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Sample records for based non-polynomial lut

  1. [A digital subtraction angiography system based on LUT algorithms].

    Science.gov (United States)

    Chen, Xiangan; Li, Kaiyang; Zhou, Li; Chen, Jiansheng

    2006-04-01

    Look-up table (LUT) algorithms have been widely used in digital signal processing, but the article on the application of LUT algorithms in digital subtraction angiography was rarely reported. In this article, the effect of different LUT algorithms on digital subtraction angiography images is introduced. The result reveals that different LUT algorithms can bring about different effects of image. Based on analysis and comparison, we deem it possible to acquire improved images of DSA by use of some LUT algorithms with image processing.

  2. Designing LUT-based mealy FSMs with transformation of state codes

    Science.gov (United States)

    Mielcarek, Kamil; Barkalov, Alexander; Titarenko, Larisa

    2017-11-01

    A design method is proposed for LUT-based Mealy FSMs. The method is based on transformation of state codes into outputs of FSMs. Example of design and results of investigations are given. The method allows obtaining FSM logic circuits with less amount of LUTs than known from literature methods.

  3. Non polynomial B-splines

    Science.gov (United States)

    Laksâ, Arne

    2015-11-01

    B-splines are the de facto industrial standard for surface modelling in Computer Aided design. It is comparable to bend flexible rods of wood or metal. A flexible rod minimize the energy when bending, a third degree polynomial spline curve minimize the second derivatives. B-spline is a nice way of representing polynomial splines, it connect polynomial splines to corner cutting techniques, which induces many nice and useful properties. However, the B-spline representation can be expanded to something we can call general B-splines, i.e. both polynomial and non-polynomial splines. We will show how this expansion can be done, and the properties it induces, and examples of non-polynomial B-spline.

  4. An extension to 3D topological thinning method based on LUT for colon centerline extraction.

    Science.gov (United States)

    Ding, M; Tong, Ruof; Liao, Sheng-hui; Dong, JinX

    2009-04-01

    Topological thinning is a valid but time-consuming method to calculate the centerline of human colon or other hollow organs accurately. An optimized 3D topological thinning method based on Look-up Table (LUT), which was proposed by Sadlier, proves to be effective in improving the efficiency on many occasions. However, it is still inefficient when processing some complex datasets. In this paper, we first analyze the reason causing the unstable performance, and then present an extension to Sadlier's method, which enables the rapid execution of the extraneous loops removing by avoiding unnecessary global connectivity testing. To reach this purpose, a min-heap structure is introduced to select a seed from the candidate voxels set of the final centerline, and region growing technique is used to find the voxels in the same branch with the seed. The comparison among the standard topological thinning, LUT method and the extension to LUT method indicates the extension achieves the most efficient performance.

  5. Encoding of compatible micro-operations in LUT-based FSMs

    Science.gov (United States)

    Mielcarek, Kamil; Barkalov, Alexander; Titarenko, Larysa

    2017-08-01

    This article shows a method of encoding of microoperations for LUT-based Mealy FSMs. The proposed design approach is based on two methods of structural decomposition of FSMs for diminishing the number of arguments for input memory functions in output functions. This method is viewed as an alternative to the encoding of collections of output functions. An example of design is given.

  6. Design of OLED gamma correction system based on the LUT

    Science.gov (United States)

    Tai, Yonghang; Yun, Lijun; Shi, Junsheng; Chen, Zaiqing; Li, Qiong

    2011-11-01

    Gamma correction is an important processing in reproduce images information realizing of video source. In order to improve the image sharpness of the OLED micro-display, a Gamma correction system was established to compensate for the gray scale distortion of the micro-display which is caused by the difference between the optical and electrical characteristic property. Based on the North OLEiD Company's 0.5 inch OLED, We proposed a Gamma correction system to converts 8 bits input signal into 9 bits displayed on the OLED. It used Microchip as the MCU and the master of the I2C serial bus, Development of the hardware system measurement verified the correction of VGA and CVBS video input and the picture quality also apparently improved.

  7. A Tuned Value Chain Model for University Based Public Research Organisation. Case Lut Cst.

    Directory of Open Access Journals (Sweden)

    Vesa Karvonen

    2012-12-01

    Full Text Available The Porter´s value chain model was introduced for strategic business purposes. During the last decades also Universities and University based institutes have started to use actions similar to private business concepts. A University based institute is not independent actor like company but there are interest groups who are expecting them to act like they would be. This article discusses about the possibility of utilize tuned value chain to public research organizations (PRO. Also the interactions of tuned value chain model to existing industrial network are discussed. The case study object is the Centre for Separation Technology (CST at Lappeenranta University of Technology (LUT in Finland.

  8. Numerical Solutions for Convection-Diffusion Equation through Non-Polynomial Spline

    Directory of Open Access Journals (Sweden)

    Ravi Kanth A.S.V.

    2016-01-01

    Full Text Available In this paper, numerical solutions for convection-diffusion equation via non-polynomial splines are studied. We purpose an implicit method based on non-polynomial spline functions for solving the convection-diffusion equation. The method is proven to be unconditionally stable by using Von Neumann technique. Numerical results are illustrated to demonstrate the efficiency and stability of the purposed method.

  9. Estimation of winter wheat canopy nitrogen density at different growth stages based on Multi-LUT approach

    Science.gov (United States)

    Li, Zhenhai; Li, Na; Li, Zhenhong; Wang, Jianwen; Liu, Chang

    2017-10-01

    Rapid real-time monitoring of wheat nitrogen (N) status is crucial for precision N management during wheat growth. In this study, Multi Lookup Table (Multi-LUT) approach based on the N-PROSAIL model parameters setting at different growth stages was constructed to estimating canopy N density (CND) in winter wheat. The results showed that the estimated CND was in line with with measured CND, with the determination coefficient (R2) and the corresponding root mean square error (RMSE) values of 0.80 and 1.16 g m-2, respectively. Time-consuming of one sample estimation was only 6 ms under the test machine with CPU configuration of Intel(R) Core(TM) i5-2430 @2.40GHz quad-core. These results confirmed the potential of using Multi-LUT approach for CND retrieval in winter wheat at different growth stages and under variables climatic conditions.

  10. Relationship among diet habit and lower urinary tract symptoms and sexual function in outpatient-based males with LUTS/BPH: a multiregional and cross-sectional study in China.

    Science.gov (United States)

    Chen, Yuke; Yu, Wei; Zhou, Liqun; Wu, Shiliang; Yang, Yang; Wang, Jianye; Tian, Ye; He, Dalin; Xu, Yong; Huang, Jian; Wang, Xiaofeng; Gao, Xin; Li, Hanzhong; Ma, Lulin; Zhang, Ning; Zhao, Shengtian; Jin, Xunbo

    2016-08-31

    This study assessed the effect of diet habits on lower urinary tract symptoms (LUTS) and sexual function in Chinese men with LUTS/benign prostatic hypertrophy (LUTS/BPH). Multicentre study conducted between July 2013 and December 2013 in 11 hospitals in 3 geographic regions in China. Overall, participants with LUTS/BPH accounted for 61.4% (2584/4208) of the respondents, whose data were processed in the following statistical analysis. LUTS and sexual function were assessed based on the International Prostate Symptom Score (IPSS) and the International Index of Erectile Function 5 (IIEF-5) score. Prostate volume (PV) was determined by ultrasound. A total of 4208 participants met the inclusion criteria. The average age of the whole participants was 65.8±7.7 years. Overall, participants with LUTS/BPH accounted for 61.4% (2584/4208) of the respondents, whose data were processed in the following statistical analysis. Generally, prostate enlargement was greatest in south China. LUTS and male sexual dysfunction (MSD) were most severe in northwest China. Based on multivariable analysis, PV enlarged as the age (peducation (peducation level (peducation, dietary habits and geographic difference might also play an important role in the variation of PV, LUTS and MSD for Chinese men with LUTS/BPH. Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://www.bmj.com/company/products-services/rights-and-licensing/

  11. Radiation-hardened MRAM-based LUT for non-volatile FPGA soft error mitigation with multi-node upset tolerance

    Science.gov (United States)

    Zand, Ramtin; DeMara, Ronald F.

    2017-12-01

    In this paper, we have developed a radiation-hardened non-volatile lookup table (LUT) circuit utilizing spin Hall effect (SHE)-magnetic random access memory (MRAM) devices. The design is motivated by modeling the effect of radiation particles striking hybrid complementary metal oxide semiconductor/spin based circuits, and the resistive behavior of SHE-MRAM devices via established and precise physics equations. The models developed are leveraged in the SPICE circuit simulator to verify the functionality of the proposed design. The proposed hardening technique is based on using feedback transistors, as well as increasing the radiation capacity of the sensitive nodes. Simulation results show that our proposed LUT circuit can achieve multiple node upset (MNU) tolerance with more than 38% and 60% power-delay product improvement as well as 26% and 50% reduction in device count compared to the previous energy-efficient radiation-hardened LUT designs. Finally, we have performed a process variation analysis showing that the MNU immunity of our proposed circuit is realized at the cost of increased susceptibility to transistor and MRAM variations compared to an unprotected LUT design.

  12. Lut Desert, Iran

    Science.gov (United States)

    1981-01-01

    Iran is a large country with several desert regions. In the Dasht-E-Lut (Lut Desert) (30.5N, 58.5E) an area known as Namak-Zar, about 100 miles east of the city of Kerman, is at the center of this photograph. Some of the world's most prominent Yardangs (very long, parallel ridges and depressions) have been wind eroded in these desert dry lake bed sediments. At the left of the photo is a large field of sand dunes at right angles to the wind.

  13. Collective motions and non-polynomial lagrangians in Fokker-Planck dynamics

    International Nuclear Information System (INIS)

    Spina, A.; Vucetich, H.

    1986-04-01

    A method based on the ideas of collective motion is applied to Fokker-Planck dynamics. The usual diagramatic techniques used in stochastic dynamics are enlarged in order to deal with the non-polynomial Lagrangians that appear in the theory. The technique is tested and applied to the case of a self-sustained sinusoidal oscillator whose statistical behaviour is well understood: the Poincare oscillator. (author)

  14. A Tuned Value Chain Model for University Based Public Research Organisation. Case Lut Cst.

    OpenAIRE

    Vesa Karvonen; Matti Karvonen; Andrzej Kraslawski

    2012-01-01

    The Porter´s value chain model was introduced for strategic business purposes. During the last decades also Universities and University based institutes have started to use actions similar to private business concepts. A University based institute is not independent actor like company but there are interest groups who are expecting them to act like they would be. This article discusses about the possibility of utilize tuned value chain to public research organizations (PRO). Also the interact...

  15. Retrieval of Seasonal Leaf Area Index from Simulated EnMAP Data through Optimized LUT-Based Inversion of the PROSAIL Model

    Directory of Open Access Journals (Sweden)

    Matthias Locherer

    2015-08-01

    Full Text Available The upcoming satellite mission EnMAP offers the opportunity to retrieve information on the seasonal development of vegetation parameters on a regional scale based on hyperspectral data. This study aims to investigate whether an analysis method for the retrieval of leaf area index (LAI, developed and validated on the 4 m resolution scale of six airborne datasets covering the 2012 growing period, is transferable to the spaceborne 30 m resolution scale of the future EnMAP mission. The widely used PROSAIL model is applied to generate look-up-table (LUT libraries, by which the model is inverted to derive LAI information. With the goal of defining the impact of different selection criteria in the inversion process, different techniques for the LUT based inversion are tested, such as several cost functions, type and amount of artificial noise, number of considered solutions and type of averaging method. The optimal inversion procedure (Laplace, median, 4% inverse multiplicative noise, 350 out of 100,000 averages is identified by validating the results against corresponding in-situ measurements (n = 330 of LAI. Finally, the best performing LUT inversion (R2 = 0.65, RMSE = 0.64 is adapted to simulated EnMAP data, generated from the airborne acquisitions. The comparison of the retrieval results to upscaled maps of LAI, previously validated on the 4 m scale, shows that the optimized retrieval method can successfully be transferred to spaceborne EnMAP data.

  16. Look-up table (LUT) method for inverse halftoning.

    Science.gov (United States)

    Mese, M; Vaidyanathan, P P

    2001-01-01

    In this paper we propose look-up table (LUT) based methods for inverse halftoning of images. The LUT for inverse halftoning is obtained from the histogram gathered from a few sample halftone images and corresponding original images. The method is extremely fast (no filtering is required) and the PSNR and visual image quality achieved is comparable to the best methods known for inverse halftoning. The LUT inverse halftoning method does not depend on the specific properties of the halftoning method, and can be applied to any halftoning method. Then, an algorithm for template selection for LUT inverse halftoning is introduced. We demonstrate the performance of the LUT inverse halftoning algorithm on error diffused images and ordered dithered images. We also extend LUT inverse halftoning to color halftones.

  17. Anomalies in non-polynomial closed string field theory

    Energy Technology Data Exchange (ETDEWEB)

    Kaku, Michio (Institute for Advanced Study, Princeton, NJ (USA))

    1990-11-01

    The complete classical action for the non-polynomial closed string field theory was written down last year by the author and the Kyoto group. It successfully reproduces all closed string tree diagrams, but fails to reproduce modular invariant loop amplitudes. In this paper we show that the classical action is also riddled with gauge anomalies. Thus, the classical action is not really gauge invariant and fails as a quantum theory. The presence of gauge anomalies and the violation of modular invariance appear to be a disaster for the theory. Actually, this is a blessing in disguise. We show that by adding new non-polynomial terms to the action, we can simultaneously eliminate both the gauge anomalies and the modular-violating loop diagrams. We show this explicitly at the one loop level and also for an infinite class of p-puncture, genus-g amplitudes, making use of a series of non-trivial identities. The theory is thus an acceptable quantum theory. We comment on the origin of this strange link between local gauge anomalies and global modular invariance. (orig.).

  18. Autonomous journaling response using data model LUTS

    Science.gov (United States)

    Jaenisch, Holger; Handley, James; Albritton, Nathaniel; Whitener, David; Burnett, Randel; Caspers, Robert; Moren, Stephen; Alexander, Thomas; Maddox, William, III; Albritton, William, Jr.

    2009-04-01

    Matching journal entries to appropriate context responses can be a daunting problem, especially when there are no salient keyword matches between the entry and the proposed library of appropriate responses. We examine a real-world application for matching interactive journaling requests for guidance to an a priori established archive of sufficient multimedia responses. We show the analysis required to enable a Data Model based algorithm to group journaling entries according to intrinsic context information and type. We demonstrate a new lookup table (LUT) classifier that exploits all available data in LUT form.

  19. Neuropeptides in Lower Urinary Tract (LUT) Function

    Science.gov (United States)

    Arms, Lauren; Vizzard, Margaret A.

    2014-01-01

    Numerous neuropeptide/receptor systems including vasoactive intestinal polypeptide, pituitary adenylate cyclase-activating polypeptide, calcitonin gene-related peptide, substance P, neurokinin A, bradykinin, and endothelin-1 are expressed in the lower urinary tract (LUT) in both neural and non-neural (e.g., urothelium) components. LUT neuropeptide immunoreactivity is present in afferent and autonomic efferent neurons innervating the bladder and urethra and in the urothelium of the urinary bladder. Neuropeptides have tissue-specific distributions and functions in the LUT and exhibit neuroplastic changes in expression and function with LUT dysfunction following neural injury, inflammation and disease. LUT dysfunction with abnormal voiding including urinary urgency, increased voiding frequency, nocturia, urinary incontinence and pain may reflect a change in the balance of neuropeptides in bladder reflex pathways. LUT neuropeptide/receptor systems may represent potential targets for therapeutic intervention. PMID:21290237

  20. Tree-structured method for LUT inverse halftoning and for image halftoning.

    Science.gov (United States)

    Mese, Murat; Vaidyanathan, P P

    2002-01-01

    Recently, the authors proposed a Look Up Table (LUT) based method for inverse halftoning of images. The LUT for inverse halftoning is obtained from the histogram gathered from a few sample halftone images and corresponding original images. Many of the entries in the LUT are unused because the corresponding binary patterns hardly occur in commonly encountered halftones. These are called nonexistent patterns. In this paper, we propose a tree structure which will reduce the storage requirements of an LUT by avoiding nonexistent patterns. We will demonstrate the performance on error diffused images and ordered dither images. Then, we introduce LUT based halftoning and tree-structured LUT (TLUT) halftoning. Even though TLUT method is more complex than LUT halftoning, it produces better halftones and requires much less storage than LUT halftoning.We will demonstrate how error diffusion characteristics can be achieved with this method. Afterwards, our algorithm will bet rained on halftones obtained by Direct Binary Search (DBS).The complexity of TLUT halftoning is higher than error diffusion algorithm but much lower than DBS algorithm. Also, the halftone quality of TLUT halftoning increases if the size of TLUT gets bigger. Thus, halftone image quality between error diffusion and DBS will be achieved depending on the size of tree-structure in TLUT algorithm.

  1. A Non-Polynomial Gravity Formulation for Loop Quantum Cosmology Bounce

    Directory of Open Access Journals (Sweden)

    Stefano Chinaglia

    2017-09-01

    Full Text Available Recently the so-called mimetic gravity approach has been used to obtain corrections to the Friedmann equation of General Relativity similar to the ones present in loop quantum cosmology. In this paper, we propose an alternative way to derive this modified Friedmann equation via the so-called non-polynomial gravity approach, which consists of adding geometric non-polynomial higher derivative terms to Hilbert–Einstein action, which are nonetheless polynomials and lead to a second-order differential equation in Friedmann–Lemaître–Robertson–Walker space-times. Our explicit action turns out to be a realization of the Helling proposal of effective action with an infinite number of terms. The model is also investigated in the presence of a non-vanishing cosmological constant, and a new exact bounce solution is found and studied.

  2. Considering a non-polynomial basis for local kernel regression problem

    Science.gov (United States)

    Silalahi, Divo Dharma; Midi, Habshah

    2017-01-01

    A common used as solution for local kernel nonparametric regression problem is given using polynomial regression. In this study, we demonstrated the estimator and properties using maximum likelihood estimator for a non-polynomial basis such B-spline to replacing the polynomial basis. This estimator allows for flexibility in the selection of a bandwidth and a knot. The best estimator was selected by finding an optimal bandwidth and knot through minimizing the famous generalized validation function.

  3. Viin, Hitler ja Oskar Luts / Vaapo Vaher

    Index Scriptorium Estoniae

    Vaher, Vaapo, 1945-

    2007-01-01

    Tutvustus: Saarikoski, Pentti. On või ei ole ; Euroopa serval ; Bretagne'i päevik / soome keelest tõlkinud Piret Saluri. Tallinn : Varrak, 2007 ; Kull, Aivar. Oskar Luts : pildikesi kirjanikupõlvest. Tartu : Ilmamaa, 2007

  4. Neuropeptides in Lower Urinary Tract (LUT) Function

    OpenAIRE

    Arms, Lauren; Vizzard, Margaret A.

    2011-01-01

    Numerous neuropeptide/receptor systems including vasoactive intestinal polypeptide, pituitary adenylate cyclase-activating polypeptide, calcitonin gene-related peptide, substance P, neurokinin A, bradykinin, and endothelin-1 are expressed in the lower urinary tract (LUT) in both neural and non-neural (e.g., urothelium) components. LUT neuropeptide immunoreactivity is present in afferent and autonomic efferent neurons innervating the bladder and urethra and in the urothelium of the urinary bla...

  5. Non-polynomial closed string field theory: Loops and conformal maps

    Energy Technology Data Exchange (ETDEWEB)

    Hua, L. (New York Univ., NY (USA). Dept. of Physics); Kaku, Michio (Institute for Advanced Study, Princeton, NJ (USA))

    1990-11-01

    Recently, we proposed the complete classical action for the non-polynomial closed string field theory, which successfully reproduced all closed string tree amplitudes. (The action was simultaneously proposed by the Kyoto group). In this paper, we analyze the structure of the theory. We (a) compute the explicit conformal map for all g-loop, p-puncture diagrams, (b) compute all one-loop, two-puncture maps in terms of hyper-elliptic functions, and (c) analyze their modular structure. We analyze, but do not resolve, the question of modular invariance. (orig.).

  6. Hybrid independent component analysis by adaptive LUT activation function neurons.

    Science.gov (United States)

    Fiori, Simone

    2002-01-01

    The aim of this paper is to present an efficient implementation of unsupervised adaptive-activation function neurons dedicated to one-dimensional probability density estimation, with application to independent component analysis. The proposed implementation is a computationally light improvement to adaptive pseudo-polynomial neurons, recently presented in Fiori, S. (2000a). Blind signal processing by the adaptive activation function neurons. Neural Networks, 13(6), 597-611, and is based upon the concept of 'look-up table' (LUT) neurons.

  7. Constipation and LUTS: how do they affect each other?

    Directory of Open Access Journals (Sweden)

    Marcio A. Averbeck

    2011-02-01

    Full Text Available CONTEXT: Urinary bladder and rectum share a common embryological origin. Their autonomic and somatic innervations have close similarities. Moreover, the close proximity of these two organ systems could suggest that dysfunction in one may influence, also mechanically, the function of the other. Therefore, it is not surprising that defecation problems and lower urinary tract symptoms (LUTS occur together, as reported in the literature. OBJECTIVE: To study the relationship between constipation and LUTS focusing on what is evidence-based. EVIDENCE ACQUISITION: We searched the Medical Literature Analysis and Retrieval System Online (MEDLINE database in February 2010 to retrieve English language studies (from 1997 to 2009 and the 2005, 2006 and 2007 abstract volumes of the European Association of Urology (EAU, American Urological Association (AUA and International Continence Society (ICS. EVIDENCE SYNTHESIS: We present the findings according to the studied population in four groups: (a children, (b middle-aged women, (c elderly and (d neuropathic patients. Most published studies that correlated rectal and bladder dysfunction were carried out in children or in young women. On the other hand, there are few studies regarding the association between constipation and LUTS in the elderly and in neuropathic patients. CONCLUSIONS: Several studies in children documented that constipation is linked to urinary tract problems, including infections, enuresis, vesicoureteral reflux and upper renal tract dilatation. The underlying pathophysiology of these findings has not yet been clearly defined. Studies in middle-aged women also support a high prevalence of constipation among patients suffering from urinary tract dysfunction. Furthermore, an association between constipation and urinary incontinence, as well as between constipation and pelvic organ prolapse, has been suggested. The only prospective study in constipated elderly with concomitant LUTS demonstrates

  8. Exploring Shared SRAM Tables in FPGAs for Larger LUTs and Higher Degree of Sharing

    Directory of Open Access Journals (Sweden)

    Ali Asghar

    2017-01-01

    Full Text Available In modern SRAM based Field Programmable Gate Arrays, a Look-Up Table (LUT is the principal constituent logic element which can realize every possible Boolean function. However, this flexibility of LUTs comes with a heavy area penalty. A part of this area overhead comes from the increased amount of configuration memory which rises exponentially as the LUT size increases. In this paper, we first present a detailed analysis of a previously proposed FPGA architecture which allows sharing of LUTs memory (SRAM tables among NPN-equivalent functions, to reduce the area as well as the number of configuration bits. We then propose several methods to improve the existing architecture. A new clustering technique has been proposed which packs NPN-equivalent functions together inside a Configurable Logic Block (CLB. We also make use of a recently proposed high performance Boolean matching algorithm to perform NPN classification. To enhance area savings further, we evaluate the feasibility of more than two LUTs sharing the same SRAM table. Consequently, this work explores the SRAM table sharing approach for a range of LUT sizes (4–7, while varying the cluster sizes (4–16. Experimental results on MCNC benchmark circuits set show an overall area reduction of ~7% while maintaining the same critical path delay.

  9. Parallel inverse halftoning by look-up table (LUT) partitioning

    International Nuclear Information System (INIS)

    Siddiqui, Umair F.; Sait, Sadiq M.

    2008-01-01

    The Look-Up Table (LUT) method for inverse halftoning is not only computation-less and fast but yields good results. The method employs a single LUT that is stored in a ROM and contains pre-computed contone (gray level) values for inverse halftone operation. This paper proposes an algorithm that can perform parallel inverse halftone operations by partitioning the single LUT into N smaller look-Up Tables (s- LUTs). Therefore, up to k (k<-N) pixels can be concurrently fetched from the halftone image and their contone values fetched concurrently from separate s- LUT. Obviously, this parallelization increases the speed of inverse halftoning by upto k times. In this proposed method, the total entries in all s- LUTs remain equal to the entries in the single LUT of the serial LUT method. Some degradation in image quality is also possible due to pixel loss during fetching. This is because some other contone value is being fetched from that s-LUT. The complete implementation of the algorithm requires two CPLDs (Complex Programmable Logic Devices) for the computational portion, external content addressable memories (CAM) and static RAMs to store s-LUTs. (author)

  10. Is testosterone important in LUT function in men and women? ICI-RS 2015.

    Science.gov (United States)

    Badawi, Jasmin Katrin; Bosch, Ruud; Djurhuus, Jens Christian; Hanna-Mitchell, Ann T

    2017-04-01

    This review article is a collaborative report based upon the Authors' presentations and Group discussion on the role of testosterone (T) in the male and female lower urinary tract (LUT) which took place at the 6th International Consultation on Incontinence Research Society's (ICI-RS) annual meeting, in Bristol, UK (September 8-10, 2015). It comprises overviews and opinions on both the current state of knowledge of the role of T in LUT function and dysfunction in both sexes. Results from animal studies suggest that T treatment may be beneficial for disorders of the LUT in women including urinary incontinence and pelvic organ prolapse. The need for clinical studies to evaluate the effect of T treatment in peri- and post-menopausal women, taking into account the type of applied androgen, the application form, timing and dosage, is especially emphasized. In males, findings on the impact of T on the male external urethral sphincter underscores that there is still much to learn about its role in male LUT physiology. The important topic of the use of T therapy in the treatment of enuresis in the young, both sexes, is also discussed. The importance of understanding the steroidogenic pathways linking T with estradiol is discussed as being of paramount importance in researching the unique actions of T in the LUT. The overall conclusion is that further research into the role of T in LUT function and dysfunction across genders and age groups (young to old) is extremely important. Neurourol. Urodynam. 36:859-862, 2017. © 2017 Wiley Periodicals, Inc. © 2017 Wiley Periodicals, Inc.

  11. Fast CGH computation using S-LUT on GPU.

    Science.gov (United States)

    Pan, Yuechao; Xu, Xuewu; Solanki, Sanjeev; Liang, Xinan; Tanjung, Ridwan Bin Adrian; Tan, Chiwei; Chong, Tow-Chong

    2009-10-12

    In computation of full-parallax computer-generated hologram (CGH), balance between speed and memory usage is always the core of algorithm development. To solve the speed problem of coherent ray trace (CRT) algorithm and memory problem of look-up table (LUT) algorithm without sacrificing reconstructed object quality, we develop a novel algorithm with split look-up tables (S-LUT) and implement it on graphics processing unit (GPU). Our results show that S-LUT on GPU has the fastest speed among all the algorithms investigated in this paper, while it still maintaining low memory usage. We also demonstrate high quality objects reconstructed from CGHs computed with S-LUT on GPU. The GPU implementation of our new algorithm may enable real-time and interactive holographic 3D display in the future.

  12. LUT observations of the mass-transferring binary AI Dra

    Science.gov (United States)

    Liao, Wenping; Qian, Shengbang; Li, Linjia; Zhou, Xiao; Zhao, Ergang; Liu, Nianping

    2016-06-01

    Complete UV band light curve of the eclipsing binary AI Dra was observed with the Lunar-based Ultraviolet Telescope (LUT) in October 2014. It is very useful to adopt this continuous and uninterrupted light curve to determine physical and orbital parameters of the binary system. Photometric solutions of the spot model are obtained by using the W-D (Wilson and Devinney) method. It is confirmed that AI Dra is a semi-detached binary with secondary component filling its critical Roche lobe, which indicates that a mass transfer from the secondary component to the primary one should happen. Orbital period analysis based on all available eclipse times suggests a secular period increase and two cyclic variations. The secular period increase was interpreted by mass transfer from the secondary component to the primary one at a rate of 4.12 ×10^{-8}M_{⊙}/yr, which is in agreement with the photometric solutions. Two cyclic oscillations were due to light travel-time effect (LTTE) via the presence of two cool stellar companions in a near 2:1 mean-motion resonance. Both photometric solutions and orbital period analysis confirm that AI Dra is a mass-transferring binary, the massive primary is filling 69 % of its critical Roche lobe. After the primary evolves to fill the critical Roche lobe, the mass transfer will be reversed and the binary will evolve into a contact configuration.

  13. Automated FMV SMART camera using dynamically updated LUTs

    Science.gov (United States)

    Jaenisch, Holger; Handley, James

    2012-06-01

    We present a method for segmenting FMV video streams to dynamically extract scene recognition and change detection information using simple on-the-fly statistics. We show how the video scene can be segmented enabling sub-frame statistical characterization. The features are written into dynamic look-up tables (LUTs) in real-time. Behavior recognition occurs by testing if the newly observed scene statistics have already been recorded in the table. The features in the LUT can later be used to derive predictive behavior Data Models. We demonstrate results of our approach on various types of FMV and micro UAV video data streams.

  14. B-LUT: Fast and low memory B-spline image interpolation.

    Science.gov (United States)

    Sarrut, David; Vandemeulebroucke, Jef

    2010-08-01

    We propose a fast alternative to B-splines in image processing based on an approximate calculation using precomputed B-spline weights. During B-spline indirect transformation, these weights are efficiently retrieved in a nearest-neighbor fashion from a look-up table, greatly reducing overall computation time. Depending on the application, calculating a B-spline using a look-up table, called B-LUT, will result in an exact or approximate B-spline calculation. In case of the latter the obtained accuracy can be controlled by the user. The method is applicable to a wide range of B-spline applications and has very low memory requirements compared to other proposed accelerations. The performance of the proposed B-LUTs was compared to conventional B-splines as implemented in the popular ITK toolkit for the general case of image intensity interpolation. Experiments illustrated that highly accurate B-spline approximation can be obtained all while computation time is reduced with a factor of 5-6. The B-LUT source code, compatible with the ITK toolkit, has been made freely available to the community. 2009 Elsevier Ireland Ltd. All rights reserved.

  15. LUTS and sexual dysfunction : Implications for management of BPH

    NARCIS (Netherlands)

    van Moorselaar, J

    2003-01-01

    Objectives: To summarise currently available data describing the impact of surgical and pharmacological treatments for lower urinary tract symptoms (LUTS) on male sexual function. To compare treatment options and outline implications for the management of this patient group. Methods: Key published

  16. Prevalence of lower urinary tract symptoms (LUTS) in stroke patients: a cross-sectional, clinical survey

    DEFF Research Database (Denmark)

    Tibaek, Sigrid; Gard, Gunvor; Klarskov, Peter

    2008-01-01

    The aims of this study were primarily to investigate the prevalence, severity and impact on daily life of Lower Urinary Tract Symptoms (LUTS) in a clinical sample of stroke patients and secondly to identify factors associated with LUTS.......The aims of this study were primarily to investigate the prevalence, severity and impact on daily life of Lower Urinary Tract Symptoms (LUTS) in a clinical sample of stroke patients and secondly to identify factors associated with LUTS....

  17. Rationale for the study methods and design of the epidemiology of lower urinary tract symptoms (EpiLUTS) study.

    Science.gov (United States)

    Coyne, Karin S; Sexton, Chris C; Kopp, Zoe S; Luks, Samantha; Gross, Ashley; Irwin, Debra; Milsom, Ian

    2009-08-01

    Accurate prevalence data on illnesses are of paramount importance for medical decision-making, healthcare planning, and the appropriate allocation of healthcare resources. When assessing the prevalence of any illness or health condition, it is important to base prevalence data on an assessment of the general population at large and not on selected groups of the population. Previous estimates of the prevalence of lower urinary tract symptoms (LUTS) have used postal surveys, telephone and in-person interviews, and, more recently, the Internet. Determining the mode of data collection for a research study is dictated by several factors, including target population, topic sensitivity, timeliness, and available resources. The purpose of this report is to document the rationale for conducting a large prevalence study of LUTS and its impact on patient outcomes using Internet- or Web-based surveys. A brief overview of important survey considerations is provided, and previous survey methods used in assessing the prevalence of LUTS discussed. The research objectives and sampling approach used in the EpiLUTS study in the USA, the UK and Sweden are presented, with a discussion of the advantages and disadvantages of this Internet-based sampling approach in relation to other epidemiological methods.

  18. Reduced-Area Constant-Coefficient and Multiple-Constant Multipliers for Xilinx FPGAs with 6-Input LUTs

    Directory of Open Access Journals (Sweden)

    E. George Walters

    2017-11-01

    Full Text Available Multiplication by a constant is a common operation for many signal, image, and video processing applications that are implemented in field-programmable gate arrays (FPGAs. Constant-coefficient multipliers (KCMs are often implemented in the logic fabric using lookup tables (LUTs, reserving embedded hard multipliers for general-purpose multiplication. This paper describes a two-operand addition circuit from previous work and shows how it can be used to generate and add pre-computed partial products to implement KCMs. A novel method for pre-computing partial products for KCMs with a negative constant is also presented. These KCMs are then extended to have two to eight coefficients that may be selected by a control signal at runtime to implement time-multiplexed multiple-constant multiplication. Synthesis results show that proposed pipelined KCMs use 27.4% fewer LUTs on average and have a median LUT-delay product that is 12% lower than comparable LogiCORE IP KCMs. Proposed pipelined KCMs with two to eight selectable coefficients use 46% to 70% fewer LUTs than the best LogiCORE IP based alternative and most are faster than using a LogiCORE IP multiplier with a coefficient lookup function. They also outperform the state-of-the-art in the literature, using 22% to 57% fewer slices than the smallest pipelined adder graph (PAG fusion designs and operate 7% to 30% faster than the fastest PAG fusion designs for the same operand size and number of selectable coefficients. For KCMs and KCMs with selectable coefficients of a given operand size, the placement and routing of LUTs remains the same for all positive and negative constant values, which is advantageous for runtime partial reconfiguration.

  19. Correlation between Lower Urinary Tract Symptoms (LUTS) and sexual function in benign prostatic hyperplasia: impact of treatment of LUTS on sexual function.

    Science.gov (United States)

    Jung, Jae Hun; Jae, Sung Uk; Kam, Sung Chul; Hyun, Jae Seog

    2009-08-01

    Although many reports have shown a relationship between lower urinary tract symptoms (LUTS) and sexual function (SF), it is not known which symptom(s) among LUTS should be treated to improve SF. Thus, the aim of this study was to investigate correlations between LUTS and SF and to determine which symptom(s) should be improved to increase SF. The correlation between the severity of LUTS and erectile dysfunction (ED) was investigated, and changes in LUTS were compared and analyzed to determine which symptom(s) should be eliminated to improve SF. The correlation between LUTS and SF was investigated in 365 men (62.04 +/- 8.26) with benign prostatic hyperplasia. To measure the severity of the LUTS and ED, the International Prostate Symptom Score (IPSS), frequency of nocturia, uroflowmetry, residual urine, transrectal ultrasonography, and the International Index of Erectile Function (IIEF)-5 were performed at the first visit. After 3 months of treatment with alpha-blockers (n = 304), they were assessed again to evaluate the effectiveness of the treatment. All parameters of LUTS (IPSS, age, residual urine, uroflow rate, and nocturia) except prostate volume correlated significantly with the total and each domain of IIEF-5 (P < 0.01). After 3 months, the changed scores in the IPSS-VD domain and IPSS-quality of life (QoL) correlated significantly with the improvement in total IIEF-5 and the domains of IIEF-5 (P < 0.05). The changed rates of the mean uroflow correlated significantly with the improvement in total IIEF-5 and the EF domain (P < 0.05). Among the LUTS parameters, improvement in the IPSS-VD domain, IPSS-QoL, and mean uroflow significantly correlated with an increased score in the IIEF-5 EF domain. Thus, it is expected that the improvement of voiding symptoms and uroflow will be associated with the improvement in erectile function.

  20. Does psychological stress affect LUT function in children? ICI-RS 2011.

    Science.gov (United States)

    von Gontard, Alexander

    2012-03-01

    Psychological factors and LUTS are closely associated in children. 20-40% of children with nocturnal enuresis (NE) and 30-40% with daytime urinary incontinence (DUI) have a clinical psychiatric disorder, many more are distressed. The associations are complex and differ for each individual subtype of disorder, as both genetic and environmental factors can interact. The aim of this paper is to provide an overview and discuss possible causal associations. Relevant studies are reviewed--preferably with population-based, representative results. Four basic associations are possible. Psychological symptoms and disorders can (1) be a consequence of LUTS and NE/DUI; (2) They can be induced by them; (3) Both can be due to common, shared etiological factors; and (4) They can co-occur by chance without causality. Due to these complex associations, a descriptive approach is endorsed. Both the subtype of NE/DUI and possible psychological symptoms and disorders need to be identified--possible causal relationships can be analyzed in a second step. Screening for psychological symptoms with parental behavioral questionnaires in all settings is recommended, as well as counselling and treatment if indicated. Copyright © 2012 Wiley Periodicals, Inc.

  1. Rock stress measurements using the LUT-Gauge overcoring method

    International Nuclear Information System (INIS)

    Leijon, B.

    1988-04-01

    With overcoring techniques, rock stresses are determined indirectly from measurements of the dimensional changes of a borehole, occurring when the rock volume surrounding the hole is isolated from the stresses in the host rock. This thesis describes the development and application of an overcoring technique. The key-component of the instrumentation that has been developed is a triaxial borehole strain cell, referred to as the LUT-Gauge. Laboratory tests were conducted to evaluate the performance of the instrumentation. Special emphasis was given to determining temperature sensitivity of the measuring system since this was identified as a potential source of measurement error. Results indicated good instrument reliability and that the measurement error due to temperature variations typically experienced under field conditions is ± 1 MPa or less. The technique was also evaluated by a series of field tests. Comparison of the results obtained by the different methods showed satisfactory agreement. Analysis of the comprehensive field data collected showed that the confidence that can be attached to an overcoring test is largely governed by the mechanical characteristics of the overcored specimen. Expressed as the standard deviation of the mean stress magnitude, the scatter obtained from repeated testing within a borehole section of about 10 m in length, is found to be ± 4 MPa or less. Rock engineering investigations typically refer to a scale of hundreds of metres or more. This study has demonstrated the existence of significant variations of the stress field on this scale. These variations thus impose difficulties in the application of stress data to the analysis of problems in rock engineering, since the pointwise results obtained from stress measurements cannot be extrapolated with good confidence. (30 refs.) (author)

  2. In a free healthcare system, why do men not consult for lower urinary tract symptoms (LUTS?

    Directory of Open Access Journals (Sweden)

    lai U Chong

    2011-06-01

    Full Text Available Abstract Background The prevalence of lower urinary tract symptoms (LUTS varies among different populations but the rate of seeking medical advice is consistently low. Little is known about the reasons for this low rate. In the city of Macau, China, primary healthcare is free and easily accessible to all citizens. We aim to study the patients' rate of consulting for LUTS and their reasons for not consulting under a free healthcare system. Method A convenience sample of 549 male patients aged 40-85 years in a government health centre filled in the International Prostate Symptoms Scale (IPSS questionnaire. They were also asked if they had consulted doctors for LUTS, and if not, why not. Result Of the whole sample, 64 men (11.7% had ever consulted doctors for LUTS. Of 145 with moderate to severe LUTS, 35 (24.1% consulted. Of 73 who were dissatisfied with their quality of life, 22 (30.1% consulted. Regarding the symptoms as normal or not problematic was the main reason for not consulting. Advancing age and duration of symptoms were the significant factors for consulting. Conclusion Primary care doctors could help many of LUTS patients by sensitively initiating the discussion when these patients consult for other problems.

  3. Performance of a single lookup table (LUT) for displaying chest CT images.

    Science.gov (United States)

    John, Ajo; Huda, Walter; Scalzetti, Ernest M; Ogden, Kent M; Roskopf, Marsha L

    2004-06-01

    To evaluate the ability to view mediastinal and lung information on one window setting by processing images with a bilinear lookup table (LUT). Chest computed tomography (CT) studies were obtained from 32 consecutive adult patient studies, which included 7 iodine contrast studies. From each CT examination, four sections were selected containing the suprasternal notch, carina, right inferior pulmonary vein, and the dome of the lower hemidiaphragm. Each image was processed with a bilinear LUT in addition to the lung setting (window width 1500 and window level -500) and mediastinal setting (window width 450 and window level 50) normally used. Seven radiologists compared the quality of the bilinear LUT with the corresponding lung and mediastinum display settings. A five-point scale was used to assess image quality, with a score of 5 being equivalent to the corresponding lung (or mediastinum) display, 3 being acceptable, and 1 being unacceptable. The average score of the bilinear LUT for all images and readers was 3.90 +/- 0.93 for lung information and 3.17 +/- 1.00 for mediastinum information. Use of the bilinear LUT resulted in unacceptable images in 0.3% cases for lung information and 5.9% for mediastinum information. Chest CT images that contained iodinated contrast resulted in a higher score than those obtained without contrast, but these differences did not achieve statistical significance. Use of a bilinear LUT has the potential to significantly improve operational efficiency with acceptable image quality for most chest CT images.

  4. Hyperglycemia and insulin resistance and the risk of BPH/LUTS: an update of recent literature.

    Science.gov (United States)

    Breyer, Benjamin N; Sarma, Aruna V

    2014-12-01

    Benign prostatic hyperplasia (BPH) and associated lower urinary tract symptoms (LUTS) are highly prevalent in older men and represent a substantial challenge to public health. Increasing epidemiologic evidence suggests that diabetes and associated hyperglycemia and insulin resistance significantly increase the risks of BPH and LUTS. Plausible pathophysiologic mechanisms to explain these associations include increased sympathetic tone, stimulation of prostate growth by insulin and related trophic factors, alterations in sex steroid hormone expression, and induction of systemic inflammation and oxidative stress. This article presents a comprehensive update of the current understanding of clinical and epidemiologic research on diabetes and BPH/LUTS, describes hypothesized pathophysiologic mechanisms linking these conditions, and recommends future directions for research.

  5. Effects of prostatic inflammation on LUTS and alpha blocker treatment outcomes

    Directory of Open Access Journals (Sweden)

    Ha Na Lee

    2014-06-01

    Full Text Available Purpose To evaluate the association between prostatic inflammation and lower urinary tract symptoms (LUTS, and to identify the effects of prostatic inflammation on the treatment with an alpha blocker. Materials and Methods 111 Participants who were aged ≥ 50 years, the presence of LUTS (maximal flow rate < 20 m/s, IPSS ≥ 11, and an elevated PSA level (3-20ng/mL were treated with tamsulosin 0.2mg once daily for 3 months after prostate biopsies. Prostatic inflammation was scored as none (0, mild (I, moderate (II, or marked (III. LUTS parameters including urine flow rates, IPSS, PSA, and prostate volume were evaluated. Results Inflammation grading resulted in 25, 60, and 26 patients that were grade 0, I, and II, respectively. Lower grade inflammation was related to higher urine flow rate at baseline. Patients with higher inflammation grades had larger prostate volumes, larger total and transitional zone volumes, and higher PSA levels. Overall, urine flow rates and residual urine volume were improved after 3 months of alpha blocker therapy. Eighty percent of patients with grade 0 inflammation, 73% of patients with grade I inflammation, and 92.3% of patients with grade II inflammation showed improvement of LUTS after treatment. Longer duration of treatment was related to a decreased chance of improvement of LUTS. Patients with increased IPSS voiding subscales could be predictive of improvement of LUTS. Conclusions Patients with high grade inflammation had lower flow rates and higher prostatic volumes than patients with low grade inflammation. Inflammation grade did not affect the outcomes of alpha blocker treatment.

  6. Do lower urinary tract symptoms (LUTS predispose the individuals to more admissions in Taiwanese women? – A preliminary report

    Directory of Open Access Journals (Sweden)

    Ming-Ping Wu

    2012-09-01

    Conclusions: The preliminary data showed a higher risk of admissions and operations among women with LUTS. The possible explanations included: more co-morbidities, a poorer quality of life, a lower threshold of admission, or potential early symptoms of either medical or surgical conditions. This highlights a broad understanding of multiple and overlapping systems in LUTS.

  7. Association between socioeconomic status (SES) and lower urinary tract symptom (LUTS) severity among black and white men.

    Science.gov (United States)

    Fowke, Jay H; Munro, Heather; Signorello, Lisa B; Blot, William J; Penson, David F

    2011-11-01

    A higher prevalence of moderate or severe lower urinary tract symptoms (LUTS) has been reported among African Americans, but the separate effects of race and socioeconomic status (SES) on LUTS severity are unclear. We investigated the roles of education, income, marital status, and source of health insurance on LUTS reporting among black and white U.S. men. A prospective cohort within the Southern Community Cohort Study The International Prostate Symptom Score (IPSS) was completed during follow-up by 2488 white men and 4188 black men. Multivariable linear and logistic regression methods were used to compare IPSS scores and LUTS severity by race and SES after adjusting for age, duration of follow-up, benign prostatic hyperplasia (BPH) treatment, source of recruitment, smoking status, BMI, mode of follow-up ascertainment, and prior diagnosis of hypertension, diabetes, or hypercholesterolemia. Overall IPSS scores and the prevalence of moderate/severe LUTS were not significantly associated with race. Instead, higher IPSS scores were significantly associated (p Education was also marginally associated with IPSS scores (p = 0.06) among black men. Furthermore, moderate/severe LUTS onset was significantly associated with a household income less than $15,000/year (OR = 1.56 (1.23, 1.96)) and having private health insurance (OR = 0.79 (0.67, 0.93)). Social or behavioral factors related to SES affect LUTS reporting, and suggests a potential affect on BPH diagnosis.

  8. VizieR Online Data Catalog: LUT Survey Catalogue Data Release 1 (Men+, 2016)

    Science.gov (United States)

    Meng, X.-M.; Han, X.-H.; Wei, J.-Y.; Wang, J.; Cao, L.; Qiu, Y.-L.; Wu, C.; Deng, J.-S.; Cai, H.-B.; Xin, L.-P.

    2016-06-01

    In the first release version, the catalogue provides high confidence sources which have been cross-identified with Tycho-2 catalogue. The catalogue provides equatorial coordinate positions, magnitudes measured by aperture photometry and PSF photometry, aperture apertures, and the corresponding Tycho-2 records of the stars detected by LUT survey program. No aperture correction or extinction correction was applied on these measurements. The catalogue is in IPAC table format. (1 data file).

  9. Granitoid, upper Cretaceous, contamination, Lut block, Kaje, Iran

    Directory of Open Access Journals (Sweden)

    Ali Najafi

    2013-04-01

    Full Text Available Granitoid rocks of Kaje area, northwest Ferdows, with the composition of diorite, monzodiorite, monzonite, monzogranite, syenogranite and granite, with calk-alkaline and high potassium affinities, have trace and rare earth element geochemical characteristics similar to those from subduction zones, belonging to I-type granitoid rocks. Most of these rocks are oxidized (magnetite series, while one suite is reduced (ilmenite series showing S-type characteristics. Three samples of granitoid rocks were dated using zircon U-Pb method. Granitoid rocks belong to upper Cretaceous epoch. A granite porphyry with the age of 84.2±1.3 Ma (Santonian stage is the oldest body followed by a biotite hornblende monzogranite of 70.8±1.4 Ma (Campanian stage and the youngest body is a hornblende quartz diorite with the age of 67.9±1 Ma (Maastrichtian stage. Initial 87Sr/86Sr and 143Nd/144Nd ratios as well as єNdi for the granite porphyry are 0.708080, 0.512129 and -7.81, respectively. Those ratios for the biotite hornblende monzogranite are 0.706125, 0.512416 and -2.55, respectively; and for the hornblende quartz diorite are 0.707491, 0.512221 and -6.43, respectively. Based on geochemical and isotopic data, three types of granitoid can be distinguished having three different sources and characteristics. The first and oldest one is the granite porphyry of continental crust source, the second one is the monzonite and monzodiorite and the third group is the diorite of mantle source which originated and emplaced in different depths with various rates of contamination. These rocks have higher (87Sr/86Sri values compared with the other upper Cretaceous rocks in Bazman and Gazu areas, and lower (87Sr/86Sri values in comparison with the Bejestan rocks. Petrochemistry of the granite group is similar to the Bejestan rocks, but these are 10 m.y. younger and the other two groups have similar geochemistry and source to Bazman and Gazu with more contamination by the crust.

  10. Balanced Scorecardin soveltuvuus johtamisen työkaluna Suomen ev.-lut. seurakuntaan : case: Hollolan seurakunta

    OpenAIRE

    Pyyhtiä, Jaana

    2011-01-01

    Tämä opinnäytetyö käsittelee Balanced Scorecardin soveltuvuutta johtamisen työkaluksi Suomen ev.-lut. kirkon seurakuntaan. Case-seurakuntana tässä kvalitatiivisessa tutkimuksessa on Hollolan seurakunta. Tietolähteinä on käytetty kirjallista ja sähköistä materiaalia sekä kyselylomakkeella kerättyjä vastauksia. Tämän opinnäytetyön tavoitteena on ensinnäkin tarkastella, miten Balanced Scorecardia voitaisiin hyödyntää seurakunnan strategiaprosesseissa ja erityisesti strategian jalkauttamisessa. T...

  11. In Bacillus subtilis LutR is part of the global complex regulatory network governing the adaptation to the transition from exponential growth to stationary phase

    NARCIS (Netherlands)

    İrigül-Sönmez, Öykü; Köroğlu, Türkan E.; Öztürk, Büşra; Kovács, Ákos T.; Kuipers, Oscar P.; Yazgan-Karataş, Ayten; Zuber, P.

    2014-01-01

    The lutR gene, encoding a product resembling a GntR-family transcriptional regulator, has previously been identified as a gene required for the production of the dipeptide antibiotic bacilysin in Bacillus subtilis. To understand the broader regulatory roles of LutR in B. subtilis, we studied the

  12. Synthesis, Characterization, and Reactivity of Group 12 Metal Thiocarboxylates, M(SOCR)(2)Lut(2) [M = Cd, Zn; R = CH(3), C(CH(3))(3); Lut = 3,5-Dimethylpyridine (Lutidine)].

    Science.gov (United States)

    Nyman, May D.; Hampden-Smith, Mark J.; Duesler, Eileen N.

    1997-05-07

    A series of group 12 metal thiocarboxylate species, M(SOCR)(2)Lut(2) [M = Cd, Zn; R = CH(3), C(CH(3))(3); Lut = 3,5-dimethylpyridine (lutidine)], were synthesized to investigate their potential to act as precursors for the formation of metal sulfide materials. These species were expected to undergo thiocarboxylic anhydride elimination to give stoichiometric metal sulfides and remove the organic supporting ligands cleanly. These species were characterized by (1)H, (13)C, and (where appropriate) (113)Cd NMR spectroscopies, TGA, elemental analysis, and single-crystal X-ray diffraction. The spectroscopic and analytical data were consistent with the formulas identified above, and in the solid state the compounds are monomeric with approximate tetrahedral metal coordination environments and monodentate S-bond thiocarboxylate ligands. Crystal data for Cd(SOCCH(3))(2)Lut(2): crystallized in the triclinic space group P&onemacr;, with a = 8.267(1) Å, b = 9.467(1) Å, c = 14.087(1) Å, alpha = 94.04(1) degrees, beta = 91.49(1) degrees, gamma = 104.03(1) degrees, and Z = 2. Thermal decomposition of these compounds in the solid state or in solution resulted in formation of the corresponding metal sulfide at low temperatures, as seen by powder X-ray diffraction. Evidence for thiocarboxylic anhydride elimination was documented by NMR in solution phase reactions. The effects on thiocarboxylic anhydride elimination, resulting from varying M, R, or solvent media, were examined by heating NMR tube solutions of M(SOCR)(2)Lut(2) in pyridine or toluene. Heating toluene or pyridine solutions of Cd(SOCCH(3))(2)Lut(2) resulted in formation of nanocrystalline, sphalerite CdS, as determined by X-ray diffraction and TEM. These preliminary reactivity studies have revealed the great potential of this highly tailorable chemical system as precursors to group 12 metal sulfido species.

  13. Two-sided asymmetric subduction; implications for tectonomagmatic and metallogenic evolution of the Lut Block, eastern Iran

    Directory of Open Access Journals (Sweden)

    Reza Arjmandzadeh

    2011-04-01

    Full Text Available West directed subduction zones show common characteristics, such as low structural elevation, deep trench, steep slab and a conjugate back-arc basin that are opposite to those of the east directed subduction zones. The tectonomagmatic and metallogenic setting of the Lut Block is still a matter of debate and several hypotheses have been put forward. Despite some authors denying the influence of the operation of Benioff planes, the majority propose that it occurred beneath the Afghan Block, while others consider that oceanic lithosphere was dragged under the Lut Block. Cu-Au porphyry deposits seem to occur in an island arc geotectonic setting during the middle Eocene while Mo-bearing deposits are coincident with the crustal thickening during Oligocene. We introduce new trace element and isotope geochemical data for granitoids and structural evidences testifying the two-sided asymmetric subduction beneath both Afghan and Lut Blocks, with different rates of consumption of oceanic lithosphere. Keywords: asymmetric subduction, tectono-magmatic, Lut Block, Afghan Block, isotope geochemical data,

  14. Evaluation of a liquid urease test (LUT) for detection of Helicobacter pylori.

    Science.gov (United States)

    Montes, H; Salmen, S; Dolfo, W; Sotolongo, Asmiria; Petrosino, Pierina; Donis, J; Berrueta, Lisbeth

    2003-01-01

    The aim of our study was to develop a rapid diagnostic urease test to demonstrate the presence of Helicobacter pylori in the Endoscopy room. 200 consecutive patients referred to gastroscopy for different indications, were included in this study. One antral biopsy sample was obtained to be immersed in our test. The same sample was used for histological evaluation, considered to be the gold standard method for diagnose of Helicobacter pylori infection. 135 patients (67.5%) were found positives and 65 patients (32.5%) were negatives in our test. 128 patients (64%) showed Helicobacter pylori on histological examination. Our test showed a sensitivity of 91%, specificity of 88.1%, and positive and negative predictive values of 95% and 80% respectively. A remarkable correlation between density of Helicobacter pylori and reading time was also observed, where a high density of the bacteria reduced the reaction time in this liquid test. Furthermore, an overall accuracy of 90% was shown, which is comparable with other available commercial tests. LUT is easy to handle, cost effective and fast, with a high positive predictive value.

  15. Peran Volume Prostat Dan PSA Serum Untuk Deteksi Kanker Prostat Pada Penderita LUTS Dengan Colok Dubur Normal

    OpenAIRE

    Ariani, Devinta Tirza; Umbas, Rainy

    2011-01-01

    Penelitian ini bertujuan untuk mengetahui peran volume prostat danprostate specific antigen(PSA) serum > 4 ng/ml untuk mendeteksi angka kejadian dangradingkanker prostat pada penderitaLower Urinary Tract Symptoms(LUTS) dengan colok dubur normal yang dilakukan biopsi. Data yang dikumpulkan dari rekam medik penderitabenign prostate hyperplasia(BPH) dan kanker prostat di Klinik Khusus Urologi periode Januari 1995 sampai dengan Desember 2009 di departemen urologi Rumah Sakit Cipto Mangunkusumo da...

  16. ROPE Registry Project to Determine the Safety and Efficacy of Prostate Artery Embolisation (PAE) for Lower Urinary Tract Symptoms Secondary to Benign Prostatic Enlargement (LUTS BPE).

    Science.gov (United States)

    2016-08-03

    Lower Urinary Tract Symptoms Caused by Benign Prostatic Enlargement (LUTS BPE); Prostate Artery Embolisation (PAE); Transurethral Resection of the Prostate (TURP); Open Prostatectomy; Laser Enucleation or Ablation of the Prostate

  17. Osteopathic manipulative treatment (OMT) for lower urinary tract symptoms (LUTS) in women.

    Science.gov (United States)

    Franke, Helge; Hoesele, Klaus

    2013-01-01

    Because of its prevalence and impact on women's well-being, and its high financial costs, female LUTS is an important health problem that requires serious attention from health professionals. The objective of this review was to determine the clinical effects of osteopathic treatment on female lower urinary tract disorders. A systematic literature search was performed in May 2011 in the electronic databases Cochrane Central Register of Controlled Trials (CENTRAL), MEDLINE, EMBASE, CINAHL, PEDro, OSTMED-DR, OSTEOPATHIC WEBRESEARCH and databases of ongoing trials. A manual search in reference lists and a personal communication with experts in the field of osteopathy was also conducted to identify additional studies. Only randomized clinical studies (RCT) or controlled clinical studies (CCT) were included. Inclusion criteria of the participants were female, at least 18 years old and a diagnosed female urinary tract disorder. Exclusion criteria were neurologic disorders, tumors, urinary tract infections or antibiotic treatment, and pregnancy. Two review authors independently extracted the data of the studies using a standardized data extraction form. The updated Cochrane Risk of bias tool from 2011 was used to assess the methodological quality. The quantitative analysis shows a statistically significant and clinically relevant improvement when the osteopathic intervention was compared to an untreated group. Two studies which compare OMT with the pelvic floor muscle training as a reference treatment document almost the same therapeutic effect. The findings of this systematic review and meta-analysis are promising and encouraging to conduct larger, rigorous osteopathic intervention studies for female urination disorders. Future studies should compare the osteopathic treatment with established standard procedures in the control group. Copyright © 2012 Elsevier Ltd. All rights reserved.

  18. Geometric-kinematic characteristics of the main faults in the W-SW of the Lut Block (SE Iran)

    Science.gov (United States)

    Rashidi Boshrabadi, Ahmad; Khatib, Mohamad Mahdi; Raeesi, Mohamad; Mousavi, Seyed Morteza; Djamour, Yahya

    2018-03-01

    The area to the W-SW of the Lut Block in Iran has experienced numerous historical and recent destructive earthquakes. We examined a number of faults in this area that have high potential for generating destructive earthquakes. In this study a number of faults are introduced and named for the first time. These new faults are Takdar, Dehno, Suru, Hojat Abad, North Faryab, North Kahnoj, Heydarabad, Khatun Abad and South Faryab. For a group of previously known faults, their mechanism and geological offsets are investigated for the first time. This group of faults include East Nayband, West Nayband, Sardueiyeh, Dalfard, Khordum, South Jabal-e-Barez, and North Jabal-e-Barez. The N-S fault systems of Sabzevaran, Gowk, and Nayband induce slip on the E-W, NE-SW and NW-SE fault systems. The faulting patterns appear to preserve different stages of fault development. We investigated the distribution of active faults and the role that they play in accommodating tectonic strain in the SW-Lut. In the study area, the fault systems with en-echelon arrangement create structures such as restraining and releasing stepover, fault bend and pullapart basin. The main mechanism for fault growth in the region seems to be 'segment linkage of preexisting weaknesses' and also for a limited area through 'process zone'. Estimations are made for the likely magnitudes of separate or combined failure of the fault segments. Such magnitudes are used in hazard analysis of the region.

