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Sample records for analysis qualitative chemical

  1. Quality assurance of qualitative analysis

    DEFF Research Database (Denmark)

    Ríos, Ángel; Barceló, Damiá; Buydens, Lutgarde;

    2003-01-01

    The European Commission has supported the G6MA-CT-2000-01012 project on "Metrology of Qualitative Chemical Analysis" (MEQUALAN), which was developed during 2000-2002. The final result is a document produced by a group of scientists with expertise in different areas of chemical analysis, metrology......: traceability, reliability (uncertainty), validation, and internal/external quality control for qualitative methods....

  2. Quantitative and qualitative analysis of common peaks in chemical fingerprint of Yuanhu Zhitong tablet by HPLC-DAD–MS/MS

    OpenAIRE

    Dao-Quan Tang; Xiao-Xiao Zheng; Xu Chen; Dong-Zhi Yang; Qian Du

    2014-01-01

    A quality control (QC) strategy for quantitative and qualitative analysis of “common peaks” in chemical fingerprint was proposed to analyze Yuanhu Zhitong tablet (YZT), using high performance liquid chromatography with diode array detector and tandem mass spectrometry (HPLC-DAD–MS/MS). The chromatographic separation was achieved on an Agilent Eclipse plus C18 column with a gradient elution using a mixture of 0.4‰ ammonium acetate aqueous (pH 6.0 adjusted with glacial acetic acid) and acetonit...

  3. Microscale Procedure for Inorganic Qualitative Analysis with Emphasis on Writing Equations: Chemical Fingerprinting Applied to the "n"-bottle Problem of Matching Samples with Their Formulas

    Science.gov (United States)

    Sattsangi, Prem D.

    2014-01-01

    A laboratory method for teaching inorganic qualitative analysis and chemical equations is described. The experiment has been designed to focus attention on cations and anions that react to form products. This leads to a logical approach to understand and write chemical equations. The procedure uses 3 mL plastic micropipettes to store and deliver…

  4. Qualitative analysis of the chemical constituents in Hedyotis diffusa by HPLC-TOF-MS.

    Science.gov (United States)

    Wang, Xu; Cheng, Weiming; Yao, Xinning; Guo, Xingjie

    2012-01-01

    A high performance liquid chromatography-time-of-flight-mass spectrometry (HPLC-TOF-MS) method was developed for analysing the chemical constituents in Hedyotis diffusa, which is widely used as a traditional Chinese medicine (TCM) in the field of cancer treatment. The compounds were identified either by comparing the retention time and mass spectrometry data with those of reference compounds or by analysing mass spectrometry data and retrieving reference literature. Among the detected chromatographic peaks, nine components were unambiguously identified, most of which were iridoids. This study is expected to provide an effective and reliable pattern for comprehensive and systematic characterisation of the complex TCM systems. PMID:21838590

  5. Quantitative and qualitative analysis of common peaks in chemical fingerprint of Yuanhu Zhitong tablet by HPLC-DAD–MS/MS

    Directory of Open Access Journals (Sweden)

    Dao-Quan Tang

    2014-04-01

    Full Text Available A quality control (QC strategy for quantitative and qualitative analysis of “common peaks” in chemical fingerprint was proposed to analyze Yuanhu Zhitong tablet (YZT, using high performance liquid chromatography with diode array detector and tandem mass spectrometry (HPLC-DAD–MS/MS. The chromatographic separation was achieved on an Agilent Eclipse plus C18 column with a gradient elution using a mixture of 0.4‰ ammonium acetate aqueous (pH 6.0 adjusted with glacial acetic acid and acetonitrile. In chemical fingerprint, 40 peaks were assigned as the “common peaks”. For quantification of “common peaks”, the detection wavelength was set at 254 nm, 270 nm, 280 nm and 345 nm, respectively. The method was validated and good results were obtained to simultaneously determine 10 analytes (protopine, jatrorrhizine, coptisine, palmatine, berberine, xanthotoxin, bergapten, tetrahydropalmatine, imperatorin and isoimperatorin. For qualification of “common peaks”, 33 compounds including 10 quantitative analytes were identified or tentatively characterized using LC–MS/MS. These results demonstrated that the present approach may be a powerful and useful tool to tackle the complex quality issue of YZT.

  6. Qualitative Analysis of Somitogenesis Models

    Directory of Open Access Journals (Sweden)

    Maschke-Dutz E.

    2007-12-01

    Full Text Available Although recently the properties of a single somite cell oscillator have been intensively investigated, the system-level nature of the segmentation clock remains largely unknown. To elaborate qualitatively this question, we examine the possibility to transform a well-known time delay somite cell oscillator to dynamical system of differential equations allowing qualitative analysis.

  7. Collective Analysis of Qualitative Data

    DEFF Research Database (Denmark)

    Simonsen, Jesper; Friberg, Karin

    2014-01-01

    What. Many students and practitioners do not know how to systematically process qualitative data once it is gathered—at least not as a collective effort. This chapter presents two workshop techniques, affinity diagramming and diagnostic mapping, that support collective analysis of large amounts of...... qualitative data. Affinity diagramming is used to make collective analysis and interpretations of qualitative data to identify core problems that need to be addressed in the design process. Diagnostic mapping supports collective interpretation and description of these problems and how to intervene in them. We...... explain the techniques through a case where they were used to analyze why a new elec- tronic medical record system introduced life-threatening situations for patients. Why. Collective analyses offer all participants a voice, visualize their contributions, combine different actors’ perspectives, and anchor...

  8. Qualitative and quantitative analysis of chemical constituents of Centipeda minima by HPLC-QTOF-MS & HPLC-DAD.

    Science.gov (United States)

    Chan, Chi-On; Jin, Deng-Ping; Dong, Nai-Ping; Chen, Si-Bao; Mok, Daniel Kam Wah

    2016-06-01

    A high performance liquid chromatography coupled with quadrupole time-of-flight mass spectrometry (HPLC-QTOF-MS) method in both positive and negative ion modes was established to investigate the major constituents in the ethanolic extract of Centipeda minima (EBSC). Twelve common components including flavones and their glycosides, phenolic and polyphenolic acids, and sesquiterpene lactone were identified in ten batches of samples based on comparison with the retention time and accurate mass of external standards (mass accuracy within 3ppm) or the fragmentation patterns of tandem MS. Meanwhile, a simple, accurate and reliable HPLC-DAD method was also developed to determine the content of 10 chemical markers simultaneously. Results obtained from method validations including linearity, accuracy and precision showed that this new method is reliable and robust. Isochlorogenic acid A and brevilin A were found to be the most abundant in the ethanol extract of EBSC and could be served as markers for quality control of EBSC. PMID:27131150

  9. Qualitative analysis of some carboxylic acids by ion-exclusion chromatography with atmospheric pressure chemical ionization mass spectrometric detection.

    Science.gov (United States)

    Helale, Murad I H; Tanaka, Kazuhiko; Taoda, Hiroshi; Hu, Wenzhi; Hasebe, Kiyoshi; Haddad, Paul R

    2002-05-17

    A simple, selective and sensitive method for the determination of carboxylic acids has been developed. A mixture of formic, acetic, propionic, valeric, isovaleric, isobutyric, and isocaproic acids has been separated on a polymethacrylate-based weak acidic cation-exchange resin (TSK gel OA pak-A) based on an ion-exclusion chromatographic mechanism with detection using UV-photodiode array, conductivity and atmospheric pressure chemical ionization mass spectrometry (APCI-MS). A mobile phase consisting of 0.85 mM benzoic acid in 10% aqueous methanol (pH 3.89) was used to separate the above carboxylic acids in about 40 min. For LC-MS, the APCI interface was used in the negative ionization mode. Linear plots of peak area versus concentration were obtained over the range 1-30 mM (r2=0.9982) and 1-30 mM (r2=0.9958) for conductimetric and MS detection, respectively. The detection limits of the target carboxylic acids calculated at S/N=3 ranged from 0.078 to 2.3 microM for conductimetric and photometric detection and from 0.66 to 3.82 microM for ion-exclusion chromatography-APCI-MS. The reproducibility of retention times was 0.12-0.16% relative standard deviation for ion-exclusion chromatography and 1.21-2.5% for ion-exclusion chromatography-APCI-MS. The method was applied to the determination of carboxylic acids in red wine, white wine, apple vinegar, and Japanese rice wine. PMID:12108651

  10. The Qualitative Method of Impact Analysis.

    Science.gov (United States)

    Mohr, Lawrence B.

