and at regular intervals after procedure is an essential record. Detailed informed consent in patients language for each procedure explaining nature of procedure, anesthesia used, and machine used, post operative down time should be signed by patient. Drugs, anesthesia and sterilization: An electrocautery machine to control bleeding, equipments for airway maintenance, other instruments for emergency resuscitation and an emergency drug tray are essential. Standard sterilization practices are adopted. For most of laser procedures topical anesthesia is sufficient. Safe laser use: Protocols of safe laser use to avoid burns or eye damage to patients or operator are adopted. Reflective surfaces like mirrors, reflective jewelleries are not allowed in laser room. Machine should always be on standby mode when not in direct use. It should be used by authorized operator only. Eye protection: Goggles of sufficient optical density (OD intended

  3. Dick Effect in a Microwave Frequency Standard Based on Laser-Cooled 113Cd+ Ions

    Science.gov (United States)

    Zhang, Jian-Wei; Miao, Kai; Wang, Li-Jun

    2015-01-01

    The Dick effect is one of the main limits to the frequency stability of a passive frequency standard, especially for the fountain clock and ion clock operated in pulsed mode which require unavoidable dead time during interrogation. Here we measure the phase noise of the interrogation oscillator applied in the microwave frequency standard based on laser-cooled 113Cd+ ions, and analyze the Allan deviation limited by the Dick effect. The results indicate that the Dick effect is one of the key issues for the cadmium ion clock to reach expected frequency stability. This problem can be resolved by interrogating the local oscillator continuously with two ion traps.

  4. Measurements of secondary emissions from plasma arc and laser cutting in standard experiments

    International Nuclear Information System (INIS)

    Pilot, G.; Noel, J.P.; Leautier, R.; Steiner, H.; Tarroni, G.; Waldie, B.

    1992-01-01

    As part of an inter-facility comparison of secondary emissions from plasma arc and laser-cutting techniques, standard cutting tests have been done by plasma arc underwater and in air, and by laser beam in air. The same team was commissioned to measure the secondary emissions (solid and gaseous) in each contractor's facility with the same measuring rig. 20 mm and 40 mm thick, grade 304 stainless-steel plates were cut by plasma-torch in three different facilities: Heriot Watt University of Edinburgh, Institut fuer Werkstoffkunde of Universitaet Hannover and CEA/CEN Cadarache. 10 mm and in some cases 20 mm thick, grade 304, stainless-steel plates were cut by laser beam in five different facilities: CEA-CEN Fontenay, CEA-CEN Saclay, Institut fuer Werkstoffkunde of Universitaet Hannover and ENEA/Frascati. The results obtained in the standard experiments are rather similar, and the differences that appear can be explained by the various scales of the involved facilities (semi-industrial and laboratory) and by some particularities in the cutting parameters (an additional secondary gas flow of oxygen in plasma cutting at Universitaet Hannover, for example)

  5. The Current Canon in British Romantics Studies.

    Science.gov (United States)

    Linkin, Harriet Kramer

    1991-01-01

    Describes and reports on a survey of 164 U.S. universities to ascertain what is taught as the current canon of British Romantic literature. Asserts that the canon may now include Mary Shelley with the former standard six major male Romantic poets, indicating a significant emergence of a feminist perspective on British Romanticism in the classroom.…

  6. British Petroleum

    DEFF Research Database (Denmark)

    Andersen, Torben Juul; Andersen, Christine Bang

    2014-01-01

    . The company started with a venturous search for oil in Iran in the early 1900s to eventually become a multinational oil and gas conglomerate among the world’s largest energy companies. The company grew by developing oil fields around the world including demanding locations like Alaska, the North Sea...... by viewing the on-line inspection copy. Access is unlimited and you may print as many copies as you wish for use with your students. Standard pricing applies for any copies ordered from The Case Centre....

  7. Time transfer capability of standard small form factor pluggable laser modules based on photon counting approach

    Science.gov (United States)

    Trojanek, Pavel; Prochazka, Ivan; Blazej, Josef

    2017-05-01

    We are reporting on timing parameters of commonly used standard Small Form Factor Pluggable (SFP) laser modules using single photon counting method. Photon counting is a promising approach for laser time transfer via optical fiber communication hardware. The sub-picosecond precision and stability may be achieved. We have performed several experiments with the aim to measure main parameters of the modules, such as time delay precision, time stability and temperature stability, all being critical for optical time transfer applications. Two standard 16 and 10 Gbit/s at 850 nm SFP modules were examined. The ultimate precision of possible time transfer of 800 fs for averaging times of hours was achieved. The modules together with their driving circuits exhibited very good temperature stability. The temperature drift as low as 300+/-200 fs/K was measured. The achieved timing parameters will enable to use the standard SFP modules for a new method of two way time transfer where the time differences between two distant time scales are measured in parallel to data transfer on existing optical data links without any communication interference.

  8. British Sign Name Customs

    Science.gov (United States)

    Day, Linda; Sutton-Spence, Rachel

    2010-01-01

    Research presented here describes the sign names and the customs of name allocation within the British Deaf community. While some aspects of British Sign Language sign names and British Deaf naming customs differ from those in most Western societies, there are many similarities. There are also similarities with other societies outside the more…

  9. Chlamydial partner notification in the British Association for Sexual Health and HIV (BASHH) 2011 UK national audit against the BASHH Medical Foundation for AIDS and Sexual Health Sexually Transmitted Infections Management Standards.

    Science.gov (United States)

    McClean, H; Carne, C A; Sullivan, A K; Radcliffe, K W; Ahmed-Jushuf, I

    2012-10-01

    This paper reports on chlamydial partner notification (PN) performance in the 2011 BASHH national audit against the British Association for Sexual Health and HIV (BASHH) Medical Foundation for AIDS Sexual Health (MedFASH) Sexually Transmitted Infection Management Standards (STIMS). There was wide regional variation in level 3 clinic PN performance against the current standard of index case-reported chlamydial PN, with 43% (regional range 0-80%) of clinics outside London meeting the ≥0.6 contacts seen per index standard, and 85% of clinics (regional range 82-88%) in London meeting the ≥0.4 standard. For level 2 clinics, 39% (regional range 0-100%) of clinics outside London met the ≥0.6 standard, and 43% (regional range 40-50%) of clinics in London met the ≥0.4 standard. Performance for health-care worker (HCW)-verified contact attendance is also reported. New standards for each of these performance measures are proposed for all level 3 clinics: ≥0.6 contacts seen per index case based on index case report, and ≥0.4 contacts seen per index case based on HCW verification, both within four weeks of the first partner notification interview. The results are discussed with regard to the importance of adoption of standards by commissioners of services, relevance to national quality agendas, and the need for development of a national system of PN quality assurance measurement and reporting.

  10. Clinical trial for detection of dental caries using laser-induced fluorescence ratio reference standard

    Science.gov (United States)

    Thomas, Shiny Sara; Mohanty, Soumyakant; Jayanthi, J. L.; Varughese, Jolly Mary; Balan, Anitha; Subhash, Narayanan

    2010-03-01

    We present the clinical applicability of fluorescence ratio reference standard (FRRS) to discriminate different stages of dental caries. Toward this, laser-induced autofluorescence emission spectra are recorded in vivo in the 400- to 800-nm spectral range on a miniature fiber optic spectrometer from 65 patients, with a 404-nm diode laser as the excitation source. Autofluorescence spectra of sound teeth consist of a broad emission at 500 nm that is typical of natural enamel, whereas in caries teeth additional peaks are seen at 635 and 680 nm due to emission from porphyrin compounds in oral bacteria. Scatter plots are developed to differentiate sound teeth from enamel caries, sound teeth from dentinal caries, and enamel caries from dentinal caries using the mean fluorescence intensity (FI) and ratios F500/F635 and F500/F680 measured from 25 sites of sound teeth and 65 sites of carious teeth. The sensitivity and specificity of both the FI and FRRS are determined. It is observed that a diagnostic algorithm based on FRRS scatter plots is able to discriminate enamel caries from sound teeth, dentinal caries from sound teeth, and enamel from dentinal caries with overall sensitivities of 85, 100, and 88% and specificities of 90, 100, and 77%, respectively.

  11. Identification of standard explosive traces by infrared laser spectroscopy: PCA on LPAS data

    Science.gov (United States)

    Giubileo, G.; Colao, F.; Puiu, A.

    2012-06-01

    Infrared spectroscopy based methods are promising in the design of an integrated optical system for the real time detection and identification of explosive species to support homeland security. Infrared laser photoacoustic spectroscopy (LPAS) analysis of explosive compounds (DNT; TNT; RDX; HMX; TATP; PETN; TETRYL) and TOLUENE was reported. Standard commercial samples of the explosive species were analyzed in solid phase by a home made PAS apparatus equipped with a stabilized 10 W continuous wave CO2 laser source. A very small amount (less than 100 μg) of the sample was sufficient to produce a clear signal in a 3 cc volume PA cell. The spectral data were treated by a principal component analysis (PCA) based algorithm. In a three principal components representation of the results, every explosive species resulted to be very well distinguishable from each other, as well as from toluene and other solvents. The reported experimental activity was performed in the Molecular Spectroscopy Laboratory of ENEA Research Centre in Frascati in the frame of ISOTREX European Project.

  12. Minimum standard guidelines of care on requirements for setting up a laser room

    OpenAIRE

    Dhepe Niteen

    2009-01-01

    Introduction, definition, rationale and scope: Lasers are now becoming an integral part of dermatological practice in India, with more and more dermatologists starting laser dermatology practice. Lasers, when are used with care, by properly trained operators, in carefully designed environment, can deliver a range of useful aesthetic and dermatologic treatments. Facility: Laser treatment is an office procedure, hence it does not require hospital set-up. The laser room facility requires car...

  13. Size of corneal topographic effective optical zone: comparison of standard and customized myopic laser in situ keratomileusis.

    Science.gov (United States)

    Racine, Louis; Wang, Li; Koch, Douglas D

    2006-08-01

    To investigate the corneal topographic effective optical zone (EOZ) in eyes after wavefront-guided myopic laser in situ keratomileusis (LASIK) and to compare them with the EOZ after standard LASIK. Retrospective, case-control study. We evaluated the corneal topographic maps of 41 eyes of 25 consecutive patients who had CustomVue LASIK (CV LASIK) and 41 eyes of 23 patients who had standard LASIK with correction up to -7 diopters using the VISX Star S4 laser (VISX Inc, Santa Clara, California, USA). On the refractive map of the Humphrey Topography System, we defined the EOZ as the area outlined by a change of corneal power of 0.5 diopters from the power at the center of the pupil. We analyzed the differences in EOZs of the two ablation patterns and the correlation between EOZ and magnitude of refractive correction. The mean postoperative EOZs were 17.9 +/- 3.7 mm(2) and 11.4 +/- 3.4 mm(2) after CV and standard LASIK, representing 60% and 40% of the laser-programmed optical zones, respectively (both P .05). In eyes with spherical correction (cylinder LASIK increased the preoperative EOZ by 3.8 +/- 5.6 mm(2) (P = .018), whereas standard LASIK decreased EOZ by 4.5 +/- 5.2 mm(2) (P = .005). CV LASIK created larger corneal topographic EOZs than standard ablation. In eyes with spherical correction, the preoperative EOZ was expanded by CV LASIK and reduced by standard LASIK.

  14. For British eyes only?

    International Nuclear Information System (INIS)

    Rothstein, L.

    1993-01-01

    Americans are learning about the history of their own nuclear weapons program from British documents released under the 30-year rule. In January, the British government released papers related to the 1958-61 U.S.-Soviet moratorium on nuclear testing and the resumption of U.S. testing in 1962. According to Solly Zuckerman, chief scientific advisor to the British Defense Ministry at the time, the United Kingdom had not appreciated that the nuclear weapons experts of the U.S. and U.S.S.R. used the two-and-a-half-year moratorium to plan the largest program of tests these countries carried out

  15. Retinal nerve fiber layer assessment by scanning laser polarimetry and standardized photography

    NARCIS (Netherlands)

    Niessen, A. G.; van den Berg, T. J.; Langerhorst, C. T.; Greve, E. L.

    1996-01-01

    To determine whether, in a clinical setting, scanning laser polarimetry and retinal nerve fiber layer photography provide equivalent information on the retinal nerve fiber layer. We prospectively studied 60 patients with glaucoma or ocular hypertension and 24 healthy subjects. With scanning laser

  16. Laser

    OpenAIRE

    Du, K.; Loosen, P.; Herziger, G.

    1991-01-01

    Laser, consisting of a beam path multiple-folded by means of two cavity end mirrors and having at least one reflector folding the laser beam retroreflectively, the axis of which is arranged offset in parallel to the axis of a further reflector. So that the laser exhibits an improved beam quality while retaining its comparatively low adjustment sensitivity, the beam path is folded at least twice by means of the retoreflective reflector.

  17. A diode-laser optical frequency standard based on laser-cooled Ca atoms: sub-kilohertz spectroscopy by optical shelving detection

    International Nuclear Information System (INIS)

    Oates, C.W.; Bondu, F.; Fox, R.W.; Hollberg, L.

    1999-01-01

    We report an optical frequency standard at 657 nm based on laser-cooled/trapped Ca atoms. The system consists of a novel, compact magneto-optic trap which uses 50 mW of frequency-doubled diode laser light at 423 nm and can trap >10 7 Ca atoms in 20 ms. High resolution spectroscopy on this atomic sample using the narrow 657 nm intercombination line resolves linewidths (FWHM) as narrow as 400 Hz, the natural linewidth of the transition. The spectroscopic signal-to-noise ratio is enhanced by an order of magnitude with the implementation of a ''shelving'' detection scheme on the 423 nm transition. Our present apparatus achieves a fractional frequency instability of 5 x 10 -14 in 1 s with a potential atom shot-noise-limited performance of 10 -16 τ -1/2 and excellent prospects for high accuracy. (orig.)

  18. UK national audit against the key performance indicators in the British Association for Sexual Health and HIV Medical Foundation for AIDS and Sexual Health Sexually Transmitted Infections Management Standards.

    Science.gov (United States)

    McClean, H; Sullivan, A K; Carne, C A; Warwick, Z; Menon-Johansson, A; Clutterbuck, D

    2012-10-01

    A national audit of practice performance against the key performance indicators in the British Association for Sexual Health and HIV (BASHH) and HIV Medical Foundation for AIDS Sexual Health Standards for the Management of Sexually Transmitted Infections (STIs) was conducted in 2011. Approximately 60% and 8% of level 3 and level 2 services, respectively, participated. Excluding partner notification performance, the five lowest areas of performance for level 3 clinics were the STI/HIV risk assessment, care pathways linking care in level 2 clinics to local level 3 services, HIV test offer to patients with concern about STIs, information governance and receipt of chlamydial test results by clinicians within seven working days (the worst area of performance). The five lowest areas of performance for level 2 clinics were participating in audit, having an audit plan for the management of STIs for 2009-2010, the STI/HIV risk assessment, HIV test offer to patients with concern about STIs and information governance. The results are discussed with regard to the importance of adoption of the standards by commissioners of services because of their relevance to other national quality assurance drivers, and the need for development of a national system of STI management quality assurance measurement and reporting.

  19. Improvement of Laser Frequency Stabilization for the Optical Pumping Cesium Beam Standard

    International Nuclear Information System (INIS)

    Wang Qing; Duan Jun; Qi Xiang-Hui; Zhang Yin; Chen Xu-Zong

    2015-01-01

    A method is presented to improve the laser frequency stabilization for the optical pumping cesium clock. By comparing the laser frequency stabilization of different schemes, we verify that the light angle is an important factor that limits the long-term frequency stability. We minimize the drift of the light angle by using a fiber-coupled output, and lock the frequency of a distributed-feedback diode laser to the fluorescence spectrum of the atomic beam. The measured frequency stability is about 3.5 × 10 −11 at 1 s and reaches 1.5 × 10 −12 at 2000 s. The Allan variance keeps going down for up to thousands of seconds, indicating that the medium- and long-term stability of the laser frequency is significantly improved and perfectly fulfills the requirement for the optical pumping cesium clock. (paper)

  20. Testing Lorentz Invariance with Laser-Cooled Cesium Atomic Frequency Standards

    Science.gov (United States)

    Klipstein, William M.

    2004-01-01

    This slide presentation reviews the Lorentz invariance testing during the proposed PARCS experiment. It includes information on the primary atomic reference clock in space (PARCS), cesium, laser cooling, and the vision for the future.

  1. LATIS3D The Gold Standard for Laser-Tissue-Interaction Modeling

    CERN Document Server

    London, R A; Gentile, N A; Kim, B M; Makarewicz, A M; Vincent, L; Yang, Y B

    2000-01-01

    The goal of this LDRD project has been to create LATIS3D--the world's premier computer program for laser-tissue interaction modeling. The development was based on recent experience with the 2D LATIS code and the ASCI code, KULL. With LATIS3D, important applications in laser medical therapy were researched including dynamical calculations of tissue emulsification and ablation, photothermal therapy, and photon transport for photodynamic therapy. This project also enhanced LLNL's core competency in laser-matter interactions and high-energy-density physics by pushing simulation codes into new parameter regimes and by attracting external expertise. This will benefit both existing LLNL programs such as ICF and SBSS and emerging programs in medical technology and other laser applications.

  2. LATIS3D: The Gold Standard for Laser-Tissue-Interaction Modeling

    International Nuclear Information System (INIS)

    London, R.A.; Makarewicz, A.M.; Kim, B.M.; Gentile, N.A.; Yang, Y.B.; Brlik, M.; Vincent, L.

    2000-01-01

    The goal of this LDRD project has been to create LATIS3D--the world's premier computer program for laser-tissue interaction modeling. The development was based on recent experience with the 2D LATIS code and the ASCI code, KULL. With LATIS3D, important applications in laser medical therapy were researched including dynamical calculations of tissue emulsification and ablation, photothermal therapy, and photon transport for photodynamic therapy. This project also enhanced LLNL's core competency in laser-matter interactions and high-energy-density physics by pushing simulation codes into new parameter regimes and by attracting external expertise. This will benefit both existing LLNL programs such as ICF and SBSS and emerging programs in medical technology and other laser applications

  3. Validation of the G.LAB MD2200 wrist blood pressure monitor according to the European Society of Hypertension, the British Hypertension Society, and the International Organization for Standardization Protocols.

    Science.gov (United States)

    Liu, Ze-Yu; Zhang, Qing-Han; Ye, Xiao-Lei; Liu, Da-Peng; Cheng, Kang; Zhang, Chun-Hai; Wan, Yi

    2017-04-01

    To validate the G.LAB MD2200 automated wrist blood pressure (BP) monitors according to the European Society of Hypertension International Protocol (ESH-IP) revision 2010, the British Hypertension Society (BHS), and the International Organization for Standardization (ISO) 81060-2:2013 protocols. The device was assessed on 33 participants according to the ESH requirements and was then tested on 85 participants according to the BHS and ISO 81060-2:2013 criteria. The validation procedures and data analysis followed the protocols precisely. The G.LAB MD2200 devices passed all parts of ESH-IP revision 2010 for both systolic and diastolic BP, with a device-observer difference of 2.15±5.51 and 1.51±5.16 mmHg, respectively. The device achieved A/A grading for the BHS protocol and it also fulfilled the criteria of ISO 81060-2:2013, with mean differences of systolic and diastolic BP between the device and the observer of 2.19±5.21 and 2.11±4.70 mmHg, respectively. The G.LAB MD2200 automated wrist BP monitor passed the ESH-IP revision 2010 and the ISO 81060-2:2013 protocol, and achieved the A/A grade of the BHS protocol, which can be recommended for self-measurement in the general population.

  4. Audit of compliance with the British Committee for Standards in Haematology (BCSH) revised guidelines for the diagnosis and assessment of treatment response of hairy cell leukemia in University Hospital Galway.

    Science.gov (United States)

    Velazquez-Kennedy, K; Crowe, C; Craven, B; Walsh, J; Prendergast, C; Krawczyk, J

    2017-05-01

    Hairy cell leukemia (HCL) is an uncommon B cell lymphoproliferative disorder. The object of the present audit was to assess whether the investigation and management of HCL in University College Hospital Galway (UCHG) complies with the British Committee for Standards in Haematology (BCSH) guidelines. Following a review of the records in our Haematology Department, 18 cases of HCL were identified between January 2006 and October 2014. Blood film examination had been performed in all cases. Flow cytometry of liquid material had been undertaken in 89 % (n = 16) of cases, of which only 31 % (n = 5) included all four hairy cell panel markers (CD11c, CD25, CD103, CD123). Although all initial trephine biopsies included CD20, none analyzed DBA44. Only 65 % (n = 11) of treated patients had a post-treatment bone marrow biopsy preformed. This audit highlights areas of improvement in the diagnosis and management of HCL in UCHG, which do not currently adhere to the BCSH recommendations.

  5. Novel implementation of an ISO standard method for primary vibration calibration by laser interferometry

    CSIR Research Space (South Africa)

    Veldman, CS

    2003-01-01

    Full Text Available An implementation of the sine-approximation method of ISO 16063-11 (primary vibration calibration by laser interferometry) is described. The quadrature interference signals are generated using an interferometer as described in method 3 of ISO 16063...

  6. Chronocentrism and British criminology.

    Science.gov (United States)

    Rock, Paul

    2005-09-01

    Criminologists display a largely unexamined propensity to ignore writings that are more than fifteen or so years old, with evident consequences for the public presentation and validation of expert knowledge. A citation study was combined with detailed observations from British criminologists to ascertain quite how that disavowal of the past was accomplished.

  7. Love British books 2012

    OpenAIRE

    Wood, Philippa

    2012-01-01

    Armenia is celebrating the 500th anniversary of the first printed Armenian book and the declaration of Yerevan as World Book Capital 2012 by UNESCO. Within the framework of festive events, the House of Artists Union hosted the exhibition 'Love British books' otrgnaised by the RA Ministry of Culture, together with the University of Northampton (UK).

  8. Incremental yield of dysplasia detection in Barrett's esophagus using volumetric laser endomicroscopy with and without laser marking compared with a standardized random biopsy protocol.

    Science.gov (United States)

    Alshelleh, Mohammad; Inamdar, Sumant; McKinley, Matthew; Stewart, Molly; Novak, Jeffrey S; Greenberg, Ronald E; Sultan, Keith; Devito, Bethany; Cheung, Mary; Cerulli, Maurice A; Miller, Larry S; Sejpal, Divyesh V; Vegesna, Anil K; Trindade, Arvind J

    2018-02-02

    Volumetric laser endomicroscopy (VLE) is a new wide-field advanced imaging technology for Barrett's esophagus (BE). No data exist on incremental yield of dysplasia detection. Our aim is to report the incremental yield of dysplasia detection in BE using VLE. This is a retrospective study from a prospectively maintained database from 2011 to 2017 comparing the dysplasia yield of 4 different surveillance strategies in an academic BE tertiary care referral center. The groups were (1) random biopsies (RB), (2) Seattle protocol random biopsies (SP), (3) VLE without laser marking (VLE), and (4) VLE with laser marking (VLEL). A total of 448 consecutive patients (79 RB, 95 SP, 168 VLE, and 106 VLEL) met the inclusion criteria. After adjusting for visible lesions, the total dysplasia yield was 5.7%, 19.6%, 24.8%, and 33.7%, respectively. When compared with just the SP group, the VLEL group had statistically higher rates of overall dysplasia yield (19.6% vs 33.7%, P = .03; odds ratio, 2.1, P = .03). Both the VLEL and VLE groups had statistically significant differences in neoplasia (high-grade dysplasia and intramucosal cancer) detection compared with the SP group (14% vs 1%, P = .001 and 11% vs 1%, P = .003). A surveillance strategy involving VLEL led to a statistically significant higher yield of dysplasia and neoplasia detection compared with a standard random biopsy protocol. These results support the use of VLEL for surveillance in BE in academic centers. Copyright © 2018 American Society for Gastrointestinal Endoscopy. Published by Elsevier Inc. All rights reserved.

  9. The Use of Laser Microdissection in Forensic Sexual Assault Casework: Pros and Cons Compared to Standard Methods.

    Science.gov (United States)

    Costa, Sergio; Correia-de-Sá, Paulo; Porto, Maria J; Cainé, Laura

    2017-07-01

    Sexual assault samples are among the most frequently analyzed in a forensic laboratory. These account for almost half of all samples processed routinely, and a large portion of these cases remain unsolved. These samples often pose problems to traditional analytic methods of identification because they consist most frequently of cell mixtures from at least two contributors: the victim (usually female) and the perpetrator (usually male). In this study, we propose the use of current preliminary testing for sperm detection in order to determine the chances of success when faced with samples which can be good candidates to undergo analysis with the laser microdissection technology. Also, we used laser microdissection technology to capture fluorescently stained cells of interest differentiated by gender. Collected materials were then used for DNA genotyping with commercially available amplification kits such as Minifiler, Identifiler Plus, NGM, and Y-Filer. Both the methodology and the quality of the results were evaluated to assess the pros and cons of laser microdissection compared with standard methods. Overall, the combination of fluorescent staining combined with the Minifiler amplification kit provided the best results for autosomal markers, whereas the Y-Filer kit returned the expected results regardless of the used method. © 2017 American Academy of Forensic Sciences.

  10. Fabrication of advanced targets for laser driven nuclear fusion reactions through standard microelectronics technology approaches.

    Czech Academy of Sciences Publication Activity Database

    Picciotto, A.; Crivellari, M.; Bellutti, P.; Barozzi, M.; Kucharik, M.; Krása, Josef; Swidlovsky, A.; Malinowska, A.; Velyhan, Andriy; Ullschmied, Jiří; Margarone, Daniele

    2017-01-01

    Roč. 12, October (2017), č. článku P10001. ISSN 1748-0221 Grant - others:OP VK 2 LaserGen(XE) CZ.1.07/2.3.00/20.0087; LaserZdroj (OP VK 3)(XE) CZ.1.07/2.3.00/20.0279 Institutional support: RVO:61389021 ; RVO:68378271 Keywords : Nuclear instruments and methods for hot plasma diagnostics * Plasma generation (laserproduced, RF, x ray-produced) * Plasma diagnostics - charged-particle spectroscopy Subject RIV: BL - Plasma and Gas Discharge Physics; BL - Plasma and Gas Discharge Physics (FZU-D) OBOR OECD: 2.11 Other engineering and technologies; 2.11 Other engineering and technologies (FZU-D) Impact factor: 1.220, year: 2016 http://iopscience.iop.org/article/10.1088/1748-0221/12/10/P10001/meta

  11. High-resolution spectrally-resolved fiber optic sensor interrogation system based on a standard DWDM laser module.

    Science.gov (United States)

    Njegovec, Matej; Donlagic, Denis

    2010-11-08

    This paper presents a spectrally-resolved integration system suitable for the reading of Bragg grating, all-fiber Fabry-Perot, and similar spectrally-resolved fiber-optic sensors. This system is based on a standard telecommunication dense wavelength division multiplexing transmission module that contains a distributed feedback laser diode and a wavelength locker. Besides the transmission module, only a few additional opto-electronic components were needed to build an experimental interrogation system that demonstrated over a 2 nm wide wavelength interrogation range, and a 1 pm wavelength resolution. When the system was combined with a typical Bragg grating sensor, a strain resolution of 1 με and temperature resolution of 0.1 °C were demonstrated experimentally. The proposed interrogation system relies entirely on Telecordia standard compliant photonic components and can thus be straightforwardly qualified for use within the range of demanding applications.

  12. Comparison of the thermodynamic and correlation criteria for internal standard selection in laser-induced breakdown spectrometry

    International Nuclear Information System (INIS)

    Labutin, Timur A.; Zaytsev, Sergey M.; Popov, Andrey M.; Seliverstova, Irina V.; Bozhenko, Sergey E.; Zorov, Nikita B.

    2013-01-01

    The use of the reference line of an internal standard in LIBS is a usual way to eliminate or reduce the fluctuations of plasma parameters from pulse to pulse as well as from sample to sample. Thermodynamic criterion, i.e. closeness of excitation potentials of the analytical line and the reference one, is often used to select an appropriate reference line. In this work, we propose an alternative criterion based on searching the best correlated pairs of lines under the variations of laser energy. Two criteria were compared for high-alloy steels and soils of different origins. The discrepancy among the values of plasma temperature calculated from Fe I, Mn I and Cr I transitions was found under the conditions of slightly changed laser fluence on steel samples. On the other hand, the agreement between plasma temperatures, obtained for Fe I and Mn I transitions, was demonstrated in plasma on soil samples. Calibration results obtained for manganese in steels and lead in soils show that thermodynamic criterion can be an appropriate way for choosing an internal standard only under LTE conditions. Two lines of Mn I at 403.07 nm and 404.14 nm and Pb I at 405.78 nm were the analytical lines for the quantification of manganese in steels and lead in soils, respectively. The use of the correlative criterion seems to be suitable for internal standardization under LTE or non-LTE conditions. Probable limitations of the correlative criterion and its possibilities to identify weak lines are discussed in the article. - Highlights: • Novel criterion for internal standard selection, based on the correlation of analytical line and reference one • Comparison of correlation and thermodynamic criteria • Correlation analysis of the spectrum can be useful for atomic line identification. • Correlation approach can be used in LTE and non-LTE conditions

  13. Verification of surface contamination density standard using clearance automatic laser inspection system for objects from a nuclear power plant

    International Nuclear Information System (INIS)

    Sasaki, Michiya; Ogino, Haruyuki; Ichiji, Takeshi; Hattori, Takatoshi

    2008-01-01

    In the clearance level inspection in Japan, it is necessary to indicate that the activity level of the target object must be less than not only the clearance levels, but also the surface contamination density standards. The classification measurements for these two standards have been performed separately, and the GM survey meters based on beta-ray measurement have mainly been used for surface contamination density measurement so far. Recently the Clearance Automatic Laser Inspection System, named CLALIS, has been developed to estimate the low-level activity concentration. This system consists of 3-dimensional laser scanner for shape measurement and eight large NE102A plastic scintillation detectors for gamma-ray measurement, and it has been clarified that the CLALIS has adequate detection ability for clearance measurement of both metal scraps and concrete debris. In this study, we compared the surface contamination densities for a number of actual contaminated and non-contaminated objects generated inside from the radiation controlled area at the Kashiwazaki-Kariwa nuclear power station by using the CLALIS and the GM survey meter. As a result, since CLALIS could detect the surface contamination as well as the GM survey meter for all measurement targets, it was revealed that CLALIS can rationally achieve clearance level inspection in a single radiation measurement. The practicality of CLALIS in view of the detection limit and processing time was discussed by comparison with the usual radiation monitors for surface contamination measurement. (author)

  14. British Museum paintings

    OpenAIRE

    Edmonds, Frances

    2011-01-01

    Frances Edmonds is one of a group of artists selected for the show ‘Territories’ taking place at Galerie Windkracht 13 in Den Helder, Holland this July 2012. This exhibition is curated by Sharon Beavan and Gethin Evans. The artists represented work across the boundaries of two and three-dimensional and time based form. The brief – to interrogate and explore the notion of territories. Frances will be showing several paintings from the British Museum series, based on imagery collected ...

  15. Confluent diode laser coagulation: the gold standard of therapy for retinopathy of prematurity.

    Science.gov (United States)

    Prepiaková, Zuzana; Tomcíková, Dana; Kostolná, Barbora; Gerinec, Anton

    2015-01-01

    The authors compare results of retinopathy of prematurity treatment with single-spot diode laser coagulation (DLC) versus confluent DLC. The final anatomical outcome and need for additional therapy, such as additional DLC, cryotherapy, scleral buckling, and intravitreal bevacizumab, were evaluated. A retrospective review of patients with threshold retinopathy of prematurity treated between January 2001 and October 2012 was conducted. Single-spot laser treatment or confluent laser treatment was applied anterior to the ridge extending to the ora serrata. In the first group (the single-spot group), a single-spot DLC was used between January 2001 and May 2008. The single-spot group included 338 patients (671 eyes) with retinopathy of prematurity. In the second group (the confluent group), confluent DLC was used in 326 patients (652 eyes) between June 2008 and October 2012. The authors compared the need for re-treatment to achieve regression of retinopathy of prematurity in both groups. The rate of progression, frequency of re-treatment, complications, and structural outcomes were evaluated. In the single-spot group, re-treatment only with DLC was necessary in 43 (6.4%) eyes, additional cryotherapy was performed in 22 (3.3%) eyes, and scleral buckling in 107 (15.9%) eyes. Altogether, additional therapy was used in 172 (25.6%) eyes. In the confluent group, re-treatment with DLC was used in 5 (0.8%) eyes, additional cryotherapy in 6 (0.9%) eyes, scleral buckling in 16 (2.5%) eyes, and intravitreal bevacizumab in 14 (2.1%) eyes. Altogether, additional therapy was used in 41 (6.3%) eyes. The confluent group showed a favorable anatomical outcome in 99.1% of the cases compared with 96.4% in the single-spot group. The results were statistically significant (P = .001.) The DLC method was significantly more effective than single-spot DLC in the treatment of retinopathy of prematurity. Copyright 2015, SLACK Incorporated.

  16. Development of sulfide calibration standards for the laser ablation inductively-coupled plasma mass spectrometry technique

    Science.gov (United States)

    Wilson, S.A.; Ridley, W.I.; Koenig, A.E.

    2002-01-01

    The requirements of standard materials for LA-ICP-MS analysis have been difficult to meet for the determination of trace elements in sulfides. We describe a method for the production of synthetic sulfides by precipitation from solution. The method is detailed by the production of approximately 200 g of a material, PS-1, with a suite of chalcophilic trace elements in an Fe-Zn-Cu-S matrix. Preliminary composition data, together with an evaluation of the homogeneity for individual elements, suggests that this type of material meets the requirements for a sulfide calibration standard that allows for quantitative analysis. Contamination of the standard with Na suggests that H2S gas may prove a better sulfur source for future experiments. We recommend that calibration data be collected in whatever mode is closest to that employed for the analysis of the unknown material, because of variable fractionation effects as a function of analytical mode. For instance, if individual spot analyses are attempted on unknown sample, then a raster of several individual spot analyses, not a continuous scan, should be collected and averaged for the standard. Hg and Au are exceptions to the above and calibration data should always be collected in a scanning mode. Au is more heterogeneously distributed than other trace metals and large-area scans are required to provide an average value for calibration purposes. We emphasize that the values given in Table 1 are preliminary values. Further chemical characterization of this standard, through a round-robin analysis program, will allow the USGS to provide both certified and recommended values for individual elements. The USGS has developed PS-1 as a potential new LA-ICP-MS standard for use by the analytical community, and requests for this material should be addressed to S. Wilson. However, it is stressed that an important aspect of the method described here is the flexibility for individual investigators to produce sulfides with a wide range

  17. Irish Sea: British radioactivity

    International Nuclear Information System (INIS)

    Collins, Aongus

    1985-01-01

    British Nuclear Fuels Ltd. (BNFL) have recently taken the decision to invest several hundred million pounds in reducing the discharges from the Sellafield reprocessing plant into the Irish Sea. This report outlines the history of the plant and its operation up to the present day and its plans for the future. The attitude of the Irish regulatory authorities and of the public to the radioactive discharges is presented and the incidence of Downs Syndrome and certain specific cancer types on both sides of the Irish Sea is discussed

  18. Nutritional quality of meals and snacks assessed by the Food Standards Agency nutrient profiling system in relation to overall diet quality, body mass index, and waist circumference in British adults.

    Science.gov (United States)

    Murakami, Kentaro

    2017-09-13

    Studies examining meal and snack eating behaviors in relation to overall diet and health markers are limited, at least partly because there is no definitive consensus about what constitutes a snack, a meal, or an eating occasion. This cross-sectional study examined how nutritional quality of meals and snacks is associated with overall diet quality, body mass index (BMI), and waist circumference. Based on 7-d weighed dietary record data, all eating occasions were divided into meals or snacks based on time (meals: 0600-1000, 1200-1500, and 1800-2100 h; snacks: others) or contribution to energy intake (EI) (meals: ≥15%; snacks: meals and snacks was assessed as the arithmetic EI-weighted means of the British Food Standards Agency (FSA) nutrient profiling system score of each food and beverage consumed, based on the contents of energy, saturated fatty acid, total sugar, sodium, fruits/vegetables/nuts, dietary fiber, and protein per 100 g. Irrespective of the definition of meals and snacks, higher FSA scores (lower nutritional quality) of both meals and snacks were associated with unfavorable profiles of individual components of overall diet, including lower intakes of fruits/vegetables/nuts and higher intakes of biscuits/cakes/pastries, total fat, and saturated fatty acid. The FSA scores of meals and snacks were also inversely associated with overall diet quality assessed by the healthy diet indicator (regression coefficient (β) = -0.22 to -0.17 and -0.06 to -0.03, respectively) and Mediterranean diet score (β = -0.25 to -0.19 and -0.08 to -0.05, respectively) in both sexes (P ≤ 0.005). However, the associations were stronger for meals, mainly due to their larger contribution to total EI (64% to 84%). After adjustment for potential confounders, only the FSA score of snacks based on EI contribution was positively associated with BMI and waist circumference in women (P ≤ 0.005). Although lower nutritional quality of both meals and snacks assessed by the

  19. Laser frequency standards based on gas-filled hollow-core fibres

    DEFF Research Database (Denmark)

    Triches, Marco

    within precision spectroscopy with the scope of developing a fiber-based, portable optical frequency standard in the telecommunication band. Nowadays, portable optical frequency standards are important not only in metrology and telecommunication industry but also for remote sensing applications. Since...... technology, which has been widely investigated in the past decades, using many different molecular and atomic transitions as optical reference. One of the recommended references in the telecommunication region of the light spectrum is given by a specific absorption line in 13C2H2 acetylene. However, many...... other molecular references (e.g. methane and carbon dioxide) maybe interesting for remote sensing applications in the near infrared region. Typically, molecules are weakly absorbing in the telecommunication band and, hence, they require a long interaction length to be detected. For these reasons...

  20. Commercial reference shape standards use in the study of particle shape effect on laser diffraction particle size analysis.

    Science.gov (United States)

    Kelly, Richard N; Kazanjian, Jacqueline

    2006-05-26

    The purpose of this paper is to describe the use of LGC Promochem AEA 1001 to AEA 1003 monosized fiber-analog shape standards in the study of the effect of particle shape on laser diffraction (LD) particle size analysis (psa). The psa of the AEA standards was conducted using LD psa systems from Beckman Coulter, Horiba, and Malvern Instruments. Flow speed settings, sample refractive index values, and sample cell types were varied to examine the extent to which the shape effect on LD psa results is modified by these variables. The volume and number probability plots resulting from these measurements were each characterized by a spread in the particle size distribution that roughly extended from the breadth to the longest dimension of the particles. For most of the selected sample refractive index values, the volume probability plots were characterized by apparent bimodal distributions. The results, therefore, provide experimental verification of the conclusions from theoretical studies of LD psa system response to monosized elliptical particles in which this apparent bimodality was the predicted result in the case of flow-oriented particles. The data support the findings from previous studies conducted over the past 10 years that have called into question the verity of the tenets of, and therefore the value of the application of, the equivalent spherical volume diameter theory and the random particle orientation model to the interpretation of LD psa results from measurements made on nonspherical particles.

  1. Conference Proceedings: Photography and Britishness

    Directory of Open Access Journals (Sweden)

    Sean Willcock

    2016-11-01

    Full Text Available The video-recordings presented here were made at the conference Photography and Britishness, held at the Yale Center for British Art on November 4 – 5, 2016. The conference was the result of a collaboration between the Yale Center for British Art, New Haven, the Paul Mellon Centre for Studies in British Art, London, and the Huntington Library, Art Collections, and Botanical Gardens in San Marino—three research institutions that have a converging interest in British art. The conference sought to investigate the various ways in which notions of “Britishness” have been communicated, inflected, and contested through the photographic image. It was not a conference about the history of photography in Britain, or about British photography. Rather, it sought to consider the nature of the relationship between photography and Britishness: the notion that photography can capture images of Britishness, at the same time that our sense of what Britishness constitutes is produced by the photographic image. A key question for the conference was whether Britishness can have a photographic referent—or whether it is itself an effect of representation. Speakers at the conference approached these questions from a wide range of perspectives and focusing on a diverse number of photographic materials—from family albums and studio portraits to advertisements, reportage, and aerial photography—which demonstrated the complexities and instabilities not only of the term Britishness, but also of the medium of photography. The conference was opened with an introduction by John Tagg. The videos included here are presented in the order they were delivered.

  2. Quantitation of peptides and proteins by matrix-assisted laser desorption/ionization mass spectrometry using (18)O-labeled internal standards

    DEFF Research Database (Denmark)

    Mirgorodskaya, O A; Kozmin, Y P; Titov, M I

    2000-01-01

    for the tested sample by enzymatic hydrolysis of the same sample (with known concentration) in (18)O-water. A mathematical algorithm was developed which uses the isotopic patterns of the substance, the internal standard, and the substance/internal standard mixture for accurate quantitation of the substance......A method for quantitating proteins and peptides in the low picomole and sub-picomole range has been developed using matrix-assisted laser desorption/ionization mass spectrometry (MALDI-MS) with internal (18)O-labeled standards. A simple procedure is proposed to produce such internal standards...

  3. Matrix-Matched Iron-Oxide Laser Ablation ICP-MS U–Pb Geochronology Using Mixed Solution Standards

    Directory of Open Access Journals (Sweden)

    Liam Courtney-Davies

    2016-08-01

    Full Text Available U–Pb dating of the common iron-oxide hematite (α-Fe2O3, using laser-ablation inductively-coupled-plasma mass-spectrometry (LA-ICP-MS, provides unparalleled insight into the timing and processes of mineral deposit formation. Until now, the full potential of this method has been negatively impacted by the lack of suitable matrix-matched standards. To achieve matrix-matching, we report an approach in which a U–Pb solution and ablated material from 99.99% synthetic hematite are simultaneously mixed in a nebulizer chamber and introduced to the ICP-MS. The standard solution contains fixed U- and Pb-isotope ratios, calibrated independently, and aspiration of the isotopically homogeneous solution negates the need for a matrix-matched, isotopically homogenous natural iron-oxide standard. An additional advantage of using the solution is that the individual U–Pb concentrations and isotope ratios can be adjusted to approximate that in the unknown, making the method efficient for dating hematite containing low (~10 ppm to high (>1 wt % U concentrations. The above-mentioned advantage to this solution method results in reliable datasets, with arguably-better accuracy in measuring U–Pb ratios than using GJ-1 Zircon as the primary standard, which cannot be employed for such low U concentrations. Statistical overlaps between 207Pb/206Pb weighted average ages (using GJ-1 Zircon and U–Pb upper intercept ages (using the U–Pb mixed solution method of two samples from iron-oxide copper-gold (IOCG deposits in South Australia demonstrate that, although fractionation associated with a non-matrix matched standard does occur when using GJ-1 Zircon as the primary standard, it does not impact the 207Pb/206Pb or upper intercept age. Thus, GJ-1 Zircon can be considered reliable for dating hematite using LA-ICP-MS. Downhole fractionation of 206Pb/238U is observed to occur in spot analyses of hematite. The use of rasters in future studies will hopefully minimize

  4. Sulfur determination in concrete samples using laser-induced breakdown spectroscopy and limestone standards

    Science.gov (United States)

    Hrdlička, Aleš; Hegrová, Jitka; Novotný, Karel; Kanický, Viktor; Prochazka, David; Novotný, Jan; Modlitbová, Pavlína; Sládková, Lucia; Pořízka, Pavel; Kaiser, Jozef

    2018-04-01

    A LIBS equipment operating at 532 nm was optimized and used for sulfur determination in concrete samples. The influence of He atmosphere in a gas-tight chamber (1000-200 mbar) on S I 921.29 nm line sensitivity, signal-to-background and signal-to-noise ratio was studied at gate delays 100-2000 ns. Wide range of gate delays from 500 to about 1000 ns and pressures from several hundreds of mbar to the atmospheric pressure can be used for the desired detection of sulfur. The LIBS quantification was done using a simple calibration method. A synthetic limestone enriched by defined amounts of sodium sulfate was newly employed for direct quantification of S in concrete. This powder material was pressed into pellets and ablated with the LIBS system. The average content of sulfur as SO3 in the samples was 0.41-0.70 wt% by LIBS and 0.43-0.61 wt% by a reference standard procedure employing gravimetry and Inductively Coupled Plasma Triple Quad Mass Spectrometry (ICP-QQQMS). The uncertainty of the yielded LIBS results covers also the dispersion of the points in the calibration line and ranges from 16 to 28% at the probability level of 95%. The uncertainty of the ICP-QQQMS results was almost 10%. No correction on different signal response on the limestone and on the concrete was necessary.

  5. British Nuclear Fuels (Warrington)

    International Nuclear Information System (INIS)

    Hoyle, D.; Cryer, B.; Bellotti, D.