  19. Impact of combination therapy 5-alpha reductase inhibitors (5-ARI) plus alpha-blockers (AB) on erectile dysfunction and decrease of libido in patients with LUTS/BPH: a systematic review with meta-analysis.

    Science.gov (United States)

    Favilla, Vincenzo; Russo, Giorgio Ivan; Privitera, Salvatore; Castelli, Tommaso; Giardina, Raimondo; Calogero, Aldo E; Condorelli, Rosita A; La Vignera, Sandro; Cimino, Sebastiano; Morgia, Giuseppe

    2016-09-01

    Lower urinary tract symptoms (LUTS) secondary to benign prostatic obstruction (BPO) represent one of the most common clinical complaints in adult men. Several drugs used for LUTS/BPO may strongly affect sexual function and bother. The aim of this systematic review and meta-analysis was to evaluate the impact of combination therapy with alpha-blockers (AB), 5-alpha reductase inhibitors (5-ARI) on the risk of erectile dysfunction(ED) and libido alterations (LA) from randomized clinical trial (RCT). Based on the inclusion and exclusion criteria, five RCTs involving 6131 patients were included in the analysis. According to the analysis, the overall prevalence of ED and LA were significantly greater in the combination treatment group than in the AB group (7.93% versus 4.66%; OR 1.81; p < 0.0001 and 3.69% versus 2.36%; OR 1.58; p = 0.003, respectively). The combination therapy increased the risk of ED compared to monotherapy with 5-ARI (7.93% versus 6.47%; OR 1.25; p = 0.04) but not the risk of LA (3.51% versus 3.37; OR 1.03; p = 0.84). In our systematic meta-analysis, we demonstrated that combination therapy with ABs and 5-ARIs was associated with significantly higher risk of ED and LA compared with single monotherapy. Combination therapy showed similar risk of LA compared with 5-ARI monotherapy.

  20. A Single-Chip 64-Channel Ultrasound RX-Beamformer Including Analog Front-End and an LUT for Non-Uniform ADC-Sample-Clock Generation.

    Science.gov (United States)

    Kim, Yoon-Jee; Cho, Sung-Eun; Um, Ji-Yong; Chae, Min-Kyun; Bang, Jihoon; Song, Jongkeun; Jeon, Taeho; Kim, Byungsub; Sim, Jae-Yoon; Park, Hong-June

    2017-02-01

    A 64-channel RX digital beamformer was implemented in a single chip for 3-D ultrasound medical imaging using 2-D phased-array transducers. The RX beamformer chip includes 64 analog front-end branches including 64 non-uniform sampling ADCs, a FIFO/Adder, and an on-chip look-up table (LUT). The LUT stores the information on the rising edge timing of the non-uniform ADC sampling clocks. To include the LUT inside the beamformer chip, the LUT size was reduced by around 240 times by approximating an ADC-sample-time profile w.r.t. focal points (FP) along a scanline (SL) for a channel into a piece-wise linear form. The maximum error between the approximated and accurate sample times of ADC is eight times the sample time resolution (Ts) that is 1/32 of the ultrasound signal period in this work. The non-uniform sampling reduces the FIFO size required for digital beamforming by around 20 times. By applying a 9-dot image from Field-II program and 2-D ultrasound phantom images to the fabricated RX beamformer chip, the original images were successfully reconstructed from the measured output. The chip in a 0.13-um CMOS occupies 30.25 [Formula: see text] and consumes 605 mW.

  1. Central obesity is predictive of persistent storage lower urinary tract symptoms (LUTS) after surgery for benign prostatic enlargement: results of a multicentre prospective study.

    Science.gov (United States)

    Gacci, Mauro; Sebastianelli, Arcangelo; Salvi, Matteo; De Nunzio, Cosimo; Tubaro, Andrea; Vignozzi, Linda; Corona, Giovanni; McVary, Kevin T; Kaplan, Steven A; Maggi, Mario; Carini, Marco; Serni, Sergio

    2015-08-01

    To evaluate the impact of components of metabolic syndrome (MetS) on urinary outcomes after surgery for severe lower urinary tract symptoms (LUTS) due to benign prostatic enlargement (BPE), as central obesity can be associated with the development of BPE and with the worsening of LUTS. A multicentre prospective study was conducted including 378 consecutive men surgically treated for large BPE with simple open prostatectomy (OP) or transurethral resection of the prostate (TURP), between January 2012 and October 2013. LUTS were measured by the International Prostate Symptom Score (IPSS), immediately before surgery and at 6-12 months postoperatively. MetS was defined according the USA National Cholesterol Education Program-Adult Treatment Panel III. The improvement of total and storage IPSS postoperatively was related to diastolic blood pressure and waist circumference (WC). A WC of >102 cm was associated with a higher risk of an incomplete recovery of both total IPSS (odds ratio [OR] 0.343, P = 0.001) and storage IPSS (OR 0.208, P symptoms after surgical treatment of BPE. Obese men have a higher risk of persistent storage LUTS after TURP or OP. © 2015 The Authors BJU International © 2015 BJU International Published by John Wiley & Sons Ltd.

  2. Sensitivity analysis of 6S-based look-up table for surface reflectance retrieval

    Science.gov (United States)

    Lee, Chang Suk; Yeom, Jong Min; Lee, Han Lim; Kim, Jae-Jin; Han, Kyung-Soo

    2015-02-01

    We created a look-up table (LUT) based on the Second Simulation of the Satellite Signal in the Solar Spectrum (6S) radiative transfer model, which reduces large errors in the surface reflectance retrieval under high solar zenith angle (SZA) conditions. The LUT was calculated in 10° SZA intervals containing pre-computed atmospheric correction coefficients as a function of discretized pre-defined input parameters. In order to validate the performance of the LUT, we compared the retrieved surface reflectance using the LUT against a retrieval performed using the simplified method of atmospheric correction (SMAC). These results were validated against MODIS reflectance data (MOD09). The surface reflectance obtained using the LUT was highly correlated with the MOD09, with a coefficient of determination (R2) of 0.88 (red band) and 0.94 (NIR). The retrieved surface reflectance had a root mean-squared error of 0.0132 (red band) and 0.0191 (NIR). Accuracy of surface reflectance retrieved using our LUT with a 10° SZA interval was better than that of the obtained using SMAC. However, certain errors were still present particularly at high SZAs. In order to increase the accuracy at high SZAs, new LUT was computed with a finer SZA interval (5°) at high SZAs. In both red and NIR bands, the R2, fine SZA interval LUT (0.92) were compared to the coarse SZA interval LUT (0.74) of around 65°. Additionally, the run time for surface reflectance retrievals with our LUT was almost comparable to that of the SMAC, an operational model. This study demonstrates that proper SZAs interval for making LUT in high SZA range.

  3. [Clinical effectiveness and safety study of combined therapy with an alpha-blocker and an anticholinergic for patients with LUT/BPH].

    Science.gov (United States)

    Xiao, He; Li, Han-Zhong; Yang, Yong; Huang, Zhong-Ming; Li, Yong-Qiang; Zhao, Xiao-Feng

    2007-06-19

    The effectiveness and safety of the combined therapy of terazosin and tolterodine for LUT/BPH patients with dominant storage symptoms was evaluated. The present study included 69 patients diagnosed as LUT/BPH by IPSS, flowmetry, ultrasound for prostate volume, residual urine, serum PSA and other methods, all of them fulfilled the study's inclusive/exclusive criteria. The principal exclusive criteria were prostate volume > 50 ml, Qmax 50 ml. All 69 patients had bothering storage symptoms after initial treatment with terazosin 2 mg once daily for one week., they were divided randomly into two groups. Terazosin group in which patients were treated with terazosin 2 mg once daily for six weeks, and combination group in which patients were treated with terazosin 2 mg once daily and tolterodine 2 mg twice daily for 6 weeks. Sixty-nine patients with LUT/BPH were recruited with inclusive/exclusive criteria of our study, thirty-six patients were in terazosin group and 33 were in combination group. At baseline there were no significant differences between the groups, in mean age, body weight, prostate volume, IPSS, storage IPSS, voiding IPSS, Qmax and residual urine. The results showed that the IPSS was significantly improved in the two groups after treatment, but the reduction of IPSS in combination group was significantly greater than that in terazosin group (P LUT/BPH patients with dominant storage symptoms can improve the IPSS, especially the storage IPSS, without any negative effects on uroflow rate and residual urine. Combining with inclusion/exclusion criteria of the study, we believe that combined therapy with alpha-blocker plus anticholinergics is an effective and safe treatment for LUT/BPH patients with relatively small prostate volume, moderate impaired Q(max) and dominant storage symptoms.

  4. Effect of lower urinary tract symptoms on the quality of life and sexual function of males in China, Taiwan, and South Korea: Subgroup analysis of a cross-sectional, population-based study.

    Science.gov (United States)

    Liao, Limin; Chuang, Yao-Chi; Liu, Shih-Ping; Lee, Kyu-Sung; Yoo, Tag Keun; Chu, Romeo; Sumarsono, Budiwan; Wang, Jian-Ye

    2018-03-11

    Lower urinary tract symptoms (LUTS) in males can reduce patients' quality of life (QoL) and affect sexual function and satisfaction. Although this has been documented in the US, Canada, Germany, Italy, UK, and Sweden, data are limited on the effects of LUTS on QoL and sexual function in Asian men. The present subgroup analysis of an Internet-based survey correlated the incidence of male LUTS by severity and category with self-assessed QoL and sexual function and satisfaction measures. Males aged ≥40 years were randomly selected from consumer survey panels in China, Taiwan, and South Korea. LUTS were defined using the International Continence Society (ICS) 2002 symptom definitions; symptom severity was assessed by the International Prostate Symptom Score (IPSS). The effect of LUTS on QoL was assessed using Patient Perception of Bladder Condition (PPBC) and IPSS QoL scores. Sexual function and satisfaction were assessed using the International Index of Erectile Function (IIEF). Men with moderate-to-severe LUTS and overlap of voiding, storage, and post-micturition symptom categories reported dissatisfaction with their QoL and sexual function. LUTS severity was negatively correlated with IIEF scores. Overlap of LUTS categories had a greater effect on QoL and sexual satisfaction than the incidence of just 1 LUTS. The findings of the present study suggest that LUTS is prevalent in >60% of Asian males aged ≥40 years and is associated with reduced QoL and sexual function, particularly in those with overlap of LUTS categories and greater symptom severity. © 2018 The Authors. LUTS: Lower Urinary Tract Symptoms published by John Wiley & Sons Australia, Ltd.

  5. Fracture mapping of lineaments and recognizing their tectonic significance using SPOT-5 satellite data: A case study from the Bajestan area, Lut Block, east of Iran

    Science.gov (United States)

    Ahmadirouhani, Reyhaneh; Rahimi, Behnam; Karimpour, Mohammad Hassan; Malekzadeh Shafaroudi, Azadeh; Afshar Najafi, Sadegh; Pour, Amin Beiranvand

    2017-10-01

    Syste'm Pour l'Observation de la Terre (SPOT) remote sensing satellite data have useful characteristics for lineament extraction and enhancement related to the tectonic evaluation of a region. In this study, lineament features in the Bajestan area associated with the tectonic significance of the Lut Block (LB), east Iran were mapped and characterized using SPOT-5 satellite data. The structure of the Bajestan area is affected by the activity of deep strike-slip faults in the boundary of the LB. Structural elements such as faults and major joints were extracted, mapped, and analyzed by the implementation of high-Pass and standard kernels (Threshold and Sobel) filters to bands 1, 2 and 3 of SPOT-5 Level 2 A scene product of the Bajestan area. Lineament map was produced by assigning resultant filter images to red-green-blue (RGB) colour combinations of three main directions such as N-S, E-W and NE-SW. Results derived from image processing technique and statistical assessment indicate that two main orientations, including NW-SE with N-110 azimuth and NE-SW with N-40 azimuth, were dominated in the Bajestan area. The NW-SE trend has a high frequency in the study area. Based on the results of remote sensing lineament analysis and fieldwork, two dextral and sinistral strike-slip components were identified as main fault trends in the Bajestan region. Two dextral faults have acted as the cause of shear in the south and north of the Bajestan granitoid mass. Furthermore, the results indicate that the most of the lineaments in this area are extensional fractures corresponding to both the dykes emplacement and hydrothermal alteration zones. The application of SPOT-5 satellite data for structural analysis in a study region has great capability to provide very useful information of a vast area with low cost and time-consuming.

  6. Treatment satisfaction with tadalafil or tamsulosin vs placebo in men with lower urinary tract symptoms (LUTS) suggestive of benign prostatic hyperplasia (BPH): results from a randomised, placebo-controlled study.

    Science.gov (United States)

    Oelke, Matthias; Giuliano, François; Baygani, Simin K; Melby, Thomas; Sontag, Angelina

    2014-10-01

    To assess treatment satisfaction with tadalafil or tamsulosin vs placebo in a 12-week, randomised, double-blind study of men with lower urinary tract symptoms suggestive of benign prostatic hyperplasia (LUTS/BPH). After a 4-week placebo lead-in period, men aged ≥45 years with an International Prostate Symptom Score (IPSS) of ≥13 and a maximum urinary flow rate of ≥4 to ≤15 mL/s received placebo (172 men), tadalafil 5 mg (171), or tamsulosin 0.4 mg (168) once daily for 12 weeks. Treatment Satisfaction Scale-BPH (TSS-BPH) responses were assessed based on median treatment differences using the van Elteren test. Overall treatment satisfaction was greater for tadalafil vs placebo (P = 0.005), based on greater satisfaction with efficacy (P = 0.003); neither overall treatment satisfaction nor satisfaction with efficacy was greater for tamsulosin vs placebo (P ≥ 0.409). For individual questions, 66.5% of men rated tadalafil treatment as 'effective/very effective' (Question 1, Q1) vs placebo (P = 0.011), 72.6% would 'definitely/probably recommend their treatment' (Q3; P = 0.043), 71.8% were generally 'very satisfied/satisfied with their medication' (Q8; P tamsulosin, differences vs placebo were not statistically significant. Subgroup analyses of overall TSS-BPH by baseline age (≤65/>65 years), history of erectile dysfunction (yes/no), LUTS/BPH severity (IPSStamsulosin and placebo. © 2014 The Authors. BJU International © 2014 BJU International.

  7. COMPARISON OF PROSTATE VOLUME MEASURED BY TRANSABDOMINAL ULTRASOUND AND TRANSRECTAL ULTRASOUND IN PATIENT WITH LUTS DUE TO BENIGN PROSTATIC ENLARGEMENT

    Directory of Open Access Journals (Sweden)

    Thakappa Narayanrao Gachchi

    2017-06-01

    Full Text Available BACKGROUND A filled bladder acts as an acoustic window for transabdominal ultrasound measurements of intravesical prostatic protrusion and volume. The incidence of BPE is 18%, 29%, 40% and 56% of men in their 40s, 50s, 60s and 70s, respectively, having moderateto-severe Lower Urinary Tract Symptoms (LUTS. 1 The size of the prostate are determined by Digital Rectal Examination (DRE, Transabdominal Ultrasound and Transracial Ultrasound (TRUS. DRE tends to underestimate true prostate size as determined by transabdominal ultrasound and TRUS. The magnitude of the underestimation increases with increasing prostate size from 25% up to 50% or more. 2 TRUS volume measurements using the prostate ellipsoid volume formula (maximum width x height x length /6 are the most widely accepted measure of prostate volume. 3 Ultrasound has been increasingly used in the evaluation of patients with Benign Prostatic Enlargement (BPE. It defines prostatic size, shape and volume, which maybe correlated with the degree of bladder outlet obstruction in BPE. Ultrasound also be used to assess the effects of BPE on the upper urinary tracts and bladder. 4,5 For transabdominal ultrasound imaging of the prostate, a filled bladder is essential. It acts as an acoustic window, which readily transmits ultrasound waves and effectively serves as a conduit to the postero-caudally situated prostate. The loss of this acoustic window (an empty bladder and over distended bladder makes ultrasound imaging and measurement of prostate difficult and unreliable. 6 The aim of this study is to compare prostate volume measured by transabdominal ultrasound and by transrectal ultrasonography correlating with bladder volume. MATERIALS AND METHODS One hundred patients presenting with lower urinary tract symptoms due to benign prostatic enlargement were studied prospectively in Uroradiology Department, Institute of Nephro-Urology, Bengaluru, from May 2016 to October 2016. Inclusion Criteria- Male

  8. Inverse halftoning algorithm using edge-based lookup table approach.

    Science.gov (United States)

    Chung, Kuo-Liang; Wu, Shih-Tung

    2005-10-01

    The inverse halftoning algorithm is used to reconstruct a gray image from an input halftone image. Based on the recently published lookup table (LUT) technique, this paper presents a novel edge-based LUT method for inverse halftoning which improves the quality of the reconstructed gray image. The proposed method first uses the LUT-based inverse halftoning method as a preprocessing step to transform the given halftone image to a base gray image, and then the edges are extracted and classified from the base gray image. According to these classified edges, a novel edge-based LUT is built up to reconstruct the gray image. Based on a set of 30 real training images with both low-and high-frequency contents, experimental results demonstrated that the proposed method achieves a better image quality when compared to the currently published two methods, by Chang et al. and Meşe and Vaidyanathan.

  9. 3,4-Lutidinium salts with the diiodidoaurate(I) anion: structure of [(3,4-lut)2H]+·[AuI2]-and of two polymorphs of [(3,4-lut)2H+]2·[AuI2]-·I.

    Science.gov (United States)

    Döring, Cindy; Sui, Zhihong; Jones, Peter G

    2018-03-01

    Reactions between potassium tetraiodidoaurate(III) and pyridine (py, C 5 H 5 N) or 3,4-lutidine (3,4-dimethylpyridine, 3,4-lut, C 7 H 9 N) were tested as possible sources of azaaromatic complexes of gold(III) iodide, but all identifiable products contained gold(I). The previously known structure dipyridinegold(I) diiodidoaurate(I), [Au(py) 2 ] + ·[AuI 2 ] - , (3) [Adams et al. (1982). Z. Anorg. Allg. Chem. 485, 81-91], was redetermined at 100 K. The reactions with 3,4-lutidine gave three different types of crystal in small quantities. 3,4-Dimethylpyridine-3,4-dimethylpyridinium diiodidoaurate(I), [(3,4-lut) 2 H] + ·[AuI 2 ] - , (1), consists of an [AuI 2 ] - anion on a general position and two [(3,4-lut) 2 H] + cations across twofold axes. Bis(3,4-dimethylpyridine-3,4-dimethylpyridinium) diiodidoaurate(I) iodide, [(3,4-lut) 2 H + ] 2 ·[AuI 2 ] - ·I - , (2), crystallizes as two polymorphs, each forming pseudosymmetric inversion twins, in the space groups P2 1 and Pc (but resembling P2 1 /m and P2/c), respectively. These are essentially identical layer structures differing only in their stacking patterns and thus might be regarded as polytypes.

  10. LUT Reveals a New Mass-transferring Semi-detached Binary

    Science.gov (United States)

    Qian, S.-B.; Zhou, X.; Zhu, L.-Y.; Zejda, M.; Soonthornthum, B.; Zhao, E.-G.; Zhang, J.; Zhang, B.; Liao, W.-P.

    2015-12-01

    GQ Dra is a short-period eclipsing binary in a double stellar system that was discovered by Hipparcos. Complete light curves in the UV band were obtained with the Lunar-based Ultraviolet Telescope in 2014 November and December. Photometric solutions are determined using the W-D (Wilson and Devinney) method. It is discovered that GQ Dra is a classical Algol-type semi-detached binary where the secondary component is filling the critical Roche lobe. An analysis of all available times of minimum light suggests that the orbital period is increasing continuously at a rate of \\dot{P}=+3.48(+/- 0.23)× {10}-7 days yr-1. This could be explained by mass transfer from the secondary to the primary, which is in agreement with the semi-detached configuration with a lobe-filling secondary. By assuming a conservation of mass and angular momentum, the mass transfer rate is estimated as \\dot{m}=9.57(+/- 0.63)× {10}-8 {M}⊙ {{yr}}-1. All of these results reveal that GQ Dra is a mass-transferring semi-detached binary in a double system that was formed from an initially detached binary star. After the massive primary evolves to fill the critical Roche lobe, the mass transfer will be reversed and the binary will evolve into a contact configuration with two sub-giant or giant component stars.

  11. Hubungan sosial ekonomi, pola asuh, pola makan dengan stunting pada siswa sekolah dasar di Kecamatan Lut Tawar, Kabupaten Aceh Tengah

    Directory of Open Access Journals (Sweden)

    Basri Aramico

    2016-08-01

    Full Text Available ABSTRACTBackground: High prevalence of stunted children that indicates nutrition problem in Indonesia is a chronic problem associated with poverty, low education, and lack of service and environmental health. The low birth weight infant will have an impact on growth disorders in children.      Objectives: To identify association between social economic aspect of the family, rearing pattern, eating pattern and stunting in elementary school children in Lut Tawar Subditrict Central Aceh Regency.Methods: The study were analytic observational with cross sectional design and qualitative method. Data were obtained through observation and interview using questionnaire. Samples were 378 children from 11 elementary school in Lut Tawar Subdistrict Central Aceh Regency. Samples were selected by proportional random sampling. Analysis used chi-square at confi dence interval 95%. Number of samples were 378 children.Results: There were association between maternal education and nutritional status (p<0.001 OR=4.06; father education and nutritional status (p<0.001 OR=3.37; number of underfi ves with nutritional status (p=0.007 OR=2.71; income of parent and nutritional status (p<0.001 OR=7.8; rearing pattern and nutritional status (p<0.001 OR=8.07; eating pattern and nutritional status (p<0.001 OR=6.01. There were dominant association between rearing pattern and nutritional status with OR 8, between eating patern,income of parent and nutritional status with OR of 6.01 There were no association between acces and utilization of health service and nutritional status (p=0,78 OR=0,93.Conclusions: There were signifi cant association between rearing pattern, eating pattern, and nutritional status.KEYWORDS: stunting, rearing pattern, eating patternABSTRAKLatar belakang: Tingginya prevalensi anak pendek yang menunjukkan masalah gizi di Indonesia merupakan masalah kronis yang berkaitan dengan kemiskinan, rendahnya pendidikan, dan kurang memadainya pelayanan

  12. Modification of REE distribution of ordinary chondrites from Atacama (Chile) and Lut (Iran) hot deserts: Insights into the chemical weathering of meteorites

    Science.gov (United States)

    Pourkhorsandi, Hamed; D'Orazio, Massimo; Rochette, Pierre; Valenzuela, Millarca; Gattacceca, Jérôme; Mirnejad, Hassan; Sutter, Brad; Hutzler, Aurore; Aboulahris, Maria

    2017-09-01

    The behavior of rare earth elements (REEs) during hot desert weathering of meteorites is investigated. Ordinary chondrites (OCs) from Atacama (Chile) and Lut (Iran) deserts show different variations in REE composition during this process. Inductively coupled plasma-mass spectrometry (ICP-MS) data reveal that hot desert OCs tend to show elevated light REE concentrations, relative to OC falls. Chondrites from Atacama are by far the most enriched in REEs and this enrichment is not necessarily related to their degree of weathering. Positive Ce anomaly of fresh chondrites from Atacama and the successive formation of a negative Ce anomaly with the addition of trivalent REEs are similar to the process reported from Antarctic eucrites. In addition to REEs, Sr and Ba also show different concentrations when comparing OCs from different hot deserts. The stability of Atacama surfaces and the associated old terrestrial ages of meteorites from this region give the samples the necessary time to interact with the terrestrial environment and to be chemically modified. Higher REE contents and LREE-enriched composition are evidence of contamination by terrestrial soil. Despite their low degrees of weathering, special care must be taken into account while working on the REE composition of Atacama meteorites for cosmochemistry applications. In contrast, chondrites from the Lut desert show lower degrees of REE modification, despite significant weathering signed by Sr content. This is explained by the relatively rapid weathering rate of the meteorites occurring in the Lut desert, which hampers the penetration of terrestrial material by forming voluminous Fe oxide/oxyhydroxides shortly after the meteorite fall.

  13. Petrogenesis of Granitoids, U-Pb zircon geochronology, Sr-Nd Petrogenesis of granitoids, U-Pb zircon geochronology, Sr-Nd isotopic characteristics, and important occurrence of Tertiary mineralization within the Lut block, eastern Iran

    Directory of Open Access Journals (Sweden)

    M.H. Karimpour

    2012-04-01

    Full Text Available Tertiary intrusive granitoids within the Lut block in the Khorasan Razavi and South Khorasan provinces are mainly sub-volcanic with porphyry texture and their composition varies from granite to diorite but monzonite is dominant. With the exception of Hired, these are classified as belonging to the magnetite-series of I-type granitoids. Chemically, these rocks are meta-aluminous. Those with mineralization are K-rich and those without mineralization such as Najmabad are Na-rich. All intrusive rocks plot in the field of calc-alkaline to adakite except Najmabad that plot in the adakite field. Based on low content of Nb (30, low initial 87Sr/86Sr (17 ppm, low ratio of Zr/Nb (0.707 and low initial εNd value (-3, magmas in the Kaybar-Kuh were more contaminated in the continental crust. Based on depletion in HREE and high ratio of (La/YbN (17-23, magma in Najmabad originated in the deep region in which garnet was present. Based on REE pattern and ration of Eu/Eu* (0.8-1, intrusive rocks within Maherabad, Khoopik, Chah-Shaljami, Kuh Shah and Dehsalm are calc-alkaline and their magma formed in an oxidant condition whereas Kaybar Kuh magma with low ratio of Eu/Eu* (<0.8 was contaminated in the continental crust under reduced conditions. The age of these granitoids is between Middle Eocene and Lower Oligocene. Kaybar-Kuh (43.3 Ma is situated in the north and Chah-Shaljami (33.3 Ma in the south. The initial 87Sr/86Sr ratios decrease from north (0.7077 to south (0.7047 as the age decreases. εNd of Maherabad, Khoopik, Dehsalm, and Chah-Shaljami granitoids is between +0.5 and +2.49 and the initial 87Sr/86Sr ratio is less than 0.7055. The age of the source rock (TDM, which was calculated based on Sm-Nd isotopes indicates that these magma originated from oceanic crust with different ages. Kaybar-Kuh originated from the oldest oceanic crust (840 Ma and was contaminated more in continental crust, but Najmabad originated from a younger oceanic crust (360 Ma with

  14. Device and circuit analysis of a sub 20 nm double gate MOSFET with gate stack using a look-up-table-based approach

    Science.gov (United States)

    Chakraborty, S.; Dasgupta, A.; Das, R.; Kar, M.; Kundu, A.; Sarkar, C. K.

    2017-12-01

    In this paper, we explore the possibility of mapping devices designed in TCAD environment to its modeled version developed in cadence virtuoso environment using a look-up table (LUT) approach. Circuit simulation of newly designed devices in TCAD environment is a very slow and tedious process involving complex scripting. Hence, the LUT based modeling approach has been proposed as a faster and easier alternative in cadence environment. The LUTs are prepared by extracting data from the device characteristics obtained from device simulation in TCAD. A comparative study is shown between the TCAD simulation and the LUT-based alternative to showcase the accuracy of modeled devices. Finally the look-up table approach is used to evaluate the performance of circuits implemented using 14 nm nMOSFET.

  15. Evidence of heat-resistant microorganisms with a special emphasis on filamentous Actinomycetes in hyper-arid soils of Gandom Beryan area, Lut Desert, Iran.

    Science.gov (United States)

    Mazkour, Somaye; Hosseinzadeh, Saeid; Shekarforoush, Seyed Shahram

    2017-12-01

    In the present study, the Lut Desert, Iran was chosen as one of the hottest places in the world (with the recorded temperature of 70.7°C during 2003-2009) to find out whether any heat-resistant microorganisms were present in the soil. The samples were collected from surface and depth of three identified places of Gandom Beryan in the Lut Desert. Chemical analysis and enumeration of the total bacteria, yeasts and molds were performed. Four selective culture media were employed to isolate the filamentous actinomycetes. The suspected colonies were further confirmed using PCR assay. Then the culture cell-free-supernatants (CFS) of isolates were used to investigate their antimicrobial activity against Staphylococcus aureus, Bacillus cereus, Salmonella Typhimurium and Escherichia coli . Chemical analysis of the samples included moisture (0.2-0.9%), ash (85-91%), organic materials (8.3-14.4%), pH (7.59-9.40) and electrical conductivity (380-2000 μS/cm). The number of isolated bacteria and molds varied from 0-20 to 0-40 CFU/g, respectively. Number of Actinomycetes isolated from the soil samples were between 0-12.2 CFU/g. Nine isolated colonies were identified as filamentous Actinomycetes. To determine the possibility of antimicrobial peptides, the CFS (cell-free supernatant) was firstly neutralized by NaOH and catalase. The results showed that none of the CFS of the isolates was effective against E. coli, S. Typhimurium and S. aureus , while the maximum inhibitory effect was investigated on B. cereus , which was 33.1%±1.19% (mean ± SD). The results of the current study imply the presence of rare heat-resistant microorganisms in the soil of Gandom Beryan which may be further used to find out more about the function of natural bioactive compounds. Actinomycetes, as extremophile microorganisms, have shown the greatest genomic and metabolic diversity, as such the discovery of the novel Actinomycetes as a source of secondary metabolites is essential.

  16. Prevalence of Lower Urinary Tract Symptoms in China, Taiwan, and South Korea: Results from a Cross-Sectional, Population-Based Study.

    Science.gov (United States)

    Chapple, Christopher; Castro-Diaz, David; Chuang, Yao-Chi; Lee, Kyu-Sung; Liao, Limin; Liu, Shih-Ping; Wang, Jianye; Yoo, Tag Keun; Chu, Romeo; Sumarsono, Budiwan

    2017-08-01

    Few population-based data are available evaluating the prevalence of lower urinary tract symptoms (LUTS) in Asia. The objective of our study was to determine LUTS prevalence in China, Taiwan, and South Korea using International Continence Society (ICS) 2002 criteria. An Internet-based self-administered survey among individuals aged at least 40 years with the ability to use a computer and to read the local language. Survey questions included ICS symptom definitions and the international prostate symptom score (IPSS). Data analysis was based on descriptive statistics and post hoc significance testing. There were 8284 participants, of whom 51% were women and 34% were aged at least 60 years. LUTS prevalence was slightly higher in men than women (62.8% vs. 59.6%; p = 0.004), increasing significantly with age (p = 0.001). All three ICS symptom groups (voiding, storage, and post-micturition) were present in 35% of individuals with LUTS. Symptoms with the highest overall prevalence were nocturia, frequency, incomplete emptying, and terminal dribble. The most bothersome symptoms were terminal dribble, nocturia, and urgency. According to IPSS scores, 87% of participants had at least mild symptoms; 43% of those aged over 60 years had moderate/severe symptoms. The percentage of participants with any LUTS who had visited healthcare professionals because of urinary symptoms was 26%, rising to 45% amongst individuals with all three symptom groups (p = 0.001 vs. other ICS symptom groups). LUTS are highly prevalent in men and women aged at least 40 years who participated in this study in China, Taiwan, and South Korea and increases with increasing age. A minority of individuals with LUTS seek healthcare and our results suggest an increased patient awareness of LUTS is required. Astellas Pharma Singapore Pte. Ltd. ClinicalTrials.gov identifier, NCT02618421.

  17. Compiling Data from Geological, Mineralogical and Geophysical (IP/RS Studies on Mahour Deposit, Northwest of Deh-salm, Lut Block

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    Arash Gorabjeiri Puor

    2015-10-01

    Full Text Available Introduction The Mahour exploration area is a polymetallic system containing copper, zinc and silver. The mineralization can be seen in two forms of veins and disseminations. This area is structurally within the Lut block, west of Deh-salm Village. Recent exploration work and studies carried out by geologists on this volcanic-plutonic area of Lut demonstate its importance indicating new reserves of copper, gold, and lead and zinc. Several articles have been published on the Mahour deposit in recent years, including work on fluid inclusions (Mirzaei et al., 2012a; Mirzaei et al., 2012b. The present report aims at completion of previous studies on Mahour. During the course of this research, the IP/RS geophysical methods were used to locate the extent and depth of sulfide veins in order to locate drill sites. The IP/RS method has been used extensively worldwide in locating sulfide mineralization at deposits such as Olympic Dam in Australia (Esdale et al., 1987, Hishikari epithermal gold deposit in Kagoshima, Japan (Okada, 1995 and Cadia-Ridgeway copper and gold deposit in New South Wales, Australia (Rutley et al., 2001. Materials and Methods 1. Determination of mineralogy of ore and alteration by examination of 70 thin sections and 45 polished sections. 2. Compilation of geological and mineralization maps of the studied area at a scale of 1:1000. 3. Geological, alteration, mineralization and trace element geochemical studies of 6 drill holes. 4. IP/RS measurements for 2585 points on a rectangular grid with profile intervals of 50 meters and electrode intervals of 20 meters. 5. Interpretation of IP/RS results. Discussion The Mahour area is covered by a volcanic sequence of basalt, andesite, dacite, rhyolite and pyro-clastics. During the Late Eocene through Early Oligocene this volcanic complex was intruded by several diorite and quartz-diorite bodies, which were responsible for mineralization of the area. Mineralized veins hosted by dacite show NNE

  18. LUT Reveals an Algol-type Eclipsing Binary With Three Additional Stellar Companions in a Multiple System

    Science.gov (United States)

    Zhu, L.-Y.; Zhou, X.; Hu, J.-Y.; Qian, S.-B.; Li, L.-J.; Liao, W.-P.; Tian, X.-M.; Wang, Z.-H.

    2016-04-01

    A complete light curve of the neglected eclipsing binary Algol V548 Cygni in the UV band was obtained with the Lunar-based Ultraviolet Telescope in 2014 May. Photometric solutions are obtained using the Wilson-Devinney method. It is found that solutions with and without third light are quite different. The mass ratio without third light is determined to be q = 0.307, while that derived with third light is q = 0.606. It is shown that V548 Cygni is a semi-detached binary where the secondary component is filling the critical Roche lobe. An analysis of all available eclipse times suggests that there are three cyclic variations in the O-C diagram that are interpreted by the light travel-time effect via the presence of three additional stellar companions. This is in agreement with the presence of a large quantity of third light in the system. The masses of these companions are estimated as m sin I‧ ˜ 1.09, 0.20, and 0.52 M⊙. They are orbiting the central binary with orbital periods of about 5.5, 23.3, and 69.9 years, I.e., in 1:4:12 resonance orbit. Their orbital separations are about 4.5, 13.2, and 26.4 au, respectively. Our photometric solutions suggest that they contribute about 32.4% to the total light of the multiple system. No obvious long-term changes in the orbital period were found, indicating that the contributions of the mass transfer and the mass loss due to magnetic braking to the period variations are comparable. The detection of three possible additional stellar components orbiting a typical Algol in a multiple system make V548 Cygni a very interesting binary to study in the future.

  19. The comparison of GLUT-4 and nNOS expression in diabetic and non-diabetic patients with BPH/LUTS.

    Science.gov (United States)

    Otunctemur, Alper; Besiroglu, Huseyin; Dursun, Murat; Ozcan, Levent; Polat, Emre Can; Somay, Adnan; Ozbay, Nurver; Ozer, Kutan; Ozbek, Emin

    2015-06-01

    The aim of this study was to compare glucose transporter-4 (GLUT-4) and neuronal nitric oxide synthase (nNOS) expression in diabetic and non-diabetic patients who underwent TUR-P or transvesical prostatectomy with the diagnosis of BPH. Thirty diabetic patients with an average age of 58 and 30 non-diabetic patients with that of 56 were included in the study. T-PSA, IPSS, Q max value and prostate volume were compared between the two groups. The stromal and glandular staining scores of GLUT-4 and nNOS expression were compared. Student's t test and Mann-Whitney U test were used for statistical analysis. There was no statistically significant difference in terms of age, IPSS, Qmax and PSA. Patients with diabetes had larger prostate volumes (p = 0.02). Mean GLUT-4 glandular total scores in diabetic and non-diabetic patients were 3.36 ± 1.21 and 2.1 ± 1.39, respectively, whereas stromal total scores were 3.63 ± 1.12 and 2.46 ± 1.33, and they were both statistically significant (p = 0.028 and p = 0.032, respectively). Glandular total nNOS scores in diabetic and non-diabetic patients were 4.53 ± 1.0 and 2.80 ± 1.12, while stromal total scores were 1.76 ± 1,0 and 2.30 ± 1.08 and they were found to be statistically significant (p = 0.0001 and p = 0.037, respectively). GLUT-4 expression was found higher in prostatic tissue of the patients with diabetes mellitus. The expression value of nNOS was higher in the glandular area in diabetic patients, while stromal area expression score was higher in non-diabetic patients. Although our findings indicate important results, carefully designed further studies are needed to better comprehend the role of GLUT-4 and NOS pathways in BPH/LUTS pathophysiology.

  20. Temporary implantable nitinol device (TIND): a novel, minimally invasive treatment for relief of lower urinary tract symptoms (LUTS) related to benign prostatic hyperplasia (BPH): feasibility, safety and functional results at 1 year of follow-up.

    Science.gov (United States)

    Porpiglia, Francesco; Fiori, Cristian; Bertolo, Riccardo; Garrou, Diletta; Cattaneo, Giovanni; Amparore, Daniele

    2015-08-01

    To report the first clinical experience with a temporary implantable nitinol device (TIND; Medi-Tate(®) ) for the treatment of lower urinary tract symptoms (LUTS) due to benign prostatic hyperplasia (BPH). In all, 32 patients with LUTS were enrolled in this prospective study, which was approved by our Institutional Ethics Committee. Inclusion criteria were: age >50 years, International Prostate Symptom Score (IPSS) of ≥10, maximum urinary flow rate (Qmax ) of ≤12 mL/s, and prostate volume of urinary retention (one, 3.1%), transient incontinence due to device displacement (one, 3.1%), prostatic abscess (one, 3.1%), and urinary tract infection (one, 3.1%). Multiple regression analysis failed to identify any independent prognostic factor for complications. There were statistically significant differences in the IPSS, QoL score and Qmax when comparing pre- and postoperative results at every time point. After 12 months, the median (IQR) IPSS and QoL score were 9 (7-13) and 1 (1-2), respectively, and the mean (sd) Qmax was 12 (4.7) mL/s. The mean variations with respect to baseline conditions at the same time points were -45% for the IPSS and +67% for Qmax . At 12 months after surgery (last follow-up visit), no patients required medical therapy or surgical procedures for BPH. TIND implantation is a feasible and safe minimally invasive option for the treatment of BPH-related LUTS. The functional results are encouraging and the treatment significantly improved patient QoL. Further studies are required to assess durability of TIND results and to optimise the indications of such a procedure. © 2014 The Authors BJU International © 2014 BJU International Published by John Wiley & Sons Ltd.

  1. Incidence of urinary retention during treatment with single tablet combinations of solifenacin+tamsulosin OCAS™ for up to 1 year in adult men with both storage and voiding LUTS: A subanalysis of the NEPTUNE/NEPTUNE II randomized controlled studies.

    Directory of Open Access Journals (Sweden)

    Marcus J Drake

    Full Text Available The emergence of urinary retention (UR, specifically acute urinary retention (AUR, has been a concern when treating men with lower urinary tract symptoms (LUTS with antimuscarinic drugs.In NEPTUNE (12-week, double-blind, men (≥45 years with LUTS were randomized to receive tamsulosin oral-controlled absorption system (TOCAS 0.4 mg, fixed-dose combination (FDC of solifenacin (Soli 6 mg + TOCAS 0.4 mg, FDC Soli 9 mg + TOCAS 0.4 mg, or placebo. In NEPTUNE II (40-week, open-label extension of NEPTUNE, continuing patients received 4-week FDC Soli 6 mg + TOCAS, then FDC Soli 6 mg or 9 mg + TOCAS for the remainder of the study, switchable every 3 months.Across both studies, 1208 men received ≥1 dose of FDC Soli 6 mg or 9 mg + TOCAS for up to 52 weeks; 1199 men completed NEPTUNE and 1066 received ≥1 dose in NEPTUNE II. In total, 13 men (1.1%; 95% CI, 0.6%-1.8% reported a UR event while receiving FDC, eight of which were AUR (0.7%; 95% CI, 0.3%-1.3%, incidence 7/1000 man-years. Six men reported UR events while taking Soli 6 mg + TOCAS (three AUR, and seven men reported a UR event while taking Soli 9 mg + TOCAS (five AUR. One man developed AUR while taking TOCAS alone and four reported UR (three AUR during placebo run-in. Most AUR/UR events occurred within 4 months of treatment initiation.FDC Soli and TOCAS was associated with a low rate of UR and AUR in men with LUTS.

  2. Daidzein plus isolase associated with zinc improves clinical symptoms and quality of life in patients with LUTS due to benign prostatic hyperplasia: Results from a phase I-II study

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    Daniele Tiscione

    2017-03-01

    Full Text Available Objective: In the last years there is a growing interest in nutraceutical substances that seems able to improve clinical symptoms in patients with lower urinary tract symptoms (LUTS due to benign prostatic hyperplasia (BPH. In this paper, we evaluated both efficacy and safety of a combination of daidzein with isolase and zinc in patients with LUTS due to BPH. Materials and methods: In a phase I-II study clinical trial we enrolled patients with clinical and instrumental diagnosis of LUTS associated to BPH that received a six-month treatment with a combination of daidzein with isolase and zinc (1 tablet/day. Clinical, laboratory and instrumental analyses were carried out at the time of admission (T0 and 6 months after the ending of the treatment (T1. The Italian version of International Prostatic Symptom Score (IPSS, International Index of Erectile Function (IIEF-5 and Quality of Well-Being (QoL questionnaires were used. The development of adverse drug reactions (ADRs and drug interactions (DDIs were recorded using the Naranjo scale and drug interaction probability scale. Student’s t test and Anova test were used for statistical analysis, and the threshold of statistical significance was set at P < 0.05. Results: We enrolled 71 patients, 62 (87.3% completed the follow-up and we documented a significant differences between T0 and T1 in terms of IPSS [21.5 ± 1.2 vs 16.2 ± 1.5; (-4.8; p < 0.001], Cmax [9.7 ± 3.7 vs 15.3 ± 2.5; (+5.6; p < 0.001] and QoL [0.56 ± 0.15 vs 0.84 ± 0.19; (+0.28; p < 0.001]. In contrast, no significant difference were recorded in terms of IIEF-5 [p = 0.50] and PSA [p = 0.67]. Finally, we did not record any significant ADRs or DDIs during the study. Conclusions: In this study, we documented that a combination of daidzein with isolase and zinc, reduces the clinical symptoms of LUTS and improves the quality of life in patients with BPH, without the development of ADRs or DDIs.

  3. Performance of a lookup table-based approach for measuring tissue optical properties with diffuse optical spectroscopy

    Science.gov (United States)

    Rajaram, Narasimhan; Tunnell, James W.

    2012-01-01

    Abstract. Diffuse optical spectroscopy (DOS) provides a powerful tool for fast and noninvasive disease diagnosis. The ability to leverage DOS to accurately quantify tissue optical parameters hinges on the model used to estimate light-tissue interaction. We describe the accuracy of a lookup table (LUT)-based inverse model for measuring optical properties under different conditions relevant to biological tissue. The LUT is a matrix of reflectance values acquired experimentally from calibration standards of varying scattering and absorption properties. Because it is based on experimental values, the LUT inherently accounts for system response and probe geometry. We tested our approach in tissue phantoms containing multiple absorbers, different sizes of scatterers, and varying oxygen saturation of hemoglobin. The LUT-based model was able to extract scattering and absorption properties under most conditions with errors of less than 5 percent. We demonstrate the validity of the lookup table over a range of source-detector separations from 0.25 to 1.48 mm. Finally, we describe the rapid fabrication of a lookup table using only six calibration standards. This optimized LUT was able to extract scattering and absorption properties with average RMS errors of 2.5 and 4 percent, respectively. PMID:22612140

  4. Acquisition and classification of static single-event upset cross section for SRAM-based FPGAs

    International Nuclear Information System (INIS)

    Yao Zhibin; Fan Ruyu; Guo Hongxia; Wang Zhongming; He Baoping; Zhang Fengqi; Zhang Keying

    2011-01-01

    In order to evaluate single event upsets (SEUs) in SRAM-based FPGAs and to find the sensitive resource in configuration memory, a heavy ions irradiation experiment was carried out on a Xilinx FPGAs device XCV300PQ240. The experiment was conducted to gain the static SEU cross section and classify the SEUs in configurations memory according to different resource uses. The results demonstrate that the inter-memory of SRAM-based FPGAs is extremely sensitive to heavy-ion-induced SEUs. The LUT and routing resources are the main source of SEUs in the configuration memory, which covers more than 97.46% of the total upsets. The SEU sensitivity of various resources is different. The IOB control bit and LUT elements are more sensitive,and more attention should be paid to the LUT elements in radiation hardening,which account for a quite large proportion of the configuration memory. (authors)

  5. Serenoa repens, lycopene and selenium versus tamsulosin for the treatment of LUTS/BPH. An Italian multicenter double-blinded randomized study between single or combination therapy (PROCOMB trial).

    Science.gov (United States)

    Morgia, Giuseppe; Russo, Giorgio I; Voce, Salvatore; Palmieri, Fabiano; Gentile, Marcello; Giannantoni, Antonella; Blefari, Franco; Carini, Marco; Minervini, Andrea; Ginepri, Andrea; Salvia, Giuseppe; Vespasiani, Giuseppe; Santelli, Giorgio; Cimino, Sebastiano; Allegro, Rosalinda; Collura, Zaira; Fragalà, Eugenia; Arnone, Salvatore; Pareo, Rosaria M

    2014-11-01

    Phytotherapy has been used to treat patients with lower urinary tract symptoms (LUTS). We evaluated the efficacy and tolerability of combination therapy between Serenoa Repens (SeR), Lycopene (Ly), and Selenium (Se) + tamsulosin versus single therapies. PROCOMB trial (ISRCTN78639965) was a randomized double-blinded, double-dummy multicenter study of 225 patients between 55 and 80 years old, PSA ≤ 4 ng/ml, IPSS ≥12, prostate volume ≤60 cc, Qmax ≤15 ml/sec, postvoid residual urine (PVR) tamsulosin 0.4 mg), group C (SeR-Se-Ly + tamsulosin 0.4 mg). The primary endpoints of the study were the reduction of IPSS, PVR, and increase of Qmax in group C versus monotherapy groups. The decrease for combination therapy was significantly greater versus group A (P tamsulosin therapy is more effective than single therapies in improving IPSS and increasing Qmax in patients with LUTS. © 2014 Wiley Periodicals, Inc.

  6. Advanced optical simulation of scintillation detectors in GATE V8.0: first implementation of a reflectance model based on measured data

    Science.gov (United States)

    Stockhoff, Mariele; Jan, Sebastien; Dubois, Albertine; Cherry, Simon R.; Roncali, Emilie

    2017-06-01

    Typical PET detectors are composed of a scintillator coupled to a photodetector that detects scintillation photons produced when high energy gamma photons interact with the crystal. A critical performance factor is the collection efficiency of these scintillation photons, which can be optimized through simulation. Accurate modelling of photon interactions with crystal surfaces is essential in optical simulations, but the existing UNIFIED model in GATE is often inaccurate, especially for rough surfaces. Previously a new approach for modelling surface reflections based on measured surfaces was validated using custom Monte Carlo code. In this work, the LUT Davis model is implemented and validated in GATE and GEANT4, and is made accessible for all users in the nuclear imaging research community. Look-up-tables (LUTs) from various crystal surfaces are calculated based on measured surfaces obtained by atomic force microscopy. The LUTs include photon reflection probabilities and directions depending on incidence angle. We provide LUTs for rough and polished surfaces with different reflectors and coupling media. Validation parameters include light output measured at different depths of interaction in the crystal and photon track lengths, as both parameters are strongly dependent on reflector characteristics and distinguish between models. Results from the GATE/GEANT4 beta version are compared to those from our custom code and experimental data, as well as the UNIFIED model. GATE simulations with the LUT Davis model show average variations in light output of    0.99. Experimental data agree within 9% for relative light output. The new model also simplifies surface definition, as no complex input parameters are needed. The LUT Davis model makes optical simulations for nuclear imaging detectors much more precise, especially for studies with rough crystal surfaces. It will be available in GATE V8.0.

  7. Advanced optical simulation of scintillation detectors in GATE V8.0: first implementation of a reflectance model based on measured data.

    Science.gov (United States)

    Stockhoff, Mariele; Jan, Sebastien; Dubois, Albertine; Cherry, Simon R; Roncali, Emilie

    2017-06-21

    Typical PET detectors are composed of a scintillator coupled to a photodetector that detects scintillation photons produced when high energy gamma photons interact with the crystal. A critical performance factor is the collection efficiency of these scintillation photons, which can be optimized through simulation. Accurate modelling of photon interactions with crystal surfaces is essential in optical simulations, but the existing UNIFIED model in GATE is often inaccurate, especially for rough surfaces. Previously a new approach for modelling surface reflections based on measured surfaces was validated using custom Monte Carlo code. In this work, the LUT Davis model is implemented and validated in GATE and GEANT4, and is made accessible for all users in the nuclear imaging research community. Look-up-tables (LUTs) from various crystal surfaces are calculated based on measured surfaces obtained by atomic force microscopy. The LUTs include photon reflection probabilities and directions depending on incidence angle. We provide LUTs for rough and polished surfaces with different reflectors and coupling media. Validation parameters include light output measured at different depths of interaction in the crystal and photon track lengths, as both parameters are strongly dependent on reflector characteristics and distinguish between models. Results from the GATE/GEANT4 beta version are compared to those from our custom code and experimental data, as well as the UNIFIED model. GATE simulations with the LUT Davis model show average variations in light output of    0.99. Experimental data agree within 9% for relative light output. The new model also simplifies surface definition, as no complex input parameters are needed. The LUT Davis model makes optical simulations for nuclear imaging detectors much more precise, especially for studies with rough crystal surfaces. It will be available in GATE V8.0.

  8. A Population-based Survey of the Prevalence, Potential Risk Factors, and Symptom-specific Bother of Lower Urinary Tract Symptoms in Adult Chinese Women.

    Science.gov (United States)

    Zhang, Lei; Zhu, Lan; Xu, Tao; Lang, Jinghe; Li, Zhaoai; Gong, Jian; Liu, Qing; Liu, Xiaochun

    2015-07-01

    Epidemiological studies of lower urinary tract symptoms (LUTS) are few in China, and none has been conducted nationwide. To estimate the prevalence and potential risk factors of LUTS and the bother they impose on adult women in China. This is the second analysis of a population-based cross-sectional survey on urinary incontinence conducted between February and July 2006 in six regions of China. Cluster samples were randomly selected for interviews. No intervention was implemented. A modified Chinese Bristol Female Lower Urinary Tract Symptoms questionnaire was administered. The participants were asked about the presence of individual LUTS and rated their symptom bother. Descriptive statistics, χ(2) tests, receiver operating characteristic curves, and multivariate logistic regressions were used for data analysis. A total of 18 992 respondents (94.96%) were included. The prevalence of any LUTS, storage symptoms, or voiding symptoms was 55.5%, 53.9%, and 12.9%, respectively, and increased with age. Nocturia was the most common symptom (23.4%), followed by urgency (23.3%) and stress urinary incontinence (SUI; 18.9%). Nocturia was most frequently rated as bothersome (93.0%) but was generally minor (80.5%). Urgency and urgency urinary incontinence (UUI) were most frequently reported as severe (11.5% and 10.8%) or moderate (18.5% and 16.8%) bothers. Any LUTS were more prevalent in urban women (57.1% vs 53.9%). Multiple factors increased the odds of bother and individual LUTS, and older age and coexisting pelvic organ prolapse were strong predictors (purinary tract symptoms is high and increases with age in adult women in China. Urgency and urgency urinary incontinence were most frequently regarded as severe or moderate bothers and should be targeted for medical intervention. Copyright © 2014 European Association of Urology. Published by Elsevier B.V. All rights reserved.

  9. A Simple Signal Shaper for GMSK/GFSK and MSK Modulator Based on Sigma-Delta Look-up Table

    Directory of Open Access Journals (Sweden)

    T. Svedek

    2009-06-01

    Full Text Available Due to wide power spectrums of rectangular data streams, it is important for base-band signals to be heavily band limited before modulation. That can be achieved by pulse shaping of rectangular bits. Some of the most common are a half-sine pulse shaper and a Gaussian pulse shaper which are used in Minimum Shift Keying (MSK, Gaussian Minimum Shift Keying (GMSK and Gaussian Frequency Shift Keying (GFSK modulations, respectively. The most common solutions of such shapers use PCM based look-up-table (LUT, which requires an nbit D/A converter. We proposed the use of a 1-bit Sigma Delta Modulation (SDM LUT, which results in smaller ROM capacity, a 1-bit wide output word, and a simple1-bit D/A converter realized as an out-of-chip first-order lowpass RC filter, or an in-chip charge pump. This article describes a simple, but efficient SDM LUT-based half-sine and Gaussian shaper that can be used for generation of MSK and GMSK/GFSK modulated signals. Oscillograms and power spectrums are measured on SDM LUT realized in FLEX AlteraTM PLD, for a 10-bit pseudo-noise sequence test input signal.

  10. Comparison of Three Ideal Point-Based Multi-Criteria Decision Methods for Afforestation Planning

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    René Estrella

    2014-12-01

    Full Text Available Three ideal point-based multi-criteria decision methods (MCDM, i.e., iterative ideal point thresholding (IIPT, compromise programming (CP and a newly-proposed CP variant, called balanced compromise programming (BCP, were applied to the Tabacay catchment in Ecuador with the aim of finding a distribution of land use types (LUT that optimizes regional land performance. This performance was expressed in terms of several conflicting on-site ecosystem services (ESS, namely water conservation, soil protection, carbon storage and monetary income. IIPT selects the best performing LUT on a per-land unit basis, that is the assignment of a LUT to a land unit is completely independent with respect to other land units. CP and BCP, on the other hand, aim at optimizing the integrated regional performance. These methods produce a LUT distribution that is as close as possible to the absolute optimal performance that would be achieved when conflict among ESS is not considered. In general, similar results were obtained with CP and BCP. This was not the case when the results produced by these two methods were contrasted with IIPT. For most ESS under consideration, CP and BCP produced balanced results that were closer to the absolute optimal values when compared to IIPT. We conclude from our results that, when optimization of land performance at a regional scale is at stake, CP-derived models emerge as the preferable option over IIPT, especially when balanced solutions are a requirement.

  11. Low power adder based auditory filter architecture.

    Science.gov (United States)

    Rahiman, P F Khaleelur; Jayanthi, V S

    2014-01-01

    Cochlea devices are powered up with the help of batteries and they should possess long working life to avoid replacing of devices at regular interval of years. Hence the devices with low power consumptions are required. In cochlea devices there are numerous filters, each responsible for frequency variant signals, which helps in identifying speech signals of different audible range. In this paper, multiplierless lookup table (LUT) based auditory filter is implemented. Power aware adder architectures are utilized to add the output samples of the LUT, available at every clock cycle. The design is developed and modeled using Verilog HDL, simulated using Mentor Graphics Model-Sim Simulator, and synthesized using Synopsys Design Compiler tool. The design was mapped to TSMC 65 nm technological node. The standard ASIC design methodology has been adapted to carry out the power analysis. The proposed FIR filter architecture has reduced the leakage power by 15% and increased its performance by 2.76%.

  12. Low Power Adder Based Auditory Filter Architecture

    Directory of Open Access Journals (Sweden)

    P. F. Khaleelur Rahiman

    2014-01-01

    Full Text Available Cochlea devices are powered up with the help of batteries and they should possess long working life to avoid replacing of devices at regular interval of years. Hence the devices with low power consumptions are required. In cochlea devices there are numerous filters, each responsible for frequency variant signals, which helps in identifying speech signals of different audible range. In this paper, multiplierless lookup table (LUT based auditory filter is implemented. Power aware adder architectures are utilized to add the output samples of the LUT, available at every clock cycle. The design is developed and modeled using Verilog HDL, simulated using Mentor Graphics Model-Sim Simulator, and synthesized using Synopsys Design Compiler tool. The design was mapped to TSMC 65 nm technological node. The standard ASIC design methodology has been adapted to carry out the power analysis. The proposed FIR filter architecture has reduced the leakage power by 15% and increased its performance by 2.76%.

  13. Remote Estimation of Chlorophyll-a in Inland Waters by a NIR-Red-Based Algorithm: Validation in Asian Lakes

    Directory of Open Access Journals (Sweden)

    Gongliang Yu

    2014-04-01

    Full Text Available Satellite remote sensing is a highly useful tool for monitoring chlorophyll-a concentration (Chl-a in water bodies. Remote sensing algorithms based on near-infrared-red (NIR-red wavelengths have demonstrated great potential for retrieving Chl-a in inland waters. This study tested the performance of a recently developed NIR-red based algorithm, SAMO-LUT (Semi-Analytical Model Optimizing and Look-Up Tables, using an extensive dataset collected from five Asian lakes. Results demonstrated that Chl-a retrieved by the SAMO-LUT algorithm was strongly correlated with measured Chl-a (R2 = 0.94, and the root-mean-square error (RMSE and normalized root-mean-square error (NRMS were 8.9 mg∙m−3 and 72.6%, respectively. However, the SAMO-LUT algorithm yielded large errors for sites where Chl-a was less than 10 mg∙m−3 (RMSE = 1.8 mg∙m−3 and NRMS = 217.9%. This was because differences in water-leaving radiances at the NIR-red wavelengths (i.e., 665 nm, 705 nm and 754 nm used in the SAMO-LUT were too small due to low concentrations of water constituents. Using a blue-green algorithm (OC4E instead of the SAMO-LUT for the waters with low constituent concentrations would have reduced the RMSE and NRMS to 1.0 mg∙m−3 and 16.0%, respectively. This indicates (1 the NIR-red algorithm does not work well when water constituent concentrations are relatively low; (2 different algorithms should be used in light of water constituent concentration; and thus (3 it is necessary to develop a classification method for selecting the appropriate algorithm.