    1999-01-01

    Discusses qualitative methods of impact analysis and provides an introductory treatment of one such approach. Combines an awareness of an alternative causal epistemology with current knowledge of qualitative methods of data collection and measurement to produce an approach to the analysis of impacts. (SLD)

  11. Caregiving: A Qualitative Concept Analysis

    Science.gov (United States)

    Hermanns, Melinda; Mastel-Smith, Beth

    2012-01-01

    A common definition of caregiving does not exist. In an attempt to define the concept of caregiving, the authors used a hybrid qualitative model of concept development to analyze caregiving. The model consists of three phases: (a) theoretical, (b) fieldwork, and (c) analytical. The theoretical phase involves conducting an interdisciplinary…

  12. Chemical Analysis Facility

    Data.gov (United States)

    Federal Laboratory Consortium — FUNCTION: Uses state-of-the-art instrumentation for qualitative and quantitative analysis of organic and inorganic compounds, and biomolecules from gas, liquid, and...

  13. Chemical Security Analysis Center

    Data.gov (United States)

    Federal Laboratory Consortium — In 2006, by Presidential Directive, DHS established the Chemical Security Analysis Center (CSAC) to identify and assess chemical threats and vulnerabilities in the...

  14. Conducting Qualitative Data Analysis: Qualitative Data Analysis as a Metaphoric Process

    Science.gov (United States)

    Chenail, Ronald J.

    2012-01-01

    In the second of a series of "how-to" essays on conducting qualitative data analysis, Ron Chenail argues the process can best be understood as a metaphoric process. From this orientation he suggests researchers follow Kenneth Burke's notion of metaphor and see qualitative data analysis as the analyst systematically considering the "this-ness" of…

  15. Qualitative and quantitative analysis of detonation products

    International Nuclear Information System (INIS)

    Different sampling and different injection method were used during analyzing unknown detonation products in a obturator. The sample analyzed by gas chromatography and gas chromatography/mass spectrum. Qualitative analysis was used with CO, NO, C2H2, C6H6 and so on, qualitative analysis was used with C3H5N, C10H10, C8H8N2 and so on. The method used in the article is feasible. The results show that the component of detonation in the study is negative oxygen balance, there were many pollutants in the detonation products. (authors)

  16. About Statistical Analysis of Qualitative Survey Data

    Directory of Open Access Journals (Sweden)

    Stefan Loehnert

    2010-01-01

    Full Text Available Gathered data is frequently not in a numerical form allowing immediate appliance of the quantitative mathematical-statistical methods. In this paper are some basic aspects examining how quantitative-based statistical methodology can be utilized in the analysis of qualitative data sets. The transformation of qualitative data into numeric values is considered as the entrance point to quantitative analysis. Concurrently related publications and impacts of scale transformations are discussed. Subsequently, it is shown how correlation coefficients are usable in conjunction with data aggregation constrains to construct relationship modelling matrices. For illustration, a case study is referenced at which ordinal type ordered qualitative survey answers are allocated to process defining procedures as aggregation levels. Finally options about measuring the adherence of the gathered empirical data to such kind of derived aggregation models are introduced and a statistically based reliability check approach to evaluate the reliability of the chosen model specification is outlined.

  17. Conducting Qualitative Data Analysis: Managing Dynamic Tensions within

    Science.gov (United States)

    Chenail, Ronald J.

    2012-01-01

    In the third of a series of "how-to" essays on conducting qualitative data analysis, Ron Chenail examines the dynamic tensions within the process of qualitative data analysis that qualitative researchers must manage in order to produce credible and creative results. These tensions include (a) the qualities of the data and the qualitative data…

  18. Analysis of molecular electronic structure of imidazole- and benzimidazole-based inhibitors: A simple recipe for qualitative estimation of chemical hardness

    International Nuclear Information System (INIS)

    Research highlights: → Electronic structure of imidazole and benzimidazole type corrosion inhibitors is assessed by quantum chemical calculations. → Simple recipe for estimating chemical hardness trend of chemically similar inhibitor molecules is presented. → Effect of various substituents on the molecular electronic structure and solvation free energy is explained. → Possible implications to adsorption and consequent inhibition of corrosion are discussed. - Abstract: The effect of methyl, phenyl, and mercapto substituents on electronic structure of imidazole type inhibitors was characterized by density-functional-theory calculations. The most coherent trend is observed for chemical hardness. It is demonstrated that, in general, larger molecules are chemically softer provided they belong to the same chemical type. The electronegativity is reduced by methyl and mercapto substituents and increased by phenyl substituent. It is further shown that phenyl substituent reduces the solvation free energy thus increasing the relative tendency of the molecule to get adsorbed on the surface, which may contribute to the increased inhibition effectiveness against corrosion of copper.

  19. Analysis of molecular electronic structure of imidazole- and benzimidazole-based inhibitors: A simple recipe for qualitative estimation of chemical hardness

    Energy Technology Data Exchange (ETDEWEB)

    Kovacevic, Natasa [Department of Physical and Organic Chemistry, Jozef Stefan Institute, Jamova 39, SI-1000 Ljubljana (Slovenia); Kokalj, Anton, E-mail: tone.kokalj@ijs.s [Department of Physical and Organic Chemistry, Jozef Stefan Institute, Jamova 39, SI-1000 Ljubljana (Slovenia)

    2011-03-15

    Research highlights: {yields} Electronic structure of imidazole and benzimidazole type corrosion inhibitors is assessed by quantum chemical calculations. {yields} Simple recipe for estimating chemical hardness trend of chemically similar inhibitor molecules is presented. {yields} Effect of various substituents on the molecular electronic structure and solvation free energy is explained. {yields} Possible implications to adsorption and consequent inhibition of corrosion are discussed. - Abstract: The effect of methyl, phenyl, and mercapto substituents on electronic structure of imidazole type inhibitors was characterized by density-functional-theory calculations. The most coherent trend is observed for chemical hardness. It is demonstrated that, in general, larger molecules are chemically softer provided they belong to the same chemical type. The electronegativity is reduced by methyl and mercapto substituents and increased by phenyl substituent. It is further shown that phenyl substituent reduces the solvation free energy thus increasing the relative tendency of the molecule to get adsorbed on the surface, which may contribute to the increased inhibition effectiveness against corrosion of copper.

  20. Pluralism in qualitative research: the impact of different researchers and qualitative approaches on the analysis of qualitative data.

    OpenAIRE

    Frost, Nollaig; Nolas, Sevasti-Melissa; Brooks-Gordon, Belinda; Esin, Cigdem; Holt, Amanda; Mehdizadeh, Leila; Shinebourne, Pnina

    2010-01-01

    Qualitative approaches to research in psychology and the social sciences are increasingly used. The variety of approaches incorporates different epistemologies, theoretical traditions and practices with associated analysis techniques spanning a range of theoretical and empirical frameworks. Despite the increase in mixed method approaches it is unusual for qualitative methods to be used in combination with each other. The Pluralism in Qualitative Research project (PQR) was developed in order ...

  1. Qualitative Aspects of the Solutions of a Mathematical Model for the Dynamic Analysis of the Reversible Chemical Reaction SO2(g)+1/2O2(g)<=>SO3(g) in a Catalytic Reactor

    CERN Document Server

    Wilfredo, Angulo

    2014-01-01

    We present some qualitative aspects concerning the solution to the mathematical model describing the dynamical behavior of the reversible chemical reaction SO2(g)+1/2O2(g)SO3(g) carried out in a catalytic reactor used in the process of sulfuric acid production.

  2. Qualitative and quantitative spectro-chemical analysis of dates using UV-pulsed laser induced breakdown spectroscopy and inductively coupled plasma mass spectrometry.

    Science.gov (United States)

    Mehder, A O; Habibullah, Y B; Gondal, M A; Baig, Umair

    2016-08-01

    Laser Induced Breakdown Spectroscopy (LIBS) is demonstrated for the spectral analysis of nutritional and toxic elements present in several varieties of date fruit samples available in the Saudi Arabia market. The method analyzes the optical emission of a test sample when subjected to pulsed laser ablation. In this demonstration, our primary focus is on calcium (Ca) and magnesium (Mg), as nutritional elements, and on chromium (Cr), as a toxic element. The local thermodynamic equilibrium (LTE) condition was confirmed prior to the elemental characterization of date samples to ensure accuracy of the LIBS analysis. This was achieved by measuring parameters associated with the plasma, such as the electron temperature and the electron number density. These plasma parameters aid interpretation of processes such as ionization, dissociation, and excitation occurring in the plasma plume formed by ablating the date palm sample. The minimum detection limit was established from calibration curves that involved plotting the LIBS signal intensity as a function of standard date samples with known concentrations. The concentration of Ca and Mg detected in different varieties of date samples was between 187 and 515 and 35-196mgL(-1) respectively, while Cr concentration measured between 1.72 and 7.76mgL(-1). In order to optimize our LIBS system, we have studied how the LIBS signal intensity depends on the incident laser energy and the delay time. In order to validate our LIBS analysis results, standard techniques such as inductively coupled plasma mass spectrometry (ICP-MS) were also applied on an identical (duplicate) date samples as those used for the LIBS analysis. The LIBS results exhibit remarkable agreement with those obtained from the ICP-MS analysis. In addition, the finger print wavelengths of other elements present in date samples were also identified and are reported here, which has not been previously reported, to the best of our knowledge. PMID:27216665