    1992-01-01

    This adjournment debate is about British Nuclear Fuels plc and the 750 redundancies due to take place by the mid-1990s at BNFL, Risley. The debate was instigated by the Member of Parliament for Warrington, the constituency in which BNFL, Risley is situated. Other members pointed out that other industries, such as the textile industry are also suffering job losses due to the recession. However the MP for Warrington argued that the recent restructuring of BNFL restricted the financial flexibility of BNFL so that the benefits of contracts won for THORP at Sellafield could not help BNFL, Risley. The debate became more generally about training, apprentices and employment opportunities. The Parliamentary Under-Secretary of State for Energy explained the position as he saw it and said BNFL may be able to offer more help to its apprentices. Long- term employment prospects at BNFL are dependent on the future of the nuclear industry in general. The debate lasted about half an hour and is reported verbatim. (U.K)

  6. 1970 British Cohort Study

    Directory of Open Access Journals (Sweden)

    Matt Brown

    2014-10-01

    Full Text Available The 1970 British Cohort Study (BCS70 is one of Britain’s world famous national longitudinal birth cohort studies, three of which are run by the Centre for Longitudinal Studies at the Institute of Education, University of London.  BCS70 follows the lives of more than 17,000 people born in England, Scotland and Wales in a single week of 1970. Over the course of cohort members lives, the BCS70 has collected information on health, physical, educational and social development, and economic circumstances among other factors. Since the birth survey in 1970, there have been nine ‘sweeps’ of all cohort members at ages 5, 10, 16, 26, 30, 34, 38 and most recently at 42. Data has been collected from a number of different sources (the midwife present at birth, parents of the cohort members, head and class teachers, school health service personnel and the cohort members themselves. The data has been collected in a variety of ways including via paper and electronic questionnaires, clinical records, medical examinations, physical measurements, tests of ability, educational assessments and diaries. The majority of BCS70 survey data can be accessed by bona fide researchers through the UK Data Service at the University of Essex.

  7. New endourologic technology for simultaneous holmium:YAG laser lithotripsy and fragment evacuation for PCNL: ex-vivo comparison to standard ultrasonic lithotripsy.

    Science.gov (United States)

    Michel, M S; Honeck, P; Alken, P

    2008-07-01

    Percutaneous nephrolithotomy (PCNL) is a well established procedure and accepted as the standard of care for the treatment of large renal calculi. Since the introduction of the holmium:yttrium-aluminum-garnet (Ho:YAG) laser into clinical practice in 1990, it has been used successfully to treat various urologic conditions. Today it is the modality of choice for retrograde intracorporeal stone disintegration ureteroscopically, and has also been used successfully for PCNL. One disadvantage when using the Ho:YAG laser for disintegration of renal calculi is the need for graspers to extract fragments and the mobilization of fragments due to the lack of simultaneous suction. We present our experience with a Ho:YAG laser in combination with simultaneous suction in an in-vitro model using a new endourologic technique in comparison to conventional ultrasonic lithotripsy.

  8. A critical history of British earthquakes

    Directory of Open Access Journals (Sweden)

    R. M. W. Musson

    2004-06-01

    Full Text Available This paper reviews the history of the study of historical British earthquakes. The publication of compendia of British earthquakes goes back as early as the late 16th Century. A boost to the study of earthquakes in Britain was given in the mid 18th Century as a result of two events occurring in London in 1750 (analogous to the general increase in earthquakes in Europe five years later after the 1755 Lisbon earthquake. The 19th Century saw a number of significant studies, culminating in the work of Davison, whose book-length catalogue was published finally in 1924. After that appears a gap, until interest in the subject was renewed in the mid 1970s. The expansion of the U.K. nuclear programme in the 1980s led to a series of large-scale investigations of historical British earthquakes, all based almost completely on primary historical data and conducted to high standards. The catalogue published by BGS in 1994 is a synthesis of these studies, and presents a parametric catalogue in which historical earthquakes are assessed from intensity data points based on primary source material. Since 1994, revisions to parameters have been minor and new events discovered have been restricted to a few small events.

  9. War of the British Worlds

    DEFF Research Database (Denmark)

    Mercau, Ezequiel

    2016-01-01

    The 1982 Falklands War was shrouded in symbolism, bringing to the fore divergent conceptions of Britishness, kinship, and belonging. This article casts light on the persistent purchase of the idea of Greater Britain long after the end of empire, addressing a case that would normally be deemed...... outside its spatial and temporal boundaries. By highlighting the inherent contradictions of this transnational bond, the South Atlantic conflict had a profound effect on an underexposed British community with a lingering attachment to a “British world”: the Anglo-Argentines. As they found themselves...... wedged between two irreconcilable identities, divisions threatened to derail this already enfeebled grouping. Yet leaders of the community, presuming a common Britishness with the Falkland Islanders and Britons in the United Kingdom, sought to intervene in the conflict by reaching out to both...

  10. Characterization and standardization of a thermoluminescent dosimetric system to ultraviolet and laser radiation using CaSO4:Dy

    International Nuclear Information System (INIS)

    Grossi, Fabio Henrique

    2002-01-01

    The photo transferred thermoluminescence (PTTL) was used to characterize a dosimetric system to the laser and ultraviolet radiation. Dysprosium activated calcium sulphate samples (CaSO 4 :Dy) used are produced at Instituto de Pesquisas Energeticas e Nucleares (IPEN) and have proved been an excellent dosimetric material for non ionizing radiation. PTTL signal was studied for UV radiation detection in the 220 to 450 nm range and for laser radiation in the 193 to 1.160 nm range. The samples presented more sensibility to the 193, 250, 310 and 337 nm wavelengths and no sensibility to infrared region. The samples presented linear PTTL in function of radiant exposure, excitation gamma dose in the range between 5 and 100 Gy and laser beam diameter between 2 and 6 nm. Another parameters studied were the angular dependence, UV lower exposure limit and PTTL signal optical fading. Spread laser radiation analysis was performed in the Ophthalmologic Department of Universidade Federal de Sao Paulo (UNIFESP) surgical center, showing that samples positioned as far as 4 m from laser source are sensitized to the laser radiation, as well as evaluating the laser exposure received by workers of medical area. A method to send the samples by mail was developed to the studies performed in the UNIFESP. (author)

  11. American and British Business-Related Spelling Differences

    Science.gov (United States)

    Scott, James Calvert

    2004-01-01

    English language business-related documents around the world contain purposeful spelling differences that reflect two standards, American English and British English. Given the importance of culturally acceptable spelling, the need to be aware of and sensitive to cultural differences, and strong reactions to variation in spelling, it is important…

  12. Spanish listeners’ perception of American and Southern British English vowels

    NARCIS (Netherlands)

    Escudero, P.; Chládková, K.

    2010-01-01

    L2 studies demonstrate that learners differ in their speech perception patterns. Recent explanations attribute this variation to the different initial stages with which learners start their L2 development. Spanish listeners' categorization of Standard Southern British English and American English

  13. Studies of Standard Heat Treatment Effects on Microstructure and Mechanical Properties of Laser Net Shape Manufactured INCONEL 718

    Science.gov (United States)

    Qi, H.; Azer, M.; Ritter, A.

    2009-10-01

    Laser net shape manufacturing (LNSM) is a laser cladding/deposition based technology, which can fabricate and repair near-net-shape high-performance components directly from metal powders. Characterizing mechanical properties of the laser net shape manufactured components is prerequisite to the applications of LNSM in aircraft engine industrial productions. Nickel-based superalloys such as INCONEL 718 are the most commonly used metal materials in aircraft engine high-performance components. In this study, the laser deposition process is optimized through a set of designed experiments to reduce the porosity to less than 0.03 pct. It is found that the use of plasma rotating electrode processed (PREP) powder and a high energy input level greater than 80 J/mm are necessary conditions to minimize the porosity. Material microstructure and tensile properties of laser-deposited INCONEL 718 are studied and compared under heat treatment conditions of as deposited, direct aged, solution treatment and aging (STA), and full homogenization followed by STA. Tensile test results showed that the direct age heat treatment produces the highest tensile strength equivalent to the wrought material, which is followed by the STA-treated and the homogenization-treated tensile strengths, while the ductility exhibits the reverse trend. Finally, failure modes of the tensile specimens were analyzed with fractography.

  14. Matrix-assisted laser desorption/ionization-time of flight mass spectrometry: protocol standardization and database expansion for rapid identification of clinically important molds.

    Science.gov (United States)

    Paul, Saikat; Singh, Pankaj; Rudramurthy, Shivaprakash M; Chakrabarti, Arunaloke; Ghosh, Anup K

    2017-12-01

    To standardize the matrix-assisted laser desorption ionization-time of flight mass spectrometry protocols and expansion of existing Bruker Biotyper database for mold identification. Four different sample preparation methods (protocol A, B, C and D) were evaluated. On analyzing each protein extraction method, reliable identification and best log scores were achieved through protocol D. The same protocol was used to identify 153 clinical isolates. Of these 153, 123 (80.3%) were accurately identified by using existing database and remaining 30 (19.7%) were not identified due to unavailability in database. On inclusion of missing main spectrum profile in existing database, all 153 isolates were identified. Matrix-assisted laser desorption ionization-time of flight mass spectrometry can be used for routine identification of clinically important molds.

  15. A histopathologic evaluation of the Plasma Skin Regeneration System (PSR) versus a standard carbon dioxide resurfacing laser in an animal model.

    Science.gov (United States)

    Fitzpatrick, R; Bernstein, E; Iyer, S; Brown, D; Andrews, P; Penny, K

    2008-02-01

    A variety of high energy, pulsed, and scanned carbon dioxide lasers are available to perform cutaneous resurfacing. Rhytec has developed a device for skin regeneration that utilizes energy delivered via a burst of nitrogen plasma. This study was undertaken to benchmark the energy outputs of the plasma skin regeneration device as compared to an ultra-short pulsed carbon dioxide laser (the control device). The two systems were compared for time to complete healing, and the healing response post-treatment. Three Yucatan mini-pigs were utilized for this study. Following anesthesia, five experimental sites were marked along the skin atop the psoas muscle on each side of the spine. Treatment was applied using either the plasma skin regeneration system or the carbon dioxide laser, with one site remaining untreated as a control. Biopsies were taken from all treatment sites 0, 2, 7, 14, 30, and 60 days following treatment and processed to hematoxylin-eosin staining. Histopathologic examination was performed by observers blinded as to the treatment conditions. Skin treated with the plasma skin regeneration device showed a wider range of tissue effects across the energy settings used as compared to the laser treatment. All treatment sites had clinically regenerated epidermis by 7 days after treatment, with active cellular response below the D/E junction noted at the day 30 time-point at energies ranging from 2 to 4 J. The Rhytec PSR system provides an attractive alternative to standard CO2 laser with good remodeling of tissue architecture. Epidermis regenerated after PSR treatment shows a smoother surface profile than adjacent untreated tissue.

  16. Young British Art / Hanno Soans

    Index Scriptorium Estoniae

    Soans, Hanno, 1974-

    2001-01-01

    1990ndate kunsti muutumisest. Inglise kunstniku Peter Daviese maalist "Kuum esimene sada" (1996), Gavin Turki vahakujuna valminud autoportreest "Pop". "Young British Art'i" uuskunstist ja Jasper Zoova installatsioonist "F1". Eri analüüsivõimalusi pakkuvatest töödest (Marko Laimre & Ene-Liis Semperi 2000. a. novembri ühisnäituse osa töid).

  17. Nuclear power in British politics

    International Nuclear Information System (INIS)

    Pocock, R.F.

    1987-01-01

    The paper concerns the subject of nuclear power in British politics in 1986. The policies of the major political parties towards nuclear power are briefly outlined, along with public attitudes to nuclear energy, Chernobyl, and the rise of the anti-nuclear campaigners. (UK)

  18. British Columbia : an alternative design

    International Nuclear Information System (INIS)

    Ostergaard, P.

    2003-01-01

    This PowerPoint presentation outlined the British Columbia Ministry of Energy and Mines' approach to the electricity market. A brief overview of the electric system in the province was provided, examining capacity (primarily hydro based) and the utility sector with its public ownership. In British Columbia, 80 per cent of the electricity is generated by British Columbia Hydro (BC Hydro). The rates are based on cost of service. British Columbia's market is western North America. A comparison of monthly bills for several large cities, both Canadian and American, was displayed. The market reviews conducted in 1995, 1998, and 2002 were reviewed and the major recommendations discussed. The author identified the opportunities in the province, discussing natural gas and coal for electricity production, resource potential, demand, and private sector capacity. The challenges facing the province are: cost effective development of resources to meet energy demand; aging infrastructure, high reliability requirements and economic growth; evolving electricity market structure in the United States; and, monopoly. The transmission system was reviewed with reference to trade with the Pacific Northwest, flexibility and storage. The energy plan objectives for the future were presented, including low rates and public ownership, secure and reliable supply, more private sector opportunities, and environmental responsibility. The alternative market structure includes regulated market characteristics, access to trade, and customer focus. figs

  19. Prepositions in American and British English.

    Science.gov (United States)

    Mindt, Dieter; Weber, Christel

    1989-01-01

    Compares the distribution of prepositions in American and British English. Two machine-readable one million word Corpora, the Brown Corpus of American English and the Lob Corpus of British are used as a basis of comparison. (Author/OD)

  20. A novel strategy for preparing calibration standards for the analysis of plant materials by laser-induced breakdown spectroscopy: A case study with pellets of sugar cane leaves

    Science.gov (United States)

    da Silva Gomes, Marcos; de Carvalho, Gabriel Gustinelli Arantes; Santos, Dário, Junior; Krug, Francisco José

    2013-08-01

    Calibration is still a challenging task when dealing with the direct analysis of solids. This is particularly true for laser-induced breakdown spectroscopy (LIBS), and laser ablation inductively coupled plasma optical emission spectrometry/mass spectrometry, when the calibrations are matrix-dependent and/or appropriate certified reference materials are generally not available. Looking at the analysis of plant materials in the form of pressed pellets by LIBS, a new method to overcome and/or minimize this difficulty is proposed by keeping the matrix constant in order to produce matrix-matched calibration pellets. To achieve this goal and to test this novel approach, ground sugar cane leaves were chosen and submitted to acid extractions for obtaining the corresponding blank or a material containing very low concentrations of the analytes. The resulting dried solid material was used either as a blank or a low concentration standard, and also homogeneously mixed with the original plant material at appropriate ratios as well. The corresponding pellets were used as calibration standards and ablated at 30 different sites by applying 25 laser pulses per site with a Q-switched Nd:YAG at 1064 nm. The plasma emission collected by lenses was directed through an optical fiber towards a spectrometer equipped with Echelle optics and intensified charge-coupled device. Delay time and integration time gate were fixed at 2.0 and 5.0 μs, respectively. This calibration strategy was tested for the determination of Ca, Mg, K, P, Cu, Mn, and Zn by LIBS in pellets of leaves from 17 varieties of sugar cane and good correlations were obtained with inductively coupled plasma optical emission spectrometry results in the corresponding acid digests. The proposed approach was also useful to estimate the limits of detection based on measurements of blanks, as recommended by IUPAC, or with the aid of a low concentration standard.

  1. A brave new animal for a brave new world: The British Laboratory Animals Bureau and the constitution of international standards of laboratory animal production and use, circa 1947-1968.

    Science.gov (United States)

    Kirk, Robert G W

    2010-03-01

    In 1947 the Medical Research Council of Britain established the Laboratory Animals Bureau in order to develop national standards of animal production that would enable commercial producers better to provide for the needs of laboratory animal users. Under the directorship of William Lane-Petter, the bureau expanded well beyond this remit, pioneering a new discipline of "laboratory animal science" and becoming internationally known as a producer of pathogenically and genetically standardized laboratory animals. The work of this organization, later renamed the Laboratory Animals Centre, and of Lane-Petter did much to systematize worldwide standards for laboratory animal production and provision--for example, by prompting the formation of the International Committee on Laboratory Animals. This essay reconstructs how the bureau became an internationally recognized center of expertise and argues that standardization discourses within science are inherently internationalizing. It traces the dynamic co-constitution of standard laboratory animals alongside that of the identities of the users, producers, and regulators of laboratory animals. This process is shown to have brought into being a transnational community with shared conceptual understandings and material practices grounded in the materiality of the laboratory animal, conceived as an instrumental technology.

  2. Improving executive function using transcranial infrared laser stimulation.

    Science.gov (United States)

    Blanco, Nathaniel J; Maddox, W Todd; Gonzalez-Lima, Francisco

    2017-03-01

    Transcranial infrared laser stimulation is a new non-invasive form of low-level light therapy that may have a wide range of neuropsychological applications. It entails using low-power and high-energy-density infrared light from lasers to increase metabolic energy. Preclinical work showed that this intervention can increase cortical metabolic energy, thereby improving frontal cortex-based memory function in rats. Barrett and Gonzalez-Lima (2013, Neuroscience, 230, 13) discovered that transcranial laser stimulation can enhance sustained attention and short-term memory in humans. We extend this line of work to executive function. Specifically, we ask whether transcranial laser stimulation enhances performance in the Wisconsin Card Sorting Task that is considered the gold standard of executive function and is compromised in normal ageing and a number of neuropsychological disorders. We used a laser of a specific wavelength (1,064 nm) that photostimulates cytochrome oxidase - the enzyme catalysing oxygen consumption for metabolic energy production. Increased cytochrome oxidase activity is considered the primary mechanism of action of this intervention. Participants who received laser treatment made fewer errors and showed improved set-shifting ability relative to placebo controls. These results suggest that transcranial laser stimulation improves executive function and may have exciting potential for treating or preventing deficits resulting from neuropsychological disorders or normal ageing. © 2015 The British Psychological Society.

  3. National personality characteristics: II. Adaption-innovation in Canadian, American, and British samples.

    Science.gov (United States)

    Skinner, Nicholas F; Hutchinson, Lynda; Lukenda, Andrea; Drake, Gillian; Boucher, Jocelyn

    2003-02-01

    On the Kirton Adaption-Innovation Inventory 1,106 Canadians scored as more adaptive than American and British standardization samples. Means for Canadian females and males were congruent with those in national samples from six other countries.

  4. Differences between American English and British English: A Challenge to TESOL.

    Science.gov (United States)

    Benson, Morton

    1989-01-01

    Educational programs for teachers of English as a Second Language must devote more attention to differences between the standard varieties of American and British English, with instruction focusing on the major orthographic, morphological, syntactic, collocational, and lexical differences. (CB)

  5. Quantification of captopril in urine through surface-assisted laser desorption/ionization mass spectrometry using 4-mercaptobenzoic acid-capped gold nanoparticles as an internal standard.

    Science.gov (United States)

    Chen, Wen-Tsen; Chiang, Cheng-Kang; Lin, Yang-Wei; Chang, Huan-Tsung

    2010-05-01

    We have developed a new internal standard method for the determination of the concentration of captopril (CAP) through surface-assisted laser desorption/ionization mass spectrometry (SALDI-MS) using gold nanoparticles (Au NPs). This approach provided linearity for CAP over the concentration range 2.5-25 microM (R(2) = 0.987), with a limit of detection (signal-to-noise ratio = 3) of 1.0 microM. The spot-to-spot variations in the concentration of CAP through SALDI-MS analyses performed in the absence and presence of the internal standard were 26% and 9%, respectively (15 measurements). This approach provides simplicity, accuracy, precision, and great reproducibility to the determination of the levels of CAP in human urine samples. Copyright 2010 American Society for Mass Spectrometry. Published by Elsevier Inc. All rights reserved.

  6. A novel strategy for preparing calibration standards for the analysis of plant materials by laser-induced breakdown spectroscopy: A case study with pellets of sugar cane leaves

    Energy Technology Data Exchange (ETDEWEB)

    Silva Gomes, Marcos da [Universidade de São Paulo, Centro de Energia Nuclear na Agricultura (CENA), Laboratório de Química Analítica, Caixa Postal 96, CEP 13416-000, Piracicaba, SP (Brazil); Universidade Federal de São Carlos, Departamento de Química, Rodovia Washington Luiz km 235, São Carlos, SP (Brazil); Gustinelli Arantes de Carvalho, Gabriel [Universidade de São Paulo, Centro de Energia Nuclear na Agricultura (CENA), Laboratório de Química Analítica, Caixa Postal 96, CEP 13416-000, Piracicaba, SP (Brazil); Santos, Dário [Universidade Federal de São Paulo, Departamento de Ciências Exatas e da Terra, Rua Professor Arthur Riedel 275, Diadema, SP (Brazil); Krug, Francisco José, E-mail: fjkrug@cena.usp.br [Universidade de São Paulo, Centro de Energia Nuclear na Agricultura (CENA), Laboratório de Química Analítica, Caixa Postal 96, CEP 13416-000, Piracicaba, SP (Brazil)

    2013-08-01

    Calibration is still a challenging task when dealing with the direct analysis of solids. This is particularly true for laser-induced breakdown spectroscopy (LIBS), and laser ablation inductively coupled plasma optical emission spectrometry/mass spectrometry, when the calibrations are matrix-dependent and/or appropriate certified reference materials are generally not available. Looking at the analysis of plant materials in the form of pressed pellets by LIBS, a new method to overcome and/or minimize this difficulty is proposed by keeping the matrix constant in order to produce matrix-matched calibration pellets. To achieve this goal and to test this novel approach, ground sugar cane leaves were chosen and submitted to acid extractions for obtaining the corresponding blank or a material containing very low concentrations of the analytes. The resulting dried solid material was used either as a blank or a low concentration standard, and also homogeneously mixed with the original plant material at appropriate ratios as well. The corresponding pellets were used as calibration standards and ablated at 30 different sites by applying 25 laser pulses per site with a Q-switched Nd:YAG at 1064 nm. The plasma emission collected by lenses was directed through an optical fiber towards a spectrometer equipped with Echelle optics and intensified charge-coupled device. Delay time and integration time gate were fixed at 2.0 and 5.0 μs, respectively. This calibration strategy was tested for the determination of Ca, Mg, K, P, Cu, Mn, and Zn by LIBS in pellets of leaves from 17 varieties of sugar cane and good correlations were obtained with inductively coupled plasma optical emission spectrometry results in the corresponding acid digests. The proposed approach was also useful to estimate the limits of detection based on measurements of blanks, as recommended by IUPAC, or with the aid of a low concentration standard. - Highlights: • Blanks and/or low concentration standards of plant

  7. Net metering in British Columbia : white paper

    International Nuclear Information System (INIS)

    Berry, T.

    2003-01-01

    Net metering was described as being the reverse registration of an electricity customer's revenue meter when interconnected with a utility's grid. It is a provincial policy designed to encourage small-distributed renewable power generation such as micro-hydro, solar energy, fuel cells, and larger-scale wind energy. It was noted that interconnection standards for small generation is an important issue that must be addressed. The British Columbia Utilities Commission has asked BC Hydro to prepare a report on the merits of net metering in order to support consultations on a potential net metering tariff application by the utility. This report provides information on net metering with reference to experience in other jurisdictions with net metering, and the possible costs and benefits associated with net metering from both a utility and consumer perspective. Some of the barriers and policy considerations for successful implementation of net metering were also discussed. refs., tabs., figs

  8. Effect of psoralen and near UV on vertebrate cells in culture: comparison of laser with standard lamp

    International Nuclear Information System (INIS)

    Peterson, S.P.; Berns, M.W.

    1978-01-01

    4'-Aminoethyl-4,5',8-trimethylpsoralen, a DNA photoreagent, was used in conjunction with near UV light to modify cell growth and morphology. Since near UV radiation is needed to trigger the photoreactions, various doses of classical and laser near UV light were exposed to cells growing in media containing psoralen. It was found that near UV light caused a reduction in cell viability as indicated by complete inhibition of growth. The specificity of psoralens for nucleic acids was also investigated by using a tritium labeled psoralen derivative and tracing its appearance in different fractions of DNA from treated and untreated cells. (author)

  9. Weston Standard battery

    CERN Multimedia

    This is a Weston AOIP standard battery with its calibration certificate (1956). Inside, the glassware forms an "H". Its name comes from the British physicist Edward Weston. A standard is the materialization of a given quantity whose value is known with great accuracy.

  10. British gas barrow onshore terminal

    International Nuclear Information System (INIS)

    Spicer, G.W.; Woodward, C.

    1991-01-01

    This paper reports on the Morecambe Bay Gas Field that was discovered in 1974 by Gas Council Exploration, a wholly owned subsidiary of British Gas plc. The Project to develop the Field commenced in January, 1980 against the background of escalating world oil prices. Production began on January 8, 1985, in time to help meet the peak winter demands. A maximum daily production rate of 1,587 million scfd was achieved on February 7, 1991. The PURASPEC H 2 S removal process was commissioned in May of 1989 to control export gas quality

  11. Science and the British Empire.

    Science.gov (United States)

    Harrison, Mark

    2005-03-01

    The last few decades have witnessed a flowering of interest in the history of science in the British Empire. This essay aims to provide an overview of some of the most important work in this area, identifying interpretative shifts and emerging themes. In so doing, it raises some questions about the analytical framework in which colonial science has traditionally been viewed, highlighting interactions with indigenous scientific traditions and the use of network-based models to understand scientific relations within and beyond colonial contexts.

  12. A laser interferometric oil manometer as the primary standard for absolute pressure in the range 1 1000 Pa

    Science.gov (United States)

    Sadkovskaya, I. V.; Eichwald, A. I.

    2008-03-01

    The paper describes the principle and research of a new laser interferometric oil manometer for measuring low absolute pressure, which is being developed at the D.I. Mendeleyev Institute for Metrology (VNIIM). Surface waves in oil are effectively suppressed with specially designed floats supporting the thin near-surface layer in manometer tubes. A new approach to the research of capillary uncertainty is proposed. It is based on interferometric measurements of the oil surface curvature in manometer tubes and allows a correct estimation of the capillary uncertainty. Today the total uncertainty of the measured pressure P is estimated to be (1.0 + 0.01p/Pa)·10-2 Pa.

  13. Associations between nutritional quality of meals and snacks assessed by the Food Standards Agency nutrient profiling system and overall diet quality and adiposity measures in British children and adolescents.

    Science.gov (United States)

    Murakami, Kentaro

    2018-05-01

    This cross-sectional study examined how the nutritional quality of meals and snacks was associated with overall diet quality and adiposity measures. Based on 7-d weighed dietary record data, all eating occasions were divided into meals or snacks based on time (meals: 06:00-09:00 h, 12:00-14:00 h, and 17:00-20:00 h; snacks: others) or contribution to energy intake (meals: ≥15%; snacks: quality of meals and snacks was assessed as the arithmetical energy intake-weighted means of the Food Standards Agency (FSA) nutrient profiling system score of each food and beverage consumed, based on the contents of energy, saturated fatty acid, total sugar, sodium, fruits/vegetables/nuts, dietary fiber, and protein. Regardless of the definition of meals and snacks, higher FSA score (lower nutritional quality) of meals was inversely associated with overall diet quality assessed by the Mediterranean diet score in both children and adolescents (P quality of meals, but not snacks, assessed by the FSA score was associated with lower overall diet quality, whereas no consistent associations were observed with regard to adiposity measures. Copyright © 2017 Elsevier Inc. All rights reserved.

  14. Directors in British and Irish cinema 

    OpenAIRE

    Murphy, R. P.

    2006-01-01

    Directors in British and Irish Cinema is an assessment of the careers and achievements of over a thousand directors, most of whom have received little scholarly attention. It draws upon the expertise of over sixty contributors. Each of the 1028 entries has been provided with a comprehensive filmography (which for some of the silent film directors includes over a hundred films). Comprehensive coverage have made it a standard reference work. Collaboration with the BFI-based website Screenonli...

  15. Laser spectroscopy

    CERN Document Server

    Demtröder, Wolfgang

    Keeping abreast of the latest techniques and applications, this new edition of the standard reference and graduate text on laser spectroscopy has been completely revised and expanded. While the general concept is unchanged, the new edition features a broad array of new material, e.g., ultrafast lasers (atto- and femto-second lasers) and parametric oscillators, coherent matter waves, Doppler-free Fourier spectroscopy with optical frequency combs, interference spectroscopy, quantum optics, the interferometric detection of gravitational waves and still more applications in chemical analysis, medical diagnostics, and engineering.

  16. Laser spectroscopy

    CERN Document Server

    Demtröder, Wolfgang

    2008-01-01

    Keeping abreast of the latest techniques and applications, this new edition of the standard reference and graduate text on laser spectroscopy has been completely revised and expanded. While the general concept is unchanged, the new edition features a broad array of new material, e.g., frequency doubling in external cavities, reliable cw-parametric oscillators, tunable narrow-band UV sources, more sensitive detection techniques, tunable femtosecond and sub-femtosecond lasers (X-ray region and the attosecond range), control of atomic and molecular excitations, frequency combs able to synchronize independent femtosecond lasers, coherent matter waves, and still more applications in chemical analysis, medical diagnostics, and engineering.

  17. Leukaemia near british nuclear installations

    International Nuclear Information System (INIS)

    Hubert, D.

    1991-01-01

    An excess of childhood leukaemia has been seen near some British nuclear installations, especially near the Sellafield reprocessing plant. The same result was found in a more general study including a large number of nuclear sites. Similar studies made in USA, Canada and France have been negative. Moreover, epidemiological studies made in England have discovered other childhood leukaemia clusters in areas far from nuclear facilities, and especially near potential sites of nuclear installations. Several explanations are suggested but no definite conclusion is yet possible. Doses from radioactive releases seem to be too low to account for the additional deaths from leukaemia by environmental contamination. A virus activation, which might be associated with population influx into rural isolated areas, has been considered. The hypothesis of genetic mutation induced by ionising radiation in the fathers of children with leukaemia has been made because a higher risk of leukaemia was observed for children of fathers employed at Sellafield. No firm conclusion is possible considering the small number of observed cases and the lack of excess leukaemias in the offspring of Hiroshima and Nagasaki survivors. The possibility of internal contamination, chemicals or even radon is discussed as other causes. Studies in progress might allow to find an answer to the problem of leukaemia in the vicinity of British nuclear installations [fr

  18. British coal-down to the line

    International Nuclear Information System (INIS)

    Anon.

    1993-01-01

    The long-running saga of British Coal's decline is in its final stages with virtually no change from last October when the British government announced plants to close 31 of the 50 remaining mines. That announcement produced a political outcry but having privatized the electricity industry in 1990 the government had effectively left itself up the creek without a paddle. It had no powers to force the generators to buy more coal. The status of the British coal industry is discussed

  19. Fiscal 1997 report on the results of the international standardization R and D. Study of safety of laser and light emitting diodes (LED) for human body; 1997 nendo seika hokokusho kokusai hyojun soseigata kenkyu kaihatsu. Laser, oyobi hakko diode (LED) ni taisuru jintai eno anzensei no kenkyu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-03-01

    LD and LED are used in a wide range from telecommunication systems to residential/commercial equipment. Optical semiconductor devices existing in the domain between LD and LED are also being commercialized. In the field of this project, there are a lot of contradictions about the international standards. For the purpose of promoting the common understanding of standards and improving the consistency, the paper examined mainly safety, principles of motion and various applications of laser and LED, and developed international standards for the output measuring method. At the same time, the paper systematically studied the biological safety, determined regulatory values which were backed up as safety standards, and proposed/worked out a draft for new international standardization for safety of LED. Further, by the definition of laser in general, standards related to a lot of TCs among ISO and IEC standards were harmonized for the common understanding on the basis of a common idea. 40 refs., 163 figs., 6 tabs.

  20. The power of British Energy

    International Nuclear Information System (INIS)

    Hawley, R.

    1997-01-01

    When the power industry in Britain was privatized, British Energy plc (BE), whose head office is in Edingburgh, Scotland, was founded in July 1996. It is the only power utility in the world exclusively operating nuclear power stations. Operative business has remained the responsibility of the two regional supply companies, Nuclear Electric (NE) and Scottish Nuclear (SN) which, in addition to the modern PWR nuclear generating unit of Sizewell B, have included in the new holding company their advanced gas-cooled and gas-moderated reactor (AGR) units. The older gas-graphite reactor (GGR) plants were combined in the new Magnox Electric plc, Berkeley; at some later date, this company is to be merged with another nuclear power plant operator, British Nuclear Fuels plc (BNFL). Sizewell B, which was commissioned in 1995, is the last nuclear generating unit to be started up in the United Kingdom, for the time being. In times of low raw material prices and the need for a quick return on invested capital, BE is reluctant to run the risk associated with tying up capital for a long time. Instead, the company has backfitted its plants so that the production of electricity from nuclear power in Britain in 1996 of 92,476 GWh was increased by almost 10% over the 1995 level of 84,174 GWh. In addition to modernization and rationalization at home, BE together with Sizewell B vendor Westinghouse is engaged worldwide in the development and commercialization of future advanced reactors. This ensures that the know-how accumulated will be preserved and will be available for new nuclear power plants to be built in Britain in the next century. (orig.)

  1. Introducing a standard method for experimental determination of the solvent response in laser pump, x-ray probe time-resolved wide-angle x-ray scattering experiments on systems in solution

    DEFF Research Database (Denmark)

    Kjær, Kasper Skov; Brandt van Driel, Tim; Kehres, Jan

    2013-01-01

    In time-resolved laser pump, X-ray probe wide-angle X-ray scattering experiments on systems in solution the structural response of the system is accompanied by a solvent response. The solvent response is caused by reorganization of the bulk solvent following the laser pump event, and in order...... response-the solvent term-experimentally when applying laser pump, X-ray probe time-resolved wide-angle X-ray scattering. The solvent term describes difference scattering arising from the structural response of the solvent to changes in the hydrodynamic parameters: pressure, temperature and density. We...... is demonstrated to exhibit first order behaviour with respect to the amount of energy deposited in the solution. We introduce a standardized method for recording solvent responses in laser pump, X-ray probe time-resolved X-ray wide-angle scattering experiments by using dye mediated solvent heating. Furthermore...

  2. Laser safety at high profile laser facilities

    International Nuclear Information System (INIS)

    Barat, K.

    2010-01-01

    Complete text of publication follows. Laser safety has been an active concern of laser users since the invention of the laser. Formal standards were developed in the early 1970's and still continue to be developed and refined. The goal of these standards is to give users guidance on the use of laser and consistent safety guidance and requirements for laser manufacturers. Laser safety in the typical research setting (government laboratory or university) is the greatest challenge to the laser user and laser safety officer. This is due to two factors. First, the very nature of research can put the user at risk; consider active manipulation of laser optics and beam paths, and user work with energized systems. Second, a laser safety culture that seems to accept laser injuries as part of the graduate student educational process. The fact is, laser safety at research settings, laboratories and universities still has long way to go. Major laser facilities have taken a more rigid and serious view of laser safety, its controls and procedures. Part of the rationale for this is that these facilities draw users from all around the world presenting the facility with a work force of users coming from a wide mix of laser safety cultures. Another factor is funding sources do not like bad publicity which can come from laser accidents and a poor safety record. The fact is that injuries, equipment damage and lost staff time slow down progress. Hence high profile/large laser projects need to adapt a higher safety regimen both from an engineering and administrative point of view. This presentation will discuss all these points and present examples. Acknowledgement. This work has been supported by the University of California, Director, Office of Science.

  3. The Contemporaneity of the British Survey.

    Science.gov (United States)

    Dodson, Charles Brooks

    The seeming remoteness of material studied in a British literature survey course can be frustrating for the teacher. Students may find little relevance in the story of Beowulf or the descriptions of Gulliver's voyages. However, instructors can highlight the contemporaneity of British literary texts by drawing parallels to modern times. For…

  4. British Celtic influence on English phonology

    NARCIS (Netherlands)

    Laker, Stephen

    2010-01-01

    The dissertation assesses the influence of British Celtic on the phonological development of English during and shortly after the Anglo-Saxon settlement period, ca. AD 450–700. By reconstructing and then comparing the phonological systems of both British Celtic and English at the time of contact, an

  5. There's No Such Thing as British Art

    Directory of Open Access Journals (Sweden)

    Richard Johns

    2015-11-01

    Full Text Available “Conversation Piece” is a British Art Studies series that draws together a group of contributors to respond to an idea, provocation or question. The conversation will develop as more respondents enter the debate. Fifteen contributors respond to the provocation "There's No Such Thing as British Art".

  6. African Journals Online: Virgin Islands (British)

    African Journals Online (AJOL)

    African Journals Online: Virgin Islands (British). Home > African Journals Online: Virgin Islands (British). Log in or Register to get access to full text downloads. Username, Password, Remember me, or Register · Browse By Category · Browse Alphabetically · Browse By Country · List All Titles · Free to read Titles This Journal ...

  7. The British Show in Australia, 1985

    Directory of Open Access Journals (Sweden)

    Anthony Bond

    2016-07-01

    Full Text Available In 1984–85, The British Show, an exhibition largely made up of New British Sculpture, was curated for Australia and New Zealand. This essay discusses the context and effects of the exhibition on art in Australia. It also seeks to define the sources of originality and innovation of the artists included.

  8. Evaluation of the standard normal variate method for Laser-Induced Breakdown Spectroscopy data treatment applied to the discrimination of painting layers

    Science.gov (United States)

    Syvilay, D.; Wilkie-Chancellier, N.; Trichereau, B.; Texier, A.; Martinez, L.; Serfaty, S.; Detalle, V.

    2015-12-01

    Nowadays, Laser-Induced Breakdown Spectroscopy (LIBS) is frequently used for in situ analyses to identify pigments from mural paintings. Nonetheless, in situ analyses require a robust instrumentation in order to face to hard experimental conditions. This may imply variation of fluencies and thus inducing variation of LIBS signal, which degrades spectra and then results. Usually, to overcome these experimental errors, LIBS signal is processed. Signal processing methods most commonly used are the baseline subtraction and the normalization by using a spectral line. However, the latter suggests that this chosen element is a constant component of the material, which may not be the case in paint layers organized in stratigraphic layers. For this reason, it is sometimes difficult to apply this normalization. In this study, another normalization will be carried out to throw off these signal variations. Standard normal variate (SNV) is a normalization designed for these conditions. It is sometimes implemented in Diffuse Reflectance Infrared Fourier Transform Spectroscopy and in Raman Spectroscopy but rarely in LIBS. The SNV transformation is not newly applied on LIBS data, but for the first time the effect of SNV on LIBS spectra was evaluated in details (energy of laser, shot by shot, quantification). The aim of this paper is the quick visualization of the different layers of a stratigraphic painting sample by simple data representations (3D or 2D) after SNV normalization. In this investigation, we showed the potential power of SNV transformation to overcome undesired LIBS signal variations but also its limit of application. This method appears as a promising way to normalize LIBS data, which may be interesting for in-situ depth analyses.

  9. Laser safety tools and training

    CERN Document Server

    Barat, Ken

    2008-01-01

    Lasers perform many unique functions in a plethora of applications, but there are many inherent risks with this continually burgeoning technology. Laser Safety: Tools and Training presents simple, effective ways for users in a variety of facilities to evaluate the hazards of any laser procedure and ensure they are following documented laser safety standards.Designed for use as either a stand-alone volume or a supplement to Laser Safety Management, this text includes fundamental laser and laser safety information and critical laser use information rarely found in a single source. The first lase

  10. Absolute, pressure-dependent validation of a calibration-free, airborne laser hygrometer transfer standard (SEALDH-II) from 5 to 1200 ppmv using a metrological humidity generator

    Science.gov (United States)

    Buchholz, Bernhard; Ebert, Volker

    2018-01-01

    Highly accurate water vapor measurements are indispensable for understanding a variety of scientific questions as well as industrial processes. While in metrology water vapor concentrations can be defined, generated, and measured with relative uncertainties in the single percentage range, field-deployable airborne instruments deviate even under quasistatic laboratory conditions up to 10-20 %. The novel SEALDH-II hygrometer, a calibration-free, tuneable diode laser spectrometer, bridges this gap by implementing a new holistic concept to achieve higher accuracy levels in the field. We present in this paper the absolute validation of SEALDH-II at a traceable humidity generator during 23 days of permanent operation at 15 different H2O mole fraction levels between 5 and 1200 ppmv. At each mole fraction level, we studied the pressure dependence at six different gas pressures between 65 and 950 hPa. Further, we describe the setup for this metrological validation, the challenges to overcome when assessing water vapor measurements on a high accuracy level, and the comparison results. With this validation, SEALDH-II is the first airborne, metrologically validated humidity transfer standard which links several scientific airborne and laboratory measurement campaigns to the international metrological water vapor scale.

  11. British women's attitudes to surrogacy.

    Science.gov (United States)

    Poote, A E; van den Akker, O B A

    2009-01-01

    There has been little interest in the research literature on public opinions regarding assisted conception and surrogacy, particularly in European countries, despite the growing evidence showing that problems in adaptation and coping may be related to perceived normative values. This study investigated British women's attitudes to surrogacy using components of the theory of planned behaviour (TPB). Questionnaires on attitudes to surrogacy and reasons for parenthood were completed by 187 women from the general public. Significant socio-demographic differences were found between women who were possibly willing (n = 76) and those who were unwilling (n = 111) to become surrogate mothers. General attitudes to surrogacy also differed between groups (P = 0.000). This study supported the predictive utility of components of the TPB, and differentiated adequately between groups on attitudes to recruitment for surrogacy (P = 0.000), the consequences of surrogacy (P = 0.000), factors that induce people to become surrogates (P = 0.000), social support (P = 0.000), having personal control (P = 0.002) and reasons for parenthood (P = 0.000). Age (P = 0.000), attitudes to advertising (P = 0.02) and the consequences of surrogacy (P = 0.05) predicted (un)willingness to become a potential surrogate mother. Further research is needed with larger sample sizes of potential surrogates to determine whether the predictive attitudes reported here translate to actual behaviours. The larger group which was not interested in considering becoming a surrogate scored significantly more negatively on all attitudes towards surrogacy. The negative attitudes reported by the 'unwilling to consider being a surrogate' group may reflect attitudes held by the majority of the population and are likely to be influenced by reports of stigma associated with surrogacy.

  12. The British Empire and the English Curriculum.

    Science.gov (United States)

    Thron, E. Michael

    1987-01-01

    Examines the recent call for English departments to recognize literature that falls outside the British and American tradition. Suggests that we recognize English as a world language and choose books to teach accordingly. (JC)

  13. British and American attitudes toward credit cards.

    Science.gov (United States)

    Yang, Bijou; James, Simon; Lester, David

    2006-04-01

    American university students owned more than twice as many credit cards as British university students. However, scores on a credit card attitude scale predicted the number of cards owned by respondents in both countries.

  14. Efficiency Studies in the British Universities.

    Science.gov (United States)

    Lockwood, Geoffrey

    1986-01-01

    The background, purposes, and methods of institutional efficiency studies conducted at selected British universities are discussed. The evaluations focused on financial management, purchasing, and building maintenance and space utilization. (MSE)

  15. Some Differences Between British And American English

    OpenAIRE

    Tarigan, Ellemina

    2011-01-01

    Kertas karya ini berjudul “Some Differences Between British and American English”. Kertas karya ini memaparkan secara singkat tentang perbedaan antara British and American English baik dalam speling, grammar, maupun vocabulary sehingga akan diketahui secara jelas perbedaan diantara keduanya. Metode yang digunakan dalam penelitian ini adalah metode kepustakaan dengan membaca beberapa buku bahasa Inggris sebagai bahan referensi yang dapat mendukung topik. Dari pemaparan diatas ada beberapa hasi...

  16. British Teachers' Transnational Work within and beyond the British Empire after the Second World War

    Science.gov (United States)

    Whitehead, Kay

    2017-01-01

    Focusing on British graduates from Gipsy Hill Training College (GHTC) in London, this article illustrates transnational history's concerns with the reciprocal flows of people and ideas within and beyond the British Empire. GHTC's progressive curriculum and culture positioned women teachers as agents of change, and the article highlights the lives…

  17. Coalbed gas : responsibility developed for British Columbians

    Energy Technology Data Exchange (ETDEWEB)

    Coward, M. [British Columbia Ministry of Energy and Mines, Victoria, BC (Canada)

    2005-07-01

    This presentation provided a general background of coalbed gas (CBG) development opportunities in British Columbia. It included a review of the coal resource and geology; the regulatory process and other useful information for potential investors; geoscience and the environment; and community and First Nations issues. CBG activity in British Columbia is in the early stage of exploration. Fifty wells have been evaluated since 1999 and it is expected that CBG will play a large role in the province's future energy supplies. The common concerns that have been expressed by various communities throughout the province include responsible development and mitigating any impacts on land, air, water, wildlife and people. In response to public interest, the British Columbia Ministry of Energy and Mines has taken measures to regulate the environment and produced water. The government's approach to communities involves consultation with First Nations, which are key to resource development. tabs., figs.

  18. British firms mark progress off Viet Nam

    International Nuclear Information System (INIS)

    Anon.

    1992-01-01

    British companies are making more inroads in exploring for oil and gas off Viet Nam. British Gas plc won a 25 year production sharing contract for a license off southern Viet Nam in the South China Sea. Meantime, London independent Lasmo plc started seismic surveys on the block adjoining the British Gas block. Separately, Thailand and Viet Nam have reached agreement to jointly explore for and develop oil and gas found in waters claimed by both countries. Plans call for the two countries to draw up joint development plans covering oil and gas resources in the southeastern fringe of the Gulf of Thailand. Bangkok officials say they would have preferred to delineate maritime boundaries with Hanoi, but opted for the joint development accord, noting that Thailand and Malaysia had taken 12 years to resolve a similar dispute

  19. Low-power colorless all-optical 2R regeneration of 25 Gb/s NRZ signals using a standard DFB laser

    DEFF Research Database (Denmark)

    Huybrechts, Koen; Peucheret, Christophe; Seoane, Jorge

    2010-01-01

    We demonstrate the first all-optical 2R regeneration of 25 Gbit/s NRZ data based on hysteresis in a DFB laser. The scheme results in BER improvement, exhibits low power consumption and is effective after fiber transmission....