  14. New non-linear color look-up table for visualization of brain fractional anisotropy based on normative measurements - principals and first clinical use.

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    Jiří Keller

    Full Text Available Fractional anisotropy (FA is the most commonly used quantitative measure of diffusion in the brain. Changes in FA have been reported in many neurological disorders, but the implementation of diffusion tensor imaging (DTI in daily clinical practice remains challenging. We propose a novel color look-up table (LUT based on normative data as a tool for screening FA changes. FA was calculated for 76 healthy volunteers using 12 motion-probing gradient directions (MPG, a subset of 59 subjects was additionally scanned using 30 MPG. Population means and 95% prediction intervals for FA in the corpus callosum, frontal gray matter, thalamus and basal ganglia were used to create the LUT. Unique colors were assigned to inflection points with continuous ramps between them. Clinical use was demonstrated on 17 multiple system atrophy (MSA patients compared to 13 patients with Parkinson disease (PD and 17 healthy subjects. Four blinded radiologists classified subjects as MSA/non-MSA. Using only the LUT, high sensitivity (80% and specificity (84% were achieved in differentiating MSA subjects from PD subjects and controls. The LUTs generated from 12 and 30 MPG were comparable and accentuate FA abnormalities.

  15. Majandusteadmiste olümpiaad / Margit Luts

    Index Scriptorium Estoniae

    Luts, Margit

    2001-01-01

    Junior Achievementì Arengufondi korraldatud majandusteadmiste olümpiaadi piirkondlikel voorudel osales 67 kooli, kaheliikmelisi võistkondi oli 90. Olümpiaadi eelvoorud toimusid üle Eesti 3. märtsil, lõppvoor toimub 7. aprillil Eesti Kõrgemas Kommertskoolis. Sponsorite ja võitjate nimed

  16. Molecular structure effect of pyridine-based surface ligand on the performance of P3HT:TiO₂ hybrid solar cell.

    Science.gov (United States)

    Lin, Jhih-Fong; Tu, Guang-Yao; Ho, Chun-Chih; Chang, Chun-Yu; Yen, Wei-Che; Hsu, Sheng-Hao; Chen, Yang-Fang; Su, Wei-Fang

    2013-02-01

    Colloid TiO(2) nanorods are used for solution-processable poly(3-hexyl thiophene): TiO(2) hybrid solar cell. The nanorods were covered by insulating ligand of oleic acid (OA) after sol-gel synthesis. Three more conducting pyridine type ligands: pyridine, 2,6-lutidine (Lut) and 4-tert-butylpyridine (tBP) were investigated respectively to replace OA. The power conversion efficiency (PCE) of the solar cell was increased because the electronic mobility of pyridine-type ligand-modified TiO(2) is higher than that of TiO(2)-OA. The enhancement of PCE is in the descending order of Lut > pyridine > tBP because of the effective replacement of OA by Lut. The PCE of solar cell can be further enhanced by ligand exchange of pyridine type ligand with conjugating molecule of 2-cyano-3-(5-(7-(thiophen-2-yl)-benzothiadiazol-4-yl) thiophen-2-yl) acrylic acid (W4) on TiO(2) nanorods because W4 has aligned bandgap with P3HT and TiO(2) to facilitate charge separation and transport. The electronic mobility of two-stage ligand exchanged TiO(2) is improved furthermore except Lut, because it adheres well and difficult to be replaced by W4. The amount of W4 on TiO(2)-tBP is 3 times more than that of TiO(2)-Lut (0.20 mol % vs. 0.06 mol %). Thus, the increased extent of PCE of solar cell is in the decreasing order of tBP > pyridine > Lut. The TiO(2)-tBP-W4 device has the best performance with 1.4 and 2.6 times more than TiO(2)-pyridine-W4 and TiO(2)-Lut-W4 devices, respectively. The pKa of the pyridine derivatives plays the major role to determine the ease of ligand exchange on TiO(2) which is the key factor mandating the PCE of P3HT:TiO(2) hybrid solar cell. The results of this study provide new insights of the significance of acid-base reaction on the TiO(2) surface for TiO(2)-based solar cells. The obtained knowledge can be extended to other hybrid solar cell systems.

  17. a Mapping Method of Slam Based on Look up Table

    Science.gov (United States)

    Wang, Z.; Li, J.; Wang, A.; Wang, J.

    2017-09-01

    In the last years several V-SLAM(Visual Simultaneous Localization and Mapping) approaches have appeared showing impressive reconstructions of the world. However these maps are built with far more than the required information. This limitation comes from the whole process of each key-frame. In this paper we present for the first time a mapping method based on the LOOK UP TABLE(LUT) for visual SLAM that can improve the mapping effectively. As this method relies on extracting features in each cell divided from image, it can get the pose of camera that is more representative of the whole key-frame. The tracking direction of key-frames is obtained by counting the number of parallax directions of feature points. LUT stored all mapping needs the number of cell corresponding to the tracking direction which can reduce the redundant information in the key-frame, and is more efficient to mapping. The result shows that a better map with less noise is build using less than one-third of the time. We believe that the capacity of LUT efficiently building maps makes it a good choice for the community to investigate in the scene reconstruction problems.

  18. Association of lower urinary tract symptoms and OAB severity with quality of life and mental health in China, Taiwan and South Korea: results from a cross-sectional, population-based study.

    Science.gov (United States)

    Lee, Kyu-Sung; Yoo, Tag Keun; Liao, Limin; Wang, Jianye; Chuang, Yao-Chi; Liu, Shih-Ping; Chu, Romeo; Sumarsono, Budiwan

    2017-11-21

    Lower urinary tract symptoms (LUTS) and overactive bladder (OAB) symptoms have a substantial effect on quality of life (QoL). We report QoL and mental health results from a LUTS prevalence study in three Asian countries. A cross-sectional, population-representative, internet-based study among individuals aged ≥40 years in China, Taiwan and South Korea. Instruments included: Overactive Bladder Symptom Score (OABSS); International Prostate Symptom Score (IPSS); other International Continence Society (ICS) symptom questions; health-related QoL 12-item short-form (HRQoL-SF12v2); Work Limitations Questionnaire (WLQ); Hospital Anxiety and Depression Scale (HADS). Presence of LUTS was determined according to ICS criteria, with three symptom groups (storage, voiding and post-micturition). Post-stratification weighting matched the age and sex population distribution per country. Initial data analyses were based on descriptive statistics. Significance testing undertaken post hoc included: independent-samples t-test (differences in HRQoL between sexes and between individuals with/without LUTS; relationship between HRQoL score and OABSS; differences in HADS anxiety and depression scores between individuals with/without LUTS; association between HADS anxiety/depression scores and OABSS), chi-square test (association between LUTS prevalence and workplace productivity) and analysis of variance (differences in HRQoL score and in HADS anxiety/depression scores between individuals with different symptom groups, association between HADS anxiety/depression scores and IPSS). In total, 8284 participants were included. HRQoL scores were significantly worse (p standard deviation [SD], 20.1) and 76.7 (17.0), respectively; corresponding mental health domain scores were 34.8 (12.7) and 43.7 (10.7). Workplace productivity was best among individuals without LUTS (difficulties reported by 2-3% of individuals), and worst in those with all three ICS symptom groups (difficulties reported by 29

  19. Intensity error correction for 3D shape measurement based on phase-shifting method

    Science.gov (United States)

    Chung, Tien-Tung; Shih, Meng-Hung

    2011-12-01

    3D shape measurement based on structured light system is a field of ongoing research for the past two decades. For 3D shape measurement using commercial projector and digital camera, the nonlinear gamma of the projector and the nonlinear response of the camera cause the captured fringes having both intensity and phase errors, and result in large measurement shape error. This paper presents a simple intensity error correction process for the phase-shifting method. First, a white flat board is projected with sinusoidal fringe patterns, and the intensity data is extracted from the captured image. The intensity data is fitted to an ideal sine curve. The difference between the captured curve and the fitted sine curve are used to establish an intensity look-up table (LUT). The LUT is then used to calibrate the intensities of measured object images for establishing 3D object shapes. Research results show that the measurement quality of the 3D shapes is significantly improved.

  20. An empirical correlation for the entrainment fraction at the onset of annular flow based on 2006 CHF look-up table

    Energy Technology Data Exchange (ETDEWEB)

    Jiao, Bo; Yang, Dongyu [Department of Mechanical Engineering, Rongcheng Campus, Harbin University of Science and Technology, Rongcheng 264300, Shandong (China); Gan, Zhihua, E-mail: gan_zhihua@zju.edu.cn [Institute of Refrigeration and Cryogenics, Zhejiang University, Hangzhou (China); Key Laboratory of Refrigeration and Cryogenic Technology of Zhejiang Province, Hangzhou (China); National Quality Inspection Center of Refrigeration Equipment (Henan), Minquan (China)

    2017-06-15

    Highlights: • A parallel look-up table for the entrainment fraction at annular point was developed. • A correlation was given based on the selected database from 2006 CHF look-up table. • Its reliability on the other conditions in the look-up table was discussed. - Abstract: The critical heat flux (CHF) of gas-liquid flow plays an important role in the safety of industrial equipment. At present, the liquid film dryout model is widely used for predicting CHF in gas-liquid annular flow. Most parameters in this model can be determined by some empirical correlations which are valid under different conditions. However, up to now, the entrainment fraction at the onset of annular flow is always assumed due to the lack of relevant experimental data. In this paper, the normalized data of the 2006 CHF look-up table (LUT) which has been adopted widely, especially in the nuclear industry, were used. Firstly, the empirical correlations, provided for the onset of annular flow and the limiting quality, were employed. In the valid pressure and mass flux range of these correlations, the selected database from LUT was confirmed. Secondly, the liquid film model was built. The entrainment fraction at the onset of annular flow was obtained when the calculated CHF by the model agreed with the corresponding value in LUT. A parallel look-up table for it was developed. Its correlation including the Weber and the liquid Reynolds number at outlet was proposed. The errors are mostly within ±30%. Finally, its reliability on the other conditions in LUT, which are beyond the valid range of the empirical correlations used for determining the database, was discussed. All the conditions whose errors are outside ±30% of the predictions by the provided correlation were marked in the tables.

  1. The likelihood of having serum level of PSA of ≥4.0 ng/mL and ≥10.0 ng/mL in non-obese and obese Nigerian men with LUTS

    Directory of Open Access Journals (Sweden)

    Patrick Temi Adegun

    2015-07-01

    Conclusion: Our study demonstrated that, in a sample population of predominantly native African men, there was a non-significantly higher likelihood of overweight/obese patients having a higher serum PSA level than the non-obese. A community based study is needed to further confirm this finding.

  2. A new scientific product of water vapor derived from GOME, SCHIAMACHY and GOME-2 based on look-up-table AMF approach

    Science.gov (United States)

    Wang, Yang; Lampel, Johannes; Grossi, Margherita; Beirle, Steffen; Wagner, Thomas

    2017-04-01

    Water vapour (H2O) is a key component of the Earth atmosphere and has a strong impact on the Earth's radiative balance. Satellite observations offer the unique opportunity to study the spatial and temporal variability of H2O on a global scale. The operational DLR H2O total column products of GOME, SCIAMACHY and GOME-2 are retrieved using the absorptions of H2O and of molecular oxygen (O2) in the spectral range from 614-683.2 nm (http://atmos.eoc.dlr.de/gome/product_h2o.html). This algorithm is robust and easy to implement and is almost independent of external data sets. However the operational retrieval also has its limitations: 1) the differences in vertical profiles of H2O and O2 can lead to large errors for individual observations (especially if clouds are present); 2) the retrieval contains a number of corrections, which complicate a detailed error analysis; 3) the retrieval does not explicitly account for the impact of strong absorptions on the effective light path and terrain height variations. In order to overcome these limitations, a new H2O retrieval has been developed based on a look-up-table (LUT) approach. The input to the LUT is the H2O slant column densities (SCDs) as derived from the DOAS analysis as well as information about the cloud properties and the observation geometry. The output is the corresponding H2O VCD. The LUT is computed for all relevant viewing geometries, H2O VCD scenarios, terrain heights, surface albedos, and cloud scenarios using the Radiative Transfer Model LIDORT. In order to explicitly represent retrieved H2O SCDs of real observations, the LUT is generated by retrieving a series of synthetic spectra covering all LUT scenarios. The synthetic spectra are generated at high spectral resolution (1pm) and then convoluted with the instrument slit function, and analysed in the same way as observed spectra to retrieve H2O SCDs.

  3. Lower urinary tract symptoms and urinary incontinence in a geriatric cohort - a population-based analysis.

    Science.gov (United States)

    Wehrberger, Clemens; Madersbacher, Stephan; Jungwirth, Susanne; Fischer, Peter; Tragl, Karl-Heinz

    2012-11-01

    To assess prevalence and severity of lower urinary tract function in 85-year-old men and women. Little is known on the prevalence of lower urinary tract dysfunction in this geriatric age group, which is now the fastest growing sector of the population worldwide. The Vienna Trans-Danube Aging study (VITA) is a longitudinal, population-based study initiated in 2000 that included men/women aged 75 years living in a well-defined area in Vienna. The main purpose of the VITA study was to identify risk factors for incident Alzheimer's disease. All study participants alive in 2010 were contacted by mail to complete a detailed questionnaire on various aspects of lower urinary tract symptoms (LUTS) and urinary incontinence (UI). The response rate was 68%, resulting in a total of 262 questionnaires available for analysis (men n= 96; women n= 166). All study participants were 85 years of age. Urinary incontinence defined as any involuntary loss during the past 4 weeks was reported by 24% of men and 35% of women (P= 0.04). Stress UI was more frequent in women (39%) than in men (14%, P 0.05). Nocturia more often than twice was more prevalent in men (69%) than in women (49%) (P= 0.02). Overactive bladder, according to International Continence Society criteria, was present in 55% of women and 50% of men. No difference regarding quality of life impairment as the result of LUTS and UI was noticed between sexes. A few co-morbidities were identified to correlate with UI and storage symptoms. These data provide insights into the prevalence and severity of LUTS and UI in individuals in their eighties, to our knowledge the largest population-based study in this age group. Demographic changes in upcoming decades underline the importance of a thorough understanding of lower urinary tract dysfunction in a geriatric population. © 2012 BJU INTERNATIONAL.

  4. Effect of tamsulosin on ejaculatory function in BPH/LUTS

    Science.gov (United States)

    Song, Sang Hoon; Son, Hwancheol; Kim, Kwang Taek; Kim, Sae Woong; Moon, Du Geon; Moon, Ki Hak; Park, Kwangsung; Park, Jong Kwan; Lee, Sung-Won; Hyun, Jae Seog; Park, Nam Cheol

    2011-01-01

    This study was undertaken to determine the impact on ejaculatory function of tamsulosin (0.2 mg) given once daily (OD) for 12 weeks and to identify risk factors for ejaculatory dysfunction in patients undergoing this treatment. Males with an International Prostatic Symptom Score (IPSS) ≥8 were enrolled in this study. All participants completed questionnaires, including the IPSS and the Male Sexual Health Questionnaire (MSHQ), and serum prostate-specific antigen, transrectal ultrasound and uroflowmetry with post-void residual were measured. After initiating 0.2 mg OD tamsulosin, patients were re-evaluated on the fourth and twelfth weeks of medication. The chi-squared test, the independent t-test and one-way ANOVA were used to compare means. Binary logistic regression analysis was used to calculate the odds ratio for all risk factors. A total of 177 men constituted the study cohort. No significant difference was observed between baseline and follow-up for the erectile function, ejaculatory function, satisfaction, sexual activity and desire domains (EFD, EjFD, SDA and ADD) or for erectile or ejaculatory bother mean scores. After 12 weeks, the overall incidence of ejaculatory dysfunction (EjD) was 13.4%. Incidences of the seven different types of EjD (decreased frequency, delay, dryness, decreased strength/force, decreased volume, decreased pleasure and pain at ejaculation) were 2.4%, 3.1%, 3.9%, 3.9%, 6.3%, 7.1% and 3.1%, respectively. Baseline EjFD scores were higher for IPSS responders than for non-responders (26.09 vs. 24.06, P=0.03). An EjFD score reduction was more frequent in IPSS responders. The incidence of EjD was small, but not negligible and was more frequent in patients with less lower urinary tract symptoms, a smaller prostate, higher baseline MSHQ totals and higher EjFD scores. PMID:21785445

  5. Theodor Lutsu mälestusi (III) / Theodor Luts

    Index Scriptorium Estoniae

    Luts, Theodor, 1896-1980

    1989-01-01

    Õppe-propagandafilm "Gaas! Gaas! Gaas!" ("Th. Lutsu Filmiproduktsioon", 1931), dokumentaalfilm "Ruhno" ("Th. Lutsu Filmiproduktsioon", 1931) ja mängufilm "Päikese lapsed" ("Th. Lutsu Filmiproduktsioon" ja "Suomi Film", 1932)

  6. TERAZOSIN TREATMENT OF PATIENTS WITH LUTS/BPH. DOES ...

    African Journals Online (AJOL)

    All patients underwent digital rectal examination (DRE), International Prostate Symptoms Score (IPSS) and prostate specific antigen (PSA) evaluation to exclude cancer of the prostate. Further investigations included flowmetry and measurement of post-voiding residual urine. All patients were followed-up for at least 12 ...

  7. Prevalence of overactive bladder in China, Taiwan and South Korea: Results from a cross-sectional, population-based study.

    Science.gov (United States)

    Chuang, Yao-Chi; Liu, Shih-Ping; Lee, Kyu-Sung; Liao, Limin; Wang, Jianye; Yoo, Tag Keun; Chu, Romeo; Sumarsono, Budiwan

    2017-10-02

    The aim of the present study was to determine the prevalence of overactive bladder (OAB) in individuals aged ≥40 years in China, Taiwan, and South Korea. The present cross-sectional population-representative Internet-based study investigated OAB symptoms in men and women aged ≥40 years using the overactive bladder symptom score. Additional instruments included the International Index of Erectile Function (men only) and the Sexual Quality of Life - Female (women only) questionnaires, as well as Patient Perception of Bladder Condition (PPBC). In all, 8284 individuals participated in the study. The prevalence of OAB was 20.8% overall (women 22.1%, men 19.5%) and increased significantly with age, from 10.8% in those aged 40-44 years to 27.9% in those aged >60 years (P = .001). The presence of comorbid conditions (e.g. neurological disease, diabetes) was associated with a significantly increased prevalence of OAB. Increasing symptom severity was associated with significantly worsening patient perception of bladder condition responses. Just under half (48%) of those with no OAB had no lower urinary tract symptoms (LUTS), whereas 88% of those with severe symptoms had all 3 LUTS (International Continence Society definition) symptom categories (voiding, post-micturition, and storage symptoms). Of those without OAB, 10% reported visiting healthcare professionals for urinary symptoms, compared with 64% of those with severe OAB symptoms (P = .001). Increased symptom severity was significantly associated with lower sexual quality of life in both men and women. OAB symptoms were found to affect 1 in 5 individuals aged ≥40 years in China, Taiwan, and South Korea, becoming more common with increasing age. The results suggest that many more individuals with OAB could benefit by consulting healthcare professionals. © 2017 The Authors. LUTS Published by John Wiley & Sons Australia, Ltd.

  8. Dithiothreitol-based protein equalization technology to unravel biomarkers for bladder cancer.

    Science.gov (United States)

    Araújo, J E; López-Fernández, H; Diniz, M S; Baltazar, Pedro M; Pinheiro, Luís Campos; da Silva, Fernando Calais; Carrascal, Mylène; Videira, Paula; Santos, H M; Capelo, J L

    2018-04-01

    This study aimed to assess the benefits of dithiothreitol (DTT)-based sample treatment for protein equalization to assess potential biomarkers for bladder cancer. The proteome of plasma samples of patients with bladder carcinoma, patients with lower urinary tract symptoms (LUTS) and healthy volunteers, was equalized with dithiothreitol (DTT) and compared. The equalized proteomes were interrogated using two-dimensional gel electrophoresis and matrix assisted laser desorption ionization time of flight mass spectrometry. Six proteins, namely serum albumin, gelsolin, fibrinogen gamma chain, Ig alpha-1 chain C region, Ig alpha-2 chain C region and haptoglobin, were found dysregulated in at least 70% of bladder cancer patients when compared with a pool of healthy individuals. One protein, serum albumin, was found overexpressed in 70% of the patients when the equalized proteome of the healthy pool was compared with the equalized proteome of the LUTS patients. The pathways modified by the proteins differentially expressed were analyzed using Cytoscape. The method here presented is fast, cheap, of easy application and it matches the analytical minimalism rules as outlined by Halls. Orthogonal validation was done using western-blot. Overall, DTT-based protein equalization is a promising methodology in bladder cancer research. Copyright © 2017 Elsevier B.V. All rights reserved.

  9. Composite Field Multiplier based on Look-Up Table for Elliptic Curve Cryptography Implementation

    Directory of Open Access Journals (Sweden)

    Marisa W. Paryasto

    2013-09-01

    Full Text Available Implementing a secure cryptosystem requires operations involving hundreds of bits. One of the most recommended algorithm is Elliptic Curve Cryptography (ECC. The complexity of elliptic curve algorithms and parameters with hundreds of bits requires specific design and implementation strategy. The design architecture must be customized according to security requirement, available resources and parameter choices. In this work we propose the use of composite field to implement finite field multiplication for ECC implementation. We use 299-bit keylength represented in GF((21323 instead of in GF(2299. Composite field multiplier can be implemented using different multiplier for ground-field and for extension field. In this paper, LUT is used for multiplication in the ground-field and classic multiplieris used for the extension field multiplication. A generic architecture for the multiplier is presented. Implementation is done with VHDL with the target device Altera DE2. The work in this paper uses the simplest algorithm to confirm the idea that by dividing field into composite, use different multiplier for base and extension field would give better trade-off for time and area. This work will be the beginning of our more advanced further research that implements composite-field using Mastrovito Hybrid, KOA and LUT.

  10. Composite Field Multiplier based on Look-Up Table for Elliptic Curve Cryptography Implementation

    Directory of Open Access Journals (Sweden)

    Marisa W. Paryasto

    2012-04-01

    Full Text Available Implementing a secure cryptosystem requires operations involving hundreds of bits. One of the most recommended algorithm is Elliptic Curve Cryptography (ECC. The complexity of elliptic curve algorithms and parameters with hundreds of bits requires specific design and implementation strategy. The design architecture must be customized according to security requirement, available resources and parameter choices. In this work we propose the use of composite field to implement finite field multiplication for ECC implementation. We use 299-bit keylength represented in GF((21323 instead of in GF(2299. Composite field multiplier can be implemented using different multiplier for ground-field and for extension field. In this paper, LUT is used for multiplication in the ground-field and classic multiplieris used for the extension field multiplication. A generic architecture for the multiplier is presented. Implementation is done with VHDL with the target device Altera DE2. The work in this paper uses the simplest algorithm to confirm the idea that by dividing field into composite, use different multiplier for base and extension field would give better trade-off for time and area. This work will be the beginning of our more advanced further research that implements composite-field using Mastrovito Hybrid, KOA and LUT.

  11. Efficient Lookup Table-Based Adaptive Baseband Predistortion Architecture for Memoryless Nonlinearity

    Directory of Open Access Journals (Sweden)

    G. Tong Zhou

    2010-01-01

    Full Text Available Digital predistortion is an effective means to compensate for the nonlinear effects of a memoryless system. In case of a cellular transmitter, a digital baseband predistorter can mitigate the undesirable nonlinear effects along the signal chain, particularly the nonlinear impairments in the radiofrequency (RF amplifiers. To be practically feasible, the implementation complexity of the predistorter must be minimized so that it becomes a cost-effective solution for the resource-limited wireless handset. This paper proposes optimizations that facilitate the design of a low-cost high-performance adaptive digital baseband predistorter for memoryless systems. A comparative performance analysis of the amplitude and power lookup table (LUT indexing schemes is presented. An optimized low-complexity amplitude approximation and its hardware synthesis results are also studied. An efficient LUT predistorter training algorithm that combines the fast convergence speed of the normalized least mean squares (NLMSs with a small hardware footprint is proposed. Results of fixed-point simulations based on the measured nonlinear characteristics of an RF amplifier are presented.

  12. Cumulative probability of prostate cancer detection using the international prostate symptom score in a prostate-specific antigen-based population screening program in Japan.

    Science.gov (United States)

    Kitagawa, Yasuhide; Urata, Satoko; Narimoto, Kazutaka; Nakagawa, Tomomi; Izumi, Kouji; Kadono, Yoshifumi; Konaka, Hiroyuki; Mizokami, Atsushi; Namiki, Mikio

    2014-01-01

    The International Prostate Symptom Score (IPSS) is often used as an interview sheet for assessing lower urinary tract symptoms (LUTS) at the time of prostate-specific antigen (PSA) testing during population-based screening for prostate cancer. However, the relationship between prostate cancer detection and LUTS status remains controversial. To elucidate this relationship, the cumulative probability of prostate cancer detection using IPSS in biopsy samples from patients categorized by serum PSA levels was investigated. The clinical characteristics of prostate cancer detected using IPSS during screening were also investigated. A total of 1,739 men aged 54-75 years with elevated serum PSA levels who completed the IPSS questionnaire during the initial population screening in Kanazawa City, Japan and underwent systematic transrectal ultrasonography-guided prostate biopsy between 2000 and 2013 were enrolled in the present study. Of the 1,739 men, 544 (31.3%) were diagnosed with prostate cancer during the observation period. The probability of cancer detection at 3 years in the entire study population was 27.4% and 32.7% for men with IPSS ≤ 7 and those with IPSS ≥ 8, respectively; there was no statistically significant difference between groups. In men with serum PSA levels of 6.1 to 12.0 ng/ mL at initial screening, the probability of cancer detection was significantly higher in men with IPSS ≤ 7 than in those with IPSS ≥ 8. There were no significant differences in clinical characteristics between groups of patients stratified by IPSS. These findings indicate that the use of IPSS for LUTS status evaluation may be useful for prostate cancer detection in the limited range of serum PSA levels.

  13. A minimal SATA III Host Controller based on FPGA

    Science.gov (United States)

    Liu, Hailiang

    2018-03-01

    SATA (Serial Advanced Technology Attachment) is an advanced serial bus which has a outstanding performance in transmitting high speed real-time data applied in Personal Computers, Financial Industry, astronautics and aeronautics, etc. In this express, a minimal SATA III Host Controller based on Xilinx Kintex 7 serial FPGA is designed and implemented. Compared to the state-of-art, registers utilization are reduced 25.3% and LUTs utilization are reduced 65.9%. According to the experimental results, the controller works precisely and steady with the reading bandwidth of up to 536 MB per second and the writing bandwidth of up to 512 MB per second, both of which are close to the maximum bandwidth of the SSD(Solid State Disk) device. The host controller is very suitable for high speed data transmission and mass data storage.

  14. Laser based maintenance technology for PWR power plants

    International Nuclear Information System (INIS)

    Itaru Chida; Masaki Yoda; Naruhiko Mukai; Yuji Sano; Makoto Ochiai; Takahiro Miura; Ryoichi Saeki

    2005-01-01

    Stress corrosion cracking (SCC) is the major factor to reduce the reliability of aged reactor components. Toshiba has developed various laser-based maintenance technologies and already applied them to several existing nuclear power plants. Recently, we have developed the maintenance system for the inner surface of bottom-mounted instruments (BMI) of PWR plants. This system performs nondestructive testing (NDT) and preventive maintenance against SCC by using YAG lasers. Laser ultrasonic testing (LUT) has a great potential to be applied to the remote inspection of reactor components. Laser-induced surface acoustic wave (SAW) inspection system was developed by using a compact probe with a multi-mode optical fiber and an interferometer. This system is used for both detection and depth measurement of surface-breaking cracks. It is confirmed through laboratory studies that the developed system successfully detected and sized micro slits of around 1.0 mm depth on weld metal and heat-affected zone (HAZ). SCCs produced by chemical method were also tested by the system. For the preventive maintenance treatment, laser-peening (LP) technology was developed and already applied to several reactor components in operating BWR plants. LP is a novel process to improve residual stress from tensile to compressive on material surface layer by irradiating focused high-power laser pulses in water. We have developed a fiber-delivered LP (FLP) system as a preventive maintenance against SCC. For checking the effect of FLP, we carried out FLP experiments on the inner surface of a small tube-shaped Alloy 600 by using this system. After FLP, residual stress was measured by X-ray method for radial and axial directions on the inner surface of the tube, and effectiveness of stress improvement was proved. Based on these experiences, LUT and FLP were applied to Ikata unit-1 of Shikoku Electric Power Company Inc. and successfully treated the inner surface of BMIs. (authors)

  15. An embedded real-time red peach detection system based on an OV7670 camera, ARM cortex-M4 processor and 3D look-up tables.

    Science.gov (United States)

    Teixidó, Mercè; Font, Davinia; Pallejà, Tomàs; Tresanchez, Marcel; Nogués, Miquel; Palacín, Jordi

    2012-10-22

    This work proposes the development of an embedded real-time fruit detection system for future automatic fruit harvesting. The proposed embedded system is based on an ARM Cortex-M4 (STM32F407VGT6) processor and an Omnivision OV7670 color camera. The future goal of this embedded vision system will be to control a robotized arm to automatically select and pick some fruit directly from the tree. The complete embedded system has been designed to be placed directly in the gripper tool of the future robotized harvesting arm. The embedded system will be able to perform real-time fruit detection and tracking by using a three-dimensional look-up-table (LUT) defined in the RGB color space and optimized for fruit picking. Additionally, two different methodologies for creating optimized 3D LUTs based on existing linear color models and fruit histograms were implemented in this work and compared for the case of red peaches. The resulting system is able to acquire general and zoomed orchard images and to update the relative tracking information of a red peach in the tree ten times per second.

  16. An Embedded Real-Time Red Peach Detection System Based on an OV7670 Camera, ARM Cortex-M4 Processor and 3D Look-Up Tables

    Science.gov (United States)

    Teixidó, Mercè; Font, Davinia; Pallejà, Tomàs; Tresanchez, Marcel; Nogués, Miquel; Palacín, Jordi

    2012-01-01

    This work proposes the development of an embedded real-time fruit detection system for future automatic fruit harvesting. The proposed embedded system is based on an ARM Cortex-M4 (STM32F407VGT6) processor and an Omnivision OV7670 color camera. The future goal of this embedded vision system will be to control a robotized arm to automatically select and pick some fruit directly from the tree. The complete embedded system has been designed to be placed directly in the gripper tool of the future robotized harvesting arm. The embedded system will be able to perform real-time fruit detection and tracking by using a three-dimensional look-up-table (LUT) defined in the RGB color space and optimized for fruit picking. Additionally, two different methodologies for creating optimized 3D LUTs based on existing linear color models and fruit histograms were implemented in this work and compared for the case of red peaches. The resulting system is able to acquire general and zoomed orchard images and to update the relative tracking information of a red peach in the tree ten times per second. PMID:23202040

  17. An Embedded Real-Time Red Peach Detection System Based on an OV7670 Camera, ARM Cortex-M4 Processor and 3D Look-Up Tables

    Directory of Open Access Journals (Sweden)

    Marcel Tresanchez

    2012-10-01

    Full Text Available This work proposes the development of an embedded real-time fruit detection system for future automatic fruit harvesting. The proposed embedded system is based on an ARM Cortex-M4 (STM32F407VGT6 processor and an Omnivision OV7670 color camera. The future goal of this embedded vision system will be to control a robotized arm to automatically select and pick some fruit directly from the tree. The complete embedded system has been designed to be placed directly in the gripper tool of the future robotized harvesting arm. The embedded system will be able to perform real-time fruit detection and tracking by using a three-dimensional look-up-table (LUT defined in the RGB color space and optimized for fruit picking. Additionally, two different methodologies for creating optimized 3D LUTs based on existing linear color models and fruit histograms were implemented in this work and compared for the case of red peaches. The resulting system is able to acquire general and zoomed orchard images and to update the relative tracking information of a red peach in the tree ten times per second.

  18. An efficient digital signal processing method for RRNS-based DS-CDMA systems

    Directory of Open Access Journals (Sweden)

    Peter Olsovsky

    2017-09-01

    Full Text Available This paper deals with an efficient method for achieving low power and high speed in advanced Direct-Sequence Code Division Multiple-Access (DS-CDMA wireless communication systems based on the Residue Number System (RNS. A modified algorithm for multiuser DS-CDMA signal generation in MATLAB is proposed and investigated. The most important characteristics of the generated PN code are also presented. Subsequently, a DS-CDMA system based on the combination of the RNS or the so-called Redundant Residue Number System (RRNS is proposed. The enhanced method using a spectrally efficient 8-PSK data modulation scheme to improve the bandwidth efficiency for RRNS-based DS-CDMA systems is presented. By using the C-measure (complexity measure of the error detection function, it is possible to estimate the size of the circuit. Error detection function in RRNSs can be efficiently implemented by LookUp Table (LUT cascades.

  19. A Fuzzy Obstacle Avoidance Controller Using a Lookup-Table Sharing Method and Its Applications for Mobile Robots

    Directory of Open Access Journals (Sweden)

    Jinwook Kim

    2011-11-01

    Full Text Available A Lookup-Table (LUT based design enhances the processing speed of a fuzzy obstacle avoidance controller by reducing the operation time. Also, a LUT sharing method provides efficient ways of reducing the LUT memory size. In order to share the LUT which is used for a fuzzy obstacle avoidance controller, an idea of using a basis function is developed. As applications of the shared LUT-based fuzzy controller, a laser-sensor-based fuzzy controller and an ultrasonic-sensor-based fuzzy controller are introduced in this paper. This paper suggests a LUT sharing method that reduces the LUT buffer size without a significant degradation of the performance. The LUT sharing method makes the buffer size independent of the fuzzy system's complexity. A simulation using MSRDS (Microsoft Robotics Developer Studio is used to evaluate the proposed method. To investigate the performance of the controller, experiments are carried out using a Pioneer P3-DX with LabVIEW as an integration tool. Although the simulation and experiments show little difference between the fully valued LUT-based method and the LUT sharing method in terms of the operation time, the LUT sharing method reduces almost 95% of the full-valued LUT-based buffer size.

  20. Correlation of bladder base elevation with pelvic floor hypertonicity in women with lower urinary tract symptoms.

    Science.gov (United States)

    Chuang, Fei-Chi; Kuo, Hann-Chorng

    2007-01-01

    To determine whether the bladder base elevation as revealed by cystogram under fluoroscopy is associated with pelvic floor hypertonicity or bladder outlet obstruction (BOO) in women. Sixty-two women who were referred to our videourodynamic laboratory for assessment of lower urinary tract symptoms (LUTS) were included in this retrospective analysis. Thirty-one of these women with bladder base elevation-revealed by cystogram under fluoroscopy during videourodynamic study-served as the experimental group, and another group of 31 women without bladder base elevation served as control. None of the patients had neuropathy, previous pelvic surgery or chronic urinary retention. The clinical symptoms, urodynamic diagnosis, and parameters were compared between the two groups. The mean voiding pressure (Pdet.Qmax) and postvoid residual (PVR) were significantly greater, and maximum flow rate (Qmax) and voided volume were significantly lower in the bladder base elevation group. When a Pdet.Qmax of >or=35 cmH2O combined with a Qmax of elevation group had BOO than controls (51.6% vs. 9.7%, P=0.0003). Pelvic floor muscle electromyogram (EMG) was dyscoordinated during the voiding phase in 18 (58.1%) and 9 (29%) of the patients with and without bladder base elevation, respectively (P=0.0212). Women with LUTS and bladder base elevation revealed in the filling phase of videourodynamic study had significantly higher voiding pressure and incidence of dyscoordinated pelvic floor EMG activities during voiding, suggesting a higher incidence of BOO and pelvic floor hypertonicity. Copyright (c) 2007 Wiley-Liss, Inc.

  1. In vitro selection and characterization of single stranded DNA aptamers for luteolin: A possible recognition tool.

    Science.gov (United States)

    Tuma Sabah, Jinan; Zulkifli, Razauden Mohamed; Shahir, Shafinaz; Ahmed, Farediah; Abdul Kadir, Mohammed Rafiq; Zakaria, Zarita

    2018-03-06

    Distinctive bioactivities possessed by luteolin (3', 4', 5, 7-tetrahydroxy-flavone) are advantageous for sundry practical applications. This paper reports the in vitro selection and characterization of single stranded-DNA (ssDNA) aptamers, specific for luteolin (LUT). 76-mer library containing 1015 randomized ssDNA were screened via systematic evolution of ligands by exponential enrichment (SELEX). The recovered ssDNA pool from the 8th round was amplified with unlabeled primers and cloned into PSTBlue-1 vector prior to sequencing. 22 of LUT-binding aptamer variants were further classified into one of the seven groups based on their N40 random sequence regions, wherein one representative from each group was characterized. The dissociation constant of aptamers designated as LUT#28, LUT#20 and LUT#3 was discerned to be 107, 214 and 109 nM, respectively with high binding affinity towards LUT. Prediction analysis of the secondary structure suggested discrete features with typical loop and stem motifs. Furthermore, LUT#3 displayed higher specificity with insignificant binding toward kaempferol and quercetin despite its structural and functional similarity compared to LUT#28 and LUT#20. Further LUT#3 can detect free luteolin within 0.2-1 mM in solution. It was suggested that LUT#3 aptamer were the most suitable for LUT recognition tool at laboratory scale based on the condition tested. Copyright © 2018. Published by Elsevier Inc.

  2. FPGA-based Low Latency Inverse QRD Architecture for Adaptive Beamforming in Phased Array Radars

    Directory of Open Access Journals (Sweden)

    R. Irfan

    2017-09-01

    Full Text Available The main objective of this paper is to facilitate the adaptive beamforming which is one of the most challenging task in phased array radars receivers. Recursive least square (RLS is considered as the most well suited adaptive algorithm for the applications where beamforming is mandatory, because of its good numerical properties and convergence rate. In this paper, some RLS variants are discussed and the most numerically suitable algorithm Inverse QRD is selected for efficient adaptive beamforming. A novel architecture for IQRD RLS is also presented, which offers low latency and low area occupation for Field Programmable Gate Array (FPGA implementation. This approach reduces the computations by utilizing the standard pipelining methodology. Hence, efficient adder and multipliers and LUT based solution for square root and division, has highly enhanced the performance of the algorithm. The proposed IQRD RLS architecture has been coded in Verilog and analyze its performance in terms of throughput, hardware resources and efficiency.

  3. Proposal for a remote sensing trophic state index based upon Thematic Mapper/Landsat images

    Directory of Open Access Journals (Sweden)

    Evlyn Márcia Leão de Moraes Novo

    2013-12-01

    Full Text Available This work proposes a trophic state index based on the remote sensing retrieval of chlorophyll-α concentration. For that, in situ Bidirectional Reflectance Factor (BRF data acquired in the Ibitinga reservoir were resampled to match Landsat/TM spectral simulated bands (TM_sim bands and used to run linear correlation with concurrent measurements of chlorophyll-α concentration. Monte Carlo simulation was then applied to select the most suitable model relating chlorophyll-α concentration and simulated TM/Landsat reflectance. TM4_sim/TM3_sim ratio provided the best model with a R2 value of 0.78. The model was then inverted to create a look-up-table (LUT relating TM4_sim/TM3_sim ratio intervals to chlorophyll-α concentration trophic state classes covering the entire range measured in the reservoir. Atmospheric corrected Landsat TM images converted to surface reflectance were then used to generate a TM4/TM3 ratio image. The ratio image frequency distribution encompassed the range of TM4_sim/TM3_sim ratio indicating agreement between in situ and satellite data and supporting the use of satellite data to map chlorophyll- concentration trophic state distribution in the reservoir. Based on that, the LUT was applied to a Landsat/TM ratio image to map the spatial distribution of chlorophyll- trophic state classes in Ibitinga reservoir. Despite the stochastic selection of TM4_sim/TM3_sim ratio as the best input variable for modeling the chlorophyll-α concentration, it has a physical basis: high concentration of phytoplankton increases the reflectance in the near-infrared (TM4 and decreases the reflectance in the red (TM3. The band ratio, therefore, enhances the relationship between chlorophyll- concentration and remotely sensed reflectance.

  4. Satellite-based PM2.5 estimation using fine-mode aerosol optical thickness over China

    Science.gov (United States)

    Yan, Xing; Shi, Wenzhong; Li, Zhanqing; Li, Zhengqiang; Luo, Nana; Zhao, Wenji; Wang, Haofei; Yu, Xue

    2017-12-01

    Accurate estimation of ground-level PM2.5 from satellite-derived aerosol optical thickness (AOT) presents various difficulties. This is because the association between AOT and surface PM2.5 can be affected by many factors, such as the contribution of fine mode AOT (FM-AOT) and the weather conditions. In this study, we compared the total AOT and FM-AOT for surface PM2.5 estimation using ground-based measurements collected in Xingtai, China from May to June 2016. The correlation between PM2.5 and FM-AOT was higher (r = 0.74) than that between PM2.5 and total AOT (r = 0.49). Based on FM-AOT, we developed a ground-level PM2.5 retrieval method that incorporated a Simplified Aerosol Retrieval Algorithm (SARA) AOT, look-up table-spectral deconvolution algorithm (LUT-SDA) fine mode fraction (FMF), and the PM2.5 remote sensing method. Due to the strong diurnal variations displayed by the particle density of PM2.5, we proposed a pseudo-density for PM2.5 retrieval based on real-time visibility data. We applied the proposed method to determine retrieval surface PM2.5 concentrations over Beijing from December 2013 to June 2015 on cloud-free days. Compared with Aerosol Robotic Network (AERONET) data, the LUT-SDA FMF was more easily available than the Moderate Resolution Imaging Spectroradiometer (MODIS) FMF. The derived PM2.5 results were compared with the ground-based monitoring values (30 stations), yielding an R2 of 0.64 and root mean square error (RMSE) = 18.9 μg/m3 (N = 921). This validation demonstrated that the developed method performed well and produced reliable results.

  5. Адаптация метода внедрения цифровых водяных знаков F5 к среде LUT-ориентированных информационных контейнеров

    OpenAIRE

    Защелкин, К. В.; Иванова, Е. Н.

    2016-01-01

    Рассмотрены подходы к контролю информационных объектов при помощи технологии цифровых водяных знаков. Предложен метод внедрения цифрового водяного знака в информационные контейнеры с LUT-ориентированной архитектурой. Метод основан на использовании композиции известного метода F5, применяемого для контроля мультимедийных информационных объектов, и подходов к внедрению дополнительной информации в LUT-ориентированные контейнеры. The approaches to the information objects control have been cons...

  6. Base

    DEFF Research Database (Denmark)

    Hjulmand, Lise-Lotte; Johansson, Christer

    2004-01-01

    BASE - Engelsk basisgrammatik er resultatet af Lise-Lotte Hjulmands grundige bearbejdning og omfattende revidering af Christer Johanssons Engelska basgrammatik. Grammatikken adskiller sig fra det svenske forlæg på en lang række punkter. Den er bl.a. tilpasset til et dansk publikum og det danske...

  7. An FPGA-Integrated Time-to-Digital Converter Based on a Ring Oscillator for Programmable Delay Line Resolution Measurement

    Directory of Open Access Journals (Sweden)

    Chao Chen

    2014-01-01

    Full Text Available We describe the architecture of a time-to-digital converter (TDC, specially intended to measure the delay resolution of a programmable delay line (PDL. The configuration, which consists of a ring oscillator, a frequency divider (FD, and a period measurement circuit (PMC, is implemented in a field programmable gate array (FPGA device. The ring oscillator realized in loop containing a PDL and a look-up table (LUT generates periodic oscillatory pulses. The FD amplifies the oscillatory period from nanosecond range to microsecond range. The time-to-digital conversion is based on counting the number of clock cycles between two consecutive pulses of the FD by the PMC. Experiments have been conducted to verify the performance of the TDC. The achieved relative errors for four PDLs are within 0.50%–1.21% and the TDC has an equivalent resolution of about 0.4 ps.

  8. An Approach for the Long-Term 30-m Land Surface Snow-Free Albedo Retrieval from Historic Landsat Surface Reflectance and MODIS-based A Priori Anisotropy Knowledge

    Science.gov (United States)

    Shuai, Yanmin; Masek, Jeffrey G.; Gao, Feng; Schaaf, Crystal B.; He, Tao

    2014-01-01

    Land surface albedo has been recognized by the Global Terrestrial Observing System (GTOS) as an essential climate variable crucial for accurate modeling and monitoring of the Earth's radiative budget. While global climate studies can leverage albedo datasets from MODIS, VIIRS, and other coarse-resolution sensors, many applications in heterogeneous environments can benefit from higher-resolution albedo products derived from Landsat. We previously developed a "MODIS-concurrent" approach for the 30-meter albedo estimation which relied on combining post-2000 Landsat data with MODIS Bidirectional Reflectance Distribution Function (BRDF) information. Here we present a "pre-MODIS era" approach to extend 30-m surface albedo generation in time back to the 1980s, through an a priori anisotropy Look-Up Table (LUT) built up from the high quality MCD43A BRDF estimates over representative homogenous regions. Each entry in the LUT reflects a unique combination of land cover, seasonality, terrain information, disturbance age and type, and Landsat optical spectral bands. An initial conceptual LUT was created for the Pacific Northwest (PNW) of the United States and provides BRDF shapes estimated from MODIS observations for undisturbed and disturbed surface types (including recovery trajectories of burned areas and non-fire disturbances). By accepting the assumption of a generally invariant BRDF shape for similar land surface structures as a priori information, spectral white-sky and black-sky albedos are derived through albedo-to-nadir reflectance ratios as a bridge between the Landsat and MODIS scale. A further narrow-to-broadband conversion based on radiative transfer simulations is adopted to produce broadband albedos at visible, near infrared, and shortwave regimes.We evaluate the accuracy of resultant Landsat albedo using available field measurements at forested AmeriFlux stations in the PNW region, and examine the consistency of the surface albedo generated by this approach

  9. Implementation of Analytical Energy Gradient of Spin-Dependent General Hartree-Fock Method Based on the Infinite-Order Douglas-Kroll-Hess Relativistic Hamiltonian with Local Unitary Transformation.

    Science.gov (United States)

    Nakajima, Yuya; Seino, Junji; Nakai, Hiromi

    2016-05-10

    An analytical energy gradient for the spin-dependent general Hartree-Fock method based on the infinite-order Douglas-Kroll-Hess (IODKH) method was developed. To treat realistic systems, the local unitary transformation (LUT) scheme was employed both in energy and energy gradient calculations. The present energy gradient method was numerically assessed to investigate the accuracy in several diatomic molecules containing fifth- and sixth-period elements and to examine the efficiency in one-, two-, and three-dimensional silver clusters. To arrive at a practical calculation, we also determined the geometrical parameters of fac-tris(2-phenylpyridine)iridium and investigated the efficiency. The numerical results confirmed that the present method describes a highly accurate relativistic effect with high efficiency. The present method can be a powerful scheme for determining geometries of large molecules, including heavy-element atoms.

  10. A trifid pelvis in a patient with a solitary kidney with LUTS: An unusual presentation

    Directory of Open Access Journals (Sweden)

    Guntaka Ajay Kumar

    2013-01-01

    Full Text Available Trifid pelvis is one of the rarest congenital malformations of the upper urinary tract. Trifid pelvis in a solitary kidney is a very rare presentation. A young male adult presented to us with dysuria and white discharge per urethra since 1 year on and off. Urine examination showed few pus cells and white blood cells. Initial imaging by ultrasonography revealed a solitary right kidney. A computed tomography urogram showed a normal right kidney with a trifid pelvis and left ectopic hypoplastic kidney with focal thickening at the right posterolateral aspect of the vesicoureteric junction. Cystoscopy revealed normal anterior and posterior urethra, verumontanum extending until bladder neck, no ejaculatory duct openings noted, and right ureteric orifice placed slightly laterally, with the left ureteric orifice not visualized. Right RGP confirmed a trifid pelvis. A high index of suspicion is needed for the identification of this rare condition.

  11. Prevalence of Lower Urinary Tract Symptoms (LUTS) in Stroke Patients. A cross-sectional, clinical survey

    DEFF Research Database (Denmark)

    Tibæk, Sigrid; Gard, Gunvor; Klarskov, Peter

    2008-01-01

    on their daily life (bother score) over the previous fortnight. Of 519 stroke patients invited, 482 subjects were eligible. RESULTS: The response rate was 84%. The period prevalence of at least one symptom was 94%; the most frequent symptom was nocturia (76%) followed by urgency (70%) and daytime frequency (59......%). The most severe symptom was urgency followed by nocturia and daytime frequency. Among respondents who had at least one symptom, the prevalence of bother was 78%. Likewise the most frequent bothersome symptom was nocturia (53%), followed by urgency (48%) and daytime frequency (40%). Paresis in legs...

  12. Human Factors Assessment of the UH-60M Crew Station During the Limited User Test (LUT)

    National Research Council Canada - National Science Library

    Havir, Thomas J; Durbin, David B; Frederick, Lorraine J; Hicks, Jamison S

    2006-01-01

    The utility helicopter (UH)-60M Product Manager requested the U.S. Army Research Laboratory's Human Research and Engineering Directorate to participate in the Limited User Test for the UH-60M Black Hawk...

  13. Purjetamise järelkasv asus Eestis Euroopa osavaimat selgitama / Priit Luts

    Index Scriptorium Estoniae

    Luts, Priit

    2006-01-01

    Vt. ka Postimees : na russkom jazõke 27. juuli, lk. 13. Tallinnas peetavatel Euroopa meistrivõistlustel purjetamise Zoom8 klassis hoiab Sten-Mark Bachmann avapäeva kolme sõidu järel kuuendat kohta, tütarlastest asub Marit Kaal 14. positsioonil

  14. Recent research on the role of urodynamic study in the diagnosis and treatment of male lower urinary tract symptoms and urinary incontinence.

    Science.gov (United States)

    Jiang, Yuan-Hong; Kuo, Hann-Chorng

    2017-01-01

    Although evidence shows that urodynamic study may not improve outcomes, it can be used to evaluate men with lower urinary tract symptoms (LUTSs) which have not been adequately delineated and treated. In young men with LUTS not responding to treatment based on clinical examination, or elderly men with LUTS and incontinence, a complete urodynamic evaluation is mandatory to understand the pathophysiology underlying LUTS, such as bladder outlet obstruction (BOO), detrusor overactivity, and detrusor underactivity. Preoperative urodynamic study-proven BOO is a predictor of a successful surgical outcome. An urodynamic study should be performed when patients with LUTS are planning to undergo surgical treatment for benign prostatic obstruction.

  15. A fast point-cloud computing method based on spatial symmetry of Fresnel field

    Science.gov (United States)

    Wang, Xiangxiang; Zhang, Kai; Shen, Chuan; Zhu, Wenliang; Wei, Sui

    2017-10-01

    Aiming at the great challenge for Computer Generated Hologram (CGH) duo to the production of high spatial-bandwidth product (SBP) is required in the real-time holographic video display systems. The paper is based on point-cloud method and it takes advantage of the propagating reversibility of Fresnel diffraction in the propagating direction and the fringe pattern of a point source, known as Gabor zone plate has spatial symmetry, so it can be used as a basis for fast calculation of diffraction field in CGH. A fast Fresnel CGH method based on the novel look-up table (N-LUT) method is proposed, the principle fringe patterns (PFPs) at the virtual plane is pre-calculated by the acceleration algorithm and be stored. Secondly, the Fresnel diffraction fringe pattern at dummy plane can be obtained. Finally, the Fresnel propagation from dummy plan to hologram plane. The simulation experiments and optical experiments based on Liquid Crystal On Silicon (LCOS) is setup to demonstrate the validity of the proposed method under the premise of ensuring the quality of 3D reconstruction the method proposed in the paper can be applied to shorten the computational time and improve computational efficiency.

  16. Lower Urinary Tract Terminology in Daytime Lower Urinary Tract Symptoms in Children: A View of the Pediatric Urologist.

    Science.gov (United States)

    van den Heijkant, Marleen; Bogaert, Guy

    2017-04-01

    Epidemiological studies have demonstrated rates of lower urinary tract (LUT) symptoms in school-aged children as high as 20%. Symptoms of LUT may have significant social consequences. The diagnosis of LUT symptoms in children is mainly based on the subjective impression, and it is therefore important to translate the clinical impression into a structured LUT terminology. To have a view, as a pediatric urologist and a urologist, of the LUT terminology proposed by the Standardization Committee of the International Children Continence Society. In addition to the known LUT terminology conditions that are mainly functional, we propose to add specific urological malformations due to congenital or acquired urological conditions, leading to LUT symptoms. In addition to the opinion-based statements and practical clinical suggestions, we have added recent literature to support the statements and suggestions. LUT symptoms in children can be from a functional or an anatomical origin. As the diagnosis is often made on the basis of subjective and variable information, experience of the medical caretaker is also important to allow categorization of the condition of the child into a well-structured LUT terminology. Medical caretakers should be aware of possible evidence-based diagnostic tools and be able to follow guidelines and algorithms to come to the correct diagnosis and condition of the child to allow one to distinguish functional from congenital or acquired anatomical LUT conditions. Up to 20% of school-aged children can have wetting problems. Some wetting problems can be temporary, due to the young age, stress, psychological problems, or other associated problems such as bowel dysfunction. However, some wetting problems in children are due to a condition of the kidneys, bladder, or elsewhere in the urinary tract since they were born, and should be well investigated, as in most such situations the LUT problems could be treated surgically. Copyright © 2017 European

  17. Optimized fringe patterns based on dual-frequency phase-shift technology in fringe projection profilometry

    Science.gov (United States)

    Yu, Hao; Lin, Liangzhao; Li, Xiaoying; Lu, Xiaoxu; Zhong, Liyun; Liu, Shengde

    2017-09-01

    A look-up table (LUT) method for solving the problem of phase unwrapping is presented. Considering the effect of noise on the unwrapping process, a concept called "tolerance" is advanced, and an associated algorithm called the "equipartition of tolerance" algorithm is proposed. The proposed algorithm eliminates the need for a high signal-to-noise ratio while retaining the LUT method's advantages of extended measurement range and high precision. Further, it improves the tolerance of the LUT method and enables reconstruction of discontinuous objects. In simulations and experiments conducted, the proposed algorithm successfully unwrapped the absolute phase of a slope model and a three-step model. The proposed algorithm is significantly more accurate and has better stability and sensitivity than the heterodyne algorithm.

  18. Evidence-based guidelines for the treatment of lower urinary tract symptoms related to uncomplicated benign prostatic hyperplasia in Italy: updated summary from AURO.it

    Science.gov (United States)

    Casarico, Antonio; Fandella, Andrea; Galetti, Caterina; Hurle, Rodolfo; Mazzini, Elisa; Niro, Ciro; Perachino, Massimo; Sanseverino, Roberto; Pappagallo, Giovanni Luigi

    2012-01-01

    Background: The first Italian national guidelines were developed by the Italian Association of Urologists and published in 2007. Since then, a number of new drugs or classes of drugs have emerged for the treatment of lower urinary tract symptoms (LUTS) related to benign prostatic hyperplasia (BPH), new data have emerged on medical therapy (monotherapies and combination therapies), new surgical techniques have come into practice, and our understanding of disease pathogenesis has increased. Consequently, a new update of the guidelines has become necessary. Methods: A structured literature review was conducted to identify relevant papers published between 1 August 2006 and 12 December 2010. Publications before or after this timeframe were considered only if they were recognised as important milestones in the field or if the literature search did not identify publications within this timeframe. The quality of evidence and strength of recommendations were determined according to the Grading of Recommendations Assessment, Development and Evaluation framework. Main findings: Decisions on therapeutic intervention should be based on the impact of symptoms on quality of life (QoL) rather than the severity of symptoms (International Prostate Symptom Score (IPSS) score). A threshold for intervention was therefore based on the IPSS Q8, with intervention recommended for patients with a score of at least 4. Several differences in clinical recommendations have emerged. For example, combination therapy with a 5α-reductase inhibitor plus α blocker is now the recommended option for the treatment of patients at risk of BPH progression. Other differences include the warning of potential worsening of cognitive disturbances with use of anticholinergics in older patients, the distinction between Serenoa repens preparations (according to the method of extraction), and the clearly defined threshold of prostate size for performing open surgery (>80 g). While the recommendations included in

  19. Maternal lower urinary tract injury at the time of Cesarean delivery.

    Science.gov (United States)

    Oliphant, Sallie S; Bochenska, Katarzyna; Tolge, Madeline E; Catov, Janet M; Zyczynski, Halina M

    2014-12-01

    To determine the incidence of lower urinary tract (LUT) injury at the time of Cesarean delivery (CD) and to identify factors associated with LUT injury. Cases of LUT injury at delivery between 2001 and 2012, were identified by ICD-9 code. Chart review was utilized for verification and descriptive data collection. LUT injury incidence rates were calculated using annual delivery totals and trends over time were calculated using simple linear regression. LUT injury was classified as full-thickness bladder injury (including ureteral injury) or partial-thickness bladder injury based on degree of injury and post-operative intervention. Each case was year-matched to generate two CD controls. Logistic regression analysis was performed using maternal, delivery, and health system characteristics to identify factors associated with full or partial injury. Appropriate statistical analyses were performed with significance at p LUT injury did not vary significantly (p = 0.658). Of the 72 LUT injuries reported, 39 (54 %) were full-thickness bladder, 2 (3 %) ureteral, and 31 (43 %) were partial-thickness bladder injuries. Full injury, controlling for repeat CD, was associated with increasing maternal age, transfusion, and active second stage of labor. Partial injury, was associated with increasing maternal age and delivery in the first half of the academic year. Despite an increasing volume of CDs, LUT injury remained relatively uncommon (0.3 % of all CDs). Full and partial bladder injuries have unique risk profiles.