  3. Chemical exchange program analysis.

    Energy Technology Data Exchange (ETDEWEB)

    Waffelaert, Pascale

    2007-09-01

    As part of its EMS, Sandia performs an annual environmental aspects/impacts analysis. The purpose of this analysis is to identify the environmental aspects associated with Sandia's activities, products, and services and the potential environmental impacts associated with those aspects. Division and environmental programs established objectives and targets based on the environmental aspects associated with their operations. In 2007 the most significant aspect identified was Hazardous Materials (Use and Storage). The objective for Hazardous Materials (Use and Storage) was to improve chemical handling, storage, and on-site movement of hazardous materials. One of the targets supporting this objective was to develop an effective chemical exchange program, making a business case for it in FY07, and fully implementing a comprehensive chemical exchange program in FY08. A Chemical Exchange Program (CEP) team was formed to implement this target. The team consists of representatives from the Chemical Information System (CIS), Pollution Prevention (P2), the HWMF, Procurement and the Environmental Management System (EMS). The CEP Team performed benchmarking and conducted a life-cycle analysis of the current management of chemicals at SNL/NM and compared it to Chemical Exchange alternatives. Those alternatives are as follows: (1) Revive the 'Virtual' Chemical Exchange Program; (2) Re-implement a 'Physical' Chemical Exchange Program using a Chemical Information System; and (3) Transition to a Chemical Management Services System. The analysis and benchmarking study shows that the present management of chemicals at SNL/NM is significantly disjointed and a life-cycle or 'Cradle-to-Grave' approach to chemical management is needed. This approach must consider the purchasing and maintenance costs as well as the cost of ultimate disposal of the chemicals and materials. A chemical exchange is needed as a mechanism to re-apply chemicals on site. This

  4. Qualitative Research and Computer Analysis: New Challenges and Opportunities

    OpenAIRE

    Yuen, AHK

    2000-01-01

    The use of computers for Qualitative Data Analysis (QDA) in qualitative research has been growing rapidly in the last decade. QDA programs are software packages developed explicitly for the purpose of analyzing qualitative data. A range of different kinds of program is available for the handling and analysis of qualitative data, such as Atlas/ti, HyperRESEARCH, and NUD*IST. With the development of new technologies, the QDA software has advanced from the efficient code-and-retrieve ability to ...

  5. Conducting Qualitative Data Analysis: Reading Line-by-Line, but Analyzing by Meaningful Qualitative Units

    Science.gov (United States)

    Chenail, Ronald J.

    2012-01-01

    In the first of a series of "how-to" essays on conducting qualitative data analysis, Ron Chenail points out the challenges of determining units to analyze qualitatively when dealing with text. He acknowledges that although we may read a document word-by-word or line-by-line, we need to adjust our focus when processing the text for purposes of…

  6. Qualitative Analysis for Maintenance Process Assessment

    Science.gov (United States)

    Brand, Lionel; Kim, Yong-Mi; Melo, Walcelio; Seaman, Carolyn; Basili, Victor

    1996-01-01

    In order to improve software maintenance processes, we first need to be able to characterize and assess them. These tasks must be performed in depth and with objectivity since the problems are complex. One approach is to set up a measurement-based software process improvement program specifically aimed at maintenance. However, establishing a measurement program requires that one understands the problems to be addressed by the measurement program and is able to characterize the maintenance environment and processes in order to collect suitable and cost-effective data. Also, enacting such a program and getting usable data sets takes time. A short term substitute is therefore needed. We propose in this paper a characterization process aimed specifically at maintenance and based on a general qualitative analysis methodology. This process is rigorously defined in order to be repeatable and usable by people who are not acquainted with such analysis procedures. A basic feature of our approach is that actual implemented software changes are analyzed in order to understand the flaws in the maintenance process. Guidelines are provided and a case study is shown that demonstrates the usefulness of the approach.

  7. Chemical process hazards analysis

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1996-02-01

    The Office of Worker Health and Safety (EH-5) under the Assistant Secretary for the Environment, Safety and Health of the US Department (DOE) has published two handbooks for use by DOE contractors managing facilities and processes covered by the Occupational Safety and Health Administration (OSHA) Rule for Process Safety Management of Highly Hazardous Chemicals (29 CFR 1910.119), herein referred to as the PSM Rule. The PSM Rule contains an integrated set of chemical process safety management elements designed to prevent chemical releases that can lead to catastrophic fires, explosions, or toxic exposures. The purpose of the two handbooks, ``Process Safety Management for Highly Hazardous Chemicals`` and ``Chemical Process Hazards Analysis,`` is to facilitate implementation of the provisions of the PSM Rule within the DOE. The purpose of this handbook ``Chemical Process Hazards Analysis,`` is to facilitate, within the DOE, the performance of chemical process hazards analyses (PrHAs) as required under the PSM Rule. It provides basic information for the performance of PrHAs, and should not be considered a complete resource on PrHA methods. Likewise, to determine if a facility is covered by the PSM rule, the reader should refer to the handbook, ``Process Safety Management for Highly Hazardous Chemicals`` (DOE- HDBK-1101-96). Promulgation of the PSM Rule has heightened the awareness of chemical safety management issues within the DOE. This handbook is intended for use by DOE facilities and processes covered by the PSM rule to facilitate contractor implementation of the PrHA element of the PSM Rule. However, contractors whose facilities and processes not covered by the PSM Rule may also use this handbook as a basis for conducting process hazards analyses as part of their good management practices. This handbook explains the minimum requirements for PrHAs outlined in the PSM Rule. Nowhere have requirements been added beyond what is specifically required by the rule.

  8. Beyond Constant Comparison Qualitative Data Analysis: Using NVivo

    Science.gov (United States)

    Leech, Nancy L.; Onwuegbuzie, Anthony J.

    2011-01-01

    The purposes of this paper are to outline seven types of qualitative data analysis techniques, to present step-by-step guidance for conducting these analyses via a computer-assisted qualitative data analysis software program (i.e., NVivo9), and to present screenshots of the data analysis process. Specifically, the following seven analyses are…

  9. Experiences of Kratom Users: A Qualitative Analysis.

    Science.gov (United States)

    Swogger, Marc T; Hart, Elaine; Erowid, Fire; Erowid, Earth; Trabold, Nicole; Yee, Kaila; Parkhurst, Kimberly A; Priddy, Brittany M; Walsh, Zach

    2015-01-01

    Kratom (Mitragyna speciosa) is a psychoactive plant that has been used since at least 1836 in folk medicine in Southeast Asian countries. More recently, kratom has become widely available in the West and is used for both recreational and medicinal purposes. There has, however, been little scientific research into the short- and long-term effects of kratom in humans, and much of the information available is anecdotal. To supplement the increasing scientific understanding of kratom's pharmacology and research into its effects in animals, we report the results of a qualitative analysis of first-hand descriptions of human kratom use that were submitted to, and published by, a psychoactive substance information website (Erowid.org). Themes that emerged from these experience reports indicate that kratom may be useful for analgesia, mood elevation, anxiety reduction, and may aid opioid withdrawal management. Negative response themes also emerged, indicating potential problems and unfavorable "side" effects, especially stomach upset and vomiting. Based on our analyses, we present preliminary hypotheses for future examination in controlled, quantitative studies of kratom. PMID:26595229

  10. Joint association analysis of bivariate quantitative and qualitative traits

    OpenAIRE

    2011-01-01

    Univariate genome-wide association analysis of quantitative and qualitative traits has been investigated extensively in the literature. In the presence of correlated phenotypes, it is more intuitive to analyze all phenotypes simultaneously. We describe an efficient likelihood-based approach for the joint association analysis of quantitative and qualitative traits in unrelated individuals. We assume a probit model for the qualitative trait, under which an unobserved latent variable and a presp...

  11. Handbook of Qualitative Research Techniques and Analysis in Entrepreneurship

    DEFF Research Database (Denmark)

    Neergaard, Helle; Leitch, Claire

    2015-01-01

    One of the most challenging tasks in the research design process is choosing the most appropriate data collection and analysis techniques. This Handbook provides a detailed introduction to five qualitative data collection and analysis techniques pertinent to exploring entreprneurial phenomena....

  12. Handbook of Qualitative Research Techniques and Analysis in Entrepreneurship

    DEFF Research Database (Denmark)

    Neergaard, Helle; Leitch, Claire

    One of the most challenging tasks in the research design process is choosing the most appropriate data collection and analysis techniques. This Handbook provides a detailed introduction to five qualitative data collection and analysis techniques pertinent to exploring entreprneurial phenomena....