  20. Topical eflornithine hydrochloride improves the effectiveness of standard laser hair removal for treating pseudofolliculitis barbae: a randomized, double-blinded, placebo-controlled trial.

    Science.gov (United States)

    Xia, Yang; Cho, Sunghun; Howard, Robin S; Maggio, Kurt L

    2012-10-01

    Pseudofolliculitis barbae (PFB) significantly impacts the military population, especially deployed personnel. This study was designed to determine whether the addition of topical eflornithine to hair laser treatment would improve efficacy in treating PFB. This was a randomized, double-blinded, placebo-controlled, paired (right and left neck) comparison study examining a combination of eflornithine and hair laser versus placebo and hair laser for the treatment of PFB. In all, 27 male patients with clinical PFB were treated with a long-pulsed neodymium:yttrium-aluminum-garnet laser with an energy fluence of 25 to 30 J/cm(2), a pulse duration of 20 to 30 milliseconds, and a 10-mm spot size to the entire bearded neck region. The laser treatment was performed every 4 weeks for a total of 16 weeks. Between laser treatments, patients applied eflornithine and placebo creams twice daily to opposite sides of the bearded neck region. The number of hairs and inflammatory papules were counted bilaterally at each visit. The eflornithine side had a statistically significant decrease in the number of hairs and inflammatory papules compared with the placebo side. At 16 weeks, the eflornithine side had a median hair reduction of 99.5% from baseline (range 48.5%-100.0%), whereas the placebo side had an 85.0% median hair reduction from baseline (range 50.5%-94.5%), P less than .001. Patients were not followed up beyond 16 weeks. The addition of topical eflornithine to hair laser treatment decreased hairs and inflammatory papules faster when compared with hair laser therapy alone in the treatment of PFB. Copyright © 2011 American Academy of Dermatology, Inc. Published by Mosby, Inc. All rights reserved.

  1. UKTI's British Business Embassy Exhibition 2014

    OpenAIRE

    Swann, David

    2014-01-01

    UK Trade & Investment’s British Business Embassy on 9th June will launch the International Festival of Business (IFB) in Liverpool. \\ud \\ud Held at St George’s Hall, opposite Lime Street Station in the centre of Liverpool, the one day event will showcase the best of British, building on the success of the Great campaign. It will provide a platform for high level contacts from the global business community where influential corporate and policy makers will have the opportunity to network, meet...

  2. Four Centuries of British Economic Growth

    DEFF Research Database (Denmark)

    Madsen, Jakob B.; Ang, James B.; Banerjee, Rajabrata

    2010-01-01

    Using long historical data for Britain over the period 1620–2006, this paper seeks to explain the importance of innovative activity, population growth and other factors in inducing the transition from the Malthusian trap to the post-Malthusian growth regime. Furthermore, the paper tests the ability...... of two competing second-generation endogenous growth models to account for the British growth experience. The results suggest that innovative activity was an important force in shaping the Industrial Revolution and that the British growth experience is consistent with Schumpeterian growth theory....

  3. A critical history of British earthquakes

    OpenAIRE

    R. M. W. Musson

    2004-01-01

    This paper reviews the history of the study of historical British earthquakes. The publication of compendia of British earthquakes goes back as early as the late 16th Century. A boost to the study of earthquakes in Britain was given in the mid 18th Century as a result of two events occurring in London in 1750 (analogous to the general increase in earthquakes in Europe five years later after the 1755 Lisbon earthquake). The 19th Century saw a number of significant studies, culminating in th...

  4. High vowels in southern British English: /u/-fronting does not result in merger

    NARCIS (Netherlands)

    Chládková, K.; Hamann, S.R.

    2011-01-01

    This study reports on the acoustic properties of the front vowel /i/ and the fronted back vowel /u/ in Standard Southern British English (SSBE). These two vowels are realized with very similar (and for some tokens overlapping) values of F2, so that F2 does not seem to be a reliable acoustic cue for

  5. Real/Life: New British Art and the Reception of Contemporary British Art in Japan

    Directory of Open Access Journals (Sweden)

    Kajiya Kenji

    2016-07-01

    Full Text Available This essay explores the ways in which the exhibition Real/Life: New British Art was conceived and received in Japan, where contemporary British art has been shown since the 1960s. Taking place at five museums in the country between 1998 and 1999, the exhibition aimed to showhow British artists in the 1990s struggled with realities, internal and external, but its response was not as satisfactory as was expected. The essay examines the exhibition as a turning point for the transformation of exhibition culture in Japan from nationally themed exhibitions to showcases of contemporary art in the global context.

  6. Laser Technology.

    Science.gov (United States)

    Gauger, Robert

    1993-01-01

    Describes lasers and indicates that learning about laser technology and creating laser technology activities are among the teacher enhancement processes needed to strengthen technology education. (JOW)

  7. British Writers; Modules for Teacher Corps.

    Science.gov (United States)

    Gilliard, Fred

    This booklet, containing eight instructional modules on works by major British writers, can be used either within a lower-level literature course for non-English majors or in a survey course for English majors. The first four modules focus on works from the early English period through the Elizabethan Age: "Beowulf,""Sir Gawain and the Green…

  8. British Nuclear Fuels - a dirty business

    International Nuclear Information System (INIS)

    Bunyard, P.

    1983-01-01

    The radioactive discharges from British Nuclear Fuels Sellafield, Cumbria, reprocessing plant to the sea are discussed. Statements that have been made by various individuals and groups about the contamination of the sea, the coast and places inland, and the biological effects of plutonium and americium, are discussed in detail. Particular stress is placed on statements about increased incidence of cancers. (U.K.)

  9. Considerations for Education Reform in British Columbia

    Science.gov (United States)

    Santos, Ana

    2012-01-01

    Countries around the world refer to twenty-first century education as essential to maintaining personal and national economic advantage and draw on this discourse to advocate for and embark on educational reform. This paper examines issues around education reform, particularly in British Columbia. It argues that reformers should give careful…

  10. British Defense Policy: A New Approach?

    Science.gov (United States)

    1988-12-14

    by the 15th century. It was soon to be followed by the discovery of the New World, Newfoundland fishing areas, and sea routes to the Far East during... Zanzibar , Borneo, Tanganyika, 65 Uganda, Mauritus, Malaya and Korea. 13 Defense spending actually reflected the ambitious nature of the British pursuit of

  11. subordination across ghanaian and british newspaper editorials

    African Journals Online (AJOL)

    this gap. It examines the use of subordinate clause-types in editorials across Ghanaian and British newspapers. The aim is ... analyze the situational background of the variety in question, the linguistic characteristics and the functional relationship ... careful reading for comprehension. Conversely, the limited time for spoken ...

  12. A Cultural History of British Euroscepticism

    NARCIS (Netherlands)

    Spiering, M.

    2015-01-01

    Britain is the cradle of Euroscepticism. The term is a British invention, reflecting the strong sentiments against continued membership of the European institutions. Instead of providing yet another overview of the politics of the troubled relationship, this book lays bare the root cause, which is

  13. Spitsbergen - Imperialists beyond the British Empire

    NARCIS (Netherlands)

    Kruse, Frigga; Hacquebord, Louwrens

    2012-01-01

    This paper looks at the relationship between Spitsbergen in the European High Arctic and the global British Empire in the first quarter of the twentieth century. Spitsbergen was an uninhabited no man's land and comprised an unknown quantity of natural resources. The concepts of geopolitics and New

  14. Demand for wildlife hunting in British Columbia

    NARCIS (Netherlands)

    Sun, L.; Kooten, van G.C.; Voss, G.M.

    2005-01-01

    We present estimates of the demand for hunting licenses by residents and nonresidents in British Columbia for the period 19712000. We obtain estimates of both short-run and long-run price elasticities and discuss their revenue implications for future fee increases. We find the demand by nonresidents

  15. ARCTIC VECTOR OF BRITISH ENERGETIC STRATEGY

    Directory of Open Access Journals (Sweden)

    Natalia Valerievna Eremina

    2017-03-01

    Full Text Available The aim of the article is to reveal the forms, methods, content of British strategy in Arctic. Arctic is becoming the area of international cooperation among, first of all, Arctic states. Britain has ambitions to get the status of so-called “subarctic state” to prove its international leadership and acquire guarantees of energetic security. Now Britain has been elaborating the two strategies: military and scientific ones. The main instrument to solve the tasks for Britain is to participate in international structures, connected with Arctic. The article pays attention to the aspects that were not previously analyzed, such as: reasons of British interests in Arctic, bilateral and multilateral relationships between Britain and its partners, first of all, cooperation between Russia and Britain; British institutions; positive and negative aspects of British Arctic strategy; factors that have impact on its evolution, mainly EU and Scottish factors. The research allowed to make the conclusion that Britain does not have enough instruments to have a strong disposition in Arctic, though it plans to accelerate its participation in Arctic organizations. The article is based upon system and structural analysis.

  16. Stress Variation in British and American English.

    Science.gov (United States)

    Berg, Thomas

    1999-01-01

    Presents a comprehensive analysis of lexical-stress variation in British and American English. A comparison of the pronunciations of all 75,000 entries in a dictionary by John Wells (1990) yields 932 stress-divergent words. The list of words is appended. (Author/VWL)

  17. Four former British mining settlements on Spitsbergen

    NARCIS (Netherlands)

    Kruse, Frigga; Claughton, P.; Mills, C.

    2011-01-01

    The LASHIPA project participated in the recent International Polar Year to evaluate the large-scale historical exploitation of polar areas. This sub-project looks at the role of British actors in the economic and geopolitical development of the European High Arctic during the early twentieth

  18. British physics Newton's law of funding

    CERN Multimedia

    2007-01-01

    In Britain, fundamental physics is in a pickle ISAAC NEWTON, besides being the founder of modern physics, was also master of Britain's mint. That is a precedent which many British physicists must surely wish had become traditional. At the moment, money for physics is in short supply in Britain.

  19. Drivers of cousin marriage among British Pakistanis.

    Science.gov (United States)

    Shaw, Alison

    2014-01-01

    Why has the apparently high rate of cousin marriage among Bradford Pakistanis been sustained, 50 years since Pakistani migration to Britain began? A review of the anthropological literature on Pakistani migration and settlement, British Pakistani marriage patterns and the phenomenon of transnational marriage. British Pakistanis are diverse in regional origins and social class characteristics, with many Bradford Pakistanis originating from the Mirpur district and northern Punjab. British Pakistani marriages often involve a partner from Pakistan who joins a spouse in the UK. Transnational marriage of first cousins offers relatives in Pakistan opportunities for a 'better' life in the West and are important for British Pakistanis for economic, social, cultural and emotional reasons. These processes are also differentially influenced by region of origin and class characteristics in Pakistan as well as by education, employment and locality in Britain. The pattern observed in Bradford may not be applicable nationally. Further research examining marital decisions over several generations in families differing by social class, region of origin in Pakistan and locality in Britain is necessary to contextualise the findings from Bradford. © 2014 S. Karger AG, Basel

  20. Telephone Operators' Resistance to British Colonial Administration ...

    African Journals Online (AJOL)

    This paper aims to write the history of yet another form of resistance to colonial rule in British Africa with a focus on telephone operators in the erstwhile Cameroons Province. The pith and kernel of the paper therefore is to show how telephone operators resisted the colonial administration. This typology of resistance is yet to ...

  1. Standard English and Language Attitudes

    OpenAIRE

    ソランキ, ネイディン

    2005-01-01

    This paper investigates the attitudes and opinions surrounding Standard English (SE) within the United Kingdom. The definition of SE, for the purposes of this study, is standard grammar and standard pronunciation of southern English, commonly referred to as 'BBC English'. The subject of SE and attitudes towards different accents and dialects of British English is emotive and attracts strong opinions. The main issues discussed here are the place of language in society, the social implications ...

  2. Irish (Republic) versus British (North West) orthopaedic trainees: what are the differences?

    LENUS (Irish Health Repository)

    Banks, L N

    2012-02-01

    British Trainees have gradually had their working week curtained over the last 8 years. The Republic of Ireland Trainees have not been subjected to the European Working Time Directive prior to 2009 and have therefore worked on average, more hours than their British counterparts. We wanted to see if the differing schemes had an impact on recruiting and training orthopaedic surgeons. We surveyed Republic of Ireland orthopaedic specialist registrars (SpRs) and North West (NW) British SpRs\\/specialist trainees (ST3 and above) to see if there were any discernable differences in working patterns and subsequent training exposure. A standard proforma was given to Irish Trainees and to NW SpRs\\/STs at their National or regional teaching (January\\/February 2009). 62% of Irish and 47% of British NW Trainees responded. Irish trainees were more likely to have obtained a post-graduate degree (p = 0.03). The Irish worked more hours per week (p < 0.001) doing more trauma operative lists (p = 0.003) and more total cases per 6 months than the NW British (p = 0.003). This study suggests that more hours worked, equals more operative exposure, without detriment to the academic side of training. Obviously it is not possible to say whether fewer operations make for a poorer surgeon, but the evidence suggests that it may be true.

  3. FROM STABLE LASERS TO OPTICAL-FREQUENCY CLOCKS:. Merging the UltraFast and the UltraStable, for a New Epoch of Optical Frequency Measurements, Standards, & Applications

    Science.gov (United States)

    Hall, J. L.; Ye, J.; Ma, L.-S.; Peng, J.-L.; Notcutt, M.; Jost, J. D.; Marian, A.

    2002-04-01

    This is a report on behalf of the World Team of Stable Laser and Optical Frequency Measurement Enthusiasts, even if most detailed illustrations draw mainly from our work at JILA. Specifically we trace some of the key ideas that have led from the first stabilized lasers, to frequency measurement up to 88 THz using frequency chains, revision of the Definition of the Metre, extension of coherent frequency chain technology into the visible, development of a vast array of stabilized lasers, and finally the recent explosive growth of direct frequency measurement capability in the visible using fs comb techniques. We present our recent work showing a Molecular Iodine-based Optical Clock which delivers, over a range of time scales, rf output at a stability level basically equivalent to the RF stability prototype, the Hydrogen Maser. We note the bifurcation between single-ion-based clocks - likely to be the stability/reproducibility ultimate winners in the next generation - and simpler systems based on gas cells, which can have impressive stabilities but may suffer from a variety of reproducibility-limiting processes. Active Phase-Lock synchronization of independent fs lasers allows sub-fs timing control. Copies of related works in our labs may be found/obtained at our website .

  4. The West African currency board and economic integration of British ...

    African Journals Online (AJOL)

    WACB) as an economic integration effort in British West Africa. Through a collaborative effort between this public institution and a private company, the Bank of British West Africa, British West African colonies were not only unified but also the way ...

  5. British International Schools: The Deployment and Training of Teaching Assistants

    Science.gov (United States)

    Tarry, Estelle

    2011-01-01

    This article reports on research carried out on behalf of the Council of British International Schools (COBIS) as to the role and deployment of British international school teaching assistants. Through questionnaires and a follow up open discussion with headteachers from British international schools it was found that, due to the differing…

  6. Experiences within British Steel since 1989

    International Nuclear Information System (INIS)

    Harvey, D.S.

    1999-01-01

    The experience of British steel is that there is a serious and continuing threat of radioactive material being included in scrap delivered to steelworks. All scrap entering the steelworks is monitored for radioactivity. The scrap suppliers and the national authorities have recognized the difficulties caused by the presence of radioactivity in scrap, and are working to minimise the problem. Both domestic and imported scrap has been found to contain radioactivity, but the imported scrap is much more likely to contain radioactivity. If radioactivity is found the Environmental Agency is informed, and established procedures are used to minimise the hazard, and to isolate the radioactivity. Detecting, and isolating radioactive scrap, and preventing it being re-melted in the steelmaking process, is part of the overall commitment of British Steel to work safely, and to provide a safe, good quality, product (author)

  7. Flood Hazard Management: British and International Perspectives

    Science.gov (United States)

    James, L. Douglas

    This proceedings of an international workshop at the Flood Hazard Research Centre (Queensway, Enfield, Middlesex, U.K.) begins by noting how past British research on flood problems concentrated on refining techniques to implement established policy. In contrast, research covered in North American and Australian publications involved normative issues on policy alternatives and administrative implementation. The workshop's participants included 16 widely recognized scientists, whose origins were about equally divided between Britain and overseas; from this group the workshop's organizers expertly drew ideas for refining British urban riverine flood hazard management and for cultivating links among researchers everywhere. Such intellectual exchange should be of keen interest to flood hazard program managers around the world, to students of comparative institutional performance, to those who make policy on protecting people from hazards, and to hydrologists and other geophysicists who must communicate descriptive information for bureaucratic, political, and public decision- making.

  8. Provincial land use planning in British Columbia

    International Nuclear Information System (INIS)

    Mitchell, W.

    1998-01-01

    The efforts being made to include Aboriginal communities in land use planning in British Columbia are discussed. British Columbia is in the midst of historic changes with respect to land and resource allocation, use and management. Historic trends in land use allocation and management are contrasted with land use planning and resource management of today. The impact of provincial government moves to double park space within the province, and the Protected Areas Strategy initiative will have on the natural gas and petroleum industry is discussed. New efforts being made to include First Nations directly in land use planning discussions in ways that do not prejudice treaty negotiations, are reviewed. Creation of a new Oil and Gas Commission in the Fort St. John area, is cited as the most recent example of the interconnections between First Nations communities and other public and industry stakeholders in land use planning in the province

  9. Self-Esteem: A Cross-Cultural Comparison of British-Chinese, White British and Hong Kong Chinese Children.

    Science.gov (United States)

    Chan, Yiu Man

    2000-01-01

    Evaluates the self-esteem scores of 1303 children, including Chinese children from Britain and Hong Kong and white British children, using the Coopersmith Self-Esteem Inventory. Finds that British Chinese have significantly higher self-esteem than the Hong Kong children, but there is little difference among white British children. (CMK)

  10. Electricity trade: Generating benefits for British Columbians

    International Nuclear Information System (INIS)

    1994-01-01

    Electricity has been traded in British Columbia since the turn of the century. In 1988, the provincial government established the British Columbia Power Exchange Corporation (Powerex) to conduct electricity trade activities in order to make the most efficient use of the electrial system and generate benefits for British Columbians. The trade is made possible by an interconnected system linking producers and consumers in western Canada and the USA. Provincial participants in the trade include British Columbia Hydro, independent power producers, and cogenerators. Benefits of the electricity trade include generation of revenue from sale of surplus power, being able to buy electricity when the mainly hydroelectric provincial system is in a drought condition or when major shutdowns occur, and enabling postponement of development of new power projects. Powerex conducts its trade under provincial and federal permits and licenses. Different types of trade contracts are negotiated depending on the amount and availability of electricity and the kind of trade being conducted. Exchanges and coordination agreements allow transfer and return between utilities with no net export occurring, allowing balancing of loads between different reigons. Surplus electricity is bought or sold on a short- or long-term basis and on firm or non-firm terms. Electricity exports are not subsidized and are only allowed if the electricity is surplus to provincial needs and can be sold at a profit. A new provincial policy allows private industry to export long-term firm electricity; this involves construction of new private-sector generating facilities solely for the purpose of export. 1 fig

  11. British Engineers and Africa 1875-1914

    DEFF Research Database (Denmark)

    Andersen, Casper

    the imperial diasporas, identities and networks that developed as the British engineering profession established connections on the African continent. Using a wide range of primary sources that include correspondence, diaries, technical reports, institutional minutes and periodicals, Andersen reconstructs...... the networks and activities of Britain's engineers while focusing on London as a centre of imperial expansion. By treating Britain and the empire as an interconnected zone heanalyses the ways in whichideas , people and technologies circulated during the critical period....

  12. Did Senior British Officers Effectively Lead Change?

    Science.gov (United States)

    2014-12-12

    must create a vision, devise a strategy, and implement it. They require buy -in from the wider Army but this support is not guaranteed. Indeed, many...investigate. However, there is a compulsion element to any change in the British Army. Orders are orders after all. How much room there is to...support for change evident throughout? Whether Senior Leaders had any power to influence change is important due to the compulsion aspect of the

  13. British Columbia natural gas: Core market policy

    International Nuclear Information System (INIS)

    1988-06-01

    The core market for natural gas in British Columbia is defined as all natural gas consumers in the residential, institutional, commercial, and industrial sectors not currently purchasing natural gas directly and not exempted from the core market by the British Columbia Utilities Commission (BCUC). The intent of the definition is to include all customers who must be protected by contracts which ensure long-term security of supply and stable prices. Core market customers are excluded from direct natural gas purchase and will be served by distribution utilities. A customer may apply to BCUC to leave the core market; such an application may be approved if it is demonstrated that the customer has adequate long-term natural gas supplies or alternative fuel supplies to protect him from supply interruptions. The non-core market is defined as all large industrial customers who elect to make their own natural gas supply arrangements and who can demonstrate to the BCUC sufficient long-term natural gas supply protection or alternative fuel capability to ensure security of the industry. Non-core market customers have full and open access to the competitive natural gas market. The British Columbia government will not apply its core market policy to other jurisdictions through Energy Removal Certificates

  14. Markets for British Columbia natural gas

    International Nuclear Information System (INIS)

    Maerz, D.H.; Coad, L.A.

    1990-11-01

    An evaluation is presented of the outlook for the British Columbia natural gas industry and the fundamentals underlying both the increase in activity and the longer-term outlook for the natural gas sector are examined. The basis for the analysis was the North American Regional Gas (NARG) model, to which a number of modifications were made. The level of natural gas resource assumed for northeastern British Columbia corresponds to an ultimate potential of 50 Tcf. Significant growth in production over the outlook period (1988-2007) is predicted. High rates of utilization on the Westcoast system underscore the need for significant capacity expansion if the production levels projected for the mid-1990s are to be achieved. Natural gas production is projected to be sustained at the 800 billion cubic foot level from the mid-1990s onwards, with the majority of the production growth occurring between 1992 and 1997. Significant growth in exports is projected, especially when capacity is available to move gas supplies directly into the California and Rocky Mountain regions in the US. These two transport corridors represent over half the increase in British Columbia production between 1992 and 1997. 53 refs., 15 figs., 26 tabs

  15. British Energy privatisation - 18 months on

    International Nuclear Information System (INIS)

    McRoberts, Doug

    1998-01-01

    The TV advertisement which launched the privatisation of British Energy in the summer of 1996 - but just how successful has that privatisation been? And who has benefited - shareholders? The nuclear industry? Our own workforce? Last year, as reported to PIME 97 that the privatisation itself had been successfully completed - following the restructuring of the UK nuclear generation industry, and the creation of British Energy, a new name in the UK - and world energy scene. In simple terms, that privatisation has certainly succeeded - our share price since privatisation has more than doubled, from 2 pounds to well over 4 ponds. Over the last year, it has consistently outperformed the UK electricity sector - particularly over the last winter; it has also out-performed the FR Share Index over the same period, and in December British Energy became one of the UK top 100 listed companies, included in the FTSE 100 having started life at around number 130. This in turn has meant that a number of high quality institutions have taken a second look at British Energy and begun to invest in us as part of a portfolio of FTSE 100 companies. Our success as a private sector company could only be built on the solid foundation of successes as a nuclear utility. Over the five years from 1992 to 1997, our output went up by 64 as Sizewell B came on line and the AGRs achieved their design load factors at last. Safety remains our top priority, and while our profitability increased, so did our safety ratings - accident frequency rates came down by 60%, and collective radiation exposure to our workforce came down 58%. As a result of all this achievement, coupled with reduction in our total workforce, our productivity went up by over 100% - surely proof that nuclear can succeed in a competitive, deregulated electricity market. For future, it has been even more important to sustain that initial success to grow and develop British Energy as a company. The results are there for all to see. In the

  16. Trace elements in landfill calcite: a comparison of solution & laser ablation ICP-MS and calibration to different standard material (SRM NIST glass and USGS MACS carbonate)

    Czech Academy of Sciences Publication Activity Database

    Strnad, L.; Ettler, V.; Mihaljevič, M.; Hladil, Jindřich

    2008-01-01

    Roč. 9, - (2008), s. 235-236 ISSN 1885-7264. [Reunión de la Sociedad Española de Mineralogía /28./ ; Reunión de la Sociedad Española de Arcillas /21./. Zaragoza, 16.09.2008-19.09.2008] R&D Projects: GA AV ČR IAA300130702 Institutional research plan: CEZ:AV0Z30130516 Keywords : trace elements * reference material * carbonate * ICP-MS * laser ablation Subject RIV: DB - Geology ; Mineralogy http://www.ehu.es/sem/macla_pdf/macla9/macla9_235.pdf

  17. Malaria in inter-war British India.

    Science.gov (United States)

    Bynum, W F

    2000-06-01

    British India was an important site of much important malaria research. Although Ronald Ross left India in 1899, a number of malariologists continued the task of evaluating the incidence and distribution of malaria in the country. Implementing practical solutions was hampered by formidable social and economic problems. This paper examines the Indian situation in the late 1920s, through a retrospective selection of writings chosen by J.A. Sinton for reproduction in an early issue of 'The records of the malaria survey of India', and the analysis of the Indian malaria situation through a visit of the League of Nations Malaria Commission in 1929.

  18. Race, history, and black British jazz

    OpenAIRE

    Toynbee, Jason

    2013-01-01

    This article traces the history of black British jazz across five moments from 1920 to the present. It also makes a theoretical argument about the nature of race and its connection both with music and belonging to the nation. Race is indeed a musical-discursive construction, as has been argued in the literature about culture and ethnicity over the last thirty years or so. But it is a social structure too, and the contradictions that result are key to understanding the race-music relationship.

  19. Frisky and Bitchy: Unlikely British Olympic Heroes?

    OpenAIRE

    Williams, Jean

    2010-01-01

    This article begins with a brief biographical overview of the career of bridge player and writer Rixi Markus (1910–1992). To a lesser extent, it gives an account of her sometime partner Fritzi Gordon (1916–1992). Questions of Britishness are specifically informed by Markus’s 1988 memoir, A Vulnerable Game. In her twelfth and final book, Rixi details her experiences as a Jewish emigrant who escaped to London after the Austrian Anschluss in 1938. Assimilation, acculturation and a measure of ang...

  20. The Great Wedge: A Spectral Intensity Standard to Quantify Chromatic Aberration and Validate Temperature Gradient Measurements in the Laser Heated Diamond Cell

    Science.gov (United States)

    Benedetti, L. R.; Kavner, A.

    2006-12-01

    Temperature governs many important properties of Earth and planetary materials, including electrical and thermal conductivity, phase stability and equation of state. Much of what we understand about the physical and chemical properties of the deep Earth must be determined experimentally at the conditions of its interior. Laser heating samples in a diamond anvil cell (DAC), especially in conjunction with synchrotron-based X-ray diffraction, is a valuable tool to examine mineral behavior at the relevant high pressures and temperatures. Unfortunately, data interpretation is limited because of difficulties in temperature measurement. Small sample size coupled with the severe heat flow boundary condition due to the high thermal mass of the diamonds results in steep temperature gradients that complicate the interpretation of experimental data. Much effort has been invested in mitigating these effects, including attempts to increase the size of the laser-induced hotspot. However, without a method to quantify temperature gradients, these methods cannot be evaluated. In addition, accurate measurement of temperature gradients makes direct measurement of transport properties, such as thermal conductivity, possible. Attempts to measure temperature gradients by spectroradiometric techniques are compromised by the chromatic effects of the optical elements between the hot sample and the spectrometer. A source of known temperature gradient, can be used to calibrate chromatic errors in an optical system. However, the engineering of such a device has been elusive. Here we present a new technique to quantify the chromatic aberration of any spectroradiometric system, in order to validate the suitability of an optical system for measuring temperatures in the laser-heated DAC, enabling precise measurement of radial temperature gradients of a laser-heated hotspot. Our method employs a material with known spectral intensity variations over spatial scales consistent with hotspot sizes of

  1. Laser Safety Inspection Criteria

    International Nuclear Information System (INIS)

    Barat, K

    2005-01-01

    A responsibility of the Laser Safety Officer (LSO) is to perform laser safety audits. The American National Standard Z136.1 Safe use of Lasers references this requirement in several sections: (1) Section 1.3.2 LSO Specific Responsibilities states under Hazard Evaluation, ''The LSO shall be responsible for hazards evaluation of laser work areas''; (2) Section 1.3.2.8, Safety Features Audits, ''The LSO shall ensure that the safety features of the laser installation facilities and laser equipment are audited periodically to assure proper operation''; and (3) Appendix D, under Survey and Inspections, it states, ''the LSO will survey by inspection, as considered necessary, all areas where laser equipment is used''. Therefore, for facilities using Class 3B and or Class 4 lasers, audits for laser safety compliance are expected to be conducted. The composition, frequency and rigueur of that inspection/audit rests in the hands of the LSO. A common practice for institutions is to develop laser audit checklists or survey forms. In many institutions, a sole Laser Safety Officer (LSO) or a number of Deputy LSO's perform these audits. For that matter, there are institutions that request users to perform a self-assessment audit. Many items on the common audit list and the associated findings are subjective because they are based on the experience and interest of the LSO or auditor in particular items on the checklist. Beam block usage is an example; to one set of eyes a particular arrangement might be completely adequate, while to another the installation may be inadequate. In order to provide more consistency, the National Ignition Facility Directorate at Lawrence Livermore National Laboratory (NIF-LLNL) has established criteria for a number of items found on the typical laser safety audit form. These criteria are distributed to laser users, and they serve two broad purposes: first, it gives the user an expectation of what will be reviewed by an auditor, and second, it is an

  2. The British Monarchy. On the Teaching of British Affairs at College and School Level

    Science.gov (United States)

    Campbell-Doherty, Julian

    1974-01-01

    Deals with "area study" aspects of the teaching of English in schools and colleges. Using as an example the British monarchy, it is shown how "area study" elements are handled in schoolbooks in use today. Suggestions relating to the subject are also offered. (IFS/WGA)

  3. Noch Einmal:American English - British English (Once More: American English -- British English).

    Science.gov (United States)

    Botts, M.

    1980-01-01

    Replies critically to the article by D. K. Stevenson and R. J. Brunt, "Living English: Seeing the Forest in Spite of the Trees -- On Differences between American English and British English," in this journal, issue 1979/2. A reply by Stevenson and Brunt continues the controversy. (IFS/WGA)

  4. The Ruins of the British Welfare State

    Directory of Open Access Journals (Sweden)

    Tahl Kaminer

    2014-08-01

    Full Text Available The subjects of Owen Hatherley’s A Guide to the New Ruins of Great Britain are architecture and urban development. The book addresses also some broader cultural, political and economic references, as well as personal anecdotes and memories. It includes many encounters with the remnants of the British welfare state.As an extension to his blog postings and a sequel of sorts to his previous Militant Modernism, Hatherley’s antagonist here is the semi-official architecture of New Labour, which he terms ‘pseudomodernism’: an unimaginative, inferior, and, in its own specific way, also tacky architecture of white stucco, steel and glass. He attacks the Faustian bargain of Richard Rogers and his allies with neoliberalism, a pact that produces a modernism devoid of social content, reflected by the unimaginative, speculation-driven architectural design. While Hatherley produces the promised indictment of recent British architecture, the book is, at the end of the day, primarily a eulogy to the disappearing postwar architecture he so evidently loves.

  5. The British Geological Survey seismic monitoring system

    Science.gov (United States)

    Ottemoller, L.; Baptie, B.; Luckett, R.

    2009-04-01

    The British Geological Survey (BGS) monitors the seismicity in and around the British Isles. The seismic network was started in the seventies and built up over the years to 146 short-period stations. An upgrade of this network started a few years ago and will result in a modern network with broadband seismometers, high dynamic range digitizers and real-time communication (Internet, ADSL, satellite). In total the network will comprise about 50 stations, with only few short-period stations remaining. Equipment is used from both Guralp and Nanometrics, and their respective software for data acquisition is used to bring the data to the centre in near real-time. The automated data processing is done through Earthworm. Event data are analysed using SEISAN. Continuous data are kept for all broadband stations and checked for quality and completeness. Real-time data is also exchanged with neighbouring networks. The data is used for routine monitoring, but also research. The main research objectives are to understand distribution of seismicity and relating earthquakes to tectonics, develop velocity and attenuation models and study the seismic hazard and earthquake effects.

  6. Warren McCulloch and the British cyberneticians

    OpenAIRE

    Husbands, Phil; Holland, Owen

    2012-01-01

    Warren McCulloch was a significant influence on a number of British cyberneticians, as some British pioneers in this area were on him. He interacted regularly with most of the main figures on the British cybernetics scene, forming close friendships and collaborations with several, as well as mentoring others. Many of these interactions stemmed from a 1949 visit to London during which he gave the opening talk at the inaugural meeting of the Ratio Club, a gathering of brilliant, mainly young, B...

  7. The Effects of British Army Footwear on Ground Reaction Force and Temporal Parameters of British Army Foot-Drill.

    Science.gov (United States)

    Rawcliffe, Alex J; Graham, Scott M; Simpson, Richard J; Moir, Gavin L; Martindale, Russell Jj; Psycharakis, Stelios G; Connaboy, Chris

    2017-08-09

    High rates of occupational training-related lower-limb musculoskeletal [MSK] overuse injuries are reported for British Army recruits during basic training. Foot-drill is a repetitive impact loading occupational activity and involves striking the ground violently with an extended-knee [straight-leg] landing. Foot-drill produces vertical ground reaction forces [vGRF] equal to and/or greater than those reported for high-level plyometric exercises/activities. Shock absorbing footwear aid in the attenuation of the magnitude of vGRF, resulting in a reduced risk of lower-limb MSK overuse injury when running. The potential shock absorbing characteristics of standard issue British Army footwear on the magnitude of vGRF and temporal parameters of foot-drill are scant. Therefore, this study sought to determine the magnitude of, and examine changes in vGRF and temporal parameters of foot-drill across three types of British Army footwear. Sampled at 1000hz, the mean of eight-trials from fifteen recreationally active males were collected from four foot-drills; stand-at-ease [SaE], stand-at-attention [SaA], quick-march [QM] and halt. Analysis of a normal walk was included to act as a comparison with quick-march. Significant main effects [P<0.05] were observed between footwear and foot-drill. The training shoe demonstrated significantly greater shock absorbing capabilities when compared with the combat boot and ammunition boot. Foot-drill produced peak vGRF and peak vertical rate of force development in excess of 5bw, and 350bw/sec, respectively. Time to peak vGRF ranged from 0.016- 0.036ms across foot-drills, indicating that passive vGRF may not be under neuromuscular control. The marginal reductions in the magnitude of vGRF and temporal parameters in foot-drill associated with the training shoe may act to reduce the accumulative impact loading forces experienced by recruits, subsequently minimising the severity and rates of lower-limb MSK overuse injuries and recruit medical

  8. Searching corpora of Chinese and British writers for lexicalised language

    OpenAIRE

    Leedham, Maria

    2008-01-01

    In the U.K., Chinese students are now 'the largest single overseas student group' with more than 60,000 students studying there in 2006 (British Council, 2007). British universities are beginning to explore how they can meet the needs of this group (see, for example, Leedham et.al. 2004). The focus of this paper is on differences in assignment-writing and views of writing between Chinese and Brit-ish undergraduate level students within U.K. universities. Using the British Academic Written Eng...

  9. Laser radiation protection

    International Nuclear Information System (INIS)

    Pantelic, D.; Muric, B.; Vasiljevic, D.

    2011-01-01

    We have presented the effects of laser radiation on human organism, with special emphasize on eye as the most sensitive organ. It was pointed-out that there are many parameters that should be taken into account when determining the level of protection from laser light. In that respect it is important to be aware of international standards that regulate this area. In addition, we have described a new material which efficiently protects human eye, by formation of microlens and carbonization. [sr

  10. Optimising laser tattoo removal

    Directory of Open Access Journals (Sweden)

    Kabir Sardana

    2015-01-01

    Full Text Available Lasers are the standard modality for tattoo removal. Though there are various factors that determine the results, we have divided them into three logical headings, laser dependant factors such as type of laser and beam modifications, tattoo dependent factors like size and depth, colour of pigment and lastly host dependent factors, which includes primarily the presence of a robust immune response. Modifications in the existing techniques may help in better clinical outcome with minimal risk of complications. This article provides an insight into some of these techniques along with a detailed account of the factors involved in tattoo removal.

  11. Optimising Laser Tattoo Removal

    Science.gov (United States)

    Sardana, Kabir; Ranjan, Rashmi; Ghunawat, Sneha

    2015-01-01

    Lasers are the standard modality for tattoo removal. Though there are various factors that determine the results, we have divided them into three logical headings, laser dependant factors such as type of laser and beam modifications, tattoo dependent factors like size and depth, colour of pigment and lastly host dependent factors, which includes primarily the presence of a robust immune response. Modifications in the existing techniques may help in better clinical outcome with minimal risk of complications. This article provides an insight into some of these techniques along with a detailed account of the factors involved in tattoo removal. PMID:25949018

  12. Academic Standards and Requirements at Commonwealth African Universities.

    Science.gov (United States)

    MacKenzie, Clayton G.

    1988-01-01

    Academic standards at British Commonwealth African universities are considered and the relevance of Western academic traditions for the universities is discussed. It is concluded that building academic excellence is of greater importance than increasing manpower output. (MSE)

  13. Identification and Quantification of N-Acyl Homoserine Lactones Involved in Bacterial Communication by Small-Scale Synthesis of Internal Standards and Matrix-Assisted Laser Desorption/Ionization Mass Spectrometry

    Science.gov (United States)

    Leipert, Jan; Treitz, Christian; Leippe, Matthias; Tholey, Andreas

    2017-12-01

    N-acyl homoserine lactones (AHL) are small signal molecules involved in the quorum sensing of many gram-negative bacteria, and play an important role in biofilm formation and pathogenesis. Present analytical methods for identification and quantification of AHL require time-consuming sample preparation steps and are hampered by the lack of appropriate standards. By aiming at a fast and straightforward method for AHL analytics, we investigated the applicability of matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS). Suitable MALDI matrices, including crystalline and ionic liquid matrices, were tested and the fragmentation of different AHL in collision-induced dissociation MS/MS was studied, providing information about characteristic marker fragments ions. Employing small-scale synthesis protocols, we established a versatile and cost-efficient procedure for fast generation of isotope-labeled AHL standards, which can be used without extensive purification and yielded accurate standard curves. Quantitative analysis was possible in the low pico-molar range, with lower limits of quantification reaching from 1 to 5 pmol for different AHL. The developed methodology was successfully applied in a quantitative MALDI MS analysis of low-volume culture supernatants of Pseudomonas aeruginosa. [Figure not available: see fulltext.

  14. The Newest Laser Processing

    International Nuclear Information System (INIS)

    Lee, Baek Yeon

    2007-01-01

    This book mentions laser processing with laser principle, laser history, laser beam property, laser kinds, foundation of laser processing such as laser oscillation, characteristic of laser processing, laser for processing and its characteristic, processing of laser hole including conception of processing of laser hole and each material, and hole processing of metal material, cut of laser, reality of cut, laser welding, laser surface hardening, application case of special processing and safety measurement of laser.

  15. Women's and men's careers in British sociology.

    Science.gov (United States)

    Platt, Jennifer

    2004-06-01

    The career experience of men and women in British university sociology since 1950 is compared, using published data for the whole group and fresh data from a sample of departments. It is shown that, when like is compared with like, the outcomes for men and for women have not been as different as is often suggested; family reasons were more salient in women's careers, but in the end have not made much difference to their destinations. But the proportions of women recruited have varied over time, and the experience of both sexes has been strongly influenced by historical factors affecting different periods. Within the constraints which those have imposed, individuals have not all made the same choices, and that too has affected the outcomes.

  16. Population Ecology of Caribou in British Columbia

    Directory of Open Access Journals (Sweden)

    D.R. Seip

    1996-01-01

    Full Text Available The abundance and geographic range of woodland caribou (Rangifer tarandus caribou decreased in many areas of British Columbia during the 1900's. Recent studies have found that predation during the summer is the major cause of mortality and current population declines. Increased moose {Alecs alces populations may be related to past and current caribou declines by sustaining greater numbers of wolves (Canis lupus. Mortality rates were greater in areas where caribou calved in forested habitats, in close proximity to predators and moose. Caribou populations which had calving sites in alpine areas, islands, and rugged mountains experienced lower mortality and were generally stable or increasing. A predator-induced population decline in one area appeared to stabilize at low caribou densities, suggesting that the wolf predation rate may be density dependent.

  17. British American Tobacco's failure in Turkey.

    Science.gov (United States)

    Lawrence, S

    2009-02-01

    Transnational tobacco companies (TTCs) considered Turkey an important, potential investment market because of its high consumption rates and domestic commitment to tobacco. This paper outlines how British American Tobacco (BAT) attempted to establish a joint venture with the government monopoly TEKEL, while waiting for privatisation and a private tender. Analysis of tobacco industry documents from the Guildford Depository and online tobacco document sources. BAT failed to establish a market share in Turkey until 2000 despite repeated attempts to form a joint venture with Turkey's tobacco monopoly, TEKEL, once the market liberalised in the mid 1980s. BAT's failure in the Turkish market was due to a misguided investment strategy focused solely on acquiring TEKEL and is contrasted with Philip Morris success in Turkey despite both TTCs working within Turkey's unstable and corrupt investing climate.

  18. Adenylosuccinate lyase deficiency--first British case.

    Science.gov (United States)

    Marinaki, A M; Champion, M; Kurian, M A; Simmonds, H A; Marie, S; Vincent, M F; van den Berghe, G; Duley, J A; Fairbanks, L D

    2004-10-01

    A deficiency of adenylosuccinate lyase (ASDL) is characterised by the accumulation of SAICAriboside (SAICAr) and succinyladenosine (S-Ado) in body fluids. The severity of the clinical presentation correlates with a low S-Ado/SAICAr ratio in body fluids. We report the first British case of ADSL deficiency. The patient presented at 14 days with a progressive neonatal encephalopathy and seizures. There was marked axial and peripheral hypotonia. Brain MRI showed widespread white matter changes. She died at 4 weeks of age. Concentrations of SAICAr and SAdo were markedly elevated in urine, plasma and CSF and the SAdo/SAICAr ratio was low, consistent with the severe phenotype. The patient was compound heterozygous for 2 novel ADSL mutations; c.9 G>C (A3P) and c.572 C>T (R190X).

  19. Ocean energy sector in British Columbia

    International Nuclear Information System (INIS)

    2010-01-01

    British Columbia's significant wave, tidal, ocean and river current resources will help to provide a clean, renewable energy source to meet the growing demand for electricity in local and North American markets. Various sites in the province are now being investigated for their energy development potential. A demonstration project located in the Race Rocks ecological reserve is producing electricity from tidal currents, while 3 other sites have received provincial funding in order to demonstrate new wave and tidal energy technologies off the coast of Vancouver Island. This guide provided an outline of the province's emerging ocean energy sector, and described the principal companies involved in developing ocean resources in the region. Details of new ocean energy projects were also provided. 1 tab., 7 figs.

  20. A new improved protocol for in vitro intratubular dentinal bacterial contamination for antimicrobial endodontic tests: standardization and validation by confocal laser scanning microscopy

    Directory of Open Access Journals (Sweden)

    Flaviana Bombarda de ANDRADE

    2015-01-01

    Full Text Available Objectives To compare three methods of intratubular contamination that simulate endodontic infections using confocal laser scanning microscopy (CLSM. Material and Methods Two pre-existing models of dentinal contamination were used to induce intratubular infection (groups A and B. These methods were modified in an attempt to improve the model (group C. Among the modifications it may be included: specimen contamination for five days, ultrasonic bath with BHI broth after specimen sterilization, use of E. faecalis during the exponential growth phase, greater concentration of inoculum, and two cycles of centrifugation on alternate days with changes of culture media. All specimens were longitudinally sectioned and stained with of LIVE/DEAD® for 20 min. Specimens were assessed using CLSM, which provided images of the depth of viable bacterial proliferation inside the dentinal tubules. Additionally, three examiners used scores to classify the CLSM images according to the following parameters: homogeneity, density, and depth of the bacterial contamination inside the dentinal tubules. Kruskal-Wallis and Dunn’s tests were used to evaluate the live and dead cells rates, and the scores obtained. Results The contamination scores revealed higher contamination levels in group C when compared with groups A and B (p0.05. The volume of live cells in group C was higher than in groups A and B (p<0.05. Conclusion The new protocol for intratubular infection resulted in high and uniform patterns of bacterial contamination and higher cell viability in all specimens when compared with the current methods.

  1. A new improved protocol for in vitro intratubular dentinal bacterial contamination for antimicrobial endodontic tests: standardization and validation by confocal laser scanning microscopy.

    Science.gov (United States)

    Andrade, Flaviana Bombarda de; Arias, Marcela Paola Castro; Maliza, Amanda Garcia Alves; Duarte, Marco Antonio Hungaro; Graeff, Márcia Sirlene Zardin; Amoroso-Silva, Pablo Andrés; Midena, Raquel Zanin; Moraes, Ivaldo Gomes de

    2015-01-01

    To compare three methods of intratubular contamination that simulate endodontic infections using confocal laser scanning microscopy (CLSM). Two pre-existing models of dentinal contamination were used to induce intratubular infection (groups A and B). These methods were modified in an attempt to improve the model (group C). Among the modifications it may be included: specimen contamination for five days, ultrasonic bath with BHI broth after specimen sterilization, use of E. faecalisduring the exponential growth phase, greater concentration of inoculum, and two cycles of centrifugation on alternate days with changes of culture media. All specimens were longitudinally sectioned and stained with of LIVE/DEAD for 20 min. Specimens were assessed using CLSM, which provided images of the depth of viable bacterial proliferation inside the dentinal tubules. Additionally, three examiners used scores to classify the CLSM images according to the following parameters: homogeneity, density, and depth of the bacterial contamination inside the dentinal tubules. Kruskal-Wallis and Dunn's tests were used to evaluate the live and dead cells rates, and the scores obtained. The contamination scores revealed higher contamination levels in group C when compared with groups A and B (p0.05). The volume of live cells in group C was higher than in groups A and B (p<0.05). The new protocol for intratubular infection resulted in high and uniform patterns of bacterial contamination and higher cell viability in all specimens when compared with the current methods.