  20. Predictors of positive or negative legionella urinary antigen test in community-acquired pneumonia.

    Science.gov (United States)

    Roed, Torsten; Schønheyder, Henrik C; Nielsen, Henrik

    2015-07-01

    Legionella pneumonia remains a diagnostic challenge. The legionella urinary antigen test (LUT) primarily detects Legionella pneumophila serogroup 1, accounting for 64% of Danish cases, and is often the only legionella test performed. We aimed to identify variables predictive of a positive or negative test result and to explore how the LUT was used in clinical practice. The study was an audit-based cohort study. LUT-positive patients were compared with three randomly selected age- and gender-matched LUT-negative referent patients admitted at a Danish university hospital during 2003-2013. Data were extracted from charts and databases. Positive and negative likelihood ratios (LR+ and LR-) were calculated. For CURB-65 and sepsis, sensitivity analyses were made due to incomplete data. In all, 25 cases were compared with 75 referents. Factors associated with LUT positivity included recent travel outside Scandinavia (LR + 5.3), Na(+) 200 mg/L (LR + 3.5), temperature > 39 °C (LR + 3.5), and CURB-65 score ≥ 3 (LR + 3.0-15.0, depending on the model). Decreasing the likelihood of LUT positivity were CRP LUT. The LUT is often used inappropriately and should be accompanied by PCR analysis.

  1. Case study of atmospheric correction on CCD data of HJ-1 satellite based on 6S model

    International Nuclear Information System (INIS)

    Xue, Xiaoiuan; Meng, Oingyan; Xie, Yong; Sun, Zhangli; Wang, Chang; Zhao, Hang

    2014-01-01

    In this study, atmospheric radiative transfer model 6S was used to simulate the radioactive transfer process in the surface-atmosphere-sensor. An algorithm based on the look-up table (LUT) founded by 6S model was used to correct (HJ-1) CCD image pixel by pixel. Then, the effect of atmospheric correction on CCD data of HJ-1 satellite was analyzed in terms of the spectral curves and evaluated against the measured reflectance acquired during HJ-1B satellite overpass, finally, the normalized difference vegetation index (NDVI) before and after atmospheric correction were compared. The results showed: (1) Atmospheric correction on CCD data of HJ-1 satellite can reduce the ''increase'' effect of the atmosphere. (2) Apparent reflectance are higher than those of surface reflectance corrected by 6S model in band1∼band3, but they are lower in the near-infrared band; the surface reflectance values corrected agree with the measured reflectance values well. (3)The NDVI increases significantly after atmospheric correction, which indicates the atmospheric correction can highlight the vegetation information

  2. A High-Linearity, Ring-Oscillator-Based, Vernier Time-to-Digital Converter Utilizing Carry Chains in FPGAs

    Science.gov (United States)

    Cui, Ke; Ren, Zhongjie; Li, Xiangyu; Liu, Zongkai; Zhu, Rihong

    2017-01-01

    Time-to-digital converters (TDCs) using dedicated carry chains of field programmable gate arrays (FPGAs) are usually organized in tapped-delay-line type which are intensively researched in recent years. However this method incurs poor differential nonlinearity (DNL) which arises from the inherent uneven bin granularity. This paper proposes a TDC architecture which utilizes the carry chains in a quite different manner in order to alleviate this long-standing problem. Two independent carry chains working as the delay lines for the fine time interpolation are organized in a ring-oscillator-based Vernier style and the time difference between them is finely adjusted by assigning different number of basic delay cells. A specific design flow is described to obtain the desired delay difference. The TDC was implemented on a Stratix III FPGA. Test results show that the obtained resolution is 31 ps and the DNL\\INL is in the range of (-0.080 LSB, 0.073 LSB)(-0.087 LSB, 0.091 LSB). This demonstrates that the proposed architecture greatly improves linearity compared to previous techniques. Additionally the resource cost is rather low which uses only 319 LUTs and 104 registers per TDC channel.

  3. An accurate projector gamma correction method for phase-measuring profilometry based on direct optical power detection

    Science.gov (United States)

    Liu, Miao; Yin, Shibin; Yang, Shourui; Zhang, Zonghua

    2015-10-01

    Digital projector is frequently applied to generate fringe pattern in phase calculation-based three dimensional (3D) imaging systems. Digital projector often works with camera in this kind of systems so the intensity response of a projector should be linear in order to ensure the measurement precision especially in Phase-Measuring Profilometry (PMP). Some correction methods are often applied to cope with the non-linear intensity response of the digital projector. These methods usually rely on camera and gamma function is often applied to compensate the non-linear response so the correction performance is restricted by the dynamic range of camera. In addition, the gamma function is not suitable to compensate the nonmonotonicity intensity response. This paper propose a gamma correction method by the precisely detecting the optical energy instead of using a plate and camera. A photodiode with high dynamic range and linear response is used to directly capture the light optical from the digital projector. After obtaining the real gamma curve precisely by photodiode, a gray level look-up table (LUT) is generated to correct the image to be projected. Finally, this proposed method is verified experimentally.

  4. Phase error compensation for a 3-D shape measurement system based on the phase-shifting method

    Science.gov (United States)

    Zhang, Song; Huang, Peisen S.

    2005-11-01

    This paper describes a novel phase error compensation method for reducing the measurement error caused by non-sinusoidal waveforms in the phase-shifting method. For 3D shape measurement systems using commercial video projectors, the non-sinusoidal nature of the projected fringe patterns as a result of the nonlinear gamma curve of the projectors causes significant phase measurement error and therefore shape measurement error. The proposed phase error compensation method is based on our finding that the phase error due to the non-sinusoidal waveform of the fringe patterns depends only on the nonlinearity of the projector's gamma curve. Therefore, if the projector's gamma curve is calibrated and the phase error due to the nonlinearity of the gamma curve is calculated, a look-up-table (LUT) that stores the phase error can be constructed for error compensation. Our experimental results demonstrate that by using the proposed method, the measurement error can be reduced by 10 times. In addition to phase error compensation, a similar method is also proposed to correct the nonsinusoidality of the fringe patterns for the purpose of generating a more accurate flat image of the object for texture mapping. While not relevant to applications in metrology, texture mapping is important for applications in computer vision and computer graphics.

  5. Fault-Tolerant Sequencer Using FPGA-Based Logic Designs for Space Applications

    Science.gov (United States)

    2013-12-01

    Board PAL programmable array logic PCB printed circuit board PLA programmable logic array PLD programmable logic device PLL phase -locked...FPGA Resources used for three different sequencer designs Sequencer Design Type Resource Single Manual TMR Software TMR Inverters 6 6 6 Two...using a three -input LUT. ........................................................84 Figure 62. RTL schematic produced following synthesis of a timer

  6. Kui kõik on kõigile võlgu / Liivi Tamm ; kommenteerinud Indrek Peterson, Enno Rebane, Jaan Luts

    Index Scriptorium Estoniae

    Tamm, Liivi, 1978-

    2010-01-01

    Ehituses on peatöövõtjaid, kes on võlgu alltöövõtjatele või tarnijatele, maksmata jäetakse nii meelega kui ka rahapuudusest. Võlgu olemise probleem on terav ka ehitusmaterjalitootmise sektoris

  7. "Avatud värav - Open Gate" : das Kinder-, Jugend- Schutz- und Ausbilduingshaus Kiekel/Kiikla / Luts Dettmann

    Index Scriptorium Estoniae

    Dettmann, Lutz

    2016-01-01

    Väikesest Kiikla mõisast Ida-Virumaal, kus mõisniku külaliseks oli sageli ka Friedrich Ferdinand von Kotzebue (1761-1819). 2000. aastal alustati seal projektiga "Avatud värav". Selle raames tegutseb Kiiklas alates 2008. aastast lastekodu

  8. Recent advances in the understanding of male lower urinary tract symptoms (LUTS [version 1; referees: 2 approved

    Directory of Open Access Journals (Sweden)

    Arman A. Kahokehr

    2016-04-01

    Full Text Available In this review, we have looked at three important areas in understanding male lower urinary tract symptoms. These are improvement in terminology, detrusor underactivity, and nocturia. Benign prostatic hyperplasia leading to bladder outlet obstruction has been covered in a previous review.

  9. Perioperative and economic analysis of surgical treatments for benign prostatic hyperplasia: A study of the French committee on LUT.

    Science.gov (United States)

    Mathieu, R; Lebdai, S; Cornu, J N; Benchikh, A; Azzouzi, A R; Delongchamps, N B; Dumonceau, O; Faix, A; Fourmarier, M; Haillot, O; Lukacs, B; Misrai, V; de La Taille, A; Robert, G; Descazeaud, A

    2017-05-01

    To evaluate perioperative cost related to surgical treatments of benign prostatic obstruction (BPO): photoselective vaporization of the prostate (pvp), holmium/thullium laser enucleation (HoLEP/ThuLEP), transurethral resection of the prostate (TURP) and open prostatectomy (OP). We retrospectively collected data from 237 patients who consecutively underwent a surgical treatment for BPH between January 2012 and June 2013 at nine institutions in France. An economic simulation model was constructed to estimate the cost of hospitalization related to surgical procedure from the hospital perspective and a cost minimization analysis was performed. TURP, OP, HoLEP/ThuLEP and PVP were performed in 99 (42%), 23 (10%), 64 (27%) and 51 (21%) patients, respectively. For men with prostate size<80mL: mean operative time was shorter with mTURP and PVP than HoLEP/thuLEP (P<0.001); Mean postoperative length of stay were 1.9, 3 vs. 3.4 days, for HoLEP/Thulep, PVP and TURP respectively (P=0.006); Costs of first hospitalization were comparable between HoLEP/ThuLEP and TURP but higher with PVP (P<0.001). For men with prostate size≥80mL: Compared to PVP and HoLEP/ThuLEP, OP was associated with shorter operative time (P<0.001) but longer length of stay (2.4, 4.2 vs. 7.8 days, respectively, P<0.0001); Costs of first hospitalization were significantly higher with OP than HoLEP/ThuLEP or PVP (P<0.001). PVP and HoLEP/ThuLEP were associated with a shorter LOS than TURP and OP. This benefit suggests these procedures could be more cost effective than OP, but still not cheaper alternatives to TURP. 5. Copyright © 2017. Published by Elsevier Masson SAS.

  10. Arsti eraõigusliku vastutuse põhimõtted Saksa õiguses / Antje Reumann de Fernandez ; tõlkinud Marju Luts

    Index Scriptorium Estoniae

    Reumann de Fernandez, Antje

    1998-01-01

    Ravilepingust, ravivea mõistest, liikidest ja tõendamisest, omavolilisest ravist ja terapeutilise teavitamise kohustusest Saksamaal ning Saksamaa Liidu Ülemkohtu meditsiiniõiguse alasest kohtupraktikast

  11. Physically-based Canopy Reflectance Model Inversion of Vegetation Biophysical-Structural Information from Terra-MODIS Imagery in Boreal and Mountainous Terrain for Ecosystem, Climate and Carbon Models using the BIOPHYS-MFM Algorithm

    Science.gov (United States)

    Peddle, D. R.; Hall, F.

    2009-12-01

    The BIOPHYS algorithm provides innovative and flexible methods for the inversion of canopy reflectance models (CRM) to derive essential biophysical structural information (BSI) for quantifying vegetation state and disturbance, and for input to ecosystem, climate and carbon models. Based on spectral, angular, temporal and scene geometry inputs that can be provided or automatically derived, the BIOPHYS Multiple-Forward Mode (MFM) approach generates look-up tables (LUTs) that comprise reflectance data, structural inputs over specified or computed ranges, and the associated CRM output from forward mode runs. Image pixel and model LUT spectral values are then matched. The corresponding BSI retrieved from the LUT matches is output as the BSI results. BIOPHYS-MFM has been extensively used with agencies in Canada and the USA over the past decade (Peddle et al 2000-09; Soenen et al 2005-09; Gamon et al 2004; Cihlar et al 2003), such as CCRS, CFS, AICWR, NASA LEDAPS, BOREAS and MODIS Science Teams, and for the North American Carbon Program. The algorithm generates BSI products such as land cover, biomass, stand volume, stem density, height, crown closure, leaf area index (LAI) and branch area, crown dimension, productivity, topographic correction, structural change from harvest, forest fires and mountain pine beetle damage, and water / hydrology applications. BIOPHYS-MFM has been applied in different locations in Canada (six provinces from Newfoundland to British Columbia) and USA (NASA COVER, MODIS and LEDAPS sites) using 7 different CRM models and a variety of imagery (e.g. MODIS, Landsat, SPOT, IKONOS, airborne MSV, MMR, casi, Probe-1, AISA). In this paper we summarise the BIOPHYS-MFM algorithm and results from Terra-MODIS imagery from MODIS validation sites at Kananaskis Alberta in the Canadian Rocky Mountains, and from the Boreal Ecosystem Atmosphere Study (BOREAS) in Saskatchewan Canada. At the montane Rocky Mountain site, BIOPHYS-MFM density estimates were within

  12. Local unitary transformation method for large-scale two-component relativistic calculations. II. Extension to two-electron Coulomb interaction.

    Science.gov (United States)

    Seino, Junji; Nakai, Hiromi

    2012-10-14

    The local unitary transformation (LUT) scheme at the spin-free infinite-order Douglas-Kroll-Hess (IODKH) level [J. Seino and H. Nakai, J. Chem. Phys. 136, 244102 (2012)], which is based on the locality of relativistic effects, has been extended to a four-component Dirac-Coulomb Hamiltonian. In the previous study, the LUT scheme was applied only to a one-particle IODKH Hamiltonian with non-relativistic two-electron Coulomb interaction, termed IODKH/C. The current study extends the LUT scheme to a two-particle IODKH Hamiltonian as well as one-particle one, termed IODKH/IODKH, which has been a real bottleneck in numerical calculation. The LUT scheme with the IODKH/IODKH Hamiltonian was numerically assessed in the diatomic molecules HX and X(2) and hydrogen halide molecules, (HX)(n) (X = F, Cl, Br, and I). The total Hartree-Fock energies calculated by the LUT method agree well with conventional IODKH/IODKH results. The computational cost of the LUT method is reduced drastically compared with that of the conventional method. In addition, the LUT method achieves linear-scaling with respect to the system size and a small prefactor.

  13. EAU Guidelines on the Assessment of Non-neurogenic Male Lower Urinary Tract Symptoms including Benign Prostatic Obstruction.

    Science.gov (United States)

    Gratzke, Christian; Bachmann, Alexander; Descazeaud, Aurelien; Drake, Marcus J; Madersbacher, Stephan; Mamoulakis, Charalampos; Oelke, Matthias; Tikkinen, Kari A O; Gravas, Stavros

    2015-06-01

    only in individual patients for specific indications before surgery or when evaluation of the pathophysiology underlying LUTS is warranted. These guidelines provide evidence-based practical guidance for assessment of non-neurogenic male LUTS. An extended version is available online (www.uroweb.org/guidelines). This article presents a short version of European Association of Urology guidelines for non-neurogenic male lower urinary tract symptoms (LUTS). The recommended tests should be able to distinguish between uncomplicated male LUTS and possible differential diagnoses and to evaluate baseline parameters for treatment. The guidelines also define the clinical profile of patients to provide the best evidence-based care. An algorithm was developed to guide physicians in using appropriate diagnostic tests. Copyright © 2014 European Association of Urology. Published by Elsevier B.V. All rights reserved.

  14. The Photometric Investigation of V921 Her Using the Lunar-Based Ultraviolet Telescope of Chang’e-3 Mission

    Directory of Open Access Journals (Sweden)

    Xiao Zhou

    2016-01-01

    Full Text Available The light curve of V921 Her in ultraviolet band observed by the Lunar-based Ultraviolet Telescope (LUT is analyzed by the Wilson-Devinney code. Our solutions conclude that V921 Her is an early type marginal contact binary system with an additional close-in component. The binary system is under poor thermal contact with a temperature difference of nearly 700 K between the two components. The close-in component contributes about 19% of the total luminosity in the triple system. Combining the radial velocity study together with our photometric solutions, the mass of the primary star and secondary one is calculated to be M1=1.784  (±0.055M⊙, M2=0.403  (±0.012M⊙. The evolutionary scenario of V921 Her is discussed. All times of light minimum of V921 Her available in the bibliography are taken into account and the O-C curve is analyzed for the first time. The most probable fitting results are discussed in the paper, which also confirm the existence of a third component (P3=10.2 year around the binary system. The period of V921 Her is also undergoing a continuously rapid increase at a rate of dP/dt=+2.79×10-7  day·year-1, which may be due to mass transfer from the less massive component to the more massive one.

  15. Aerosols correction of the OMI tropospheric NO2 retrievals over cloud-free scenes: Different methodologies based on the O2-O2 477 nm band

    Science.gov (United States)

    Chimot, Julien; Vlemmix, Tim; Veefkind, Pepijn; Levelt, Pieternel

    2016-04-01

    Numerous studies have drawn attention to the complexities related to the retrievals of tropospheric NO2 columns derived from satellite UltraViolet-Visible (UV-Vis) measurements in the presence of aerosols. Correction for aerosol effects will remain a challenge for the next generation of air quality satellite instruments such as TROPOMI on Sentinel-5 Precursor, Sentinel-4 and Sentinel-5. The Ozone Monitoring Instrument (OMI) instrument has provided daily global measurements of tropospheric NO2 for more than a decade. However, aerosols are not explicitly taken into account in the current operational OMI tropospheric NO2 retrieval chain (DOMINO v2 [Boersma et al., 2011]). Our study analyses 2 approaches for an operational aerosol correction, based on the use of the O2-O2 477 nm band. The 1st approach is the cloud-model based aerosol correction, also named "implicit aerosol correction", and already used in the operational chain. The OMI O2-O2 cloud retrieval algorithm, based on the Differential Optical Absorption Spectroscopy (DOAS) approach, is applied both to cloudy and to cloud-free scenes with aerosols present. Perturbation of the OMI cloud retrievals over scenes dominated by aerosols has been observed in recent studies led by [Castellanos et al., 2015; Lin et al., 2015; Lin et al., 2014]. We investigated the causes of these perturbations by: (1) confronting the OMI tropospheric NO2, clouds and MODIS AQUA aerosol products; (2) characterizing the key drivers of the aerosol net effects, compared to a signal from clouds, in the UV-Vis spectra. This study has focused on large industrialised areas like East-China, over cloud-free scenes. One of the key findings is the limitation due to the coarse sampling of the employed cloud Look-Up Table (LUT) to convert the results of the applied DOAS fit into effective cloud fraction and pressure. This leads to an underestimation of tropospheric NO2 amount in cases of particles located at elevated altitude. A higher sampling of the

  16. Lower Urinary Tract Symptoms: Prevalence, Perceptions, and Healthcare-Seeking Behavior amongst Nigerian Men

    Directory of Open Access Journals (Sweden)

    Rufus Wale Ojewola

    2016-12-01

    Full Text Available Purpose: The aim of this study was to determine the prevalence of lower urinary tract symptoms (LUTS and the factors influencing the healthcare-seeking behavior of men with LUTS. Materials and Methods: A cross-sectional survey was performed of 658 men selected using multi-staged sampling techniques. They were interviewed about LUTS and their healthcare-seeking behavior. The data were analysed using PASW Statistics ver. 18. Associations between specific factors and healthcare-seeking behavior were examined using the chi-square and Fisher exact tests. Results: The overall prevalence of LUTS was 59.1%. Storage symptoms (48.2% were more prevalent than voiding (36.8% or post-micturition (29.9% symptoms. Approximately a quarter (25.5% had a poor quality of life (QoL score. The average duration of symptoms before seeking help was 3.4 years. Almost half (46.8% of the men with LUTS had never sought help. Perceptions of LUTS as an inevitable part of ageing, subjective feelings of wellness, financial constraints, and fear of surgery were the most common reasons for not seeking help. The most common reasons for seeking help were to moderate-severe symptoms, impaired QoL, and fear of cancer. Severe LUTS, impaired QoL, and the concomitant presence of erectile dysfunction, dysuria, or haematuria were clinical factors that positively influenced healthcare-seeking behavior. Conclusions: In this population-based study, we found that the prevalence of LUTS was very high amongst adult males. However, only about half of these men sought medical attention. Their healthcare-seeking behavior was influenced by severity of symptoms, QoL scores, and socio-demographic factors such as educational status.

  17. Effect of sexually transmitted infections, lifetime sexual partner count, and recreational drug use on lower urinary tract symptoms in men who have sex with men.

    Science.gov (United States)

    Breyer, Benjamin N; Vittinghoff, Eric; Van Den Eeden, Stephen K; Erickson, Bradley A; Shindel, Alan W

    2012-01-01

    To investigate the relationship of lower urinary tract symptoms (LUTS) to urinary tract infection, prostatitis, sexually transmitted infection, lifetime sexual partner count, and recreational drug use in a population of men who have sex with men. LUTS in men are a source of considerable morbidity, distress, and medical expense. We conducted a cross-sectional, Internet-based survey of urinary quality-of-life outcomes in men who have sex with men. The main outcome was the International Prostate Symptom Score (IPSS), classified as none/mild (IPSS 0-7), moderate/severe (IPSS 8-35), or severe (IPSS 20-35). The participants were also asked whether they ever sought medical attention for urinary problems. The survey web site was accessed by 2783 men, of whom 2348 (84.3%) completed the questionnaire. The median age was 39 years (range 18-81). Age, depression, human immunodeficiency virus infection, gonorrhea, syphilis, prostatitis, and prescription drug abuse were all associated with LUTS. Men who sought medical attention for LUTS were more likely to report older age, diabetes, depression, gonorrhea, urinary tract infection history, and prostatitis. Specific infectious conditions of the urinary tract and depressive symptoms are independent predictors of LUTS in men who have sex with men. Although LUTS are often multifactorial, a common unifying explanation for our finding could be the effects of local and systemic inflammation on the lower urinary tract. Copyright © 2012 Elsevier Inc. All rights reserved.

  18. Risk Factors for Lower Urinary Tract Dysfunction and Symptoms After Successful Renal Transplantation.

    Science.gov (United States)

    Mitsui, Takahiko; Moriya, Kimihiko; Morita, Ken; Iwami, Daiki; Kitta, Takeya; Kanno, Yukiko; Takeda, Masayuki; Shinohara, Nobuo

    2015-12-24

    We investigated risk factors for lower urinary tract (LUT) dysfunction and LUT symptoms in patients who successfully underwent renal transplantation (RTX). Ninety-five patients (54 males and 41 females) undergoing RTX (median age: 45 years old) at Hokkaido University Hospital were included in this study. Uroflowmetry (UFM), postvoid residual urine volume (PVR), and 24-h bladder diaries were performed. We analyzed risk factors for voiding dysfunction, urinary frequency, polyuria, nocturia, and nocturnal polyuria after RTX using logistic regression analysis. End-stage renal disease arose from diabetes mellitus in 18 patients (19%). Pre-transplant dialysis had been carried out in 74 patients. Voiding dysfunction as assessed by UFM and PVR was observed in 24 patients (27%). Based on the 24-h bladder diaries, we identified frequent micturition in 29 patients (35%), polyuria in 44 (54%), nocturia in 30 (37%), and nocturnal polyuria in 46 (56%). A multivariable logistic regression analysis revealed that diabetes mellitus, which may cause autonomic disorders, was a risk factor for voiding dysfunction and nocturnal polyuria. A risk factor for frequent micturition and nocturia was older age at RTX. Being female was a risk factor for polyuria, which suggested that fluid intake in relation to body weight was higher in females. LUT dysfunction and LUT symptoms were not uncommon in patients who successfully underwent RTX. LUT dysfunction and LUT symptoms need to be considered in patients with risk factors such as diabetes mellitus, older age at RTX, and being female, even after successful RTX.

  19. On stochastic approximation algorithms for classes of PAC learning problems

    Energy Technology Data Exchange (ETDEWEB)

    Rao, N.S.V.; Uppuluri, V.R.R.; Oblow, E.M.

    1994-03-01

    The classical stochastic approximation methods are shown to yield algorithms to solve several formulations of the PAC learning problem defined on the domain [o,1]{sup d}. Under some assumptions on different ability of the probability measure functions, simple algorithms to solve some PAC learning problems are proposed based on networks of non-polynomial units (e.g. artificial neural networks). Conditions on the sizes of these samples required to ensure the error bounds are derived using martingale inequalities.

  20. Faraday waves in Bose-Einstein condensates

    International Nuclear Information System (INIS)

    Nicolin, Alexandru I.; Carretero-Gonzalez, R.; Kevrekidis, P. G.

    2007-01-01

    Motivated by recent experiments on Faraday waves in Bose-Einstein condensates we investigate both analytically and numerically the dynamics of cigar-shaped Bose-condensed gases subject to periodic modulation of the strength of the transverse confinement. We offer a fully analytical explanation of the observed parametric resonance, based on a Mathieu-type analysis of the non-polynomial Schroedinger equation. The theoretical prediction for the pattern periodicity versus the driving frequency is directly compared to the experimental data, yielding good qualitative and quantitative agreement between the two. These results are corroborated by direct numerical simulations of both the one-dimensional non-polynomial Schroedinger equation and of the fully three-dimensional Gross-Pitaevskii equation

  1. Examining lower urinary tract symptom constellations using cluster analysis.

    Science.gov (United States)

    Coyne, Karin S; Matza, Louis S; Kopp, Zoe S; Thompson, Christine; Henry, David; Irwin, Debra E; Artibani, Walter; Herschorn, Sender; Milsom, Ian

    2008-05-01

    To gain a better understanding of how patients experience lower urinary tract symptoms (LUTS) and to determine whether particular symptoms cluster together, as LUTS seldom occur alone. A secondary analysis of a cross-sectional, population-based survey of adults in Sweden, Italy, Germany, UK and Canada was undertaken to examine the presence of LUTS groups. Of the 19,165 telephone surveys, 13,519 respondents reported at least one LUTS and were included in the analysis. All respondents were asked about the presence of 14 LUTS (International Prostate Symptom Score plus seven additional LUTS). K-means cluster analyses, a statistical method for sorting objects into groups so that similar objects are grouped together, was used to identify groups of people based on their symptoms. Men and women were analysed separately. A split-half random sample was selected from the dataset so that exploratory analyses could be conducted in one half and confirmed in the second. On model confirmation, the sample was analysed in its entirety. Included in this analysis were 5014 men (mean age 49.8 years; 95% white) and 8505 women (mean age 50.4 years; 96% white). Among both men and women, six distinct symptom cluster groups were identified and the symptom patterns of each cluster were examined. For both, the largest cluster consisted of respondents with minimal symptoms (i.e. reporting essentially one symptom), 56% of men and 57% of women. The remaining five clusters for men and women were labelled based on their predominant symptoms. For men, the clusters were nocturia of twice or more per night (12%); terminal dribble (11%); urgency (10%); multiple symptoms (9%); and postvoid incontinence (5%). For women, the clusters were nocturia of twice or more per night (12%); terminal dribble (10%); urgency (8%); stress incontinence (8%); and multiple symptoms (5%). The multiple-symptom groups had several and varied LUTS, were older, and had more comorbidities. Clusters of terminal dribble and male

  2. Towards Linking 3D SAR and Lidar Models with a Spatially Explicit Individual Based Forest Model

    Science.gov (United States)

    Osmanoglu, B.; Ranson, J.; Sun, G.; Armstrong, A. H.; Fischer, R.; Huth, A.

    2017-12-01

    In this study, we present a parameterization of the FORMIND individual-based gap model (IBGM)for old growth Atlantic lowland rainforest in La Selva, Costa Rica for the purpose of informing multisensor remote sensing techniques for above ground biomass techniques. The model was successfully parameterized and calibrated for the study site; results show that the simulated forest reproduces the structural complexity of Costa Rican rainforest based on comparisons with CARBONO inventory plot data. Though the simulated stem numbers (378) slightly underestimated the plot data (418), particularly for canopy dominant intermediate shade tolerant trees and shade tolerant understory trees, overall there was a 9.7% difference. Aboveground biomass (kg/ha) showed a 0.1% difference between the simulated forest and inventory plot dataset. The Costa Rica FORMIND simulation was then used to parameterize a spatially explicit (3D) SAR and lidar backscatter models. The simulated forest stands were used to generate a Look Up Table as a tractable means to estimate aboveground forest biomass for these complex forests. Various combinations of lidar and radar variables were evaluated in the LUT inversion. To test the capability of future data for estimation of forest height and biomass, we considered data of 1) L- (or P-) band polarimetric data (backscattering coefficients of HH, HV and VV); 2) L-band dual-pol repeat-pass InSAR data (HH/HV backscattering coefficients and coherences, height of scattering phase center at HH and HV using DEM or surface height from lidar data as reference); 3) P-band polarimetric InSAR data (canopy height from inversion of PolInSAR data or use the coherences and height of scattering phase center at HH, HV and VV); 4) various height indices from waveform lidar data); and 5) surface and canopy top height from photon-counting lidar data. The methods for parameterizing the remote sensing models with the IBGM and developing Look Up Tables will be discussed. Results

  3. Defense Science Board 1988 Summer Study on the Defense Industrial and Technology Base. Volume 2. Subgroup Appendices

    Science.gov (United States)

    1988-12-01

    MATERIAS COr PEFNICAMA C EXPLORATION CHEMICAL INDUSTRY OUT PRARY METALS METAL. PARLAY? ENERGY & NULEAR EAPON & PROPULSON REGULATION LUTS FtICH ELECTRICIY...Materials and Processes Energy and Propulsion Energy and Power Acquisition Process Manufacturing Processes Figure I-1. CRITICAL "CATEGORIES" OF...CINSORA SHIPS UCENSDIG AFIRAFT TO TOP THIRD WRLD ENG14EERED suBsiTTUTION Im CHEICAL A ETAL. ENERGY COSTS lUMTE ENERGY COST DRIVING THRUJST I PRIMARY

  4. "Vaba ja sotsiaalne" kui õiguspõhimõte. [1.-2. osa] / Joachim Ruckert ; tõlkinud Marju Luts-Sootak

    Index Scriptorium Estoniae

    Ruckert, Joachim

    2008-01-01

    Sotsiaalsest õiglusest filosoofilisest aspektist ning "vaba ja sotsiaalse" probleemi lahendamisest. Tõlkeallikas: Würzburger Vorträge zur Rechtsphilosophie, Rechtstheorie und Rechtssoziologie, Heft 34. Baden-Baden, 2006

  5. Kui neid kapitulatsioone ees ei oleks...? : ehk õiguse moderniseerimise takistused Vene impeeriumi Läänemere-provintsides 19. sajandil / Marju Luts

    Index Scriptorium Estoniae

    Luts, Marju, 1966-

    2006-01-01

    Tartu Keiserliku Ülikooli õigusteaduse õppejõudude iseloomustusi 19. sajandi esimesel poolel kehtinud kohaliku õiguse kohta, kodifikatsioonitülist Balti moodi. Õigusteaduse ärkamisajast 1838-1851, kodifikatsioonidest 1854-1864

  6. Znaky populární literatury v románu Gastona Lerouxe Záhada žlutého pokoje

    OpenAIRE

    Langová, Dana

    2013-01-01

    TITLE OF THESIS: The characteristics of the popular literature in the novel The mystery of the yellow room by Gaston Leroux SUPERVISOR: Dr. PhDr. Renáta Listíková, MCF AUTHOR: Dana Langová DEPARTMENT: Department of French Language and Literature ABSTRACT: The aim of this bachelor's thesis "The characteristics of the popular literature in the novel The Mystery of the Yellow Room by Gaston Leroux" is to demonstrate why the popular literature is so popular among a broad audience and how it achie...

  7. Ärikinnisvara on paljudel ettevõtetel endiselt ülehinnatud / Kaur-Kaspar Kulli, Tõnu Luts, Andres Hall, Margus Tinno

    Index Scriptorium Estoniae

    2009-01-01

    Ettevõte, kus ei ole kinnisvarainvesteeringuid 2007. aastaga võrreldes vähemalt 30% madalama hinnaga kajastatud, hoiab tõenäoliselt bilansis ülehinnatud varasid, mistõttu kannatab finantsaruandluse usaldusväärsus

  8. Tartu ülikooli kohus 19. sajandil / Jüri Jegorov ; tõlkinud vene keelest Olja Kivistik, Marju Luts-Sootak

    Index Scriptorium Estoniae

    Jegorov, Jüri, 1922-

    2012-01-01

    Tartu ülikooli kohtuorganite struktuurist ja asjaajamise arengust 19. sajandil. Kohtu kompetentsist, kohtumenetlusest, 1803. ja 1820. aasta põhikirjadest, üliõpilasreeglitest, kohtu määratud karistustest ning tudengite aukohtust

  9. [Initial assessment of male non-neurogenic incontinence: systematic review of the literature by the LUTS committee of the French Urological Association].

    Science.gov (United States)

    Mathieu, R; Benchikh, A; Azzouzi, A R; Campeggi, A; Cornu, J N; Delongchamps, N B; Dumonceau, O; Faix, A; Fourmarier, M; Haillot, O; Lebdai, S; Lukacs, B; Misrai, V; Robert, G; de La Taille, A; Descazeaud, A

    2014-06-01

    To perform an update on the initial evaluation of male urinary incontinence (MUI). A systematic review was conducted using Pubmed/Medline from 1995 to 2013. Definition of MUI and its prevalence is variable according its definition and the population. Tools for its evaluation have been mainly studied in female population or only in patients with UI after radical prostatectomy. Objectives of the initial evaluation are to assess the type of incontinence, to evaluate its severity and the bother associated, and define the choice of treatment. Medical history, clinical assessment, and urine analysis are the first steps of the evaluation. Bladder diary, questionnaires and pad test can be useful to evaluate MUI. Post-void residual volume assessment is necessary if lower urinary tract symptoms are associated. Imaging is not routinely used in MUI. A specialist referral and further investigations such as urethrocystoscopy and urodynamics should be considered in case of invasive treatment, recurrent incontinence and specific situations. Initial assessment of MUI should be sequential with systematic investigations and optional ones. Copyright © 2013 Elsevier Masson SAS. All rights reserved.

  10. The Next-Generation Goddard Convective-Stratiform Heating Algorithm: New Retrievals for Tropical and Extra-tropical Environments

    Science.gov (United States)

    Lang, S. E.; Tao, W. K.; Iguchi, T.

    2017-12-01

    The Goddard Convective-Stratiform Heating (or CSH) algorithm has been used to estimate cloud heating over the global Tropics using TRMM rainfall data and a set of look-up-tables (LUTs) derived from a series of multi-week cloud-resolving model (CRM) simulations using the Goddard Cumulus Ensemble model (GCE). These simulations link satellite observables (i.e., surface rainfall and stratiform fraction) with cloud heating profiles, which are not directly observable. However, with the launch of GPM in 2014, the range over which such algorithms can be applied has been extended from the Tropics into higher latitudes, including cold season and synoptic weather systems. In response, the CSH algorithm and its LUTs have been revised both to improve the retrievals in the Tropics as well as expand retrievals to higher latitudes. For the Tropics, the GCE simulations used to build the LUTs were upgraded using larger 2D model domains (512 vs 256 km) and a new, improved Goddard 4-ice scheme as well as expanded with additional cases (4 land and 6 ocean in total). The new tropical LUTs are also re-built using additional metrics. Besides surface type, conditional rain intensity and stratiform fraction, the new LUTs incorporate echo top heights and low-level (0-2 km) vertical reflectivity gradients. CSH retrievals in the Tropics based on the new LUTs show significant differences from previous iterations using TRMM data or the old LUT metrics. For the Extra-tropics, 6 NU-WRF simulations of synoptic events (3 East Coast and 3 West Coast), including snow, were used to build new extra-tropical CSH LUTs. The LUT metrics for the extra-tropics are based on radar characteristics and freezing level height. The extra-tropical retrievals are evaluated with a self-consistency check approach using the model heating as `truth,' and freezing level height is used to transition CSH retrievals from the Tropics to Extra-tropics. Retrieved zonal average heating structures in the Extra-tropics are

  11. Lower urinary tract symptoms in children and adolescents with Williams-Beuren syndrome.

    Science.gov (United States)

    Sammour, Z M; de Bessa, J; Hisano, M; Bruschini, H; Kim, C A; Srougi, M; Gomes, C M

    2017-04-01

    Williams-Beuren syndrome (WBS) is a genetic condition caused by a microscopic deletion in the chromosome band 7q11.23. Individuals with WBS may present with congenital cardiovascular defects, neurodevelopmental disturbances and structural abnormalities of the urinary tract. Lower urinary tract symptoms (LUTS) seem to be frequent in this population, but studies on this topic are scarce and based on small case series. To systematically evaluate the prevalence of lower urinary tract symptoms (LUTS) and the acquisition of bladder control in a large population with WBS. A cross-sectional study evaluating 87 consecutive patients with WBS; there were 41 girls and 46 boys. Genetic studies confirmed WBS in all patients. Subjects were clinically evaluated with: a history of LUTS obtained from the parents and child, a structured questionnaire of LUTS, a 3-day urinary frequency-volume chart, a quality of life question regarding LUTS, and physical examination. A history regarding the acquisition of bladder control was directly evaluated from the parents. Mean age of patients was 9.0 ± 4.2 years, ranging from 3 to 19 years. Based on the symptoms questionnaire and the frequency-volume chart, 70 patients (80.5%) were symptomatic. The most common symptom was urgency, affecting 61 (70.1%) patients, followed by increased urinary frequency in 60 (68.9%) patients, and urge-incontinence in 53 (60.9%), as shown in Summary Fig. More than half of the children reported nocturnal enuresis, including 61% of the girls and 52% of the boys. Twenty-three patients (25.6%) had a history of urinary tract infections. The mean age for acquisition of dryness during the day was 4.4 ± 1.9 years. Parents of 61 patients (70.1%) acknowledged that LUTS had a significant impact on the quality of life of their children. A high prevalence of LUTS was confirmed with a significant negative impact on quality of life in a large population of children and adolescents with WBS. It was shown for the first time

  12. Asymmetric Variate Generation via a Parameterless Dual Neural Learning Algorithm

    Directory of Open Access Journals (Sweden)

    Simone Fiori

    2008-01-01

    Full Text Available In a previous work (S. Fiori, 2006, we proposed a random number generator based on a tunable non-linear neural system, whose learning rule is designed on the basis of a cardinal equation from statistics and whose implementation is based on look-up tables (LUTs. The aim of the present manuscript is to improve the above-mentioned random number generation method by changing the learning principle, while retaining the efficient LUT-based implementation. The new method proposed here proves easier to implement and relaxes some previous limitations.

  13. Digital Real-Time Multiple Channel Multiple Mode Neutron Flux Estimation on FPGA-based Device

    Directory of Open Access Journals (Sweden)

    Thevenin Mathieu

    2016-01-01

    Full Text Available This paper presents a complete custom full-digital instrumentation device that was designed for real-time neutron flux estimation, especially for nuclear reactor in-core measurement using subminiature Fission Chambers (FCs. Entire fully functional small-footprint design (about 1714 LUTs is implemented on FPGA. It enables real-time acquisition and analysis of multiple channels neutron's flux both in counting mode and Campbelling mode. Experimental results obtained from this brand new device are consistent with simulation results and show good agreement within good uncertainty. This device paves the way for new applications perspectives in real-time nuclear reactor monitoring.

  14. Metabolic Syndrome, Inflammation and Lower Urinary Tract Symptoms – Possible Translational Links

    Science.gov (United States)

    He, Qiqi; Wang, Zhiping; Liu, Guiming; Daneshgari, Firouz; MacLennan, Gregory T.; Gupta, Sanjay

    2015-01-01

    Background Epidemiological data suggest that lower urinary tract symptoms (LUTS) may be associated with metabolic syndrome (MetS). Inflammation has been proposed as a candidate mechanism at the crossroad between these two clinical entities. The aim of this review article is to evaluate the role of MetS-induced inflammation in the pathogenesis and progression of LUTS. Methods A systematic review was conducted using the keywords ‘metabolic syndrome AND lower urinary tract symptoms’ within the title search engines including PubMed, Web of Science, and the Cochrane Library for relevant research work published between 2000 and January 2015. The obtained literature was reviewed by the primary author (QH) and was assessed for eligibility and standard level of evidence. Results Total of 52 articles met the eligibility criteria. Based on database search during the past 15 years and our systematic review of prospective and retrospective cohorts, case-control trials, observational studies and animal data identified a possible link between MetS-induced inflammation and LUTS including benign prostatic hyperplasia, bladder outlet obstruction, overactive bladder, urinary incontinence and others possible urinary tract abnormalities. Conclusions There is convincing evidence to suggest that MetS and inflammation could be important contributors to LUTS in men, particularly in the development of benign prostatic hyperplasia. However, the role of MetS-induced inflammation remains unclear in overactive bladder, urinary incontinence and etiology of LUTS progression. PMID:26391088

  15. Are urge incontinence and aging risk factors of erectile dysfunction in patients with male lower urinary tract symptoms?

    Science.gov (United States)

    Amano, Toshiyasu; Earle, Carolyn; Imao, Tetsuya; Takemae, Katsuro

    2016-01-01

    Several studies have indicated that erectile dysfunction (ED) patients also suffer from lower urinary tract symptoms (LUTS). We investigated a group of men with LUTS and assessed their sexual function with the aim of being able to predict ED risk factors and introduce ED treatments earlier for this patient group. International Prostate Symptom Score (IPSS), Overactive Bladder Symptoms Score (OABSS) and Sexual Health Inventory for Men (SHIM) score were obtained from 236 men with LUTS at their first out-patients visit. Clinical parameters such as body mass index, prostate volume, residual urine volume and prostate specific antigen were also evaluated. The relationship between the SHIM score and other clinical data was analyzed. According to the SHIM score, ED in men with LUTS was severe 15%, moderate 19%, moderate to mild 28%, mild 17%, normal 7% and data was incomplete in 14%. Based on the results of a multivariate analysis, aging (p urinary incontinence was a risk factor for severe and moderate ED (p = 0.005). Aging and OAB (notably urinary urge incontinence) are risk factors for severe and moderate ED in men with LUTS.

  16. Lower urinary-tract symptoms and testosterone in elderly men

    Science.gov (United States)

    El-Sakka, Ahmed I.; Saad, Farid; Gooren, Louis J. G.

    2008-01-01

    Objectives The objective was to examine the effects of testosterone administration on symptom scores of lower urinary tract symptoms (LUTS). Methods The literatures on the epidemiological association between the metabolic syndrome, erectile failure and (LUTS) were reviewed. Results In men with the metabolic syndrome and erectile failure, often lower-than-normal testosterone levels are found. This is less clear for men with LUTS, but the relationship between testosterone and LUTS might be indirect and based on the association of the metabolic syndrome with an overactivity of autonomic nervous system. This overactivity may play a key role in increasing the severity of LUTS above an intrinsic basal intensity that is determined by the genitourinary factors in aging men. Androgen receptors are present in the epithelium of the urethra and the bladder. Testosterone may play a role in the reflex activity of the autonomic nervous system in the pelvis, or may interact with postsynaptic non-genomic receptors suppressing detrusor activity. Human neurons in the wall of the bladder contain nitric oxide synthase. Similar to the penis, testosterone has an impact on nitric oxide synthase. Conclusions Some studies investigating the effects of normalizing testosterone levels in elderly men have found a positive effect on variables of the metabolic syndrome and, simultaneously, on scores of the International Prostate Symptoms Score (IPSS) which is worthy of further investigation in randomized, controlled and sufficiently powered clinical trials. PMID:18594831

  17. Fast radiative transfer using monochromatic look-up tables

    International Nuclear Information System (INIS)

    Anthony Vincent, R.; Dudhia, Anu

    2017-01-01

    Line-by-line (LBL) methods of numerically solving the equations of radiative transfer can be inhibitingly slow. Operational trace gas retrieval schemes generally require much faster output than current LBL radiative transfer models can achieve. One option to speed up computation is to precalculate absorption cross sections for each absorbing gas on a fixed grid and interpolate. This work presents a general method for creating, compressing, and validating a set of individual look-up tables (LUTs) for the 11 most abundant trace gases to use the Reference Forward Model (RFM) to simulate radiances observed by the Infrared Atmospheric Sounding Interferometer (IASI) at a more operational pace. These LUTs allow the RFM to generate radiances more than 20 times faster than LBL mode and were rigorously validated for 80 different atmospheric scenarios chosen to represent variability indicative of Earth's atmosphere. More than 99% of all IASI simulated spectral channels had LUT interpolation errors of brightness temperature less than 0.02 K, several factors below the IASI noise level. Including a reduced spectral grid for radiative transfer speed up the computation by another factor of six at the expense of approximately doubling interpolation errors, still factors below IASI noise. Furthermore, a simple spectral compression scheme based upon linear interpolation is presented, which reduced the total LUT file size from 120 Gbytes to 5.6 Gbytes; a compression to just 4.4% of the original. These LUTs are openly available for use by the scientific community, whether using the RFM or to be incorporated into any forward model. - Highlights: • Method to create, compress, and validate absorption coefficient LUTs is proposed. • Allows for simulation of thermal IR radiances 20–100 times faster than line-by-line. • LUTs were created for top 11 atmospheric trace gases for nadir-viewing scenarios. • LUT interpolation errors for IASI simulations found to be factors below

  18. What is the most bothersome lower urinary tract symptom? Individual- and population-level perspectives for both men and women.

    Science.gov (United States)

    Agarwal, Arnav; Eryuzlu, Leyla N; Cartwright, Rufus; Thorlund, Kristian; Tammela, Teuvo L J; Guyatt, Gordon H; Auvinen, Anssi; Tikkinen, Kari A O

    2014-06-01

    No study has compared the bothersomeness of all lower urinary tract symptoms (LUTS) using a population-based sample of adults. Despite this lack of evidence, investigators have often cited their LUTS of interest as the "most bothersome" or "one of the most bothersome." To compare the population- and individual-level burden of LUTS in men and women. In this population-based cross-sectional study, questionnaires were mailed to 6000 individuals (18-79 yr of age) randomly identified from the Finnish Population Register. The validated Danish Prostatic Symptom Score questionnaire was used for assessment of bother of 12 different LUTS. The age-standardized prevalence of at least moderate bother was calculated for each symptom (population-level burden). Among symptomatic individuals, the proportion of affected individuals with at least moderate bother was calculated for each symptom (individual-level bother). A total of 3727 individuals (62.4%) participated (53.7% female). The LUTS with the greatest population-level burden were urgency (7.9% with at least moderate bother), stress urinary incontinence (SUI) (6.5%), nocturia (6.0%), postmicturition dribble (5.8%), and urgency urinary incontinence (UUI) (5.0%). Burden from incontinence symptoms was higher in women than men, and the opposite was true for voiding and postmicturition symptoms. At the individual level, UUI was the most bothersome for both genders. Although the response proportion was high, approximately a third did not participate. Both men and women with UUI report moderate or major bother more frequently than individuals with other LUTS. At the population level, the most prevalent bothersome symptoms are urgency, SUI, and nocturia. Urinary urgency was the most common troubling symptom in a large population-based study; however, for individuals, urgency incontinence was the most likely to be rated as bothersome. Copyright © 2014 European Association of Urology. All rights reserved.

  19. What Is the Most Bothersome Lower Urinary Tract Symptom? Individual- and Population-level Perspectives for Both Men and Women

    Science.gov (United States)

    Agarwal, Arnav; Eryuzlu, Leyla N.; Cartwright, Rufus; Thorlund, Kristian; Tammela, Teuvo L.J.; Guyatt, Gordon H.; Auvinen, Anssi; Tikkinen, Kari A.O.

    2014-01-01

    Background No study has compared the bothersomeness of all lower urinary tract symptoms (LUTS) using a population-based sample of adults. Despite this lack of evidence, investigators have often cited their LUTS of interest as the “most bothersome” or “one of the most bothersome.” Objective To compare the population- and individual-level burden of LUTS in men and women. Design, setting, and participants In this population-based cross-sectional study, questionnaires were mailed to 6000 individuals (18–79 yr of age) randomly identified from the Finnish Population Register. Outcome measurements and statistical analysis The validated Danish Prostatic Symptom Score questionnaire was used for assessment of bother of 12 different LUTS. The age-standardized prevalence of at least moderate bother was calculated for each symptom (population-level burden). Among symptomatic individuals, the proportion of affected individuals with at least moderate bother was calculated for each symptom (individual-level bother). Results and limitations A total of 3727 individuals (62.4%) participated (53.7% female). The LUTS with the greatest population-level burden were urgency (7.9% with at least moderate bother), stress urinary incontinence (SUI) (6.5%), nocturia (6.0%), postmicturition dribble (5.8%), and urgency urinary incontinence (UUI) (5.0%). Burden from incontinence symptoms was higher in women than men, and the opposite was true for voiding and postmicturition symptoms. At the individual level, UUI was the most bothersome for both genders. Although the response proportion was high, approximately a third did not participate. Conclusions Both men and women with UUI report moderate or major bother more frequently than individuals with other LUTS. At the population level, the most prevalent bothersome symptoms are urgency, SUI, and nocturia. Patient summary Urinary urgency was the most common troubling symptom in a large population-based study; however, for individuals

  20. Touch BASE

    CERN Multimedia

    Antonella Del Rosso

    2015-01-01

    In a recent Nature article (see here), the BASE collaboration reported the most precise comparison of the charge-to-mass ratio of the proton to its antimatter equivalent, the antiproton. This result is just the beginning and many more challenges lie ahead.   CERN's AD Hall, where the BASE experiment is set-up. The Baryon Antibaryon Symmetry Experiment (BASE) was approved in June 2013 and was ready to take data in August 2014. During these 14 months, the BASE collaboration worked hard to set up its four cryogenic Penning traps, which are the heart of the whole experiment. As their name indicates, these magnetic devices are used to trap antiparticles – antiprotons coming from the Antiproton Decelerator – and particles of matter – negative hydrogen ions produced in the system by interaction with a degrader that slows the antiprotons down, allowing scientists to perform their measurements. “We had very little time to set up the wh...

  1. Comparing the effects of meal replacements with an isocaloric reduced-fat diet on nutrient intake and lower urinary tract symptoms in obese men.

    Science.gov (United States)

    Khoo, J; Ling, P-S; Chen, R Y-T; Ng, K-K; Tay, T-L; Tan, E; Cho, L-W; Cheong, M

    2014-06-01

    Lower urinary tract symptoms (LUTS) in men are associated with obesity, particularly central obesity as measured by waist circumference (WC), and may improve with weight loss. We aimed to compare effects of a meal-replacement based diet with isocaloric reduced-fat plan on LUTS and nutrient intake in obese Asian men. Obese Asian [mean (range) body mass index of 32.9 (30.5-42.3) kg m(-2) ] men [mean (range) age 40.2 (30-61) years] were randomised to a reduced-fat (meal-replacement-based plan [meal replacement (MR) group; n = 23], to reduce daily intake by 2000 kJ for 12 weeks. CD and MR groups had statistically significant and similar reductions in weight (-2.6 ± 1.9 kg versus -4.2 ± 3.8 kg), overall LUTS severity measured with International Prostate Symptom Scale (IPSS) scores (-1.71 ± 1.93 points versus -2.42 ± 2.12 points) and insulin resistance [homeostasis model assessment (HOMA) calculated from plasma glucose and insulin]. The MR group had significantly greater decreases in WC (-4.8 ± 3.3 cm versus -2.5 ± 2.3 cm), fat mass (-2.47 ± 3.63 kg versus -1.59 ± 2.32 kg), fat intake, plasma C-reactive protein, and in storage LUTS score (-1.59 ± 1.33 points versus -1.00 ± 0.87 points), which was associated with a decreased fat intake (r = 0.48, P = 0.03). A decrease in overall IPSS score was associated with reductions in weight, WC and HOMA. Weight loss as a result of CD or MR had similar efficacy in relieving LUTS. MR produced greater reductions in fat intake, adiposity and storage LUTS. © 2013 The British Dietetic Association Ltd.

  2. Epidemiology and impact of urinary incontinence, overactive bladder, and other lower urinary tract symptoms: results of the EPIC survey in Russia, Czech Republic, and Turkey.

    Science.gov (United States)

    Kogan, Mikhail Iosifovich; Zachoval, Roman; Ozyurt, Ceyhun; Schäfer, Thomas; Christensen, Nicola

    2014-10-01

    To estimate the prevalence of urinary incontinence (UI), overactive bladder (OAB), and other lower urinary tract symptoms (LUTS) in the Czech Republic, Russia, and Turkey. Stage one of this population-based survey consisted of computer-assisted telephone interviews to obtain prevalence estimates of storage, voiding, and post-micturition LUTS. Stage two face-to-face interviews evaluated subjects with mixed urinary incontinence (MUI), stress urinary incontinence (SUI) or OAB (case group) and a control group (subjects with other incontinence or LUTS complaints, or no symptoms). Prevalence of LUTS categories were determined for each country based on International Continence Society (ICS) criteria. A total of 3130 individuals agreed to participate in the survey, which found high rates of LUTS (men 80%; women 84%) and OAB (men 18%; women 28%). Duration of urinary symptoms was relatively brief (approximately 60% ≤ 3 years) and was associated with relatively modest effects on quality of life and work performance in the majority of individuals. Forty percent had consulted with a healthcare provider about their urinary symptoms, of whom 37% had consulted with a physician and 34% with an urologist, and 12% had been treated with a prescription medication. Drug therapy, while uncommon, was associated with a high degree of self-reported improvement (96%). Because of between-country population differences, aggregate results may not always be representative of results for each of the three countries individually. Study limitations include reliance on patient self-report, and potential bias introduced by patients who declined to participate in the survey. The results of this epidemiologic survey found high rates of LUTS and OAB, but low levels of medical consultation and very low use of medication treatment, despite high levels of improvement when medications were used.

  3. Investigation of phase error correction for digital sinusoidal phase-shifting fringe projection profilometry

    Science.gov (United States)

    Ma, S.; Quan, C.; Zhu, R.; Tay, C. J.

    2012-08-01

    Digital sinusoidal phase-shifting fringe projection profilometry (DSPFPP) is a powerful tool to reconstruct three-dimensional (3D) surface of diffuse objects. However, a highly accurate profile is often hindered by nonlinear response, color crosstalk and imbalance of a pair of digital projector and CCD/CMOS camera. In this paper, several phase error correction methods, such as Look-Up-Table (LUT) compensation, intensity correction, gamma correction, LUT-based hybrid method and blind phase error suppression for gray and color-encoded DSPFPP are described. Experimental results are also demonstrated to evaluate the effectiveness of each method.

  4. Web based foundry knowledge base

    Directory of Open Access Journals (Sweden)

    A. Stawowy

    2009-01-01

    Full Text Available The main assumptions and functions of proposed Foundry Knowledge Base (FKB are presented in this paper. FKB is a framework forinformation exchange of casting products and manufacturing methods. We use CMS (Content Management System to develope andmaintain our web-based system. The CastML – XML dialect developed by authors for description of casting products and processes – isused as a tool for information interchange between ours and outside systems, while SQL is used to store and edit knowledge rules and alsoto solve the basic selection problems in the rule-based module. Besides the standard functions (companies data, news, events, forums and media kit, our website contains a number of nonstandard functions; the intelligent search module based on expert system is the main advantage of our solution. FKB is to be a social portal which content will be developed by foundry community.

  5. Lower urinary tract symptoms in children with anorectal malformations with rectoperineal fistulas.

    Science.gov (United States)

    Stenström, Pernilla; Sandelin, Hanna; Emblem, Ragnhild; Björnland, Kristin

    2016-08-01

    The aim was to describe the frequency of lower urinary tract symptoms (LUTS) in children with anorectal malformations with rectoperineal fistulas (ARM-P), as compared with healthy controls based on gender. LUTS were defined using the 2014 definitions of the International Children's Continence Society. Data were collected at 2 tertiary pediatric surgery centers in 2 countries from all children aged 4-12years who had undergone an operation for ARM-P. A total of 24 girls and 33 boys, with a median age of 8 (4-12)years, were eligible and compared with 165 controls. Of the patient group, 4 (17%) girls had 8 urinary tract anomalies (UTA), and 8 (24%) boys had 13 UTA. There were no gender differences in LUTS among the patients. The frequency of urinary tract infections was higher among the patients (5/24 girls and 7/55 boys) than the controls (1/55 and 4/110) (p=0.009). More patients (5/24 girls and 5/33 boys) than controls (1/55 and 2/110) used daily urinary medications (p=0.009 and p=0.007, respectively). Patients with UTA reported urinary infections more frequently (3/4 girls and 4/8 boys) than those without UTA (2/20 girls and 0/25 boys) (p=0.018 and p=0.002, respectively). Children with ARM-P had more LUTS than controls, and patients with concomitant UTA had more LUTS than patients without UTA. Therefore, children with ARM-P are suggested to have routine follow-up for both UTA and LUTS. Copyright © 2016 Elsevier Inc. All rights reserved.

  6. New gridded database of clear-sky solar radiation derived from ground-based observations over Europe

    Science.gov (United States)

    Bartok, Blanka; Wild, Martin; Sanchez-Lorenzo, Arturo; Hakuba, Maria Z.