  13. Enhancing the quality and credibility of qualitative analysis.

    OpenAIRE

    Patton, M Q

    1999-01-01

    Varying philosophical and theoretical orientations to qualitative inquiry remind us that issues of quality and credibility intersect with audience and intended research purposes. This overview examines ways of enhancing the quality and credibility of qualitative analysis by dealing with three distinct but related inquiry concerns: rigorous techniques and methods for gathering and analyzing qualitative data, including attention to validity, reliability, and triangulation; the credibility, comp...

  14. Asian American Career Development: A Qualitative Analysis

    Science.gov (United States)

    Fouad, Nadya A.; Kantamneni, Neeta; Smothers, Melissa K.; Chen, Yung-Lung; Fitzpatrick, Mary; Terry, Sarah

    2008-01-01

    This study used a modified version of consensual qualitative research design to examine how contextual, cultural, and personal variables influence the career choices of a diverse group of 12 Asian Americans. Seven domains of influences on career choices emerged including family, culture, external factors, career goals, role models, work values,…

  15. Radiometric chemical analysis

    International Nuclear Information System (INIS)

    The radiometric method of analysis is noted for its sensitivity and its simplicity in both apparatus and procedure. A few inexpensive radioactive reagents permit the analysis of a wide variety of chemical elements and compounds. Any particular procedure is generally applicable over a very wide range of concentrations. It is potentially an analytical method of great industrial significance. Specific examples of analyses are cited to illustrate the potentialities of ordinary equipment. Apparatus specifically designed for radiometric chemistry may shorten the time required, and increase the precision and accuracy for routine analyses. A sensitive and convenient apparatus for the routine performance of radiometric chemical analysis is a special type of centrifuge which has been used in obtaining the data presented in this paper. The radioactivity of the solution is measured while the centrifuge is spinning. This device has been used as the basis for an automatic analyser for phosphate ion, programmed to follow a sequence of unknown sampling, reagent mixing, centrifugation, counting data presentation, and phosphate replenishment. This analyser can repeatedly measure phosphate-concentration in the range of 5 to 50 ppm with an accuracy of ±5%. (author)

  16. Application of qualitative analysis to IAEA-SPE-4 calculations

    International Nuclear Information System (INIS)

    Quantitative evaluation of thermal-hydraulic code uncertainties is a necessary step in the code assessment process, above all if best-estimate codes are utilized for licensing purposes. In this study the qualitative analysis of the IAEA-SPE-4 pre- and post-test code calculations was performed to show if quantitative analysis for IAEA-SPE-4 experiment was performed on PMK2 facility which simulated cold leg break. For qualitative assessment first part of a methodology based on the Fast Fourier Transform (FFT) was used, consisting from qualitative and quantitative code assessment. Qualitative analysis of considered calculations showed that FFT method could be used for quantitative analysis. However, some codes were not able in all cases to correctly predict core dryout occurrence. For these calculations, full application of quantitative part of FFT method is therefore limited. (author)

  17. Joint association analysis of bivariate quantitative and qualitative traits.

    Science.gov (United States)

    Yuan, Mengdie; Diao, Guoqing

    2011-01-01

    Univariate genome-wide association analysis of quantitative and qualitative traits has been investigated extensively in the literature. In the presence of correlated phenotypes, it is more intuitive to analyze all phenotypes simultaneously. We describe an efficient likelihood-based approach for the joint association analysis of quantitative and qualitative traits in unrelated individuals. We assume a probit model for the qualitative trait, under which an unobserved latent variable and a prespecified threshold determine the value of the qualitative trait. To jointly model the quantitative and qualitative traits, we assume that the quantitative trait and the latent variable follow a bivariate normal distribution. The latent variable is allowed to be correlated with the quantitative phenotype. Simultaneous modeling of the quantitative and qualitative traits allows us to make more precise inference on the pleiotropic genetic effects. We derive likelihood ratio tests for the testing of genetic effects. An application to the Genetic Analysis Workshop 17 data is provided. The new method yields reasonable power and meaningful results for the joint association analysis of the quantitative trait Q1 and the qualitative trait disease status at SNPs with not too small MAF. PMID:22373162

  18. Enhancing the quality and credibility of qualitative analysis.

    Science.gov (United States)

    Patton, M Q

    1999-12-01

    Varying philosophical and theoretical orientations to qualitative inquiry remind us that issues of quality and credibility intersect with audience and intended research purposes. This overview examines ways of enhancing the quality and credibility of qualitative analysis by dealing with three distinct but related inquiry concerns: rigorous techniques and methods for gathering and analyzing qualitative data, including attention to validity, reliability, and triangulation; the credibility, competence, and perceived trustworthiness of the qualitative researcher; and the philosophical beliefs of evaluation users about such paradigm-based preferences as objectivity versus subjectivity, truth versus perspective, and generalizations versus extrapolations. Although this overview examines some general approaches to issues of credibility and data quality in qualitative analysis, it is important to acknowledge that particular philosophical underpinnings, specific paradigms, and special purposes for qualitative inquiry will typically include additional or substitute criteria for assuring and judging quality, validity, and credibility. Moreover, the context for these considerations has evolved. In early literature on evaluation methods the debate between qualitative and quantitative methodologists was often strident. In recent years the debate has softened. A consensus has gradually emerged that the important challenge is to match appropriately the methods to empirical questions and issues, and not to universally advocate any single methodological approach for all problems. PMID:10591279

  19. The Utility of Template Analysis in Qualitative Psychology Research

    OpenAIRE

    Brooks, Joanna; McCluskey, Serena; Turley, Emma L.; King, Nigel

    2015-01-01

    Thematic analysis is widely used in qualitative psychology research, and in this article, we present a particular style of thematic analysis known as Template Analysis. We outline the technique and consider its epistemological position, then describe three case studies of research projects which employed Template Analysis to illustrate the diverse ways it can be used. Our first case study illustrates how the technique was employed in data analysis undertaken by a team of researchers in a larg...

  20. Ozonized oils: a qualitative and quantitative analysis.

    Science.gov (United States)

    Guinesi, Adriana Simionatto; Andolfatto, Carolina; Bonetti Filho, Idomeo; Cardoso, Arnaldo Alves; Passaretti Filho, Juliano; Farac, Roberta Vieira

    2011-01-01

    Most of the problems of endodontic origin have a bacterial etiological agent. Thus, there is a continued interest in seeking more effective chemical substances that can replace the camphorated paramonochiorophenol or antibiotics as intracanal medicaments. Among the possible substances, ozone has some interesting biological characteristics: bactericidal action, debriding effect, angiogenesis stimulation capacity and high oxidizing power. The purpose of this study was to chemically evaluate the presence of ozone in sunflower, castor, olive and almond oil, as well as in propylene glycol and byproducts of ozonation, such as formaldehyde. These compounds were ozonized, inserted into empty and sterile vials, and analyzed by testing the reaction between ozone and indigo, for determining the presence of ozone, and subjected to the chromotropic acid test for determining the presence of formaldehyde. It was observed complete absence of ozone in all samples tested and presence of formaldehyde. The bactericidal and healing action of ozonized oils could be attributed to products formed by the ozonation of mineral oils, such as formaldehyde, not to the ozone itself. PMID:21519646

  1. Qualitative Analysis of Emotions: Fear and Thrill.

    Science.gov (United States)

    Buckley, Ralf C

    2016-01-01

    People can speak, and this provides opportunities to analyze human emotions using perceived experiences communicated via language, as well as through measurement and imaging techniques that are also applicable to other higher animal species. Here I compare four qualitative methodological approaches to test if, and how, thrill depends on fear. I use eight high-risk, high-skill, real-life outdoor adventure recreation activities to provide the test circumstances. I present data from: >4000 person-days of participant observation; interviews with 40 expert practitioners; retrospective autoethnography of 50 critical incidents over 4 decades; and experimental autoethnography of 60 events. Results from different methods are congruent, but different approaches yield different insights. The principal findings are as follows. Individuals differ in their fear and thrill responses. The same individual may have different responses on different occasions. Fear boosts performance, but panic causes paralysis. Anxiety or apprehension prior to a risky action or event differs from fear experienced during the event itself. The intensity of pre-event fear generally increases with the immediacy of risk to life, and time to contemplate that risk. Fear must be faced, assessed and overcome in order to act. Thrill can occur either during or after a high-risk event. Thrill can occur without fear, and fear without thrill. Below a lower threshold of perceived risk, thrill can occur without fear. Between a lower and upper threshold, thrill increases with fear. Beyond the upper threshold, thrill vanishes but fear remains. This there is a sawtooth relation between fear and thrill. Perceived danger generates intense focus and awareness. Fear and other emotions can disappear during intense concentration and focus. Under high risk, the usual emotional sequence is fear before the action or event, then focus during the action or event, then thrill, relief, or triumph afterward. The emotionless state

  2. 黔产毛蒟提取物的制备及其化学成分的定性分析%Analysis of Piper puberulum (Benth.) Maxim.extracts preparation and the preliminary qualitative chemical composition