  2. A comparison of antenatal classifications of 'overweight' and 'obesity' prevalence between white British, Indian, Pakistani and Bangladeshi pregnant women in England; analysis of retrospective data.

    Science.gov (United States)

    Garcia, Rebecca; Ali, Nasreen; Guppy, Andy; Griffiths, Malcolm; Randhawa, Gurch

    2017-04-11

    Maternal obesity increases women's risk of poor birth outcomes, and statistics show that Pakistani and Bangladeshi women (who are born or settled) in the UK experience higher rates of perinatal mortality and congenital anomalies than white British or white Other women. This study compares the prevalence of maternal obesity in Indian, Pakistani, Bangladeshi and white British women using standard and Asian-specific BMI metrics. Retrospective cross-sectional analysis using routinely recorded secondary data in Ciconia Maternity information System (CMiS), between 2008 and 2013. Mothers (n = 15,205) whose ethnicity was recorded as white British, Bangladeshi, Pakistani or Indian. Adjusted standardised residuals and Pearson Chi-square. Percentage of mothers stratified by ethnicity (Indian, Pakistani, Bangladeshi and white British) who are classified as overweight or obese using standard and revised World Health Organisation BMI thresholds. Compared to standard BMI thresholds, using the revised BMI threshold resulted in a higher prevalence of obesity: 22.8% of Indian and 24.3% of Bangladeshi and 32.3% of Pakistani women. Pearson Chi-square confirmed that significantly more Pakistani women were classified as 'obese' compared with white British, Indian or Bangladeshi women (χ 2  = 499,88 df = 9, p obese and overweight women stratified by maternal ethnicity of white British, Indian, Pakistani and Bangladeshi. Using revised anthropometric measures in Indian, Pakistani and Bangladeshi women has clinical implications for identifying risks associated with obesity and increased complications in pregnancy.

  3. Shakespearean Intertexts and European Identities in Contemporary Black British Fiction

    Science.gov (United States)

    Muñoz-Valdivieso, Sofía

    2012-01-01

    The article analyses the presence of William Shakespeare as intertext in three recent novels by black British writers which deploy the work of the Bard as they explore British and European identities. Caryl Phillips's "The Nature of Blood" recreates an Othello-like figure who in early Modern Venice struggles to come to terms with his…

  4. Book Review: "Indigenous Peoples of the British Dominions and the ...

    African Journals Online (AJOL)

    Book Review: "Indigenous Peoples of the British Dominions and the First World War"by Timothy C. Winegard. ... Timothy Winegard saw active duty in the Canadian Reserve Force from 2001 to 2010 and served on detachment duty to the British Army for a two-year period. He obtained various academic degrees from 1999 ...

  5. British and American Journal Evaluation: Divergence or Convergence?

    Science.gov (United States)

    Crewe, Ivor; Norris, Pippa

    1991-01-01

    Presents results of a survey comparing British and U.S. political scientists' familiarity with different journals, evaluations of journal quality, and measures of journal impact. Concludes that British and U.S. subjects agree about quality but read different sets of journals. Reports the two groups' familiarity with different literature,…

  6. Editorial. Themed issue of the British Journal of Pharmacology.

    Science.gov (United States)

    Summers, R J

    2014-03-01

    This themed issue of the British Journal of Pharmacology stems from the 7th in the series of meetings on the Molecular Pharmacology of G Protein-Coupled Receptors (MPGPCR) held at the Monash Institute of Pharmaceutical Sciences in Melbourne Australia from the 6th-8th December 2012. © 2014 The British Pharmacological Society.

  7. integration and disintegration in british colonial west africa

    African Journals Online (AJOL)

    The constitutional evolution or the British West ,\\f"rican colonies \\\\·as usually attributed largely to the mood or the British public and parliament rather than to the pressure or local merchants. gon:rnors and /\\ f'ricans. Thus accounts of the territorial and governmental changes tended to.. ernplwsize the necessity for economical ...

  8. Southern Cameroons' financial contributions to British Second World ...

    African Journals Online (AJOL)

    The serious damage done to the British economy during World War II compelled the leaders of the British Government to look for ways of repairing the damage. Hence, they turned to the colonies for help. Inter alia, they needed financial assistance because of their inability to pay for imports from the United States. Imports of ...

  9. The Genesis of Public Relations in British Colonial Practice.

    Science.gov (United States)

    Smyth, Rosaleen

    2001-01-01

    Demonstrates how the British Colonial Office employed public relations strategies as they administered the British colony of Northern Rhodesia before, during, and after World War II. Demonstrates how civil servants in London and colonial officials implemented public relations policies, strategies, and tactics on an ad hoc basis, covering political…

  10. BCASP and the Evolution of School Psychology in British Columbia

    Science.gov (United States)

    Agar, Douglas J.

    2016-01-01

    Since 1992, the British Columbia Association of School Psychologists (BCASP) has been the professional body for school psychologists in British Columbia. In the intervening 24 years, BCASP has been very successful in performing the dual roles of a certifying body and a professional development organization for school psychologists in British…

  11. the relationship between british war correspondents in the field

    African Journals Online (AJOL)

    Lenovo

    This article chronicles the developing relationship between the press corps on the British side and British Military Intelligence during the Anglo-Boer War, particularly during the formal and non-guerrilla phase of the conflict. The article comments on the nature and composition of both the press corps and of the military.

  12. Problem Gambling Treatment within the British National Health Service

    Science.gov (United States)

    Rigbye, Jane; Griffiths, Mark D.

    2011-01-01

    According to the latest British Gambling Prevalence Survey, there are approximately 300,000 adult problem gamblers in Great Britain. In January 2007, the "British Medical Association" published a report recommending that those experiencing gambling problems should receive treatment via the National Health Service (NHS). This study…

  13. Repeated regulatory failures: British electric utilities, 1919--1937

    Science.gov (United States)

    van der Werf, Ysbrand John

    This dissertation uses previously unexamined firm-level data to look at British electric utilities during the 1919--1937 period. The persistent influence of the 1882 and 1888 Electric Lighting Acts had a significant role in perpetuating the inefficient market structure and high costs of the industry. First, I examine factors that influence costs in 1919 and compare the relative cost efficiency of municipally-owned and investor-owned utilities (munis and IOUs). Scale and load factor are found to be more important than ownership in influencing costs, although IOUs enjoy a scale advantage. Given costs, there is no difference in prices between IOUs and munis, and on average prices were 20 percent below monopoly prices. Looking at the 1919--1928 period and examining changes in the industry as measured by the firms' choices in frequency, current, and interconnections with other utilities shows evidence for a great deal of change, which occurred in statistically predictable ways. Utilities are standardizing the type of current produced, and the eventual localized standard frequencies were selected by 1907. There is little in the way of market rivalry between mum's and IOUs but large munis are less likely to build networks and sell in the wholesale market. Finally, I compare the changes that occurred during the 1919--1928 period, under the weak intervention of the Electricity Commissioners, with those of the 1928--1937 period, under the strong intervention of the Central Electricity Board. Without the CEB localized frequency standards would likely have remained in place. The CEB intervened directly in the wholesale market, but contrary to common perceptions, this strong intervention had relatively little impact on trends observed in the industry under the weak intervention of the 1919--1928 period: the CEB reduced prices and costs by no more than about 15 percent and was responsible for at most a quarter of their decline during the 1928--37 period.

  14. Antioxidant and antimicrobial activities of native Rosa sp. from British Columbia, Canada.

    Science.gov (United States)

    Yi, Ocksook; Jovel, Eduardo M; Towers, G H Neil; Wahbe, Tanya R; Cho, Dongwuk

    2007-05-01

    Indigenous traditional knowledge and western science have revealed the potential for significant nutritional and therapeutic benefits among natural antioxidants. We investigated antioxidant and antimicrobial activity of rose hip extracts (Rosa nutkana, Rosa pisocarpa and Rosa woodsii) from wild British Columbia populations using liposome oxidation and disc diffusion assays. All extracts exhibited strong antioxidant activity. R. nutkana pericarp extracts contained high phenolic concentrations and showed greater antioxidant and antimicrobial activity than seed extracts. R. woodsii seed extracts had a higher phenolic concentration and greater antioxidant activity than pericarp extracts. Antioxidant activity was correlated with antimicrobial activity, and both extracts showed antimicrobial activity against yeast and Gram-positive bacteria. Our study is the first to demonstrate the antioxidant and antimicrobial properties of wild British Columbia roses. The effectiveness of selected species compared with standards demonstrates the significance of this natural resource to the continued health of human populations, and the need for conservation practices.

  15. Strategies adopted by British universities in the field of higher education. Lessons for Romanian universities

    Directory of Open Access Journals (Sweden)

    Dana BOŞCOR

    2016-07-01

    Full Text Available The number of Romanian students who apply to study in foreign universities is increasing each year. The most important advantages of studying abroad are: high standards of teaching, close relationship between university and companies, opportunities for students to work during studies and after graduation, a strong intercultural experience and improved communication skills. The present article presents the results of a research based on a focus group consisting of 8 Romanian students enrolled in 2 famous British universities, who were asked to describe the teaching methods, assessments of students’ work, opportunities to find jobs and internships, quality of facilities, use of information technology in teaching and financial support offered by the government. The results of the study highlight that some strategies adopted by British universities might be successfully used by Romanian universities for attracting international students and for retaining the existing ones.

  16. Laser Safety Inspection Criteria

    International Nuclear Information System (INIS)

    Barat, K.

    2005-01-01

    A responsibility of the Laser Safety Officer (LSO) is to perform laser audits. The American National Standard Z136.1 Safe Use of Lasers references this requirement through several sections. One such reference is Section 1.3.2.8, Safety Features Audits, ''The LSO shall ensure that the safety features of the laser installation facilities and laser equipment are audited periodically to assure proper operation''. The composition, frequency and rigor of that inspection/audit rests in the hands of the LSO. A common practice for institutions is to develop laser audit checklists or survey forms It is common for audit findings from one inspector or inspection to the next to vary even when reviewing the same material. How often has one heard a comment, ''well this area has been inspected several times over the years and no one ever said this or that was a problem before''. A great number of audit items, and therefore findings, are subjective because they are based on the experience and interest of the auditor to particular items on the checklist. Beam block usage, to one set of eyes might be completely adequate, while to another, inadequate. In order to provide consistency, the Laser Safety Office of the National Ignition Facility Directorate has established criteria for a number of items found on the typical laser safety audit form. The criteria are distributed to laser users. It serves two broad purposes; first, it gives the user an expectation of what will be reviewed by an auditor. Second, it is an opportunity to explain audit items to the laser user and thus the reasons for some of these items, such as labelling of beam blocks

  17. Electrophoretically mediated microanalysis for simultaneous on-capillary derivatization of standard amino acids followed by micellar electrokinetic capillary chromatography with laser-induced fluorescence detection.

    Science.gov (United States)

    Celá, Andrea; Mádr, Aleš; Glatz, Zdeněk

    2017-05-26

    Amino acids are crucial compounds involved in most biochemical processes essential for life. Since their dynamic turnover reflects the actual physiology of the cell/organism, a turnover assessment may provide valuable information related to multiple physiological and pathophysiological conditions. The sensitive determination of amino acids is predominantly associated with their derivatization which might be laborious, time-consuming and difficult to standardize. However, capillary electrophoresis offers the automatic injection and mixing of reactants, incubation of the reaction mixture, separation and detection of the reaction products in one on-capillary procedure. Among the on-capillary mixing strategies, electrophoretically mediated microanalysis (EMMA) is superior in terms of mixing efficiency. In this paper, we present an optimization of EMMA for the simultaneous derivatization of standard amino acids by naphthalene-2,3-dicarboxaldehyde/NaCN and its application to targeted human embryo metabolomics. For such a purpose, novel separation conditions were developed involving the background electrolyte, comprised of 73mM sodium dodecyl sulfate, 6.7 % (v/v) 1-propanol, 0.5mM (2-hydroxypropyl)-β-cyclodextrin and 135mM boric acid/sodium hydroxide buffer (pH 9.00). Finally, the optimized EMMA was compared to a fundamentally different mixing strategy, namely the transverse diffusion of laminar flow profiles, and proved to be also suitable for human plasma analysis. Copyright © 2017 Elsevier B.V. All rights reserved.

  18. Improving operation notes to meet British Orthopaedic Association guidelines.

    Science.gov (United States)

    Morgan, David; Fisher, Noel; Ahmad, Aman; Alam, Fazle

    2009-04-01

    Operation notes are an important part of medical records for clinical, academic and medicolegal reasons. This study audited the quality of operative note keeping for total knee replacements against the standards set by the British Orthopaedic Association (BOA). A prospective review of all patients undergoing total knee replacement at a district general hospital over 8 months. Data recorded were compared with those required by the BOA good-practice guidelines. Change in practice was implemented and the audit cycle completed. Data were statistically analysed. A total of 129 operation notes were reviewed. There was a significant improvement in the mean number of data points recorded from 9.6 to 13.1. The least well recorded data were diagnosis, description of findings, alignment and postoperative flexion range. All had a significant improvement except description of findings. The operating surgeon writing the note improved from 56% to 67%. Detailed postoperative instructions also improved in quality. Surgeon education and the use of a checklist produce better quality total knee replacement operation notes in line with BOA guidelines. Further improvements may be made by making the data points part of the operation note itself.

  19. Comparison of four different lasers for acne scars: Resurfacing and fractional lasers.

    Science.gov (United States)

    You, Hi-Jin; Kim, Deok-Woo; Yoon, Eul-Sik; Park, Seung-Ha

    2016-04-01

    Acne scars are common and cause cosmetic problems. There is a multitude of treatment options for acne scars, including dermabrasion, chemical peeling, and fillers, but the advent of laser technology has greatly improved the treatment of acne scars. Although several laser systems are available, studies comparing their efficacy are limited. This study compares the results of treatments using resurfacing (carbon dioxide, CO2; erbium-doped yttrium aluminum garnet, Er:YAG) versus fractional (nonablative fractional laser, NAFL; ablative fractional laser, AFL) lasers. A retrospective photographic analysis of 58 patients who underwent laser treatment for facial atrophic acne scars was performed. Clinical improvement was assessed by six blinded investigators with a scale graded from 0 to 10. Adverse events were also noted. Mean improvement scores of the CO2, Er:YAG, NAFL, and AFL groups were 6.0, 5.8, 2.2, and 5.2, respectively. The NAFL group showed a significantly lower score than the other groups. The mean number of treatments was significantly greater in the fractional laser groups than in the resurfacing laser groups. The resurfacing laser groups had a prolonged recovery period and high risk of complications. The Er:YAG laser caused less erythema or pigmentation compared to the CO2 laser. Although the CO2 laser, Er:YAG laser, and AFL improved the acne scars, the CO2 laser had a greater downtime. Three consecutive AFL treatments are as effective as a single treatment with resurfacing lasers, with shorter social downtime periods and less adverse effects. Copyright © 2016 British Association of Plastic, Reconstructive and Aesthetic Surgeons. Published by Elsevier Ltd. All rights reserved.

  20. British Gas plans global gas unit expansion

    International Nuclear Information System (INIS)

    Vielvoye, R.

    1991-01-01

    This paper reports on developing a global gas business, a British Gas plc's strategy for evolving a state owned U.K. gas company to a privatized worldwide oil and gas giant. By 2000, BG's global gas business is expected to provide 20% of its revenues, compared with 40% each from its exploration and production operations and its U.K. gas business. The global gas unit (GGU) plans to meet its targets mainly through acquiring holdings in gas transmission and distribution companies around the world. In the 12 months since GGU was established, it has made two such major acquisitions in this area. BG acquired Consumers Gas Co., Ltd., Ontario, Canada's biggest natural gas distribution company, for $943.5 million. It also took a 10% stake in Catalana de Gas SA, Barcelona, the largest privately owned gas utility in Spain and in terms of number of customers, the fourth largest in western Europe. BG also is targeting additional revenues from developing gas fired cogeneration systems in developing countries with gas reserves but no established transmission and distribution systems

  1. The Planetary Consciousness of British Travel Writers

    Science.gov (United States)

    Henry, H.

    2013-04-01

    Global travel, advanced in the early 20th century by trains, automobiles, and airplanes, transformed modernist thought and experience. Stephen Kern has commented that in the modern period “a series of sweeping changes in technology and culture created distinctive new modes of thinking about and experiencing of time and space. Technological innovations including the telephone, wireless telegraph, x-ray, cinema, bicycle, automobile, and airplane established the material foundation for this reorientation.” (1983, pp. 1-2). Emerging travel technologies not only hurled passengers through multiple time zones in a day but also brought to the fore a global awareness regarding Earth as a globe in space and one's position on it. As early as 1909, while traveling in Florence, Virginia Woolf had noted in her diary, “It is strange how one begins to hold a globe in one's head: I can travel from Florence to Fitzroy Square on solid land all the time” (1984, p. 399). This paper traces the ways modernist British travel writers challenged England's geographical and geopolitical imagination at the turn of the 20th century through their travel narratives.

  2. GM2 gangliosidosis in British Jacob sheep.

    Science.gov (United States)

    Wessels, M E; Holmes, J P; Jeffrey, M; Jackson, M; Mackintosh, A; Kolodny, E H; Zeng, B J; Wang, C B; Scholes, S F E

    2014-01-01

    GM2 gangliosidosis (Tay-Sachs disease) was diagnosed in 6- to 8-month-old pedigree Jacob lambs from two unrelated flocks presenting clinically with progressive neurological dysfunction of 10 day's to 8 week's duration. Clinical signs included hindlimb ataxia and weakness, recumbency and proprioceptive defects. Histopathological examination of the nervous system identified extensive neuronal cytoplasmic accumulation of material that stained with periodic acid--Schiff and Luxol fast blue. Electron microscopy identified membranous cytoplasmic bodies within the nervous system. Serum biochemistry detected a marked decrease in hexosaminidase A activity in the one lamb tested, when compared with the concentration in age matched controls and genetic analysis identified a mutation in the sheep hexa allele G444R consistent with Tay-Sachs disease in Jacob sheep in North America. The identification of Tay-Sachs disease in British Jacob sheep supports previous evidence that the mutation in North American Jacob sheep originated from imported UK stock. Crown Copyright © 2013. Published by Elsevier Ltd. All rights reserved.

  3. State of the air in British Columbia

    International Nuclear Information System (INIS)

    McDonald, S.; Furberg, M.; Rother, P.

    2005-08-01

    Scientific evidence is rising regarding the danger of air pollution. Poor air quality can pose a problem in British Columbia, particularly in interior communities when temperature inversions, during certain times of the year, trap pollutants in mountain valleys. This document described where pollutants come from, ambient levels in the atmosphere and how they affect human health. Particular focus was on fine particulate matter, ozone and oxides of nitrogen, as these 3 pollutants have been linked to health impacts. The cost of air pollution through increased health care costs and the economic impact of lost productivity from missed work days was also discussed along with the influence of poor air quality on crop damage and forestry production losses. The document also outlined government and community initiatives to protect public health and listed some measures that individuals can do to keep air clean. Air pollution stems from activities such as land development, burning fossil fuels for energy and transportation, industrial operations, residential wood burning and backyard burning of debris and burning from forestry and agricultural operations. The health impacts range from irritation, to coughing and worsening of existing heart and lung conditions. The document states that despite all measures being taken to reduce emissions and to maintain levels of air pollutants at current low levels, health effects are still observed and still pose a burden to health care cost. Scientific evidence indicates that a further reduction in air pollution will result in health benefits. refs., figs

  4. Laser Therapy

    Science.gov (United States)

    ... for Every Season How to Choose the Best Skin Care Products In This Section Dermatologic Surgery What is dermatologic ... for Every Season How to Choose the Best Skin Care Products Laser Resurfacing Uses for Laser Resurfacing Learn more ...

  5. British Gas marks progress in drive for global operations

    International Nuclear Information System (INIS)

    Kennedy, J.L.

    1992-01-01

    This paper reports that British Gas plc, London, is driving to boost the share of its business that comes form outside the U.K. Non-U.K. activities accounted for about 10% of the company's business last year. By the turn of the century earnings form British Gas's non-U.K. exploration and production activities are expected to be about in line with those form the U.K. core business. In addition, the company's global gas business unit-acquisitions, sales, of British Gas technology worldwide, and power generation form gas-will contribute significantly to overseas earnings

  6. The Civilisers, British Engineers, Imperialism and Africa 1880-1914

    DEFF Research Database (Denmark)

    Andersen, Casper

    2009-01-01

    The thesis analyses the connections between British civil engineers and British imperialism in the period 1880-1914. The thesis works at the intersection of intellectual history, history of technology, and imperial history. The thesis argues that Britain and the Empire should be studied...... as an interconnected dynamic unity in which engineers were situated; the geographical and ideological context in which their activities took place. The thesis can be read as a contribution to recent re-conceptualisations of the British Empire as a zone bind together by ‘colonial connections' and ‘imperial networks...

  7. Unity is strength: staff college and the British officer corps.

    Science.gov (United States)

    King, Anthony

    2009-03-01

    Utilizing Bourdieu's concept of the habitus, Keith Macdonald has recently examined the elite social origins of the British officer corps. His analysis is valid as far at it goes but it ignores the professional practices of British officers. This article examines Britain's Joint Services Command and Staff College to assess the unification of the three services around common forms of military practice. It argues that while the new staff college has been effective in disseminating new forms of professional expertise among British officers, various practices have been institutionalized which actively undermine the unity of the officer corps.

  8. Lasers technology

    International Nuclear Information System (INIS)

    2014-01-01

    The Laser Technology Program of IPEN is developed by the Center for Lasers and Applications (CLA) and is committed to the development of new lasers based on the research of new optical materials and new resonator technologies. Laser applications and research occur within several areas such as Nuclear, Medicine, Dentistry, Industry, Environment and Advanced Research. Additional goals of the Program are human resource development and innovation, in association with Brazilian Universities and commercial partners

  9. Laser safety considerations for a mobile laser program

    Science.gov (United States)

    Flor, Mary

    1997-05-01

    An increased demand for advanced laser technology, especially in the area of cutaneous and cosmetic procedures has prompted physicians to use mobile laser services. Utilization of a mobile laser service allows physicians to provide the latest treatments for their patients while minimizing overhead costs. The high capital expense of laser systems is often beyond the financial means of individual clinicians, group practices, free-standing clinics and smaller community hospitals. Historically rapid technology turnover with laser technology places additional risk which is unacceptable to many institutions. In addition, health care reform is mandating consolidation of equipment within health care groups to keep costs at a minimum. In 1994, Abbott Northwestern Hospital organized an in-house mobile laser technology service which employs a group of experienced laser specialists to deliver and support laser treatments for hospital outreach and other regional physicians and health care facilities. Many of the hospital's internal safety standards and policies are applicable to the mobile environment. A significant challenge is client compliance because of the delicate balance of managing risk while avoiding being viewed as a regulator. The clinics and hospitals are assessed prior to service to assure minimum laser safety standards for both the patient and the staff. A major component in assessing new sites is to inform them of applicable regulatory standards and their obligations to assure optimum laser safety. In service training is provided and hospital and procedures are freely shared to assist the client in establishing a safe laser environment. Physician and nursing preceptor programs are also made available.

  10. Laser Dyes

    Indian Academy of Sciences (India)

    treatments, including port-wine stain and tattoo removal, diag- nostic measurements, lithotripsy, activation of photosensitive drugs for photodynamic therapy, etc. In the field of medical applications, dye lasers have potential advantages over other lasers. Dye lasers are unique sources of tunable coherent radiation, from the ...

  11. HF laser

    International Nuclear Information System (INIS)

    Suzuki, Kazuya; Iwasaki, Matae

    1977-01-01

    A review is made of the research and development of HF chemical laser and its related work. Many gaseous compounds are used as laser media successfully; reaction kinetics and technological problems are described. The hybrid chemical laser of HF-CO 2 system and the topics related to the isotope separation are also included. (auth.)

  12. Mirrorless lasers

    Indian Academy of Sciences (India)

    wavelength of operation thereby tuning the laser. Another way of ... of operation. Considering the crucial role of mirrors in a laser, the phrase 'mirrorless lasers' seems to be a paradoxical one. However, in what follows, we will see how one can indeed ..... A possible military application is to have a small area in a person's.

  13. Lasers (Rev.)

    Energy Technology Data Exchange (ETDEWEB)

    Hellman, Hal

    1969-01-01

    A laser is an instrument that produces an enormously intense pencil-thin beam of light. In this booklet we shall learn what there is about the laser that gives it so much promise. We shall investigate what it is, how it works, and the different kinds of lasers there are.

  14. Microchip Lasers

    Science.gov (United States)

    2016-10-31

    USA E-mail: zayhowski@ll.mit.edu Abstract Microchip lasers are a rich family of solid-state lasers defined by their small size, robust integration...reliability, and potential for low-cost mass production. Continuous-wave microchip lasers cover a wide range of wavelengths, often operate single

  15. Laser tattoo removal: A clinical update

    Directory of Open Access Journals (Sweden)

    Stephanie GY Ho

    2015-01-01

    Full Text Available Techniques for tattoo removal have evolved significantly over the years. The commonly used Quality-switched (QS ruby, alexandrite, and Nd:YAG lasers are the traditional workhorses for tattoo removal. Newer strategies using combination laser treatments, multi-pass treatments, and picosecond lasers offer promising results. The tattoo color and skin type of the patient are important considerations when choosing the appropriate laser. Standard protocols can be developed for the effective and safe treatment of tattoos.

  16. Laser Tattoo Removal: A Clinical Update

    Science.gov (United States)

    Ho, Stephanie GY; Goh, Chee Leok

    2015-01-01

    Techniques for tattoo removal have evolved significantly over the years. The commonly used Quality-switched (QS) ruby, alexandrite, and Nd:YAG lasers are the traditional workhorses for tattoo removal. Newer strategies using combination laser treatments, multi-pass treatments, and picosecond lasers offer promising results. The tattoo color and skin type of the patient are important considerations when choosing the appropriate laser. Standard protocols can be developed for the effective and safe treatment of tattoos. PMID:25949017

  17. Characterization of the stem anatomy of the Eocene fern Dennstaedtiopsis aerenchymata (Dennstaedtiaceae) by use of confocal laser scanning microscopy.

    Science.gov (United States)

    Shi, Chris S; Schopf, J William; Kudryavtsev, Anatoliy B

    2013-08-01

    Permineralization provides the most faithful known mode of three-dimensional preservation of the morphology and cellular anatomy of fossil plants. Standard optical microscopic documentation of such structures can provide only an approximation of their true three-dimensional form and is incapable of revealing fine-structural (<300 nm) details, deficiencies that can be addressed by the use of confocal laser scanning microscopy (CLSM). To demonstrate the usefulness of CLSM in such studies, we compare confocal laser scanning micrographs and optical photomicrographs of the permineralized tissues of rhizomes and petioles of the Eocene fern Dennstaedtiopsis aerenchymata preserved in cherts of the Clarno Formation of Oregon, USA, and the Allenby Formation (Princeton chert) of British Columbia, Canada. The laser-induced fluorescence detected by CLSM produces crisp high-resolution images of the three-dimensionally permineralized tissues of Dennstaedtiopsis aerenchymata. Tissues analyzed include the epidermis and epidermal hairs, cortex, aerenchyma, endodermis, vascular tissue, and pith-for each of which, CLSM yields results superior to those of standard optical microscopy. CLSM and previous Raman spectroscopic analyses of the same specimens provide evidence consistent with original biochemistry. Use of CLSM to characterize the morphology and cellular anatomy of permineralized fossil plants can provide accurate data in two and three dimensions at high spatial resolution, information that can be critically important to taxonomic, taphonomic, and developmental interpretations. Results presented here from this first detailed CLSM-based study of permineralized plant axes indicate that this nonintrusive, nondestructive technique should be widely applicable in paleobotany.

  18. Primary length standard adjustment

    Science.gov (United States)

    Ševčík, Robert; Guttenová, Jana

    2007-04-01

    This paper deals with problems and techniques connected with primary length standard adjusting, which includes disassembling of the device and by use of the secondary laser with collimated beam and diffraction laws successively reassembling of the laser. In the reassembling process the device was enhanced with substituting the thermal grease cooling of cold finger by copper socket cooler. This improved external cooling system enables more effective cooling of molecular iodine in the cell, which allows better pressure stability of iodine vapor and easier readjustment of the system.

  19. Is the hijab protective? An investigation of body image and related constructs among British Muslim women.

    Science.gov (United States)

    Swami, Viren; Miah, Jusnara; Noorani, Nazerine; Taylor, Donna

    2014-08-01

    Previous studies have reported equivocal findings concerning the impact of wearing a hijab, or Islamic head- and body-cover, on Muslim women's body image. Here, we sought to examine that impact using a larger sample of Muslim women than has been relied upon and a wider range of body image measures. A total of 587 British Muslim women completed a battery of scales assessing their frequency and conservativeness of hijab use, body image variables, attitudes towards the media and beauty ideals, importance of appearance, and religiosity. Preliminary results indicated that 218 women never used the hijab and 369 women used some form of the hijab at least rarely. Controlling for religiosity, women who wore the hijab had more positive body image, lower internalization of media messages about beauty standards, and placed less importance on appearance than women who did not wear the hijab. Among women who wore the hijab, hijab use significantly predicted weight discrepancy and body appreciation over and above religiosity. These results are discussed in terms of the possible protective impact among British Muslim women of wearing the hijab. © 2013 The British Psychological Society.

  20. Complacent and conflicting scientific expertise in British and American drug regulation: clinical risk assessment of triazolam.

    Science.gov (United States)

    Abraham, J; Sheppard, J

    1999-12-01

    This paper presents a case study in the production and interpretation of regulatory science, focusing on the conflicting British and American clinical risk assessments of triazolam (Halcion) - the most controversial sleeping pill in the world. The regulation of triazolam is shown to be more permissive in the USA than in the UK. Six principal socio-political factors are put forward to explain this; differential regulatory trust; regulators' socio-technical data selections; medico-scientific disciplinary influences; organizational and professional interests; conflicts of interest of expert advisers; and the growth of the neo-liberal regulatory state. The risk assessments of both the British and American regulatory agencies are shown to be complacent relative to technical standards which the agencies themselves later accepted. It is suggested that, when the interests of pharmaceutical manufacturers and patients diverge, regulatory assessments are crucially affected by whether regulators are predisposed to award the benefit of the scientific doubts to the manufacturers or patients, and by the balance of such predispositions both within and between regulatory institutions of scientific expertise. The triazolam case indicates that the amount of trust placed in the pharmaceutical industry by the British American regulatory systems may hamper detection of flaws in manufacturers' medical data in a timely manner and, as a consequence, compromise patients' interests. Some policy implications for drug regulation are sketched.

  1. The British Columbia natural gas market overview and assessment : an energy market assessment

    International Nuclear Information System (INIS)

    2004-04-01

    The National Energy Board monitors the supply of all energy commodities in Canada along with the demand for Canadian energy commodities in domestic and export markets. This report provides an assessment of the natural gas market in British Columbia (BC) and discusses several issues facing the market. The main challenges facing the market in recent years have been rising prices, price spikes and increased price volatility. New exploration and development projects have been announced along with new gas pipeline projects that move gas to eastern markets. Industrial consumers are exploring fuel alternatives to reduce natural gas consumption. Despite these challenges, the Board believes the natural gas market in British Columbia is working well. Natural gas prices are integrated with the North American market, consumers have responded to higher prices by reducing demand, and producers have increased exploration and production. Price discovery has improved due to better pricing reporting standards and access to electronic gas trading at pricing points for BC gas. The small market size in British Columbia and the lack of storage in the Lower Mainland limit market liquidity in comparison with other major market centres. 20 figs

  2. Solid-State Laser Engineering

    CERN Document Server

    Koechner, Walter

    2006-01-01

    Written from an industrial perspective, Solid-State Laser Engineering discusses in detail the characteristics, design, construction, and performance of solid-state lasers. Emphasis is placed on engineering and practical considerations; phenomenological aspects using models are preferred to abstract mathematical derivations. Since its first edition almost 30 years ago this book has become the standard in the field of solid-state lasers for scientists,engineers and graduate students. This new edition has been extensively revised and updated to account for recent developments in the areas of diode-laser pumping, laser materials and nonlinear crystals. Completely new sections have been added dealing with frequency control, the theory of mode-locking, femto second lasers, high efficiency harmonic generation, passive and acousto-optic Q-switching, semiconductor saturable absorber mirrors (SESAM) and peridically poled nonlinear crystals.

  3. British Columbia Utilities Commission 2001 annual report

    International Nuclear Information System (INIS)

    2002-06-01

    The main responsibility of the British Columbia Utilities Commission is to regulate energy utilities under its jurisdiction to ensure that energy rates are fair and that utility operators in the province provide safe, adequate and secure service to their customers. The Commission also approves the construction of new facilities planned by utilities. It also participates in the review of utility and energy projects under the Environmental Assessment Act. Several successes were achieved in 2001 as the utility implemented its first performance plan. Oral public hearings were held for applications by Pacific Northern Gas and by Pembina Pipelines, owners of the common carrier oil pipeline from Taylor to Kamloops. A review of BC Gas' rate design to apportion utility revenue requirements fairly to different classes of customers was successfully achieved by a negotiated settlement process. In 2001, there was also a high level of proposed mergers, acquisitions and divestitures. Duke Energy Corporation's share acquisition of Westcoast Energy's two affiliated gas utilities was approved. BC Gas' application to divest its customer care activities to a joint venture company with Enbridge was also reviewed, and an oral hearing was held to review a West Kootenay Power application to sell its Kootenay River hydroelectric generation assets to Columbia Basin Trust and the Columbia Power Corp. In this case, the decision rendered was that the sale terms had to be changed so that customers could share the proceeds. The utility therefore, decided not to proceed with the sale under these conditions. The BC Hydro legislated rate freeze, which was due to expire on September 30, 2001, was extended for an additional 18 months to allow the new provincial government time to implement a new energy policy. The new energy policy is expected to give the province an energy advantage by facilitating growth and diversification in energy production while providing competition and more choice for

  4. Heavy water at Trail, British Columbia

    International Nuclear Information System (INIS)

    Arsenault, J.E.

    2006-01-01

    Today Canada stands on the threshold of a nuclear renaissance, based on the CANDU reactor family, which depends on heavy water as a moderator and for cooling. Canada has a long history with heavy water, with commercial interests beginning in 1934, a mere two years after its discovery. At one time Canada was the world's largest producer of heavy water. The Second World War stimulated interest in this rather rare substance, such that the worlds largest supply (185 kg) ended up in Canada in 1942 to support nuclear research work at the Montreal Laboratories of the National Research Council. A year later commercial production began at Trail, British Columbia, to support work that later became known as the P-9 project, associated with the Manhattan Project. The Trail plant produced heavy water from 1943 until 1956, when it was shut down. During the war years the project was so secret that Lesslie Thomson, Special Liaison Officer reporting on nuclear matters to C.D. Howe, Minister of Munitions and Supply, was discouraged from visiting Trail operations. Thomson never did visit the Trail facility during the war. In 2005 the remaining large, tall concrete exchange tower was demolished at a cost of about $2.4 million, about the same as it cost to construct the facility about 60 years ago. Thus no physical evidence remains of this historic facility and another important artifact from Canada's nuclear history has disappeared forever. It is planned to place a plaque at the site at some point in the future. (author)

  5. Clothing Benefits Sought: The Case of British Muslims

    Directory of Open Access Journals (Sweden)

    Syadiyah Abdul Shukor

    2013-07-01

    Full Text Available The purpose of this study is to explore British Muslims’ clothing benefits sought. Qualitative research was conducted through interviews to explore British Muslims’ clothing consumption. Following this, quantitative research was undertaken by means of a web based survey questionnaire with 30 items referring to clothing benefits sought. The usable questionnaire consisted of 222 respondents. Data analysis includes descriptive analysis, reliability and exploratory factor analysis. Six factors derived underpinned the clothing benefits sought among British Muslim consumers: “self congruity”, “social status”, “modesty”, “conformity”, “uniqueness” and “personal identity”. This study is the first one to explore clothing benefits sought among Muslim consumers in particular in the UK. This research was exploratory in nature and employed a non probability sampling method. The study provides a useful source of information, which can be used by UK high street fashion retailer regarding clothing benefits sought among British Muslim consumers in the UK.

  6. Geothermal prospects in British Columbia: Resource, market and regulatory aspects

    International Nuclear Information System (INIS)

    Ghomshei, M.M.; Brown, T.L.S.; MacRae, J.M.

    1992-01-01

    British Columbia is host to about 15 young volcanic centres and 60 hot springs, all evidence of presence of geothermal resources. Most high-grade geothermal prospects in British Columbia are located along 3 volcanic belts in the south-western region of the province. It is estimated that a minimum of 800 MWe can be generated from the known prospects in this region. Significant low-grade geothermal resources exist in several provincial regions. Market applications consistent with the geothermal resources known and expected to occur in British Columbia include electrical generation, process and other direct heat uses and recreation. Leasing, exploration and development operations for high-grade geothermal resources are addressed by the British Columbia open-quotes Geothermal Resources Actclose quotes which defines geothermal resources and reserves all rights to the Crown in the right of the Province

  7. British scientists and the Manhattan Project: the Los Alamos years

    International Nuclear Information System (INIS)

    Szasz, F.M.

    1992-01-01

    This is a study of the British scientific mission to Los Alamos, New Mexico, from 1943 to 1947, and the impact it had on the early history of the atomic age. In the years following the Manhattan Project and the production of the world's first atomic explosion in 1945, the British contribution to the Project was played down or completely ignored leaving the impression that all the atomic scientists had been American. However, the two dozen or so British scientists contributed crucially to the development of the atomic bomb. First, the initial research and reports of British scientists convinced American scientists that an atomic weapons could be constructed before the likely end of hostilities. Secondly their contribution insured the bomb was available in the shortest possible time. Also, because these scientists became involved in post-war politics and in post-war development of nuclear power, they also helped forge the nuclear boundaries of the mid-twentieth century. (UK)

  8. British Columbia, Canada Tsunami Forecast Grids for MOST Model

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The British Columbia, Canada Forecast Model Grids provides bathymetric data strictly for tsunami inundation modeling with the Method of Splitting Tsunami (MOST)...

  9. British Columbia 3 arc-second Bathymetric Digital Elevation Model

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The 3 arc-second British Columbia DEM will be used to support NOAA's tsunami forecast system and for tsunami inundation modeling. This DEM covers the coastal area...

  10. British and American English for Polish University Students

    Science.gov (United States)

    Marton, Waldemar; Preston, Dennis R.

    1975-01-01

    This article attempts to assess the validity of dividing Polish students of English into British and American groups. The tests of the various hypotheses regarding linguistic and non-linguistic results of such divisions are described. (AM)

  11. The main differences between speaking British and American English

    OpenAIRE

    NASONOVA OLGA OLEGOVNA; SMIRNOV KIRILL ALEXANDROVICH

    2016-01-01

    In this article we made a review of the main differences between American and British English. We describe in details the using differences of the both variation in six important aspects: speaking, pronunciation, grammar, vocabulary, punctuation, phrasing.

  12. Shared Concerns: Thoughts on British Literature and British Music in the Long Nineteenth Century

    Directory of Open Access Journals (Sweden)

    Michael Allis

    2005-10-01

    Full Text Available As part of the growth of interdisciplinary studies, a number of recent writings have focused upon links between music and literature in the long nineteenth century. In addition to the general significance of music in the work of individual authors and poets, scholars have highlighted particular imagery used in the literary representation of music (charting its effect on narrative and characterisation, and explored the literary reception of several composers. Within this growing body of literature, references to nineteenth- and early twentieth-century British music are significant by their absence. This article therefore aims to redress the balance by suggesting that there are connections between British music and literature in this period, and that these connections are significant. A number of approaches are discussed to highlight their potential, including composer-author affinities, collaborations, generic parallels, hidden narratives, and the suggestion that musical settings of texts can represent critical ‘readings' of those texts. A range of examples (with musical illustrations and sound clips suggest how this particular interdisciplinary focus can lead to the reassessment of individual musical and literary works, and help to explore wider cultural connections within the Victorian and Edwardian era.

  13. Genre Categorization in Contemporary British and US-American Novels

    OpenAIRE

    Ceia, Carlos

    2016-01-01

    In his article "Genre Categorization in Contemporary British and US-American Novels" Carlos Ceia discusses a certain type of resistance to genre categorization in many novels in contemporary literature. Many British and US-American contemporary novels show patterns in narrative creativity where novel-writing techniques are sometimes more important than the traditional subject matter driven work of fiction. Ceia reviews experimental/metafictional novels which do not show intent to fulfil an ae...

  14. Clothing Benefits Sought: The Case of British Muslims

    OpenAIRE

    Syadiyah Abdul Shukor

    2013-01-01

    The purpose of this study is to explore British Muslims’ clothing benefits sought. Qualitative research was conducted through interviews to explore British Muslims’ clothing consumption. Following this, quantitative research was undertaken by means of a web based survey questionnaire with 30 items referring to clothing benefits sought. The usable questionnaire consisted of 222 respondents. Data analysis includes descriptive analysis, reliability and exploratory factor analysis. Six factors de...

  15. International Students’ Perceptions and Experiences of British Drinking Cultures.

    OpenAIRE

    Thurnell-Read, T.; Brown, Lorraine; Long, Philip

    2018-01-01

    While the increased scale and importance of international students to the UK Higher Education sector is now well established, little is known about the ways in which students from non-UK countries experience and interact with the heavy drinking culture that predominates on and near many British universities. Drawing on qualitative interviews, this article analyses the perceptions, attitudes and experiences of British drinking cultures held by international students studying on postgraduate co...

  16. Big and Little Feet Provincial Profiles: British Columbia

    Directory of Open Access Journals (Sweden)

    Sarah Dobson

    2017-09-01

    Full Text Available This communiqué provides a summary of the production- and consumption-based greenhouse gas emissions accounts for British Columbia, as well as their associated trade flows. It is part of a series of communiqués profiling the Canadian provinces and territories.1 In simplest terms, a production-based emissions account measures the quantity of greenhouse gas emissions produced in British Columbia. In contrast, a consumptionbased emissions account measures the quantity of greenhouse gas emissions generated during the production process for final goods and services that are consumed in British Columbia through household purchases, investment by firms and government spending. Trade flows refer to the movement of emissions that are produced in British Columbia but which support consumption in a different province, territory or country (and vice versa. For example, emissions at the Port of Vancouver that are associated with goods that are subsequently exported to Ontario for sale are recorded as a trade flow from British Columbia to Ontario. Moving in the opposite direction, emissions associated with the production of Alberta crude oil that is refined in British Columbia and sold as motor gasoline to a British Columbia consumer are recorded as a trade flow from Alberta to British Columbia. For further details on these results in a national context, the methodology for generating them and their policy implications, please see the companion papers to this communiqué series: (1 Fellows and Dobson (2017; and (2 Dobson and Fellows (2017. Additionally, the consumption emissions and trade flow data for each of the provinces and territories are available at: http://www.policyschool.ca/embodied-emissions-inputs-outputs-datatables-2004-2011/.

  17. The sixth sense : synaesthesia and British aestheticism, 1860-1900

    OpenAIRE

    Poueymirou, Margaux Lynn Rosa

    2009-01-01

    “The Sixth Sense: Synaesthesia and British Aestheticism 1860-1900” is an interdisciplinary examination of the emergence of synaesthesia conceptually and rhetorically within the ‘art for art’s sake’ movement in mid-to-late Victorian Britain. Chapter One investigates Swinburne’s focal role as both theorist and literary spokesman for the nascent British Aesthetic movement. I argue that Swinburne was the first to practice what Pater meant by ‘aesthetic criticism’ and that synaesthe...

  18. Acculturation and consumer behaviour: a study of British Indians

    OpenAIRE

    Vijaygopal, Rohini

    2010-01-01

    The phenomenon of acculturation and its impact on consumer behaviour in the UK merits greater scrutiny. With a changing national demographic landscape as the backdrop, this research seeks to investigate whether established theories of acculturation are applicable to British Indians and what impact this acculturation has on their consumer behaviour. The first aim of the research is to examine whether British Indians can be classified according to the acculturation framework devised by Berry (1...

  19. Foreign students, visitors and immigration to British Columbia.

    Science.gov (United States)

    Kunin, R

    1993-01-01

    "This report has provided a brief outline of business immigration to Canada and to British Columbia from several source countries in the Asian Pacific Rim. The importance of business immigration to Canada in general, and British Columbia in particular, is [examined].... Even with the limited data currently available, this brief study indicates a very high statistical relationship between business immigration and other less formal and less permanent movements of people such as student flows and visitors." excerpt

  20. Film som kunst:Yinka Shonibare and Black British film

    OpenAIRE

    Petersen, Anne Ring

    2013-01-01

    Films by artists induce scholars to work across art, film and cultural history. Accordingly, this article adopts an interdisciplinary approach to the British-Nigerian artist Yinka Shonibare’s film Un Ballo in Maschera (2004). The film is grounded in Shonibare’s unique use of African-print fabric in conjunction with references to European cultural and political history, but the film is also – it is alleged – rooted in Black British cinema and the transnational postcolonialism which emerged in ...