    2017-04-01

    surface meteorological elements developed at the Hungarian Meteorological Service (Szentimrey 2007). In this way new gridded database of clear-sky solar radiation is created suitable for further investigations regarding the role of aerosols in the energy budget, and also for validations of climate model outputs. References 1. Long CN, Ackerman TP. 2000. Identification of clear skies from broadband pyranometer measurements and calculation of downwelling shortwave cloud effects, J. Geophys. Res., 105(D12), 15609-15626, doi:10.1029/2000JD900077. 2. Mueller R, Matsoukas C, Gratzki A, Behr H, Hollmann R. 2009. The CM-SAF operational scheme for the satellite based retrieval of solar surface irradiance - a LUT based eigenvector hybrid approach, Remote Sensing of Environment, 113 (5), 1012-1024, doi:10.1016/j.rse.2009. 01.012 3. Szentimrey T. 2014. Multiple Analysis of Series for Homogenization (MASHv3.03), Hungarian Meteorological Service, https://www.met.hu/en/omsz/rendezvenyek/homogenization_and_interpolation/software/ 4. Szentimrey T. Bihari Z. 2014: Meteorological Interpolation based on Surface Homogenized Data Basis (MISHv1.03) https://www.met.hu/en/omsz/rendezvenyek/homogenization_and_interpolation/software/

  7. Multi-Algorithm Indices and Look-Up Table for Chlorophyll-a Retrieval in Highly Turbid Water Bodies Using Multispectral Data

    Directory of Open Access Journals (Sweden)

    Salem Ibrahim Salem

    2017-06-01

    Full Text Available Many approaches have been proposed for monitoring the eutrophication of Case 2 waters using remote sensing data. Semi-analytical algorithms and spectrum matching are two major approaches for chlorophyll-a (Chla retrieval. Semi-analytical algorithms provide indices correlated with phytoplankton characteristics, (e.g., maximum and minimum absorption peaks. Algorithms’ indices are correlated with measured Chla through the regression process. The main drawback of the semi-analytical algorithms is that the derived relation is location and data limited. Spectrum matching and the look-up table approach rely on matching the measured reflectance with a large library of simulated references corresponding to wide ranges of water properties. The spectral matching approach taking hyperspectral measured reflectance as an input, leading to difficulties in incorporating data from multispectral satellites. Consequently, multi-algorithm indices and the look-up table (MAIN-LUT technique is proposed to combine the merits of semi-analytical algorithms and look-up table, which can be applied to multispectral data. Eight combinations of four algorithms (i.e., 2-band, 3-band, maximum chlorophyll index, and normalized difference chlorophyll index are investigated for the MAIN-LUT technique. In situ measurements and Medium Resolution Imaging Spectrometer (MERIS sensor data are used to validate MAIN-LUT. In general, the MAIN-LUT provide a comparable retrieval accuracy with locally tuned algorithms. The most accurate of the locally tuned algorithms varied among datasets, revealing the limitation of these algorithms to be applied universally. In contrast, the MAIN-LUT provided relatively high retrieval accuracy for Tokyo Bay (R2 = 0.692, root mean square error (RMSE = 21.4 mg m−3, Lake Kasumigaura (R2 = 0.866, RMSE = 11.3 mg m−3, and MERIS data over Lake Kasumigaura (R2 = 0.57, RMSE = 36.5 mg m−3. The simulated reflectance library of MAIN-LUT was generated based on

  8. Fragmentation based

    Directory of Open Access Journals (Sweden)

    Shashank Srivastava

    2014-01-01

    Gaining the understanding of mobile agent architecture and the security concerns, in this paper, we proposed a security protocol which addresses security with mitigated computational cost. The protocol is a combination of self decryption, co-operation and obfuscation technique. To circumvent the risk of malicious code execution in attacking environment, we have proposed fragmentation based encryption technique. Our encryption technique suits the general mobile agent size and provides hard and thorny obfuscation increasing attacker’s challenge on the same plane providing better performance with respect to computational cost as compared to existing AES encryption.

  9. Sadhana | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Keywords. Memristor; FPGA; ASIC; CMOL; FPNI; implication. Abstract. Reconfigurable architectures (FPGA) with embedded memory elements face problems in retaining data for longer duration due to leakage current as it becomes dominant in nanometer devices in conventional technologies. Also, LUT-based designs ...

  10. Prevalence of clinical benign prostatic hyperplasia amongst ...

    African Journals Online (AJOL)

    Subjects and methods: This is a community-based cross-sectional survey conducted amongst 615 men. Subjects selected using multi-staged sampling technique were interviewed for presence of lower urinary tract symptoms (LUTS) in their houses. Severity of symptoms was assessed using International Prostate Symptom ...

  11. Foundation: Transforming data bases into knowledge bases

    Science.gov (United States)

    Purves, R. B.; Carnes, James R.; Cutts, Dannie E.

    1987-01-01

    One approach to transforming information stored in relational data bases into knowledge based representations and back again is described. This system, called Foundation, allows knowledge bases to take advantage of vast amounts of pre-existing data. A benefit of this approach is inspection, and even population, of data bases through an intelligent knowledge-based front-end.

  12. A thermodynamic and kinetic study of the heterolytic activation of hydrogen by frustrated borane-amine Lewis pairs.

    Science.gov (United States)

    Karkamkar, Abhi; Parab, Kshitij; Camaioni, Donald M; Neiner, Doinita; Cho, Herman; Nielsen, Thomas K; Autrey, Tom

    2013-01-21

    Calorimetry is used to measure the reaction enthalpies of hydrogen (H(2)) activation by 2,6-lutidine (Lut), 2,2,6,6-tetramethylpiperidine (TMP), N-methyl-2,2,6,6-tetramethylpiperidine (MeTMP), and tri-tert-butylphosphine (TBP) with tris(pentafluorophenyl)borane (BCF). At 6.6 bar H(2) the conversion of the Lewis acid Lewis base pair to the corresponding ionic pair in bromobenzene at 294 K was quantitative in under 60 min. Integration of the heat release from the reaction of the Frustrated Lewis Pair (FLP) with H(2) as a function of time yields a relative rate of hydrogenation in addition to the enthalpy of hydrogenation. The half-lives of hydrogenation range from 230 s with TMP, ΔH(H2) = -31.5(0.2) kcal mol(-1), to 1400 s with Lut, ΔH(H2) = -23.4(0.4) kcal mol(-1). The (11)B nuclear magnetic resonance (NMR) spectrum of B(C(6)F(5))(3) in bromobenzene exhibits three distinct traits depending on the sterics of the Lewis base; (1) in the presence of pyridine, only the dative bond adduct pyridine-B(C(6)F(5))(3) is observed; (2) in the presence of TMP and MeTMP, only the free B(C(6)F(5))(3) is observed; and (3) in the presence of Lut, both the free B(C(6)F(5))(3) and the Lut-B(C(6)F(5))(3) adduct appear in equilibrium. A measure of the change in K(eq) of Lut + B(C(6)F(5))(3) ⇔ Lut-B(C(6)F(5))(3) as a function of temperature provides thermodynamic properties of the Lewis acid Lewis base adduct, ΔH = -17.9(1.0) kcal mol(-1) and a ΔS = -49.2(2.5) cal mol(-1) K, suggesting the Lut-B(C(6)F(5))(3) adduct is more stable in bromobenzene than in toluene.

  13. An update on the pharmacotherapy for lower urinary tract dysfunction.

    Science.gov (United States)

    Abraham, Nitya; Goldman, Howard B

    2015-01-01

    The lower urinary tract (LUT) stores and evacuates urine. It is controlled by autonomic, somatic and sensory innervation. Pharmacotherapy has been developed to optimize neural control of the LUT in pathologic states. The bladder can be overactive or underactive. For overactive bladder, medications targeting various receptors include i) antimuscarinics, ii) mixed-action drugs, iii) β-adrenergic receptor agonists and iv) other medications. There is no effective pharmacotherapy for underactive bladder, although medications have been used with limited success, including i) muscarinic receptor agonists, ii) anticholinesterase inhibitors and iii) α-adrenergic receptor antagonists. At the level of the outlet, there can be decreased resistance resulting in stress urinary incontinence (SUI) or increased resistance resulting in bladder outflow obstruction (BOO). The classes of medications for SUI include i) α-adrenergic receptor agonists, ii) β-adrenergic receptor agonists and iii) antidepressants. Medications used to treat BOO include i) α-adrenergic receptor antagonists, ii) 5-α reductase inhibitors, iii) benzodiazepines, iv) baclofen and v) PDE inhibitors. Pharmacotherapy for the LUT must be individualized based on degree of bother, medication side-effect profile, concomitant comorbidities, current medication regimen, and insurance coverage. This review describes current medical therapies for the LUT.

  14. 30-m Land Surface Albedo by Integrating Landsat directional reflectance and MODIS anisotropic information

    Science.gov (United States)

    Shuai, Y.; Masek, J. G.; Gao, F.; Schaaf, C.; Williams, C. A.; Wang, Z.

    2012-12-01

    Land surface albedo as a key physical variable determining the solar energy absorbed by the land surface, and can affect climate through ecosystem feedback processes. Some studies have highlighted that positive radiative forcing (warming) induced by increased forest cover and decreased albedo in temperate and boreal forest regions could offset the negative forcing expected from carbon sequestration (Betts 2000). However, these studies have not used data at the spatial resolution of human land dynamics (e.g. 30m Landsat resolution). Therefore, there is a need for improved estimates of land surface albedo at high resolution to fully understand the role of land cover change in climate forcing and carbon cycle. Following our initial "concurrent" approach applied to Landsat data acquired during the post-2000 MODIS era (Shuai et al.2011), we have developed a "pre-MODIS era" approach to generate 30-meter albedos using Landsat surface directional reflectance (1970s-2000) and Look-Up-Tables (LUT) of anisotropy information extracted from MODIS BRDF data. We use a NLCD (National Land Cover Dataset)-class-based LUT for non-disturbed land cover. Disturbed forest patches are identified from the Monitoring Trends in Burn Severity (MTBS) and North American Forest Dynamics (NAFD) datasets. For each category, high quality MODIS BRDF parameters (MCD43A1 product) are retrieved and used to populate the LUT. Each entry in the LUT reflects a unique combination of land cover type, disturbance age and type, season/month, and sensor bands. The initial BRDF LUT generated for the Pacific Northwest of the United States exhibits various BRDF evolution trajectories for disturbed classes, including different recovery trajectories for fire and non-fire disturbance. The albedo-to-nadir-ratio method (Shuai et al., 2011) is applied to the BRDF LUT to calculate spectral albedos, followed by a narrow-to-broadband conversion (Liang 2000) to generate broad-band shortwave albedo. Our preliminary

  15. Lower urinary tract symptoms associated with neurological conditions: Observations on a clinical sample of outpatients neurorehabilitation service

    Directory of Open Access Journals (Sweden)

    Fabrizio Torelli

    2015-07-01

    Full Text Available Objectives: The overall aims of this study were to investigate the lower urinary tract symptoms (LUTS associated with neurological conditions and their prevalence and impact on a clinical sample of outpatients of a neurorehabilitation service. Materials and methods: We reviewed the files of 132 patients treated in our neurorehabilitation service from December 2012 to December 2013. Patients were divided into several subgroups based on the neurological diagnosis: Multiple Sclerosis (MS, other demyelinating diseases, Peripheral Neuropathy, neurovascular disorders (ND, neoplastic disease, traumatic brain injury (TBI, Parkinson and Parkinsonism, spinal cord injuries (SCI. Urinary status was based on medical evaluations of history of LUTS, type, degree, onset and duration of symptoms. We tried to analyze prevalence, kind of disorder, timing of presentation (if before or after the neurological onset and eventual persistence of urological disorders (in the main group and in all subgroups. Results: At the time of admission to our rehabilitation service, LUTS were observed in 14 out of 132 cases (11%. A high proportion of these outpatients (64.2% presented bothersome urinary symptoms such as incontinence, frequency and urgency (storage LUTS. The most frequent symptom was urinary urge incontinence (42.8%. This symptom was found to be prevalent in the multiple sclerosis and neurovascular disorders. In 93% the urinary symptoms arose as a result of neurologic conditions and 78.5% did not present a complete recovery of urological symptoms in spite of improved selfreported functional activity limitations. None of these patients performed urological rehabilitation. Conclusions: Neurological disorders are a significant issue in rehabilitation services and it can lead to lower tract dysfunction, which causes LUTS. Storage symptoms are more common, especially urge incontinence. Current literature reports that a further optimization of the rehabilitation potential

  16. A study of bladder dysfunction in women with type 2 diabetes mellitus

    Directory of Open Access Journals (Sweden)

    Ritu Karoli

    2014-01-01

    Full Text Available Introduction: Diabetes mellitus has been associated with an earlier onset and increased severity of urologic diseases that often result in debilitating urologic complications. Diabetic bladder dysfunction refers to a group of bladder symptoms occurring in patients with diabetes mellitus ranging from bladder over activity to impaired bladder contractility. Aim: Bladder dysfunction is an under evaluated issue in women with diabetes. Aim of our study was to investigate prevalence of bladder dysfunction and its relation with other chronic complications of diabetes in women with type 2 diabetes. Materials and Methods: In a hospital-based cross sectional study, a cohort of women with type 2 diabetes mellitus who had lower urinary tract symptoms (LUTS were enrolled. We used the American Urological Association Symptom Index (AUA-SI to assess the severity of LUTS and the Indevus Urgency Severity Scale (IUSS to assess presence of overactive bladder (OAB. Age-BMI- matched controls that did not have diabetes but had lower urinary tract symptoms were also studied and compared with women with type 2 diabetes. Urodynamic evaluation was done in willing patients. Results: LUTS attributable to bladder dysfunction were reported in 67% of women with type 2 diabetes after exclusion of other causes. Out of them, 36% had moderate to severe LUTS (total AUA-SI score >7. Prevalence of OAB was 53%. Urodynamic evaluation revealed presence of stress urinary incontinence in 48% patients and changes of detrusor over activity and detrusor under activity in 23% and 11% patients, respectively. Among the chronic complications of diabetes, peripheral neuropathy, nephropathy, and presence of metabolic syndrome were significantly associated with moderate to severe LUTS and OAB. Conclusion: Bladder dysfunction is a highly prevalent complication in women with diabetes. Chronic complications of diabetes especially neuropathy, nephropathy, and presence of metabolic syndrome are

  17. Rate and associated factors of solifenacin add-on after tamsulosin monotherapy in men with voiding and storage lower urinary tract symptoms.

    Science.gov (United States)

    Lee, H N; Lee, K-S; Kim, J C; Chung, B H; Kim, C-S; Lee, J G; Kim, D K; Park, C H; Park, J K; Hong, S J

    2015-04-01

    To explore the rate of add-on therapy with solifenacin in men with voiding and storage lower urinary tract symptoms (LUTS) after tamsulosin monotherapy and to explore predictive factors for starting solifenacin add-on therapy. Men aged ≥ 45 years with IPSS ≥ 12 and symptoms of OAB (OAB-V8 ≥ 8, micturition ≥ 8/24 h, urgency ≥ 2/24 h) were enrolled to receive tamsulosin 0.2 mg once daily. After 4 weeks, men with residual symptoms of OAB and reported 'dissatisfied' or 'a little satisfied' were received solifenacin 5 mg in combination with tamsulosin monotherapy. Subjects completed an IPSS, a Quality of life (QoL) index, OAB V8, and an International Consultation of Incontinence Questionnaire (ICIQ)-Male LUTS, and patient perception of bladder condition (PPBC) at baseline and week 4. Of a total of 305 patients, 254 patients completed 4 weeks of tamsulosin treatment. For 176 patients, solifenacin was added (69.3%). Significant predictive factors of solifenacin add-on therapy included long LUTS duration, high IPSS, number of micturitions per 24 h, more urgency episodes, high urgency severity score in a voiding diary and high OAB V8 score. Based on multivariable analysis, potential predictive factors of solifenacin add-on therapy included long LUTS duration (OR = 1.008, 95% CI: 1.001-1.014), high serum PSA (OR = 1.543, 95% CI: 1.136-2.095) and small prostate size (OR = 0.970, 95% CI: 0.947-0.994) (p tamsulosin monotherapy. Two thirds of men with voiding and storage LUTS needed to add anticholinergics after 4 weeks of tamsulosin monotherapy. Patients with longer lasting symptoms and storage symptoms with small prostate volume may require the anticholinergic add-on. © 2014 John Wiley & Sons Ltd.

  18. Õiguspärane ja õigusvastane piinamine ius commune kriminaalprotsessis / Peter Oestmann ; tõlkinud Astri Schönfelder, tõlget konsulteeris Marju Luts-Sootak

    Index Scriptorium Estoniae

    Oestmann, Peter

    2012-01-01

    Piinamise õigusajaloolisest käsitlusest 16. sajandist alates. Piinamise normatiivse reguleerimise kolmest astmest. Artikkel põhineb autori saksakeelsel ettekandel "Rechtmäβige und rechtswidrige Folter im gemeinen Strafprozeβ" Tartus 27. veebruaril 2009

  19. "Kohtuniku amet on liiga raske neile": Eesti naisjuristide pürgimisest kohtunikuks kahe maailmasõja vahelisel perioodil / Merike Ristikivi, Marju Luts-Sootak, Heli-Triin Räis

    Index Scriptorium Estoniae

    Ristikivi, Merike, 1973-

    2017-01-01

    Kohtukorraldusest 1918-1941, kohtunikele esitatavatest nõuetest, kohtuameti kandidaadiks saamisest, Auguste Susi-Tannebaumi ja Olli Oleski taotlustest kohtuameti kandidaadiks saamiseks, Tartu vaeslastekohtu esimehest Ljubov Hütsist, esimestest naiskohtunikest nõukogude perioodil

  20. [Thomas Ditt: „Stoßtruppfakultät Breslau“. Rechtswissenschaft im „Grenzland Schlesien“ 1933-1945. (Beiträge zur Rechtsgeschichte des 20. Jahrhunderts ; 67). Mohr Siebeck. Tübingen 2011] / Marju Luts-Sootak

    Index Scriptorium Estoniae

    Luts-Sootak, Marju, 1966-

    2013-01-01

    Arvustus: Thomas Ditt. „Stoßtruppfakultät Breslau“. Rechtswissenschaft im „Grenzland Schlesien“ 1933-1945. (Beiträge zur Rechtsgeschichte des 20. Jahrhunderts, Bd. 67.) Mohr Siebeck. Tübingen 2011

  1. IMPLEMENTATION OF A VERILOG-BASED DIGITAL RECEIVER FOR 2.4 GHz ZIGBEE APPLICATIONS ON FPGA

    Directory of Open Access Journals (Sweden)

    RAFIDAH AHMAD

    2014-02-01

    Full Text Available This paper presents the implementation of a digital receiver for 2.4 GHz Zigbee IEEE 802.15.4 applications on a Spartan3E XC3S500E field programmable gate array (FPGA. The proposed digital receiver comprises an offset quadrature phase shift keying (OQPSK demodulator, chip synchronization, and a de-spreading block. A new design method that uses Verilog hardware description language (HDL code through Xilinx ISE version 12 was developed to design these blocks. These blocks were integrated into one top module for optimization. Simulation and measurement were conducted to verify the functionality of the receiver. Implementation results show that the receiver design matched the theoretical expectation. The implementation configuration required up to 22% less slices, flip-flops (FFs, and look-up tables (LUTs than that in previous research. The clock frequencies used were as low as 250 kHz and 2 MHz.

  2. H. Hiibuse šarž Oskar Lutsust (1986) : [eriväljaanne Oskar Lutsust

    Index Scriptorium Estoniae

    1987-01-01

    Fotod ; O. Luts 1903.a. ; Eduard Jürgenson ja Oskar Lutsu sõjaväefarmatseutidena 1911.a. ; Valentina, Georg ja Oskar Luts 1923.a. ; O. Lutsu õhtu ÜENÜTO-s 1927.a. ; O. Luts, A. Leetva-Müür, A. Mering ja A. Johanson ning V. Vent ; O. Luts, J. Aavik ja M. Nurmik 1922.a. Haapsalus ; O. Luts ja J. Sisask 1930-ndate aastate alguses

  3. The physics data base

    International Nuclear Information System (INIS)

    Gault, F.D.

    1984-01-01

    The physics data base is introduced along with its associated data base management system. The emphasis is on data and their use and a classification of data and of data bases is developed to distinguish compilation organizations. The characteristics of these organizations are examined briefly and the long term consequences of the physics data base discussed. (orig.)

  4. Solid Base Catalysis

    CERN Document Server

    Ono, Yoshio

    2011-01-01

    The importance of solid base catalysts has come to be recognized for their environmentally benign qualities, and much significant progress has been made over the past two decades in catalytic materials and solid base-catalyzed reactions. The book is focused on the solid base. Because of the advantages over liquid bases, the use of solid base catalysts in organic synthesis is expanding. Solid bases are easier to dispose than liquid bases, separation and recovery of products, catalysts and solvents are less difficult, and they are non-corrosive. Furthermore, base-catalyzed reactions can be performed without using solvents and even in the gas phase, opening up more possibilities for discovering novel reaction systems. Using numerous examples, the present volume describes the remarkable role solid base catalysis can play, given the ever increasing worldwide importance of "green" chemistry. The reader will obtain an overall view of solid base catalysis and gain insight into the versatility of the reactions to whic...

  5. Development and Translation of Hybrid Optoacoustic/Ultrasonic Tomography for Early Breast Cancer Detection

    Science.gov (United States)

    2015-09-01

    computed tomography (UST) can provide high-resolution anatomical images of breast lesions based on three complementary acoustic properties (speed-of- sound ...tomography (UST) can provide high-resolution anatomical images of breast lesions based on three complementary acoustic properties (speed-of- sound ...OAT) and laser-induced ultrasound tomography (LUT) to obtain coregistered maps of tissue optical absorption and speed of sound , displayed within the

  6. Design of cryptographically secure AES like S-Box using second-order reversible cellular automata for wireless body area network applications.

    Science.gov (United States)

    Gangadari, Bhoopal Rao; Rafi Ahamed, Shaik

    2016-09-01

    In biomedical, data security is the most expensive resource for wireless body area network applications. Cryptographic algorithms are used in order to protect the information against unauthorised access. Advanced encryption standard (AES) cryptographic algorithm plays a vital role in telemedicine applications. The authors propose a novel approach for design of substitution bytes (S-Box) using second-order reversible one-dimensional cellular automata (RCA 2 ) as a replacement to the classical look-up-table (LUT) based S-Box used in AES algorithm. The performance of proposed RCA 2 based S-Box and conventional LUT based S-Box is evaluated in terms of security using the cryptographic properties such as the nonlinearity, correlation immunity bias, strict avalanche criteria and entropy. Moreover, it is also shown that RCA 2 based S-Boxes are dynamic in nature, invertible and provide high level of security. Further, it is also found that the RCA 2 based S-Box have comparatively better performance than that of conventional LUT based S-Box.

  7. Evaluation of the Effectiveness of Nurse-Led Continence Care Treatments for Chinese Primary Care Patients with Lower Urinary Tract Symptoms.

    Directory of Open Access Journals (Sweden)

    Edmond P H Choi

    Full Text Available The aim of this study was to evaluate whether community-based nurse-led continence care interventions are effective in improving outcomes for adult Chinese primary care patients with lower urinary tract symptoms (LUTS.A case-controlled intervention study was conducted. An intervention group of 360 primary care patients enrolled into a nurse-led continence care programme were recruited by consecutive sampling. A control group of 360 primary care patients with LUTS identified by screening were recruited from the waiting rooms of primary care clinics by consecutive sampling. Both groups were monitored at baseline and at 12 months.Outcome measures included symptom severity, health-related quality of life (HRQOL, self-efficacy, global health and self-reported health service utilization at 12-months. The effect of the continence care programme on symptom severity and HRQOL was assessed by the difference-in-difference estimation, using independent t-test and multiple liner regression. Chi-square test was used to compare the self-efficacy, global health and self-reported health service utilization between the two groups at 12-months.After adjusting for baseline severity and socio-demographics, the intervention group had significant improvements in LUTS severity (P<0.05 and HRQOL (P<0.05. Improvements in the amount of urine leakage were not significantly different between the two groups. A higher proportion of subjects in the intervention group reported increased self-efficacy (43.48% vs. 66.83%, improved global health condition (17.74% vs. 41.5%, having doctor consultation (18.5% vs. 8.06, having medication due to LUTS (26.50% vs.11.29% and having non-drug therapy due to LUTS (59.5% vs.9.68%.Community-based nurse-led continence care can effectively alleviate symptoms, improve health-related quality of life, and enhance self-efficacy and the global health condition of Chinese male and female primary care patients with LUTS.

  8. Mobile Inquiry Based Learning

    NARCIS (Netherlands)

    Specht, Marcus

    2012-01-01

    Specht, M. (2012, 8 November). Mobile Inquiry Based Learning. Presentation given at the Workshop "Mobile inquiry-based learning" at the Mobile Learning Day 2012 at the Fernuniversität Hagen, Hagen, Germany.

  9. VectorBase

    Data.gov (United States)

    U.S. Department of Health & Human Services — VectorBase is a Bioinformatics Resource Center for invertebrate vectors. It is one of four Bioinformatics Resource Centers funded by NIAID to provide web-based...

  10. The ground based plan

    International Nuclear Information System (INIS)

    1989-01-01

    The paper presents a report of ''The Ground Based Plan'' of the United Kingdom Science and Engineering Research Council. The ground based plan is a plan for research in astronomy and planetary science by ground based techniques. The contents of the report contains a description of:- the scientific objectives and technical requirements (the basis for the Plan), the present organisation and funding for the ground based programme, the Plan, the main scientific features and the further objectives of the Plan. (U.K.)

  11. Stolen Base Physics

    Science.gov (United States)

    Kagan, David

    2013-01-01

    Few plays in baseball are as consistently close and exciting as the stolen base. While there are several studies of sprinting, the art of base stealing is much more nuanced. This article describes the motion of the base-stealing runner using a very basic kinematic model. The model will be compared to some data from a Major League game. The…

  12. The Role of Minimally Invasive Surgical Techniques in the Management of Large-gland Benign Prostatic Hypertrophy.

    Science.gov (United States)

    Sivarajan, Ganesh; Borofsky, Michael S; Shah, Ojas; Lingeman, James E; Lepor, Herbert

    2015-01-01

    Lower urinary tract symptoms (LUTS) secondary to benign prostatic hypertrophy (BPH) are among the most common medical issues for aging men. Population-based studies suggest that 13.8% of men in their 40s and more than 40% of men over age 60 have BPH. When LUTS are refractory to medical therapy and bothersome enough to warrant surgical intervention, transurethral resection of the prostate and open simple prostatectomy have been the historical reference-standard procedures for decades. Both procedures are highly effective and offer durable improvements in urinary functional outcomes. However, they also have the potential for considerable perioperative complications and morbidity. In an effort to limit surgical morbidity, a variety of minimally invasive surgical techniques to treat BPH have been introduced. Herein we present a comprehensive, evidence-based review of the efficacy and safety profile of modern minimally invasive treatments for large-gland BPH.

  13. A Retrieval of Tropical Latent Heating Using the 3D Structure of Precipitation Features

    Energy Technology Data Exchange (ETDEWEB)

    Ahmed, Fiaz; Schumacher, Courtney; Feng, Zhe; Hagos, Samson

    2016-09-01

    Traditionally, radar-based latent heating retrievals use rainfall to estimate the total column-integrated latent heating and then distribute that heating in the vertical using a model-based look-up table (LUT). In this study, we develop a new method that uses size characteristics of radar-observed precipitating echo (i.e., area and mean echo-top height) to estimate the vertical structure of latent heating. This technique (named the Convective-Stratiform Area [CSA] algorithm) builds on the fact that the shape and magnitude of latent heating profiles are dependent on the organization of convective systems and aims to avoid some of the pitfalls involved in retrieving accurate rainfall amounts and microphysical information from radars and models. The CSA LUTs are based on a high-resolution Weather Research and Forecasting model (WRF) simulation whose domain spans much of the near-equatorial Indian Ocean. When applied to S-PolKa radar observations collected during the DYNAMO/CINDY2011/AMIE field campaign, the CSA retrieval compares well to heating profiles from a sounding-based budget analysis and improves upon a simple rain-based latent heating retrieval. The CSA LUTs also highlight the fact that convective latent heating increases in magnitude and height as cluster area and echo-top heights grow, with a notable congestus signature of cooling at mid levels. Stratiform latent heating is less dependent on echo-top height, but is strongly linked to area. Unrealistic latent heating profiles in the stratiform LUT, viz., a low-level heating spike, an elevated melting layer, and net column cooling were identified and corrected for. These issues highlight the need for improvement in model parameterizations, particularly in linking microphysical phase changes to larger mesoscale processes.

  14. Recent achievements in lossless compression of hyperspectral data

    Science.gov (United States)

    Aiazzi, Bruno; Alparone, Luciano; Baronti, Stefano; Garzelli, Andrea

    2010-08-01

    Algorithms for compression of hyperspectral data are commonly evaluated on a readily available collection of Airborne Visible/Infrared Imaging Spectrometer (AVIRIS) images. The calibrated images collected in 1997 show sample value distributions which contain artificial regularities introduced by the conversion of raw data values to radiance units. Being optimal on images having flat histograms, classical DPCM methods do not work in their best conditions. Conversely, the lower lossless bit rates are achieved by algorithms based on lookup-table (LUT) that significantly exploit these artifacts. This singular behavior has not been widely reported and may not be widely recognized. The main consequence is these performances can be misleading if they are extrapolated to images that lack such artifacts. In fact, LUT-based algorithms are not able to achieve the best compression performances on a set of more recent (2006) AVIRIS images that do not contain appreciable calibration-induced artifacts. This is due to a different scaling factor in the calibration procedure. Goal of this paper is to provide a thorough comparison of advanced classical DPCM and LUT-based methods both on the 1997 and the 2006 AVIRIS datasets. In the 2006 data set, both calibrated data (radiances) and raw data (digital counts) have been compressed. Results strengthen the conclusion that even the most developed LUT-based methods do not show improvements over the state of the art when calibration induced artifacts are missing. Concerning classical DPCMs, the methods based on a classified spectral prediction, whose idea was originally developed by the authors in 2001, provide the best compression results.

  15. Value-based pricing

    OpenAIRE

    Netseva-Porcheva Tatyana

    2010-01-01

    The main aim of the paper is to present the value-based pricing. Therefore, the comparison between two approaches of pricing is made - cost-based pricing and value-based pricing. The 'Price sensitively meter' is presented. The other topic of the paper is the perceived value - meaning of the perceived value, the components of perceived value, the determination of perceived value and the increasing of perceived value. In addition, the best company strategies in matrix 'value-cost' are outlined. .

  16. Soy-based polyols

    Science.gov (United States)

    Suppes, Galen; Lozada, Zueica; Lubguban, Arnold

    2013-06-25

    The invention provides processes for preparing soy-based oligomeric polyols or substituted oligomeric polyols, as well as urethane bioelasteromers comprising the oligomeric polyols or substituted oligomeric polyols.

  17. XML-BASED REPRESENTATION

    Energy Technology Data Exchange (ETDEWEB)

    R. KELSEY

    2001-02-01

    For focused applications with limited user and use application communities, XML can be the right choice for representation. It is easy to use, maintain, and extend and enjoys wide support in commercial and research sectors. When the knowledge and information to be represented is object-based and use of that knowledge and information is a high priority, then XML-based representation should be considered. This paper discusses some of the issues involved in using XML-based representation and presents an example application that successfully uses an XML-based representation.

  18. Imagery Data Base Facility

    Data.gov (United States)

    Federal Laboratory Consortium — The Imagery Data Base Facility supports AFRL and other government organizations by providing imagery interpretation and analysis to users for data selection, imagery...

  19. Synthetic Base Fluids

    Science.gov (United States)

    Brown, M.; Fotheringham, J. D.; Hoyes, T. J.; Mortier, R. M.; Orszulik, S. T.; Randles, S. J.; Stroud, P. M.

    The chemical nature and technology of the main synthetic lubricant base fluids is described, covering polyalphaolefins, alkylated aromatics, gas-to-liquid (GTL) base fluids, polybutenes, aliphatic diesters, polyolesters, polyalkylene glycols or PAGs and phosphate esters.Other synthetic lubricant base oils such as the silicones, borate esters, perfluoroethers and polyphenylene ethers are considered to have restricted applications due to either high cost or performance limitations and are not considered here.Each of the main synthetic base fluids is described for their chemical and physical properties, manufacture and production, their chemistry, key properties, applications and their implications when used in the environment.

  20. Strengths-based Learning

    DEFF Research Database (Denmark)

    Ledertoug, Mette Marie

    Strength-based learning - Children͛s Character Strengths as Means to their Learning Potential͛ is a Ph.D.-project aiming to create a strength-based mindset in school settings and at the same time introducing strength-based interventions as specific tools to improve both learning and well......-being. The Ph.D.-project in Strength-based learning took place in a Danish school with 750 pupils age 6-16 and a similar school was functioning as a control group. The presentation will focus on both the aware-explore-apply processes and the practical implications for the schools involved, and on measurable...

  1. Monitoring Knowledge Base (MKB)

    Data.gov (United States)

    U.S. Environmental Protection Agency — The Monitoring Knowledge Base (MKB) is a compilation of emissions measurement and monitoring techniques associated with air pollution control devices, industrial...

  2. Case-based reasoning

    CERN Document Server

    Kolodner, Janet

    1993-01-01

    Case-based reasoning is one of the fastest growing areas in the field of knowledge-based systems and this book, authored by a leader in the field, is the first comprehensive text on the subject. Case-based reasoning systems are systems that store information about situations in their memory. As new problems arise, similar situations are searched out to help solve these problems. Problems are understood and inferences are made by finding the closest cases in memory, comparing and contrasting the problem with those cases, making inferences based on those comparisons, and asking questions whe

  3. Medical and Surgical Treatment Modalities for Lower Urinary Tract Symptoms in the Male Patient Secondary to Benign Prostatic Hyperplasia: A Review.

    Science.gov (United States)

    Macey, Matthew Ryan; Raynor, Mathew C

    2016-09-01

    Benign prostatic hyperplasia (BPH) with lower urinary tract symptoms (LUTS) is one of the most common ailments affecting aging men. Symptoms typically associated with BPH include weak stream, hesitancy, urgency, frequency, and nocturia. More serious complications of BPH include urinary retention, gross hematuria, bladder calculi, recurrent urinary tract infection, obstructive uropathy, and renal failure. Evaluation of BPH includes a detailed history, objective assessment of urinary symptoms with validated questionnaires, and measurement of bladder function parameters, including uroflowmetry and postvoid residual. In general, treatment of LUTS associated with BPH is based on the effect of the symptoms on quality of life (QOL) and include medical therapy aimed at reducing outlet obstruction or decreasing the size of the prostate. If medical therapy fails or is contraindicated, various surgical options exist. As the elderly population continues to grow, the management of BPH will become more common and important in maintaining patient's QOL.

  4. Analytical Method to Estimate the Complex Permittivity of Oil Samples

    Directory of Open Access Journals (Sweden)

    Lijuan Su

    2018-03-01

    Full Text Available In this paper, an analytical method to estimate the complex dielectric constant of liquids is presented. The method is based on the measurement of the transmission coefficient in an embedded microstrip line loaded with a complementary split ring resonator (CSRR, which is etched in the ground plane. From this response, the dielectric constant and loss tangent of the liquid under test (LUT can be extracted, provided that the CSRR is surrounded by such LUT, and the liquid level extends beyond the region where the electromagnetic fields generated by the CSRR are present. For that purpose, a liquid container acting as a pool is added to the structure. The main advantage of this method, which is validated from the measurement of the complex dielectric constant of olive and castor oil, is that reference samples for calibration are not required.

  5. Design of a magnetic-tunnel-junction-oriented nonvolatile lookup table circuit with write-operation-minimized data shifting

    Science.gov (United States)

    Suzuki, Daisuke; Hanyu, Takahiro

    2018-04-01

    A magnetic-tunnel-junction (MTJ)-oriented nonvolatile lookup table (LUT) circuit, in which a low-power data-shift function is performed by minimizing the number of write operations in MTJ devices is proposed. The permutation of the configuration memory cell for read/write access is performed as opposed to conventional direct data shifting to minimize the number of write operations, which results in significant write energy savings in the data-shift function. Moreover, the hardware cost of the proposed LUT circuit is small since the selector is shared between read access and write access. In fact, the power consumption in the data-shift function and the transistor count are reduced by 82 and 52%, respectively, compared with those in a conventional static random-access memory-based implementation using a 90 nm CMOS technology.

  6. Secure base stations

    NARCIS (Netherlands)

    Bosch, Peter; Brusilovsky, Alec; McLellan, Rae; Mullender, Sape J.; Polakos, Paul

    2009-01-01

    With the introduction of the third generation (3G) Universal Mobile Telecommunications System (UMTS) base station router (BSR) and fourth generation (4G) base stations, such as the 3rd Generation Partnership Project (3GPP) Long Term Evolution (LTE) Evolved Node B (eNB), it has become important to

  7. Mutually unbiased bases

    Indian Academy of Sciences (India)

    Abstract. After a brief review of the notion of a full set of mutually unbiased bases in an N- dimensional Hilbert space, we summarize the work of Wootters and Fields (W K Wootters and. B C Fields, Ann. Phys. 191, 363 (1989)) which gives an explicit construction for such bases for the case N pr, where p is a prime. Further, we ...

  8. Game-Based Teaching

    DEFF Research Database (Denmark)

    Hanghøj, Thorkild

    2013-01-01

    This chapter outlines theoretical and empirical perspectives on how Game-Based Teaching can be integrated within the context of formal schooling. Initially, this is done by describing game scenarios as models for possible actions that need to be translated into curricular knowledge practices...... approaches to game-based teaching, which may or may not correspond with the pedagogical models of particular games....

  9. Home-based care

    African Journals Online (AJOL)

    Mrs. Patience Edoho Samson-Akpan

    PLWHA. The recommendation was that home based care should be encouraged and given priority by stake holders in the management of PLWHA. KEY WORDS: home-based care, quality of life, basic nursing care, psychosocial care. INTRODUCTION. HIV/AIDS is a chronic progressive disease which threatens the quality ...

  10. Diffusion Based Photon Mapping

    DEFF Research Database (Denmark)

    Schjøth, Lars; Olsen, Ole Fogh; Sporring, Jon

    2006-01-01

    . To address this problem we introduce a novel photon mapping algorithm based on nonlinear anisotropic diffusion. Our algorithm adapts according to the structure of the photon map such that smoothing occurs along edges and structures and not across. In this way we preserve the important illumination features......, while eliminating noise. We call our method diffusion based photon mapping....

  11. Skull base tumours

    Energy Technology Data Exchange (ETDEWEB)

    Borges, Alexandra [Instituto Portugues de Oncologia Francisco Gentil, Servico de Radiologia, Rua Professor Lima Basto, 1093 Lisboa Codex (Portugal)], E-mail: borgesalexandra@clix.pt

    2008-06-15

    With the advances of cross-sectional imaging radiologists gained an increasing responsibility in the management of patients with skull base pathology. As this anatomic area is hidden to clinical exam, surgeons and radiation oncologists have to rely on imaging studies to plan the most adequate treatment. To fulfil these endeavour radiologists need to be knowledgeable about skull base anatomy, about the main treatment options available, their indications and contra-indications and needs to be aware of the wide gamut of pathologies seen in this anatomic region. This article will provide a radiologists' friendly approach to the central skull base and will review the most common central skull base tumours and tumours intrinsic to the bony skull base.

  12. Context Based Wikipedia Linking

    Science.gov (United States)

    Granitzer, Michael; Seifert, Christin; Zechner, Mario

    Automatically linking Wikipedia pages can be done either content based by exploiting word similarities or structure based by exploiting characteristics of the link graph. Our approach focuses on a content based strategy by detecting Wikipedia titles as link candidates and selecting the most relevant ones as links. The relevance calculation is based on the context, i.e. the surrounding text of a link candidate. Our goal was to evaluate the influence of the link-context on selecting relevant links and determining a links best-entry-point. Results show, that a whole Wikipedia page provides the best context for resolving link and that straight forward inverse document frequency based scoring of anchor texts achieves around 4% less Mean Average Precision on the provided data set.

  13. Evidence-based radiography

    International Nuclear Information System (INIS)

    Hafslund, Bjorg; Clare, Judith; Graverholt, Birgitte; Wammen Nortvedt, Monica

    2008-01-01

    Evidence-based practice (EBP) offers the integration of the best research evidence with clinical knowledge and expertise and patient values. EBP is a well known term in health care. This paper discusses the implementation of EBP into radiography and introduces the term evidence-based radiography. Evidence-based radiography is radiography informed and based on the combination of clinical expertise and the best available research-based evidence, patient preferences and resources available. In Norway, EBP in radiography is being debated and radiographers are discussing the challenges of implementing EBP in both academic and clinical practice. This discussion paper explains why EBP needs to be a basis for a radiography curriculum and a part of radiographers' practice. We argue that Norwegian radiographers must increase participation in research and developing practice within their specific radiographic domain

  14. Characterization of lower urinary tract symptoms in patients with idiopathic normal pressure hydrocephalus.

    Science.gov (United States)

    Krzastek, Sarah C; Bruch, William M; Robinson, Samuel P; Young, Harold F; Klausner, Adam P

    2017-04-01

    The purpose of this study was to evaluate lower urinary tract symptoms (LUTS) in idiopathic normal pressure hydrocephalus (iNPH). Patients with new-onset iNPH were prospectively evaluated for LUTS via detailed history and physical, and administration of questionnaires from the International Consultation on Incontinence to assess incontinence (ICIq-UI), overactive bladder (ICIq-OAB), and quality of life (ICIq-LUTqol), as well as the American Urological Association Symptom Score bother scale. All patients with moderate-to-severe LUTS were offered urodynamic testing. Sub-analysis was performed based on gender, medical comorbidities, and age. Fifty-five consecutive patients with iNPH completed the initial evaluation and surveys. Total urinary incontinence score was mild to moderate (8.71 ± 0.64: 0-21 scale) with 90.9% experiencing leakage and 74.5% reporting urge incontinence. The most common OAB symptom was nocturia (2.2 ± 0.14: 0-4 scale) with urge incontinence the most bothersome (3.71 ± 0.44: 0-10 scale). Quality-of-life impact was moderate (4.47 ± 0.4: 0-10 scale) and American Urological Association Symptom Score bother scale was 2.89 ± 0.22 (0-6 scale). Urodynamics testing revealed 100% detrusor overactivity and mean bladder capacity of 200 mL. Several differences were identified based on gender, medical comorbidities, and age. Patients with iNPH present with mild-moderate incontinence of which nocturia is the most common symptom, urge incontinence the most bothersome, with 100% of patients having detrusor overactivity. Younger patients experienced greater bother related to LUTS. To our knowledge, this is the only prospective evaluation of urinary symptoms in patients with new-onset iNPH. © 2016 Wiley Periodicals, Inc.

  15. Appearance of High Endothelial Venule-Like Vessels in Benign Prostatic Hyperplasia is Associated With Lower Urinary tract Symptoms.

    Science.gov (United States)

    Inamura, So; Shinagawa, Tomochika; Hoshino, Hitomi; Sakai, Yasuhiro; Imamura, Yoshiaki; Yokoyama, Osamu; Kobayashi, Motohiro

    2017-05-01

    Chronic prostatic inflammation is implicated in the pathogenesis of benign prostatic hyperplasia (BPH)-associated lower urinary tract symptoms (LUTS). Previous studies evaluated the degree of chronic prostatic inflammation based on histological scores, which may contain subjective factors. We previously demonstrated that the number of high endothelial venule (HEV)-like vessels correlates positively with the magnitude of inflammation in chronic inflammatory gastrointestinal diseases. Here, we evaluated the degree of BPH-associated chronic prostate inflammation based on appearance of HEV-like vessels and determined whether the extent of inflammation correlated with LUTS severity, as evaluated by a urodynamic study. Eighty-six BPH tissue specimens derived from patients who had undergone urodynamic analysis were immunostained for CD34 and MECA-79 to determine HEV-like vessel number. Triple immunohistochemistry for either CD3 and CD20 or CD4 and CD8, together with MECA-79, was conducted to identify lymphocyte subsets associated with HEV-like vessels. We also determined whether the magnitude of chronic prostatic inflammation, as assessed by HEV-like vessel number, correlated with the degree of LUTS. HEV-like vessels were induced in lymphoid aggregates seen frequently in BPH. The number of HEV-like vessels positively correlated not only with the magnitude of chronic prostatic inflammation but also with the degree of LUTS, particularly with symptoms associated with voiding function, which was measured objectively in a pressure flow study. Chronic prostate inflammation may promote BPH and resulting voiding dysfunction. Assessment of the number of HEV-like vessels could be a surrogate for identifying the degree of chronic prostatic inflammation. Prostate 77:794-802, 2017. © 2017 Wiley Periodicals, Inc. © 2017 Wiley Periodicals, Inc.

  16. Comparison of 3 Different Teaching Methods for a Behavioral Therapy Program for Female Overactive Bladder: A Randomized Controlled Trial.

    Science.gov (United States)

    Gezginci, Elif; Iyigun, Emine; Yilmaz, Sercan

    The purpose of this study was to compare the effect of 3 instructional methods for behavioral therapy on lower urinary tract symptom (LUTS) severity and health-related quality of life (HRQOL) in women with overactive bladder. Single-center, parallel-group, randomized, clinical trial. The sample comprised 60 women diagnosed with overactive bladder. The study setting was a university-based female urology clinic in Ankara, Turkey; data were collected from November 2012 to May 2013. Eligible participants were ambulatory women 18 years or older with predominant overactive bladder and urge urinary incontinence (UI) symptoms, with or without stress UI symptoms. Subjects were randomized into 4 groups based on educational intervention; group 1 received structured verbal instruction plus a leaflet, group 2 received structured verbal instruction, group 3 received a leaflet alone, and group 4 received usual care that included unstructured verbal counseling about continence care. The primary outcome measures were Incontinence Impact Questionnaire-7 (IIQ-7) and Urinary Distress Inventory-6 (UDI-6) scores. We also measured changes in UI-specific HRQOL scores via the Urinary Incontinence Quality of Life Instrument (I-QOL). All outcomes were measured before and 6 to 8 weeks after the interventions. The Wilcoxon test was used to identify differences in LUTS severity and HRQOL before and after the educational intervention. The Kruskall-Wallis test was used to compare differences among the groups. The severity of LUTS and UI-specific quality of life assessed by the IIQ-7, UDI-6, and I-QOL scores significantly improved after training in all 4 groups (P < .05). The group that received structured verbal instruction plus an educational leaflet achieved significantly lower LUTS scores and significantly higher UI-specific HRQOL when compared to the other groups (P < .05). Findings suggest that structured verbal instruction plus educational leaflet is the most effective method of bladder

  17. Epidemiology of underactive bladder: Common but underresearched

    Directory of Open Access Journals (Sweden)

    Young Dong Yu

    2017-12-01

    Full Text Available Detrusor underactivity (DU or underactive bladder is a common cause of lower urinary tract symptoms (LUTS, but it is still poorly understood and underresearched. Although there has been a proposed definition by International Continence Society in 2002, no widely accepted diagnostic criteria have been established for this entity in clinical practice. Therefore, it has been rare to identify community-based researches on the epidemiology of DU until now. Only certain studies have reported the prevalence of DU in community-dwelling cohorts with significant LUTS using arbitrary urodynamic criteria for DU and these investigations have indicated that DU accounts for 25%–48% and 12%–24% of elderly men and women, respectively. However, these prevalence data based on the urodynamic definition apparently are limited in their extrapolation to the general population. Despite the clinical ambiguity of DU, its clinical effects on quality of life are quite significant, especially in the elderly population. An overall and proper comprehension of epidemiologic studies of DU may be crucial for better insight into DU, relevant decision making, and a more reasonable allocation of health resources. Therefore, researchers should find clues to the solution for the clinical diagnosis of this specific condition of LUTS from contemporary epidemiologic studies and try to develop a possible definition of ‘clinical’ DU from further studies.

  18. Misclassifying the indications for prostate-specific antigen testing may bias case-control studies of the efficacy of prostate cancer screening.

    Science.gov (United States)

    Hoffman, Richard M; Adams-Cameron, Meg L; Murata, Glen H

    2004-10-01

    In the absence of data from randomized controlled trials, prostate cancer (CaP) screening recommendations may be based on observational studies that contrast exposure to screening between cases and controls. We evaluated the potential bias from mis-classifying indications for PSA testing in observational studies of CaP screening. We randomly selected men undergoing PSA testing and obtained data on PSA results and prostate biopsies. Data were linked with a tumor registry to identify incident and prevalent cases of CaP. We abstracted medical records for 45 incident cases with CaP and 118 controls without, recording information on lower urinary tract symptoms (LUTS), constitutional symptoms, and digital rectal examination findings. PSA testing was classified as definitely, likely, or possibly screening, or not screening based on clinical history. Changing the definitions for PSA screening to variably exclude men with LUTS and enlarged prostates differentially lowered the frequency of screening. With more restrictive screening definitions, the odds ratio for screening decreased from 0.47 to 0.07. Accurately classifying PSA testing status is difficult because LUTS are common among men targeted for CaP screening. Failing to correctly classify PSA tests may bias study results.

  19. QuickBase

    CERN Document Server

    Conner, Nancy

    2007-01-01

    Ready to put Intuit's QuickBase to work? Our new Missing Manual shows you how to capture, modify, share, and manage data and documents with this web-based data-sharing program quickly and easily. No longer do you have to coordinate your team through a blizzard of emails or play frustrating games of "guess which document is the right one."QuickBase saves your organization time and money, letting you manage and share the information that makes your business tick: sales figures, project timelines, drafts of documents, purchase or work requests--whatever information you need to keep business flowi

  20. Equipment fragility data base

    International Nuclear Information System (INIS)

    Cover, L.E.

    1982-03-01

    Part of the effort of the Seismic Safety Margins Research Program (SSMRP) has been directed at generating a fragility data base for equipment used in control and safety systems in commercial nuclear power plants. Component fragility data exist in various forms, depending on their content, intended use, and level of reduction. Th data are stored in a relational data base on the LLNL CDC 7600 computers; this provides easy accessibility for LLNL computer users. This report describes the present structure of the data base and presents its contents through the use of tables

  1. Value-based pricing

    Directory of Open Access Journals (Sweden)

    Netseva-Porcheva Tatyana

    2010-01-01

    Full Text Available The main aim of the paper is to present the value-based pricing. Therefore, the comparison between two approaches of pricing is made - cost-based pricing and value-based pricing. The 'Price sensitively meter' is presented. The other topic of the paper is the perceived value - meaning of the perceived value, the components of perceived value, the determination of perceived value and the increasing of perceived value. In addition, the best company strategies in matrix 'value-cost' are outlined. .

  2. Design-Based Research

    DEFF Research Database (Denmark)

    Gynther, Karsten; Christensen, Ove; Petersen, Trine Brun

    2012-01-01

    I denne artikel introduceres Design Based Research for første gang på dansk i et videnskabeligt tidsskrift. Artiklen præsenterer de grundlæggende antagelser, som ligger til grund for Design Based Research-traditionen, og artiklen diskuterer de principper, som ligger til grund for gennemførelse af...... et DBR-forskningsprojekt. Med udgangspunkt i forsknings- og udviklingsprojektet ELYK: E-læring, Yderområder og Klyngedannelse, præsenteres den innovationsmodel, som projektet har udviklet med udgangspunkt i Design Based Research traditionen. ELYKs DBR innovationsmodel har vist sig effektiv i forhold...

  3. Nature-based integration

    DEFF Research Database (Denmark)

    Pitkänen, Kati; Oratuomi, Joose; Hellgren, Daniela

    Increased attention to, and careful planning of the integration of migrants into Nordic societies is ever more important. Nature based integration is a new solution to respond to this need. This report presents the results of a Nordic survey and workshop and illustrates current practices of nature...... based integration by case study descriptions from Denmark, Sweden Norway and Finland. Across Nordic countries several practical projects and initiatives have been launched to promote the benefits of nature in integration and there is also growing academic interest in the topic. Nordic countries have...... the potential of becoming real forerunners in nature based integration even at the global scale....

  4. Cheboygan Vessel Base

    Data.gov (United States)

    Federal Laboratory Consortium — Cheboygan Vessel Base (CVB), located in Cheboygan, Michigan, is a field station of the USGS Great Lakes Science Center (GLSC). CVB was established by congressional...

  5. Biomimetics: nature based innovation

    National Research Council Canada - National Science Library

    Bar-Cohen, Yoseph

    2012-01-01

    "Based on the concept that nature offers numerous sources of inspiration for inventions related to mechanisms, materials, processes, and algorithms, this book covers the topic of biomimetics and the inspired innovation...

  6. Kelomehele preemia Baseli festivalil

    Index Scriptorium Estoniae

    2000-01-01

    Baselis festivalil "VIPER - International Festival for Film Video and New Media" tunnistati parimaks CD-ROMiks Gustav Deutschi/Anna Schimeki "Odysee today", netiprojektiks itaallaste "01.ORG", äramärkimispreemia - Raivo Kelomehe "Videoweaver"

  7. Hanscom Air Force Base

    Data.gov (United States)

    Federal Laboratory Consortium — MIT Lincoln Laboratory occupies 75 acres (20 acres of which are MIT property) on the eastern perimeter of Hanscom Air Force Base, which is at the nexus of Lexington,...

  8. Network-Based Effectiveness

    National Research Council Canada - National Science Library

    Friman, Henrik

    2006-01-01

    ... (extended from Leavitt, 1965). This text identifies aspects of network-based effectiveness that can benefit from a better understanding of leadership and management development of people, procedures, technology, and organizations...

  9. Evidence based practice

    DEFF Research Database (Denmark)

    Hjørland, Birger

    2011-01-01

    Evidence-based practice (EBP) is an influential interdisciplinary movement that originated in medicine as evidence-based medicine (EBM) about 1992. EBP is of considerable interest to library and information science (LIS) because it focuses on a thorough documentation of the basis for the decision...... making that is established in research as well as an optimization of every link in documentation and search processes. EBP is based on the philosophical doctrine of empiricism and, therefore, it is subject to the criticism that has been raised against empiricism. The main criticism of EBP...... is that practitioners lose their autonomy, that the understanding of theory and of underlying mechanisms is weakened, and that the concept of evidence is too narrow in the empiricist tradition. In this article, it is suggested that we should speak of “research-based practice” rather than EBP, because this term is open...

  10. WormBase

    Data.gov (United States)

    U.S. Department of Health & Human Services — WormBase is an international consortium of biologists and computer scientists dedicated to providing the research community with accurate, current, accessible...

  11. Loyalty Based Investment

    OpenAIRE

    Pei-Hsuan Lee; Ching-Wen Wang

    2010-01-01

    This study investigates the loyalty-based investment behavior in Taiwan. The link between team associations and loyalty has been examined to understand the characteristics of loyalty-based investors. The results revealed that both behavioral loyalty and attitudinal loyalty have significant positive effects on fans' investment intentions. Moreover, both attributes and benefits are significantly and positively related to either aspect of loyalty. In specific, behavioral loyalty has a higher inf...

  12. Game-based telerehabilitation.

    Science.gov (United States)

    Lange, B; Flynn, Sheryl M; Rizzo, A A

    2009-03-01

    This article summarizes the recent accomplishments and current challenges facing game-based virtual reality (VR) telerehabilitation. Specifically this article addresses accomplishments relative to realistic practice scenarios, part to whole practice, objective measurement of performance and progress, motivation, low cost, interaction devices and game design. Furthermore, a description of the current challenges facing game based telerehabilitation including the packaging, internet capabilities and access, data management, technical support, privacy protection, seizures, distance trials, scientific scrutiny and support from insurance companies.

  13. REST based mobile applications

    Science.gov (United States)

    Rambow, Mark; Preuss, Thomas; Berdux, Jörg; Conrad, Marc

    2008-02-01

    Simplicity is the major advantage of REST based webservices. Whereas SOAP is widespread in complex, security sensitive business-to-business aplications, REST is widely used for mashups and end-user centric applicatons. In that context we give an overview of REST and compare it to SOAP. Furthermore we apply the GeoDrawing application as an example for REST based mobile applications and emphasize on pros and cons for the use of REST in mobile application scenarios.

  14. Participatory design based research

    DEFF Research Database (Denmark)

    Dau, Susanne; Falk, Lars; Jensen, Louise Bach

    This poster reveal how participatory design based research by the use of a CoED inspired creative process can be used for designing solutions to problems regarding students study activities outside campus.......This poster reveal how participatory design based research by the use of a CoED inspired creative process can be used for designing solutions to problems regarding students study activities outside campus....

  15. Knowledge Based Strategy

    OpenAIRE

    Nicolescu, Ovidiu

    2006-01-01

    The paper is focused on the essential of knowledge-based strategy taking into consideration the theoretical and practical development during the last 10 years and especially knowledge revolution. It demonstrates the specificity of the company knowledgebased strategies and their necesity. More than this it presents essential elements regarding how to elaborate and to implement a knowledge based strategy starting from well know research in the field.

  16. Evidence-Based Development

    DEFF Research Database (Denmark)

    Hertzum, Morten; Simonsen, Jesper

    2004-01-01

    Systems development is replete with projects that represent substantial resource investments but result in systems that fail to meet users’ needs. Evidence-based development is an emerging idea intended to provide means for managing customer-vendor relationships and working systematically toward...... and electronic patient records for diabetes patients, this paper reports research in progress regarding the prospects and pitfalls of evidence-based development....

  17. [Endonasal skull base endoscopy].

    Science.gov (United States)

    Simal-Julián, Juan Antonio; Miranda-Lloret, Pablo; Pancucci, Giovanni; Evangelista-Zamora, Rocío; Pérez-Borredá, Pedro; Sanromán-Álvarez, Pablo; Perez-de-Sanromán, Laila; Botella-Asunción, Carlos

    2013-01-01

    The endoscopic endonasal techniques used in skull base surgery have evolved greatly in recent years. Our study objective was to perform a qualitative systematic review of the likewise systematic reviews in published English language literature, to examine the evidence and conclusions reached in these studies comparing transcranial and endoscopic approaches in skull base surgery. We searched the references on the MEDLINE and EMBASE electronic databases selecting the systematic reviews, meta-analyses and evidence based medicine reviews on skull based pathologies published from January 2000 until January 2013. We focused on endoscopic impact and on microsurgical and endoscopic technique comparisons. Full endoscopic endonasal approaches achieved gross total removal rates of craniopharyngiomas and chordomas higher than those for transcranial approaches. In anterior skull base meningiomas, complete resections were more frequently achieved after transcranial approaches, with a trend in favour of endoscopy with respect to visual prognosis. Endoscopic endonasal approaches minimised the postoperative complications after the treatment of cerebrospinal fluid (CSF) leaks, encephaloceles, meningoceles, craniopharyngiomas and chordomas, with the exception of postoperative CSF leaks. Randomized multicenter studies are necessary to resolve the controversy over endoscopic and microsurgical approaches in skull base surgery. Copyright © 2013 Sociedad Española de Neurocirugía. Published by Elsevier España. All rights reserved.

  18. LDEF materials data bases

    Science.gov (United States)

    Funk, Joan G.; Strickland, John W.; Davis, John M.

    1993-01-01

    The Long Duration Exposure Facility (LDEF) and the accompanying experiments were composed of and contained a wide variety of materials representing the largest collection of materials flown in low Earth orbit (LEO) and retrieved for ground based analysis to date. The results and implications of the mechanical, thermal, optical, and electrical data from these materials are the foundation on which future LEO space missions will be built. The LDEF Materials Special Investigation Group (MSIG) has been charged with establishing and developing data bases to document these materials and their performance to assure not only that the data are archived for future generations but also that the data are available to the spacecraft user community in an easily accessed, user-friendly form. This paper discusses the format and content of the three data bases developed or being developed to accomplish this task. The hardware and software requirements for each of these three data bases are discussed along with current availability of the data bases. This paper also serves as a user's guide to the MAPTIS LDEF Materials Data Base.