    Institute of Scientific and Technical Information of China (English)

    杨艳; 吴芹; 龚其海; 徐世兵; 石京山

    2015-01-01

    Objective To investigate optimal extraction process of Piper puberulum ( Benth.) Maxim.and qualitative analyze the chemical component of the extracts.Methods Method of solvent heating reflux was used for extraction.On the basis of single factor experiment, L9 (34 ) orthogonal experiment was designed with the variants of extraction frequency, time, material-liquid ratio, and immersion time.Extraction rate as index, extraction processes were optimized to achieve best extraction.The extracts, including total extract, water elution, and ethanol elution, were physiochemically analysed to achieve an initial qualitative result.Results The optimal extraction process was: extractions 3 times for 2 hours, with an 1︰30 material -liquid ratio and 2 hours of immersion, Initial qualitative analyzed the total extracts containing amino acids, polypeptides, proteins, alkaloids, steroids or triterpenes, flavones, saponins, polysaccharides, reducing sugars or glucosides, cumarins, terpene lactones, phenols, and tannins.The water elution containing: amino acids, polypeptides, proteins, saponins, polysaccharides, reducing sugars or glucosides, cumarins, and terpene lactones.The ethanol elution containing: amino acids, polypeptides, proteins, alkaloids, steroids or triterpenes, flavones, polysaccharides, reducing sugars or glucosides, phenols, and tanins.Conclusion The experiments show that optimal extraction process can achieve high extraction yield, stable and practical.%目的:考察黔产毛蒟提取物制备的最佳工艺,定性分析各提取物的化学成分。方法采用溶剂回流加热法进行提取。在单因素试验的基础上,以提取次数、提取时间、料液比和浸泡时间为因素安排L9(34)正交试验,以提取率为指标,优选黔产毛蒟提取的最佳工艺;经D-101大孔吸附树脂分离,得到黔产毛蒟水洗脱液、醇洗脱液;采用理化分析方法对黔产毛蒟提取物进行初步定性分析。结果提取

  3. Effect of consolidate application of organic and chemical fertilizers on the physical and chemical traits of soil and qualitative index of corn (Zea mays L plants

    Directory of Open Access Journals (Sweden)

    Esmaeil Namazi

    2015-06-01

    Full Text Available Present study was conducted to analysis the effect of Vermicompost and chemical nitrogen fertilizer on physical and chemical traits of soil's and qualitative indexes of corn plant. A factorial test with complete random block designs with 4 repetitions was conducted in the year of 2012. Three doses of chemical nitrogen fertilizers viz 50, 75 & 100 kg/hectare and two level of vermicompost viz 5 & 10 tons/hectare were used either individually or in combination with each others. Results of the study revealed that the use of Vermicompost and chemical nitrogen fertilizer caused a significant increase in the percentage of seed oil contents. At individual application of chemical nitrogen fertilizer highest increment in seed oil content was reported at 100 kg/hectare application, while in combination it was reported higher in the combination of 75 kg/hectare chemical Nitrogen fertilizer and 10ton/hectare vermicompost. The least effective treatment of was the combination of 100 kg/hectare chemical nitrogen fertilizer and 10 tons/hectare vermicompost combination. The most bulk gravity and real gravity is due to the treatment of Nitrogen chemical fertilizer at 50kg/hectare of soil test and without the use of vermicompost and the least bulk and real gravity of soil belong to the treatment of Nitrogen chemical fertilizer at the amount of 100kg/hectare of soil test and use of vermicompost at the amount of 10 tons in hectare.

  4. ADHD in college: A qualitative analysis.

    Science.gov (United States)

    Lefler, Elizabeth K; Sacchetti, Gina M; Del Carlo, Dawn I

    2016-06-01

    Attention-deficit/hyperactivity disorder (ADHD) affects many adults and is particularly impairing for emerging adults enrolled in college. Research has shown substantial academic impairment for these individuals. However, research on ADHD impairment has largely been quantitative and focused on children. Therefore, the current study employed Interpretative Phenomenological Analysis to explore the lived experience of college students with ADHD with the following two research questions: (1) What is it like to be a college student with ADHD? and (2) What resources are utilized by college students with ADHD? Thirty-six college students with ADHD were interviewed in focus group settings. Our participants reported a complex and mixed experience living with ADHD in college and varied use of treatments and other accommodations. Specifically, three Constructs emerged in the current study: Consequences of Diagnosis, Impairment, and Treatment Management. Implications for professionals working with these students and future directions for researchers are discussed. PMID:26825556

  5. Suicide and Prostitution among Street Youth: A Qualitative Analysis.

    Science.gov (United States)

    Kidd, Sean A.; Kral, Michael J.

    2002-01-01

    Presents results of a qualitative analysis of the narratives of 29 street youth in which they describe their experiences with, and understanding of, suicide. A history of attempted suicide was reported by 76% of the participants. Additionally it was found that prostitution was linked with their suicidal experiences and may account for the high…

  6. Filtrates and Residues: Qualitative Analysis of Some Transition Metals.

    Science.gov (United States)

    Kilner, Cary

    1985-01-01

    Describes a qualitative analysis laboratory in which students examine specific precipitates that can be used to identify copper, cobalt, nickel, and iron cations. The objective of the laboratory is to determine which test or sequence of tests unambiguously identifies each cation and to use the results to identify several unknowns. (JN)

  7. Qualitative analysis of the e-cloud formation

    Science.gov (United States)

    Heifets, S. A.

    2002-01-01

    The qualitative analysis of the electron cloud formation is presented. Two mechanisms of the cloud formation, generation of jets of primary photo-electrons and thermalization of electrons in the electron cloud, are analyzed and compared with simulations for the NLC damping ring.

  8. A Qualitative Analysis of Suicide Ideation among Manitoban Farmers

    Science.gov (United States)

    Sturgeon, Ryan; Morrissette, Patrick J.

    2010-01-01

    Canadian studies examining suicide among rural and farm populations remain scarce. To better understand this phenomenon, a qualitative research paradigm was used to analyze encounter forms of 29 individuals (24 men, 5 women) who called the Manitoban Farm and Rural Stress Line. Content analysis revealed 7 major themes: (a) coping mechanisms, (b)…

  9. Qualitative analysis of the CCEBC/EEAC method

    Institute of Scientific and Technical Information of China (English)

    LIAO; Haohui; TANG; Yun

    2004-01-01

    The CCEBC/EEAC method is an effective method in the quantitative analysis of power system transient stability. This paper provides a qualitative analysis of the CCEBC/EEAC method and shows that from a geometrical point of view, the CCCOI-RM transformation used in the CCEBC/EEAC method can be regarded as a projection of the variables of the system model on a weighted vector space, from which a generalized(-P)-(-δ) trajectory is obtained. Since a transient process of power systems can be approximately regarded as a time-piecewise simple Hamiltonian system, in order to qualitatively analyse the CCEBC/EEAC method, this paper compares the potential energy of a two-machine infinite bus system with its CCEBC/EEAC energy. Numerical result indicates their similarity. Clarifying the qualitative relation between these two kinds of energies is significant in verifying mathematically the CCEBC/EEAC method for judging the criterion of power system transient stability. Moreover, the qualitative analysis of the CCEBC/EEAC method enables us to better understand some important phenomena revealed by quantitative analysis, such as multi-swing loss of stability and isolated stable domain.

  10. Utilizing Problem-Based Learning in Qualitative Analysis Lab Experiments

    Science.gov (United States)

    Hicks, Randall W.; Bevsek, Holly M.

    2012-01-01

    A series of qualitative analysis (QA) laboratory experiments utilizing a problem-based learning (PBL) module has been designed and implemented. The module guided students through the experiments under the guise of cleaning up a potentially contaminated water site as employees of an environmental chemistry laboratory. The main goal was the…

  11. Validation of Competencies in E-Portfolios: A Qualitative Analysis

    Science.gov (United States)

    Zawacki-Richter, Olaf; Hanft, Anke; Baecker, Eva Maria

    2011-01-01

    This paper uses the example of an Internet-based advanced studies course to show how the portfolio method, as a competence-based form of examination, can be integrated in a blended learning design. Within the framework of a qualitative analysis of project portfolios, we examined which competencies are documented and how students reflected on their…

  12. An Array of Qualitative Data Analysis Tools: A Call for Data Analysis Triangulation

    Science.gov (United States)

    Leech, Nancy L.; Onwuegbuzie, Anthony J.

    2007-01-01

    One of the most important steps in the qualitative research process is analysis of data. The purpose of this article is to provide elements for understanding multiple types of qualitative data analysis techniques available and the importance of utilizing more than one type of analysis, thus utilizing data analysis triangulation, in order to…

  13. Simultaneous Qualitative and Quantitative Analysis of Multiple Chemical Constituents in YiQiFuMai Injection by Ultra-Fast Liquid Chromatography Coupled with Ion Trap Time-of-Flight Mass Spectrometry.