  1. Submission to the British Columbia government on the Kyoto Protocol

    International Nuclear Information System (INIS)

    2002-09-01

    The Business Council provided its comments concerning the Kyoto Protocol and climate change to the government of British Columbia, recommending that a clear position be established quickly on the matter. The adopted position should also be disseminated broadly to allow stake holders sufficient time to prepare for the upcoming meetings of the Joint Ministers and First Ministers. The federal government has announced that the decision on whether to ratify the Kyoto Protocol will be made before the end of 2002, and this decision will have numerous effects on the people of British Columbia, businesses, workers, and consumers alike. The Business Council of British Columbia believes that the unique interests of the province can best be protected by a proactive approach. Actions plans are being prepared by several of the other provinces and territories, who have already stated their position concerning the Kyoto Protocol. The long-term risks of climate change for British Columbia have not been determined nor have the elements of a provincial approach. The following elements should be included in British Columbia's position on the Kyoto Protocol, according to the Business Council of British Columbia: (1) a credible and cost-effective implementation plan that does not unduly burden the province and other jurisdictions must be developed before Canada decides to ratify the Protocol. British Columbia should go on the record stating it does not support the ratification of the Kyoto Protocol in its present form. (2) the province should advocate for a national approach to climate change that can be achieved within a reasonable time frame, reflects the long-term nature of the problem, and is in agreement with the economic development objectives of British Columbia, (3) a plan detailing how the province intends to deal with the growth of greenhouse gas emissions should supplement and support the position of the province on the Kyoto Protocol. Consumers and business should be engaged

  2. Rayleigh wave tomography of the British Isles from ambient seismic noise

    Science.gov (United States)

    Nicolson, Heather; Curtis, Andrew; Baptie, Brian

    2014-08-01

    We present the first Rayleigh wave group speed maps of the British Isles constructed from ambient seismic noise. The maps also constitute the first surface wave tomography study of the crust under the British Isles at a relatively high resolution. We computed interferometric, interstation Rayleigh waves from vertical component records of ambient seismic noise recorded on 63 broad-band and short-period stations across the UK and Ireland. Group velocity measurements were made from the resulting surface wave dispersion curves between 5 and 25 s using a multiple phase-matched filter method. Uncertainties in the group velocities were computed by calculating the standard deviation of four dispersion curves constructed by stacking a random selection of daily cross-correlations. Where an uncertainty could not be obtained for a ray path using this method, we estimated it as a function of the interreceiver distance. Group velocity maps were computed for 5-25-s period using the Fast Marching forward solution of the eikonal equation and iterative, linearized inversion. At short and intermediate periods, the maps show remarkable agreement with the major geological features of the British Isles including: terrane boundaries in Scotland; regions of late Palaeozoic basement uplift; areas of exposed late Proterozoic/early Palaeozoic rocks in southwest Scotland, northern England and northwest Wales and, sedimentary basins formed during the Mesozoic such as the Irish Sea Basin, the Chester Basin, the Worcester Graben and the Wessex Basin. The maps also show a consistent low-velocity anomaly in the region of the Midlands Platform, a Proterozoic crustal block in the English Midlands. At longer periods, which are sensitive velocities in the lower crustal/upper mantle, the maps suggest that the depth of Moho beneath the British Isles decreases towards the north and west. Areas of fast velocity in the lower crust also coincide with areas thought to be associated with underplating of the

  3. Learning to ensure patient safety in clinical settings: comparing Finnish and British nursing students' perceptions.

    Science.gov (United States)

    Tella, Susanna; Smith, Nancy-Jane; Partanen, Pirjo; Jamookeeah, David; Lamidi, Marja-Leena; Turunen, Hannele

    2015-10-01

    To explore and compare Finnish and British nursing students' perceptions of their learning about patient safety in clinical settings. Patient safety culture and practices in different health care organisations and clinical units varies, posing challenges for nursing students' learning about patient safety during their clinical placements. Patient safety as a growing international concern has challenged health care professionals globally requiring a comprehensive review. International studies comparing nursing education about patient safety are lacking. A cross-sectional comparative study. The participants were final year preregistration nursing students from two universities of applied sciences in Finland (n = 195) and from two universities in England, UK (n = 158). The data were collected with the Patient Safety in Nursing Education Questionnaire and analysed with principal component analysis, Pearson Chi-Square and Mann-Whitney U tests and logistic regression. Finnish nursing students had significantly more critical perceptions on their learning about patient safety in clinical settings than their British peers. A strong predictor for differences was supportive and systems-based approaches in learning to ensure patient safety. Notably, fewer Finnish students had practiced reporting of incidents in clinical settings compared to British students. In both countries, the students held learning about patient safety in higher esteem compared to their learning experiences in clinical settings. Nursing students appear to want more learning opportunities related to patient safety compared to the reality in clinical settings. Learning systematically from errors in a supportive environment and having systems-based approaches to ensure patient safety are essential elements for nursing students' learning about safe practice. Finnish students seem to experience more barriers in learning about safe practices and to report errors than the British students. Health care

  4. Newer Trends in Laser Tattoo Removal

    Science.gov (United States)

    Shah, Swapnil D; Aurangabadkar, Sanjeev J

    2015-01-01

    Q switched lasers are the current gold standard for laser tattoo removal. Though these systems are generally quite effective in clearing tattoos & have an established safety record, certain limitations exist while following the standard protocol. To overcome these limitation newer techniques such as multipass method, combination treatments with chemical agent and other laser have been introduced. These methods help in faster, less painful and complication free tattoo removal. PMID:25949019

  5. Newer trends in laser tattoo removal

    Directory of Open Access Journals (Sweden)

    Swapnil D Shah

    2015-01-01

    Full Text Available Q switched lasers are the current gold standard for laser tattoo removal. Though these systems are generally quite effective in clearing tattoos & have an established safety record, certain limitations exist while following the standard protocol. To overcome these limitation newer techniques such as multipass method, combination treatments with chemical agent and other laser have been introduced. These methods help in faster, less painful and complication free tattoo removal.

  6. The Standards Debate across the Atlantic.

    Science.gov (United States)

    Bruce, Michael G.

    1991-01-01

    As European countries become integrated into the European Community, they are examining each other's standards and those of the U.S. and Japan. British and French high school graduation practices are based on terminal assessment. All European universities charge home students only nominal fees; all European countries have elaborate student finance…

  7. Laser welding engineering

    International Nuclear Information System (INIS)

    Bhieh, N. M.; El Eesawi, M. E.; Hashkel, A. E.

    2007-01-01

    Laser welding was in its early life used mainly for unusual applications where no other welding process would be suitable that was twenty five years ago. Today, laser welding is a fully developed part of the metal working industry, routinely producing welds for common items such as cigarette lighters, which springs, motor/transformer lamination, hermetic seals, battery and pacemaker cans and hybrid circuit packages. Yet very few manufacturing engineering have seriously considers employing lasers in their own operations. Why? There are many reasons, but a main one must be not acquainted with the operation and capabilities of a laser system. Other reasons, such as a relatively high initial cost and a concern about using lasers in the manufacturing environment, also are frequently cited, and the complexity of the component and flexibility of the light delivery system. Laser welding could be used in place of many different standard processes, such as resistance (spot or seam), submerged arc, RF induction, high-frequency resistance, ultrasonic and electronic and electron-beam. while each of these techniques has established an independent function in the manufacturing world, the flexible laser welding approach will operate efficiently and economically in many different applications. Its flexibility will even permit the welding system to be used for other machining function, such as drilling, scribing, sealing and serializing. In this article, we will look at how laser welding works and what benefits it can offer to manufacturing engineers. Some industry observers state that there are already 2,000 laser machine tools being used for cutting, welding and drilling and that the number could reach 30,000 over the next 15 years as manufacturing engineers become more aware of the capabilities of lasers [1). While most laser applications are dedicated to one product or process that involves high-volume, long-run manufacturing, the flexibility of a laser to supply energy to hard

  8. Britishness and Community Cohesion in Muslim News Online

    Directory of Open Access Journals (Sweden)

    Hassen ZRIBA

    2013-12-01

    Full Text Available The issues of British national identity and social cohesion have become pressing concerns within the multicultural fabric of contemporary British society. The increasing number of immigrants and their offspring, along with the maintenance of their cultural roots, seem to represent a serious defiance to social cohesion and the alleged “purity” of Britishness. A number of race related reports were produced by the official authorities to churn out the necessary steps to be followed by the British (immigrants and host community in order to keep social stability and community cohesion. Thus, the politics of community cohesion came to the fore as the neologism of contemporary British political discourse. Such new discourse of governance has been digested and processed differently by different mass media. It has been decoded, for instance, preferably by mainstream news agencies like BBC News Online. However, arguably, it is read appositionally or at best negotiatedly by ethnicity-related news agencies such as Muslim News Online. In this article, attempt has been made to adopt media discourse analysis tools to decipher the ways Muslim News Online decoded and then encoded the hegemonic official discourses of Britishness and community cohesion. A critical and interpretative approach is used to accomplish such study. The corpus of this study is primarily extracted from the website of the Muslim News Online.

  9. British-Zionist Military Cooperation in Palestine, 1917-1939

    Directory of Open Access Journals (Sweden)

    Mohsen M. Saleh

    2003-12-01

    Full Text Available The essence of the British military and security formula in Palestine was the smooth establishment of the Jewish national home with minimum costs of lives and money. However, this British pro-Zionist policy created a continuous security problem, and opened the door to all possibilities of Palestinian revolts and uprisings of both national and religious nature. The British were very active in disarming the Arabs and adopted stringent measures to crush their uprisings and revolts. But, they turned a blind eye to the Jewish arms smuggling and Jewish military organizations, especially, the Hagana, which later became the backbone of the Israeli Army. During Palestinian uprisings of 1920, 1921 and 1929 against the Zionists, most of the Palestinian casualties were inflicted by the British forces despite the fact that the Palestinians avoided attacking the British. The British-Zionist cooperation reached its peak during the Palestinian revolt of 1936-1939, and took different forms, including allowing the Jews to establish a military force of twenty two thousand men under the pretext of protecting the Jewish community.

  10. Breast cancer risk in a screening cohort of Asian and white British/Irish women from Manchester UK.

    Science.gov (United States)

    Evans, D Gareth; Brentnall, Adam R; Harvie, Michelle; Astley, Susan; Harkness, Elaine F; Stavrinos, Paula; Donnelly, Louise S; Sampson, Sarah; Idries, Faiza; Watterson, Donna; Cuzick, Jack; Wilson, Mary; Jain, Anil; Harrison, Fiona; Maxwell, Anthony J; Howell, Anthony

    2018-01-25

    The differences between breast cancer risk factors in white British/Irish and Asian women attending screening in the UK are not well documented. Between 2009-15 ethnicity and traditional breast cancer risk factors were self-identified by a screening cohort from Greater Manchester, with follow up to 2016. Risk factors and incidence rates were compared using age-standardised statistics (European standard population). Eight hundred and seventy-nine Asian women and 51,779 unaffected white British/Irish women aged 46-73 years were recruited. Asian women were at lower predicted breast cancer risk from hormonal and reproductive risk factors than white British/Irish women (mean 10 year risk 2.6% vs 3.1%, difference 0.4%, 95%CI 0.3-0.5%). White British/Irish women were more likely to have had a younger age at menarche, be overweight or obese, taller, used hormone replacement therapy and not to have had children.. However, despite being less overweight Asian women had gained more weight from age 20 years and were less likely to undertake moderate physical activity. Asian women also had a slightly higher mammographic density. Asian age-standardised incidence was 3.2 (95%CI 1.6-5.2, 18 cancers) per thousand women/year vs 4.5 (95%CI 4.2-4.8, 1076 cancers) for white British/Irish women. Asian women attending screening in Greater Manchester are likely to have a lower risk of breast cancer than white British/Irish women, but they undertake less physical activity and have more adult weight gain.

  11. Laser photocoagulation - eye

    Science.gov (United States)

    Laser coagulation; Laser eye surgery; Photocoagulation; Laser photocoagulation - diabetic eye disease; Laser photocoagulation - diabetic retinopathy; Focal photocoagulation; Scatter (or pan retinal) photocoagulation; Proliferative ...

  12. Explaining British Political Stability After 1832

    Directory of Open Access Journals (Sweden)

    Donagh Davis

    2017-12-01

    Full Text Available Though not its main focus, Goldstone's Revolution and Rebellion in the Early Modern World (1991 threw considerable new light on 19th century Europe's revolutions and near-revolutions. While Goldstone stresses the role of an expanding and industrializing economy in absorbing 19th century England's demographic shocks, we accept this analysis but argue alongside it for similar attention to the vector of emigration, settler-colonialism, and imperial state expansion into which at least some of the exhaust fumes of the population explosion were vented. Furthermore, it is important to note the crucial role of a highly interventionist state and 'big' government in the background to these dynamics—a far cry from the light-touch, laissez-faire qualities with which the 19th century British state is often associated. To make our case, this article takes advantage of secondary literature and raw data not available prior to the publication of Goldstone's book. Of crucial importance here is our unique dataset of fatality-inducing political violence events in Britain and Ireland from 1785 to 1900. This is the first research paper to utilise this dataset. We draw upon this in the following section, which seeks to establish what the real level of political instability was in 19th century Britain—thus cross-referencing Goldstone's account with more recent data—before moving on in the following section to a more detailed overview of the socio-economic conditions underlying events at the political level. This is followed by our account of the emigration-settler-colonialism-imperial state expansion vector and the interventionist state policy behind it, which we argue was crucial to making 19th century Britain relatively 'revolution-proof'—alongside the expanding economic opportunities rightly highlighted by Goldstone. Lastly come our brief concluding remarks, which lay out the implications, as we see them, of this article's findings for research on

  13. Exclusiveness and Inclusiveness in the British National Identity

    Directory of Open Access Journals (Sweden)

    Hassen Zriba

    2018-04-01

    Full Text Available The issue of identity has been a fundamental one in virtually all human societies. The binary questions “who are we?” and “who are not we?” are constitutive of the meaning of any identity formation. Identity is an elusive concept that generates more questions than answers. Multifarious challenges face identity formation and consolidation which makes those two processes hard multidimensional tasks. In Britain, the concept of identity is central given the complex multinational and multicultural character of the nation. In their contact with different nations and peoples (the imperial experience, the British found themselves constantly negotiating their identity. They defined themselves with what they are and with what they are not as well. The British national identity or what is widely known as Britishness, has been a fuzzy and a difficult-to-define concept. It has been defined in different ways by different political sociologists each focusing on a distinctive aspect of the concept according to one’s perspective. It is a legal and political notion for politicians, an important cohesive concept for sociologists and a major source of identity for cultural critics. However, we propose in this article to broach the concept from an historical race-related perspective. We argue that the concept has been a useful index of the changing character of post-war race-related British politics. Historically, British race politics can roughly be divided into two major phases: the Assimilationist phase (starting from 1945 till the end 1970’s and Multicultural phase (1980 till now. The assimilationist Britishness was based on a racial definition that excluded the different “other” (the alien, the immigrant whereas the multicultural Britishness has been more tolerant and inclusive of difference. This article attempts to trace the ups and downs of the British national identity (Britishness within the context of contemporary multicultural British

  14. Forming Pedagogical Aesthetic Culture of Students in British Experience

    Directory of Open Access Journals (Sweden)

    Papushyna Valentyna

    2017-09-01

    Full Text Available The author of the article analyzes the concept and primary factors of personality aesthetic culture development in the context of higher education in England. The scholars’ works and pedagogical advanced experience of the country nowadays pay special attention to forming personal creativity and self-realization of modern specialists. They are grounded on a high level of aesthetic culture. Among these essential conditions, the following are indicated: solving the issue of forming aesthetic culture at the national level, financing educational cultural projects and the cultural environment in educational institutions, functioning a wide network of cultural centers, which create the opportunities for everybody to aspire to cultural development. Determining the role of control and coordination of the process of forming students’ aesthetic culture, the author highlights the state policy that is interested in education of personal aesthetic culture as well as encourages students’ creative projects. The pedagogical factors of forming aesthetic culture in higher education institutions have been distinguished, namely, aestheticization of the education process, integration of academic subjects and art, implementation of art disciplines, introduction of new methodologies and technologies in the education process. In the article, there have been shown the best standards of experience of English pedagogy for higher education institutions, indicated on the research base of foreign and native scholars. They deserve a thorough study and adoption: collaboration between artists, culture experts an educational institutions, aesthetic practice of students as a part of public life, support of modern cultural-aesthetic environment of educational institutions. It has been concluded that the British education system offers exciting possibilities for development of aesthetic interests for everybody who aims at cultural growth with the help of the wide network of

  15. Quantitative analysis of antimicrobial use on British dairy farms.

    Science.gov (United States)

    Hyde, Robert M; Remnant, John G; Bradley, Andrew J; Breen, James E; Hudson, Christopher D; Davies, Peers L; Clarke, Tom; Critchell, Yvonne; Hylands, Matthew; Linton, Emily; Wood, Erika; Green, Martin J

    2017-12-23

    Antimicrobial resistance has been reported to represent a growing threat to both human and animal health, and concerns have been raised around levels of antimicrobial usage (AMU) within the livestock industry. To provide a benchmark for dairy cattle AMU and identify factors associated with high AMU, data from a convenience sample of 358 dairy farms were analysed using both mass-based and dose-based metrics following standard methodologies proposed by the European Surveillance of Veterinary Antimicrobial Consumption project. Metrics calculated were mass (mg) of antimicrobial active ingredient per population correction unit (mg/PCU), defined daily doses (DDDvet) and defined course doses (DCDvet). AMU on dairy farms ranged from 0.36 to 97.79 mg/PCU, with a median and mean of 15.97 and 20.62 mg/PCU, respectively. Dose-based analysis ranged from 0.05 to 20.29 DDDvet, with a median and mean of 4.03 and 4.60 DDDvet, respectively. Multivariable analysis highlighted that usage of antibiotics via oral and footbath routes increased the odds of a farm being in the top quartile (>27.9 mg/PCU) of antimicrobial users. While dairy cattle farm AMU appeared to be lower than UK livestock average, there were a selection of outlying farms with extremely high AMU, with the top 25 per cent of farms contributing greater than 50 per cent of AMU by mass. Identification of these high use farms may enable targeted AMU reduction strategies and facilitate a significant reduction in overall dairy cattle AMU. © British Veterinary Association (unless otherwise stated in the text of the article) 2017. All rights reserved. No commercial use is permitted unless otherwise expressly granted.

  16. Safe laser application requires more than laser safety

    Science.gov (United States)

    Frevel, A.; Steffensen, B.; Vassie, L.

    1995-02-01

    An overview is presented concerning aspects of laser safety in European industrial laser use. Surveys indicate that there is a large variation in the safety strategies amongst industrial laser users. Some key problem areas are highlighted. Emission of hazardous substances is a major problem for users of laser material processing systems where the majority of the particulate is of a sub-micrometre size, presenting a respiratory hazard. Studies show that in many cases emissions are not frequently monitored in factories and uncertainty exists over the hazards. Operators of laser machines do not receive adequate job training or safety training. The problem is compounded by a plethora of regulations and standards which are difficult to interpret and implement, and inspectors who are not conversant with the technology or the issues. A case is demonstrated for a more integrated approach to laser safety, taking into account the development of laser applications, organizational and personnel development, in addition to environmental and occupational health and safety aspects. It is necessary to achieve a harmonization between these elements in any organization involved in laser technology. This might be achieved through establishing technology transfer centres in laser technology.

  17. Report of the expert committee on the review of data on atmospheric fallout arising from British nuclear tests in Australia

    International Nuclear Information System (INIS)

    1984-01-01

    The terms of reference of the committee were to review the published scientific literature and other relevant scientific data on the short and long-term effects of fallout arising from British nuclear tests in Australia; to comment on the adequacy of the data available and the collection methodology; to assess the fallout levels arising from each of the tests, the immediate and subsequent hazards from the fallout to the Australian population and individual Australians, including Australian personnel involved and aborigines in South Australia, and the adequacy of the criteria for safe firing of each of the tests. A comparison is made of radiation protection standards adopted during the nuclear test period with current standards. The recommendations include the setting up of a public inquiry to determine how the conduct and consequences of the British nuclear tests affected the health and well-being of Australians

  18. Gambian-British and Nigerian-British Children's and Families' Experiences of Migration "Back" to West Africa. Research Briefing No. 13

    Science.gov (United States)

    Roberts-Holmes, Guy

    2013-01-01

    This research looks at the factors motivating Gambian-British and Nigerian-British parents to send their children "back" to West Africa and what this means for parents, children and families on both continents.

  19. [Pigmentary lasers].

    Science.gov (United States)

    Passeron, Thierry; Toubel, Gérard

    2009-10-01

    The pigmentary disorders are a very heterogeneous group with a high therapeutic demand from the patients. The lasers have provided a major advance in the treatment of some pigmentary lesions. The indication and the optimal parameters are actually quite well defined. However, pigmentary lasers have limits and some dermatosis can even be worsened after laser treatment. Those limitations as well as the potential side effects have to clearly be explained to the patients that often seek for a miracle cure.

  20. Laser accelerator

    OpenAIRE

    Vigil, Ricardo

    2014-01-01

    Approved for public release; distribution is unlimited In 1979,W. B. Colson and S. K. Ride proposed a new kind of electron accelerator using a uniform magnetic field in combination with a circularly-polarized laser field. A key concept is to couple the oscillating electric field to the electron’s motion so that acceleration is sustained. This dissertation investigates the performance of the proposed laser accelerator using modern high powered lasers and mag-netic fields that are significan...

  1. Laser fusion

    International Nuclear Information System (INIS)

    Eliezer, S.

    1982-02-01

    In this paper, the physics of laser fusion is described on an elementary level. The irradiated matter consists of a dense inner core surrounded by a less dense plasma corona. The laser radiation is mainly absorbed in the outer periphery of the plasma. The absorbed energy is transported inward to the ablation surface where plasma flow is created. Due to this plasma flow, a sequence of inward going shock waves and heat waves are created, resulting in the compression and heating of the core to high density and temperature. The interaction physics between laser and matter leading to thermonuclear burn is summarized by the following sequence of events: Laser absorption → Energy transport → Compression → Nuclear Fusion. This scenario is shown in particular for a Nd:laser with a wavelength of 1 μm. The wavelength scaling of the physical processes is also discussed. In addition to the laser-plasma physics, the Nd high power pulsed laser is described. We give a very brief description of the oscillator, the amplifiers, the spatial filters, the isolators and the diagnostics involved. Last, but not least, the concept of reactors for laser fusion and the necessary laser system are discussed. (author)

  2. Biocavity Lasers

    Energy Technology Data Exchange (ETDEWEB)

    Gourley, P.L.; Gourley, M.F.

    2000-10-05

    Laser technology has advanced dramatically and is an integral part of today's healthcare delivery system. Lasers are used in the laboratory analysis of human blood samples and serve as surgical tools that kill, burn or cut tissue. Recent semiconductor microtechnology has reduced the size o f a laser to the size of a biological cell or even a virus particle. By integrating these ultra small lasers with biological systems, it is possible to create micro-electrical mechanical systems that may revolutionize health care delivery.

  3. British sociology and public intellectuals: consumer society and imperial decline.

    Science.gov (United States)

    Turner, Bryan S

    2006-06-01

    The following is the lecture given for the BJS 2005 Public Sociology Debate given at the London School of Economics and Political Science on ll October 2005. This lecture on the character of British sociology provides a pretext for a more general inquiry into public intellectual life in postwar Britain. The argument put forward falls into several distinctive sections. First, British social science has depended heavily on the migration of intellectuals, especially Jewish intellectuals who were refugees from fascism. Second, intellectual innovation requires massive, disruptive, violent change. Third, British sociology did nevertheless give rise to a distinctive tradition of social criticism in which one can argue there were (typically home-grown) public intellectuals. The main theme of their social criticism was to consider the constraining and divisive impact of social class, race and gender on the enjoyment of expanding social citizenship. Fourth, postwar British sociology came to be dominated by the analysis of an affluent consumer society. Finally, the main failure of British sociology in this postwar period was the absence of any sustained, macro-sociological analysis of the historical decline of Britain as a world power in the twentieth century.

  4. Industrial natural gas supply options in British Columbia

    International Nuclear Information System (INIS)

    1994-01-01

    Information is provided on the availability and cost of natural gas in British Columbia for use by firms interested in establishing gas-intensive industrial facilities in the province. British Columbia has an abundant supply of natural gas, originating mainly from deposits in the westernmost part of the Western Canadian Sedimentary Basin in the northeast part of the province. Recoverable resources in British Columbia are estimated at 1,000-1,400 billion m 3 . Over 200 producers compete to sell natural gas for both domestic and export markets. Gathering, processing, and transmission of the gas is undertaken mainly by the Westcoast Energy pipeline system, and distribution is undertaken by several distribution utilities. At present, all large industrial gas users buy their firm gas requirements directly from gas producers, often using gas marketers or brokers to assist in purchasing. Regulation of the gas industry is performed by the British Columbia Utilities Commission, which sets rules for energy supply contracts, and by the National Energy Board, which sets tolls for gathering, processing, and transporting gas. Factors affecting gas pricing are discussed, with reference to both the wellhead price and the cost of gathering, processing, and transportation. Firm gas costs for two hypothetical industrial loads in British Columbia are illustrated. Potential intensive uses of natural gas in the province are outlined, including power generation, liquefaction for export, manufacturing, production of direct reduced iron, and as petrochemical feedstocks. 5 figs., 2 tabs

  5. Teaching (about) Britishness? An Investigation into Trainee Teachers' Understanding of Britishness in Relation to Citizenship and the Discourse of Civic Nationalism

    Science.gov (United States)

    Jerome, Lee; Clemitshaw, Gary

    2012-01-01

    This research was prompted by the developing political discourse proposing the teaching of Britishness and British values in the context of the United Kingdom. This discourse will be reviewed in the first part of the article, in the context of previous work which has sought to assess how Britishness and related concepts might be promoted through…

  6. High power lasers & systems

    OpenAIRE

    Chatwin, Chris; Young, Rupert; Birch, Philip

    2015-01-01

    Some laser history;\\ud Airborne Laser Testbed & Chemical Oxygen Iodine Laser (COIL);\\ud Laser modes and beam propagation;\\ud Fibre lasers and applications;\\ud US Navy Laser system – NRL 33kW fibre laser;\\ud Lockheed Martin 30kW fibre laser;\\ud Conclusions

  7. Photonic crystal distributed feedback fiber lasers with Bragg gratings

    DEFF Research Database (Denmark)

    Søndergaard, Thomas

    2000-01-01

    Two new types of optical fibers, where air-holes are running down their length, are considered for making fiber lasers with Bragg gratings. The mode areas for pump and signal in these fiber lasers may be either larger or smaller compared to the corresponding mode areas for fiber lasers based...... on standard step index fibers. This makes possible realization of fiber lasers with a low pump threshold (small mode area), and fiber lasers suitable for high-power applications (large mode area)...

  8. Laser cooling of molecular anions.

    Science.gov (United States)

    Yzombard, Pauline; Hamamda, Mehdi; Gerber, Sebastian; Doser, Michael; Comparat, Daniel

    2015-05-29

    We propose a scheme for laser cooling of negatively charged molecules. We briefly summarize the requirements for such laser cooling and we identify a number of potential candidates. A detailed computation study with C_{2}^{-}, the most studied molecular anion, is carried out. Simulations of 3D laser cooling in a gas phase show that this molecule could be cooled down to below 1 mK in only a few tens of milliseconds, using standard lasers. Sisyphus cooling, where no photodetachment process is present, as well as Doppler laser cooling of trapped C_{2}^{-}, are also simulated. This cooling scheme has an impact on the study of cold molecules, molecular anions, charged particle sources, and antimatter physics.

  9. Laser Cooling of Molecular Anions

    CERN Document Server

    Yzombard, Pauline; Gerber, Sebastian; Doser, Michael; Comparat, Daniel

    2015-01-01

    We propose a scheme for laser cooling of negatively charged molecules. We briefly summarise the requirements for such laser cooling and we identify a number of potential candidates. A detailed computation study with C$\\_2^-$, the most studied molecular anion, is carried out. Simulations of 3D laser cooling in a gas phase show that this molecule could be cooled down to below 1 mK in only a few tens of milliseconds, using standard lasers. Sisyphus cooling, where no photo-detachment process is present, as well as Doppler laser cooling of trapped C$\\_2^-$, are also simulated. This cooling scheme has an impact on the study of cold molecules, molecular anions, charged particle sources and antimatter physics.

  10. British Minister over the moon after visit to CERN

    CERN Multimedia

    2008-01-01

    The UK Minister for Science and Innovation, Ian Pearson MP, recently visited CERN. Ian Pearson, UK Minister for Science and Innovation (back row, third left), in the LHC tunnel with Peter Jenni, ATLAS Spokesperson (back row, centre), John Ellis (back row, third right), Simon Featherstone, UK Ambassador to Switzerland (back row, far left), Keith Mason, Chief Executive of STFC (the UK funding agency) (back row, second from right), and British scientists working at ATLAS.On the 15 April UK Minister for Science and Innovation, Ian Pearson, made his first trip to CERN. The UK is one of the founding Member States of CERN, and the British contingent is one of the largest of any country with around 650 British scientists and a further 250 staff members working here. After an introduction to the facilities by Director-General Robert Aymar, who expressed CERN’s gratitude for UK government support through its Science and Technology Facilitie...

  11. British Gas: remuneration. There may be trouble ahead

    International Nuclear Information System (INIS)

    Anon.

    1995-01-01

    When the Chairman and Chief Executive of British Gas was awarded a huge salary increase recently, a major revolt occurred amongst 4,000 of British Gas's small shareholders. The increase was awarded despite the intense opposition because the pension funds voted with the Board. A critique is offered of the occasion, and a comparison with the rather fairer rise requested by Ofgas's Director General, the gas company regulator, who had been paid as a 3 day a week contract, but had been working six days a week. With deregulation of the gas supply market, British Gas has been under governmental pressure to publish its prices, and has been undercut by competitors. The newly developed contractural relationships in the United Kingdom gas market are very complex and, for the first time subject to legal enforcement. (UK)

  12. British Exit from the EU: Legal and Political Implications

    DEFF Research Database (Denmark)

    2016-01-01

    on their debate character, i.e. the degree to which individual contributions engage with each other. The inaugural Debate Section forthcoming soon is entitled, “British Exit from the EU: Legal and Political Implications”, edited by Graham Butler, Mads Dagnis Jensen and Holly Snaith. The reality of an EU Member...... to the three editors of Graham Butler, Mads Dagnis Jensen, and Holly Snaith, the Debate Section includes contributions from Paul James Cardwell, Adam Łazowski, Daniela Annette Kroll, Dirk Leuffen, and Tim Oliver, that each delivers sharp compact contributions on different perspectives of ‘Brexit’, and wider...... issues of differentiated integration in Europe. British Exit from the EU: Legal and Political Implications  Edited by Graham Butler, Mads Dagnis Jensen, and Holly Snaith  Journal of European Public Policy, 2016, Volume 23, Issue 9, pp. 1278-1328. 1. ‘Slow change may pull us apart’: debating a British...

  13. British Energy - nuclear power in the private sector

    International Nuclear Information System (INIS)

    Hawley, R.

    1997-01-01

    The first four months of the operation of British Energy as a privatised nuclear utility are briefly reviewed. Operational and financial performance have been good as exemplified by the figures for power output and financial return. Freedom from government control means that the options open to the company are much wider but the need to meet the expectations of shareholders is a major consideration. Added to this, the competitive nature of the electricity industry means that the cost reduction is important, though this cannot be at the expense of safety. Shareholder expectations make the funding of new nuclear power stations unrealistic at present. Increasingly, however, markets are opening up in the maintenance of existing plant and the decommissioning of older plant. The British Energy Group also has considerable expertise in the design, operation and management of power stations and of acting in a competitive energy market that could be exported. British Energy's International Division is in place to develop this potential. (UK)

  14. Electricity and Empire in 1920s Palestine under British Rule.

    Science.gov (United States)

    Shamir, Ronen

    2016-12-01

    This article examines some techno-political aspects of the early years of electrification in British-ruled 1920s Palestine. It emphasizes the importance of local technical, topographical and hydrological forms of knowledge for understanding the dynamics of electrification. Situating the analysis in a general colonial context of electrification, the study shows that British colonial rulers lagged behind both German firms and local entrepreneurs in understanding the specific conditions pertaining to electrification in Palestine. Subsequently, the study shows that the British had limited control of the actual electrification process and its declared/professed developmental purposes, thereby complicating assumptions about electrification as a tool of the Empire/tool of empire. Finding some similarities between the cases of electrifying Palestine and India, the article's findings may shed further light on the importance of micro-politics of knowledge for understanding the trajectory of electrification in the colonies.

  15. Postponement and childlessness - Evidence from two British cohorts

    Directory of Open Access Journals (Sweden)

    Heather Joshi

    2008-11-01

    Full Text Available This paper starts by reviewing existing projections of childlessness among British men and women. Low current fertility implies high eventual childlessness unless the postponement of parenthood is taken into account. Such re-timing of first births appears to be occurring differentially across social groups. Exploiting the disaggregated evidence of two British cohort studies, the 1958 National Child Development Study and the 1970 British Cohort Survey, this paper investigates the extent of postponement across cohorts and projects its impact on eventual levels of childlessness. Men and women are considered separately in our models of a population stratified by educational attainment. We find the most striking postponement occurring among graduate men. Among graduate women, after taking family building intentions into account, we estimate that about a quarter of 1970 born graduate women will remain childless, rather than something nearer 40 per cent as had been conjectured elsewhere.

  16. Planning Sign Languages: Promoting Hearing Hegemony? Conceptualizing Sign Language Standardization

    Science.gov (United States)

    Eichmann, Hanna

    2009-01-01

    In light of the absence of a codified standard variety in British Sign Language and German Sign Language ("Deutsche Gebardensprache") there have been repeated calls for the standardization of both languages primarily from outside the Deaf community. The paper is based on a recent grounded theory study which explored perspectives on sign…

  17. Mirrorless lasers

    Indian Academy of Sciences (India)

    conventional laser, the random laser had one partially reflecting mirror for providing an output port, and a surface or volume scatterer at the other end to provide non-resonant feedback. The volume scatterer was a suspension of chalk particles (about 20 microns di- ameter), in water and surface scatterer was a plate with a ...

  18. excimer laser

    Indian Academy of Sciences (India)

    2014-01-07

    Jan 7, 2014 ... is necessary to deposit one order higher input electric power into gas medium than those required for XeCl and KrF lasers. ... neon/helium at a pressure of a few bars was excited by transverse electric discharge. The. Figure 6. Laser pulse ... and also to drive discharge rapidly. The discharge chamber was ...

  19. Laser yellowing

    Indian Academy of Sciences (India)

    environmental degradation of surfaces. Pulsed lasers are generally used for ... sorb contamination very strongly while the underlying substrate is left untouched thus rendering the process self-limiting. ... contaminated with two different encrustations, using short free running Nd:YAG and long Q-switched Nd:YAG laser ...

  20. On the domestic standards for Smart Cities

    Directory of Open Access Journals (Sweden)

    Dmitry Namiot

    2016-07-01

    Full Text Available The article discusses the development and use of standards for Smart Cities. This paper considers the current ecosystem of standards in this area, and analyzes the possible development of work in this direction. The article provides the analysis of the works of the British standards Institute, which are quite far advanced in this area. Also provides a critical assessment of the state of affairs in Russia with the standardization in the field of Smart Cities and Internet of Things. In conclusion, the authors offer their vision of development work on Smart City in Russia.

  1. Comparative hazard evaluation of near-infrared diode lasers.

    Science.gov (United States)

    Marshall, W J

    1994-05-01

    Hazard evaluation methods from various laser protection standards differ when applied to extended-source, near-infrared lasers. By way of example, various hazard analyses are applied to laser training systems, which incorporate diode lasers, specifically those that assist in training military or law enforcement personnel in the proper use of weapons by simulating actual firing by the substitution of a beam of near-infrared energy for bullets. A correct hazard evaluation of these lasers is necessary since simulators are designed to be directed toward personnel during normal use. The differences among laser standards are most apparent when determining the hazard class of a laser. Hazard classification is based on a comparison of the potential exposures with the maximum permissible exposures in the 1986 and 1993 versions of the American National Standard for the Safe Use of Lasers, Z136.1, and the accessible emission limits of the federal laser product performance standard. Necessary safety design features of a particular system depend on the hazard class. The ANSI Z136.1-1993 standard provides a simpler and more accurate hazard assessment of low-power, near-infrared, diode laser systems than the 1986 ANSI standard. Although a specific system is evaluated, the techniques described can be readily applied to other near-infrared lasers or laser training systems.

  2. Environmental standards provide competitive advantage

    International Nuclear Information System (INIS)

    Chynoweth, E.; Kirshner, E.

    1993-01-01

    Quality organizations are breaking new ground with the development of international standards for environmental management. These promise to provide the platform for chemical companies wanting to establish their environmental credibility with a global audience. open-quotes It will be similar to auditing our customers to ISO 9000 close-quote, says the environmental manager for a European chemical firm. open-quote We will only want to deal with people who have got their environmental act together. And we'll be in a better competitive positions close-quote. The International Organization for Standardization (ISO;Geneva) has set up a taskforce to develop an environmental management standard, which is expected to be completed by the mid-1990s. Observers think the ISO standard will draw heavily on the British Standard Institute's (BSI;London) environmental management standard, BS7750, which will likely be the first system adopted in the world. Published last year, BS7750 has been extensively piloted in the UK (CW, Sept. 30, 1992, p. 62) and is now set to be revised before being offically adopted by BSI. The UK's Chemical Industries Association (CIA;London) is anxious to prevent a proliferation of standards, and its report on BS7750 pilot projects calls for an approach integrating quality, environment, and health and safety. But standard setters, including ISO, appear to be moving in the opposite direction. In the US, the American national Standards Institute (ANSI;Washington) has started work on an environmental management standard

  3. Norwegian supply of goods and services to the British offshore sector

    International Nuclear Information System (INIS)

    Heide, M.; Noedland, S.I.

    1991-02-01

    Representatives from ten Norwegian companies in the offshore supplies industry were interviewed to explore the opportunities and barriers they had experienced in their effort to enter the British offshore sector. The interviews revealed that there are mainly four reasons why British sector is regarded as a favorable market: British sector is a natural homemarket, buyers operate both on the British and the Norwegian sector, the British sector can be a ''door-opener'' to the rest of the English speaking world, and finally the British sector is a market of considerable size. The companies had mainly encountered three types of barriers: British culture/communication problems, heavy competition from British suppliers, and protectionism. The report is concluded by summarizing what we believe are the critical success factors for entering the British sector. Directions for further research are also given

  4. Botanical forest products in British Columbia: An overview

    Energy Technology Data Exchange (ETDEWEB)

    De Geus, N.

    1994-12-31

    This report gives an overview of the botanical forest products harvest in British Columbia; discusses the issues of sustainability, multiple forest resource use, revenue to government, social and economic factors, health and safety, and interagency coordination; and gives recommendations for managing the industry. The report describes the industry and the harvest in British Columbia and other jurisdictions of wild edible mushrooms; floral and greenery products such cedar foliage and white pine boughs; medicinal and pharmaceutical products such as Cascara bark and Western yew bark; wild berries and fruit; herb and vegetable products; native landscaping plants; craft products; and such miscellaneous products as honey and by-products, syrup, and smoke woods.

  5. REVISITING COLONIAL BEHAVIOUR IN FRENCH ALGERIA AND BRITISH INDIA

    Directory of Open Access Journals (Sweden)

    BELKACEM BELMEKKI

    2013-11-01

    Full Text Available The British and the French differed in both the approach and method adopted in governing their overseas subjects during their colonial enterprise in the nineteenth and twentieth centuries. This had a tremendous impact on the psyche of the colonized and was a determinant factor in shaping the nature of the relationship between the colonizers and colonized before and after independence. Therefore, this paper seeks to juxtapose the colonial behaviour of two colonial powers, French and British, in two major colonies, Algeria and India.

  6. Transformations of Byron in the literature of British India

    OpenAIRE

    Ni Fhlathuin, Maire

    2014-01-01

    This essay examines the reception of Byron’s work, and some responses to it, among the poets of the British community in India during the first half of the nineteenth century.\\ud The first section sketches some of the routes by which Byron’s work and accounts of his life were circulated and read in India and demonstrates the impact of his work on the poets of British India. These poets co-opted Byronic texts into their own writings in the form of epigraphs and other citations and allusions, c...

  7. Political Assumptions Underlying Pedagogies of National Education: The Case of Student Teachers Teaching 'British Values' in England

    Science.gov (United States)

    Sant, Edda; Hanley, Chris

    2018-01-01

    Teacher education in England now requires that student teachers follow practices that do not undermine "fundamental British values" where these practices are assessed against a set of ethics and behaviour standards. This paper examines the political assumptions underlying pedagogical interpretations about the education of national…

  8. Validation of the self-reporting questionnaire (SRQ 20) in British Pakistani and White European population in the United Kingdom.

    Science.gov (United States)

    Husain, Nusrat; Chaudhry, Nasim; Rhouma, Abdulhakim; Sumra, Altaf; Tomenson, Barbara; Waheed, Waquas

    2016-01-01

    The incidence of depression is difficult to determine because of low clinical depression detection rates in the primary care setting. This low level of detection is a significantly greater problem in people from ethnic minority communities. The availability of culturally validated screening questionnaires might help to improve the detection and treatment of depression. The aim of the study was to assess the validity of the self-reporting questionnaire SRQ 20, (English and Urdu versions) in white Europeans and British Pakistanis and to determine the optimum cut-off scores for detecting depression. Validation of the English and Urdu versions of the SRQ was conducted with a sample of white Europeans and British Pakistani participants. The semi-structured Schedule for Clinical Assessment in Neuropsychiatry (SCAN) was used as the gold standard diagnostic interview, and receiver operating characteristic analysis was used to evaluate SRQ test performance. The SRQ was completed by 1856 participants out of whom 651 completed the SCAN interview. The SRQ sensitivity, specificity, and predictive values versus SCAN indicated a cut-off score of 7 as optimum for white Europeans and a cut-off score of 6 for British Pakistanis. This study focused on depression alone and did not take into consideration comorbid conditions such as anxiety which might have affected the way respondents answered the questions and contributed to comparatively lower optimum cut-off scores in British Pakistanis. The findings of this validation study provide evidence for high sensitivity and specificity of SRQ amongst both white Europeans and British Pakistanis. The SRQ can be used as a routine screening questionnaire for depression in English and Urdu speaking populations in the UK. Crown Copyright © 2015. Published by Elsevier B.V. All rights reserved.

  9. In vitro comparison of laser induced lithotripsy on artificial stones by means of different laser systems

    Science.gov (United States)

    Sroka, R.; Hecht, V.; Reich, O.; Seitz, M.; Stief, C. G.; Bader, M. J.

    2009-02-01

    Objectives: In this study, clinically available pulsed laser systems emitting either in the infrared (IR) - or visible (VIS) spectral region were compared in a standardized manner with respect to their impact on phantom stones in an underwater laboratory set-up. Methods: There were three pulsed laser systems emitting light either in the IR (λ=2100nm: Ho: YAG-laser) or VIS (λ=532nm/1064nm: FREDDY-laser and 598nm: FLPD-laser) spectral range available for this investigation. After determination of the ablation threshold different fragmentation rates were determined in relation to the fluence (depending on pulse energy and fiber diameter) using artificial stones. Results: The threshold value of the laser pulse energy to induce an ablation of artificial stones induced by the different laser systems showed that even the lowest laser settings induced significant ablation with no regards to the repetition rate and fiber diameter. The VIS-lasers showed higher fragmentation rates than the IR-lasers. Conclusions: VIS-lasers are solely useful for laser induced shockwave lithotripsy, while IR-lasers are also in use for other clinical applications (e.g. coagulation and ablation). Investigations on artificial stone fragmentation are useful to compare clinical laser parameter settings but can partially be transferred to clinically urinary stone fragmentation.

  10. Tax Collection in Northern Ghana during British Colonail Rule (1898 ...

    African Journals Online (AJOL)

    English metallic currency and cowries were used and payment could also be made in kind. Notwithstanding the problems concomitant with direct taxation, the British went ahead to introduce and implement the policy. The conclusion is that the ensuing difficulties this engendered, such as protestations from colonial officials, ...