  19. Swarm-based medicine.

    Science.gov (United States)

    Putora, Paul Martin; Oldenburg, Jan

    2013-09-19

    Occasionally, medical decisions have to be taken in the absence of evidence-based guidelines. Other sources can be drawn upon to fill in the gaps, including experience and intuition. Authorities or experts, with their knowledge and experience, may provide further input--known as "eminence-based medicine". Due to the Internet and digital media, interactions among physicians now take place at a higher rate than ever before. With the rising number of interconnected individuals and their communication capabilities, the medical community is obtaining the properties of a swarm. The way individual physicians act depends on other physicians; medical societies act based on their members. Swarm behavior might facilitate the generation and distribution of knowledge as an unconscious process. As such, "swarm-based medicine" may add a further source of information to the classical approaches of evidence- and eminence-based medicine. How to integrate swarm-based medicine into practice is left to the individual physician, but even this decision will be influenced by the swarm.

  20. Optimally Fortifying Logic Reliability through Criticality Ranking

    Directory of Open Access Journals (Sweden)

    Yu Bai

    2015-02-01

    Full Text Available With CMOS technology aggressively scaling towards the 22-nm node, modern FPGA devices face tremendous aging-induced reliability challenges due to bias temperature instability (BTI and hot carrier injection (HCI. This paper presents a novel anti-aging technique at the logic level that is both scalable and applicable for VLSI digital circuits implemented with FPGA devices. The key idea is to prolong the lifetime of FPGA-mapped designs by strategically elevating the VDD values of some LUTs based on their modular criticality values. Although the idea of scaling VDD in order to improve either energy efficiency or circuit reliability has been explored extensively, our study distinguishes itself by approaching this challenge through an analytical procedure, therefore being able to maximize the overall reliability of the target FPGA design by rigorously modeling the BTI-induced device reliability and optimally solving the VDD assignment problem. Specifically, we first develop a systematic framework to analytically model the reliability of an FPGA LUT (look-up table, which consists of both RAM memory bits and associated switching circuit. We also, for the first time, establish the relationship between signal transition density and a LUT’s reliability in an analytical way. This key observation further motivates us to define the modular criticality as the product of signal transition density and the logic observability of each LUT. Finally, we analytically prove, for the first time, that the optimal way to improve the overall reliability of a whole FPGA device is to fortify individual LUTs according to their modular criticality. To the best of our knowledge, this work is the first to draw such a conclusion.

  1. Paper based electronics platform

    KAUST Repository

    Nassar, Joanna Mohammad

    2017-07-20

    A flexible and non-functionalized low cost paper-based electronic system platform fabricated from common paper, such as paper based sensors, and methods of producing paper based sensors, and methods of sensing using the paper based sensors are provided. A method of producing a paper based sensor can include the steps of: a) providing a conventional paper product to serve as a substrate for the sensor or as an active material for the sensor or both, the paper product not further treated or functionalized; and b) applying a sensing element to the paper substrate, the sensing element selected from the group consisting of a conductive material, the conductive material providing contacts and interconnects, sensitive material film that exhibits sensitivity to pH levels, a compressible and/or porous material disposed between a pair of opposed conductive elements, or a combination of two of more said sensing elements. The method of sensing can further include measuring, using the sensing element, a change in resistance, a change in voltage, a change in current, a change in capacitance, or a combination of any two or more thereof.

  2. COLLEMBOLA DENSITY AND DIVERSITY ALONG A GRADIENT OF LAND- USE TYPES IN EMBU DISTRICT, EASTERN KENYA

    Directory of Open Access Journals (Sweden)

    Jamleck M. Muturi

    2009-10-01

    Full Text Available Populations of soil-dwelling Collembola were monitored on a land use gradient ranging from Natural forests to intensively cultivated land during the wet season October-November, 2007 and dry season February-March, 2008. Eight land use types (LUTs which included stands of; Eucalyptus saligna, Vitex keniensis, Pennisetum purpureum, indigenous forest, fallow fields, Cammelia sinensis, Coffea africana and Zea mays intercropped with beans were sampled for Collembola in Embu district.. Collembola population densities of (15,111 M² were collected in the study area. The Collembolan populations were lower in all sites during the dry season (5,445 M², compared to those of wet season (9,666 M². However, the highest collembolan population was observed in undisturbed indigenous forest (38,089 M² during the dry season. A total of seventeen genera in seven families were recorded. The genus Isotomiella was the most abundant followed by Cryptopygus, Folsomina and Parisotoma respectively. Results from this study revealed that abundance, diversity and species richness decreased along land use gradient with agro-based LUTs presenting an impoverished community. The level of organic matter as indicated by proportion of Carbon and Nitrogen in LUTs such as Indigenous forest, Eucalyptus forest and Cammelia sinensis seemed to influence highly collembolan assemblages. The study concludes that land use intensification (land disturbance negatively influences the abundance and species richness of soil Collembolan communities

  3. Effect of Tamsulosin in Lower Urinary Tract Symptom Patients With Metabolic Syndrome.

    Science.gov (United States)

    Yoon, Hana; Yoon, Hyun Suk; Lee, Yong Seong; Cho, Sung Tae; Han, Deok Hyun

    2016-02-01

    To investigate the efficacy of tamsulosin, a selective alpha-1 blocker, in lower urinary tract symptoms (LUTS) patients with metabolic syndrome (MS). This prospective, multicenter clinical trial included men and women (20-75 years old) with LUTS, with or without MS. Patients were categorized as MS+ or MS-, respectively, and all of them were administered tamsulosin 0.2 mg per oral once daily for 24 weeks. Patients were assessed based on the International Prostate Symptom Score, King's Health Questionnaire (KHQ), Overactive Bladder Questionnaire, uroflowmetry with postvoid residuals, and MS factors (blood pressure, waist-to-hip ratio, and serum levels of fasting blood glucose, triglyceride, and high-density lipoprotein cholesterol) at baseline and at 4, 12, and 24 weeks of treatment. Ninety-two patients were enrolled in this study (53/92 were MS- [57.6%]; 39/92 were MS+ [42.4%]). After 24 weeks of tamsulosin treatment, fasting blood glucose (P = .02) and triglyceride (P Tamsulosin was effective in both LUTS patients with and without MS. Furthermore, tamsulosin had beneficial effects on some of the factors associated with MS. Copyright © 2016 Elsevier Inc. All rights reserved.

  4. Cantilever Based Mass Sensing

    DEFF Research Database (Denmark)

    Dohn, Søren

    2007-01-01

    suitable for a portable device and to investigate the possibility of enhancing the functionality and sensitivity of cantilever based mass sensors. A readout method based on the hard contact between the cantilever and a biased electrode placed in close proximity to the cantilever is proposed. The viability...... the mass and position of a particle attached to a cantilever to the resonant frequency. It is shown theoretical possible to find the mass and position of a particle by measurements of the resonant frequency of several bending modes. In the measurements the sensitivity of the cantilever based mass sensor...... is improved when operated at higher bending modes. By measuring the resonant frequency of several bending modes both the mass and position of an attached gold bead are determined....

  5. Problem Based Learning

    DEFF Research Database (Denmark)

    de Graaff, Erik; Guerra, Aida

    Problem-Based Learning (PBL) is an innovative method to organize the learning process in such a way that the students actively engage in finding answers by themselves. During the past 40 years PBL has evolved and diversified resulting in a multitude in variations in models and practices. However......, the key principles remain the same everywhere. Graaff & Kolmos (2003) identify the main PBL principles as follows: 1. Problem orientation 2. Project organization through teams or group work 3. Participant-directed 4. Experiental learning 5. Activity-based learning 6. Interdisciplinary learning and 7...... in Engineering Education. In answer to the requests for visits the Aalborg Centre for Problem Based Learning in Engineering Science and Sustainability under the auspices of UNESCO (UCPBL) a two days programme for visitors is offered two times a year. The workshop is an introduction workshop to the Aalborg PBL...

  6. Location-based Scheduling

    DEFF Research Database (Denmark)

    Andersson, Niclas; Christensen, Knud

    the predominant scheduling method since it was introduced in the late 1950s. Over the years, CPM has proven to be a very powerful technique for planning, scheduling and controlling projects, which among other things is indicated by the development of a large number of CPM-based software applications available...... on the market. However, CPM is primarily an activity based method that takes the activity as the unit of focus and there is criticism raised, specifically in the case of construction projects, on the method for deficient management of construction work and continuous flow of resources. To seek solutions...... to the identified limitations of the CPM method, an alternative planning and scheduling methodology that includes locations is tested. Location-based Scheduling (LBS) implies a shift in focus, from primarily the activities to the flow of work through the various locations of the project, i.e. the building. LBS uses...

  7. Skull Base Anatomy.

    Science.gov (United States)

    Patel, Chirag R; Fernandez-Miranda, Juan C; Wang, Wei-Hsin; Wang, Eric W

    2016-02-01

    The anatomy of the skull base is complex with multiple neurovascular structures in a small space. Understanding all of the intricate relationships begins with understanding the anatomy of the sphenoid bone. The cavernous sinus contains the carotid artery and some of its branches; cranial nerves III, IV, VI, and V1; and transmits venous blood from multiple sources. The anterior skull base extends to the frontal sinus and is important to understand for sinus surgery and sinonasal malignancies. The clivus protects the brainstem and posterior cranial fossa. A thorough appreciation of the anatomy of these various areas allows for endoscopic endonasal approaches to the skull base. Copyright © 2016 Elsevier Inc. All rights reserved.

  8. Mutually unbiased unitary bases

    Science.gov (United States)

    Shaari, Jesni Shamsul; Nasir, Rinie N. M.; Mancini, Stefano

    2016-11-01

    We consider the notion of unitary transformations forming bases for subspaces of M (d ,C ) such that the square of the Hilbert-Schmidt inner product of matrices from the differing bases is a constant. Moving from the qubit case, we construct the maximal number of such bases for the four- and two-dimensional subspaces while proving the nonexistence of such a construction for the three-dimensional case. Extending this to higher dimensions, we commit to such a construct for the case of qutrits and provide evidence for the existence of such unitaries for prime dimensional quantum systems. Focusing on the qubit case, we show that the average fidelity for estimating any such transformation is equal to the case for estimating a completely unknown unitary from SU(2 ) . This is then followed by a quick application for such unitaries in a quantum cryptographic setup.

  9. On multivariate Wilson bases

    DEFF Research Database (Denmark)

    Bownik, Marcin; Jakobsen, Mads Sielemann; Lemvig, Jakob

    2017-01-01

    A Wilson system is a collection of finite linear combinations of time frequency shifts of a square integrable function. In this paper we give an account of the construction of bimodular Wilson bases in higher dimensions from Gabor frames of redundancy two.......A Wilson system is a collection of finite linear combinations of time frequency shifts of a square integrable function. In this paper we give an account of the construction of bimodular Wilson bases in higher dimensions from Gabor frames of redundancy two....

  10. Inkjet-based micromanufacturing

    CERN Document Server

    Korvink, Jan G; Shin, Dong-Youn; Brand, Oliver; Fedder, Gary K; Hierold, Christofer; Tabata, Osamu

    2012-01-01

    Inkjet-based Micromanufacturing Inkjet technology goes way beyond putting ink on paper: it enables simpler, faster and more reliable manufacturing processes in the fields of micro- and nanotechnology. Modern inkjet heads are per se precision instruments that deposit droplets of fluids on a variety of surfaces in programmable, repeating patterns, allowing, after suitable modifications and adaptations, the manufacturing of devices such as thin-film transistors, polymer-based displays and photovoltaic elements. Moreover, inkjet technology facilitates the large-scale production of flexible RFID tr

  11. Scenario-based strategizing

    DEFF Research Database (Denmark)

    Lehr, Thomas; Lorenz, Ullrich; Willert, Markus

    2017-01-01

    on behavioural strategy as a theoretical lens, we design a yardstick to study the impact of scenario-based strategizing. We then describe our approach, which includes developing scenarios and alternative strategies separately and supporting the strategy selection through an integrated assessment of the goal......-based efficacy and robustness. To facilitate the colla- borative strategizing in teams, we propose a matrix with robustness and efficacy as the two axes, which we call the Parmenides Matrix. We assess the impact of the novel approach by applying it in two cases, at a govern- mental agency (German Environmental...... Ministry) and a firm affected by disruptive change (Bosch, leading global supplier of technology and solutions)....

  12. Iron-based superconductivity

    CERN Document Server

    Johnson, Peter D; Yin, Wei-Guo

    2015-01-01

    This volume presents an in-depth review of experimental and theoretical studies on the newly discovered Fe-based superconductors.  Following the Introduction, which places iron-based superconductors in the context of other unconventional superconductors, the book is divided into three sections covering sample growth, experimental characterization, and theoretical understanding.  To understand the complex structure-property relationships of these materials, results from a wide range of experimental techniques and theoretical approaches are described that probe the electronic and magnetic proper

  13. Identity-based encryption

    CERN Document Server

    Chatterjee, Sanjit

    2011-01-01

    Identity Based Encryption (IBE) is a type of public key encryption and has been intensely researched in the past decade. Identity-Based Encryption summarizes the available research for IBE and the main ideas that would enable users to pursue further work in this area. This book will also cover a brief background on Elliptic Curves and Pairings, security against chosen Cipher text Attacks, standards and more. Advanced-level students in computer science and mathematics who specialize in cryptology, and the general community of researchers in the area of cryptology and data security will find Ide

  14. Video-based rendering

    CERN Document Server

    Magnor, Marcus A

    2005-01-01

    Driven by consumer-market applications that enjoy steadily increasing economic importance, graphics hardware and rendering algorithms are a central focus of computer graphics research. Video-based rendering is an approach that aims to overcome the current bottleneck in the time-consuming modeling process and has applications in areas such as computer games, special effects, and interactive TV. This book offers an in-depth introduction to video-based rendering, a rapidly developing new interdisciplinary topic employing techniques from computer graphics, computer vision, and telecommunication en

  15. Evidence-Based Development

    DEFF Research Database (Denmark)

    Hertzum, Morten; Simonsen, Jesper

    2004-01-01

    Systems development is replete with projects that represent substantial resource investments but result in systems that fail to meet users’ needs. Evidence-based development is an emerging idea intended to provide means for managing customer-vendor relationships and working systematically toward...... meeting customer needs. We are suggesting that the effects of the use of a system should play a prominent role in the contractual definition of IT projects and that contract fulfilment should be determined on the basis of evidence of these effects. Based on two ongoing studies of home-care management...

  16. Scenario-based strategizing

    DEFF Research Database (Denmark)

    Lehr, Thomas; Lorenz, Ullrich; Willert, Markus

    2017-01-01

    For over 40 years, scenarios have been promoted as a key technique for forming strategies in uncertain en- vironments. However, many challenges remain. In this article, we discuss a novel approach designed to increase the applicability of scenario-based strategizing in top management teams. Drawing...... on behavioural strategy as a theoretical lens, we design a yardstick to study the impact of scenario-based strategizing. We then describe our approach, which includes developing scenarios and alternative strategies separately and supporting the strategy selection through an integrated assessment of the goal...... Ministry) and a firm affected by disruptive change (Bosch, leading global supplier of technology and solutions)....

  17. Molecule-based magnets

    Indian Academy of Sciences (India)

    The design of molecule-based magnets has also been extended to the design of poly-functional molecular magnets, such as those exhibiting second-order optical nonlinearity, liquid crystallinity, or chirality simultaneously with long-range magnetic order. Solubility, low density and biocompatibility are attractive features of ...

  18. Project-Based Science

    Science.gov (United States)

    Krajcik, Joe

    2015-01-01

    Project-based science is an exciting way to teach science that aligns with the "Next Generation Science Standards" ("NGSS"). By focusing on core ideas along with practices and crosscutting concepts, classrooms become learning environments where teachers and students engage in science by designing and carrying out…

  19. based gel polymer electrolytes

    Indian Academy of Sciences (India)

    Bull. Mater. Sci., Vol. 29, No. 7, December 2006, pp. 673–678. © Indian Academy of Sciences. 673. Investigation on poly (vinylidene fluoride) based gel polymer electrolytes ... (Alamgir and Abraham 1993; Sukeshini et al 1996; Ra- jendran and Uma ... Yang et al 1996; Ramesh and Arof 2001) and such elec- trolytes exhibit ...

  20. Wrought cobalt- base superalloys

    Science.gov (United States)

    Klarstrom, D. L.

    1993-08-01

    Wrought cobalt-base superalloys are used extensively in gas turbine engines because of their excellent high-temperature creep and fatigue strengths and resistance to hot corrosion attack. In addition, the unique character of the oxide scales that form on some of the alloys provides outstanding resistance to high-temperature sliding wear. This article provides a review of the evolutionary development of wrought cobalt-base alloys in terms of alloy design and physical metallurgy. The topics include solid-so-lution strengthening, carbide precipitation characteristics, and attempts to introduce age hardening. The use of PHACOMP to enhance thermal stability characteristics and the incorporation of rare-earth ele-ments to improve oxidation resistance is also reviewed and discussed. The further development of cobalt-base superalloys has been severely hampered by past political events, which have accentuated the strategic vulnerability of cobalt as a base or as an alloying element. Consequently, alternative alloys have been developed that use little or no cobalt. One such alternative, Haynes® 230TMalloy, is discussed briefly.

  1. Refractive index based measurements

    DEFF Research Database (Denmark)

    2014-01-01

    In a method for performing a refractive index based measurement of a property of a fluid such as chemical composition or temperature by observing an apparent angular shift in an interference fringe pattern produced by back or forward scattering interferometry, ambiguities in the measurement caused...

  2. Refractive index based measurements

    DEFF Research Database (Denmark)

    2014-01-01

    In a method for performing a refractive index based measurement of a property of a fluid such as chemical composition or temperature, a chirp in the local spatial frequency of interference fringes of an interference pattern is reduced by mathematical manipulation of the recorded light intensity...

  3. Refractive index based measurements

    DEFF Research Database (Denmark)

    2014-01-01

    A refractive index based measurement of a property of a fluid is measured in an apparatus comprising a variable wavelength coherent light source (16), a sample chamber (12), a wavelength controller (24), a light sensor (20), a data recorder (26) and a computation apparatus (28), by - directing...

  4. Community-Based Care

    Science.gov (United States)

    ... Health A to Z › Community-Based Care Font size A A A Print Share Glossary Basic Facts & Information Other Resources Caregiving How To's Tools & Tips Latest Research Getting More Help Related Topics Assisted Living Home Care Nursing Homes Join our e-newsletter! ...

  5. Mutually unbiased bases

    Indian Academy of Sciences (India)

    Mutually unbiased bases play an important role in quantum cryptography [2] and in the optimal determination of the density operator of an ensemble [3,4]. A density operator ρ in N-dimensions depends on N2 1 real quantities. With the help of MUB's, any such density operator can be encoded, in an optimal way, in terms of ...

  6. Lunar Base Sitting

    Science.gov (United States)

    Staehle, Robert L.; Burke, James D.; Snyder, Gerald C.; Dowling, Richard; Spudis, Paul D.

    1993-01-01

    Speculation with regard to a permanent lunar base has been with us since Robert Goddard was working on the first liquid-fueled rockets in the 1920's. With the infusion of data from the Apollo Moon flights, a once speculative area of space exploration has become an exciting possibility. A Moon base is not only a very real possibility, but is probably a critical element in the continuation of our piloted space program. This article, originally drafted by World Space Foundation volunteers in conjuction with various academic and research groups, examines some of the strategies involved in selecting an appropriate site for such a lunar base. Site selection involves a number of complex variables, including raw materials for possible rocket propellant generation, hot an cold cycles, view of the sky (for astronomical considerations, among others), geological makeup of the region, and more. This article summarizes the key base siting considerations and suggests some alternatives. Availability of specific resources, including energy and certain minerals, is critical to success.

  7. Problem-based learning

    NARCIS (Netherlands)

    Loyens, Sofie; Kirschner, Paul A.; Paas, Fred

    2010-01-01

    Loyens, S. M. M., Kirschner, P. A., & Paas, F. (2011). Problem-based learning. In S. Graham (Editor-in-Chief), A. Bus, S. Major, & L. Swanson (Associate Editors), APA educational psychology handbook: Vol. 3. Application to learning and teaching (pp. 403-425). Washington, DC: American Psychological

  8. ISFET based enzyme sensors

    NARCIS (Netherlands)

    van der Schoot, Bart H.; Bergveld, Piet

    1987-01-01

    This paper reviews the results that have been reported on ISFET based enzyme sensors. The most important improvement that results from the application of ISFETs instead of glass membrane electrodes is in the method of fabrication. Problems with regard to the pH dependence of the response and the

  9. Internet based benchmarking

    DEFF Research Database (Denmark)

    Bogetoft, Peter; Nielsen, Kurt

    2005-01-01

    We discuss the design of interactive, internet based benchmarking using parametric (statistical) as well as nonparametric (DEA) models. The user receives benchmarks and improvement potentials. The user is also given the possibility to search different efficiency frontiers and hereby to explore...

  10. Financing Competency Based Programs.

    Science.gov (United States)

    Daniel, Annette

    Literature on the background, causes, and current prevalence of competency based programs is synthesized in this report. According to one analysis of the actual and probable costs of minimum competency testing, estimated costs for test development, test administration, bureaucratic structures, and remedial programs for students who cannot pass the…

  11. Diffusion Based Photon Mapping

    DEFF Research Database (Denmark)

    Schjøth, Lars; Fogh Olsen, Ole; Sporring, Jon

    2007-01-01

    . To address this problem we introduce a novel photon mapping algorithm based on nonlinear anisotropic diffusion. Our algorithm adapts according to the structure of the photon map such that smoothing occurs along edges and structures and not across. In this way we preserve the important illumination features...

  12. Graphene-based spaser

    Science.gov (United States)

    Berman, Oleg; Kezerashvili, Roman; Lozovik, Yurii

    2013-03-01

    We propose graphene-based surface plasmon amplification by stimulated emission of radiation (spaser) formed in the graphene nanoribbon located near a semiconductor quantum dot (QD). The population inversion of the two electron levels of the QD can be achieved by applying external electric current or laser pumping. If the frequency of the dipole plasmon resonance in a graphene nanoribbon comes in the resonance with the transition frequency for the QD, it is possible to excite plasmons and generate the coherent surface plasmon states in the graphene nanoribbon. Therefore, the oscillating dipole in the QD excites coherent surface plasmons in the graphene nanoribbon. By solving the system of equations for the number of coherent localized plasmons in a graphene-based spaser the optimal design, optimal width of graphene nanoribbon and optimal regime for the graphene-based spaser are found. The minimal size and minimal threshold pumping intensity for the graphene-based spaser are obtained. The advantage of using graphene for the spaser is discussed.

  13. Molecule-based magnets

    Indian Academy of Sciences (India)

    Administrator

    Being weakly coloured, unlike their opaque classical magnet 'cousins' listed above, possibilities of ..... which confers a memory effect on it. Stronger coercive fields are expected for Co. 2+. -based molecular ... of them a colour change, too, occurs reversibly and simultaneously with the change in magnetic properties at.

  14. Fundamental research data base

    Science.gov (United States)

    1983-01-01

    A fundamental research data base containing ground truth, image, and Badhwar profile feature data for 17 North Dakota, South Dakota, and Minnesota agricultural sites is described. Image data was provided for a minimum of four acquisition dates for each site and all four images were registered to one another.

  15. Base tree property

    Czech Academy of Sciences Publication Activity Database

    Balcar, B.; Doucha, Michal; Hrušák, M.

    2015-01-01

    Roč. 32, č. 1 (2015), s. 69-81 ISSN 0167-8094 R&D Projects: GA AV ČR IAA100190902 Institutional support: RVO:67985840 Keywords : forcing * Boolean algebras * base tree Subject RIV: BA - General Mathematics Impact factor: 0.614, year: 2015 http://link.springer.com/article/10.1007/s11083-013-9316-2

  16. Steel column base classification

    OpenAIRE

    Jaspart, J.P.; Wald, F.; Weynand, K.; Gresnigt, A.M.

    2008-01-01

    The influence of the rotational characteristics of the column bases on the structural frame response is discussed and specific design criteria for stiffness classification into semi-rigid and rigid joints are derived. The particular case of an industrial portal frame is then considered. Peer reviewed

  17. Web Based VRML Modelling

    NARCIS (Netherlands)

    Kiss, S.; Sarfraz, M.

    2004-01-01

    Presents a method to connect VRML (Virtual Reality Modeling Language) and Java components in a Web page using EAI (External Authoring Interface), which makes it possible to interactively generate and edit VRML meshes. The meshes used are based on regular grids, to provide an interaction and modeling

  18. Web Based VRML Modelling

    NARCIS (Netherlands)

    Kiss, S.; Banissi, E.; Khosrowshahi, F.; Sarfraz, M.; Ursyn, A.

    2001-01-01

    Presents a method to connect VRML (Virtual Reality Modeling Language) and Java components in a Web page using EAI (External Authoring Interface), which makes it possible to interactively generate and edit VRML meshes. The meshes used are based on regular grids, to provide an interaction and modeling

  19. based gel polymer electrolytes

    Indian Academy of Sciences (India)

    operating systems. With this situation, attempts have been made in poly (ethylene oxide) (PEO) based polymer electrolytes to reach an appreciable electrical conducti- vity at ambient temperature (Wright 1975; Martuscelli et al 1984). Generally solid polymer electrolytes have many advantages, viz. high ionic conductivity, ...

  20. Dictionary Based Image Segmentation

    DEFF Research Database (Denmark)

    Dahl, Anders Bjorholm; Dahl, Vedrana Andersen

    2015-01-01

    We propose a method for weakly supervised segmentation of natural images, which may contain both textured or non-textured regions. Our texture representation is based on a dictionary of image patches. To divide an image into separated regions with similar texture we use an implicit level sets...

  1. Molecule-based magnets

    Indian Academy of Sciences (India)

    Administrator

    SmCo5, Nd2Fe14B etc are all atom-based, and their preparation/processing require high temperature routes. Employing ... synthesis of molecular magnets in 1986, a large variety of them have been synthesized, which can be catego- rized on the basis of the ..... magnetic behaviour of Fe[Fe(CN)6⋅xH2O nanoparticles.

  2. REST based service composition

    DEFF Research Database (Denmark)

    Grönvall, Erik; Ingstrup, Mads; Pløger, Morten

    2011-01-01

    This paper presents an ongoing work developing and testing a Service Composition framework based upon the REST architecture named SECREST. A minimalistic approach have been favored instead of a creating a complete infrastructure. One focus has been on the system's interaction model. Indeed, an ai...

  3. Zero-Base Budgeting.

    Science.gov (United States)

    Harvey, L. James

    The concept of Zero-Base Budgeting (ZBB) is discussed in terms of its application, advantages, disadvantages, and implementation in an effective planning, management, and evaluation (PME) system. A ZBB system requires administrators to: review all programs and expenditures annually, set clear cut goals, and analyze all possible alternatives for…

  4. Zero-Base Budgeting.

    Science.gov (United States)

    Yagielski, John

    In outline form, this document presents basic information on the school district, the reasons the district considered zero-base budgeting (ZBB), the formation and membership of the advisory School Cost Analysis Team, the district's investigation of the ZBB concept, an overview of the ways the district used the ZBB process, the identification of…

  5. Internet Based Benchmarking

    OpenAIRE

    Bogetoft, Peter; Nielsen, Kurt

    2002-01-01

    We discuss the design of interactive, internet based benchmarking using parametric (statistical) as well as non-parametric (DEA) models. The user receives benchmarks and improvement potentials. The user is also given the possibility to search different efficiency frontiers and hereby to explore alternative improvement strategies. An implementation of both a parametric and a non parametric model are presented.

  6. Mutually unbiased bases

    Indian Academy of Sciences (India)

    ... we show how, by exploiting certain freedom in the Wootters–Fields construction, the task of explicitly writing down such bases can be simplified for the case when is an odd prime. In particular, we express the results entirely in terms of the character vectors of the cyclic group of order . We also analyse the connection ...

  7. Surfel Based Geometry Resonstruction

    DEFF Research Database (Denmark)

    Andersen, Vedrana; Aanæs, Henrik; Bærentzen, Jakob Andreas

    2010-01-01

    We propose a method for retrieving a piecewise smooth surface from noisy data. In data acquired by a scanning process sampled points are almost never on the discontinuities making reconstruction of surfaces with sharp features difficult. Our method is based on a Markov Random Field (MRF) formulat...

  8. Performance based fault diagnosis

    DEFF Research Database (Denmark)

    Niemann, Hans Henrik

    2002-01-01

    Different aspects of fault detection and fault isolation in closed-loop systems are considered. It is shown that using the standard setup known from feedback control, it is possible to formulate fault diagnosis problems based on a performance index in this general standard setup. It is also shown...

  9. Cotton-based nonwovens

    Science.gov (United States)

    This article is an abbreviated description of a new cotton-based nonwovens research program at the Southern Regional Research Center, which is one of the four regional research centers of the Agricultural Research Service, U.S. Department of Agriculture. Since cotton is a significant cash crop inte...

  10. Diffusion Based Photon Mapping

    DEFF Research Database (Denmark)

    Schjøth, Lars; Sporring, Jon; Fogh Olsen, Ole

    2008-01-01

    . To address this problem, we introduce a photon mapping algorithm based on nonlinear anisotropic diffusion. Our algorithm adapts according to the structure of the photon map such that smoothing occurs along edges and structures and not across. In this way, we preserve important illumination features, while...

  11. Spiritual-based Leadership

    DEFF Research Database (Denmark)

    Pruzan, Peter

    2015-01-01

    Although far from mainstream, the concept of spiritual-based leadership is emerging as an inclusive and yet highly personal approach to leadership that integrates a leader’s inner perspectives on identity, purpose, responsibility and success with her or his decisions and actions in the outer worl...

  12. Convolution based profile fitting

    International Nuclear Information System (INIS)

    Kern, A.; Coelho, A.A.; Cheary, R.W.

    2002-01-01

    Full text: In convolution based profile fitting, profiles are generated by convoluting functions together to form the observed profile shape. For a convolution of 'n' functions this process can be written as, Y(2θ)=F 1 (2θ)x F 2 (2θ)x... x F i (2θ)x....xF n (2θ). In powder diffractometry the functions F i (2θ) can be interpreted as the aberration functions of the diffractometer, but in general any combination of appropriate functions for F i (2θ) may be used in this context. Most direct convolution fitting methods are restricted to combinations of F i (2θ) that can be convoluted analytically (e.g. GSAS) such as Lorentzians, Gaussians, the hat (impulse) function and the exponential function. However, software such as TOPAS is now available that can accurately convolute and refine a wide variety of profile shapes numerically, including user defined profiles, without the need to convolute analytically. Some of the most important advantages of modern convolution based profile fitting are: 1) virtually any peak shape and angle dependence can normally be described using minimal profile parameters in laboratory and synchrotron X-ray data as well as in CW and TOF neutron data. This is possible because numerical convolution and numerical differentiation is used within the refinement procedure so that a wide range of functions can easily be incorporated into the convolution equation; 2) it can use physically based diffractometer models by convoluting the instrument aberration functions. This can be done for most laboratory based X-ray powder diffractometer configurations including conventional divergent beam instruments, parallel beam instruments, and diffractometers used for asymmetric diffraction. It can also accommodate various optical elements (e.g. multilayers and monochromators) and detector systems (e.g. point and position sensitive detectors) and has already been applied to neutron powder diffraction systems (e.g. ANSTO) as well as synchrotron based

  13. GPM SLH: Convective Latent Heating Estimated with GPM Dual-frequency Precipitation Radar Data

    Science.gov (United States)

    Takayabu, Y. N.; Hamada, A.; Yokoyama, C.; Ikuta, Y.; Shige, S.; Yamaji, M.; Kubota, T.

    2017-12-01

    Three dimensional diabatic heating distribution plays essential roles to determine large-scale circulation, as well as to generate mesoscale circulation associated with tropical convection (e.g. Hartmann et al., 1984; Houze et al. 1982). For mid-latitude systems also, diabatic heating contributes to generate PVs resulting in, for example, explosive intensifications of mid-lattitude storms (Boettcher and Wernli, 2011). Previously, with TRMM PR data, we developed a Spectral Latent Heating algorithm (SLH; Shige et al. 2004, etc.) for 36N-36S region. It was based on the spectral LH tables produced from a simulation utilizing the Goddard Cloud Ensemble Model forced with the TOGA-COARE data. With GPM DPR, the observation region is extended to 65N-65S. Here, we introduce a new version of SLH algorithm which is applicable also to the mid-latitude precipitation. A new global GPM SLH ver.5 product is released as one of NASA/JAXA GPM standard products on July 11, 2017. For GPM SLH mid-latitude algorithm, we employ the Japan Meteorological Agency (JMA)'s high resolution (horizontally 2km) Local Forecast Model (LFM) to construct the LUTs. With collaborations of JMA's forecast group, forecast data for 8 extratropical cyclone cases are collected and utilized. For mid-latitude precipitation, we have to deal with large temperature gradients and complex relationship between the freezing level and cloud base levels. LUTs are constructed for LH, Q1-QR, and Q2 (Yanai et al. 1973), for six different precipitation types: Convective and shallow stratiform LUTs are made against precipitation top heights. For deep stratiform and other precipitation, LUTs are made against maximum precipitation to handle the unknown cloud-bases. Finally, three-dimensional convective latent heating is retrieved, utilizing the LUTs and precipitation profile data from GPM 2AKu. We can confirm that retrieved LH looks very similar to simulated LH, for a consistency check. We also confirm a good continuities of

  14. Spintronics-based computing

    CERN Document Server

    Prenat, Guillaume

    2015-01-01

    This book provides a comprehensive introduction to spintronics-based computing for the next generation of ultra-low power/highly reliable logic, which is widely considered a promising candidate to replace conventional, pure CMOS-based logic. It will cover aspects from device to system-level, including magnetic memory cells, device modeling, hybrid circuit structure, design methodology, CAD tools, and technological integration methods. This book is accessible to a variety of readers and little or no background in magnetism and spin electronics are required to understand its content.  The multidisciplinary team of expert authors from circuits, devices, computer architecture, CAD and system design reveal to readers the potential of spintronics nanodevices to reduce power consumption, improve reliability and enable new functionality.  .

  15. PACS Data Base Design

    Science.gov (United States)

    Zeleznik, Michael P.; Maguire, G. Q.; Baxter, B.

    1983-05-01

    A PACS database must manage three different types of data; structured data in the form of patient/exam identification information, and unstructured data in the form of text and images. Queries based on the content of text documents as well as the content of images must be suported, in addition to those based on standard, well structured keys such as name, age and sex. We model the PACS database as three logically distinct databases, each supporting one of these data types, with mapping structures relating all three. Several design issues which have a bearing, both on these models and on physical implemtations, are discussed. Because image database systems are the least understood at this time, most of the paper focusses on the them. We briefly discuss current trends in structured and text databases, without discussing commercial systems, and then present some current methods of implementing image database systems.

  16. Concrete lunar base investigation

    Science.gov (United States)

    Lin, T. D.; Senseny, Jonathan A.; Arp, Larry D.; Lindbergh, Charles

    1992-01-01

    This paper presents results of structural analyses and a preliminary design of a precast, prestressed concrete lunar base subjected to 1-atm internal pressure. The proposed infrastructure measures 120 ft in diameter and 72 ft in height, providing 33,000 sq ft of work area for scientific and industrial operations. Three loading conditions were considered in the design (1) during construction, (2) under pressurization, and (3) during an air-leak scenario. A floating foundation, capable of rigid body rotation and translation as the lunar soil beneath it yields, was developed to support the infrastructure and to ensure the airtightness of the system. Results reveal that it is feasible to use precast, prestressed concrete for construction of large lunar bases on the Moon.

  17. Technology based Education System

    DEFF Research Database (Denmark)

    Kant Hiran, Kamal; Doshi, Ruchi; Henten, Anders

    2016-01-01

    Abstract - Education plays a very important role for the development of the country. Education has multiple dimensions from schooling to higher education and research. In all these domains, there is invariably a need for technology based teaching and learning tools are highly demanded in the acad......Abstract - Education plays a very important role for the development of the country. Education has multiple dimensions from schooling to higher education and research. In all these domains, there is invariably a need for technology based teaching and learning tools are highly demanded...... and operational data that is used within a university for daily routine work. This paper presents a hybrid cloud computing model for higher education institutions to share intellectual data. Moreover, it proposes, the strategies for the implementation of the cloud computing in the academic institutions. Keywords...

  18. Animation-based Sketching

    DEFF Research Database (Denmark)

    Vistisen, Peter

    of contributions. In the produced work, I expand upon animation as a sketching approach to communicate, and explore interaction and user experience design concepts that are hard to grasp via traditional means of sketching. I propose that the sequential, temporal, material and narrative qualities of animation may...... experiments has been carried out, applying animation-based sketching in various contexts and at varying points in the design process. In the studies, I evaluate the viability of the approach, the practical integration into the design process, and map how consensus between stakeholders in design can...... be established through animation -based sketches. Thus, the scope of this project is practice-inclined, towards qualifying animation as an approach for design sketching in practice....

  19. Sparse approximation with bases

    CERN Document Server

    2015-01-01

    This book systematically presents recent fundamental results on greedy approximation with respect to bases. Motivated by numerous applications, the last decade has seen great successes in studying nonlinear sparse approximation. Recent findings have established that greedy-type algorithms are suitable methods of nonlinear approximation in both sparse approximation with respect to bases and sparse approximation with respect to redundant systems. These insights, combined with some previous fundamental results, form the basis for constructing the theory of greedy approximation. Taking into account the theoretical and practical demand for this kind of theory, the book systematically elaborates a theoretical framework for greedy approximation and its applications.  The book addresses the needs of researchers working in numerical mathematics, harmonic analysis, and functional analysis. It quickly takes the reader from classical results to the latest frontier, but is written at the level of a graduate course and do...

  20. Maintaining Relationship Based Procurement

    Directory of Open Access Journals (Sweden)

    Peter Davis

    2012-11-01

    Full Text Available Alliance and relationship projects are increasingin number and represent a large pool of work. Tobe successful relationship style contracts dependon soft-dollar factors, particularly the participants'ability to work together within an agreedframework, generally they are not based on lowbid tendering. Participants should be prepared todo business in an open environment based ontrust and mutually agreed governance. Theresearch evaluates relationship maintenance inthe implementation phase of constructionalliances - a particular derivative of relationshipstyle contracts. To determine the factors thatcontribute to relationship maintenance forty-nineexperienced Australian alliance projectmanagers were interviewed. The main findingswere; the development of relationships early inthe project form building blocks of success fromwhich relationships are maintained and projectvalue added; quality facilitation plays animportant part in relationship maintenance and ahybrid organisation created as a result of alliancedevelopment overcomes destructiveorganisational boundaries. Relationshipmaintenance is integral to alliance project controland failure to formalise it and pay attention toprocess and past outcomes will undermine analliance project's potential for success.

  1. Fusion safety data base

    International Nuclear Information System (INIS)

    Laats, E.T.; Hardy, H.A.

    1983-01-01

    The purpose of this Fusion Safety Data Base Program is to provide a repository of data for the design and development of safe commercial fusion reactors. The program is sponsored by the United States Department of Energy (DOE), Office of Fusion Energy. The function of the program is to collect, examine, permanently store, and make available the safety data to the entire US magnetic-fusion energy community. The sources of data will include domestic and foreign fusion reactor safety-related research programs. Any participant in the DOE Program may use the Data Base Program from his terminal through user friendly dialog and can view the contents in the form of text, tables, graphs, or system diagrams

  2. Conducting Polymer Based Nanobiosensors

    Directory of Open Access Journals (Sweden)

    Chul Soon Park

    2016-06-01

    Full Text Available In recent years, conducting polymer (CP nanomaterials have been used in a variety of fields, such as in energy, environmental, and biomedical applications, owing to their outstanding chemical and physical properties compared to conventional metal materials. In particular, nanobiosensors based on CP nanomaterials exhibit excellent performance sensing target molecules. The performance of CP nanobiosensors varies based on their size, shape, conductivity, and morphology, among other characteristics. Therefore, in this review, we provide an overview of the techniques commonly used to fabricate novel CP nanomaterials and their biosensor applications, including aptasensors, field-effect transistor (FET biosensors, human sense mimicking biosensors, and immunoassays. We also discuss prospects for state-of-the-art nanobiosensors using CP nanomaterials by focusing on strategies to overcome the current limitations.

  3. Knowledge based maintenance

    Energy Technology Data Exchange (ETDEWEB)

    Sturm, A. [Hamburgische Electacitaets-Werke AG Hamburg (Germany)

    1997-12-31

    The establishment of maintenance strategies is of crucial significance for the reliability of a plant and the economic efficiency of maintenance measures. Knowledge about the condition of components and plants from the technical and business management point of view therefore becomes one of the fundamental questions and the key to efficient management and maintenance. A new way to determine the maintenance strategy can be called: Knowledge Based Maintenance. A simple method for determining strategies while taking the technical condition of the components of the production process into account to the greatest possible degree which can be shown. A software with an algorithm for Knowledge Based Maintenance leads the user during complex work to the determination of maintenance strategies for this complex plant components. (orig.)

  4. Arduino based laser control

    OpenAIRE

    Bernal Muñoz, Ferran

    2015-01-01

    ARDUINO is a vey usefull platform for prototypes. In this project ARDUINO will be used for controling a Semiconductor Tuneable Laser. [ANGLÈS] Diode laser for communications control based on an Arduino board. Temperature control implementation. Software and hardware protection for the laser implementation. [CASTELLÀ] Control de un láser de comunicaciones ópticas desde el ordenador utilizando una placa Arduino. Implementación de un control de temperatura y protección software y hardware ...

  5. Design bases - Concrete structures

    International Nuclear Information System (INIS)

    Diaz-Llanos Ros, M.

    1993-01-01

    The most suitable title for Section 2 is 'Design Bases', which covers not only calculation but also the following areas: - Structural design concepts. - Project criteria. - Material specifications. These concepts are developed in more detail in the following sections. The numbering in this document is neither complete nor hierarchical since, for easier cross referencing, it corresponds to the paragraphs of Eurocode 2 Part 1 (hereinafter 'EUR-2') which are commented on. (author)

  6. Boid Based Timetable Generation

    Science.gov (United States)

    Fulmański, Piotr

    2008-09-01

    The general timetabling problem consists of scheduling a number of events into a finite number of periods so that no individual entity is required to attend two or more events simultaneously. In most cases there will also be restrictions on the amount of resources, time etc. In this document we try to investigate a new method of timetable generation based not on popular evolutionary approach but on boids concept.

  7. Copper Pyrimidine based MOFs

    Indian Academy of Sciences (India)

    Cl..Cu.. interactions but restricted ..Cu..N N..Cu interacations. Supramolecular isomers of Br and I are reported for the first time in this paper. [Cu2I(pdz)X2]. Figure S18. Self assembly of the simultaneous presence of tecton {Cu(sol)3X} and {Cu(pdz)(sol)2X} result in [Cu2I(pdz)X2]. 1. Table S3. Copper Pyrimidine based MOFs ...

  8. Air Force Smart Bases

    Science.gov (United States)

    2017-10-19

    and mobility for generating combat power while maintaining cybersecurity and accruing the benefits of technology in their lives . Figure 2...Designers ideate 100’s if not 1000’s of ways IoT and smart base technologies may improve the lives of Airmen. Figure 3: A conceptual AF mobile...innovation that unlock mission capabilities for Airmen. Both use cases are important (and can be integrated), but the functionals must continue to remind

  9. Microbead agglutination based assays

    KAUST Repository

    Kodzius, Rimantas

    2013-01-21

    We report a simple and rapid room temperature assay for point-of-care (POC) testing that is based on specific agglutination. Agglutination tests are based on aggregation of microbeads in the presence of a specific analyte thus enabling the macroscopic observation. Such tests are most often used to explore antibody-antigen reactions. Agglutination has been used for protein assays using a biotin/streptavidin system as well as a hybridization based assay. The agglutination systems are prone to selftermination of the linking analyte, prone to active site saturation and loss of agglomeration at high analyte concentrations. We investigated the molecular target/ligand interaction, explaining the common agglutination problems related to analyte self-termination, linkage of the analyte to the same bead instead of different microbeads. We classified the agglutination process into three kinds of assays: a two- component assay, a three-component assay and a stepped three- component assay. Although we compared these three kinds of assays for recognizing DNA and protein molecules, the assay can be used for virtually any molecule, including ions and metabolites. In total, the optimized assay permits detecting analytes with high sensitivity in a short time, 5 min, at room temperature. Such a system is appropriate for POC testing.

  10. As bases do petismo

    Directory of Open Access Journals (Sweden)

    David Samuels

    2004-10-01

    Full Text Available A partir dos dados do ESEB de 2002 o autor realiza um estudo das bases eleitorais do PT e de hipóteses sobre a natureza do petismo. Através de técnicas estatísticas multivariadas, são testadas relações do petismo com variáveis demográficas, socioeconômicas e variáveis relativas a questões políticas específicas. Os resultados apontam que apenas a escolaridade tem uma associação específica com o petismo, com implicações para o seu comportamento sócio-político.Based on the results of the 2002 Brazilian Electoral Study, the author analyses the electoral bases of the Worker´s Party and the factors associated with the "petismo". The relationships between the "petismo"and the socioeconomic, demographic and political variables are tested using multivariate analysis. The results indicate that the only "social category"associated with "petismo"is level of education, and it has clear implications to their social and political behavior.

  11. Knowledge-based utility

    International Nuclear Information System (INIS)

    Chwalowski, M.

    1997-01-01

    This presentation provides industry examples of successful marketing practices by companies facing deregulation and competition. The common thread through the examples is that long term survival of today's utility structure is dependent on the strategic role of knowledge. As opposed to regulated monopolies which usually own huge physical assets and have very little intelligence about their customers, unregulated enterprises tend to be knowledge-based, characterized by higher market value than book value. A knowledge-based enterprise gathers data, creates information and develops knowledge by leveraging it as a competitive weapon. It institutionalizes human knowledge as a corporate asset for use over and over again by the use of databases, computer networks, patents, billing, collection and customer services (BCCS), branded interfaces and management capabilities. Activities to become knowledge-based such as replacing inventory/fixed assets with information about material usage to reduce expenditure and achieve more efficient operations, and by focusing on integration and value-adding delivery capabilities, were reviewed

  12. Evidence-based policy

    DEFF Research Database (Denmark)

    Vohnsen, Nina Holm

    2013-01-01

    A current ambition in welfare states as diverse as Denmark, the UK, and in the USA is to base political decision making on rigorous research (Cartwright et al 2009; Mulgan 2009; Bason 2010). Sound as this might seem the ambition has nevertheless been problematized by both policy-makers and the re......A current ambition in welfare states as diverse as Denmark, the UK, and in the USA is to base political decision making on rigorous research (Cartwright et al 2009; Mulgan 2009; Bason 2010). Sound as this might seem the ambition has nevertheless been problematized by both policy......-makers and the research community (e.g. Boden & Epstein 2006; House of Commons 2006; Cartwright et al 2009; Rod 2010; Vohnsen 2011). This article intends to draw out some general pitfalls in the curious meeting of science and politics by focusing on a particular attempt to make evidence-based legislation in Denmark (for...... a full account, see Vohnsen 2011). These insights will be relevant for the anthropological researcher of legislative processes who wishes to move beyond a merely discursive approach to the study of policy and politics....

  13. Botulinum Toxin A Injection to the Bladder Neck and Urethra for Medically Refractory Lower Urinary Tract Symptoms in Men Without Prostatic Obstruction

    Directory of Open Access Journals (Sweden)

    Jing-Liang Chen

    2009-12-01

    Conclusion: Bladder neck and urethral BoNT-A injections improved LUTS and increased Qmax in men with a small prostate. Our findings suggest that bladder neck and urethral dysfunction may play a role in LUTS in men without BPH.

  14. Sildenafil citrate in combination with tamsulosin versus tamsulosin monotherapy for management of male lower urinary tract symptoms due to benign prostatic hyperplasia: A randomised, double-blind, placebo-controlled trial

    Directory of Open Access Journals (Sweden)

    Amr Fawzi

    2017-03-01

    Conclusion: Sildenafil citrate combined with tamsulosin improved LUTS, erectile function, and patient QoL more than tamsulosin monotherapy with the merit of a comparable safety profile in patients with LUTS/BPH.

  15. Effect of luteolin on the levels of glycoproteins during azoxymethane-induced colon carcinogenesis in mice.

    Science.gov (United States)

    Pandurangan, Ashok Kumar; Dharmalingam, Prakash; Ananda Sadagopan, Suresh Kumar; Ganapasam, Sudhandiran

    2012-01-01

    Luteolin (LUT), a bioflavonoid has been used as a chemopreventive agent world-wide against chemically induced cancer. Hence we designed an experiment to assess chemopreventive action of LUT on lipid peroxidation (LPO) and glycoconjugates in azoxymethane (AOM)-induced colon carcinogenesis. Colon cancer was induced by 15 mg/body kg. body weight of AOM and administration of LUT (at the dose of 1.2 mg/kg. body weight) was till end of the study. Analysis of lipid peroxidative end products such as protein carbonyl (PC), malonadehyde (MDA) and conjucated dienes (CD) demonstrated significant increase in in AOM-induced animals with reduction by LUT (pLUT l(pLUT decreased the incidence of MDF. These results suggest that LUT alters the expression of glycoconjugates and suppress colon cancer. Hence, we speculate that LUT can be used as a chemopreventive agent to treat colon cancer.

  16. Nanoplatform-based molecular imaging

    National Research Council Canada - National Science Library

    Chen, Xiaoyuan

    2011-01-01

    "Nanoplathform-Based Molecular Imaging provides rationale for using nanoparticle-based probes for molecular imaging, then discusses general strategies for this underutilized, yet promising, technology...

  17. Speedup of Color Palette Indexing in Self-Organization of Kohonen Feature Map

    Science.gov (United States)

    Chung, Kuo-Liang; Wang, Jyun-Pin; Cheng, Ming-Shao; Huang, Yong-Huai

    Based on the self-organization of Kohonen feature map (SOFM), recently, Pei et al. presented an efficient color palette indexing method to construct a color table for compression. Taking their palette indexing method as a representative, this paper presents two new strategies, the pruning-based search strategy and the lookup table (LUT)-based update strategy, to speed up the learning process in the SOFM. Based on four typical testing images, experimental results demonstrate that our proposed two strategies have 35% execution-time improvement ratio in average. In fact, our proposed two strategies could be used to speed up the other SOFM-based learning processes in different applications.

  18. Comparison of sequence-based and structure-based phylogenetic ...

    Indian Academy of Sciences (India)

    Prakash

    Sequence-based and structure-based phylogeny. 85. J. Biosci. 32(1), January 2007 dispersion is independent of phylogenetic tree construction algorithms. 3. ... two groups only. 3.1 Families with high correlation between sequence- based and structure-based phylogenetic trees. There are 27 families with considerably high ...

  19. Cost-effectiveness analysis of six therapies for the treatment of lower urinary tract symptoms due to benign prostatic hyperplasia

    Science.gov (United States)

    Ulchaker, James C; Martinson, Melissa S

    2018-01-01

    Objective To conduct a cost-effectiveness analysis from payers’ perspectives of six treatments for lower urinary tract symptoms (LUTS) associated with benign prostatic hyperplasia (BPH) and to examine positioning of these modalities in the marketplace for the best use of health care funds and quality-of-life benefits for patients. Methods The economic analysis was conducted with a Markov model to compare combination prescription drug therapy (ComboRx), minimally invasive therapies (MITs) including convective radiofrequency (RF) water vapor thermal therapy (Rezūm®), conductive RF thermal therapy (Prostiva®), and prostatic urethral lift (UroLift®), and invasive surgical procedures including photovaporization of the prostate (Greenlight® PVP) and transurethral resection of the prostate (TURP). Effects assessed with International Prostate Symptom Score, adverse events, and re-treatment rates were estimated from medical literature; treatments effects were modeled using a common baseline score. Starting with each therapy, patients’ transitions to more intensive therapies when symptoms returned were simulated in 6-month cycles over 2 years. Incremental cost-effectiveness ratios (ICERs) were calculated for pairs of treatments; uncertainty in ICERs was estimated with probabilistic sensitivity analyses. Results ComboRx was least effective and provided one-third of the symptom relief achieved with MITs. UroLift was similar in effectiveness to Prostiva and Rezūm but costs more than twice as much. The cheaper MITs were ~$900 more expensive than the cost of ComboRx generic drugs over 2 years. TURP and PVP provided slightly greater relief of LUTS than MITs at approximately twice the cost over 2 years; typically, they are reserved for treatment of more severe LUTS. Conclusion The analysis evaluated the costs and symptom relief of six treatment options in the continuum of care from a common baseline of LUTS severity. Identification of treatments for LUTS/BPH that

  20. DOM Based XSS Detecting Method Based on Phantomjs

    Science.gov (United States)

    Dong, Ri-Zhan; Ling, Jie; Liu, Yi

    Because malicious code does not appear in html source code, DOM based XSS cannot be detected by traditional methods. By analyzing the causes of DOM based XSS, this paper proposes a detection method of DOM based XSS based on phantomjs. This paper uses function hijacking to detect dangerous operation and achieves a prototype system. Comparing with existing tools shows that the system improves the detection rate and the method is effective to detect DOM based XSS.

  1. Evidence-based guidelines

    DEFF Research Database (Denmark)

    Rovira, Àlex; Wattjes, Mike P; Tintoré, Mar

    2015-01-01

    The clinical use of MRI in patients with multiple sclerosis (MS) has advanced markedly over the past few years. Technical improvements and continuously emerging data from clinical trials and observational studies have contributed to the enhanced performance of this tool for achieving a prompt...... diagnosis in patients with MS. The aim of this article is to provide guidelines for the implementation of MRI of the brain and spinal cord in the diagnosis of patients who are suspected of having MS. These guidelines are based on an extensive review of the recent literature, as well as on the personal...... of MRI in clinical practice for the diagnosis of MS....

  2. Vision-based interaction

    CERN Document Server

    Turk, Matthew

    2013-01-01

    In its early years, the field of computer vision was largely motivated by researchers seeking computational models of biological vision and solutions to practical problems in manufacturing, defense, and medicine. For the past two decades or so, there has been an increasing interest in computer vision as an input modality in the context of human-computer interaction. Such vision-based interaction can endow interactive systems with visual capabilities similar to those important to human-human interaction, in order to perceive non-verbal cues and incorporate this information in applications such

  3. Polymerization Using Phosphazene Bases

    KAUST Repository

    Zhao, Junpeng

    2015-09-01

    In the recent rise of metal-free polymerization techniques, organic phosphazene superbases have shown their remarkable strength as promoter/catalyst for the anionic polymerization of various types of monomers. Generally, the complexation of phosphazene base with the counterion (proton or lithium cation) significantly improves the nucleophilicity of the initiator/chain end resulting in highly enhanced polymerization rates, as compared with conventional metalbased initiating systems. In this chapter, the general features of phosphazenepromoted/catalyzed polymerizations and the applications in macromolecular engineering (synthesis of functionalized polymers, block copolymers, and macromolecular architectures) are discussed with challenges and perspectives being pointed out.

  4. Oil based mud discharges

    International Nuclear Information System (INIS)

    Tiesma, R.

    1996-01-01

    The intensive use of oil based muds by the offshore oil and gas industry during the 1980s has caused considerable contamination around drilling sites. A recent investigation on the Norwegian continental shelf indicates that the situation is much worse than previously thought. This material suggests that oil pollution of this kind could be damaging the North Sea's endangered fish stocks, including cod, haddock and plaice. The amount of oil discharged in the UK sector is many times higher than in the other sectors, suggesting that the problem there may be even more serious. The amount discharged in the Dutch and Norwegian sectors are comparable. (author)

  5. Agent-Based Optimization

    CERN Document Server

    Jędrzejowicz, Piotr; Kacprzyk, Janusz

    2013-01-01

    This volume presents a collection of original research works by leading specialists focusing on novel and promising approaches in which the multi-agent system paradigm is used to support, enhance or replace traditional approaches to solving difficult optimization problems. The editors have invited several well-known specialists to present their solutions, tools, and models falling under the common denominator of the agent-based optimization. The book consists of eight chapters covering examples of application of the multi-agent paradigm and respective customized tools to solve  difficult optimization problems arising in different areas such as machine learning, scheduling, transportation and, more generally, distributed and cooperative problem solving.

  6. Teradata data base computer

    Energy Technology Data Exchange (ETDEWEB)

    1984-04-01

    To meet the growing demand for information management of large databases, Teradata Corporation has introduced the DBC/1012 data base computer, an IBM plug-compatible system that can handle data volumes up to a trillion bytes. Teradata estimates the DBC/1012 to be one-third the cost of an all-software relational system on a general purpose mainframe. Cost effectiveness, as well as fault tolerance, is achieved by a parallel architecture which processes data asynchronously using multiple independent microprocessors. Another cost saving results from the resources on the host mainframe that become available once the mainframe is relieved of the burden of maintaining the database.

  7. Problem Based Game Design

    DEFF Research Database (Denmark)

    Reng, Lars; Schoenau-Fog, Henrik

    2011-01-01

    At Aalborg University’s department of Medialogy, we are utilizing the Problem Based Learning method to encourage students to solve game design problems by pushing the boundaries and designing innovative games. This paper is concerned with describing this method, how students employ it in various...... projects and how they learn to analyse, design, and develop for innovation by using it. We will present various cases to exemplify the approach and focus on how the method engages students and aspires for innovation in digital entertainment and games....

  8. LIGHTWEIGHT CONCRETE BASED GRANSHLAK

    Directory of Open Access Journals (Sweden)

    NETESA M. I.