    Science.gov (United States)

    Liu, Chunhua; Ju, Aichun; Zhou, Dazheng; Li, Dekun; Kou, Junping; Yu, Boyang; Qi, Jin

    2016-01-01

    YiQiFuMai injection (YQFM) is a modern lyophilized powder preparation derived from the traditional Chinese medicine Sheng-mai san (SMS) used for treating cardiovascular diseases, such as chronic heart failure. However, its chemical composition has not been fully elucidated, particularly for the preparation derived from Ophiopogon japonicus. This study aimed to establish a systematic and reliable method to quickly and simultaneously analyze the chemical constituents in YQFM by ultra-fast liquid chromatography coupled with ion trap time-of-flight mass spectrometry (UFLC-IT-TOF/MS). Sixty-five compounds in YQFM were tentatively identified by comparison with reference substances or literature data. Furthermore, twenty-one compounds, including three ophiopogonins, fifteen ginsenosides and three lignans were quantified by UFLC-IT-TOF/MS. Notably, this is the first determination of steroidal saponins from O. japonicus in YQFM. The relative standard deviations (RSDs) of intra- and inter-day precision, reproducibility and stability were <4.9% and all analytes showed good linearity (R² ≥ 0.9952) and acceptable recovery of 91.8%-104.2% (RSD ≤ 5.4%), indicating that the methods were reliable. These methods were successfully applied to quantitative analysis of ten batches of YQFM. The developed approach can provide useful and comprehensive information for quality control, further mechanistic studies in vivo and clinical application of YQFM. PMID:27213307

  14. Simultaneous Qualitative and Quantitative Analysis of Multiple Chemical Constituents in YiQiFuMai Injection by Ultra-Fast Liquid Chromatography Coupled with Ion Trap Time-of-Flight Mass Spectrometry

    Directory of Open Access Journals (Sweden)

    Chunhua Liu

    2016-05-01

    Full Text Available YiQiFuMai injection (YQFM is a modern lyophilized powder preparation derived from the traditional Chinese medicine Sheng-mai san (SMS used for treating cardiovascular diseases, such as chronic heart failure. However, its chemical composition has not been fully elucidated, particularly for the preparation derived from Ophiopogon japonicus. This study aimed to establish a systematic and reliable method to quickly and simultaneously analyze the chemical constituents in YQFM by ultra-fast liquid chromatography coupled with ion trap time-of-flight mass spectrometry (UFLC-IT-TOF/MS. Sixty-five compounds in YQFM were tentatively identified by comparison with reference substances or literature data. Furthermore, twenty-one compounds, including three ophiopogonins, fifteen ginsenosides and three lignans were quantified by UFLC-IT-TOF/MS. Notably, this is the first determination of steroidal saponins from O. japonicus in YQFM. The relative standard deviations (RSDs of intra- and inter-day precision, reproducibility and stability were <4.9% and all analytes showed good linearity (R2 ≥ 0.9952 and acceptable recovery of 91.8%–104.2% (RSD ≤ 5.4%, indicating that the methods were reliable. These methods were successfully applied to quantitative analysis of ten batches of YQFM. The developed approach can provide useful and comprehensive information for quality control, further mechanistic studies in vivo and clinical application of YQFM.

  15. Microprocessors in automatic chemical analysis

    International Nuclear Information System (INIS)

    Application of microprocessors to programming and computing of solutions chemical analysis by a sequential technique is examined. Safety, performances reliability are compared to other methods. An example is given on uranium titration by spectrophotometry

  16. Qualitative analysis of powder x-ray diffraction data

    International Nuclear Information System (INIS)

    Full text: The main task of qualitative analysis is the determination of the presence of major, minor and if practical trace phases in a sample. The attainment of this goal is dependent on the quality of alignment (line position and intensity) as well as quality of sample preparation. Identification is generally on the basis of structure and dependent on the use of reference patterns. There are inherent limitations to the use of reference patterns including lack of reference patterns for the phase of interest (rare), solid solutions or substitutions (likely) and poor quality of reference patterns (unusual). With multiphase samples, there are the added problems of line overlap or interference, determining minor or trace phases in the presence of major phases, the decrease of intensity with concentration and influence of mass absorption on intensities. Within multiphase samples there may be many phases, some of which are in low abundance. It is sometimes possible (and usually desirable) to fractionate the sample by some physical or chemical method (while attempting not to create new phases as a result). It is usually important and often critical to have available supplementary information about the sample - either chemical or physical, or a history of preparation or formation. A central issue is what constitutes a match. A match is an adequate accounting of the distribution of intensity in the diffraction pattern. The match can be thought of in terms of a sum of δ2θ (or δd/d) and/or δI/Iref, and the consistency with known information. The calculated measures give rise to the figures of merit (FOM) of search match programs. It must always be remembered that two compounds of the same space group and similar cell parameters (eg. FCC metals) are going to have very similar diffraction patterns - any search/match technique usually arrives at a stage where there is a list of possibilities that must be decided between. The range search-match techniques span manual based

  17. Chemical substructure analysis in toxicology

    International Nuclear Information System (INIS)

    A preliminary examination of chemical-substructure analysis (CSA) demonstrates the effective use of the Chemical Abstracts compound connectivity file in conjunction with the bibliographic file for relating chemical structures to biological activity. The importance of considering the role of metabolic intermediates under a variety of conditions is illustrated, suggesting structures that should be examined that may exhibit potential activity. This CSA technique, which utilizes existing large files accessible with online personal computers, is recommended for use as another tool in examining chemicals in drugs. 2 refs., 4 figs

  18. Chemical substructure analysis in toxicology

    Energy Technology Data Exchange (ETDEWEB)

    Beauchamp, R.O. Jr. [Center for Information on Toxicology and Environment, Raleigh, NC (United States)

    1990-12-31

    A preliminary examination of chemical-substructure analysis (CSA) demonstrates the effective use of the Chemical Abstracts compound connectivity file in conjunction with the bibliographic file for relating chemical structures to biological activity. The importance of considering the role of metabolic intermediates under a variety of conditions is illustrated, suggesting structures that should be examined that may exhibit potential activity. This CSA technique, which utilizes existing large files accessible with online personal computers, is recommended for use as another tool in examining chemicals in drugs. 2 refs., 4 figs.

  19. A Qualitative Report of the Ways High School Chemistry Students Attempt to Represent a Chemical Reaction at the Atomic/Molecular Level

    Science.gov (United States)

    Kern, Anne L.; Wood, Nathan B.; Roehrig, Gillian H.; Nyachwaya, James

    2010-01-01

    We report the findings of a large-scale (n = 1,337) qualitative descriptive analysis of U.S. high schools students' particulate representations of a chemical reaction, specifically, the combustion of methane. Data were collected as part of an end of course exam. Student representations were coded into 17 distinct subcategories under one of five…

  20. Intelligent support of X-ray qualitative analysis

    International Nuclear Information System (INIS)

    'X-ray Diffraction AI Qualitative Analysis System' which can support analytical operation was developed. The purpose of this development is that even a beginner analyst can obtain the accurate results as well as specialists. This system has three new functions. The first one is to determine the suitable measuring conditions automatically for samples or analytical aim. The second is to guide the method of peak search. And, the third is to determine searching conditions same as measuring conditions. These were realized by applying experts' knowledge with 'AI techniques' and were added to our qualitative analysis systems. A beginner analyses through dialogue with this system, and can get the same results as a specialist would get. (author)

  1. Qualitative content analysis of suicidal ideation in Korean college students.

    Science.gov (United States)

    Jo, Kae-Hwa; An, Gyeong Ju; Sohn, Ki-Cheul

    2011-01-01

    The suicide rate for ages 15-24 increased recently in South Korea. The purpose of this study was to understand the suicidal ideation using the qualitative content analysis in South Korean college students. The data were collected with non-structured open questions in 134 college students and were analyzed with qualitative content analysis. The collected materials were classified 2 categories, 6 themes, and 21 theme clusters. Two categories are emerged: (1) facilitators of suicidal ideation, and (2) inhibitors of suicidal ideation. This study identified that the facilitators of suicidal ideation are physical, psychological and societal concerns, and suggested that the inhibitors of suicidal ideation are influenced by religious and cultural context. These results presented that Buddhism and Confucianism had influence on reasons to not attempting suicide behavior as the inhibitor of suicidal ideation. In conclusion, cultural context should be considered to develop strategies for the suicide prevention in South Korean college student. PMID:21706996

  2. Intelligent support of X-ray qualitative analysis

    Energy Technology Data Exchange (ETDEWEB)

    Arai, Hiroshi; Uota, Atsushi; Ishida, Hidenobu [Shimadzu Corp., Kyoto (Japan)

    1995-03-01

    `X-ray Diffraction AI Qualitative Analysis System` which can support analytical operation was developed. The purpose of this development is that even a beginner analyst can obtain the accurate results as well as specialists. This system has three new functions. The first one is to determine the suitable measuring conditions automatically for samples or analytical aim. The second is to guide the method of peak search. And, the third is to determine searching conditions same as measuring conditions. These were realized by applying experts` knowledge with `AI techniques` and were added to our qualitative analysis systems. A beginner analyses through dialogue with this system, and can get the same results as a specialist would get. (author).