  11. Popular Music Pedagogy: Band Rehearsals at British Universities

    Science.gov (United States)

    Pulman, Mark

    2014-01-01

    There has been little published pedagogical research on popular music group rehearsing. This study explores the perceptions of tutors and student pop/rock bands about the rehearsals in which they were involved as a part of their university music course. The participants were 10 tutors and 16 bands from eight British tertiary institutions. Analysis…

  12. Nostalgic constructions of nurse education in British national newspapers.

    Science.gov (United States)

    Gillett, Karen

    2014-11-01

    To explore nostalgic constructions of nurse education in British National newspapers. British newspaper discourse relating to the increased academic level of nurse education in the UK is negative, evoking comparisons between negative constructions of nurse education in the present and an idealized nostalgic view of the past. Discussion paper. This study used a critical discourse analysis approach to analyse 11 British Newspaper articles, which exemplify nostalgic constructions of nurse education. This was a purposive sample from a database search (LexisNexis) of British national newspaper articles relating to the increasing academic level of nurse education in the period from 1999-2012. A dominant nostalgic discourse constructs a 'golden era' of nurse education, which idealizes the past, making the present flawed in comparison. Nostalgic constructions create group identities creating contrasting 'caring' nurses educated in the idealized past with those educated now, who are perceived as too educated to care. An inherent characteristic of the nostalgic discourse is the notion that the solution to current problems with nurse education is a return to an idealized version of the past. Another less common newspaper discourse views nostalgia as a problematic construct. Nostalgic discourse with a focus on the past potentially acts as a barrier to creating an effective nurse education system for the 21(st) Century. This focus on an idealized past also has potential consequences in terms of public opinion and legitimization of government policy, which might otherwise be viewed as retrograde. © 2014 John Wiley & Sons Ltd.

  13. The British scorched earth and concentration camp policies in the ...

    African Journals Online (AJOL)

    The continued military resistance of the Republics after the occupation of Bloemfontein and Pretoria and exaggerated by the advent of guerrilla tactics frustrated ... British policy came to revolve around denying Liebenberg use of the abundant food supplies in the Gatsrand by applying a scorched earth policy there and in the ...

  14. Delivery of genetic gain in the interior of British Columbia

    NARCIS (Netherlands)

    Albricht, M.

    2001-01-01

    The forest industry is important for the province of British Columbia, Canada. Timber harvest is regulated on a sustained yield basis. Productivity can be increased by enhanced reforestation, stand tending and tree improvement thus reducing the area needed to provide the required amount of

  15. The 'British-Imperial' Model of administration: Assembling the South ...

    African Journals Online (AJOL)

    With the end of the South African War believed to be in sight, British policy makers in South Africa created the South African Constabulary (SAC) in late 1900 to provide law and order over the new Transvaal and Orange River colonies. By 1900, policy makers no longer simply exported 'English' or 'Irish' models to the ...

  16. The Meanings of the Modals in British and American English.

    Science.gov (United States)

    Coates, Jennifer; Leech, Geoffrey

    1980-01-01

    Some results are reported of an investigation into the meanings of the English modal auxiliary verbs. The corpus consisted of the one million word Brown University corpus of American English and a matching Lancaster University corpus of British English. The three factors operative in the study were: (1) contextual features, that is, co-occurring…

  17. American and British English Compared. Specialised Bibliography A5.

    Science.gov (United States)

    British Council, London (England). English-Teaching Information Centre.

    This bibliography consists of a select list of books and articles pertaining to a comparison of American and British English. Entries include studies of linguistic contrasts, sociolinguistic comparisons, differences in language usage, some diachronic topics, and reference materials such as dictionaries. Entries include both American and European…

  18. Identifying British Army infantry recruit population characteristics using biographical data.

    Science.gov (United States)

    Kiernan, M D; Arthur, A; Repper, J; Mukhuty, S; Fear, N T

    2016-04-01

    The infantry accounts for more than a quarter of the British Army but there is a lack of data about the social and educational background of its recruits. To provide an insight into British Army infantry recruits' personal, social and educational background prior to enlistment. The study sample consisted of infantry recruits who enlisted into the British Army School of Infantry. Each recruit completed a 95-item biographical questionnaire. Descriptive statistics were used to describe the sample in terms of demographic, physical, personal, social and educational attributes. The study sample consisted of 1000 male recruits. Over half of the recruits were consuming alcohol at a hazardous or harmful level prior to enlistment and 60% of recruits had used cannabis prior to joining the Army. Academic attainment was low, with the majority of recruits achieving GCSE grade C and below in most subjects, with 15% not taking any examinations. Over half the recruits had been in trouble with the police and either been suspended or expelled from school. Substance misuse and poor behaviour are highly prevalent among recruits prior to enlistment. Taken alongside existing evidence that some of these problems are commonplace among personnel in regular service, the assumption that the British Army infantry is, in itself, a cause of these behaviours should be questioned. © The Author 2015. Published by Oxford University Press on behalf of the Society of Occupational Medicine. All rights reserved. For Permissions, please email: journals.permissions@oup.com.

  19. John Dewey's Democracy and Education: A British Tribute

    Science.gov (United States)

    Higgins, Steve, Ed.; Coffield, Frank, Ed.

    2016-01-01

    In 1916 John Dewey published "Democracy and Education: An introduction to the philosophy of education". In this book some of today's foremost historians, philosophers, psychologists, and sociologists of education mark the anniversary of Dewey's work by reviewing and reflecting, from a British perspective, on Dewey's contribution to our…

  20. Why Study Abroad? Sorting of Chinese Students across British Universities

    Science.gov (United States)

    Cebolla-Boado, Héctor; Hu, Yang; Soysal, Yasemin Nuhog¯lu

    2018-01-01

    This research contributes to the booming literature on the mobility of international students in higher education. We analyse university-level factors that affect the sorting of Chinese international students across British universities. We produced a unique data-set merging university-level data from the 2014 UK Higher Education Statistics Agency…

  1. Motherhood, Choice and the British Media: A Time to Reflect

    Science.gov (United States)

    Hadfield, L.; Rudoe, N.; Sanderson-Mann, J.

    2007-01-01

    In this paper we ask: How is motherhood being represented in the British media, especially in relation to choice, age and fertility? Do media discourses reflect a redefinition or transformation of "motherhood" in the twenty-first century, and what implications do they have for feminist research into maternal identity and motherhood? As…

  2. British army commisions by purchase | Usher | Scientia Militaria ...

    African Journals Online (AJOL)

    Scientia Militaria: South African Journal of Military Studies. Journal Home · ABOUT THIS JOURNAL · Advanced Search · Current Issue · Archives · Journal Home > Vol 8, No 4 (1978) >. Log in or Register to get access to full text downloads. Username, Password, Remember me, or Register. British army commisions by ...

  3. Labour Trends and Training Needs in British Columbia.

    Science.gov (United States)

    Walker, Susan P.

    In an effort to meet the training needs of the British Columbia (BC) labor force, Open College (OC), in Burnaby, has focused future activities on market-driven, employer-centered training programs utilizing advanced technologies and traditional on-site instructional methods. Designed to ensure that these courses and programs reflect actual labor…

  4. Muslims, Home Education and Risk in British Society

    Science.gov (United States)

    Myers, Martin; Bhopal, Kalwant

    2018-01-01

    The number of families who choose to home educate has significantly increased in the last decade. This article explores the experiences of British Muslims who home educate using data from a larger study exploring the views of a diverse range of families. Drawing on the work of Beck, we discuss how 'risk' is understood in relation to Muslim home…

  5. Political Islam Under British Colonial Administration In Sokoto ...

    African Journals Online (AJOL)

    The movements of such elements were monitored at home and all their links with the international community were trapped and muffled. The main concern of this paper therefore, is to assess the religious policies of the British colonial administration in the Sokoto province in relation to what was termed as the political side of ...

  6. Mission Groups and the New Politics of British Higher Education

    Science.gov (United States)

    Filippakou, Ourania; Tapper, Ted

    2015-01-01

    This article explores the emergence and impact of the mission groups in British higher education. The central argument is that given the development of a mass and diversified model of higher education it was inevitable that the higher education institutions would form pressure groups, while increased marketisation and growing inter-institutional…

  7. Olive Banks and the Collective Biography of British Feminism

    Science.gov (United States)

    Weiner, Gaby

    2008-01-01

    This paper considers Olive Banks' work on charting the history and development of British feminism, and particularly her use of collective biography as a research and analytic tool. It is argued that while this has been seen as the least "fashionable" aspect of her work, it took forward C. Wright Mills' contention for one definition of…

  8. Judging Risk: Key Determinants in British Domestic Violence Cases

    Science.gov (United States)

    Robinson, Amanda L.; Howarth, Emma

    2012-01-01

    Data from the largest study to date of the working practices of British victim support workers (known as Independent Domestic Violence Advisors or IDVAs) are used to provide insight into how "risk judgments" are made in cases of domestic violence. Using data from more than 2,000 victims, this study found a convergence between actuarial…

  9. The Discursive Framing of International Education Programs in British Columbia

    Science.gov (United States)

    Cover, Dwayne

    2016-01-01

    This study examines how international education programs in British Columbia have been discursively framed by government and media sources. Over the past two decades, international education programs have expanded in number and scale in the province, a phenomenon that has been interpreted by some education researchers and media sources as…

  10. Modern British Literature: Sources for Criticism. A Research Guide.

    Science.gov (United States)

    Van Noate, Judith, Comp.

    This handout is a guide to library resources in the J. Murrey Atkins Library at the University of North Carolina-Charlotte, intended to help students find sources of criticism on Modern British Literature (long fiction, short fiction, poetry, and drama). The guide explains important reference sources in the Atkins library reference collection and…

  11. Unchained Interests: American-British-Dutch-Australian Command 1942

    Science.gov (United States)

    2014-05-22

    Ms. O-16 struck a British sea mine , four sea miles off the Malayan coast. As a result the submarine broke in two parts and sank, killing its crew...The Netherlands East Indies possessed an impressive array of base ores, tin, rubber, tin, bauxite , quinine, and oil.21 The exploitative nature of

  12. The Nigerian Marine Department contribution to British colonial ...

    African Journals Online (AJOL)

    The Nigerian Marine Department contribution to British colonial economy. ... Nigerian Journal of Economic History ... authentication and then to textual and contextual analysis The paper finds out that the activities of the Marine Department opened up the littoral routes through the dredging of Nigeria's maritime environment ...

  13. A Pragmatic Study of Exaggeration in British and American Novels

    Science.gov (United States)

    Abbas, Qassim; Al-Tufaili, Dhayef

    2016-01-01

    The main concern of this study is to tackle exaggeration in British and American situations taken from "Mrs. Dalloway" and "The Great Gatsby" novels. From a pragmatic point of view, exaggeration in the field of literature has not been given enough attention. Accordingly, this study is an attempt to develop a model for the…

  14. Separation of British Gas' transportation and storage business

    International Nuclear Information System (INIS)

    McGregor, G.

    1992-12-01

    In making his substantive reference of the transportation and storage business of British Gas to the Monopolies and Mergers Commission, the Director General of Gas Supply identified the following principal effects adverse to the public interest: ''The absence of provision for the establishment of an independent undertaking to operate the pipe-line system and other facilities used by British Gas for the conveyance and storage of gas which would not be subject to conflicting interests in securing (a) transparency of the prices charged, the costs incurred and the operating methods in respect of the conveyance and storage of gas; (b) proper allocation to various parts of the Gas Supply Business of costs incurred and returns by that business; and (c) protection of information relating to the conveyance and storage of gas from which British Gas might obtain unfair commercial advantage, and thereby avoid the restriction or distortion of competition between British Gas and other persons whose business consists of or includes the supply of gas''. This paper considers the structural issues associated with achieving effective competition and looks at how the relationship between the businesses of supply and transportation might be organised in the short and longer term. (Author)

  15. Colors in French, American and British dictionaries | Williams | Lexikos

    African Journals Online (AJOL)

    Colors have senses specific to particular fields such as physics and printing, in addi-tion to senses used in everyday life. This article examines the specialized information found in color definitions in French, American and British dictionaries. We explore whether specialized and non-specialized definitions are lumped or split ...

  16. Ethnic, Gender and Class Intersections in British Women's Leadership Experiences

    Science.gov (United States)

    Showunmi, Victoria; Atewologun, Doyin; Bebbington, Diane

    2016-01-01

    A qualitative study was conducted to examine how gender and ethnicity influenced leadership experiences of a mixed ethnic sample of British women. An intersectional framework was used which took the viewpoint that socio-demographic identities should be considered simultaneously in order to challenge universalist, gender and ethnic neutral…

  17. Farmland Preservation Verdicts - Rezoning Agricultural Land in British Columbia

    NARCIS (Netherlands)

    Stobbe, T.; Eagle, A.J.; Cotteleer, G.; Kooten, van G.C.

    2011-01-01

    The Agricultural Land Reserve (ALR) in British Columbia (BC), Canada, is a provincial zoning scheme designed to protect agricultural land from development. Since 1973, landowners have not been permitted to use ALR land for nonagricultural purposes, prompting some to seek recovery of development

  18. Export Market Orientation Behavior of Universities: The British Scenario

    Science.gov (United States)

    Asaad, Yousra; Melewar, T. C.; Cohen, Geraldine

    2015-01-01

    This study seeks to extend our knowledge of export market orientation (EMO) in the context of British universities with regard to recruitment of international students. Export marketing remains an area of limited focus in the marketization of higher education literature. The study predominantly follows a quantitative research design using survey…

  19. The Relationship between British War Correspondents in the Field ...

    African Journals Online (AJOL)

    In particular, the article looks at the problem and issues relating to the relationship: licensing correspondents, censorship, monitoring journalists' activities, as well as the successful attempt of the intelligence sector to bring the press into their campaign to spread pro-British propaganda. The role of the press in the saga of the ...

  20. Algorithm for Concrete Mix Design Based on British Method | Ezeh ...

    African Journals Online (AJOL)

    The results obtained from the algorithm were compared with those obtained based on the British method and the differences between them were found to be less than 10% in each example. Hence, the algorithm developed in this paper is working with minimum error. It is recommended for use in obtaining good results for ...

  1. Subordination Across Ghanaian And British Newspaper Editorials: A ...

    African Journals Online (AJOL)

    This is a corpus-based empirical study which argues in the light of the register theory that grammatical categories are functional and relate to their situational context of use. Using editorials from Ghanaian and British newspapers, this paper examined the usage dynamics and the functional motivations behind the use of ...

  2. Speech Act Variation in British and American English.

    Science.gov (United States)

    Creese, Angela

    Comparisons of British English and American English in the past have concentrated on similarities and differences at the phonetic, semantic, and syntactic level, while overlooking variation at the socio-cultural level. This paper examines how cultural differences are reflected in five speech acts: requesting, thanking, apologizing, complimenting,…

  3. Memos with Personality: A Model from British Technical Colleges.

    Science.gov (United States)

    Yee, Carole

    1986-01-01

    Notes that while American technical writing texts stress brevity and directness as important characteristics of business correspondence, British texts stress qualities of personality and courtesy, especially in the memo. Shows how to incorporate personality into correspondence, thereby building cooperation among colleagues. (FL)

  4. Dolphins at the British Museum: Zoomorphic Calusa Sinkers

    Directory of Open Access Journals (Sweden)

    Jack Davy

    2015-12-01

    Full Text Available The subject of everyday or “mundane” artistic expression in Native American material culture does not always take into account the idea that aesthetic design can have explicit practical as well as decorative function. This article explores this idea through objects from the Floridian archaeological collections at the British Museum.

  5. The Influence of English on British Sign Language.

    Science.gov (United States)

    Sutton-Spence, Rachel

    1999-01-01

    Details the influence of English on British Sign Language (BSL) at the syntactic, morphological, lexical, idiomatic, and phonological levels. Shows how BSL uses loan translations, fingerspellings, and the use of mouth patterns derived from English language spoken words to include elements from English. (Author/VWL)

  6. The UK and British Gas: Any future for Norwegian gas

    International Nuclear Information System (INIS)

    Jungles, P.

    1996-01-01

    The paper deals with the UK natural gas market and the future for Norwegian gas in the UK. The role of the British Gas in the domestic and European markets is discussed. Topics are: The UK gas supply market; the UK upstream gas market and the Interconnector; the European market, competition and deregulation; the prospects for Norwegian gas

  7. Individual risk. A compilation of recent British data

    International Nuclear Information System (INIS)

    Grist, D.R.

    1978-08-01

    A compilation of data is presented on individual risk obtained from recent British population and mortality statistics. Risk data presented include: risk of death, as a function of age, due to several important natural causes and due to accidents and violence; risk of death as a function of location of accident; and risk of death from various accidental causes. (author)

  8. Cooperation and conflict – the British Army, the Natal government ...

    African Journals Online (AJOL)

    very different. The large number of Afrikaners resident in the Cape Colony acted as a magnet for the Republican forces and as a result, large numbers of Afrikaners took up arms against Britain. From their side, the British authorities acted with a vengeance towards the Cape rebels, executing and imprisoning large numbers.

  9. British colonial administration, development of Islam and lslamic ...

    African Journals Online (AJOL)

    British policy towards religion in colonial Africa was influenced by its intrinsic value to the maintenance of a very strong administration over the continent and achieving the socio-economic objectives Britain set itself at the beginning of its colonization. The Benin Kingdom had been largely untouched by any world religion ...

  10. Index to UKAEA, BNFL, MOD(PE) AWRE and recommended external standards

    International Nuclear Information System (INIS)

    1977-11-01

    The principal part of the document consists of an alphabetical index and numerical index to United Kingdom Atomic Energy Authority, British Nuclear Fuels Limited, and Atomic Weapons Research Establishment standards, engineering and general stores. Also included are: an index to Engineering Equipment Users Association handbooks and documents, members' specifications, codes of practice and handbooks; British Standard Codes of practice (for building, electrical engineering, civil engineering, mechanical engineering); UKAEA Standardisation Committee memoranda and metric guides; and miscellaneous documents. (U.K.)

  11. Laser Pyrometer For Spot Temperature Measurements

    Science.gov (United States)

    Elleman, D. D.; Allen, J. L.; Lee, M. C.

    1988-01-01

    Laser pyrometer makes temperature map by scanning measuring spot across target. Scanning laser pyrometer passively measures radiation emitted by scanned spot on target and calibrated by similar passive measurement on blackbody of known temperature. Laser beam turned on for active measurements of reflectances of target spot and reflectance standard. From measurements, temperature of target spot inferred. Pyrometer useful for non-contact measurement of temperature distributions in processing of materials.

  12. Quantitative assessment of growing hair counts, thickness and colour during and after treatments with a low-fluence, home-device laser: a randomized controlled trial.

    Science.gov (United States)

    Thaysen-Petersen, D; Barbet-Pfeilsticker, M; Beerwerth, F; Nash, J F; Philipsen, P A; Staubach, P; Haedersdal, M

    2015-01-01

    At-home laser and intense pulsed-light hair removal continues to grow in popularity and availability. A relatively limited body of evidence is available on the course of hair growth during and after low-fluence laser usage. To assess growing hair counts, thickness and colour quantitatively during and after cessation of low-fluence laser treatment. Thirty-six women with skin phototypes I-IV and light to dark-brown axillary hairs were included. Entire axillary regions were randomized to zero or eight self-administered weekly treatments with an 810-nm home-use laser at 5·0-6·4 J cm(-2). Standardized clinical photographs were taken before each treatment and up to 3 months after the final treatment for computer-aided quantification of growing hair counts, thickness and colour. Thirty-two women completed the study protocol. During sustained treatment, there was a reduction in growing hair that reached a plateau of up to 59%, while remaining hairs became up to 38% thinner and 5% lighter (P hair' in treated than untreated axilla, and assessed remaining hairs as thinner and lighter (≥ 60%). After treatment cessation, hair growth gradually returned to baseline levels, and 3 months after the final treatment the count and thickness of actively growing hair exceeded pretreatment values by 29% and 7%, respectively (P ≤ 0·04). Sustained usage of low-fluence laser induced a stable reduction of growing hair counts, thickness and colour. The reduction was reversible and hairs regrew beyond baseline values after cessation of usage. Computer-aided image analysis was qualified for quantification of hair counts, thickness and colour after laser epilation. © 2014 British Association of Dermatologists.

  13. Laser Refractography

    CERN Document Server

    Rinkevichyus, B.S; Raskovskaya, I.L

    2010-01-01

    This book describes the basic principles of laser refractography, a flexible new diagnostic tool for measuring optically inhomogeneous media and flows. Laser refractography is based on digital imaging and computer processing of structured laser beam refraction (SLR) in inhomogeneous transparent media. Laser refractograms provide both qualitative and quantitative measurements and can be used for the study of fast and transient processes. In this book, the theoretical basis of refractography is explored in some detail, and experimental setups are described for measurement of transparent media using either 2D (passed radiation) or 3D (scattered radiation) refractograms. Specific examples and applications are discussed, including visualization of the boundary layer near a hot or cold metallic ball in water, and observation of edge effects and microlayers in liquids and gases. As the first book to describe this new and exciting technique, this monograph has broad cross-disciplinary appeal and will be of interest t...

  14. Laser Dentistry

    Science.gov (United States)

    ... a Better Job? Start by Visiting the Dentist Pacifiers Have Negative and Positive Effects Temporomandibular Joint Disorder ... speed up tooth whitening procedures. What are the benefits of using dental lasers? There are several advantages. ...

  15. Laser accelerators

    International Nuclear Information System (INIS)

    Willis, W.J.

    1977-01-01

    A brief discussion is given on the feasibility of using lasers to accelerate particle beams. A rough theory of operation is developed, and numerical results are obtained for an example equivalent to the Fermilab Accelerator

  16. Laser endoscopy.

    Science.gov (United States)

    McElvein, R B

    1981-11-01

    A carbon dioxide laser operating in the invisible infrared range (10.6 mu) generates a beam of energy that is almost completely absorbed by biological tissue with release of intense heat and rapid destruction. A laser attached to a rigid bronchoscope has been used in 18 patients ranging in age from 21 to 62 years to treat a variety of causes of airway obstruction. These include tracheal stenosis and granulation tissue (6 patients), adenoma (1), web (2), and carcinoma (9). The results were good in 15 and poor in 3 patients. However, all patients had an improved airway after laser treatment with the best results occurring in patients with benign, inflammatory disease. The advantages of the laser are a lack of bleeding, minimal edema after treatment, and minimal scar formation. The disadvantages are the expense of the machine, and the need for general anesthesia and direct visualization of the lesion.

  17. Il laser

    CERN Document Server

    Smith, William V

    1974-01-01

    Verso il 1960, il laser era ancora "una soluzione alla ricerca di un problema", ma fin dagli anni immediatamente successivi si è rivelato uno strumento insostituibile per le applicazioni più svariate.

  18. Leg veins with diameter between 1 and 3 mm: flash-lamp-pulsed dye laser, alexandrite laser, invasive Nd:YAG laser treatment, or sclerotherapy?

    Science.gov (United States)

    Smucler, Roman; Mazanek, Jiri; Moidlova, Marta

    2000-05-01

    After unrealistic laser expectations we can see renaissance of 'golden standard' -- sclerotherapy in leg veins treatment. Every laser specialist knows difference between facial and leg veins now. Combination of flash lamp pulsed dye laser /PDL/ and sclerotherapy can be new 'golden standard' but patients are dissatisfied with this procedure which include 'needle medicine.' We presented our way to solve this problem partially-invasive laser treatment with Nd:YAG laser last year. Another trend is introduction of new modifications of near infrared lasers. GentleLASE/Candela, MA/ with dynamic cooling is one of them. We treat veins from 0 - 1 mm in diameter very successfully with PDL/ScleroPlus, Candela, MA/, bigger veins we recommend for minimal invasive or classical surgery. Combination of lasers is we think only one possibility for successful laser treatment. Aim of our work is comparison of sclerotherapy with combinated treatments with PDL, near infrared laser and invasive Nd:YAG laser for veins in diameter between 1 - 2 mm. Results show that combination of lasers offer same results with comparable side effects like sclerotherapy that is cheaper and most common of course. Patients prefer pure laser therapy with combination of pulsed dye laser and alexandrite laser. We think that isn't one best method, decision is one the doctor and patient.

  19. The Great British Music Hall: Its Importance to British Culture and ‘The Trivial’

    Directory of Open Access Journals (Sweden)

    Steven Gerrard

    2013-12-01

    Full Text Available By 1960, Britain’s once-thriving Music Hall industry was virtually dead. Theatres with their faded notions of Empire gave way to Cinema and the threat of Television. Where thousands once linked arms singing popular songs, watch acrobatics, see feats of strength, and listen to risqué jokes, now the echoes of those acts lay as whispers amongst the stalls’ threadbare seats. The Halls flourished in the 19th Century, but had their origins in the taverns of the 16th and 17th Centuries. Minstrels plied their trade egged on by drunken crowds. As time passed, the notoriety of the Music Hall acts and camaraderie produced grew. Entrepreneurial businessman tapped into this commerciality and had purpose-built status symbol theatres to provide a ‘home’ for acts and punters. With names like The Apollo giving gravitas approaching Olympian ideals, so the owners basked in wealth and glory. The Music Hall became the mass populist entertainment for the population. Every town had one, where everyone could be entertained by variety acts showing off the performers’ skills. The acts varied from singers, joke-tellers, comics, acrobats, to dancers. They all aimed to entertain. They enabled audiences to share a symbiotic relationship with one another; became recruitment officers for the Army; inspired War Poets; showed short films; and they and the halls reflected both the ideals and foibles of their era. By using Raymond Williams’ structures of feeling as its cornerstone, the article will give a brief history of the halls, whilst providing analysis into how they grew into mass populist entertainment that represented British culture. Case studies of famous artistes are given, plus an insight into how Music Hall segued into radio, film and television.

  20. Laser bronchoscopy.

    Science.gov (United States)

    Duhamel, D R; Harrell, J H

    2001-11-01

    Because the lung cancer epidemic shows no signs of abating, little doubt exists that the need for interventional bronchoscopists will persist for many years to come. The Nd:YAG laser and the rigid bronchoscope remain crucial weapons in the fight against lung cancer. With more than 4000 published interventions pertaining to it, this combination is ideal for treating central airways obstruction. The safety and efficacy of laser bronchoscopy has been well established, and the reported incidence of complications is impressively low. If complications were to arise, a skilled bronchoscopist can manage them easily by using the beneficial attributes of the rigid bronchoscope. Many complications can be avoided by implementing the established safety procedures and techniques. A solid understanding of laser physics and tissue interactions is a necessity to anyone performing laser surgery. The team approach, relying on communication among the bronchoscopist, anesthesiologist, laser technician, and nurses, leads to a safer and more successful procedure. It is important to remember, however, that this is typically a palliative procedure, and therefore the focus should be on alleviating symptoms and improving quality of life. Unfortunately, because not every patient is a candidate for laser bronchoscopy, there are specific characteristics of endobronchial lesions that make them more or less amenable to resection. Each year a promising new technology is being developed, such as argon plasma coagulation, cryotherapy, and endobronchial electrosurgery. Although it is unclear what role these technologies will have, prospective controlled studies must be done to help clarify this question. The future may lay in combining these various technologies along with Nd:YAG laser bronchoscopy to maximize the therapeutic, palliative, and possibly even curative effect. As the experience of the medical community with Nd:YAG laser bronchoscopy continues to grow and as more health-care professionals

  1. Green lasers

    DEFF Research Database (Denmark)

    Jensen, Ole Bjarlin

    2010-01-01

    Well over a dozen papers at this year's Photonics West meeting in San Francisco boasted improvements in harmonic generation to produce visible laser beams, most of them in the green spectral range......Well over a dozen papers at this year's Photonics West meeting in San Francisco boasted improvements in harmonic generation to produce visible laser beams, most of them in the green spectral range...

  2. Chinese marketplace of lasers and laser materials

    Science.gov (United States)

    Zhu, Huanan

    1992-05-01

    Today I want to introduce the subject of laser materials in China. I will discuss the general background of lasers and laser materials in China. Second, I want to show you some recent rapid development of lasers and laser materials in China. Third, I want to give you an overview of key R&D centers and manufacturers of lasers and laser materials. Fourth, I want to analyze some important export trends from China. Finally, I want to say something about the active international cooperation in the field of lasers and laser materials.

  3. Comparison of photosensitivity in germanium doped silica fibers using 244 nm and 266 nm continuous wave lasers

    DEFF Research Database (Denmark)

    Jensen, Jesper Bo; Varming, Poul; Liu, B.

    2001-01-01

    Diode pumped continuous-wave UV lasers offer an interesting alternative to frequency doubled argon-ion lasers. We report the first photosensitivity comparison using these lasers on deuterium loaded standard telecommunication fibers and unloaded experimental fibers.......Diode pumped continuous-wave UV lasers offer an interesting alternative to frequency doubled argon-ion lasers. We report the first photosensitivity comparison using these lasers on deuterium loaded standard telecommunication fibers and unloaded experimental fibers....

  4. Low-threshold conical microcavity dye lasers

    DEFF Research Database (Denmark)

    Grossmann, Tobias; Schleede, Simone; Hauser, Mario

    2010-01-01

    element simulations confirm that lasing occurs in whispering gallery modes which corresponds well to the measured multimode laser-emission. The effect of dye concentration on lasing threshold and lasing wavelength is investigated and can be explained using a standard dye laser model....

  5. Active polarimeter optical system laser hazard analysis.

    Energy Technology Data Exchange (ETDEWEB)

    Augustoni, Arnold L.

    2005-07-01

    A laser hazard analysis was performed for the SNL Active Polarimeter Optical System based on the ANSI Standard Z136.1-2000, American National Standard for Safe Use of Lasers and the ANSI Standard Z136.6-2000, American National Standard for Safe Use of Lasers Outdoors. The Active Polarimeter Optical System (APOS) uses a pulsed, near-infrared, chromium doped lithium strontium aluminum fluoride (Cr:LiSAF) crystal laser in conjunction with a holographic diffuser and lens to illuminate a scene of interest. The APOS is intended for outdoor operations. The system is mounted on a height adjustable platform (6 feet to 40 feet) and sits atop a tripod that points the beam downward. The beam can be pointed from nadir to as much as 60 degrees off of nadir producing an illuminating spot geometry that can vary from circular (at nadir) to elliptical in shape (off of nadir). The JP Innovations crystal Cr:LiSAF laser parameters are presented in section II. The illuminating laser spot size is variable and can be adjusted by adjusting the separation distance between the lens and the holographic diffuser. The system is adjusted while platform is at the lowest level. The laser spot is adjusted for a particular spot size at a particular distance (elevation) from the laser by adjusting the separation distance (d{sub diffuser}) to predetermined values. The downward pointing angle is also adjusted before the platform is raised to the selected operation elevation.

  6. An investigation of social class inequalities in general cognitive ability in two British birth cohorts.

    Science.gov (United States)

    Connelly, Roxanne; Gayle, Vernon

    2017-12-19

    The 'Flynn effect' describes the substantial and long-standing increase in average cognitive ability test scores, which has been observed in numerous psychological studies. Flynn makes an appeal for researchers to move beyond psychology's standard disciplinary boundaries and to consider sociological contexts, in order to develop a more comprehensive understanding of cognitive inequalities. In this article we respond to this appeal and investigate social class inequalities in general cognitive ability test scores over time. We analyse data from the National Child Development Study (1958) and the British Cohort Study (1970). These two British birth cohorts are suitable nationally representative large-scale data resources for studying inequalities in general cognitive ability. We observe a large parental social class effect, net of parental education and gender in both cohorts. The overall finding is that large social class divisions in cognitive ability can be observed when children are still at primary school, and similar patterns are observed in each cohort. Notably, pupils with fathers at the lower end of the class structure are at a distinct disadvantage. This is a disturbing finding and it is especially important because cognitive ability is known to influence individuals later in the lifecourse. © London School of Economics and Political Science 2017.

  7. ['Gold standard', not 'golden standard'

    NARCIS (Netherlands)

    Claassen, J.A.H.R.

    2005-01-01

    In medical literature, both 'gold standard' and 'golden standard' are employed to describe a reference test used for comparison with a novel method. The term 'gold standard' in its current sense in medical research was coined by Rudd in 1979, in reference to the monetary gold standard. In the same

  8. The world of standards: order or anarchy?

    Science.gov (United States)

    Mason, Andrew

    2011-02-01

    As the development of many new standards for business continuity (BC) is seen across the globe, there is the danger that some of the benefits of developing an industry code or standard are being eroded. The very definition of the term 'standard' - a level of quality or excellence that is accepted as the norm or by which actual attainments are judged - is at risk as the proliferation and diversification of standards in existence and under development today continue to grow almost unchecked. This paper seeks to provide a personal view on the necessity of an international certifiable standard within the BC industry, with the hope that it will influence the debate in this area. In this manner, the paper contributes to the international evolution of BC. The standards related information is based on the author's experience as a member of the British Standards Institute's technical committee that developed BS25999 parts 1 and 2, and his experience in implementing both standards through to certification within his own organisation. References to the Business Continuity Institute are made not as a parochial 'British' group, but in terms of its growing development into a true global professional membership organisation.

  9. Total Quality Management, British Standard accreditation, Investors In People and academic libraries

    Directory of Open Access Journals (Sweden)

    V. Mistry

    1996-01-01

    Full Text Available Organisations, be they public or private, have been touched by a rhetoric which promises a new order of things; quality management systems (QMS like Total Quality Management (TQM and BS EN ISO 9000 (formerly BS 5750 and hereafter referred to as ISO 9000 are imbued with this rhetoric. There has been much in the library and information services (LIS literature on the merits or otherwise of such systems; for quality is accepted generally, or as Chase (1988 declares, 'quality is no longer an option - it is a positive requirement for the 1990s. However, there is much conjecture over the means to this end. With regard to academic LIS, the debate has rubbed shoulders with the, separate, quality debate in higher education over quality assessment. Thus, are initiatives in the academic LIS influenced by their parent organisation? Alternatively, are academic LIS more likely to adopt QMS in the light of the Follett (1993 report, which called for a more integrated view of customer service and quality amidst the rapid change in universities and technology?

  10. American British Canadian, Australian Armies Standardization Program Catalog of War Games

    Science.gov (United States)

    1991-05-21

    Corporation, Rockwell International, U. S. Army Tank Automotive Command, U. S. Natick Research Development and Engineering Center, General Dynamics...hours per day per air and ground ambulance required for MEDEVAC were recorded by type air/ground ambulance for each level (CP, BAS, BSA , etc.). These...the item level. VGCUFS offers a means of assessing the effect a vehicle’s automotive performance, or changes in vehicle parameters such as engine

  11. The Evolution of Capitalism: A Comparison of British and American Literature

    Science.gov (United States)

    Stanwick, Peter A.

    2016-01-01

    This paper discusses the evolution of capitalism in British and American literature. The impact of capitalism on the lives of individuals has been well represented in both American and British literature throughout the centuries. The paper will discuss how seminal British authors such as Thomas More, William Shakespeare, Charles Dickens and George…

  12. Structural Impediments to African Growth? New Evidence from British African Real Wages, 1880-1965

    NARCIS (Netherlands)

    Frankema, E.H.P.; Waijenburg, van M.

    2012-01-01

    British colonial rule has often been praised for its comparatively benign features, such as its support of local educational development. This study argues that the impact of British educational policies and investments on the supply of schooling in British Africa should not be overstated. Until

  13. The origins of formal education in sub-Saharan Africa: was British rule more benign?

    NARCIS (Netherlands)

    Frankema, E.H.P.

    2012-01-01

    British colonial rule has often been praised for its comparatively benign features, such as its support of local educational development. This study argues that the impact of British educational policies and investments on the supply of schooling in British Africa should not be overstated. Until

  14. Attitudes toward buying online as predictors of shopping online for British and American respondents.

    Science.gov (United States)

    Yang, Bijou; Lester, David; James, Simon

    2007-04-01

    This study compared the attitudes toward online shopping of British and American individuals. Using a sample of 327 British and American university students, the British respondents were found to have less favorable attitudes toward online shopping. Attitudes toward online shopping were found to be significant predictors of making online purchases. The implications of these results were discussed and suggestions made for future research.

  15. Public Service or Serving the Public: The Roots of Popularism in British Television.

    Science.gov (United States)

    Crook, Geoffrey

    This paper offers a platform for reappraising British television during the period of 1950-1960 by identifying the inaccuracy and bias of three firmly entrenched assumptions that dominated the history of British television between the publication of the Beveridge Report (1951) and the Pilkington Report (1962): (1) British television in the period…

  16. Ethnicity and British Colonialism; The Rationale for Racially-Based Schools

    Science.gov (United States)

    Whitehead, Clive

    2005-01-01

    This paper examines the rationale for ethnic schooling in former British colonial territories in East Africa and Southeast Asia. Critics, especially of British rule in Malaya and Singapore, have traditionally claimed that ethnic schools were established as part of a British political strategy of "divide et impera". An examination the…

  17. Is There Such a Thing as 'White Ignorance' in British Education?

    Science.gov (United States)

    Bain, Zara

    2018-01-01

    I argue that political philosopher Charles W. Mills' twin concepts of 'the epistemology of ignorance' and 'white ignorance' are useful tools for thinking through racial injustice in the British education system. While anti-racist work in British education has a long history, racism persists in British primary, secondary and tertiary education. For…

  18. Educating for British Values: Kant's Philosophical Roadmap for Cosmopolitan Character Education

    Science.gov (United States)

    Hildebrand, Carl

    2017-01-01

    The UK's 2016 decision to exit the European Union and the discussion surrounding it indicate that public understanding of British identity has important consequences, one way or another. Defining British identity will be an important task in the years to come. The UK government not long ago provided some guidance on the matter of British identity…

  19. Perspectives of Non-British Teachers of the International General Certificate of Secondary Education

    Science.gov (United States)

    Heap, Jason D.

    2014-01-01

    The International General Certificate in Secondary Education (IGCSE) has expanded its consumer base from British-led and British-staffed international schools into schools that may not have faculty familiar with this examination. Non-British teachers must adapt their teaching methods to the culture within the curriculum of the IGCSE. However, a…

  20. American Society for Laser Medicine and Surgery

    Science.gov (United States)

    ... Back Specialty Laser and Energy-Based Device Use Dentistry Dermatology General Surgery Neurosurgery Obstetrics/Gynecology Oncology Ophthalmology ... About ASLMS Code of Ethics Standards of Practice History Governance Back Governance Board of Directors Committees Membership ...

  1. Laser material processing

    CERN Document Server

    Steen, William

    2010-01-01

    This text moves from the basics of laser physics to detailed treatments of all major materials processing techniques for which lasers are now essential. New chapters cover laser physics, drilling, micro- and nanomanufacturing and biomedical laser processing.

  2. Laser-Vorrichtung

    OpenAIRE

    Klein, J.

    1992-01-01

    The laser device has a laser oscillator and a downstream laser amplifier which has an entry zone for the laser beam, which comes from the laser oscillator before it is amplified, and an exit for the amplified laser beam. The laser amplifier also has a convolutional mirror which is opposite the entry zone for the laser beam to be amplified. The laser device is designed so that the amplifying medium in the laser amplifier can be optimally utilized if the laser device has a compact design. To th...

  3. Accounting standards

    NARCIS (Netherlands)

    Stellinga, B.; Mügge, D.

    2014-01-01

    The European and global regulation of accounting standards have witnessed remarkable changes over the past twenty years. In the early 1990s, EU accounting practices were fragmented along national lines and US accounting standards were the de facto global standards. Since 2005, all EU listed

  4. “The Great Terror” in the Contemporary British Novel

    OpenAIRE

    Sidorova, Olga Grigorievna

    2017-01-01

    The mythological image of Russia in British fiction has been historically shaped and recurrently repeated for many centuries. Between the late 20th and the early 21st centuries the image of Russia and the Soviet Union was widely used by the authors of detective, adventure, etc. fiction, but it was also taken up by the leading British writers. The Great Terror of the Stalin epoch was described in a number of fiction and non-fiction books of the early 21st century. The author analyses novels of...

  5. British Columbia marine oil spill response plan. Rev. ed.

    International Nuclear Information System (INIS)

    2002-06-01

    The scope and structure of British Columbia's involvement in response to a major oil spill was defined in this document. Emergency preparedness and response management in the case of an oil spill in British Columbia is the responsibility of the Ministry of Water, Land and Air Protection. The Incident Command Post is a marine oil spill response plan that focuses on a response at the spill site. This marine oil spill response plan was designed to be operated concurrently and in cooperation with the plans in place by other responding jurisdictions and companies. The plan discusses: provincial response strategy; incident notification, escalation and support; response organization; checklist of individual duties; ministry roles and services; and provincial support. 27 refs., 6 figs

  6. Pulmonary Disease due to Mycobacterium malmoense in British Columbia

    Directory of Open Access Journals (Sweden)

    Mohamed S Al-Moamary

    1998-01-01

    Full Text Available Mycobacterium malmoense was first described in northern Europe and the United Kingdom in 1977. Since then, reports have appeared with increasing frequency. Cases have, however, rarely been reported from the United States, and, until now, none have been reported in Canada. This may reflect either true low prevalence of the disease or underdiagnosis by laboratories due to slow growth of the organism. This report describes a case of pulmonary disease caused by M malmoense in a 44-year-old man from British Columbia who was successfully treated with an 18-month course of conventional antituberculous drugs combined with a macrolide. This is the first report of this disease in British Columbia and, to our knowledge, in Canada.

  7. History of British infrared astronomy since the Second World War

    International Nuclear Information System (INIS)

    Jennings, R.E.

    1986-01-01

    In this review, the author describes the development of British infrared astronomy, from its beginnings around 1960 to the present time. The paper outlines the various techniques available and the different wavelength ranges which can be covered by these techniques e.g. balloons, mountain-based telescopes, the AAT in Australia, the 60-inch flux-collector on Tenerife, and the UKIRT telescope on Hawaii, and finally the IRAS satellite. The main groups involved in the British infrared work are UCL, Imperial College, and QMC, together with cooperative programmes with the Netherlands and the USA. The scientific results which have been obtained with these installations include studies of the relict radiation, HII regions, thermal radiation from dust and grains, and a dust shell around the star Vega, to mention but a few, interferometry, photometry and spectroscopy are also discussed, as in the long awaited development of infrared detector arrays. (UK)

  8. The distribution of phosphorus in Romano-British ironwork

    International Nuclear Information System (INIS)

    Kaloyeros, A.

    1991-01-01

    Phosphorus is found to be a common impurity in many of the iron tools and weapons produced during the pre-Roman and Roman Iron Ages of Britain (600 BC - 300 AD). The effects of this impurity on the properties and performance of antiquarian materials is not well understood, however. This paper presents the initial findings of an in-depth study of the distribution, chemistry, and effects of phosphorus in Romano-British ironwork. For this purpose, two Romano-British iron artifacts from the site of Irchester, Northamptonshire, were examined using powerful techniques for archeological materials analysis that include electron microprobe, secondary ion mass spectroscopy (SIMS), transmission electron microscopy (TEM) with energy-dispersive x-ray spectroscopy capabilities (EDXS), and Auger electron spectroscopy (AES)

  9. The Scottish Constitutional Tradition: A Very British Radicalism?

    Directory of Open Access Journals (Sweden)

    Bulmer W. Elliot

    2015-11-01

    Full Text Available This paper discusses recent developments in Scottish nationalist constitutional thought during the period of 2002 to 2014, showing how the Scottish constitutional conversation has diverged from, but continues to be influenced by, the UK-wide constitutional conversation at Westminster. It presents Scottish nationalist constitutional thought as a ‘very British radicalism’, which is characterised by certain constitutional forms and ideas that are radical in a British context (such as popular sovereignty, proportional representation, a written constitution, and a commitment to covenantal socio-economic and environmental provisions while at the same time retaining a persistent ‘Britishness’ in terms of specific institutional proposals and ambivalence towards the principles of constitutional government. Finally, I will discuss possible designs of a future constitutional settlement in Scotland and the United Kingdom. Notably, I will explore how far the Scottish constitutional tradition might impact on the constitutional shape of the United Kingdom.

  10. The criminal careers of chronic offenders in Vancouver, British Columbia

    OpenAIRE

    Giles, Christopher M.H.

    2011-01-01

    Typically, research on “chronic offenders” employs a cohort design with general population or higher risk samples. These designs tend to include a small number of high frequency offenders. This dissertation examines the conviction histories of 152 pre-identified high frequency offenders who are supervised by the Chronic Offenders Program (COP) at the Vancouver Police Department in Vancouver, British Columbia. The lifetime conviction histories and other background variables of the 152 offen...

  11. Breast cancer screening in British Columbia: implications of diagnostic trajectories

    OpenAIRE

    McKay, Rachel

    2008-01-01

    Despite reductions in mortality rates, breast cancer remains the most common cancer and the second most common cause of cancer death in Canadian women. Organized screening programs have contributed to the decrease in breast cancer mortality by allowing for early diagnosis and treatment. The diagnostic phase following an abnormal screen has implications for patient well-being, clinical practice, and resource management in health care. We present data from British Columbia that show that improv...

  12. British Nuclear Fuels plc's effluent plant services building

    International Nuclear Information System (INIS)

    Williams, L.

    1990-01-01

    The new Effluent Plant Services building (EPSB) on the Sellafield Nine Acre Site was built by Costain Engineering Limited for British Nuclear Fuels Limited. The EPSB is dedicated to a new generation of nuclear waste treatment plants, aimed at reducing discharges into the Irish Sea and other environmental impacts by removing actinides from liquid effluents and decontaminating waste solvents. This article describes the design, construction and operation of the plant. (UK)

  13. Remote sensing education at the University of British Columbia

    Science.gov (United States)

    Murtha, P. A.

    1981-01-01

    The development, current status, and organization of the University of British Columbia's interdisciplinary graduate program in remote sensing are described. Specialized programs are tailored to meet student's needs and interest and can range from the theoretical development of technology (sensor development, modelling, and computer analysis) to specialized application of remote sensing in resource analysis such as the determination of vegetation damage, land classification, and land use. The courses and faculty members are listed.