    2016-02-01

    Full Text Available Raising of problem. Concrete advisable to obtain a low strength with local secondary resources for recycling and reduce the environmental burden on the environment. But it is important to design such concrete compositions with a reduced flow of cement. It is known that the coefficient of efficiency of use of cement in the concrete of the heavy and B10 is less than about 0.5, which is almost two times smaller than in class B15 concrete and above. Even lower coefficient of efficiency in light concrete cement low strength. Therefore, it is important to find patterns determining the composition of lightweight concrete based on local-products industry with more efficient use of cement in them. Purpose.. Based on the analysis of earlier research results, including with the use of methods of mathematical planning of experiments to determine the concrete contents, which can provide the requirements for the underlying layers of the floor, the compressive strength of which should correspond to the class B5. It is important to provide the required strength at minimum flow of the cement, which is the most expensive and energy-intensive part of concrete. Conclusion. Analysis of the test results of control samples of concrete in 28-day-old, the following laws. The required tensile strength of concrete compressive strength of 7.0 MPa can be obtained in the test range when used in formulations as a filler as the Dnieper hydroelectric power station fly ash and tailings Krivoy Rog iron ore YuGOK. To ensure providing the required characteristic strength of the concrete in the underlying layers of the floor is advisable to use a nominal composition per cubic meter of concrete: cement 160 kg granshlaka Plant named after Petrovsky, 675 kg of fly ash Dnieper HPP 390 kg, 400 kg of sand, 230 liters of water. Thus, while ensuring rational grain composition components can obtain the desired strength lightweight concrete based granshlaka plant Petrovsky, using as fillers

  9. Web Based Customized Design

    OpenAIRE

    Moi, Morten Benestad

    2013-01-01

    This thesis studies the methods needed to create a web based application to remotely customize a CAD model. This includes customizing a CAD model by using a graphical user interface to be able to remotely control the inputs to- and outputs from the model in NX, and to get the result sent back to the user. Using CAD systems such as NX requires intensive training, is often a slow process and gives a lot of room for errors. An intuitive, simple user interface will eliminate the need for CAD trai...

  10. Sustainability Base Construction Update

    Science.gov (United States)

    Mewhinney, Michael

    2012-01-01

    Construction of the new Sustainability Base Collaborative support facility, expected to become the highest performing building in the federal government continues at NASA's Ames Research Center, Moffet Field, Calif. The new building is designed to achieve a platinum rating under the leadership in Energy and Environment Design (LEED) new construction standards for environmentally sustainable construction developed by the U. S. Green Building Council, Washington, D. C. When completed by the end of 2011, the $20.6 million building will feature near zero net energy consumption, use 90 percent less potable water than conventionally build buildings of equivalent size, and will result in reduced building maintenance costs.

  11. Cellular based cancer vaccines

    DEFF Research Database (Denmark)

    Hansen, M; Met, Ö; Svane, I M

    2012-01-01

    Cancer vaccines designed to re-calibrate the existing host-tumour interaction, tipping the balance from tumor acceptance towards tumor control holds huge potential to complement traditional cancer therapies. In general, limited success has been achieved with vaccines composed of tumor...... to transiently affect in vitro migration via autocrine receptor-mediated endocytosis of CCR7. In the current review, we discuss optimal design of DC maturation focused on pre-clinical as well as clinical results from standard and polarized dendritic cell based cancer vaccines....

  12. Pitch Based Sound Classification

    DEFF Research Database (Denmark)

    Nielsen, Andreas Brinch; Hansen, Lars Kai; Kjems, U

    2006-01-01

    A sound classification model is presented that can classify signals into music, noise and speech. The model extracts the pitch of the signal using the harmonic product spectrum. Based on the pitch estimate and a pitch error measure, features are created and used in a probabilistic model with soft......-max output function. Both linear and quadratic inputs are used. The model is trained on 2 hours of sound and tested on publicly available data. A test classification error below 0.05 with 1 s classification windows is achieved. Further more it is shown that linear input performs as well as a quadratic...

  13. Accelerator-based BNCT.

    Science.gov (United States)

    Kreiner, A J; Baldo, M; Bergueiro, J R; Cartelli, D; Castell, W; Thatar Vento, V; Gomez Asoia, J; Mercuri, D; Padulo, J; Suarez Sandin, J C; Erhardt, J; Kesque, J M; Valda, A A; Debray, M E; Somacal, H R; Igarzabal, M; Minsky, D M; Herrera, M S; Capoulat, M E; Gonzalez, S J; del Grosso, M F; Gagetti, L; Suarez Anzorena, M; Gun, M; Carranza, O

    2014-06-01

    The activity in accelerator development for accelerator-based BNCT (AB-BNCT) both worldwide and in Argentina is described. Projects in Russia, UK, Italy, Japan, Israel, and Argentina to develop AB-BNCT around different types of accelerators are briefly presented. In particular, the present status and recent progress of the Argentine project will be reviewed. The topics will cover: intense ion sources, accelerator tubes, transport of intense beams, beam diagnostics, the (9)Be(d,n) reaction as a possible neutron source, Beam Shaping Assemblies (BSA), a treatment room, and treatment planning in realistic cases. © 2013 Elsevier Ltd. All rights reserved.

  14. Situation based housing

    DEFF Research Database (Denmark)

    Duelund Mortensen, Peder; Welling, Helen; Wiell Nordberg, Lene

    2007-01-01

    of approaches to these goals. This working paper reviews not only a selection of new housing types, but also dwellings from the past, which each contain an aspect of changeability. Our study is based on information from users in the selected housing schemes, gathered from questionnaires, information about...... for living. The suitable condition consists of the dwelling's ability for physical displacement, spatial changes that can suit changing life styles. The situational condition is the not defined, the unfinished and the transitory, which continuously challenges the imagination and calls for the experiment. Our...

  15. Knowledge based Entrepreneurship

    DEFF Research Database (Denmark)

    Heebøll, John

    This book is dedicated enterprising people with a technical or a scientific background who consider commercializing ideas and inventions within their field of expertise via a new business activity or a new company. It aims at distilling experiences from many successful and not so successful start......-up ventures from the Technical University of Denmark, 1988 – 2008 into practical, portable knowledge that can be used by future knowledge-based entrepreneurs to set up new companies efficiently or to stay away from it; to do what’s needed and avoid the pitfalls....

  16. Problem Based Learning Online

    DEFF Research Database (Denmark)

    Kolbæk, Ditte

    2018-01-01

    “How do two online learning designs affect student engagement in the PBL online modules?” The empirical data were collected and analyzed using a netnographic approach. The study finds that concepts such as self-directed learning and active involvement may be perceived very differently from the students......Problem- and project- based learning (PBL) was originally developed for collaboration between physically present students and teachers, but political decisions at many universities also require that collaboration, dialogues, and other PBL activities take place online. Teachers design learning...

  17. Microlaser-based displays

    Science.gov (United States)

    Bergstedt, Robert; Fink, Charles G.; Flint, Graham W.; Hargis, David E.; Peppler, Philipp W.

    1997-07-01

    Laser Power Corporation has developed a new type of projection display, based upon microlaser technology and a novel scan architecture, which provides the foundation for bright, extremely high resolution images. A review of projection technologies is presented along with the limitations of each and the difficulties they experience in trying to generate high resolution imagery. The design of the microlaser based projector is discussed along with the advantage of this technology. High power red, green, and blue microlasers have been designed and developed specifically for use in projection displays. These sources, in combination with high resolution, high contrast modulator, produce a 24 bit color gamut, capable of supporting the full range of real world colors. The new scan architecture, which reduces the modulation rate and scan speeds required, is described. This scan architecture, along with the inherent brightness of the laser provides the fundamentals necessary to produce a 5120 by 4096 resolution display. The brightness and color uniformity of the display is excellent, allowing for tiling of the displays with far fewer artifacts than those in a traditionally tiled display. Applications for the display include simulators, command and control centers, and electronic cinema.

  18. SPACE BASED INTERCEPTOR SCALING

    Energy Technology Data Exchange (ETDEWEB)

    G. CANAVAN

    2001-02-01

    Space Based Interceptor (SBI) have ranges that are adequate to address rogue ICBMs. They are not overly sensitive to 30-60 s delay times. Current technologies would support boost phase intercept with about 150 interceptors. Higher acceleration and velocity could reduce than number by about a factor of 3 at the cost of heavier and more expensive Kinetic Kill Vehicles (KKVs). 6g SBI would reduce optimal constellation costs by about 35%; 8g SBI would reduce them another 20%. Interceptor ranges fall rapidly with theater missile range. Constellations increase significantly for ranges under 3,000 km, even with advanced interceptor technology. For distributed launches, these estimates recover earlier strategic scalings, which demonstrate the improved absentee ratio for larger or multiple launch areas. Constellations increase with the number of missiles and the number of interceptors launched at each. The economic estimates above suggest that two SBI per missile with a modest midcourse underlay is appropriate. The SBI KKV technology would appear to be common for space- and surface-based boost phase systems, and could have synergisms with improved midcourse intercept and discrimination systems. While advanced technology could be helpful in reducing costs, particularly for short range theater missiles, current technology appears adequate for pressing rogue ICBM, accidental, and unauthorized launches.

  19. Location-based games

    DEFF Research Database (Denmark)

    Ejsing-Duun, Stine

    In this dissertation, it is explored which prerequisites are necessary in location-based games (LBGs) to make meaningful the meeting between players and spatiality with an emphasis on physical locations. Throughout the dissertation, it has been shown that LBGs affect players’ perception of and be......In this dissertation, it is explored which prerequisites are necessary in location-based games (LBGs) to make meaningful the meeting between players and spatiality with an emphasis on physical locations. Throughout the dissertation, it has been shown that LBGs affect players’ perception...... of and behavior in everyday spaces, as the games reside on the boundaries between the continuums of play and ordinary, authentic and fictional, and as they merge physical and digital media. These are termed the six dimensions of LBGs. LBGs let the player explore the boundaries between these dimensions...... experiences of being in the world and the creation of meaning. The theory on motivation defines what motivation consists of and how it relates to our actions. This theory has been combined with theories concerning play and play culture, digital media, (digital) games, (optimal) experiences, landscape...

  20. DVD Based Electronic Pulser

    International Nuclear Information System (INIS)

    Morris, Scott J.; Pratt, Rick M.; Hughes, Michael A.; Kouzes, Richard T.; Pitts, W K.; Robinson, Eric E.

    2005-01-01

    This paper describes the design, construction, and testing of a DVD based electronic pulser system (DVDEPS). Such a device is used to generate pulse streams for simulation of both gamma and neutron detector systems. The DVDEPS reproduces a random pulse stream of a full HPGe spectrum as well as a digital pulse stream representing the output of a neutron multiplicity detector. The exchangeable DVD media contains over an hour of data for both detector systems and can contain an arbitrary gamma spectrum and neutron pulse stream. The data is written to the DVD using a desktop computer program from either actual or simulated spectra. The targeted use of the DVDEPS is authentication or validation of monitoring equipment for non-proliferation purposes, but it is also of general use whenever a complex data stream is required. The DVD based pulser combines the storage capacity and simplicity of DVD technology with commonly available electronic components to build a relatively inexpensive yet highly capable testing instrument

  1. Metasurface-Based Polarimeters

    Directory of Open Access Journals (Sweden)

    Fei Ding

    2018-04-01

    Full Text Available The state of polarization (SOP is an inherent property of light that can be used to gain crucial information about the composition and structure of materials interrogated with light. However, the SOP is difficult to experimentally determine since it involves phase information between orthogonal polarization states, and is uncorrelated with the light intensity and frequency, which can be easily determined with photodetectors and spectrometers. Rapid progress on optical gradient metasurfaces has resulted in the development of conceptually new approaches to the SOP characterization. In this paper, we review the fundamentals of and recent developments within metasurface-based polarimeters. Starting by introducing the concepts of generalized Snell’s law and Stokes parameters, we explain the Pancharatnam–Berry phase (PB-phase which is instrumental for differentiating between orthogonal circular polarizations. Then we review the recent progress in metasurface-based polarimeters, including polarimeters, spectropolarimeters, orbital angular momentum (OAM spectropolarimeters, and photodetector integrated polarimeters. The review is ended with a short conclusion and perspective for future developments.

  2. [Competence based medical education].

    Science.gov (United States)

    Bernabó, Jorge G; Buraschi, Jorge; Olcese, Juan; Buraschi, María; Duro, Eduardo

    2007-01-01

    The strategy of curriculum planning in the majority of the Schools of Medicine has shifted, in the past years, from curriculum models based in contents to outcome oriented curricula. Coincidently the interest in defining and evaluating the clinical competences that a graduate must have has grown. In our country, and particularly in the Associated Hospitals belonging to the Unidad Regional de Enseñanza IV of the UBA School of Medicine, evidence has been gathered showing that the acquisition of clinical competences during the grade is in general insufficient. The foundations and characteristics of PREM (Programa de Requisitos Esenciales Mínimos) are described. PREM is a tool to promote the apprenticeship of abilities and necessary skills for the practice of medicine. The objective of the program is to promote the apprenticeship of a well defined list of core competences considered indispensable for a general practitioner. An outcome oriented curriculum with a clear definition of the expected knowledge, skills and attitudes of a graduate of the programme, the promotion of learning experiences centered in the practice and evaluation tools based in direct observation of the student's performance should contribute to close the gap between what the Medicine Schools traditionally teach and evaluate, and what the doctor needs to know and needs to do to perform correctly its profession.

  3. Challenge Based Innovation gala

    CERN Multimedia

    CERN. Geneva; Utriainen, Tuuli Maria; Toivonen, Harri; Nordberg, Markus

    2014-01-01

    Challenge Based Innovation gala   There’s a new experiment starting in CERN called IdeaLab where we work together with detector R&D researchers to help them to bridge their knowledge into a more human, societally oriented context. Currently we are located in B153, but will move our activities to a new facility next to the Globe in May 2014. One of our first pilot projects is a 5 month course CBI (Challenge Based Innovation) where two multidisciplinary student teams join forces with Edusafe & TALENT projects at CERN. Their goal is to discover what kind of tools for learning could be created in collaboration with the two groups. After months of user interviews and low resolution prototyping they are ready to share the results with us in the form of an afternoon gala. We warmly welcome you to join us to see the students' results and experience the prototypes they have conceived. The event is in three parts, you are welcome to visit all of them,...

  4. Model Based Definition

    Science.gov (United States)

    Rowe, Sidney E.

    2010-01-01

    In September 2007, the Engineering Directorate at the Marshall Space Flight Center (MSFC) created the Design System Focus Team (DSFT). MSFC was responsible for the in-house design and development of the Ares 1 Upper Stage and the Engineering Directorate was preparing to deploy a new electronic Configuration Management and Data Management System with the Design Data Management System (DDMS) based upon a Commercial Off The Shelf (COTS) Product Data Management (PDM) System. The DSFT was to establish standardized CAD practices and a new data life cycle for design data. Of special interest here, the design teams were to implement Model Based Definition (MBD) in support of the Upper Stage manufacturing contract. It is noted that this MBD does use partially dimensioned drawings for auxiliary information to the model. The design data lifecycle implemented several new release states to be used prior to formal release that allowed the models to move through a flow of progressive maturity. The DSFT identified some 17 Lessons Learned as outcomes of the standards development, pathfinder deployments and initial application to the Upper Stage design completion. Some of the high value examples are reviewed.

  5. Constraint-based reachability

    Directory of Open Access Journals (Sweden)

    Arnaud Gotlieb

    2013-02-01

    Full Text Available Iterative imperative programs can be considered as infinite-state systems computing over possibly unbounded domains. Studying reachability in these systems is challenging as it requires to deal with an infinite number of states with standard backward or forward exploration strategies. An approach that we call Constraint-based reachability, is proposed to address reachability problems by exploring program states using a constraint model of the whole program. The keypoint of the approach is to interpret imperative constructions such as conditionals, loops, array and memory manipulations with the fundamental notion of constraint over a computational domain. By combining constraint filtering and abstraction techniques, Constraint-based reachability is able to solve reachability problems which are usually outside the scope of backward or forward exploration strategies. This paper proposes an interpretation of classical filtering consistencies used in Constraint Programming as abstract domain computations, and shows how this approach can be used to produce a constraint solver that efficiently generates solutions for reachability problems that are unsolvable by other approaches.

  6. Skull base tumor model.

    Science.gov (United States)

    Gragnaniello, Cristian; Nader, Remi; van Doormaal, Tristan; Kamel, Mahmoud; Voormolen, Eduard H J; Lasio, Giovanni; Aboud, Emad; Regli, Luca; Tulleken, Cornelius A F; Al-Mefty, Ossama

    2010-11-01

    Resident duty-hours restrictions have now been instituted in many countries worldwide. Shortened training times and increased public scrutiny of surgical competency have led to a move away from the traditional apprenticeship model of training. The development of educational models for brain anatomy is a fascinating innovation allowing neurosurgeons to train without the need to practice on real patients and it may be a solution to achieve competency within a shortened training period. The authors describe the use of Stratathane resin ST-504 polymer (SRSP), which is inserted at different intracranial locations to closely mimic meningiomas and other pathological entities of the skull base, in a cadaveric model, for use in neurosurgical training. Silicone-injected and pressurized cadaveric heads were used for studying the SRSP model. The SRSP presents unique intrinsic metamorphic characteristics: liquid at first, it expands and foams when injected into the desired area of the brain, forming a solid tumorlike structure. The authors injected SRSP via different passages that did not influence routes used for the surgical approach for resection of the simulated lesion. For example, SRSP injection routes included endonasal transsphenoidal or transoral approaches if lesions were to be removed through standard skull base approach, or, alternatively, SRSP was injected via a cranial approach if the removal was planned to be via the transsphenoidal or transoral route. The model was set in place in 3 countries (US, Italy, and The Netherlands), and a pool of 13 physicians from 4 different institutions (all surgeons and surgeons in training) participated in evaluating it and provided feedback. All 13 evaluating physicians had overall positive impressions of the model. The overall score on 9 components evaluated--including comparison between the tumor model and real tumor cases, perioperative requirements, general impression, and applicability--was 88% (100% being the best possible

  7. Space-Based Range

    Science.gov (United States)

    2008-01-01

    Space-Based Range (SBR), previously known as Space-Based Telemetry and Range Safety (STARS), is a multicenter NASA proof-of-concept project to determine if space-based communications using NASA's Tracking and Data Relay Satellite System (TDRSS) can support the Range Safety functions of acquiring tracking data and generating flight termination signals, while also providing broadband Range User data such as voice, video, and vehicle/payload data. There was a successful test of the Range Safety system at Wallops Flight Facility (WFF) on December 20, 2005, on a two-stage Terrier-Orion spin-stabilized sounding rocket. SBR transmitted GPS tracking data and maintained links with two TDRSS satellites simultaneously during the 10-min flight. The payload section deployed a parachute, landed in the Atlantic Ocean about 90 miles downrange from the launch site, and was successfully recovered. During the Terrier-Orion tests flights, more than 99 percent of all forward commands and more than 95 percent of all return frames were successfully received and processed. The time latency necessary for a command to travel from WFF over landlines to White Sands Complex and then to the vehicle via TDRSS, be processed onboard, and then be sent back to WFF was between 1.0 s and 1.1 s. The forward-link margins for TDRS-10 (TDRS East [TDE]) were 11 dB to 12 dB plus or minus 2 dB, and for TDRS-4 (TDRS Spare [TDS]) were 9 dB to 10 dB plus or minus 1.5 dB. The return-link margins for both TDE and TDS were 6 dB to 8 dB plus or minus 3 dB. There were 11 flights on an F-15B at Dryden Flight Research Center (DFRC) between November 2006 and February 2007. The Range User system tested a 184-element TDRSS Ku-band (15 GHz) phased-array antenna with data rates of 5 Mbps and 10 Mbps. This data was a combination of black-and-white cockpit video, Range Safety tracking and transceiver data, and aircraft and antenna controller data streams. IP data formatting was used.

  8. Touching base with OPERA

    CERN Multimedia

    CERN Bulletin

    2011-01-01

    Three seminars – at CERN, at Gran Sasso and in Japan – and an article calling for the scrutiny of the scientific community: the OPERA Collaboration opened its research publicly. In addition to huge press coverage, this triggered welcome reactions from colleagues around the world, many of whom will attempt to independently interpret and reproduce the measurement. OPERA’s Spokesperson touches base with the Bulletin.   The CERN Main Auditorium was crowded as OPERA Physics co-ordinator Dario Autiero presented the results of their research (23 September 2011). According to the OPERA strategy, the results of the measurements are in the hands of the scientific community and, as for any other scientific result, several months will be needed before other groups will be able to perform an independent measurement. In the meantime, the OPERA Collaboration is dealing with an avalanche of emails from the scientific community, members of the general public, and the press. &...

  9. Bases para proyectiles dirigidos

    Directory of Open Access Journals (Sweden)

    Editorial, Equipo

    1959-03-01

    Full Text Available Aunque actualmente no se ha llegado a una línea general de métodos o sistemas que gobiernen un tipo característico de rampa y servicios auxiliares necesarios para el lanzamiento al espacio de proyectiles dirigidos a grandes alturas y distancias, las experiencias obtenidas en diferentes ensayos, utilizando distintos tipos de proyectiles y trayectorias balísticas, han sentado toda una serie de procedimientos, datos y conclusiones de gran valor balístico que, aun teniendo en cuenta la continua evolución del proyectil, sus formas, combustibles y alcances, se conocen ya, con bastante aproximación, las condiciones mínimas que ha de reunir una base dedicada a este tipo de lanzamientos.

  10. Rate based failure detection

    Science.gov (United States)

    Johnson, Brett Emery Trabun; Gamage, Thoshitha Thanushka; Bakken, David Edward

    2018-01-02

    This disclosure describes, in part, a system management component and failure detection component for use in a power grid data network to identify anomalies within the network and systematically adjust the quality of service of data published by publishers and subscribed to by subscribers within the network. In one implementation, subscribers may identify a desired data rate, a minimum acceptable data rate, desired latency, minimum acceptable latency and a priority for each subscription. The failure detection component may identify an anomaly within the network and a source of the anomaly. Based on the identified anomaly, data rates and or data paths may be adjusted in real-time to ensure that the power grid data network does not become overloaded and/or fail.

  11. Behavior based safety

    International Nuclear Information System (INIS)

    Sudhikumaran, T.V.; Mehta, S.C.; Goyal, D.K.

    2009-01-01

    Behaviour Based Safety (popularly known as BBS) is a new methodology for achieving injury free work place and total Safety Culture. BBS is successfully being implemented and is being practiced as a work methodology for achieving a loss and injury free work environment and work practice. Through BBS, it was brought out that the root causes of all Industrial accidents some how originate from the 'at risk' behaviour of some individual or group of individuals at some level. The policy of NPCIL is to excel in the field of Industrial and Fire Safety in comparison to international standards. This article indents to bring out the various parameters helping in installing BBS programme at any plant. (author)

  12. Fuel cycle based safeguards

    International Nuclear Information System (INIS)

    De Montmollin, J.M.; Higinbotham, W.A.; Gupta, D.

    1985-07-01

    In NPT safeguards the same model approach and absolute-quantity inspection goals are applied at present to all similar facilities, irrespective of the State's fuel cycle. There is a continuing interest and activity on the part of the IAEA in new NPT safeguards approaches that more directly address a State's nuclear activities as a whole. This fuel cycle based safeguards system is expected to a) provide a statement of findings for the entire State rather than only for individual facilities; b) allocate inspection efforts so as to reflect more realistically the different categories of nuclear materials in the different parts of the fuel cycle and c) provide more timely and better coordinated information on the inputs, outputs and inventories of nuclear materials in a State. (orig./RF) [de

  13. Integrated data base program

    International Nuclear Information System (INIS)

    Notz, K.J.

    1981-01-01

    The IDB Program provides direct support to the DOE Nuclear Waste Management and Fuel Cycle Programs and their lead sites and support contractors by providing and maintaining a current, integrated data base of spent fuel and radioactive waste inventories and projections. All major waste types (HLW, TRU, and LLW) and sources (government, commerical fuel cycle, and I/I) are included. A major data compilation was issued in September, 1981: Spent Fuel and Radioactive Waste Inventories and Projections as of December 31, 1980, DOE/NE-0017. This report includes chapters on Spent Fuel, HLW, TRU Waste, LLW, Remedial Action Waste, Active Uranium Mill Tailings, and Airborne Waste, plus Appendices with more detailed data in selected areas such as isotopics, radioactivity, thermal power, projections, and land usage. The LLW sections include volumes, radioactivity, thermal power, current inventories, projected inventories and characteristics, source terms, land requirements, and a breakdown in terms of government/commercial and defense/fuel cycle/I and I

  14. Space-based detectors

    DEFF Research Database (Denmark)

    Sesana, A.; Weber, W. J.; Killow, C. J.

    2014-01-01

    ) is planned for 2015. This mission and its payload “LISA Technology Package” will demonstrate key technologies for LISA. In this context, reference masses in free fall for LISA, and gravitational physics in general, was described by William Weber, laser interferometry at the pico-metre level and the optical......The parallel session C5 on Space-Based Detectors gave a broad overview over the planned space missions related to gravitational wave detection. Overviews of the revolutionary science to be expected from LISA was given by Alberto Sesana and Sasha Buchman. The launch of LISA Pathfinder (LPF...... bench of LPF was presented by Christian Killow and the performance of the LPF optical metrology system by Paul McNamara. While LPF will not yet be sensitive to gravitational waves, it may nevertheless be used to explore fundamental physics questions, which was discussed by Michele Armano. Some parts...

  15. Base isolation: Fresh insight

    Energy Technology Data Exchange (ETDEWEB)

    Shustov, V.

    1993-07-15

    The objective of the research is a further development of the engineering concept of seismic isolation. Neglecting the transient stage of seismic loading results in a widespread misjudgement: The force of resistance associated with velocity is mostly conceived as a source of damping vibrations, though it is an active force at the same time, during an earthquake type excitation. For very pliant systems such as base isolated structures with relatively low bearing stiffness and with artificially added heavy damping mechanism, the so called `damping`` force may occur even the main pushing force at an earthquake. Thus, one of the two basic pillars of the common seismic isolation philosophy, namely, the doctrine of usefulness and necessity of a strong damping mechanism, is turning out to be a self-deception, sometimes even jeopardizing the safety of structures and discrediting the very idea of seismic isolation. There is a way out: breaking with damping dependancy.

  16. Transaction based approach

    Science.gov (United States)

    Hunka, Frantisek; Matula, Jiri

    2017-07-01

    Transaction based approach is utilized in some methodologies in business process modeling. Essential parts of these transactions are human beings. The notion of agent or actor role is usually used for them. The paper on a particular example describes possibilities of Design Engineering Methodology for Organizations (DEMO) and Resource-Event-Agent (REA) methodology. Whereas the DEMO methodology can be regarded as a generic methodology having its foundation in the theory of Enterprise Ontology the REA methodology is regarded as the domain specific methodology and has its origin in accountancy systems. The results of these approaches is that the DEMO methodology captures everything that happens in the reality with a good empirical evidence whereas the REA methodology captures only changes connected with economic events. Economic events represent either change of the property rights to economic resource or consumption or production of economic resources. This results from the essence of economic events and their connection to economic resources.

  17. Mucin-Based Vaccines

    Science.gov (United States)

    Richardson, Jonathan P.; MacMillan, Derek

    Mucins are heavily O-glycosylated cell surface and secreted glycoproteins . In addition to orchestrating cell-extracellular matrix and cell-cell interactions in healthy organisms mucins are also the major carriers of altered glycosylation in carcinomas. Tumor-associated antigens displayed by cancer cells comprise oligosaccharide and glycopeptide motifs not encountered in the same locale or at the same frequency in healthy cells, and potentially confer a selective advantage to the tumor. Frequently tumor-associated antigens are under-glycosylated and prematurely sialylated, and it is these relatively simple saccharide and glycopeptide structures that have been targeted to serve as drug candidates in most cases. A major goal is to assemble glycopeptide vaccine candidates based on partial mucin sequences and displaying tumor-associated antigens that can mount a potent immunological tumor-specific response when, in reality, the tumor has already coerced the immune system into a state of co-existence.

  18. Cellular based cancer vaccines

    DEFF Research Database (Denmark)

    Hansen, M; Met, Ö; Svane, I M

    2012-01-01

    -associated antigens introduced to dendritic cells (DCs) generated in vitro. This may in part result from suboptimal maturation of DCs leading to insufficient production of IL-12, a key driver of cellular immunity. Therefore, tremendous efforts have been put into the design of maturation cocktails that are able...... of tolerogenic molecules and activation-induced dendritic cell death should be avoided. Thus, compounds such as IFN-γ may initially induce immunity but later on tolerance. Maturation with PGE(2) obviously promotes migration via expression of CCR7 but on the down side PGE(2) limits the production of IL-12...... to transiently affect in vitro migration via autocrine receptor-mediated endocytosis of CCR7. In the current review, we discuss optimal design of DC maturation focused on pre-clinical as well as clinical results from standard and polarized dendritic cell based cancer vaccines....

  19. PROBLEM-BASED LEARNING

    Directory of Open Access Journals (Sweden)

    David Esema

    2012-12-01

    Full Text Available Problem-Based Learning (PBL, adalah model pembelajaran yang awalnya dikembangkan di dunia pendidikan medis, namun kini telah digunakan secara luas di berbagai jenjang dan bidang pendidikan. Basis teortits dari PBL adalah kolaborativisme dan konstruktivisme. Kemitraan, keterbukaan dan kejujuran, rasa hormat, dan kepercayaan menjadi nilai-nilai yang mendasari dan sekaligus menjadi prasyarat bagi keberhasilan PBL Sintaks PBL meliputi: pengenalan dan pemahaman konsep dasar, eksplorasi fakta dan informasi relevan secara mandiri, bertukar pemahaman dalam kelompok/kelas, kesimpulan dan evaluasi. Beberapa riset mengenai PBL baik di luar maupun di dalam negeri yang dipaparkan dan dibandingkan dalam tulisan ini menunjukkan data tentang efektifitas PBL dalam kegiatan pembelajaran.

  20. Graphene based biosensors

    Energy Technology Data Exchange (ETDEWEB)

    Gürel, Hikmet Hakan, E-mail: hhakan.gurel@kocaeli.edu.tr [Kocaeli University, Kocaeli (Turkey); Salmankurt, Bahadır [Sakarya University, Sakarya (Turkey)

    2016-03-25

    Nanometer-sized graphene as a 2D material has unique chemical and electronic properties. Because of its unique physical, chemical, and electronic properties, its interesting shape and size make it a promising nanomaterial in many biological applications. It is expected that biomaterials incorporating graphene will be developed for the graphene-based drug delivery systems and biomedical devices. The interactions of biomolecules and graphene are long-ranged and very weak. Development of new techniques is very desirable for design of bioelectronics sensors and devices. In this work, we present first-principles calculations within density functional theory to calculate effects of charging on nucleobases on graphene. It is shown that how modify structural and electronic properties of nucleobases on graphene by applied charging.

  1. Liaison based assembly design

    Energy Technology Data Exchange (ETDEWEB)

    Ames, A.; Kholwadwala, D.; Wilson, R.H.

    1996-12-01

    Liaison Based Assembly Design extends the current information infrastructure to support design in terms of kinematic relationships between parts, or liaisons. These liaisons capture information regarding contact, degrees-of-freedom constraints and containment relationships between parts in an assembly. The project involved defining a useful collection of liaison representations, investigating their properties, and providing for maximum use of the data in downstream applications. We tested our ideas by implementing a prototype system involving extensions to Pro/Engineer and the Archimedes assembly planner. With an expanded product model, the design system is more able to capture design intent. When a product update is attempted, increased knowledge availability improves our ability to understand the effect of design changes. Manufacturing and analysis disciplines benefit from having liaison information available, so less time is wasted arguing over incomplete design specifications and our enterprise can be more completely integrated.

  2. Lunar based massdriver applications

    Science.gov (United States)

    Ehresmann, Manfred; Gabrielli, Roland Atonius; Herdrich, Georg; Laufer, René

    2017-05-01

    The results of a lunar massdriver mission and system analysis are discussed and show a strong case for a permanent lunar settlement with a site near the lunar equator. A modular massdriver concept is introduced, which uses multiple acceleration modules to be able to launch large masses into a trajectory that is able to reach Earth. An orbital mechanics analysis concludes that the launch site will be in the Oceanus Procellarum a flat, Titanium rich lunar mare area. It is further shown that the bulk of massdriver components can be manufactured by collecting lunar minerals, which are broken down into its constituting elements. The mass to orbit transfer rates of massdriver case study are significant and can vary between 1.8 kt and 3.3 megatons per year depending on the available power. Thus a lunar massdriver would act as a catalyst for any space based activities and a game changer for the scale of feasible space projects.

  3. Model Based Temporal Reasoning

    Science.gov (United States)

    Rabin, Marla J.; Spinrad, Paul R.; Fall, Thomas C.

    1988-03-01

    Systems that assess the real world must cope with evidence that is uncertain, ambiguous, and spread over time. Typically, the most important function of an assessment system is to identify when activities are occurring that are unusual or unanticipated. Model based temporal reasoning addresses both of these requirements. The differences among temporal reasoning schemes lies in the methods used to avoid computational intractability. If we had n pieces of data and we wanted to examine how they were related, the worst case would be where we had to examine every subset of these points to see if that subset satisfied the relations. This would be 2n, which is intractable. Models compress this; if several data points are all compatible with a model, then that model represents all those data points. Data points are then considered related if they lie within the same model or if they lie in models that are related. Models thus address the intractability problem. They also address the problem of determining unusual activities if the data do not agree with models that are indicated by earlier data then something out of the norm is taking place. The models can summarize what we know up to that time, so when they are not predicting correctly, either something unusual is happening or we need to revise our models. The model based reasoner developed at Advanced Decision Systems is thus both intuitive and powerful. It is currently being used on one operational system and several prototype systems. It has enough power to be used in domains spanning the spectrum from manufacturing engineering and project management to low-intensity conflict and strategic assessment.

  4. DNA-based machines.

    Science.gov (United States)

    Wang, Fuan; Willner, Bilha; Willner, Itamar

    2014-01-01

    The base sequence in nucleic acids encodes substantial structural and functional information into the biopolymer. This encoded information provides the basis for the tailoring and assembly of DNA machines. A DNA machine is defined as a molecular device that exhibits the following fundamental features. (1) It performs a fuel-driven mechanical process that mimics macroscopic machines. (2) The mechanical process requires an energy input, "fuel." (3) The mechanical operation is accompanied by an energy consumption process that leads to "waste products." (4) The cyclic operation of the DNA devices, involves the use of "fuel" and "anti-fuel" ingredients. A variety of DNA-based machines are described, including the construction of "tweezers," "walkers," "robots," "cranes," "transporters," "springs," "gears," and interlocked cyclic DNA structures acting as reconfigurable catenanes, rotaxanes, and rotors. Different "fuels", such as nucleic acid strands, pH (H⁺/OH⁻), metal ions, and light, are used to trigger the mechanical functions of the DNA devices. The operation of the devices in solution and on surfaces is described, and a variety of optical, electrical, and photoelectrochemical methods to follow the operations of the DNA machines are presented. We further address the possible applications of DNA machines and the future perspectives of molecular DNA devices. These include the application of DNA machines as functional structures for the construction of logic gates and computing, for the programmed organization of metallic nanoparticle structures and the control of plasmonic properties, and for controlling chemical transformations by DNA machines. We further discuss the future applications of DNA machines for intracellular sensing, controlling intracellular metabolic pathways, and the use of the functional nanostructures for drug delivery and medical applications.

  5. Organic Biochar Based Fertilization

    Science.gov (United States)

    Schmidt, Hans-Peter; Pandit, Bishnu Hari; Cornelissen, Gerard; Kammann, Claudia

    2017-04-01

    Biochar produced in cost-efficient flame curtain kilns (Kon-Tiki) was nutrient enriched either with cow urine or with dissolved mineral (NPK) fertilizer to produce biochar-based fertilizers containing between 60-100 kg N, 5-60 kg P2O5 and 60-100 kg K2O, respectively, per ton of biochar. In 21 field trials nutrient-enriched biochars were applied at rates of 0.5 to 2 t ha-1 into the root zone of 13 different annual and perennial crops. Treatments combining biochar, compost and organic or chemical fertilizer were evaluated; control treatments contained the same amounts of nutrients but without biochar. All nutrient-enriched biochar substrates improved yields compared to their respective no-biochar controls. Biochar enriched with dissolved NPK produced on average 20% ± 5.1% (N=4) higher yields than standard NPK fertilization without biochar. Cow urine-enriched biochar blended with compost resulted on average in 123% ± 76.7% (N=13) higher yields compared to the organic farmer practice with cow urine-blended compost and outcompeted NPK-enriched biochar (same nutrient dose) by 103% ± 12.4% (N=4) on average. 21 field trials robustly revealed that low-dosage root zone application of organic biochar-based fertilizers caused substantial yield increases in rather fertile silt loam soils compared to traditional organic fertilization and to mineral NPK- or NPK-biochar fertilization. This can likely be explained by the nutrient carrier effect of biochar causing a slow nutrient release behavior, more balanced nutrient fluxes and reduced nutrient losses especially when liquid organic nutrients are used for the biochar enrichment. The results promise new pathways for optimizing organic farming and improving on-farm nutrient cycling.

  6. Mainstreaming gesture based interfaces

    Directory of Open Access Journals (Sweden)

    David Procházka

    2013-01-01

    Full Text Available Gestures are a common way of interaction with mobile devices. They emerged especially with the iPhone production. Gestures in currently used devices are usually based on the original gestures presented by Apple in its iOS (iPhone Operating System. Therefore, there is a wide agreement on the mobile gesture design. In last years, it is possible to see experiments with gesture usage also in the other areas of consumer electronics and computers. The examples can include televisions, large projections etc. These gestures can be marked as spatial or 3D gestures. They are connected with a natural 3D environment rather than with a flat 2D screen. Nevertheless, it is hard to find a comparable design agreement within the spatial gestures. Various projects are based on completely different gesture sets. This situation is confusing for their users and slows down spatial gesture adoption.This paper is focused on the standardization of spatial gestures. The review of projects focused on spatial gesture usage is provided in the first part. The main emphasis is placed on the usability point-of-view. On the basis of our analysis, we argue that the usability is the key issue enabling the wide adoption. The mobile gesture emergence was possible easily because the iPhone gestures were natural. Therefore, it was not necessary to learn them.The design and implementation of our presentation software, which is controlled by gestures, is outlined in the second part of the paper. Furthermore, the usability testing results are provided as well. We have tested our application on a group of users not instructed in the implemented gestures design. These results were compared with the other ones, obtained with our original implementation. The evaluation can be used as the basis for implementation of similar projects.

  7. Telephone-Based Coaching.

    Science.gov (United States)

    Boccio, Mindy; Sanna, Rashel S; Adams, Sara R; Goler, Nancy C; Brown, Susan D; Neugebauer, Romain S; Ferrara, Assiamira; Wiley, Deanne M; Bellamy, David J; Schmittdiel, Julie A

    2017-03-01

    Many Americans continue to smoke, increasing their risk of disease and premature death. Both telephone-based counseling and in-person tobacco cessation classes may improve access for smokers seeking convenient support to quit. Little research has assessed whether such programs are effective in real-world clinical populations. Retrospective cohort study comparing wellness coaching participants with two groups of controls. Kaiser Permanente Northern California, a large integrated health care delivery system. Two hundred forty-one patients who participated in telephonic tobacco cessation coaching from January 1, 2011, to March 31, 2012, and two control groups: propensity-score-matched controls, and controls who participated in a tobacco cessation class during the same period. Wellness coaching participants received an average of two motivational interviewing-based coaching sessions that engaged the patient, evoked their reason to consider quitting, and helped them establish a quit plan. Self-reported quitting of tobacco and fills of tobacco cessation medications within 12 months of follow-up. Logistic regressions adjusting for age, gender, race/ethnicity, and primary language. After adjusting for confounders, tobacco quit rates were higher among coaching participants vs. matched controls (31% vs. 23%, p Coaching participants and class attendees filled tobacco-cessation prescriptions at a higher rate (47% for both) than matched controls (6%, p coaching was as effective as in-person classes and was associated with higher rates of quitting compared to no treatment. The telephonic modality may increase convenience and scalability for health care systems looking to reduce tobacco use and improve health.

  8. Loyalty-based management.

    Science.gov (United States)

    Reichheld, F F

    1993-01-01

    Despite a flurry of activities aimed at serving customers better, few companies have systematically revamped their operations with customer loyalty in mind. Instead, most have adopted improvement programs ad hoc, and paybacks haven't materialized. Building a highly loyal customer base must be integral to a company's basic business strategy. Loyalty leaders like MBNA credit cards are successful because they have designed their entire business systems around customer loyalty--a self-reinforcing system in which the company delivers superior value consistently and reinvents cash flows to find and keep high-quality customers and employees. The economic benefits of high customer loyalty are measurable. When a company consistently delivers superior value and wins customer loyalty, market share and revenues go up, and the cost of acquiring new customers goes down. The better economics mean the company can pay workers better, which sets off a whole chain of events. Increased pay boosts employee moral and commitment; as employees stay longer, their productivity goes up and training costs fall; employees' overall job satisfaction, combined with their experience, helps them serve customers better; and customers are then more inclined to stay loyal to the company. Finally, as the best customers and employees become part of the loyalty-based system, competitors are left to survive with less desirable customers and less talented employees. To compete on loyalty, a company must understand the relationships between customer retention and the other parts of the business--and be able to quantify the linkages between loyalty and profits. It involves rethinking and aligning four important aspects of the business: customers, product/service offering, employees, and measurement systems.

  9. Base Research Program

    Energy Technology Data Exchange (ETDEWEB)

    Everett Sondreal; John Hendrikson

    2009-03-31

    In June 2009, the Energy & Environmental Research Center (EERC) completed 11 years of research under the U.S. Department of Energy (DOE) Base Cooperative Agreement No. DE-FC26-98FT40320 funded through the Office of Fossil Energy (OFE) and administered at the National Energy Technology Laboratory (NETL). A wide range of diverse research activities were performed under annual program plans approved by NETL in seven major task areas: (1) resource characterization and waste management, (2) air quality assessment and control, (3) advanced power systems, (4) advanced fuel forms, (5) value-added coproducts, (6) advanced materials, and (7) strategic studies. This report summarizes results of the 67 research subtasks and an additional 50 strategic studies. Selected highlights in the executive summary illustrate the contribution of the research to the energy industry in areas not adequately addressed by the private sector alone. During the period of performance of the agreement, concerns have mounted over the impact of carbon emissions on climate change, and new programs have been initiated by DOE to ensure that fossil fuel resources along with renewable resources can continue to supply the nation's transportation fuel and electric power. The agreement has addressed DOE goals for reductions in CO{sub 2} emissions through efficiency, capture, and sequestration while expanding the supply and use of domestic energy resources for energy security. It has further contributed to goals for near-zero emissions from highly efficient coal-fired power plants; environmental control capabilities for SO{sub 2}, NO{sub x}, fine respirable particulate (PM{sub 2.5}), and mercury; alternative transportation fuels including liquid synfuels and hydrogen; and synergistic integration of fossil and renewable resources (e.g., wind-, biomass-, and coal-based electrical generation).

  10. Fantaasia / Juhan Habicht

    Index Scriptorium Estoniae

    Habicht, Juhan, 1954-

    2000-01-01

    Arvustus: Howard, Robert E. Draakoni tund / tlk. Eva Luts. Tartu : Fantaasia, 1999 ; Anderson, Poul. Murtud mõõk / tlk. Eva Luts. Tartu : Fantaasia, 1999 ; Anderson, Poul. Kolm südant ja kolm lõvi / tlk. Eva Luts. Tartu : Fantaasia, 2000.

  11. A Note on Equivalence of Bipartite States under Local Unitary Transformations

    OpenAIRE

    Sun, Bao-Zhi; Fei, Shao-Ming; Li-Jost, Xianqing; Wang, Zhi-Xi

    2006-01-01

    The equivalence of arbitrary dimensional bipartite states under local unitary transformations (LUT) is studied. A set of invariants and ancillary invariants under LUT is presented. We show that two states are equivalent under LUT if and only if they have the same values for all of these invariants.

  12. Significance and clinical value of the transitional zone volume (TZV ...

    African Journals Online (AJOL)

    Introduction: A lot of diagnostic tools are present for assessing the degree of LUTs. Pressure-flow studies are invasive and cannot be justified in all patients suffering from LUTs. From here came the clinical importance of searching for another clinical tool, to help in assessing the degree of LUTS. Objective: The aim of this ...

  13. Integrated Agent-based and Case-based Reasoning System

    International Nuclear Information System (INIS)

    Mohamed, A.H.

    2014-01-01

    Increasing the complexity of the modern systems drives to use multiple case bases in the case based reasoning (CBR) system to solve a single problem. Sometimes, it is difficult and unman gable task to store the knowledge of the domain of these complex systems in a single case base. On the other hand, usually these multiple case bases having different structures that cause main limitation for solving the problem. This research introduces integrating the case based systems using multiple case bases with agent-based technique. This enables the system to use different case base structures. The proposed system has been applied for designing the radiotherapy of the kidney, liver and skin cancers. It is found that, the suggested system has simplified, managed the complexity, increasing the accuracy of the of CBR systems. Therefore, it can be applied with a good performance for the practical sites

  14. A comparison between centre-based and expedition-based ...

    African Journals Online (AJOL)

    A comparison between centre-based and expedition-based (wilderness) adventure experiential learning regarding group effectiveness: A mixed methodology ... it is strongly recommended that a centre-based adventure program be used – mainly on account of active involvement, intensive social interaction and continuous ...

  15. NMR studies concerning base-base interactions in oligonucleotides

    International Nuclear Information System (INIS)

    Hoogen, Y.T. van den.

    1988-01-01

    Two main subjects are treated in the present thesis. The firsst part principally deals with the base-base interactions in single-stranded oligoribonucleotides. The second part presents NMR and model-building studies of DNA and RNA duplexes containing an unpaired base. (author). 242 refs.; 26 figs.; 24 tabs

  16. Implementation of Task-based and problem-based ...

    African Journals Online (AJOL)

    This paper describes implementation of new task-based and problem-based pharmacotherapy course for 3rd year pre-clinical medical students at Faculty of Medicine and Health Sciences, Omdurman Islamic University. Keywords: Pharmacotherapy, Task-based learning, P -drug. Sudan Journal of Medical Science Vol.

  17. An evidence-based review of NX1207 and its potential in the treatment of benign prostatic hyperplasia

    Directory of Open Access Journals (Sweden)

    Kunit T

    2014-07-01

    Full Text Available Thomas Kunit, Lukas LusuardiDepartment of Urology and Andrology, Paracelsus Medical University Salzburg, Salzburg, AustriaAbstract: In elderly men, benign prostatic hyperplasia is often associated with lower urinary tract symptoms, and its prevalence rises with age. Lower urinary tract symptoms can be very bothersome and lead to a decrease in health-related quality of life. Furthermore, benign prostatic hyperplasia is a progressive disease that can lead to serious complications like acute urinary retention. Medical treatment with α1-blockers or 5α-reductase inhibitors is recommended by the European Association of Urology. On the other hand, there are some new innovations such as NX1207. The aim of this review is to summarize the published data. NX1207 is a new drug that is administered by transrectal intraprostatic injection under ultrasound guidance. The substance leads to prostate volume reduction and symptomatic improvement. However, patient numbers are still low and currently treatment with NX1207 is still experimental.Keywords: BPH, NX 1207, hyperplasia, LUTS, prostate

  18. Flow-Based Provenance

    Directory of Open Access Journals (Sweden)

    Sabah Al-Fedaghi

    2017-02-01

    Full Text Available Aim/Purpose: With information almost effortlessly created and spontaneously available, current progress in Information and Communication Technology (ICT has led to the complication that information must be scrutinized for trustworthiness and provenance. Information systems must become provenance-aware to be satisfactory in accountability, reproducibility, and trustworthiness of data. Background:\tMultiple models for abstract representation of provenance have been proposed to describe entities, people, and activities involved in producing a piece of data, including the Open Provenance Model (OPM and the World Wide Web Consortium. These models lack certain concepts necessary for specifying workflows and encoding the provenance of data products used and generated. Methodology: Without loss of generality, the focus of this paper is on OPM depiction of provenance in terms of a directed graph. We have redrawn several case studies in the framework of our proposed model in order to compare and evaluate it against OPM for representing these cases. Contribution: This paper offers an alternative flow-based diagrammatic language that can form a foundation for modeling of provenance. The model described here provides an (abstract machine-like representation of provenance. Findings: The results suggest a viable alternative in the area of diagrammatic representation for provenance applications. Future Research: Future work will seek to achieve more accurate comparisons with current models in the field.

  19. Refractory metal based superalloys

    International Nuclear Information System (INIS)

    Alonso, Paula R.; Vicente, Eduardo E.; Rubiolo, Gerardo H.

    1999-01-01

    Refractory metals are looked as promising materials for primary circuits in fission reactors and even as fusion reactor components. Indeed, superalloys could be developed which take advantage of their high temperature properties together with the benefits of a two- phase (intermetallic compound-refractory metal matrix) coherent structure. In 1993, researchers of the Office National d'Etudes et de Recherches Aerospatiales of France reported the observation of such a coherent structure in the Ta-Ti-Zr-Al-Nb-Mo system although the exact composition is not reported. The intermetallic compound would be Ti 2 AlMo based. However, the formation of this compound and its possible coexistence with a disordered bcc phase in the ternary system Ti-Al-Mo is a controversial subject in the related literature. In this work we develop a technique to obtain homogeneous alloys samples with 50 Ti-25 Al-25 Mo composition. The resulting specimens were characterized by optical and electronic metallography (SEM), microprobe composition measurements (EPMA) and X-ray diffraction (XRD) analyses. The results show the evidence for a bcc (A2→B2) ordering reaction in the Ti-Al-Mo system in the 50 Ti-25 Al-25 Mo composition. (author)

  20. Fluorescence lifetime based bioassays

    Science.gov (United States)

    Meyer-Almes, Franz-Josef

    2017-12-01

    Fluorescence lifetime (FLT) is a robust intrinsic property and material constant of fluorescent matter. Measuring this important physical indicator has evolved from a laboratory curiosity to a powerful and established technique for a variety of applications in drug discovery, medical diagnostics and basic biological research. This distinct trend was mainly driven by improved and meanwhile affordable laser and detection instrumentation on the one hand, and the development of suitable FLT probes and biological assays on the other. In this process two essential working approaches emerged. The first one is primarily focused on high throughput applications employing biochemical in vitro assays with no requirement for high spatial resolution. The second even more dynamic trend is the significant expansion of assay methods combining highly time and spatially resolved fluorescence data by fluorescence lifetime imaging. The latter approach is currently pursued to enable not only the investigation of immortal tumor cell lines, but also specific tissues or even organs in living animals. This review tries to give an actual overview about the current status of FLT based bioassays and the wide range of application opportunities in biomedical and life science areas. In addition, future trends of FLT technologies will be discussed.

  1. Mentalization-Based Treatment.

    Science.gov (United States)

    Bateman, Anthony; Fonagy, Peter

    2013-11-01

    The concept of mentalizing has captured the interest and imagination of an astonishing range of people-from psychoanalysts to neuroscientists, from child development researchers to geneticists, from existential philosophers to phenomenologists-all of whom seem to have found it useful. According to the Thompson Reuter maintained Web of Science, the use of the term in titles and abstracts of scientific papers increased from 10 to 2,750 between 1991 and 2011. Clinicians in particular have enthusiastically embraced the idea, and have put it to innovative use in their practices. Mentalization-based treatment (MBT)-making mentalizing a core focus of therapy-was initially developed for the treatment of borderline personality disorder (BPD) in routine clinical services delivered in group and individual modalities. Therapy with mentalizing as a central component is currently being developed for treatment of numerous groups, including people with antisocial personality disorder, substance abuse, eating disorders, and at-risk mothers with infants and children (A. Bateman & Fonagy, 2011). It is also being used with families and adolescents, in schools, and in managing social groups (Asen & Fonagy, 2011; Fonagy et al., 2009; Twemlow, Fonagy, & Sacco, 2005a, 2005b). In this article, we focus on MBT in the treatment of BPD.

  2. Communication Base Station Log Analysis Based on Hierarchical Clustering

    Directory of Open Access Journals (Sweden)

    Zhang Shao-Hua

    2017-01-01

    Full Text Available Communication base stations generate massive data every day, these base station logs play an important value in mining of the business circles. This paper use data mining technology and hierarchical clustering algorithm to group the scope of business circle for the base station by recording the data of these base stations.Through analyzing the data of different business circle based on feature extraction and comparing different business circle category characteristics, which can choose a suitable area for operators of commercial marketing.

  3. Risk-based configuration control

    International Nuclear Information System (INIS)

    Szikszai, T.

    1997-01-01

    The presentation discusses the following issues: The Configuration Control; The Risk-based Configuration Control (during power operation mode, and during shutdown mode). PSA requirements. Use of Risk-based Configuration Control System. Configuration Management (basic elements, benefits, information requirements)

  4. Mindfulness-Based Stress Reduction

    Science.gov (United States)

    ... R S T U V W X Y Z Mindfulness-Based Stress Reduction (MBSR) Information 6 Things You ... Disease and Dementia (12/20/13) Research Spotlights Mindfulness-Based Stress Reduction, Cognitive-Behavioral Therapy Shown To ...

  5. ‘"Education-based Research"

    DEFF Research Database (Denmark)

    Degn Johansson, Troels

    This paper lays out a concept of education-based research-the production of research knowledge within the framework of tertiary design education-as an integration of problem-based learning and research-based education. This leads to a critique of reflective practice as the primary way to facilita...... learning at this level, a discussion of the nature of design problems in the instrumentalist tradition, and some suggestions as to how design studies curricula may facilitate education-based research....

  6. ASCOT data base management system

    Energy Technology Data Exchange (ETDEWEB)

    Barbieri, J.; Nyholm, R.; Castro, C.; Hill, K.

    1980-07-01

    The ASCOT data base management system is designed to handle the data produced by both the experimental and theoretical efforts of the DOE Atmospheric Studies in Complex Terrain (ASCOT) project. The data base envisioned is hierarchically structured, sparse, and compact. Information concerning any given data file is stored in a directory file. The data base management system uses a relational data management approach. Presently three management schema are being developed for use with the data base. 5 figures.

  7. Graphene based gene transfection

    Science.gov (United States)

    Feng, Liangzhu; Zhang, Shuai; Liu, Zhuang

    2011-03-01

    Graphene as a star in materials research has been attracting tremendous attentions in the past few years in various fields including biomedicine. In this work, for the first time we successfully use graphene as a non-toxic nano-vehicle for efficient gene transfection. Graphene oxide (GO) is bound with cationic polymers, polyethyleneimine (PEI) with two different molecular weights at 1.2 kDa and 10 kDa, forming GO-PEI-1.2k and GO-PEG-10k complexes, respectively, both of which are stable in physiological solutions. Cellular toxicity tests reveal that our GO-PEI-10k complex exhibits significantly reduced toxicity to the treated cells compared to the bare PEI-10k polymer. The positively charged GO-PEI complexes are able to further bind with plasmid DNA (pDNA) for intracellular transfection of the enhanced green fluorescence protein (EGFP) gene in HeLa cells. While EGFP transfection with PEI-1.2k appears to be ineffective, high EGFP expression is observed using the corresponding GO-PEI-1.2k as the transfection agent. On the other hand, GO-PEI-10k shows similar EGFP transfection efficiency but lower toxicity compared with PEI-10k. Our results suggest graphene to be a novel gene delivery nano-vector with low cytotoxicity and high transfection efficiency, promising for future applications in non-viral based gene therapy.Graphene as a star in materials research has been attracting tremendous attentions in the past few years in various fields including biomedicine. In this work, for the first time we successfully use graphene as a non-toxic nano-vehicle for efficient gene transfection. Graphene oxide (GO) is bound with cationic polymers, polyethyleneimine (PEI) with two different molecular weights at 1.2 kDa and 10 kDa, forming GO-PEI-1.2k and GO-PEG-10k complexes, respectively, both of which are stable in physiological solutions. Cellular toxicity tests reveal that our GO-PEI-10k complex exhibits significantly reduced toxicity to the treated cells compared to the bare PEI

  8. Home-based Healthcare Technology

    DEFF Research Database (Denmark)

    Verdezoto, Nervo

    of these systems target a specific treatment or condition and might not be sufficient to support the care management work at home. Based on a case study approach, my research investigates home-based healthcare practices and how they can inform future design of home-based healthcare technology that better account...

  9. Securing web-based exams

    NARCIS (Netherlands)

    Sessink, O.D.T.; Beeftink, H.H.; Tramper, J.; Hartog, R.J.M.

    2004-01-01

    Learning management systems may offer web-based exam facilities. Such facilities entail a higher risk to exams fraud than traditional paper-based exams. The article discusses security issues with web-based exams, and proposes precautionary measures to reduce the risks. A security model is presented

  10. Performance-Based Funding Brief

    Science.gov (United States)

    Washington Higher Education Coordinating Board, 2011

    2011-01-01

    A number of states have made progress in implementing performance-based funding (PFB) and accountability. This policy brief summarizes main features of performance-based funding systems in three states: Tennessee, Ohio, and Indiana. The brief also identifies key issues that states considering performance-based funding must address, as well as…

  11. Condition based spare parts supply

    NARCIS (Netherlands)

    Lin, X.; Basten, Robertus Johannes Ida; Kranenburg, A.A.; van Houtum, Geert-Jan

    2012-01-01

    We consider a spare parts stock point that serves an installed base of machines. Each machine contains the same critical component, whose degradation behavior is described by a Markov process. We consider condition based spare parts supply, and show that an optimal, condition based inventory policy

  12. Different perspectives on economic base.

    Science.gov (United States)

    Lisa K. Crone; Richard W. Haynes; Nicholas E. Reyna

    1999-01-01

    Two general approaches for measuring the economic base are discussed. Each method is used to define the economic base for each of the counties included in the Interior Columbia Basin Ecosystem Management Project area. A more detailed look at four selected counties results in similar findings from different approaches. Limitations of economic base analysis also are...