  3. Qualitative and quantitative analysis of volatile constituents from latrines.

    Science.gov (United States)

    Lin, Jianming; Aoll, Jackline; Niclass, Yvan; Velazco, Maria Inés; Wünsche, Laurent; Pika, Jana; Starkenmann, Christian

    2013-07-16

    More than 2.5 billion people defecate in the open. The increased commitment of private and public organizations to improving this situation is driving the research and development of new technologies for toilets and latrines. Although key technical aspects are considered by researchers when designing new technologies for developing countries, the basic aspect of offending malodors from human waste is often neglected. With the objective of contributing to technical solutions that are acceptable to global consumers, we investigated the chemical composition of latrine malodors sampled in Africa and India. Field latrines in four countries were evaluated olfactively and the odors qualitatively and quantitatively characterized with three analytical techniques. Sulfur compounds including H2S, methyl mercaptan, and dimethyl-mono-(di;tri) sulfide are important in sewage-like odors of pit latrines under anaerobic conditions. Under aerobic conditions, in Nairobi for example, paracresol and indole reached concentrations of 89 and 65 μg/g, respectively, which, along with short chain fatty acids such as butyric acid (13 mg/g) explained the strong rancid, manure and farm yard odor. This work represents the first qualitative and quantitative study of volatile compounds sampled from seven pit latrines in a variety of geographic, technical, and economic contexts in addition to three single stools from India and a pit latrine model system. PMID:23829328

  4. Qualitative Study of Substituent Effects on NMR 15N and 17O Chemical Shifts

    Science.gov (United States)

    Contreras, Rubén H.; Llorente, Tomás; Pagola, Gabriel I.; Bustamante, Manuel G.; Pasqualini, Enrique E.; Melo, Juan I.; Tormena, Cláudio F.

    2009-08-01

    A qualitative approach to analyze the electronic origin of substituent effects on the paramagnetic part of chemical shifts is described and applied to few model systems, where its potentiality can be appreciated. The formulation of this approach is based on the following grounds. The influence of different inter- or intramolecular interactions on a second-order property can be qualitatively predicted if it can be known how they affect the main virtual excitations entering into that second-order property. A set of consistent approximations are introduced in order to analyze the behavior of occupied and virtual orbitals that define some experimental trends of magnetic shielding constants. This approach is applied first to study the electronic origin of methyl-β substituent effects on both 15N and 17O chemical shifts, and afterward it is applied to a couple of examples of long-range substituent effects originated in charge transfer interactions such as the conjugative effect in aromatic compounds and σ-hyperconjugative interactions in saturated multicyclic compounds.

  5. Qualitative study of substituent effects on NMR (15)N and (17)O chemical shifts.

    Science.gov (United States)

    Contreras, Rubén H; Llorente, Tomás; Pagola, Gabriel I; Bustamante, Manuel G; Pasqualini, Enrique E; Melo, Juan I; Tormena, Cláudio F

    2009-09-10

    A qualitative approach to analyze the electronic origin of substituent effects on the paramagnetic part of chemical shifts is described and applied to few model systems, where its potentiality can be appreciated. The formulation of this approach is based on the following grounds. The influence of different inter- or intramolecular interactions on a second-order property can be qualitatively predicted if it can be known how they affect the main virtual excitations entering into that second-order property. A set of consistent approximations are introduced in order to analyze the behavior of occupied and virtual orbitals that define some experimental trends of magnetic shielding constants. This approach is applied first to study the electronic origin of methyl-beta substituent effects on both (15)N and (17)O chemical shifts, and afterward it is applied to a couple of examples of long-range substituent effects originated in charge transfer interactions such as the conjugative effect in aromatic compounds and sigma-hyperconjugative interactions in saturated multicyclic compounds. PMID:19685922

  6. Summary oral reflective analysis: a method for interview data analysis in feminist qualitative research.

    Science.gov (United States)

    Thompson, S M; Barrett, P A

    1997-12-01

    This article explores an innovative approach to qualitative data analysis called Summary Oral Reflective Analysis (SORA). The method preserves the richness and contextuality of in-depth interview data within a broader feminist philosophical perspective. This multidisciplinary approach was developed in two individual research programs within a cooperative, collaborative arrangement. It represents a creative response to perceived deficiencies in the pragmatics of qualitative data analysis where the maintenance of data contextuality is critical. PMID:9398939

  7. Qualitative analysis of hexane flour extract of spelt

    Directory of Open Access Journals (Sweden)

    Vujić Đura N.

    2013-01-01

    Full Text Available Gas chromatography with mass spectrometry (GC-MS was used for performing a qualitative analysis of the hexane flour extract of three samples of spelt. All the three samples were first treated with hexane and the obtained extracts were used for the analysis of the fatty acid lipid components. The transesterification reaction was performed using TMSH (trimethylsulfonium hydroxide, 0.2M in methanol, and the fatty acids were esterified from acylglycerol to methyl-esters. In all analyzed extracts, the predominant component was methyl linoleate, followed by methyl oleate and methyl palmitate. The subsequent tests, performed by cluster analysis, were used to compare the hexane flour extracts of different types of spelt. [Projekat Ministarstva nauke Republike Srbije, br. III46005 i br. TR 31066

  8. Qualitative analysis of certain generalized classes of quadratic oscillator systems

    International Nuclear Information System (INIS)

    We carry out a systematic qualitative analysis of the two quadratic schemes of generalized oscillators recently proposed by Quesne [J. Math. Phys. 56, 012903 (2015)]. By performing a local analysis of the governing potentials, we demonstrate that while the first potential admits a pair of equilibrium points one of which is typically a center for both signs of the coupling strength λ, the other points to a centre for λ < 0 but a saddle λ > 0. On the other hand, the second potential reveals only a center for both the signs of λ from a linear stability analysis. We carry out our study by extending Quesne’s scheme to include the effects of a linear dissipative term. An important outcome is that we run into a remarkable transition to chaos in the presence of a periodic force term fcosωt

  9. Qualitative analysis of certain generalized classes of quadratic oscillator systems

    Energy Technology Data Exchange (ETDEWEB)

    Bagchi, Bijan, E-mail: bbagchi123@gmail.com; Ghosh, Samiran, E-mail: sran-g@yahoo.com; Pal, Barnali, E-mail: barrna.roo@gmail.com; Poria, Swarup, E-mail: swarupporia@gmail.com [Department of Applied Mathematics, University of Calcutta, 92 Acharya Prafulla Chandra Road, Kolkata 700009 (India)

    2016-02-15

    We carry out a systematic qualitative analysis of the two quadratic schemes of generalized oscillators recently proposed by Quesne [J. Math. Phys. 56, 012903 (2015)]. By performing a local analysis of the governing potentials, we demonstrate that while the first potential admits a pair of equilibrium points one of which is typically a center for both signs of the coupling strength λ, the other points to a centre for λ < 0 but a saddle λ > 0. On the other hand, the second potential reveals only a center for both the signs of λ from a linear stability analysis. We carry out our study by extending Quesne’s scheme to include the effects of a linear dissipative term. An important outcome is that we run into a remarkable transition to chaos in the presence of a periodic force term fcosωt.