  14. Still Invisible? Women artists in British public collections

    Directory of Open Access Journals (Sweden)

    Patricia de Montfort

    2016-04-01

    Full Text Available Does women's work in British public collections receive curatorial care and scholarly attention? And if or when it does not—when it lingers on the darkest racks of museums stores, collected for a posterity it will never achieve—how has this happened, and why? Or should we be especially concerned about the display of women’s work in public collections, in an age of digital images and online archives?

  15. Registration matters: Explaining youth voter participation in British Columbia

    OpenAIRE

    Poaps, Lyndsay

    2008-01-01

    This study explores why voter turnout is higher among some youth then others in British Columbia and evaluates the ability of demographic, institutional and engagement variables to predict which youth vote. The primary source of data is Elections BC for the 2001 and 2005 election. Supplemental data is acquired through BC Stats, the Canadian Federation of Students, and Check Your Head. Ordinary Least Square regressions are estimated using a dozen explanatory variables. Statistical analysis ind...

  16. 'Race', disadvantage, and policy processes in British planning

    OpenAIRE

    H Thomas; V Krishnarayan

    1994-01-01

    In this paper some of the mechanisms by which black and ethnic minorities can be put at a particular disadvantage within the planning system in Britain (and how these processes can be challenged) are examined. A number of types of policy processes operating in British planning are identified, and, drawing on a range of secondary and primary data, the influence of black and ethnic minorities within these processes are analysed. The paper is concluded with a review of the possibilities for the ...

  17. British Columbia at the crossroads: clean energy or more pollution?

    International Nuclear Information System (INIS)

    Foley, D.; Hertzog, S.; Scott, G.

    2001-11-01

    Some of the challenges facing policy makers as we enter this century are related to regional air pollution and global climate change, where both are a consequence of the combustion of fossil fuels. Data on smog and particulates has been compiled for decades by medical authorities and regulators, thereby documenting the causes, the characteristics and the impact of global warming. Sustainable energy policies are required. A historic compromise was forged in July 2001 on how to implement the 1997 Kyoto Protocol. It is increasingly important for Canada to make energy policy decisions that support the protection of the climate. Key aspects of human activity, such as tourism, forestry, fishing, agriculture, water supplies and flows, infrastructure reliability and costs, and public health factors are at risk in British Columbia. For British Columbia to comply with the Kyoto Protocol, some sources would be able to expand emissions while others would have to reduce them much more to achieve an overall reduction. This document represents an outline and a vision for new opportunities and analyses the challenges facing energy patterns in British Columbia. It was presented to the British Columbia (BC) Energy Policy Task Force. This broad policy review is an ideal opportunity to build energy policies and related economic initiatives leading to new industries, new jobs, and increased energy security. The document is divided in five parts: the BC situation: trends and impacts, BC Hydro and the rush to gas, the BC gas turbine experience: conflict and controversy, gas and the changing dynamics of the BC energy market, and the clean energy path: lessons and policy recommendations. refs., 1 tab., 4 figs

  18. Symptomatic Congenital Cytomegalovirus Infection Is Underdiagnosed in British Columbia.

    Science.gov (United States)

    Sorichetti, Brendan; Goshen, Oran; Pauwels, Julie; Kozak, Frederick K; Tilley, Peter; Krajden, Mel; Gantt, Soren

    2016-02-01

    Records were reviewed from all infants tested for congenital cytomegalovirus infection in British Columbia, Canada from 2006 to June 2014. Fourteen of 701 infants, or approximately 4.2 per 100,000 live births, had a positive test, indicating that >90% of expected symptomatic congenital cytomegalovirus infection cases were not diagnosed using clinician-initiated testing. Copyright © 2016 Elsevier Inc. All rights reserved.

  19. Arts and the Perceived Quality of Life in British Columbia

    Science.gov (United States)

    Michalos, Alex C.; Kahlke, P. Maurine

    2010-01-01

    The aims of this investigation were (1) to measure the impact of arts-related activities on the perceived quality of life of a representative sample of British Columbians aged 18 years or more in the spring of 2007, and (2) to compare the findings of this study with those of a sample of 1,027 adults drawn from five B.C. communities (Comox Valley,…

  20. British television, 1925 – 1936: attitudes and expectations

    OpenAIRE

    Aldridge, Mark Peter Alfred

    2008-01-01

    This thesis assesses attitudes towards, and expectations of, British television between 1925 and 1936. This covers the period from the first public demonstration of an early form of the technology until the official launch of a full high-definition BBC service. The assessment is achieved via an analysis of four key factors. Chapter One covers the first of these, the private individuals working on television, with an emphasis on the publicity-hungry efforts of John Logie Baird. The second chap...

  1. British media attacks on homeopathy: are they justified?

    Science.gov (United States)

    Vithoulkas, George

    2008-04-01

    Homeopathy is being attacked by the British media. These attacks draw support from irresponsible and unjustified claims by certain teachers of homeopathy. Such claims include the use of 'dream' and 'imaginative' methods for provings. For prescribing some such teachers attempt to replace the laborious process of matching symptom picture and remedy with spurious theories based on 'signatures', sensations and other methods. Other irresponsible claims have also been made. These "new ideas" risk destroying the principles, theory, and practice of homeopathy.

  2. 'The Danger of Divided Command': British civil and military disputes ...

    African Journals Online (AJOL)

    M.A. thesis, University of Natal, 1985), pp. 47-51; P.B. l30yden and A.J, Guy, 'The British Arrny in Cape Colony and Natal, 1815 - 1877' in. Boyden et ai, 'Ashes and Blood', pp. 44-7; I.F.W. Beckett, 'Military high command in South Africa,. 1854 - 1914' in Boyden et ai, 'Ashes and Blood', pp. 64-5; Dominy, 'Imperial garrison in ...

  3. Immigration Status and Victimization: Evidence from the British Crime Survey

    OpenAIRE

    Georgios Papadopoulos

    2013-01-01

    This study, using data from the British Crime Survey (BCS), examines the microrelationship between immigration and victimization. We first find that, although immigrants are more likely to suffer property crimes than natives, this is well explained by the fact that immigrants exhibit demographic characteristics associated with higher victimization. Contrary to the above, immigrants are of lower risk of violent victimization. As violence is an expressive type of crime, where interactions betwe...

  4. Factors affecting radon levels in homes in British Columbia, Canada

    International Nuclear Information System (INIS)

    Morley, D.R.; Phillips, B.G.; Van Netten, C.

    1992-01-01

    British Columbia, Canada's most westerly province, has diverse geologic and climatic characteristics, making it a region where predicting radon gas level is quite complex. Data recently obtained for eleven (11) communities confirm an association between background terrestrial gamma radiation measurements and indoor radon levels in homes. Direct links between radon levels and other factors such as home design/construction features and heating/ventilation systems were observed in data for some communities, but not necessarily from the overall data. (author)

  5. British patent 580,504 and Ilford nuclear emulsions

    International Nuclear Information System (INIS)

    Waller, C.

    1988-01-01

    By a new technique disclosed in British Patent 580,504, gelatin with silver halide is precipitated from emulsion by adding a surface active agent. This technique was used from 1945 to produce emulsions with about eight times the normal ratio of silver halide to gelatin. The technique also facilitated the combined use of production and laboratory resources for their reliable manufacture on a fairly large scale. (author)

  6. Mau Mau War: British Counterinsurgency In Colonial Kenya

    Science.gov (United States)

    2016-05-26

    to Kikuyu identity. For example, Kikuyu used oaths to solemnize marriage and contracts. See Branch, 35-36. 32 Charles Townshend, Britain’s Civil Wars...the Christian faith.42 Moderate Kikuyu generally accepted a gradualist approach to reform. Moderate political objectives included avoiding war and...confirm torture was also a common element of life for Kikuyu in both detention camps and the guarded villages. Repression enabled the British to

  7. British Coal Corporation report and accounts 1995/96

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1996-12-31

    The report reviews the year at British Coal and summarises its financial performance for the year ended 30 March 1996. For the first time it records no direct contribution from coal mining in the UK, although it remained responsible at the beginning of the year for employing some 3,500 people in activities ranging from fuel distribution to pensions administration. Achievements included the sale or outsourcing of 10 business and various property sales, bringing the total amount generated from the privatisation of British Coal by May 1996 to over 1.2 billion pounds. The corporation has continued to provide a mine rescue service for which a new company was formed in March 1996. An occupational health service was continued until December 1995. A number of research projects initiated prior to privatisation, sponsored by ECSC, or carried out by the Coal Technology Development Division have continued. The Non-Operational Collieries Group completed the task of managing mine closures. Restoration work on 12 of the 14 former opencast sites has been completed. Responsibility for certain employee benefits and liabilities remains administered by British Coal until the end of 1997.

  8. Did you know? Petroleum industry fast facts: British Columbia

    International Nuclear Information System (INIS)

    1999-10-01

    This is part of a series of brochures published by the Petroleum Communication Foundation, a non-profit society established in 1975. The foundation's objective is to stimulate public awareness and understanding of Canada's petroleum industry and its contribution to the economy of each of the provinces where the industry's presence and impact is substantial. This brochure provides brief, but useful, information about British Columbia, about its area (947,800 sq.km), capital (Victoria), population (4.009,922 in 1998), major industries (forestry, wood and paper, petroleum and mining, tourism, agriculture, fishing, manufacturing), revenue from natural resources ($ 350 million from oil and natural gas in 1998-1999, or about 20 per cent of total provincial government revenues), some facts about the petroleum industry in British Columbia, (production, employment, pipelines, etc.), major exports (wood products, pulp and paper products, machinery and equipment, coal, petroleum products, electricity) and upstream industry expenditures in British Columbia (in excess of $ 1 billion). map, pie-chart, figs

  9. Diagnosis and management of hymenoptera venom allergy: British Society for Allergy and Clinical Immunology (BSACI) guidelines.

    Science.gov (United States)

    Krishna, M T; Ewan, P W; Diwakar, L; Durham, S R; Frew, A J; Leech, S C; Nasser, S M

    2011-09-01

    This guidance for the management of patients with hymenoptera venom allergy has been prepared by the Standards of Care Committee (SOCC) of the British Society for Allergy and Clinical Immunology (BSACI). The guideline is based on evidence as well as on expert opinion and is for use by both adult physicians and pediatricians practising allergy. During the development of these guidelines, all BSACI members were included in the consultation process using a web-based system. Their comments and suggestions were carefully considered by the SOCC. Where evidence was lacking, consensus was reached by the experts on the committee. Included in this guideline are epidemiology, risk factors, clinical features, diagnostic tests, natural history of hymenoptera venom allergy and guidance on undertaking venom immunotherapy (VIT). There are also separate sections on children, elevated baseline tryptase and mastocytosis and mechanisms underlying VIT. Finally, we have made recommendations for potential areas of future research. © 2011 Blackwell Publishing Ltd.

  10. Laser Heterodyning

    CERN Document Server

    Protopopov, Vladimir V

    2009-01-01

    Laser heterodyning is now a widespread optical technique, based on interference of two waves with slightly different frequencies within the sensitive area of a photo-detector. Its unique feature – preserving phase information about optical wave in the electrical signal of the photo-detector – finds numerous applications in various domains of applied optics and optoelectronics: in spectroscopy, polarimetry, radiometry, laser radars and Lidars, microscopy and other areas. The reader may be surprised by a variety of disciplines that this book covers and satisfied by detailed explanation of the phenomena. Very well illustrated, this book will be helpful for researches, postgraduates and students, working in applied optics.

  11. Minimum alcohol prices and outlet densities in British Columbia, Canada: estimated impacts on alcohol-attributable hospital admissions.

    Science.gov (United States)

    Stockwell, Tim; Zhao, Jinhui; Martin, Gina; Macdonald, Scott; Vallance, Kate; Treno, Andrew; Ponicki, William; Tu, Andrew; Buxton, Jane

    2013-11-01

    We investigated whether periodic increases in minimum alcohol prices were associated with reduced alcohol-attributable hospital admissions in British Columbia. The longitudinal panel study (2002-2009) incorporated minimum alcohol prices, density of alcohol outlets, and age- and gender-standardized rates of acute, chronic, and 100% alcohol-attributable admissions. We applied mixed-method regression models to data from 89 geographic areas of British Columbia across 32 time periods, adjusting for spatial and temporal autocorrelation, moving average effects, season, and a range of economic and social variables. A 10% increase in the average minimum price of all alcoholic beverages was associated with an 8.95% decrease in acute alcohol-attributable admissions and a 9.22% reduction in chronic alcohol-attributable admissions 2 years later. A Can$ 0.10 increase in average minimum price would prevent 166 acute admissions in the 1st year and 275 chronic admissions 2 years later. We also estimated significant, though smaller, adverse impacts of increased private liquor store density on hospital admission rates for all types of alcohol-attributable admissions. Significant health benefits were observed when minimum alcohol prices in British Columbia were increased. By contrast, adverse health outcomes were associated with an expansion of private liquor stores.

  12. Second report on British nuclear weapons safety: a response to the Oxburgh report

    International Nuclear Information System (INIS)

    Plesch, D.; Ionno, S.J.; Brady, B.

    1992-01-01

    The Ministry of Defence's (MoD) report on nuclear weapons safety by Professor Sir Ronald Oxburgh fails to examine fundamental issues raised by the US Drell report concerning Trident, Chevaline and WE177. There has been a failure to make proper diagnosis, and where diagnosis has been made to offer appropriate treatment. Oxburgh states that he cannot give a definitive view on whether the Trident warhead meets the crucial ''one-point safety'' standard; that nuclear weapons are inherently hazardous; that they can produce accidental detonations and the release of plutonium; that contractorisation of Aldermaston may erode safety standards; that management must be improved; and that there is no complete record of nuclear accidents. This British American Security Information Council (BASIC) report asserts that the publicly available evidence indicates that all three British nuclear weapons could produce accidental nuclear detonations or the dispersal of plutonium as a result of fire or shock or both. Such accidents could occur, for example, during a road accident with a petrochemical truck, a submarine fire, a submarine loading accident or in an aircraft crash. Oxburgh states that WE177 and Chevaline are one-point safe, although it appears that the MoD have only used tests which Drell regarded as inferior and misleading. He also states that ''a major concern'' is the inability to be able to analyze the safety of the whole Trident system but no solution is offered. The Oxburgh report does not address the problem of fire when discussing the hazards associated with missiles and nuclear weapons. This was the central point of Drell's concerns about Trident. Oxburgh does not examine the problems and alternatives associated with the lack of safety features in the Trident warhead and its proximity to explosive fuel in the missile, nor did he examine the procedures for accident response even though these are of concern to many local authorities. (Author)

  13. Optical media standards for industry

    Science.gov (United States)

    Hallam, Kenneth J.

    1993-01-01

    Optical storage is a new and growing area of technology that can serve to meet some of the mass storage needs of the computer industry. Optical storage is characterized by information being stored and retrieved by means of diode lasers. When most people refer to optical storage, they mean rotating disk media, but there are 1 or 2 products that use lasers to read and write to tape. Optical media also usually means removable media. Because of its removability, there is a recognized need for standardization, both of the media and of the recording method. Industry standards can come about in one or more different ways. An industry supported body can sanction and publish a formal standard. A company may ship enough of a product that it so dominates an application or industry that it acquires 'standard' status without an official sanction. Such de facto standards are almost always copied by other companies with varying degrees of success. A governmental body can issue a rule or law that requires conformance to a standard. The standard may have been created by the government, or adopted from among many proposed by industry. These are often known as de jure standards. Standards are either open or proprietary. If approved by a government or sanctioning body, the standard is open. A de facto standard may be either open or proprietary. Optical media is too new to have de facto standards accepted by the marketplace yet. The proliferation of non-compatible media types in the last 5 years of optical market development have convinced many of the need for recognized media standards.

  14. Digital Field Mapping with the British Geological Survey

    Science.gov (United States)

    Leslie, Graham; Smith, Nichola; Jordan, Colm

    2014-05-01

    The BGS•SIGMA project was initiated in 2001 in response to a major stakeholder review of onshore mapping within the British Geological Survey (BGS). That review proposed a significant change for BGS with the recommendation that digital methods should be implemented for field mapping and data compilation. The BGS•SIGMA project (System for Integrated Geoscience MApping) is an integrated workflow for geoscientific surveying and visualisation using digital methods for geological data visualisation, recording and interpretation, in both 2D and 3D. The project has defined and documented an underpinning framework of best practice for survey and information management, best practice that has then informed the design brief and specification for a toolkit to support this new methodology. The project has now delivered BGS•SIGMA2012. BGS•SIGMA2012 is a integrated toolkit which enables assembly and interrogation/visualisation of existing geological information; capture of, and integration with, new data and geological interpretations; and delivery of 3D digital products and services. From its early days as a system which used PocketGIS run on Husky Fex21 hardware, to the present day system which runs on ruggedized tablet PCs with integrated GPS units, the system has evolved into a complete digital mapping and compilation system. BGS•SIGMA2012 uses a highly customised version of ESRI's ArcGIS 10 and 10.1 with a fully relational Access 2007/2010 geodatabase. BGS•SIGMA2012 is the third external release of our award-winning digital field mapping toolkit. The first free external release of the award-winning digital field mapping toolkit was in 2009, with the third version (BGS-SIGMAmobile2012 v1.01) released on our website (http://www.bgs.ac.uk/research/sigma/home.html) in 2013. The BGS•SIGMAmobile toolkit formed the major part of the first two releases but this new version integrates the BGS•SIGMAdesktop functionality that BGS routinely uses to transform our field

  15. British Logistics Challenges in the American Revolution: How Logistics was a Critical Vulnerability in the British Effort to Ensure Victor

    Science.gov (United States)

    2012-05-01

    against 7 Philadelphia. "Howe’s voyage was a nightmare . It consumed thirty-two days, four times what had been anticipated, and twice as long as...The soldiers endured a steady diet of bread, which is spoiled or full of worms and stinking water with all the impurities mixed in. Twenty-seven...on the loose, the British faced a logistical nightmare . These guerrilla fighters were almost entirely horse soldiers". ii These guerrilla forces

  16. Whither British labour law crisis, what crisis? an historical perspective on the juridification of British industrial relations

    OpenAIRE

    Welch, Roger

    2013-01-01

    This paper is largely historical in that it reflects on the reasons why the British system of industrial relations was transformed from a system rooted in voluntarism or legal abstentionism to one which became increasingly juridified from the 1960s onwards. Juridification can be understood as a combination of judicial intervention in the arena of industrial conflict and the enactment of substantial legislation in areas previously left to employment contracts between employers and their employ...

  17. Laser Dyes

    Indian Academy of Sciences (India)

    Home; Journals; Resonance – Journal of Science Education; Volume 15; Issue 9. Laser Dyes. G S Shankarling K J Jarag. General Article Volume 15 Issue 9 September ... Author Affiliations. G S Shankarling1 K J Jarag1. Dyestuff Technology, Department Institute of Chemical Technology, Matunga Mumbai 400 019, India.

  18. Laser heterodyning

    National Research Council Canada - National Science Library

    Protopopov, V. V

    2009-01-01

    ..., radiometry, laser radars and lidars, microscopy and other areas. Therefore, it is remarkable that such a widely used optical phenomenon has never before been comprehensively reviewed in a single work, as has been done many times for other subjects such as interferometry. I think there are several possible reasons for this. Perhap...

  19. Laser yellowing

    Indian Academy of Sciences (India)

    Author Affiliations. M B Sai Prasad1 Salvatore Siano2. Laser and Plasma Technology Division, Bhabha Atomic Research Centre, Mumbai 400 085, India; CNR-IFAC, Polo Scientifico di Sesto Fiorentino, Via Madonna del Piano, 10, Sesto Fiorentino (FI)-50019, Italy ...

  20. Laser device

    DEFF Research Database (Denmark)

    2013-01-01

    The present invention provides a light source for light circuits on a silicon platform. A vertical laser cavity is formed by a gain region arranged between a first mirror structure and a second mirror structure, both acting as mirrors, by forming a grating region including an active material...

  1. Mirrorless lasers

    Indian Academy of Sciences (India)

    Abstract. Experimental realization of mirrorless lasers in the last decade have resulted in hectic activity in this field, due to their novelty, simplicity and ruggedness and their great potential for application. In this article, I will review the various developments in this field in roughly chronological order, and discuss some possible ...

  2. Remote Sensing Analysis of a Rapidly Eroding Sea Cliff at Point Grey, British Columbia

    Science.gov (United States)

    Westin, A. M.; Francioni, M.; Kremsater, R.; Stead, D.; Clague, J. J.

    2015-12-01

    A range of remote sensing tools can be used to document hazardous and sensitive environments. Presented at this time are the first results of an ongoing study of a rapidly eroding, steep sea cliff in Vancouver, British Columbia. The sea cliff is formed in a 70-m-thick sequence of outwash sands and silts (Quadra Sand) deposited during the early part of the last glaciation, known locally as the Fraser Glaciation. The sea cliff is unstable and retreating due to wave attack, groundwater seepage, and shallow-seated landslides. If no measures are taken to stem wave erosion, the sea cliff will likely retreat faster with rising seas over the remainder of this century. The beach below the cliff is a popular recreational location, thus a hard engineering solution to the erosion problem might be unacceptable to Vancouver residents. We have used conventional photogrammetry, structures from motion, thermal imaging, and terrestrial full waveform laser scanning to provide base-line spatial data for the most rapidly eroding section of the cliff. Here, we present some of our results and discuss the challenges that we faced in characterizing this large soil slope.

  3. Nanowire Lasers

    Directory of Open Access Journals (Sweden)

    Couteau C.

    2015-05-01

    Full Text Available We review principles and trends in the use of semiconductor nanowires as gain media for stimulated emission and lasing. Semiconductor nanowires have recently been widely studied for use in integrated optoelectronic devices, such as light-emitting diodes (LEDs, solar cells, and transistors. Intensive research has also been conducted in the use of nanowires for subwavelength laser systems that take advantage of their quasione- dimensional (1D nature, flexibility in material choice and combination, and intrinsic optoelectronic properties. First, we provide an overview on using quasi-1D nanowire systems to realize subwavelength lasers with efficient, directional, and low-threshold emission. We then describe the state of the art for nanowire lasers in terms of materials, geometry, andwavelength tunability.Next,we present the basics of lasing in semiconductor nanowires, define the key parameters for stimulated emission, and introduce the properties of nanowires. We then review advanced nanowire laser designs from the literature. Finally, we present interesting perspectives for low-threshold nanoscale light sources and optical interconnects. We intend to illustrate the potential of nanolasers inmany applications, such as nanophotonic devices that integrate electronics and photonics for next-generation optoelectronic devices. For instance, these building blocks for nanoscale photonics can be used for data storage and biomedical applications when coupled to on-chip characterization tools. These nanoscale monochromatic laser light sources promise breakthroughs in nanophotonics, as they can operate at room temperature, can potentially be electrically driven, and can yield a better understanding of intrinsic nanomaterial properties and surface-state effects in lowdimensional semiconductor systems.

  4. Communications standards

    CERN Document Server

    Stokes, A V

    1986-01-01

    Communications Standards deals with the standardization of computer communication networks. This book examines the types of local area networks (LANs) that have been developed and looks at some of the relevant protocols in more detail. The work of Project 802 is briefly discussed, along with a protocol which has developed from one of the LAN standards and is now a de facto standard in one particular area, namely the Manufacturing Automation Protocol (MAP). Factors that affect the usage of networks, such as network management and security, are also considered. This book is divided into three se

  5. Union-Active School Librarians and School Library Advocacy: A Modified Case Study of the British Columbia Teacher-Librarians' Association and the British Columbia Teachers' Federation

    Science.gov (United States)

    Ewbank, Ann Dutton

    2015-01-01

    This modified case study examines how the members of the British Columbia Teacher-Librarians' Association (BCTLA), a Provincial Specialist Association (PSA) of the British Columbia Teachers' Federation (BCTF), work together to advocate for strong school library programs headed by a credentialed school librarian. Since 2002, despite nullification…

  6. Perceptions of Quality and Approaches to Studying in Higher Education: A Comparative Study of Chinese and British Postgraduate Students at Six British Business Schools

    Science.gov (United States)

    Sun, Haoda; Richardson, John T. E.

    2012-01-01

    Previous studies of "the Chinese learner" have confounded the effects of culture and context or have used heterogeneous samples of students. In this study, 134 British students and 207 students from mainland China following 1-year postgraduate programmes at six British business schools completed the Course Experience Questionnaire (CEQ)…

  7. Laser antisepsis of Phorphyromonas gingivalis in vitro with dental lasers

    Science.gov (United States)

    Harris, David M.

    2004-05-01

    It has been shown that both pulsed Nd:YAG (1064nm) and continuous diode (810nm) dental lasers kill pathogenic bacteria (laser antisepsis), but a quantitative method for determining clinical dosimetry does not exist. The purpose of this study was to develop a method to quantify the efficacy of ablation of Porphyromonas gingivalis (Pg) in vitro for two different lasers. The ablation thresholds for the two lasers were compared in the following manner. The energy density was measured as a function of distance from the output of the fiber-optic delivery system. Pg cultures were grown on blood agar plates under standard anaerobic conditions. Blood agar provides an approximation of gingival tissue for the wavelengths tested in having hemoglobin as a primary absorber. Single pulses (Nd:YAG: 100- Œs diode: 100-msec) of laser energy were delivered to Pg colonies and the energy density was increased until the appearance of a small plume was observed coincident with a laser pulse. The energy density at this point defines the ablation threshold. Ablation thresholds to a single pulse were determined for both Pg and for blood agar alone. The large difference in ablation thresholds between the pigmented pathogen and the host matrix for pulsed-Nd:YAG represented a significant therapeutic ratio and Pg was ablated without visible effect on the blood agar. Near threshold the 810-nm diode laser destroyed both the pathogen and the gel. Clinically, the pulsed Nd:YAG may selectively destroy pigmented pathogens leaving the surrounding tissue intact. The 810-nm diode laser may not demonstrate this selectivity due to its longer pulse length and greater absorption by hemoglobin.

  8. Excimer Laser Technology

    CERN Document Server

    Basting, Dirk

    2005-01-01

    This comprehensive survey on Excimer Lasers investigates the current range of the technology, applications and devices of this commonly used laser source, as well as the future of new technologies, such as F2 laser technology. Additional chapters on optics, devices and laser systems complete this compact handbook. A must read for laser technology students, process application researchers, engineers or anyone interested in excimer laser technology. An effective and understandable introduction to the current and future status of excimer laser technology.

  9. Effect of standards on new equipment design by new international standards and industry restraints

    Science.gov (United States)

    Endelman, Lincoln L.

    1991-01-01

    The use of international standards to further trade is one of the objectives of creating a standard. By having form fit and function compatible the free interchange of manufactured goods can be handled without hindrance. Unfortunately by setting up standards that are peculiar to a particular country or district it is possible to exclude competition from a group of manufacturers. A major effort is now underway to develop international laser standards. In the May I 990 issue of Laser Focus World Donald R. Johnson the director of industrial technology services for the National Institute of Standards and Technology (NIST formerly the National Bureau of Standards) is quoted as follows: " The common means of protectionism has been through certification for the market place. " The article goes on to say " Mr. Johnson expects this tradition to continue and that the new European Community (EC) will demand not just safety standards but performance standards as well. . . . the American laser industry must move very quickly on this issue or risk being left behind the European standards bandwagon. " The article continues laser companies must get involved in the actual standards negotiating process if they are to have a say in future policy. A single set of standards would reduce the need to repeatedly recalibrate products for different national markets. " As a member of ISO TC-72 SC9 I am

  10. Achieving Standardization

    DEFF Research Database (Denmark)

    Henningsson, Stefan

    2016-01-01

    competitive, national customs and regional economic organizations are seeking to establish a standardized solution for digital reporting of customs data. However, standardization has proven hard to achieve in the socio-technical e-Customs solution. In this chapter, the authors identify and describe what has......International e-Customs is going through a standardization process. Driven by the need to increase control in the trade process to address security challenges stemming from threats of terrorists, diseases, and counterfeit products, and to lower the administrative burdens on traders to stay...... to be harmonized in order for a global company to perceive e-Customs as standardized. In doing so, they contribute an explanation of the challenges associated with using a standardization mechanism for harmonizing socio-technical information systems....

  11. Achieving Standardization

    DEFF Research Database (Denmark)

    Henningsson, Stefan

    2014-01-01

    competitive, national customs and regional economic organizations are seeking to establish a standardized solution for digital reporting of customs data. However, standardization has proven hard to achieve in the socio-technical e-Customs solution. In this chapter, the authors identify and describe what has......International e-Customs is going through a standardization process. Driven by the need to increase control in the trade process to address security challenges stemming from threats of terrorists, diseases, and counterfeit products, and to lower the administrative burdens on traders to stay...... to be harmonized in order for a global company to perceive e-Customs as standardized. In doing so, they contribute an explanation of the challenges associated with using a standardization mechanism for harmonizing socio-technical information systems....

  12. Training Standardization

    International Nuclear Information System (INIS)

    Agnihotri, Newal

    2003-01-01

    The article describes the benefits of and required process and recommendations for implementing the standardization of training in the nuclear power industry in the United States and abroad. Current Information and Communication Technologies (ICT) enable training standardization in the nuclear power industry. The delivery of training through the Internet, Intranet and video over IP will facilitate this standardization and bring multiple benefits to the nuclear power industry worldwide. As the amount of available qualified and experienced professionals decreases because of retirements and fewer nuclear engineering institutions, standardized training will help increase the number of available professionals in the industry. Technology will make it possible to use the experience of retired professionals who may be interested in working part-time from a remote location. Well-planned standardized training will prevent a fragmented approach among utilities, and it will save the industry considerable resources in the long run. It will also ensure cost-effective and safe nuclear power plant operation

  13. Southwest British Columbia natural gas supply and deliverability: Discussion paper

    International Nuclear Information System (INIS)

    1994-02-01

    A review is presented of energy in British Columbia, the role of natural gas, and options available to enhance gas supply security in the province's most densely populated area, the southwest. British Columbia has abundant natural gas supplies, and production exceeds domestic demand. In 1992, natural gas supplied ca 25% of total provincial end-use energy requirements, but this share is expected to rise to 30% by 2015. Although some say that the province's natural gas production and transmission system should serve only domestic needs, this would have significant negative impacts. Domestic gas supply policy allows gas consumers to contract their own supplies, but contract security is required. Provincial guidelines allow demand-side programs to compete with supply sources to ensure that the resource profile is achieved at least cost. In the southwest, natural gas demand is projected to increase from 189 PJ in 1991 to 262 PJ by 2005. Most gas supplied to this region comes from northeast British Columbia through pipelines that are generally fully contracted. Short-term deliverability can be a problem, especially in peak winter demand periods. The gas industry's contingency plans for shortages are outlined and alternatives to enhance deliverability to the southwest are assessed, including storage, expansion of the pipeline system, supply curtailment, and peaking supply contracts. Aspects of provincial natural gas planning are discussed, including security of supply and deliverability, economic and environmental impacts, consumer costs, safety, and the public interest. A least-cost option for enhancing deliverability (underground storage and an additional liquefied natural gas plant) is estimated to cost consumers $3.69/GJ over 20 years. 9 figs., 1 tab

  14. The impact of the British model on economic growth

    Directory of Open Access Journals (Sweden)

    Simon György Jr.

    2007-01-01

    Full Text Available The paper is searching for an answer to the question how the British model affected economic development in its mother country, the United Kingdom. The statistical analysis, models of mathematical economics and econometric investigation make it probable to conclude that there was a substantial difference in success between the Thatcherite and the Blairite economic policies; the latter proved more effective. It is particularly remarkable that the Blairite model, connecting privatization with a successful employment policy, reduced unemployment and social sensitivity, has not only speeded up economic growth but also improved economic equilibrium, curtailing, among others, the budget deficit.

  15. Socioeconomic inequality in health in the British Household Panel

    DEFF Research Database (Denmark)

    Foverskov, Else; Holm, Anders

    2016-01-01

    of the British Household Panel Survey. Household income and location on the Cambridge Scale is included as measures of different dimensions of SEP and health is measured as a latent factor score. The causal hypotheses are tested using a time-based Granger approach by estimating dynamic fixed effects panel...... showed no proof of the social causation hypothesis over a one to five year period and limited support for the health selection hypothesis was seen only for men in relation to HH income. These findings were robust in multiple sensitivity analysis. We conclude that the indirect selection hypothesis may...

  16. Socioeconomic inequality in health in the British household panel

    DEFF Research Database (Denmark)

    Foverskov, Else; Holm, Anders

    2016-01-01

    of the British Household Panel Survey. Household income and location on the Cambridge Scale is included as measures of different dimensions of SEP and health is measured as a latent factor score. The causal hypotheses are tested using a time-based Granger approach by estimating dynamic fixed effects panel...... showed no proof of the social causation hypothesis over a one to five year period and limited support for the health selection hypothesis was seen only for men in relation to HH income. These findings were robust in multiple sensitivity analysis. We conclude that the indirect selection hypothesis may...

  17. Sizewell B - analysis of British application of US PWR technology

    International Nuclear Information System (INIS)

    1983-05-01

    This report provides information on the staff's evaluation of major design differences and issues developed by the British in their application (Sizewell B) of US PWR technology. One design change, the addition of steam-driven charging pumps, was assessed to have a relatively high value compared to the other changes. However, the assessment is based on a number of assumptions for which inadequate data exist to make an unqualified judgment. Other changes to the US design (as typified by the SNUPPS design) were found to have relatively low or moderate safety benefits for US application

  18. Privatization and culture change: British Nuclear Fuels case study

    International Nuclear Information System (INIS)

    Salama, A.

    1997-01-01

    This paper describes and explains the process of organizational change experienced by British Nuclear Fuels (BNFL) during the late 1980s. BNFL went through a major transformation in management values and practices to survive in the new business environment characterized by government deregulation and fiercer global market competition. The paper describes both the historical and the prevailing management behaviour as well as the strategy utilized by BNFL's top management in their change process. The key factor in the process of change seems to lie in top management commitment and a fully integrated set of actions involving different sub-systems of the organization. (author)

  19. Strategic Factors Influencing the British and American Empires

    Science.gov (United States)

    2003-04-07

    sources - half from Britain, half from India and was not composed of conscripts. Most of this force was needed for the protection of Britain’s overseas...colonies, since they had little responsibility for their own defenses, with fully a third stationed in India (paid for by Indian, not British, taxes15...over 50 percent of the world’s iron, coal, and lignite and consuming 50 percent of the world’s cotton.24 Much of this success was fueled by the

  20. Robinson Crusoe: the fate of the British Ulysses.

    Science.gov (United States)

    Pimentel, Juan

    2010-03-01

    If travel has been one of the leitmotifs of Western imagination, Robinson Crusoe has certainly been one of its foremost incarnations. This British Ulysses foretold the global village, but also its problems. He predicted the end of distance, but also the triumph of isolation and anaesthetized loneliness. This paper provides an overview of the connections between Defoe's narrative and the new science and explores two versions of the story by two contemporary writers, Julio Cortazar and John Maxwell Coetzee. 2009 Elsevier Ltd. All rights reserved.

  1. "Signs of the times": Medicine and nationhood in British India.

    Science.gov (United States)

    Chakrabarti, Pratik

    2009-01-01

    Medical practice and research in colonial India historically had been an imperial preserve, dominated by the elite members of the Indian Medical Service. This was contested from the 1900s on by the emerging Indian nationalism. This essay studies debates about the establishment of a medical research institution and how actors imposed the political identities of nationalism on British colonial practices of medical science. At the same time, Indian nationalism was also drawing from other emerging ideas around health and social welfare. The Indian nationalists and doctors sought to build the identities of the new nation and its medicine around their own ideas of its geography, people, and welfare.

  2. British business in Brazil: maturity and demise (1850-1950

    Directory of Open Access Journals (Sweden)

    Marcelo de Paiva Abreu

    2000-12-01

    Full Text Available This paper analyses the long-term trends of ''British business'' in Brazil since 1850. It covers investment and other manifestations of the British presence such as those related to trade as well as financial intermediation. Primary interest is in British involvement in Brazilian private sector activities, whether by direct investment or by the flotation of sterling securities for firms operating in Brazil. The article also considers the role of London as a financial market where Brazilian public loans were floated, the relevance of Britain as a market for Brazilian commodities and as a supplier to Brazil, and British intermediation in Brazilian trade with third countries. It is divided in chronological sections: imperial years (1850-1889; stagnation and boom (1889-1914; first signs of decline (1914-1930, and the divestment period (1930 to the mid-1950's. The final section presents the conclusions and mentions post-1950 trends.Este artigo considera as tendências de longo prazo das relações econômicas e financeiras britânicas com o Brasil desde 1850. Abrange investimentos e outas manifestações da presença britânica no Brasil, tais como as relacionadas a comércio e intermediação financeira. O interesse fundamental é no envolvimento britânico com as atividades do setor privado no Brasil, seja através de investimento direto, seja na intermediação financeira em benefício de firmas privadas que operavam no Brasil. O artigo também menciona o papel de Londres como centro financeiro no qual eram lançados empréstimos públicos brasileiros, a relevância do Reino Unido como mercado para as exportações brasileiras e como supridor de importações para o Brasil, e a intermediação britânica no comércio brasileiro com terceiros países. O artigo é dividido em seções cronológicas: os anos imperiais (1850-1889; estagnação e boom (1889-1914; primeiros sinais de declínio (1914-1930; os anos de redução de investimentos (1930

  3. Status report : British Columbia`s economic plan

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-01-01

    A sector-by-sector update of actions taken under British Columbia`s three-year economic plan is outlined and the progress to date reviewed. The three year plan includes the support for industry growth in partnership with the private sector, making Vancouver a major international conference destination, and developing Vancouver International Airport into a major gateway to the Pacific. The plan also includes the promotion of adventure tourism in major international markets, and promoting aboriginal tourism and culture. The government also plans to stimulate the economy by providing $973 million in tax reductions for BC families and business. 1 tab.

  4. The EPR certified by the British regulatory authority

    International Nuclear Information System (INIS)

    Anon.

    2012-01-01

    The EPR is the only 3. generation reactor to get the certification in the United-Kingdom. EDF Energy plans to build 2 EPR on the Hinkley Point site. In order to anticipate the construction of the 2 reactors, AREVA has recently announced to have signed agreements with 25 companies based in the United-Kingdom for the supply of components and services. The business could reach 496 million euros for British industry. AREVA has announced a least cost on the nuclear island for the future series-produced EPR: -15%. AREVA maintains its objective of 10 EPR on order by the end of 2016. (A.C.)

  5. Guidelines for the diagnosis, prevention and management of implantable cardiac electronic device infection. Report of a joint Working Party project on behalf of the British Society for Antimicrobial Chemotherapy (BSAC, host organization), British Heart Rhythm Society (BHRS), British Cardiovascular Society (BCS), British Heart Valve Society (BHVS) and British Society for Echocardiography (BSE).

    Science.gov (United States)

    Sandoe, Jonathan A T; Barlow, Gavin; Chambers, John B; Gammage, Michael; Guleri, Achyut; Howard, Philip; Olson, Ewan; Perry, John D; Prendergast, Bernard D; Spry, Michael J; Steeds, Richard P; Tayebjee, Muzahir H; Watkin, Richard

    2015-02-01

    Infections related to implantable cardiac electronic devices (ICEDs), including pacemakers, implantable cardiac defibrillators and cardiac resynchronization therapy devices, are increasing in incidence in the USA and are likely to increase in the UK, because more devices are being implanted. These devices have both intravascular and extravascular components and infection can involve the generator, device leads and native cardiac structures or various combinations. ICED infections can be life-threatening, particularly when associated with endocardial infection, and all-cause mortality of up to 35% has been reported. Like infective endocarditis, ICED infections can be difficult to diagnose and manage. This guideline aims to (i) improve the quality of care provided to patients with ICEDs, (ii) provide an educational resource for all relevant healthcare professionals, (iii) encourage a multidisciplinary approach to ICED infection management, (iv) promote a standardized approach to the diagnosis, management, surveillance and prevention of ICED infection through pragmatic evidence-rated recommendations, and (v) advise on future research projects/audit. The guideline is intended to assist in the clinical care of patients with suspected or confirmed ICED infection in the UK, to inform local infection prevention and treatment policies and guidelines and to be used in the development of educational and training material by the relevant professional societies. The questions covered by the guideline are presented at the beginning of each section. © The Author 2014. Published by Oxford University Press on behalf of the British Society for Antimicrobial Chemotherapy. All rights reserved. For Permissions, please e-mail: journals.permissions@oup.com.

  6. Laser Accelerator

    Science.gov (United States)

    2014-09-01

    Photocathode emitters eject electrons from the cathode by the photoelectric effect. A drive laser source shines light energy onto a metal or...synchronized so that the electrons ejected via the photoelectric effect are properly accelerated. 15 Figure 2.4: Cross-section of a triple spoke cavity, from...2.3: Available Pulsed Magnets at PFF LANL. SP = Short Pulse. MP = Mid-Pulse, after [19] Cell No. Magnet Pulse Duration (ms) Bore (mm) 1 50 T SP 25 24

  7. Flammability properties of British heathland and moorland vegetation: models for predicting fire ignition.

    Science.gov (United States)

    Santana, Victor M; Marrs, Rob H

    2014-06-15

    Temperate ecosystems, for example British heathlands and moorlands, are predicted to experience an increase in severe summer drought and wildfire frequency over the next few decades. The development of fire ignition probability models is fundamental for developing fire-danger rating systems and predicting wildfire outbreaks. This work assessed the flammability properties of the fuel complex of British moorlands as a function of their moisture content under laboratory conditions. Specifically, we aimed to develop: (1) models of the probability of fire ignition in peat/litter fuel-beds (litter of four different plant species, Sphagnum moss and peat); (2) flammability properties in terms of ignitability, sustainability, consumability and combustibility of these peat/litter fuel-beds; (3) the probability of ignition in a canopy-layer of Calluna vulgaris (the most dominant heath/moor species in Britain) as a function of its dead-fuel proportion and moisture content; (4) the efficacy of standardized smouldering and flaming ignition sources in developing sustained ignitions. For this, a series of laboratory experiments simulating the fuel structure of moor vegetation were performed. The flammability properties in peat/litter fuel-beds were influenced strongly by the fuel moisture content. There were small differences in moisture thresholds for experiencing initial flaming ignitions (35-59%), however, the threshold for sustained ignitions (i.e. spreading a fixed distance from the ignition point) varied across a much wider range (19-55%). Litter/peat fuel-beds were classified into three groups: fuel-beds with high ignitability and combustibility, fuel-beds with high levels of sustainability, and fuel-beds with low levels in all flammability descriptors. The probability of ignition in the upper Calluna-vegetation layer was influenced by both the proportion of dead fuels and their moisture content, ranging from 19% to 35% of moisture as dead fuel proportion increased

  8. Project LASER

    Science.gov (United States)

    1990-01-01

    NASA formally launched Project LASER (Learning About Science, Engineering and Research) in March 1990, a program designed to help teachers improve science and mathematics education and to provide 'hands on' experiences. It featured the first LASER Mobile Teacher Resource Center (MTRC), is designed to reach educators all over the nation. NASA hopes to operate several MTRCs with funds provided by private industry. The mobile unit is a 22-ton tractor-trailer stocked with NASA educational publications and outfitted with six work stations. Each work station, which can accommodate two teachers at a time, has a computer providing access to NASA Spacelink. Each also has video recorders and photocopy/photographic equipment for the teacher's use. MTRC is only one of the five major elements within LASER. The others are: a Space Technology Course, to promote integration of space science studies with traditional courses; the Volunteer Databank, in which NASA employees are encouraged to volunteer as tutors, instructors, etc; Mobile Discovery Laboratories that will carry simple laboratory equipment and computers to provide hands-on activities for students and demonstrations of classroom activities for teachers; and the Public Library Science Program which will present library based science and math programs.

  9. Osteoarthritis incidence and trends in administrative health records from British Columbia, Canada.

    Science.gov (United States)

    Rahman, M Mushfiqur; Cibere, Jolanda; Goldsmith, Charlie H; Anis, Aslam H; Kopec, Jacek A

    2014-06-01

    To calculate the incidence rates of osteoarthritis (OA) and to describe the changes in incidence using 18 years of administrative health records. We analyzed visits to health professionals and hospital admission records in a random sample (n = 640,000) from British Columbia, Canada, from 1991/1992 through 2008/2009. OA was defined in 2 ways: (1) at least 1 physician diagnosis or 1 hospital admission; and (2) at least 2 physician diagnoses in 2 years or 1 hospital admission. Crude and age-standardized rates were calculated, and the annual relative changes were estimated from the Poisson regression models. In 2008/2009, the overall crude incidence rate (95% CI) of OA using definition 1 was 14.6 (14.0-14.8); [12.5 (12.0-13.0) among men and 16.3 (15.8-16.8) among women] per 1000 person-years. The rates were lower by about 44% under definition 2. For the period 2000/2001-2008/2009, crude incidence rates based on definition 1 varied from 11.8 to 14.2 per 1000 person-years for men, and from 15.7 to 18.5 for women. Annually, on average, crude rates rose by about 2.5-3.3% for both men and women. The age-adjusted rates increased by 0.6-0.8% among men and showed no trend among women. Our study generated updated incidence rates of administrative OA for the Province of British Columbia. Physician-diagnosed overall incidence rates of OA varied with the case definitions used; however, trends were similar in both case definitions. Age-adjusted rates among men increased slightly during the period 2000/2001-2008/2009. These findings have implications for projecting future prevalence and costs of OA.