  13. Soy-based renoprotection

    Science.gov (United States)

    McGraw, Nancy J; Krul, Elaine S; Grunz-Borgmann, Elizabeth; Parrish, Alan R

    2016-01-01

    Chronic kidney disease (CKD) is a significant public health problem as risk factors such as advanced age, obesity, hypertension and diabetes rise in the global population. Currently there are no effective pharmacologic treatments for this disease. The role of diet is important for slowing the progression of CKD and managing symptoms in later stages of renal insufficiency. While low protein diets are generally recommended, maintaining adequate levels of intake is critical for health. There is an increasing appreciation that the source of protein may also be important. Soybean protein has been the most extensively studied plant-based protein in subjects with kidney disease and has demonstrated renal protective properties in a number of clinical studies. Soy protein consumption has been shown to slow the decline in estimated glomerular filtration rate and significantly improve proteinuria in diabetic and non-diabetic patients with nephropathy. Soy’s beneficial effects on renal function may also result from its impact on certain physiological risk factors for CKD such as dyslipidemia, hypertension and hyperglycemia. Soy intake is also associated with improvements in antioxidant status and systemic inflammation in early and late stage CKD patients. Studies conducted in animal models have helped to identify the underlying molecular mechanisms that may play a role in the positive effects of soy protein on renal parameters in polycystic kidney disease, metabolically-induced kidney dysfunction and age-associated progressive nephropathy. Despite the established relationship between soy and renoprotection, further studies are needed for a clear understanding of the role of the cellular and molecular target(s) of soy protein in maintaining renal function. PMID:27152261

  14. Telemetry-Based Ranging

    Science.gov (United States)

    Hamkins, Jon; Vilnrotter, Victor A.; Andrews, Kenneth S.; Shambayati, Shervin

    2011-01-01

    A telemetry-based ranging scheme was developed in which the downlink ranging signal is eliminated, and the range is computed directly from the downlink telemetry signal. This is the first Deep Space Network (DSN) ranging technology that does not require the spacecraft to transmit a separate ranging signal. By contrast, the evolutionary ranging techniques used over the years by NASA missions, including sequential ranging (transmission of a sequence of sinusoids) and PN-ranging (transmission of a pseudo-noise sequence) whether regenerative (spacecraft acquires, then regenerates and retransmits a noise-free ranging signal) or transparent (spacecraft feeds the noisy demodulated uplink ranging signal into the downlink phase modulator) relied on spacecraft power and bandwidth to transmit an explicit ranging signal. The state of the art in ranging is described in an emerging CCSDS (Consultative Committee for Space Data Systems) standard, in which a pseudo-noise (PN) sequence is transmitted from the ground to the spacecraft, acquired onboard, and the PN sequence is coherently retransmitted back to the ground, where a delay measurement is made between the uplink and downlink signals. In this work, the telemetry signal is aligned with the uplink PN code epoch. The ground station computes the delay between the uplink signal transmission and the received downlink telemetry. Such a computation is feasible because symbol synchronizability is already an integral part of the telemetry design. Under existing technology, the telemetry signal cannot be used for ranging because its arrival-time information is not coherent with any Earth reference signal. By introducing this coherence, and performing joint telemetry detection and arrival-time estimation on the ground, a high-rate telemetry signal can provide all the precision necessary for spacecraft ranging.

  15. Evidence-based dentistry.

    Science.gov (United States)

    Chambers, David W

    2010-01-01

    Both panegyric and criticism of evidence-based dentistry tend to be clumsy because the concept is poorly defined. This analysis identifies several contributions to the profession that have been made under the EBD banner. Although the concept of clinicians integrating clinical epidemiology, the wisdom of their practices, and patients' values is powerful, its implementation has been distorted by a too heavy emphasis of computerized searches for research findings that meet the standards of academics. Although EBD advocates enjoy sharing anecdotal accounts of mistakes others have made, faulting others is not proof that one's own position is correct. There is no systematic, high-quality evidence that EBD is effective. The metaphor of a three-legged stool (evidence, experience, values, and integration) is used as an organizing principle. "Best evidence" has become a preoccupation among EBD enthusiasts. That overlong but thinly developed leg of the stool is critiqued from the perspectives of the criteria for evidence, the difference between internal and external validity, the relationship between evidence and decision making, the ambiguous meaning of "best," and the role of reasonable doubt. The strongest leg of the stool is clinical experience. Although bias exists in all observations (including searches for evidence), there are simple procedures that can be employed in practice to increase useful and objective evidence there, and there are dangers in delegating policy regarding allowable treatments to external groups. Patient and practitioner values are the shortest leg of the stool. As they are so little recognized, their integration in EBD is problematic and ethical tensions exist where paternalism privileges science over patient's self-determined best interests. Four potential approaches to integration are suggested, recognizing that there is virtually no literature on how the "seat" of the three-legged stool works or should work. It is likely that most dentists

  16. Workplace Based Assessment in Psychiatry

    Directory of Open Access Journals (Sweden)

    Ayse Devrim Basterzi

    2009-11-01

    Full Text Available Workplace based assessment refers to the assessment of working practices based on what doctors actually do in the workplace, and is predominantly carried out in the workplace itself. Assessment drives learning and it is therefore essential that workplace-based assessment focuses on important attributes rather than what is easiest to assess. Workplacebased assessment is usually competency based. Workplace based assesments may well facilitate and enhance various aspects of educational supervisions, including its structure, frequency and duration etc. The structure and content of workplace based assesments should be monitored to ensure that its benefits are maximised by remaining tailored to individual trainees' needs. Workplace based assesment should be used for formative and summative assessments. Several formative assessment methods have been developed for use in the workplace such as mini clinical evaluation exercise (mini-cex, evidence based journal club assesment and case based discussion, multi source feedback etc. This review discusses the need of workplace based assesments in psychiatry graduate education and introduces some of the work place based assesment methods.

  17. Leveraging Evidence-Based Practice through Partnerships Based on Practice-Based Evidence

    Science.gov (United States)

    Cook, Bryan G.; Cook, Lysandra

    2016-01-01

    Evidence-based practice is among the most influential and compelling reforms in contemporary education. Despite their potential to improve the outcomes of students with disabilities, adoption and implementation of evidence-based reforms have been disappointing, with the gap between research and practice remaining wide. Practice-based evidence…

  18. Case-based reasoning: The marriage of knowledge base and data base

    Science.gov (United States)

    Pulaski, Kirt; Casadaban, Cyprian

    1988-01-01

    The coupling of data and knowledge has a synergistic effect when building an intelligent data base. The goal is to integrate the data and knowledge almost to the point of indistinguishability, permitting them to be used interchangeably. Examples given in this paper suggest that Case-Based Reasoning is a more integrated way to link data and knowledge than pure rule-based reasoning.

  19. Knowledge base verification based on enhanced colored petri net

    Energy Technology Data Exchange (ETDEWEB)

    Kim, Jong Hyun; Seong, Poong Hyun [Korea Advanced Institute of Science and Technology, Taejon (Korea, Republic of)

    1997-12-31

    Verification is a process aimed at demonstrating whether a system meets it`s specified requirements. As expert systems are used in various applications, the knowledge base verification of systems takes an important position. The conventional Petri net approach that has been studied recently in order to verify the knowledge base is found that it is inadequate to verify the knowledge base of large and complex system, such as alarm processing system of nuclear power plant. Thus, we propose an improved method that models the knowledge base as enhanced colored Petri net. In this study, we analyze the reachability and the error characteristics of the knowledge base and apply the method to verification of simple knowledge base. 8 refs., 4 figs. (Author)

  20. XML-Based SHINE Knowledge Base Interchange Language

    Science.gov (United States)

    James, Mark; Mackey, Ryan; Tikidjian, Raffi

    2008-01-01

    The SHINE Knowledge Base Interchange Language software has been designed to more efficiently send new knowledge bases to spacecraft that have been embedded with the Spacecraft Health Inference Engine (SHINE) tool. The intention of the behavioral model is to capture most of the information generally associated with a spacecraft functional model, while specifically addressing the needs of execution within SHINE and Livingstone. As such, it has some constructs that are based on one or the other.

  1. Acids and bases solvent effects on acid-base strenght

    CERN Document Server

    Cox, Brian G

    2013-01-01

    Acids and bases are ubiquitous in chemistry. Our understanding of them, however, is dominated by their behaviour in water. Transfer to non-aqueous solvents leads to profound changes in acid-base strengths and to the rates and equilibria of many processes: for example, synthetic reactions involving acids, bases and nucleophiles; isolation of pharmaceutical actives through salt formation; formation of zwitter- ions in amino acids; and chromatographic separation of substrates. This book seeks to enhance our understanding of acids and bases by reviewing and analysing their behaviour in non-aqueous solvents. The behaviour is related where possible to that in water, but correlations and contrasts between solvents are also presented.

  2. Sub-Critical Closed String Field Theory in D Less Than 26

    OpenAIRE

    Kaku, Michio

    1993-01-01

    We construct the second quantized action for sub-critical closed string field theory with zero cosmological constant in dimensions $ 2 \\leq D < 26$, generalizing the non-polynomial closed string field theory action proposed by the author and the Kyoto and MIT groups for $D = 26$. The proof of gauge invariance is considerably complicated by the presence of the Liouville field $\\phi$ and the non-polynomial nature of the action. However, we explicitly show that the polyhedral vertex functions ob...

  3. Aperiodic-metamaterial-based absorber

    Directory of Open Access Journals (Sweden)

    Quanlong Yang

    2017-09-01

    Full Text Available The periodic-metamaterial-based perfect absorber has been studied broadly. Conversely, if the unit cell in the metamaterial-based absorber is arranged aperiodically (aperiodic-metamaterial-based absorber, how does it perform? Inspired by this, here we present a systematic study of the aperiodic-metamaterial-based absorber. By investigating the response of metamaterial absorbers based on periodic, Fibonacci, Thue-Morse, and quasicrystal lattices, we found that aperiodic-metamaterial-based absorbers could display similar absorption behaviors as the periodic one in one hand. However, their absorption behaviors show different tendency depending on the thicknesses of the spacer. Further studies on the angle and polarization dependence of the absorption behavior are also presented.

  4. Event-Based Conceptual Modeling

    DEFF Research Database (Denmark)

    Bækgaard, Lars

    The paper demonstrates that a wide variety of event-based modeling approaches are based on special cases of the same general event concept, and that the general event concept can be used to unify the otherwise unrelated fields of information modeling and process modeling. A set of event-based mod......The paper demonstrates that a wide variety of event-based modeling approaches are based on special cases of the same general event concept, and that the general event concept can be used to unify the otherwise unrelated fields of information modeling and process modeling. A set of event......-based modeling approaches are analyzed and the results are used to formulate a general event concept that can be used for unifying the seemingly unrelated event concepts. Events are characterized as short-duration processes that have participants, consequences, and properties, and that may be modeled in terms...

  5. On Pimsner–Popa bases

    Indian Academy of Sciences (India)

    been mentioned for the Case of II1 factors in Lemma 4.3.4 (i) of [7] , but the proof there seems incomplete. Our characterization of bases now clarifies this point, and also shows that bases behave in a nice way with respect to the Jones' tower. As an application we show in §3.1 how the use of bases leads to a natural proof of.

  6. Principles of models based engineering

    Energy Technology Data Exchange (ETDEWEB)

    Dolin, R.M.; Hefele, J.

    1996-11-01

    This report describes a Models Based Engineering (MBE) philosophy and implementation strategy that has been developed at Los Alamos National Laboratory`s Center for Advanced Engineering Technology. A major theme in this discussion is that models based engineering is an information management technology enabling the development of information driven engineering. Unlike other information management technologies, models based engineering encompasses the breadth of engineering information, from design intent through product definition to consumer application.

  7. Estimating North Dakota's Economic Base

    OpenAIRE

    Coon, Randal C.; Leistritz, F. Larry

    2009-01-01

    North Dakota’s economic base is comprised of those activities producing a product paid for by nonresidents, or products exported from the state. North Dakota’s economic base activities include agriculture, mining, manufacturing, tourism, and federal government payments for construction and to individuals. Development of the North Dakota economic base data is important because it provides the information to quantify the state’s economic growth, and it creates the final demand sectors for the N...

  8. Image based Monument Recognition using Graph based Visual Saliency

    DEFF Research Database (Denmark)

    Kalliatakis, Grigorios; Triantafyllidis, Georgios

    2013-01-01

    This article presents an image-based application aiming at simple image classification of well-known monuments in the area of Heraklion, Crete, Greece. This classification takes place by utilizing Graph Based Visual Saliency (GBVS) and employing Scale Invariant Feature Transform (SIFT) or Speeded...

  9. Brain-Based Learning and Standards-Based Elementary Science.

    Science.gov (United States)

    Konecki, Loretta R.; Schiller, Ellen

    This paper explains how brain-based learning has become an area of interest to elementary school science teachers, focusing on the possible relationships between, and implications of, research on brain-based learning to the teaching of science education standards. After describing research on the brain, the paper looks at three implications from…

  10. Pyrone-based Cu (II) complexes, their characterization, DFT based ...

    Indian Academy of Sciences (India)

    Abstract. This work deals with the synthesis and characterization of a series of three -Dehydroacetic acid- 4-phenyl-3-thiosemicarbazide (H2dha-ptsc) Schiff base Cu(II) complexes based on combined experimental and theoretical approach, having the general composition formula as [Cu(dha-ptsc)(L-L)], where L-L is H2O, ...

  11. Managing the Gap between Curriculum Based and Problem Based Learning

    DEFF Research Database (Denmark)

    Bygholm, Ann; Buus, Lillian

    2009-01-01

    /or but rather both/and. In this paper we describe an approach to design and delivery of online courses in computer science which on the one hand is based on a specified curriculum and on the other hand gives room for different learning strategies, problem based learning being one of them. We discuss...

  12. Comparison of sequence-based and structure-based phylogenetic ...

    Indian Academy of Sciences (India)

    Prakash

    pairs of proteins which are inputs into the construction of phylogenetic trees. We find that correlation between the structure-based dissimilarity measures and the sequence-based dissimilarity measures is usually good if the sequence similarity among the homologues is about 30% or more. For protein families with low ...

  13. Capability-based computer systems

    CERN Document Server

    Levy, Henry M

    2014-01-01

    Capability-Based Computer Systems focuses on computer programs and their capabilities. The text first elaborates capability- and object-based system concepts, including capability-based systems, object-based approach, and summary. The book then describes early descriptor architectures and explains the Burroughs B5000, Rice University Computer, and Basic Language Machine. The text also focuses on early capability architectures. Dennis and Van Horn's Supervisor; CAL-TSS System; MIT PDP-1 Timesharing System; and Chicago Magic Number Machine are discussed. The book then describes Plessey System 25

  14. New Mexico Geothermal Data Base

    International Nuclear Information System (INIS)

    Witcher, J.C.; Whittier, J.; Morgan, R.

    1990-01-01

    This paper reports on the New Mexico Geothermal Data Base (NMGDB) which is a comprehensive public-domain data base of low-temperature geothermal resource information for New Mexico that is designed to assist researchers and developers. A broad range of geoscience, engineering, climatic, economic, and land status information are complied in the dBASE III PLUS data base management system for use on an IBM or IBM-compatible personal computer. A user friendly menu format with on-screen prompts allows easy and convenient use

  15. Fatigue data bases in Europe

    International Nuclear Information System (INIS)

    Olivier, R.; Koettgen, V.B.; Seeger, T.; Boller, C.

    1988-01-01

    Based on an inquiry with well-known European fatigue institutions the paper describes existing more or less extensive collections and data bases of S-N and crack growth data, mainly on unwelded and welded steel and aluminium in organizations and countries as follows: CEC, ESA, Federal Republic of Germany, GDR, Italy, Norway, Republic of Ireland, Switzerland, UK. This documentation of the present state is completed by a short survey on available European fatigue standards and design rules, serving as a data base for nominal materials data. Requirements for data base concepts, contents, user interface and data structure are presented in a short overview. (orig./HP)

  16. Burst-Mode Asynchronous Controllers on FPGA

    Directory of Open Access Journals (Sweden)

    Duarte L. Oliveira

    2008-01-01

    Full Text Available FPGAs have been mainly used to design synchronous circuits. Asynchronous design on FPGAs is difficult because the resulting circuit may suffer from hazard problems. We propose a method that implements a popular class of asynchronous circuits, known as burst mode, on FPGAs based on look-up table architectures. We present two conditions that, if satisfied, guarantee essential hazard-free implementation on any LUT-based FPGA. By doing that, besides all the intrinsic advantages of asynchronous over synchronous circuits, they also take advantage of the shorter design time and lower cost associated with FPGA designs.

  17. Lower urinary tract symptoms in Parkinson's disease: Prevalence, aetiology and management.

    Science.gov (United States)

    McDonald, Claire; Winge, Kristian; Burn, David J

    2017-02-01

    Lower urinary tract symptoms (LUTS) are common in Parkinson's disease (PD), effecting 27-85% of patients with PD. Irritative symptoms predominate and urodynamic studies confirm high prevalence of detrusor overactivity in PD. LUTS are present early in PD and are more common in PD than in age matched controls. The assessment of LUTS in PD is complicated by coexisting bradykinesia and cognitive impairment. Although LUTS become more troublesome as PD progresses it remains unclear if LUTS severity correlates with motor symptoms and/or duration of PD. The underlying cause of LUTS in PD remains to be fully elucidated. Animal and human studies suggest the net effect of the basal ganglia is to supress micturition. Although LUTS are a common in PD, few studies have examined the assessment and management of LUTS specifically in patients with PD. Pilot studies have suggested that bladder training, antimuscarinic drugs and intravesical botulinum toxin maybe helpful but these trials have been small and frequently lacked a suitable control group making them vulnerable to the placebo effect. Furthermore the adverse effects of antimuscarinic drugs on cognitive and gastrointestinal function may limit the use of these drugs in PD. In this review we summarise the literature describing the prevalence of LUTS in PD, discuss the emerging data delineating the underlying pathophysiology of LUTS and examine interventions helpful in the management of LUTS in people with PD. Copyright © 2016. Published by Elsevier Ltd.

  18. Methods in Logic Based Control

    DEFF Research Database (Denmark)

    Christensen, Georg Kronborg

    1999-01-01

    Desing and theory of Logic Based Control systems.Boolean Algebra, Karnaugh Map, Quine McClusky's algorithm. Sequential control design. Logic Based Control Method, Cascade Control Method. Implementation techniques: relay, pneumatic, TTL/CMOS,PAL and PLC- and Soft_PLC implementation. PLC...

  19. Component Based Testing with ioco

    NARCIS (Netherlands)

    van der Bijl, H.M.; Rensink, Arend; Tretmans, G.J.

    Component based testing concerns the integration of components which have already been tested separately. We show that, with certain restrictions, the ioco-test theory for conformance testing is suitable for component based testing, in the sense that the integration of fully conformant components is

  20. Theory-Based Stakeholder Evaluation

    Science.gov (United States)

    Hansen, Morten Balle; Vedung, Evert

    2010-01-01

    This article introduces a new approach to program theory evaluation called theory-based stakeholder evaluation or the TSE model for short. Most theory-based approaches are program theory driven and some are stakeholder oriented as well. Practically, all of the latter fuse the program perceptions of the various stakeholder groups into one unitary…

  1. Forest biomass-based energy

    Science.gov (United States)

    Janaki R. R. Alavalapati; Pankaj Lal; Andres Susaeta; Robert C. Abt; David N. Wear

    2013-01-01

    Key FindingsHarvesting woody biomass for use as bioenergy is projected to range from 170 million to 336 million green tons by 2050, an increase of 54 to 113 percent over current levels.Consumption projections for forest biomass-based energy, which are based on Energy Information Administration projections, have a high level of...

  2. Defining Nature-Based Preschools

    Science.gov (United States)

    Larimore, Rachel

    2016-01-01

    Nature-based early childhood education. Nature-based preschool. Nature preschool. Forest kindergarten. Nature kindergarten. Waldkindergarten. Forest school. These are a few of the program terms currently being discussed among early childhood environmental education professionals in the United States. Why is there so much discussion about the names…

  3. Cloud-Based Data Storage

    Science.gov (United States)

    Waters, John K.

    2011-01-01

    The vulnerability and inefficiency of backing up data on-site is prompting school districts to switch to more secure, less troublesome cloud-based options. District auditors are pushing for a better way to back up their data than the on-site, tape-based system that had been used for years. About three years ago, Hendrick School District in…

  4. Plasma-based accelerator structures

    International Nuclear Information System (INIS)

    Schroeder, Carl B.

    1999-01-01

    Plasma-based accelerators have the ability to sustain extremely large accelerating gradients, with possible high-energy physics applications. This dissertation further develops the theory of plasma-based accelerators by addressing three topics: the performance of a hollow plasma channel as an accelerating structure, the generation of ultrashort electron bunches, and the propagation of laser pulses is underdense plasmas

  5. Dimensions of problem based learning

    DEFF Research Database (Denmark)

    Nielsen, Jørgen Lerche; Andreasen, Lars Birch

    2013-01-01

    The article contributes to the literature on problem based learning and problem-oriented project work, building on and reflecting the experiences of the authors through decades of work with problem-oriented project pedagogy. The article explores different dimensions of problem based learning such...

  6. Dog Mathematics: Exploring Base-4

    Science.gov (United States)

    Kurz, Terri L.; Yanik, H. Bahadir; Lee, Mi Yeon

    2016-01-01

    Using a dog's paw as a basis for numerical representation, sixth grade students explored how to count and regroup using the dog's four digital pads. Teachers can connect these base-4 explorations to the conceptual meaning of place value and regrouping using base-10.

  7. Evidence-based playground design

    DEFF Research Database (Denmark)

    Refshauge, Anne Dahl; Stigsdotter, Ulrika K.; Lamm, Bettina

    2015-01-01

    opportunities for play, nature exploration and sensory stimulation. As it is increasingly expected that designers base their decisions on research evidence, there is a need to develop approaches to facilitate this, which also applies to playground design. The design of PlayLab Cph was based on relevant evidence...

  8. The flavonoid luteolin enhances doxorubicin-induced autophagy in human osteosarcoma U2OS cells.

    Science.gov (United States)

    Zhang, Baoliang; Yu, Xin; Xia, Hong

    2015-01-01

    Luteolin (LUT), a flavone, which is universally present as constituent of medicinal plants as well as some vegetables and spices, has been demonstrated display specific anti-carcinogenic effects. However, the mechanisms by which LUT inhibits human osteosarcoma growth remain unknown. The effects of LUT on cell growth in human osteosarcoma U2OS cells were measured by MTT assay and flowcytometry. The effects of LUT on morphological markers of autophagy in U2OS were analyzed by fluorescence microscopy and electron microscopy. Autophagic markers, beclin1 and LC3 were detected by western blotting. Here, we found that LUT induced autophagy in U2OS and acted as an enhancer to sensitize doxorubicin (DOX)-mediated autophagy signaling. The combined treatment of LUT and DOX greatly decreases the growth of U2OS, showing synergistic cytotoxicity. Our results indicate that LUT in combination with DOX maybe a novel strategy for the treatment of human osteosarcoma.

  9. Power Reactor Embrittlement Data Base

    International Nuclear Information System (INIS)

    Kam, F.B.K.; Stallmann, F.W.; Wang, J.A.

    1990-01-01

    Regulatory and research evaluations of embrittlement predication models and of pressure vessel integrity can be greatly expedited by the use of a well-designed, computerized data base. The Power Reactor Embrittlement Data Base (PR-EDB) is such a comprehensive collection of data for US commercial nuclear reactors. The Nuclear Regulatory Commission (NRC) has provided financial support, and the Electric Power Research Institute (EPRI) has provided technical assistance in the quality assurance (QA) of the data to establish an industry-wide data base that will be maintained and updated on a long-term basis. Successful applications of the data base to several of NRC's evaluations have received favorable response and support for its continuation. The future direction of the data base has been designed to include the test reactor and other types of data of interest to the regulators and the researchers. 1 ref

  10. The knowledge base of journalism

    DEFF Research Database (Denmark)

    Svith, Flemming

    In this paper I propose the knowledge base as a fruitful way to apprehend journalism. With the claim that the majority of practice is anchored in knowledge – understood as 9 categories of rationales, forms and levels – this knowledge base appears as a contextual look at journalists’ knowledge....... It is an analytical framework to delineate what is special in journalists’ knowledge. While the base is referred to in singular, it makes good sense to talk about journalistic knowledge in plural, because of the variation in the categories’ specific content and significance. This depends on the field position, time......, and place. As an analytical framework, the knowledge base is limited to understand the practice of newspaper journalists, but, conversely, the knowledge base encompasses more general beginnings through the inclusion of overall structural relationships in the media and journalism and general theories...

  11. Content-Based Image Retrial Based on Hadoop

    Directory of Open Access Journals (Sweden)

    DongSheng Yin

    2013-01-01

    Full Text Available Generally, time complexity of algorithms for content-based image retrial is extremely high. In order to retrieve images on large-scale databases efficiently, a new way for retrieving based on Hadoop distributed framework is proposed. Firstly, a database of images features is built by using Speeded Up Robust Features algorithm and Locality-Sensitive Hashing and then perform the search on Hadoop platform in a parallel way specially designed. Considerable experimental results show that it is able to retrieve images based on content on large-scale cluster and image sets effectively.

  12. Value-based metrics and Internet-based enterprises

    Science.gov (United States)

    Gupta, Krishan M.

    2001-10-01

    Within the last few years, a host of value-based metrics like EVA, MVA, TBR, CFORI, and TSR have evolved. This paper attempts to analyze the validity and applicability of EVA and Balanced Scorecard for Internet based organizations. Despite the collapse of the dot-com model, the firms engaged in e- commerce continue to struggle to find new ways to account for customer-base, technology, employees, knowledge, etc, as part of the value of the firm. While some metrics, like the Balance Scorecard are geared towards internal use, others like EVA are for external use. Value-based metrics are used for performing internal audits as well as comparing firms against one another; and can also be effectively utilized by individuals outside the firm looking to determine if the firm is creating value for its stakeholders.

  13. Object-based media and stream-based computing

    Science.gov (United States)

    Bove, V. Michael, Jr.

    1998-03-01

    Object-based media refers to the representation of audiovisual information as a collection of objects - the result of scene-analysis algorithms - and a script describing how they are to be rendered for display. Such multimedia presentations can adapt to viewing circumstances as well as to viewer preferences and behavior, and can provide a richer link between content creator and consumer. With faster networks and processors, such ideas become applicable to live interpersonal communications as well, creating a more natural and productive alternative to traditional videoconferencing. In this paper is outlined an example of object-based media algorithms and applications developed by my group, and present new hardware architectures and software methods that we have developed to enable meeting the computational requirements of object- based and other advanced media representations. In particular we describe stream-based processing, which enables automatic run-time parallelization of multidimensional signal processing tasks even given heterogenous computational resources.

  14. SB certification for mixture-based specification for flexible base.

    Science.gov (United States)

    2012-10-01

    Presentation topics: : Establish List of Qualified Producers; : Producers Responsible for Process Control/Quality Control; : Reduce TxDOT Sampling and Testing; : Expedite Aggregate Base Acceptance; : Share Responsibility (Producer/TxDOT) for Quality ...

  15. Designing Android Based Augmented Reality Location-Based Service Application

    Directory of Open Access Journals (Sweden)

    Alim Hardiansyah

    2018-01-01

    Full Text Available Android is an operating system for Linux based smartphone. Android provides an open platform for the developers to create their own application. The most developed and used application now is location based application. This application gives personalization service for mobile device user and is customized to their location. Location based service also gives an opportunity for the developers to develop and increase the value of service. One of the technologies that could be combined with location based application is augmented reality. Augmented reality combines the virtual world with the real one. By the assistance of augmented reality, our surrounding environment could interact in digital form. Information of objects and environment surround us could be added to the augmented reality system and presented. Based on the background, the writers tried to implement those technologies on now rapidly developing android application as a final project to achieve bachelor degree in Department of Informatics Engineering, Faculty of Information Technology and Visual Communication, Al Kamal Science and Technology Institute. This application could be functioned to locate school by using location based service technology with the assistance of navigational applications such as waze and google maps, in form of live direction process through the smartphone

  16. WPS criterion proposition based on experimental data base interpretation

    International Nuclear Information System (INIS)

    Chapuliot, S.; Izard, J.P.; Moinereau, D.; Marie, S.

    2011-01-01

    This article gives the background and the methodology developed to define a K J based criterion for brittle fracture of Reactor Pressure Vessel (RPV) submitted to Pressurized Thermal Shock (PTS), and taking into account Warm Pre Stressing effect (WPS). The first step of this methodology is the constitution of an experimental data base. This work was performed through bibliography and partnerships, and allows merging experimental results dealing with: -) Various ferritic steels; -) Various material states (as received, thermally aged, irradiated...); -) Various mode of fracture (cleavage, inter-granular, mixed mode); -) Various specimen geometry and size (CT, SENB, mock-ups); -) Various thermo-mechanical transients. Based on this experimental data base, a simple K J based limit is proposed and compared to experimental results. Parametric studies are performed in order to define the main parameters of the problem. Finally, a simple proposition based on a detailed analysis of tests results is performed. This proposition giving satisfactory results in every cases, it constitutes a good candidate for integration in French RSE-M code for in service assessment. (authors)

  17. Prescription rate of medications potentially contributing to lower urinary tract symptoms and detection of adverse reactions by prescription sequence symmetry analysis.

    Science.gov (United States)

    Hashimoto, Masako; Hashimoto, Kanako; Ando, Fumihiko; Kimura, Yoshiaki; Nagase, Keisuke; Arai, Kunizo

    2015-01-01

    The lower urinary tract symptoms (LUTS) increases with age and can have a significant effect on the quality of life of the patients. Elderly patients, who are often characterized by a decline in physiological functional and polypharmacy, are susceptible to adverse drug reactions to pharmacotherapy. LUTS can also be a side effect of medication. The purpose of this study was to investigate the possible association between the initiation of LUTS-causing drug therapy and the onset of LUTS. Drug dispensing data at the individual level were retrieved from the CISA (Platform for Clinical Information Statistical Analysis: http://www.cisa.jp) database. A retrospective study was conducted by reviewing patients with LUTS who were dispensed drugs that increased the risk of LUTS between April 2011 and March 2012. Prescription sequence symmetry analysis (PSSA) was employed to investigate the associations between the dispensing of medicines of LUTS and that of LUTS-causing drugs. LUTS-causing drugs were frequently dispensed to patients with LUTS. The use of medications potentially contributing to LUTS was associated with polypharmacy [number of prescription drugs:12.13 ± 6.78 (user) vs. 5.67 ± 5.24 (nonuser)] but not patient age [ age: (71.38 ± 13.28 (user) vs. 70.45 ± 14.80 (nonuser)]. Significant adverse drug events were observed the use of donepezil, cyclophosphamide, antiparkinson drugs, antidepressant, diazepam, antipsychotic drugs for peptic ulcer, tiotropium bromide, and opioids. The use of prescription LUTS-causing drugs was correlated with polypharmacy. The adverse drug events associated with LUTS-causing drugs were highly prevalent in elderly patients. To prevent of adverse drug events in patients with LUTS, pharmacists and physicians should regularly review medication lists and reduce the prescribed medicines.

  18. Home-based versus centre-based cardiac rehabilitation.

    Science.gov (United States)

    Anderson, Lindsey; Sharp, Georgina A; Norton, Rebecca J; Dalal, Hasnain; Dean, Sarah G; Jolly, Kate; Cowie, Aynsley; Zawada, Anna; Taylor, Rod S

    2017-06-30

    Cardiovascular disease is the most common cause of death globally. Traditionally, centre-based cardiac rehabilitation programmes are offered to individuals after cardiac events to aid recovery and prevent further cardiac illness. Home-based cardiac rehabilitation programmes have been introduced in an attempt to widen access and participation. This is an update of a review previously published in 2009 and 2015. To compare the effect of home-based and supervised centre-based cardiac rehabilitation on mortality and morbidity, exercise-capacity, health-related quality of life, and modifiable cardiac risk factors in patients with heart disease. We updated searches from the previous Cochrane Review by searching the Cochrane Central Register of Controlled Trials (CENTRAL), MEDLINE (Ovid), Embase (Ovid), PsycINFO (Ovid) and CINAHL (EBSCO) on 21 September 2016. We also searched two clinical trials registers as well as previous systematic reviews and reference lists of included studies. No language restrictions were applied. We included randomised controlled trials, including parallel group, cross-over or quasi-randomised designs) that compared centre-based cardiac rehabilitation (e.g. hospital, gymnasium, sports centre) with home-based programmes in adults with myocardial infarction, angina, heart failure or who had undergone revascularisation. Two review authors independently screened all identified references for inclusion based on pre-defined inclusion criteria. Disagreements were resolved through discussion or by involving a third review author. Two authors independently extracted outcome data and study characteristics and assessed risk of bias. Quality of evidence was assessed using GRADE principles and a Summary of findings table was created. We included six new studies (624 participants) for this update, which now includes a total of 23 trials that randomised a total of 2890 participants undergoing cardiac rehabilitation. Participants had an acute myocardial

  19. Eye-based head gestures

    DEFF Research Database (Denmark)

    Mardanbegi, Diako; Witzner Hansen, Dan; Pederson, Thomas

    2012-01-01

    A novel method for video-based head gesture recognition using eye information by an eye tracker has been proposed. The method uses a combination of gaze and eye movement to infer head gestures. Compared to other gesture-based methods a major advantage of the method is that the user keeps the gaze...... on the interaction object while interacting. This method has been implemented on a head-mounted eye tracker for detecting a set of predefined head gestures. The accuracy of the gesture classifier is evaluated and verified for gaze-based interaction in applications intended for both large public displays and small...

  20. Solar based hydrogen production systems

    CERN Document Server

    Dincer, Ibrahim

    2013-01-01

    This book provides a comprehensive analysis of various solar based hydrogen production systems. The book covers first-law (energy based) and second-law (exergy based) efficiencies and provides a comprehensive understanding of their implications. It will help minimize the widespread misuse of efficiencies among students and researchers in energy field by using an intuitive and unified approach for defining efficiencies. The book gives a clear understanding of the sustainability and environmental impact analysis of the above systems. The book will be particularly useful for a clear understanding

  1. Wavelength conversion based spectral imaging

    DEFF Research Database (Denmark)

    Dam, Jeppe Seidelin

    There has been a strong, application driven development of Si-based cameras and spectrometers for imaging and spectral analysis of light in the visible and near infrared spectral range. This has resulted in very efficient devices, with high quantum efficiency, good signal to noise ratio and high...... resolution for this spectral region. Today, an increasing number of applications exists outside the spectral region covered by Si-based devices, e.g. within cleantech, medical or food imaging. We present a technology based on wavelength conversion which will extend the spectral coverage of state of the art...... visible or near infrared cameras and spectrometers to include other spectral regions of interest....

  2. Reconsidering Community-based Retailing

    OpenAIRE

    Maughan, Rebecca; O'Driscoll, Aidan

    2012-01-01

    One of the areas with great potential for economic, social and environmental benefit is community-based retailing. The concept of community based retailing can incorporate a number of different tenets. We suggest that it is retailing that is based close to the community it serves, usually within the town or village centre rather than out-of-town locations, and which is composed of a diverse range of small and medium sized business that are often independently or co-operatively owned. These co...

  3. Mitochondrial base excision repair assays

    DEFF Research Database (Denmark)

    Maynard, Scott; de Souza-Pinto, Nadja C; Scheibye-Knudsen, Morten

    2010-01-01

    The main source of mitochondrial DNA (mtDNA) damage is reactive oxygen species (ROS) generated during normal cellular metabolism. The main mtDNA lesions generated by ROS are base modifications, such as the ubiquitous 8-oxoguanine (8-oxoG) lesion; however, base loss and strand breaks may also occur....... Many human diseases are associated with mtDNA mutations and thus maintaining mtDNA integrity is critical. All of these lesions are repaired primarily by the base excision repair (BER) pathway. It is now known that mammalian mitochondria have BER, which, similarly to nuclear BER, is catalyzed by DNA...

  4. Oil-based paint poisoning

    Science.gov (United States)

    Paint - oil-based - poisoning ... Hydrocarbons are the primary poisonous ingredient in oil paints. Some oil paints have heavy metals such as lead, mercury, cobalt, and barium added as pigment. These heavy metals can cause additional ...

  5. Imprinted silicon-based nanophotonics

    DEFF Research Database (Denmark)

    Borel, Peter Ingo; Olsen, Brian Bilenberg; Frandsen, Lars Hagedorn

    2007-01-01

    We demonstrate and optically characterize silicon-on-insulator based nanophotonic devices fabricated by nanoimprint lithography. In our demonstration, we have realized ordinary and topology-optimized photonic crystal waveguide structures. The topology-optimized structures require lateral pattern...

  6. Querying Natural Logic Knowledge Bases

    DEFF Research Database (Denmark)

    Andreasen, Troels; Bulskov, Henrik; Jensen, Per Anker

    2017-01-01

    This paper describes the principles of a system applying natural logic as a knowledge base language. Natural logics are regimented fragments of natural language employing high level inference rules. We advocate the use of natural logic for knowledge bases dealing with querying of classes in ontol......This paper describes the principles of a system applying natural logic as a knowledge base language. Natural logics are regimented fragments of natural language employing high level inference rules. We advocate the use of natural logic for knowledge bases dealing with querying of classes...... in ontologies and class-relationships such as are common in life-science descriptions. The paper adopts a version of natural logic with recursive restrictive clauses such as relative clauses and adnominal prepositional phrases. It includes passive as well as active voice sentences. We outline a prototype...

  7. SAT-Based Software Certification

    National Research Council Canada - National Science Library

    Chaki, Sagar

    2006-01-01

    ... predicate abstraction and validated by generating and proving verification conditions. In addition, the first part of the report proposes the use of theorem provers based on Boolean propositional satisfiability (SAT...

  8. Chip-based droplet sorting

    Energy Technology Data Exchange (ETDEWEB)

    Beer, Neil Reginald; Lee, Abraham; Hatch, Andrew

    2017-11-21

    A non-contact system for sorting monodisperse water-in-oil emulsion droplets in a microfluidic device based on the droplet's contents and their interaction with an applied electromagnetic field or by identification and sorting.

  9. Chip-based droplet sorting

    Science.gov (United States)

    Beer, Neil Reginald; Lee, Abraham; Hatch, Andrew

    2014-07-01

    A non-contact system for sorting monodisperse water-in-oil emulsion droplets in a microfluidic device based on the droplet's contents and their interaction with an applied electromagnetic field or by identification and sorting.

  10. Graph Model Based Indoor Tracking

    DEFF Research Database (Denmark)

    Jensen, Christian Søndergaard; Lu, Hua; Yang, Bin

    2009-01-01

    The tracking of the locations of moving objects in large indoor spaces is important, as it enables a range of applications related to, e.g., security and indoor navigation and guidance. This paper presents a graph model based approach to indoor tracking that offers a uniform data management...... infrastructure for different symbolic positioning technologies, e.g., Bluetooth and RFID. More specifically, the paper proposes a model of indoor space that comprises a base graph and mappings that represent the topology of indoor space at different levels. The resulting model can be used for one or several...... indoor positioning technologies. Focusing on RFID-based positioning, an RFID specific reader deployment graph model is built from the base graph model. This model is then used in several algorithms for constructing and refining trajectories from raw RFID readings. Empirical studies with implementations...

  11. Base Flood Elevation (BFE) Lines

    Data.gov (United States)

    Department of Homeland Security — The Base Flood Elevation (BFE) table is required for any digital data where BFE lines will be shown on the corresponding Flood Insurance Rate Map (FIRM). Normally if...

  12. Hospital Value-Based Purchasing

    Data.gov (United States)

    U.S. Department of Health & Human Services — Hospital Value-Based Purchasing (VBP) is part of the Centers for Medicare and Medicaid Services (CMS) long-standing effort to link Medicares payment system to a...

  13. Random Decrement Based FRF Estimation

    DEFF Research Database (Denmark)

    Brincker, Rune; Asmussen, J. C.

    The problem of estimating frequency response functions and extracting modal parameters is the topic of this paper. A new method based on the Random Decrement technique combined with Fourier transformation and the traditional pure Fourier transformation based approach is compared with regard...... to speed and quality. The basis of the new method is the Fourier transformation of the Random Decrement functions which can be used to estimate the frequency response functions. The investigations are based on load and response measurements of a laboratory model of a 3 span bridge. By applying both methods...... to these measurements the estimation time of the frequency response functions can be compared. The modal parameters estimated by the methods are compared. It is expected that the Random Decrement technique is faster than the traditional method based on pure Fourier Transformations. This is due to the fact...

  14. Industry Based Survey (IBS) Yellowtail

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The "Southern New England Yellowtail Flounder Industry-Based Survey" was a collaboration between the Rhode Island Division of Fish and Wildlife and the fishing...

  15. PHYSIOLOGY OF ACID BASE BALANCE

    Directory of Open Access Journals (Sweden)

    Awati

    2014-12-01

    Full Text Available Acid-base, electrolyte, and metabolic disturbances are common in the intensive care unit. Almost all critically ill patients often suffer from compound acid-base and electrolyte disorders. Successful evaluation and management of such patients requires recognition of common patterns (e.g., metabolic acidosis and the ability to dissect one disorder from another. The intensivists needs to identify and correct these condition with the easiest available tools as they are the associated with multiorgan failure. Understanding the elements of normal physiology in these areas is very important so as to diagnose the pathological condition and take adequate measures as early as possible. Arterial blood gas analysis is one such tool for early detection of acid base disorder. Physiology of acid base is complex and here is the attempt to simplify it in our day to day application for the benefit of critically ill patients.

  16. NORTHWOODS Wildlife Habitat Data Base

    Science.gov (United States)

    Mark D. Nelson; Janine M. Benyus; Richard R. Buech

    1992-01-01

    Wildlife habitat data from seven Great Lakes National Forests were combined into a wildlife-habitat matrix named NORTHWOODS. Several electronic file formats of NORTHWOODS data base and documentation are available on floppy disks for microcomputers.

  17. GCCS Spatial Data Base Module

    National Research Council Canada - National Science Library

    Bell, Paul

    1998-01-01

    .... JMTK is divided into three primary areas: (1) Visual, (2) Analysis (non-visual), and (3) Spatial Data Base (SDBM). The primary objective of the SDBM effort is to define, design, develop and test mapping, charting and geodesy...

  18. Surface stress-based biosensors.

    Science.gov (United States)

    Sang, Shengbo; Zhao, Yuan; Zhang, Wendong; Li, Pengwei; Hu, Jie; Li, Gang

    2014-01-15

    Surface stress-based biosensors, as one kind of label-free biosensors, have attracted lots of attention in the process of information gathering and measurement for the biological, chemical and medical application with the development of technology and society. This kind of biosensors offers many advantages such as short response time (less than milliseconds) and a typical sensitivity at nanogram, picoliter, femtojoule and attomolar level. Furthermore, it simplifies sample preparation and testing procedures. In this work, progress made towards the use of surface stress-based biosensors for achieving better performance is critically reviewed, including our recent achievement, the optimally circular membrane-based biosensors and biosensor array. The further scientific and technological challenges in this field are also summarized. Critical remark and future steps towards the ultimate surface stress-based biosensors are addressed. Copyright © 2013 Elsevier B.V. All rights reserved.

  19. Chip-based droplet sorting

    Science.gov (United States)

    Beer, Neil Reginald; Lee, Abraham; Hatch, Andrew

    2017-11-21

    A non-contact system for sorting monodisperse water-in-oil emulsion droplets in a microfluidic device based on the droplet's contents and their interaction with an applied electromagnetic field or by identification and sorting.

  20. Cage-based performance capture

    CERN Document Server

    Savoye, Yann

    2014-01-01

    Nowadays, highly-detailed animations of live-actor performances are increasingly easier to acquire and 3D Video has reached considerable attentions in visual media production. In this book, we address the problem of extracting or acquiring and then reusing non-rigid parametrization for video-based animations. At first sight, a crucial challenge is to reproduce plausible boneless deformations while preserving global and local captured properties of dynamic surfaces with a limited number of controllable, flexible and reusable parameters. To solve this challenge, we directly rely on a skin-detached dimension reduction thanks to the well-known cage-based paradigm. First, we achieve Scalable Inverse Cage-based Modeling by transposing the inverse kinematics paradigm on surfaces. Thus, we introduce a cage inversion process with user-specified screen-space constraints. Secondly, we convert non-rigid animated surfaces into a sequence of optimal cage parameters via Cage-based Animation Conversion. Building upon this re...

  1. FEMA DFIRM Base Flood Elevations

    Data.gov (United States)

    Minnesota Department of Natural Resources — The Base Flood Elevation (BFE) table is required for any digital data where BFE lines will be shown on the corresponding Flood Insurance Rate Map (FIRM). Normally,...

  2. Consent Based Verification System (CBSV)

    Data.gov (United States)

    Social Security Administration — CBSV is a fee-based service offered by SSA's Business Services Online (BSO). It is used by private companies to verify the SSNs of their customers and clients that...

  3. Microprocessor based techniques at CESR

    International Nuclear Information System (INIS)

    Giannini, G.; Cornell Univ., Ithaca, NY

    1981-01-01

    Microprocessor based systems succesfully used in connection with the High Energy Physics experimental program at the Cornell Electron Storage Ring are described. The multiprocessor calibration system for the CUSB calorimeter is analyzed in view of present and future applications. (orig.)

  4. Consumption-based Equity Valuation

    DEFF Research Database (Denmark)

    Bach, Christian; Christensen, Peter Ove

    2013-01-01

    Using a CCAPM-based risk-adjustment model consistent with general asset pricing theory, we perform yearly valuations of a large sample of stocks listed on NYSE, AMEX and NASDAQ over a thirty-year period. The model differs from standard valuation models in the sense that it adjusts forecasted...... residual income for risk in the numerator rather than through a risk-adjusted cost of equity in the denominator. The risk-adjustments are derived based on assumptions about the time-series properties of residual income returns and aggregate consumption rather than on historical stock returns. We compare...... the performance of the model with several implementations of standard valuation models, both in terms of absolute valuation errors, and in terms of the returns on simple investment strategies based on the differences between model and market prices in the respective valuation models. The CCAPM-based valuation...

  5. Base compaction specification feasibility analysis.

    Science.gov (United States)

    2012-12-01

    The objective of this research is to establish the technical engineering and cost : analysis concepts that will enable WisDOT management to objectively evaluate the : feasibility of switching construction specification philosophies for aggregate base...

  6. Industry Based Survey (IBS) Cod

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The "Gulf of Maine Atlantic Cod Industry-Based Survey" was a collaboration of the Massachusetts Division of Marine Fisheries and the fishing industry, with support...

  7. US Air Force Base Observations

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Hourly observations taken by U.S. Air Force personnel at bases in the United States and around the world. Foreign observations concentrated in the Middle East and...

  8. Office-Based Plastic Surgery

    OpenAIRE

    Ersek, Robert A.

    2007-01-01

    Office-based plastic surgery began in the 1960s and has expanded exponentially since then. The majority of plastic surgeons now have their own office-based facilities, and every elective aesthetic procedure from hair transplantation to abdominoplasty and breast reduction can be done as an outpatient procedure with tremendous increases in efficiency, safety, and time. We started with a single room and have expanded to three operating rooms, two specific preoperative, postoperative private room...

  9. Memory-Based Expert Systems

    Science.gov (United States)

    1992-12-01

    relevant cases quickly from a large memory -plus the requirement for an explicit theory of index content in the complex social domain where relevance often...Sep 89 - 31 Jan 92 4. TITLE AND SUBTITLE 5. FUNDING NUMBERS " MEMORY -BASED EXPERT SYSTEMS" (U) 61102F 2304/A7 6. AUTHOR(S) Dr. Roger C. Schank 7...three problems: (1) The development of a robust memory -based parsing technology (Direct Memory Access Parsing, or DMP), (2) The development of case

  10. Mapping Mindfulness-based Performance

    OpenAIRE

    Middleton, Deborah K.

    2017-01-01

    In this paper, I report on the University of Huddersfield's Mindfulness and Performance Project (MAP)2, outlining the field of practice that the project was designed to profile, and exploring some of the implications of what we might call 'mindfulness-based performance'. Framing this work within the context of the growing literature on clinical and therapeutic 'mindfulness-based interventions' I explore definitions of mindfulness, and consider how contemplative science might influence and gui...

  11. TFC Base de datos relacionales

    OpenAIRE

    Moreno Pozuelo, Isabel

    2015-01-01

    El objetivo de este proyecto es desarrollar una base de datos relacional que contenga los datos necesarios para realizar la gestión de carteras de inversión. L'objectiu d'aquest projecte és desenvolupar una base de dades relacional que contingui les dades necessàries per realitzar la gestió de carteres d'inversió. Bachelor thesis for the Computer Science program on Databases.

  12. Osmium-Based Pyrimidine Contrast Tags for Enhanced Nanopore-Based DNA Base Discrimination.

    Directory of Open Access Journals (Sweden)

    Robert Y Henley

    Full Text Available Nanopores are a promising platform in next generation DNA sequencing. In this platform, an individual DNA strand is threaded into nanopore using an electric field, and enzyme-based ratcheting is used to move the strand through the detector. During this process the residual ion current through the pore is measured, which exhibits unique levels for different base combinations inside the pore. While this approach has shown great promise, accuracy is not optimal because the four bases are chemically comparable to one another, leading to small differences in current obstruction. Nucleobase-specific chemical tagging can be a viable approach to enhancing the contrast between different bases in the sequence. Herein we show that covalent modification of one or both of the pyrimidine bases by an osmium bipyridine complex leads to measureable differences in the blockade amplitudes of DNA molecules. We qualitatively determine the degree of osmylation of a DNA strand by passing it through a solid-state nanopore, and are thus able to gauge T and C base content. In addition, we show that osmium bipyridine reacts with dsDNA, leading to substantially different current blockade levels than exhibited for bare dsDNA. This work serves as a proof of principle for nanopore sequencing and mapping via base-specific DNA osmylation.

  13. Entanglement in mutually unbiased bases

    Energy Technology Data Exchange (ETDEWEB)

    Wiesniak, M; Zeilinger, A [Vienna Center for Quantum Science and Technology (VCQ), Faculty of Physics, University of Vienna, Boltzmanngasse 5, 1090 Vienna (Austria); Paterek, T, E-mail: tomasz.paterek@nus.edu.sg [Centre for Quantum Technologies, National University of Singapore, 3 Science Drive 2, 117543 Singapore (Singapore)

    2011-05-15

    One of the essential features of quantum mechanics is that most pairs of observables cannot be measured simultaneously. This phenomenon manifests itself most strongly when observables are related to mutually unbiased bases. In this paper, we shed some light on the connection between mutually unbiased bases and another essential feature of quantum mechanics, quantum entanglement. It is shown that a complete set of mutually unbiased bases of a bipartite system contains a fixed amount of entanglement, independent of the choice of the set. This has implications for entanglement distribution among the states of a complete set. In prime-squared dimensions we present an explicit experiment-friendly construction of a complete set with a particularly simple entanglement distribution. Finally, we describe the basic properties of mutually unbiased bases composed of product states only. The constructions are illustrated with explicit examples in low dimensions. We believe that the properties of entanglement in mutually unbiased bases may be one of the ingredients to be taken into account to settle the question of the existence of complete sets. We also expect that they will be relevant to applications of bases in the experimental realization of quantum protocols in higher-dimensional Hilbert spaces.

  14. Home-based versus centre-based cardiac rehabilitation.

    Science.gov (United States)

    Taylor, Rod S; Dalal, Hayes; Jolly, Kate; Moxham, Tiffany; Zawada, Anna

    2010-01-20

    The burden of cardiovascular disease world-wide is one of great concern to patients and health care agencies alike. Traditionally centre-based cardiac rehabilitation (CR) programmes are offered to individuals after cardiac events to aid recovery and prevent further cardiac illness. Home-based cardiac rehabilitation programmes have been introduced in an attempt to widen access and participation. To determine the effectiveness of home-based cardiac rehabilitation programmes compared with supervised centre-based cardiac rehabilitation on mortality and morbidity, health-related quality of life and modifiable cardiac risk factors in patients with coronary heart disease. We updated the search of a previous review by searching the Cochrane Central Register of Controlled Trials (CENTRAL) in The Cochrane Library (2007, Issue 4), MEDLINE, EMBASE and CINAHL from 2001 to January 2008. We checked reference lists and sought advice from experts. No language restrictions were applied. Randomised controlled trials (RCTs) that compared centre-based cardiac rehabilitation (e.g. hospital, gymnasium, sports centre) with home-based programmes, in adults with myocardial infarction, angina, heart failure or who had undergone revascularisation. Studies were selected independently by two reviewers, and data extracted by a single reviewer and checked by a second one. Authors were contacted where possible to obtain missing information. Twelve studies (1,938 participants) met the inclusion criteria. The majority of studies recruited a lower risk patient following an acute myocardial infarction (MI) and revascularisation. There was no difference in outcomes of home- versus centre-based cardiac rehabilitation in mortality risk ratio (RR) was1.31 (95% confidence interval (C) 0.65 to 2.66), cardiac events, exercise capacity standardised mean difference (SMD) -0.11 (95% CI -0.35 to 0.13), as well as in modifiable risk factors (systolic blood pressure; diastolic blood pressure; total cholesterol

  15. Advanced linear and nonlinear compensations for 16QAM SC-400G unrepeatered transmission system

    Science.gov (United States)

    Zhang, Junwen; Yu, Jianjun; Chien, Hung-Chang

    2018-02-01

    Digital signal processing (DSP) with both linear equalization and nonlinear compensations are studied in this paper for the single-carrier 400G system based on 65-GBaud 16-quadrature amplitude modulation (QAM) signals. The 16-QAM signals are generated and pre-processed with pre-equalization (Pre-EQ) and Look-up-Table (LUT) based pre-distortion (Pre-DT) at the transmitter (Tx)-side. The implementation principle of training-based equalization and pre-distortion are presented here in this paper with experimental studies. At the receiver (Rx)-side, fiber-nonlinearity compensation based on digital backward propagation (DBP) are also utilized to further improve the transmission performances. With joint LUT-based Pre-DT and DBP-based post-compensation to mitigate the opto-electronic components and fiber nonlinearity impairments, we demonstrate the unrepeatered transmission of 1.6Tb/s based on 4-lane 400G single-carrier PDM-16QAM over 205-km SSMF without distributed amplifier.

  16. Description-based and experience-based decisions: individual analysis

    Directory of Open Access Journals (Sweden)

    Andrey Kudryavtsev

    2012-05-01

    Full Text Available We analyze behavior in two basic classes of decision tasks: description-based and experience-based. In particular, we compare the prediction power of a number of decision learning models in both kinds of tasks. Unlike most previous studies, we focus on individual, rather than aggregate, behavioral characteristics. We carry out an experiment involving a battery of both description- and experience-based choices between two mixed binary prospects made by each of the participants, and employ a number of formal models for explaining and predicting participants' choices: Prospect theory (PT (Kahneman and Tversky, 1979; Expectancy-Valence model (EVL (Busemeyer and Stout, 2002; and three combinations of these well-established models. We document that the PT and the EVL models are best for predicting people's decisions in description- and experience-based tasks, respectively, which is not surprising as these two models are designed specially for these kinds of tasks. Furthermore, we find that models involving linear weighting of gains and losses perform better in both kinds of tasks, from the point of view of generalizability and individual parameter consistency. We therefore, conclude that, overall, when both prospects are mixed, the assumption of diminishing sensitivity does not improve models' prediction power for individual decision-makers. Finally, for some of the models' parameters, we document consistency at the individual level between description- and experience-based tasks.

  17. WEB ANALYTICS COMBINED WITH EYE TRACKING FOR SUCCESSFUL USER EXPERIENCE DESIGN: A CASE STUDY

    Directory of Open Access Journals (Sweden)

    Magdalena BORYS

    2016-12-01

    Full Text Available The authors propose a new approach for the mobile user experience design process by means of web analytics and eye-tracking. The proposed method was applied to design the LUT mobile website. In the method, to create the mobile website design, data of various users and their behaviour were gathered and analysed using the web analytics tool. Next, based on the findings from web analytics, the mobile prototype for the website was created and validated in eye-tracking usability testing. The analysis of participants’ behaviour during eye-tracking sessions allowed improvements of the prototype.

  18. The Efficiency of SRTM Data for Geomorphic Feature Analysis Using Artificial Neural Network

    Science.gov (United States)

    Ehsani, A. H.

    2009-04-01

    The Shuttle Radar Topography Mission (SRTM) has provided detailed digital elevation models (DEM) for all land masses between 60° N and 57° S. Easy availability of SRTM 3 arc second data promoted great advances in morphometric studies and numerical description of terrain surface features as shown by many literature references. This paper presents a robust new approach using artificial neural networks in the form of a Self Organizing Map (SOM) as a semi-automatic method for analysis and identification of morphometric features in Lut Desert, Iran. Lut Desert or Dasht-e Lut is a large salt desert with a hyper arid region characterized by homogeneous repetition of wind-eroded landforms (Yardang), some of the world's highest mega dunes and salt flats in southeastern Iran. The results of other parametrization method (Wood's method) which are available in the geographic information system softwares (such as GRASS) are compared with the SOM. Wood's Morphometric Parameterization provides point-based features (peaks, pits and passes), line based features (channels and ridges) and area-based features (planar). Since point based features are defined as having zero slope, selection of suitable values for slope tolerance and curvature tolerance are crucial for useful results. The 3 arc seconds data were re-projected to a 90 m UTM grid with WGS84 datum. Bivariate quadratic surfaces with moving window size of 5×5 were fitted to this DEM. The first derivative, slope steepness and the second derivatives minimum curvature, maximum curvature and cross-sectional curvature were calculated as geo-morphometric parameters and were used as input to the two mentioned approaches. Different learning parameter setting, e.g. initial radius, final radius, number of iterations, and the effect of the random initial weights on average quantization error were investigated. A SOM with a low average quantization error was used for further analysis. Feature space analysis, morphometric signatures

  19. WEB ANALYTICS COMBINED WITH EYE TRACKING FOR SUCCESSFUL USER EXPERIENCE DESIGN: A CASE STUDY

    OpenAIRE

    Magdalena BORYS; Monika CZWÓRNÓG; Tomasz RATAJCZYK

    2016-01-01

    The authors propose a new approach for the mobile user experience design process by means of web analytics and eye-tracking. The proposed method was applied to design the LUT mobile website. In the method, to create the mobile website design, data of various users and their behaviour were gathered and analysed using the web analytics tool. Next, based on the findings from web analytics, the mobile prototype for the website was created and validated in eye-tracking usability testing. The analy...

  20. Improved Biogeography-Based Optimization Based on Affinity Propagation

    Directory of Open Access Journals (Sweden)

    Zhihao Wang

    2016-07-01

    Full Text Available To improve the search ability of biogeography-based optimization (BBO, this work proposed an improved biogeography-based optimization based on Affinity Propagation. We introduced the Memetic framework to the BBO algorithm, and used the simulated annealing algorithm as the local search strategy. MBBO enhanced the exploration with the Affinity Propagation strategy to improve the transfer operation of the BBO algorithm. In this work, the MBBO algorithm was applied to IEEE Congress on Evolutionary Computation (CEC 2015 benchmarks optimization problems to conduct analytic comparison with the first three winners of the CEC 2015 competition. The results show that the MBBO algorithm enhances the exploration, exploitation, convergence speed and solution accuracy and can emerge as the best solution-providing algorithm among the competing algorithms.