  10. Er,CR:YSGG lasers induce fewer dysplastic-like epithelial artefacts than CO2 lasers: an in vivo experimental study on oral mucosa.

    Science.gov (United States)

    González-Mosquera, A; Seoane, J; García-Caballero, L; López-Jornet, P; García-Caballero, T; Varela-Centelles, P

    2012-09-01

    Our aim was to assess wounds made by lasers (CO(2) and Er,Cr:YSGG) for their epithelial architectural changes and width of damage. We allocated 60 Sprague-Dawley(®) rats into groups: glossectomy by CO(2) laser at 3 different wattages (n=10 in each); glossectomy by Er,Cr:YSGG laser at two different emissions (n=10 in each), and a control group (n=10). Histological examination assessed both prevalence and site of thermal artefacts for each group. Both lasers (CO(2) and Er,Cr:YSGG) caused the same type of cytological artefacts. The 3W Er,Cr:YSGG laser produced the fewest cytological artefacts/specimen, and was significantly different from the other experimental groups: 3W CO(2) laser (95% CI=0.8 to 1.0); the 6W CO(2) laser (95% CI=0.1 to 2.0) and the 10W CO(2) laser (95% CI=1.1 to 3.0). CO(2) lasers (3-10W) generate epithelial damage that can simulate dysplastic changes with cytological atypia that affects mainly the basal and suprabasal layers. Irradiation with Er,CR:YSGG laser (2-4W) produces significantly fewer cellular artefacts and less epithelial damage, which may be potentially useful for biopsy of oral mucosa. Copyright © 2011 The British Association of Oral and Maxillofacial Surgeons. Published by Elsevier Ltd. All rights reserved.

  11. Supercontinuum white light lasers for flow cytometry

    Science.gov (United States)

    Telford, William G.; Subach, Fedor V.; Verkhusha, Vladislav V.

    2009-01-01

    Excitation of fluorescent probes for flow cytometry has traditionally been limited to a few discrete laser lines, an inherent limitation in our ability to excite the vast array of fluorescent probes available for cellular analysis. In this report, we have used a supercontinuum (SC) white light laser as an excitation source for flow cytometry. By selectively filtering the wavelength of interest, almost any laser wavelength in the visible spectrum can be separated and used for flow cytometric analysis. The white light lasers used in this study were integrated into a commercial flow cytometry platform, and a series of high-transmission bandpass filters used to select wavelength ranges from the blue (~480 nm) to the long red (>700 nm). Cells labeled with a variety of fluorescent probes or expressing fluorescent proteins were then analyzed, in comparison with traditional lasers emitting at wavelengths similar to the filtered SC source. Based on a standard sensitivity metric, the white light laser bandwidths produced similar excitation levels to traditional lasers for a wide variety of fluorescent probes and expressible proteins. Sensitivity assessment using fluorescent bead arrays confirmed that the SC laser and traditional sources resulted in similar levels of detection sensitivity. Supercontinuum white light laser sources therefore have the potential to remove a significant barrier in flow cytometric analysis, namely the limitation of excitation wavelengths. Almost any visible wavelength range can be made available for excitation, allowing access to virtually any fluorescent probe, and permitting “fine-tuning” of excitation wavelength to particular probes. PMID:19072836

  12. Protest movements against nuclear energy and the British state

    International Nuclear Information System (INIS)

    Ruedig, W.

    1990-01-01

    Two main aspects which explain the comparative weakness of the British anti-nuclear movement are identified. First, debate over nuclear energy has been conducted within a public enquiry framework and second there has been a lack of stimuli for opposition to emerge and develop. The main part of this paper analyses the political conflict over nuclear energy from 1974 to 1989 divided into four phases. Phase one (1974-1978) saw the emergence of nuclear power as a political issue and the early encounters between pro and anti-nuclear forces at the Windscale Inquiry in 1977. Phase two (1978-1981) saw the rise of a more radical anti-nuclear lobby as a national movement. Phase three (1982-1987) was characterized by the Sizewell-B inquiry. Phase four saw a major crisis in the British nuclear industry not from anti-nuclear protest but from the Governments privatisation policy. The paper concludes with a discussion of the value of the policy style concept for an explanation of the role of the state in the nuclear conflict. (UK)

  13. Hydrocarbon and by-product reserves in British Columbia, 2000

    International Nuclear Information System (INIS)

    2001-01-01

    Statistical data on oil, gas and by-product reserves in British Columbia as of 31 December 2000, as estimated by the Oil and Gas Commission was presented along with a summary of year-end remaining established reserves, estimates of the reserves of oil, gas and by-products, and detailed reserve and pool parameters. British Columbia set a record in 2000 with 753 wells drilled, of which 59 were classed as oil. Most of the oil drilling took place in the Hay River area. 449 gas wells were drilled in 2000, mostly in the Fort St. John area. An additional 120 wells were cased. Raw gas reserves in 2000 increased to 294.8 10 9 m 3 , up slightly from the previous year. Remaining oil reserves at December 31, 2000 were 27,357 10 3 m 3 , an increase of about 4 per cent over 1999. This report also included a historical review of oil and raw gas reserves by geological period and unconnected gas reserves by plant area. Established hydrocarbon reserves, summaries and a project/unit cross-reference listing was included. Oil pools under waterflood or gas injection were also highlighted. Four appendices were also included, one each for reserve and pool parameter listings for crude oil reserves, gas reserves, raw gas analysis, and remaining hydrocarbon products. tabs

  14. The British object relations theorists: Balint, Winnicott, Fairbairn, Guntrip.

    Science.gov (United States)

    Sutherland, J D

    1980-01-01

    What I believe to be the essential contribution of this group of analysts may be summarized as follows. The role of object relations has always been a prominent theme in analytic thought and has become much more so in recent years. Instead of grafting the implications of relations onto a theory that started from a different standpoint, what the British group has done is to show that the development of the person has to be conceived as the progressive differentiation of a structure from a unitary matrix that itself interacts at a holistic personal level from the start. While Balint noted clinical data that required this step, he did not put forward a theoretical scheme. Winnicott, who suggested more specifically how the infant's relationships at the earliest stages patterned its whole subsequent personal development, also refrained from following through the theoretical logic of his observations. Fairbairn was the first analyst to expose the questionable logic of a developmental scheme based upon the energic concepts that Freud retained as his theoretical base. Fairbairn's scheme, however, did not account adequately for the earliest developmental stages as these were inferred from the study of regressive states. Guntrip, making full use of Winnicott's views, has sought to make good this limitation. The British group does not presume to have made anything like an adequate conceptual map for the development of the psyche. The theoretical problems are far too complex for that. They have, however, shown a fruitful direction and have influenced many areas of contemporary psychoanalytic thought.

  15. Prevalence of problematic mobile phone use in British adolescents.

    Science.gov (United States)

    Lopez-Fernandez, Olatz; Honrubia-Serrano, Luisa; Freixa-Blanxart, Montserrat; Gibson, Will

    2014-02-01

    The problematic use of mobile phones among adolescents has not been widely studied. There are very few instruments for assessing potential technological addiction to mobile phones, or for categorizing different types of users or uses. The most widely used scale is the Mobile Phone Problem Use Scale (MPPUS), which is used to study adult populations, and has been applied in various forms in international contexts. The aims of this study were to adapt the Spanish version of this scale (MPPUSA) to British adolescents, and then to estimate the prevalence of possible problematic users. A questionnaire was administered to a sample of 1,529 secondary school pupils aged between 11 and 18 years, with 1,026 completed questionnaires being collected. The analysis showed that the factor and construct validity and reliability were comparable to those obtained in previous studies. The prevalence of problematic users among the students was 10%, and the typical problematic user tended to be an adolescent between 11 and 14 years old, studying in a public school, who considered themselves to be an expert user of this technology, who made extensive use of his/her mobile phone, and who attributed the same problem of use among their peers. These users presented notable scores in all the symptoms covered by the scale used to assess problematic use. In conclusion, the adaptation of the MPPUSA as a screening scale for British adolescents presents good sensitivity and specificity for detecting the main addictive symptoms proposed in this validated version.

  16. Educational and social class assortative mating in fertile British couples.

    Science.gov (United States)

    Krzyżanowska, Monika; Mascie-Taylor, C G Nicholas

    2014-01-01

    Positive assortative mating for education and social position has been widely reported in a number of countries, but very few studies have tested whether or not educational or social class homogamy is related to differential fertility. This study examined the relationship between educational and social class assortative mating and fertility in a British national cohort. The analyses were based on 7452 husband-wife pairs from the British National Child Development Study (NCDS). The mean fertility was 3.22 children per couple; the number of children significantly increased from higher to lower social classes and from the more educated to the less educated. The extent of assortative mating for social class and educational level was related to fertility; as educational assortative mating decreased so did the average number of children, whereas the opposite trend was observed for social class. When assortative mating for education and social class were considered together, educational assortative mating was the more significant predictor of the number of children and educationally homogamous couples had higher fertility independent of their social class assortative mating. The relationship between assortative mating and fertility for education and social class appeared to be acting in the opposite direction.

  17. Off the Chart: The Crimean War in British Public Consciousness

    Directory of Open Access Journals (Sweden)

    A. L. Berridge

    2015-05-01

    Full Text Available The Crimean War revealed in this issue of '19' is of such rich and varied historical interest as to make a mystery of its relative obscurity with the general public in the UK. My own article adopts a novelist’s perspective to chart some aspects of this popular decline, exploring the treatment of the Siege of Sebastopol through the media of painting, literature, and cinema, and considering whether those aspects of the war that have made the greatest impression on the public mind are also those that make it least commercially attractive. It also examines the more official legacy, from the treatment of war dead to the changing face of sculpted memorials, and by comparing British commemoration with that of Russians in Crimea, discusses the possible role played in national memory by both shame and pride. In a final brief analysis of the 1968 film 'The Charge of the Light Brigade', I consider the extent to which modern rejection of Victorian values has created historical distortion, and whether a more truthful presentation might better serve the cause of preserving an important war in the British public consciousness.

  18. Legionum Urbs and the British Martyrs Aaron and Julius

    Directory of Open Access Journals (Sweden)

    Andrew Breeze

    2016-07-01

    Full Text Available The article focuses on the localization of the martyrdom of the British saints Aaron and Julius, known of solely from Gildas, writing in the early 530s. His remarks were taken up by Bede (d. 737, so that the two saints have never been forgotten, their cult surviving to this day. The author provides a detailed survey of discussion of Aaron and Julius over the centuries, and argues that their martyrdom was neither at Caerleon (in south-east Wales nor Chester (in north-west England, as suggested by numerous scholars, but at Leicester, another major city of Roman Britain. Working from epigraphic sources and taking into account ancient models of naming, the author attempts a reinterpretation of Legionum urbs in the original texts by emending it to Legorum urbs “city of the Legores,” the Celtic people of the Leicester region. The latter, by the time of Gildas, was occupied by the Angles, while the city itself was abandoned, which may explain Gildas’s remarks, otherwise unclear if one identifies Legionum urbs with Caerleon or Chester. The author adduces both historical and linguistic arguments for his proposal and shows that it sheds new light on the history of early British Christianity.

  19. The Role of the British Crown on Security Issues

    Directory of Open Access Journals (Sweden)

    Behar Selimi

    2016-07-01

    Full Text Available United Kingdom is a limited parliamentary monarchy, in which state sovereignty is exercised jointly by two basic political institutions: Royal Crown and Parliament. The credit for a successful political co-governance of these institutions, which are simultaneously bearers of popular sovereignty, are usually addressed to the Queen's lack of executive power to exercise power alone and hence all the restraint in the race for primate of governance. It goes even further considering that the Queen is quite weak and has only ceremonial functions, which do not disturb the Parliament. However, a careful researcher may notice that the Queen continues to affect the British Government in general and in particular on defence issues. Declassification of communication between Prince Charles and the Government in 2013, pointed out a continuing impact of the Queen and her son on many political issues, including those of defence and security. Since Britain has no codified constitution in a single document, it is not easy to determine the real power and competences of the Queen. It is even more difficult, because customary law and precedent prevail. Therefore, the real definition of the role of the Queen in general in the British Government, can be done by studying the culture, structure and constitutional practice. On their basis I will try to determine the real impact of the Queen in matters of defence and security, whether through her prerogatives in relation to the Government and Parliament, or through moral and informal influence in relation to the Prime Minister and particular ministers.

  20. Nutrition claims in British women's magazines from 1940 to 1955.

    Science.gov (United States)

    Barker, M E; Burridge, J D

    2014-04-01

    The present study examined dietary messages conveyed in articles and advertising in two popular British women's magazines, Woman and Home and Woman's Own, between 1940 and 1954. A qualitative analysis of written content was performed, focusing on regularities evident in content, and addressing the construction of the role of women in relation to food provision, as well as assertions for nutritional health. The setting comprised a desk-based study. The study sample encompassed 37 magazines, and yielded a corpus of 569 articles concerned with food or dietary supplements, of which 80.1% were advertisements. Ministry of Food dietary advice featured prominently up to 1945 and advocated food consumption according to a simple nutrient classification. Advertising and article content also used this classification; advocating consumption of food and supplements on the grounds of energy, growth and protection of health was customary. Providing food to meet nutritional needs was depicted as fundamental to women's war effort and their role as dutiful housewives. Advertising in 1950s magazines also focused on nutritional claims, with a particular emphasis on energy provision. These claims reflected the prevailing food policy and scientific understanding of nutritional health. This analysis of food messages in women's magazines provides lessons for contemporary nutrition policy. © 2013 The Authors Journal of Human Nutrition and Dietetics © 2013 The British Dietetic Association Ltd.

  1. Reducing environmental risks in water management in British Columbia

    International Nuclear Information System (INIS)

    Brownlow, H.

    1998-01-01

    The issue of water management regarding hydroelectric generating facilities in British Columbia was discussed. BC Hydro has adopted the following three processes to address water management risks: (1) the Electric System Operating Review, (2) Water Use Plans, and (3) an Environmental Management System. The greatest concern regarding water management are the potential impacts to fish and fish habitat. More than 90 per cent of BC Hydro's installed capacity is hydroelectric, with the balance produced by natural gas and diesel. All facilities are licensed under the provincial Water Act which has been in effect for the past century and is currently way out of date. Among its inadequacies is the fact that it does not provide for the protection of fish. The B.C. Fish Protection Act suggests that effective immediately, there should be no new dams on the Fraser and other significant rivers. BC Hydro facilities impact 16 of the 2,576 streams in British Columbia that support anadromous (migrating) salmon stocks. BC Hydro has 25 dams and diversions located on these 16 rivers. It was concluded that BC Hydro's impact on fish and fish habitat, although relatively small compared to the total fish resource in the province, is significant. The technology now used by BC Hydro is claimed to have the capacity to allow for easy documentation, rapid communication and the development of a comprehensive database for use in identifying and managing the impact of the Utility's operations on the fish population. 10 refs., 12 figs

  2. Introduction to British Sculpture Abroad in the 1960s

    Directory of Open Access Journals (Sweden)

    Jon Wood

    2016-07-01

    Full Text Available In the 1960s, British sculpture enjoyed a complex transitional life, taking on a new, bold, and increasingly internationalized profile, at the very same time that its forms and meanings were being challenged and contested. Both in Britain and beyond its shores, sculpture experienced substantial reorientation at the same time as it developed a rich and complicated “import” and “export” life, conceptually, commercially, and curatorially. When “Sculpture” was “British” and “Abroad”, its “abroad-ness” was not always so explicitly visible, since its forms and concerns frequently chimed with sensibilities and approaches that were emerging elsewhere too, whether they were figurative or abstract, Constructivist or Pop. At the same time, when sculpture was being displayed in Britain, whether in terms of groups, schools, and/or recent tendencies, it was increasingly described as “British Sculpture”. Visual evidence of foreign impact and exchange gradually emerged at the same time as this national and generational trope became a cultural identifier on a broader cultural landscape.

  3. Internships, Workfare, and the Cultural Industries: A British Perspective

    Directory of Open Access Journals (Sweden)

    David Lee

    2015-09-01

    Full Text Available While media work has long been characterized as being structurally dependent on internships, “work experience,” and other forms of free labour (Banks 2007; Hesmondhalgh and Baker 2010, the recent shift towards internships has served to normalize what has become known as the media industries “dirty little secret” (Silver 2005. This article contextualizes internship culture within the British cultural industries against a wider political and social frame. Internships and other modes of “apprenticeship” across the British economy reflect a continuation and transformation of national workfare policies, which seek to avert inflationary pressures by coercing people to work or risk losing their welfare benefits. Internship culture has been highly pronounced in the cultural industries and other attractive white-collar sectors such as law and finance (Perlin 2012. Yet, the provision of internships to young people in previously unimaginable contexts such as fast food, retail, and other low-pay service sectors represents a significant shift in policy, compounded by increasingly draconian demands on young people to comply in order to receive state benefits. Discursively, unpaid media work is now seen as an opportunity for the lucky few, rather than a mode of exploitation servicing corporate gain. This has particular relevance for battles over equality and exploitation which have been fought in these sectors, which this discursive shift makes appear increasingly archaic.

  4. The Role of Capital Productivity in British Airways' Financial Recovery

    Science.gov (United States)

    Morrell, Peter

    1999-01-01

    British Airways (BA) was privatised in 1987, but its financial recovery occurred a number of years earlier. This recovery was sustained throughout the early 1990s economic recession, a period when few major airlines were operating profitably. This paper examines the role of productivity developments at British Airways from the early 1980s through 1996. The emphasis is on capital productivity and investment, but changes in capital intensity and labour productivity are also evaluated. Various measures are considered for both capital and labour productivity: outputs are measured in available tonne-kms (ATKS) and revenue tonne-kms (RTKs), with the former preferred over the latter two measures, after adjustment for work performed by BA for others. Capital inputs are measured in equivalent lease costs adjusted to constant prices with a different treatment of flight and ground equipment or assets. Labour inputs are derived from total payroll costs deflated by a UK wage price index. The airline made considerable capital investments over the period and at the same time went through two major processes of labour restructuring. This resulted in a gradual increase in capital intensity, relative high labour productivity growth, but poor capital productivity performance. However, capital investment played an important role in the airline's sustained labour and total factor productivity over the whole period.

  5. Alive and inseparable : British Columbia's coastal environment : 2006

    International Nuclear Information System (INIS)

    Gilkeson, L.; Bonner, L.; Brown, R.; Francis, K.; Johanneson, D.; Canessa, R.; Paynter, R.

    2006-01-01

    The coastal population of British Columbia is projected to increase by a million people over the next 20 years. Population growth in the region will increase pressure on the environment through land-use changes and water demand, and the discharge of wastes and pollutants. Changes to the environment will have an impact on industries such as forestry, fishing, and tourism that depend on healthy ecosystems. Six technical papers were presented in this volume as part of a project reporting on the coastal environment of British Columbia. The volume was compiled to help in the future-decision making processes in the province. Reporting for the project focused on a region extending westward from the height of the Coast Mountains, and included the marine area within Canada's 200-mile limit. Papers were presented on the following topics: (1) population and economic activity; (2) climate change; (3) industrial contaminants; (4) ecosystem protection; (5) bio-diversity; and (6) fisheries. Each of the 6 papers provided an overview of issues related to their topic, a set of indicators, and a summary of results. refs., tabs., figs

  6. Queer signs: The women of the British projective test movement.

    Science.gov (United States)

    Hubbard, Katherine

    2017-07-01

    As queer history is often hidden, historians must look for "signs" that hint at queer lives and experiences. When psychologists use projective tests, the search for queer signs has historically been more literal, and this was especially true in the homophobic practices of Psychology in the mid-twentieth century. In this paper, I respond to Elizabeth Scarborough's call for more analytic history about the lesser known women in Psychology's history. By focusing on British projective research conducted by lesbian psychologist June Hopkins, I shift perspective and consider, not those who were tested (which has been historically more common), but those who did the testing, and position them as potential queer subjects. After briefly outlining why the projective test movement is ripe for such analysis and the kinds of queer signs that were identified using the Rorschach ink blot test in the mid-twentieth century, I then present June Hopkins' (1969, 1970) research on the "lesbian personality." This work forms a framework upon which I then consider the lives of Margaret Lowenfeld, Ann Kaldegg, and Effie Lillian Hutton, all of whom were involved in the British projective test movement a generation prior to Hopkins. By adopting Hopkins' research to frame their lives, I present the possibility of this ambiguous history being distinctly queer. © 2017 Wiley Periodicals, Inc.

  7. Dental anxiety levels in British servicemen and women.

    Science.gov (United States)

    Grimshaw, G P; Boyle, C A; Newton, T

    2012-09-01

    The objectives of the study were to determine: 1, the level of dental anxiety in British Service personnel; 2 whether there was a difference in dental anxiety levels across the three Services; and, 3, the relationship between number of operational tours and level of dental anxiety. Cross sectional questionnaire survey of individuals attending 3 Armed Services dental treatment centres in the UK. The questionnaires were completed between February 2008 and April 2009. 50 patients each from the Royal Navy, Army and Royal Air Force, selected consecutively from those attending the centres for treatment. There was a 100% response rate. Dental fear as assessed by the Dental Fear Survey (DFS) and scores on a scale of fear of dental injections. 27% of the Armed Services experienced severe dental anxiety: a level similar to that found in the general population. There was no difference in the level of dental anxiety or fear of dental injections across the three Armed Services. There was no relationship between number of operational tours undertaken and level of dental anxiety. Dental anxiety is found amongst members of the British Armed Services at levels similar to that in the general population. This represents a challenge for service provision, particularly in operational settings.

  8. More of the same? The European Employment Strategy and the normalization of British employment policies

    DEFF Research Database (Denmark)

    Triantafillou, Peter

    2011-01-01

    This article examines the ways in which the European Employment Strategy seeks to govern and further improve the performance of British employment policies. It is argued that by creating an epistemological and normalizing space for the problematization and governing of unemployment in terms...... of activation, the European Employment Strategy contributes to the legitimation of British employment policies. By addressing unemployment as a problem of structural labor market barriers, missing incentives and inadequate employability, the European Employment Strategy serves to reinforce the British...

  9. TOLERATION OF CATHOLICS IN QUEBEC AND BRITISH PUBLIC FINANCES, 1760 TO 1775

    Directory of Open Access Journals (Sweden)

    Vincent Geloso

    2015-06-01

    Full Text Available This paper tackles the issue of the institutional decisions made by the British when they conquered the French colony of Quebec in 1760 by examining why toleration was the chosen policy course. Past experiences and the dire state of British public finances pushed the British government to adopt toleration of Catholics and of French legal institution in the colony as a policy designed to preserve the empire financially and strategically.

  10. Russian-British confrontation in Far East in late XIX century

    Directory of Open Access Journals (Sweden)

    - Масумех Али Эхтиари Чароймаги

    2013-12-01

    Full Text Available The article considers the Russian-British confrontation in China in late XIX century. The Russian and foreign (British in particular historiographies have different views of the causes and manifestations of the Russian-British political and economic contradictions in China. The researches’ disputes are explained by their different interpretations of the same events, which depend on their personal political positions. Besides, the views of scientists from previous epochs sometimes influence modern researches.

  11. Laser power supply

    International Nuclear Information System (INIS)

    Bernstein, D.

    1975-01-01

    The laser power supply includes a regulator which has a high voltage control loop based on a linear approximation of a laser tube negative resistance characteristic. The regulator has independent control loops for laser current and power supply high voltage

  12. Laser therapy for cancer

    Science.gov (United States)

    ... Yag lasers. These lasers are used to treat cancer of the uterus, colon, and esophagus. The laser-emitting fibers are put inside a tumor to heat up and damage the cancer cells. This treatment has been used to shrink ...

  13. Laser fusion: an overview

    International Nuclear Information System (INIS)

    Boyer, K.

    1975-01-01

    The laser fusion concept is described along with developments in neodymium and carbon dioxide lasers. Fuel design and fabrication are reviewed. Some spin-offs of the laser fusion program are discussed. (U.S.)

  14. Laser therapy (image)

    Science.gov (United States)

    A laser is used for many medical purposes. Because the laser beam is so small and precise, it enables ... without injuring surrounding tissue. Some uses of the laser are retinal surgery, excision of lesions, and cauterization ...

  15. Laser Research Lab

    Data.gov (United States)

    Federal Laboratory Consortium — The Laser Research lab is thecenter for the development of new laser sources, nonlinear optical materials, frequency conversion processes and laser-based sensors for...

  16. Changes in pupil size following panretinal retinal photocoagulation: conventional laser vs pattern scan laser (PASCAL).

    Science.gov (United States)

    Yilmaz, I; Perente, I; Saracoglu, B; Yazici, A T; Taskapili, M

    2016-10-01

    PurposeTo evaluate and compare the possible changes in pupil size subsequent to panretinal laser photocoagulation (PRP) via conventional laser and pattern scan laser (PASCAL).Patients and methodsForty eyes of 40 patients with diabetic retinopathy were included. 20 eyes had a PRP via conventional laser and formed Group 1. 20 eyes had a PRP via PASCAL laser and formed Group 2. The participants underwent standard ophthalmologic examination at baseline. Automated infrared pupillometry were performed at baseline and month 1.ResultsThe mean pupillary measurements (mm) for Group 1 (in the order photopic, mesopic, and scotopic conditions) were 2.88±0.34, 3.38±0.40, and 3.95±0.38, and changed to 3.64±0.42, 4.18±0.42, and 4.58±0.48, respectively. There was significant increase in pupil size at month 1 (PPASCAL laser.

  17. Comparison of the physical performance of high resolution CRT displays and films recorded by laser image printers and displayed on light-boxes and the need for a display standard

    International Nuclear Information System (INIS)

    Blume, H.; Roehrig, H.; Browne, M.; Ji, T.L.

    1990-01-01

    In this paper performance figures are reported on absolute luminance, luminance uniformity, characteristic display function, internal scatter, dynamic range, distortion, modulation transfer and its spatial uniformity, and temporal and spatial noise of two commercial CRT display systems as well as films printed by laser image recorders and displayed on light-boxes. One of the cRT displays has a matrix of nominally 2000 x 2000 pixels, the other of 1000 x 1500 pixels. The laser image recorders cover a matrix of 3500 x 2200 pixels. When comparing equal pixel matrices of hard versus soft copy displays, typically hard copies facilitate greater information transfer than soft copies due to a presentation with high absolute luminance, greater perceived dynamic range, and better spatial resolution. Perceived dynamic range and resolution are partially degraded ion the CRT displays by internal scatter. Soft and hard copy displays are about equivalent in terms of luminance non-uniformity, noise, and geometrical distortion. All displays differ in their characteristic display functions and thus in perceived contract resolution

  18. Selective Memory: British Perceptions of the Herero-Nama Genocide, 1904-1908 and 1918

    DEFF Research Database (Denmark)

    Bomholt Nielsen, Mads

    2017-01-01

    This article examines British officials’ perceptions of, and degree of involvement in, the Herero–Nama war and subsequent genocide in German South-West Africa in 1904–1908. By examining contemporary British correspondence on this event and comparing it to the British ‘Blue Book’ of 1918......, the article shows that British officials were far more interested in retaining stability than in the suffering of Africans in German territory at the time of the genocide. Nevertheless, by 1918 they used this event as an instrument to confiscate Germany’s colonies. Being part of a wider transnational approach...

  19. Back to the Future: The British Southern Campaign, 1780-1781

    National Research Council Canada - National Science Library

    Brinkley, William

    1998-01-01

    .... The British campaign's complex environment displays marked similarities with several U.S. Army operations conducted since 1990, particularly operations in Panama, Haiti, Northern Iraq and Somalia...

  20. Standing the Test of Time: Revising the British Army's Counterinsurgency Doctrine

    National Research Council Canada - National Science Library

    O'Herlihy, Simon

    2008-01-01

    The recent experiences in Iraq and Afghanistan confirm the fundamental validity of the British Army's counterinsurgency doctrine, but offer lessons which should be incorporated into a doctrinal review...

  1. Gauging citizen support for a low carbon fuel standard

    International Nuclear Information System (INIS)

    Rhodes, Ekaterina; Axsen, Jonn; Jaccard, Mark

    2015-01-01

    Since 2007, several variations of a low carbon fuel standard (LCFS) have been implemented around the world. While emerging research tends to focus on greenhouse gas emission reductions from an LCFS, no studies have assessed the policy's political acceptability—a critical component of implementation. We elicit public support for an existing LCFS in British Columbia and a hypothetical (proposed) LCFS for the rest of Canada using survey data collected from a representative sample of Canadian citizens (n=1306). Specifically, we assess: (1) citizen awareness of British Columbia's LCFS, (2) stated citizen support for the LCFS, and (3) how individual characteristics relate to levels of citizen support. We find that British Columbia's LCFS is almost unknown among British Columbia respondents, but once explained, 90% of respondents support it. We refer to this combination of low knowledge and high support as “passive support.” We find similarly broad support in all other Canadian provinces, implying that citizen opposition is unlikely in jurisdictions considering an LCFS. Statistical analysis identifies some individual characteristics associated with LCFS support, including attitudes, demographics, and contextual factors. Results indicate where policymakers might anticipate opposition if it arises due to increased policy stringency or media coverage. - Highlights: • Most citizens are unaware of British Columbia's low carbon fuel standard (LCFS). • We observe passive support: low awareness and high support of the policy. • An LCFS achieves broad support among British Columbia's and Canadian citizens. • Households relying on single occupancy vehicles are less likely to support an LCFS

  2. The relationship between minimum alcohol prices, outlet densities and alcohol-attributable deaths in British Columbia, 2002-09.

    Science.gov (United States)

    Zhao, Jinhui; Stockwell, Tim; Martin, Gina; Macdonald, Scott; Vallance, Kate; Treno, Andrew; Ponicki, William R; Tu, Andrew; Buxton, Jane

    2013-06-01

    To investigate relationships between periodic increases in minimum alcohol prices, changing densities of liquor stores and alcohol-attributable (AA) deaths in British Columbia, Canada. Cross-section (16 geographic areas) versus time-series (32 annual quarters) panel analyses were conducted with AA deaths as dependent variables and price, outlet densities and socio-demographic characteristics as independent variables. Populations of 16 Health Service Delivery Areas in British Columbia, Canada. Age-sex-standardized rates of acute, chronic and wholly AA mortality; population densities of restaurants, bars, government and private liquor stores; minimum prices of alcohol in dollars per standard drink. A 10% increase in average minimum price for all alcoholic beverages was associated with a 31.72% [95% confidence interval (CI): ± 25.73%, P stores was associated with a 2.45% (95% CI: ± 2.39%, P stores were associated with increases in alcohol-attributable mortality. © 2013 The Authors, Addiction © 2013 Society for the Study of Addiction.

  3. Squeezing in an injection-locked semiconductor laser

    Science.gov (United States)

    Inoue, S.; Machida, S.; Yamamoto, Y.; Ohzu, H.

    1993-09-01

    The intensity-noise properties of an injection-locked semiconductor laser were studied experimentally. The constant-current-driven semiconductor laser producing the amplitude-squeezed state whose intensity noise was reduced below the standard quantum limit (SQL) by 0.72 dB was injection-locked by an external master laser. The measured intensity-noise level of the injection-locked semiconductor laser was 0.91 dB below the SQL. This experimental result indicates that a phase-coherent amplitude-squeezed state or squeezed vacuum state together with a reference local oscillator wave can be generated directly by semiconductor laser systems.

  4. Analysis of the slider force calibration procedure for the British Pendulum Skid Resistance Tester

    Science.gov (United States)

    Hiti, Miha; Ducman, Vilma

    2014-02-01

    British Pendulum Skid Resistance Testers are being used for the determination of the slip/skid resistance of surfaces by laboratories all around the world in different fields. The instrument itself can give reproducible results; however, the comparison of results obtained by different instruments can show large deviations. This paper presents a comparison of the performance of four pendulum testers, the investigation of requirements in international standards and the analysis of the calibration procedure for the determination of the slider force/deflection characteristics. The slider force/deflection characteristics were measured manually and also automatically with a uniaxial tensile/compression testing machine using different techniques. The results highlight the importance of the slider force/deflection characteristic shape and its influence on the results indicated by the pendulum tester and outline inconsistencies in different international standards describing the same device and its requirements. Presented results show good reproducibility and comparability of the pendulum test results when calibration is performed with the assembled pendulum either manually or automatically, provided the stricter slider force characteristic envelope requirements are taken into consideration. The actual slider force should be stable from 1.5 mm deflection onwards.

  5. Laser satellite power systems

    Energy Technology Data Exchange (ETDEWEB)

    Walbridge, E.W.

    1980-01-01

    A laser satellite power system (SPS) converts solar power captured by earth-orbiting satellites into electrical power on the earth's surface, the satellite-to-ground transmission of power being effected by laser beam. The laser SPS may be an alternative to the microwave SPS. Microwaves easily penetrate clouds while laser radiation does not. Although there is this major disadvantage to a laser SPS, that system has four important advantages over the microwave alternative: (1) land requirements are much less, (2) radiation levels are low outside the laser ground stations, (3) laser beam sidelobes are not expected to interfere with electromagnetic systems, and (4) the laser system lends itself to small-scale demonstration. After describing lasers and how they work, the report discusses the five lasers that are candidates for application in a laser SPS: electric discharge lasers, direct and indirect solar pumped lasers, free electron lasers, and closed-cycle chemical lasers. The Lockheed laser SPS is examined in some detail. To determine whether a laser SPS will be worthy of future deployment, its capabilities need to be better understood and its attractiveness relative to other electric power options better assessed. First priority should be given to potential program stoppers, e.g., beam attenuation by clouds. If investigation shows these potential program stoppers to be resolvable, further research should investigate lasers that are particularly promising for SPS application.

  6. Semiconductor Laser Measurements Laboratory

    Data.gov (United States)

    Federal Laboratory Consortium — The Semiconductor Laser Measurements Laboratory is equipped to investigate and characterize the lasing properties of semiconductor diode lasers. Lasing features such...

  7. Laser Protection TIL

    Data.gov (United States)

    Federal Laboratory Consortium — The Laser Protection TIL conducts research and analysis of laser protection materials along with integration schemes. The lab's objectives are to limit energy coming...

  8. Tomography of laser fusion plasmas

    International Nuclear Information System (INIS)

    Ceglio, N.M.

    1977-01-01

    Experimental programs exist in a number of laboratories throughout the world to test the feasibility of using powerful laser systems to drive the implosion of hydrogen isotope fuel to thermonuclear burn conditions. In a typical experiment multiple laser beams are focused onto a glass microshell (typically 50 μm to 200 μm diameter) filled with an equimolar D-T gas mixture. X-ray and particle emissions from the target provide important information about the hydrodynamic implosion of the glass shell and the associated compression and heating of the D-T fuel. Standard diagnostics for imaging such emissions are the grazing incidence reflection (GIR) x-ray microscope and the pinhole camera. Recently, a particular coded imaging technique, Zone Plate Coded Imaging (ZPCI), has been successfully used for x-ray and particle microscopy of laser fusion plasmas. ZPCI is highly attractive for investigating laser produced plasmas because it possesses a tomographic capability not shared by either the GIR or pinhole imaging techniques. This presentation provides a brief discussion of the tomographic potential of ZPCI. In addition, the first tomographic x-ray images (tomographic resolution approximately 74 μm) of a laser produced plasma are presented

  9. Frequency standards

    CERN Document Server

    Riehle, Fritz

    2006-01-01

    Of all measurement units, frequency is the one that may be determined with the highest degree of accuracy. It equally allows precise measurements of other physical and technical quantities, whenever they can be measured in terms of frequency.This volume covers the central methods and techniques relevant for frequency standards developed in physics, electronics, quantum electronics, and statistics. After a review of the basic principles, the book looks at the realisation of commonly used components. It then continues with the description and characterisation of important frequency standards

  10. Beam uniformity of flat top lasers

    Science.gov (United States)

    Chang, Chao; Cramer, Larry; Danielson, Don; Norby, James

    2015-03-01

    Many beams that output from standard commercial lasers are multi-mode, with each mode having a different shape and width. They show an overall non-homogeneous energy distribution across the spot size. There may be satellite structures, halos and other deviations from beam uniformity. However, many scientific, industrial and medical applications require flat top spatial energy distribution, high uniformity in the plateau region, and complete absence of hot spots. Reliable standard methods for the evaluation of beam quality are of great importance. Standard methods are required for correct characterization of the laser for its intended application and for tight quality control in laser manufacturing. The International Organization for Standardization (ISO) has published standard procedures and definitions for this purpose. These procedures have not been widely adopted by commercial laser manufacturers. This is due to the fact that they are unreliable because an unrepresentative single-pixel value can seriously distort the result. We hereby propose a metric of beam uniformity, a way of beam profile visualization, procedures to automatically detect hot spots and beam structures, and application examples in our high energy laser production.

  11. Multiculturalism and Contemporary British Fiction: Londonstani and The Islamist

    Directory of Open Access Journals (Sweden)

    Adriano Elia

    2010-08-01

    Full Text Available At the beginning of the 21st century, the need to move beyond post-colonial and cultural studies somewhat abstract categories seems to be stronger than ever. In order to analyse all-encompassing issues such as ‘Europe', ‘black' and ‘white', a reification of post-colonial theoretical tools is made possible by an ever-increasing permeability of the boundaries between subjects such as literature, sociology, contemporary history, political science, international relations, anthropology. By pursuing an interdisciplinary and pragmatic approach, one finds it difficult to identify a persuasive idea of ‘Europe' when even its ‘capital' Brussels has to face an identity compromise between Flemish and Walloons (Castells, AlSayyad: 2002; by the same token, it is hard to imagine that, say, Scottish people would define themselves first as Europeans, and then as British and Scottish - the opposite sequential order is much more likely. Traditional categories such as ‘black' and ‘white' are also being repeatedly challenged and disrupted, witness the recent publication of novels such as Gautam Malkani's Londonstani (2006 and Ed Husain's The Islamist (2007. The former displays a religion-free kind of identity describing the life in Hounslow of apolitical British-Asian teenage rude-boys ironically embracing the traditionally opposed black hip-hop culture. The latter, instead, is based on a real account of a British Muslim who, after becoming an Islamic fundamentalist, rejected political Islam and returned to normal life. My essay aims to investigate this anti-essentialist notion of the South-Asian community in contemporary Britain by reflecting on the passionate debate between those who keep celebrating multiculturalism as the necessary path to a more tolerant society, and those who blame the policy of appeasement that supposedly fostered the growth of Muslim fundamentalism in Britain. Bearing in mind the diverse colonial histories and the dangers of

  12. To Teach Standard English or World Englishes? A Balanced Approach to Instruction

    Science.gov (United States)

    Farrell, Thomas S. C.; Martin, Sonia

    2009-01-01

    This article suggests that English language teachers should consider all varieties of English, not just British Standard English or American Standard English. In order to better prepare students for the global world, and to show them that their own English is valued, teachers can implement a balanced approach that incorporates the teaching and…

  13. Laser technology (selected articles)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1996-04-09

    This paper presents high-energy CW HF/DF chemical lasers developed under the U.S. Navy Sealite program and the Alpha program of the DARPA Triad program, and a brief account of Soviet chemical lasers. Continuous wave HF/DF chemical lasers were developed starting in the late sixties as high-power lasers of consistent interest to military circles. These are lasers that have the most matured technology among present-day high-energy lasers. It is hoped that in the near future CW HF/DF chemical lasers can be developed into a space laser weapon to deal with ICBMs. CW HF/DF chemical lasers are an integration of technologies in gas dynamics, chemistry, fluid chemistry, optics, and lasers. By using the branching chain reaction of heat liberation, inversion of the population ratio is generated to obtain lasers.

  14. Poly articulated robot with integrated laser beam

    International Nuclear Information System (INIS)

    Gonnord, J.; Garrec, P.; Beaucourt, P. de; Noel, J.P.

    1988-09-01

    The ROLD program is born by association of two concepts: an articulated hollow system at five axis, sufficiently thin to be introduced in the standard aperture of a hot cell, the integration of a power CO 2 laser beam in the manipulator arm, capable to execute properly the cutting up of a metallic structures. In this paper we present the main characteristics of the robot and laser proceeding and the lessons of an introducing test in a mock up [fr

  15. Relevant Standards

    Indian Academy of Sciences (India)

    .86: Ethernet over LAPS. Standard in China and India. G.7041: Generic Framing Procedure (GFP). Supports Ethernet as well as other data formats (e.g., Fibre Channel); Protocol of ... IEEE 802.3x for flow control of incoming Ethernet data ...

  16. Log Books and the Law of Storms: Maritime Meteorology and the British Admiralty in the Nineteenth Century.

    Science.gov (United States)

    Naylor, Simon

    2015-12-01

    This essay contributes to debates about the relationship between science and the military by examining the British Admiralty's participation in meteorological projects in the first half of the nineteenth century. It focuses on attempts to transform Royal Navy log books into standardized meteorological registers that would be of use to both science and the state. The essay begins with a discussion of Admiralty Hydrographer Francis Beaufort, who promoted the use of standardized systems for the observation of the weather at sea. It then examines the application of ships' logs to the science of storms. The essay focuses on the Army engineer William Reid, who studied hurricanes while stationed in Barbados and Bermuda. Reid was instrumental in persuading the Admiralty to implement a naval meteorological policy, something the Admiralty Hydrographer had struggled to achieve. The essay uses the reception and adoption of work on storms at sea to reflect on the means and ends of maritime meteorology in the mid-nineteenth century.

  17. The Geoscience Laser Altimeter System Laser Transmitter

    Science.gov (United States)

    Afzal, R. S.; Dallas, J. L.; Yu, A. W.; Mamakos, W. A.; Lukemire, A.; Schroeder, B.; Malak, A.

    2000-01-01

    The Geoscience Laser Altimeter System (GLAS), scheduled to launch in 2001, is a laser altimeter and lidar for tile Earth Observing System's (EOS) ICESat mission. The laser transmitter requirements, design and qualification test results for this space- based remote sensing instrument are presented.

  18. Microfabricated ion frequency standard

    Science.gov (United States)

    Schwindt, Peter; Biedermann, Grant; Blain, Matthew G.; Stick, Daniel L.; Serkland, Darwin K.; Olsson, III, Roy H.

    2010-12-28

    A microfabricated ion frequency standard (i.e. an ion clock) is disclosed with a permanently-sealed vacuum package containing a source of ytterbium (Yb) ions and an octupole ion trap. The source of Yb ions is a micro-hotplate which generates Yb atoms which are then ionized by a ultraviolet light-emitting diode or a field-emission electron source. The octupole ion trap, which confines the Yb ions, is formed from suspended electrodes on a number of stacked-up substrates. A microwave source excites a ground-state transition frequency of the Yb ions, with a frequency-doubled vertical-external-cavity laser (VECSEL) then exciting the Yb ions up to an excited state to produce fluorescent light which is used to tune the microwave source to the ground-state transition frequency, with the microwave source providing a precise frequency output for the ion clock.

  19. Fractional laser-assisted drug delivery

    DEFF Research Database (Denmark)

    Erlendsson, Andrés M; Doukas, Apostolos G; Farinelli, William A

    2016-01-01

    BACKGROUND AND OBJECTIVE: Ablative fractional laser (AFXL) is rapidly evolving as one of the foremost techniques for cutaneous drug delivery. While AFXL has effectively improved topical drug-induced clearance rates of actinic keratosis, treatment of basal cell carcinomas (BCCs) has been challenging......, potentially due to insufficient drug uptake in deeper skin layers. This study sought to investigate a standardized method to actively fill laser-generated channels by altering pressure, vacuum, and pressure (PVP), enquiring its effect on (i) relative filling of individual laser channels; (ii) cutaneous...

  20. A comparison of antenatal classifications of ‘overweight’ and ‘obesity’ prevalence between white British, Indian, Pakistani and Bangladeshi pregnant women in England; analysis of retrospective data

    Directory of Open Access Journals (Sweden)

    Rebecca Garcia

    2017-04-01

    Full Text Available Abstract Background Maternal obesity increases women’s risk of poor birth outcomes, and statistics show that Pakistani and Bangladeshi women (who are born or settled in the UK experience higher rates of perinatal mortality and congenital anomalies than white British or white Other women. This study compares the prevalence of maternal obesity in Indian, Pakistani, Bangladeshi and white British women using standard and Asian-specific BMI metrics. Method Retrospective cross-sectional analysis using routinely recorded secondary data in Ciconia Maternity information System (CMiS, between 2008 and 2013. Mothers (n = 15,205 whose ethnicity was recorded as white British, Bangladeshi, Pakistani or Indian. Adjusted standardised residuals and Pearson Chi-square. Main outcome measures: Percentage of mothers stratified by ethnicity (Indian, Pakistani, Bangladeshi and white British who are classified as overweight or obese using standard and revised World Health Organisation BMI thresholds. Results Compared to standard BMI thresholds, using the revised BMI threshold resulted in a higher prevalence of obesity: 22.8% of Indian and 24.3% of Bangladeshi and 32.3% of Pakistani women. Pearson Chi-square confirmed that significantly more Pakistani women were classified as ‘obese’ compared with white British, Indian or Bangladeshi women (χ 2  = 499,88 df = 9, p < 0.001. Conclusions There are differences in the prevalence of obese and overweight women stratified by maternal ethnicity of white British, Indian, Pakistani and Bangladeshi. Using revised anthropometric measures in Indian, Pakistani and Bangladeshi women has clinical implications for identifying risks associated with obesity and increased complications in pregnancy.