  10. Framing an Nuclear Emergency Plan using Qualitative Regression Analysis

    International Nuclear Information System (INIS)

    Since the arising on safety maintenance issues due to post-Fukushima disaster, as well as, lack of literatures on disaster scenario investigation and theory development. This study is dealing with the initiation difficulty on the research purpose which is related to content and problem setting of the phenomenon. Therefore, the research design of this study refers to inductive approach which is interpreted and codified qualitatively according to primary findings and written reports. These data need to be classified inductively into thematic analysis as to develop conceptual framework related to several theoretical lenses. Moreover, the framing of the expected framework of the respective emergency plan as the improvised business process models are abundant of unstructured data abstraction and simplification. The structural methods of Qualitative Regression Analysis (QRA) and Work System snapshot applied to form the data into the proposed model conceptualization using rigorous analyses. These methods were helpful in organising and summarizing the snapshot into an 'as-is' work system that being recommended as 'to-be'work system towards business process modelling. We conclude that these methods are useful to develop comprehensive and structured research framework for future enhancement in business process simulation. (author)

  11. Analisis cualitativo asistido por computadora Computer-assisted qualitative analysis

    Directory of Open Access Journals (Sweden)

    César A. Cisneros Puebla

    2003-01-01

    Full Text Available Los objetivos de este ensayo son: por un lado, presentar una aproximación a la experiencia hispanoamericana en el Análisis Cualitativo Asistido por Computadora (ACAC al agrupar mediante un ejercicio de sistematización los trabajos realizados por diversos colegas provenientes de disciplinas afines. Aunque hubiese querido ser exhaustivo y minucioso, como cualquier intento de sistematización de experiencias, en este ejercicio son notables las ausencias y las omisiones. Introducir algunas reflexiones teóricas en torno al papel del ACAC en el desarrollo de la investigación cualitativa a partir de esa sistematización y con particular énfasis en la producción del dato es, por otro lado, objetivo central de esta primera aproximación.The aims of this article are: on the one hand, to present an approximation to the Hispano-American experience on Computer-Assisted Qualitative Data Analysis (CAQDAS, grouping as a systematization exercise the works carried out by several colleagues from related disciplines. Although attempting to be exhaustive and thorough - as in any attempt at systematizing experiences - this exercise presents clear lacks and omissions. On the other hand, to introduce some theoretical reflections about the role played by CAQDAS in the development of qualitative investigation after that systematization, with a specific focus on data generation.

  12. A qualitative analysis of EHR clinical document synthesis by clinicians.

    Science.gov (United States)

    Farri, Oladimeji; Pieckiewicz, David S; Rahman, Ahmed S; Adam, Terrence J; Pakhomov, Serguei V; Melton, Genevieve B

    2012-01-01

    Clinicians utilize electronic health record (EHR) systems during time-constrained patient encounters where large amounts of clinical text must be synthesized at the point of care. Qualitative methods may be an effective approach for uncovering cognitive processes associated with the synthesis of clinical documents within EHR systems. We utilized a think-aloud protocol and content analysis with the goal of understanding cognitive processes and barriers involved as medical interns synthesized patient clinical documents in an EHR system to accomplish routine clinical tasks. Overall, interns established correlations of significance and meaning between problem, symptom and treatment concepts to inform hypotheses generation and clinical decision-making. Barriers identified with synthesizing EHR documents include difficulty searching for patient data, poor readability, redundancy, and unfamiliar specialized terms. Our study can inform recommendations for future designs of EHR clinical document user interfaces to aid clinicians in providing improved patient care. PMID:23304398

  13. A Qualitative Analysis of Rural Water Sector Policy Documents

    Directory of Open Access Journals (Sweden)

    Anna Le Gouais

    2013-10-01

    Full Text Available This paper summarises the findings of a review of policy and strategy documents published circa 2008 by a diverse set of eleven development partners in the rural water sector. It was carried out as part of the Triple-S (Sustainable Services at Scale Initiative using a Qualitative Document Analysis (QDA approach to assess the extent to which the reviewed documents align with a set of 'building blocks' identified by Triple-S as integral to ensuring sustainable service delivery in the rural water sector. Based on the reviewed documents, the policies of the development partners included in this analysis demonstrate a clear commitment towards a number of important elements believed to be necessary for sustainable service delivery including learning and adaptive management, coordination and collaboration, capacity support for local government, and harmonisation and alignment. However, the analysis of the policy documents results in low scores for planning for asset management (i.e. renewals and recognition and promotion of alternative service delivery options to community management (e.g. Self-supply of, or delegated management to, the private sector. Thus, this study indicates that these areas, considered by Triple-S to be crucial for improving sustainability, are relatively neglected and merit more attention in the policies of organisations.

  14. Possibilities of Moessbauer spectroscopy for chemical analysis

    International Nuclear Information System (INIS)

    Full text: The Moessbauer spectroscopy technique belongs to few methods of defining the phase state or crystallographic sites of a substance. The Moessbauer spectra bear information on various hyperfine interactions, many of which are indirectly related to the chemical nature of the Moessbauer atom and its nearest environment. Determination of the parameters of hyperfine interactions that can be extracted from Moessbauer spectra and used for qualitative analysis is a routine task. In the present work, we studied the influence of various factors on experimental errors encountered in quantitatively defining the phase composition or site populations of the substance under study, such as the measurements geometry, Lamb-Moessbauer coefficients, absorber thickness, efficiency and dead time of the detection system and spectral line shape. The absolute f measurements were made using the 'black' absorber method. Moessbauer measurements were carried out with carefully controlled background intensities, since the accuracy of f evaluation directly depends on the measurement of the background. The influence of a non-uniformity of samples on the results of the quantitative analysis is discussed. The data analysis was divided into two parts: removal of instrumental artifacts by folding and baseline correction and deconvolution to extract the hyperfine parameters of individual local environments. In our approach, calibration graphs were drawn by measuring the spectra of a series of analogous samples having different known concentrations. For the same purpose, the internal standard method was also used. Experimental data are presented for phase analyses of different samples. (author)

  15. Using Qualitative Hazard Analysis to Guide Quantitative Safety Analysis

    Science.gov (United States)

    Shortle, J. F.; Allocco, M.

    2005-01-01

    Quantitative methods can be beneficial in many types of safety investigations. However, there are many difficulties in using quantitative m ethods. Far example, there may be little relevant data available. This paper proposes a framework for using quantitative hazard analysis to prioritize hazard scenarios most suitable for quantitative mziysis. The framework first categorizes hazard scenarios by severity and likelihood. We then propose another metric "modeling difficulty" that desc ribes the complexity in modeling a given hazard scenario quantitatively. The combined metrics of severity, likelihood, and modeling difficu lty help to prioritize hazard scenarios for which quantitative analys is should be applied. We have applied this methodology to proposed concepts of operations for reduced wake separation for airplane operatio ns at closely spaced parallel runways.

  16. Chemical analysis by nuclear techniques

    International Nuclear Information System (INIS)

    This state art report consists of four parts, production of micro-particles, analysis of boron, alpha tracking method and development of neutron induced prompt gamma ray spectroscopy (NIPS) system. The various methods for the production of micro-paticles such as mechanical method, electrolysis method, chemical method, spray method were described in the first part. The second part contains sample treatment, separation and concentration, analytical method, and application of boron analysis. The third part contains characteristics of alpha track, track dectectors, pretreatment of sample, neutron irradiation, etching conditions for various detectors, observation of track on the detector, etc. The last part contains basic theory, neutron source, collimator, neutron shields, calibration of NIPS, and application of NIPS system

  17. Caring for an Individual with Autism Disorder: A Qualitative Analysis

    Science.gov (United States)

    Phelps, Kenneth W.; Hodgson, Jennifer L.; McCammon, Susan L.; Lamson, Angela L.

    2009-01-01

    Background: Caregivers in this qualitative study reported the multidimensional implications of having a child with autism on their family's lives and overall functioning. Method: The Effects of the Situation Questionnaire (Yatchmenoff, Koren, Friesen, Gordon, & Kinney, 1998) was used to gather qualitative data from 80 caregivers. Colaizzi's (1978)…

  18. Academic Impact of Qualitative Studies in Healthcare: Bibliometric Analysis

    Science.gov (United States)

    Mori, Hiroko; Nakayama, Takeo

    2013-01-01

    Context Although qualitative studies are becoming more appreciated in healthcare, the number of publications of quality studies remains low. Little is known about the frequency and characteristics of citation in qualitative studies. Objective To compare the academic impact of qualitative studies to that of two quantitative studies: systematic reviews and randomized controlled trials. Methods Publications in BMJ between 1997 and 2006 (BMJ’s median impact factor was 7.04 during this period) employing qualitative methods were matched to two quantitative studies appearing the same year using PubMed. Using Web of Science, citations within a 24-month publication period were determined. Additionally, three hypotheses were examined: qualitative studies are 1) infrequently cited in original articles or reviews; 2) rarely cited by authors in non-English-speaking countries; and 3) more frequently cited in non-medical disciplines (e.g., psychology or sociology). Results A total of 121 qualitative studies, 270 systematic reviews, and 515 randomised controlled trials were retrieved. Qualitative studies were cited a total of 1,089 times, with a median of 7.00 times (range, 0–34) for each study. Matched systematic reviews and randomized controlled trials were cited 2,411times and 1,600 times, respectively. With respect to citing documents, original articles and reviews exceeded 60% for each study design. Relative to quantitative studies, qualitative studies were cited more often by authors in English-speaking countries. With respect to subject area, medical disciplines were more frequently cited than non-medical disciplines for all three study designs (>80%). Conclusion The median number of citations for qualitative studies was almost the same as the median of BMJ’s impact factor during the survey period. For a suitable evaluation of qualitative studies in healthcare, it will be necessary to develop a reporting framework and include explicit discussions of clinical

  19. Nanotechnology patents in the automotive industry (a quantitative & qualitative analysis).

    Science.gov (United States)

    Prasad, Raghavendra; Bandyopadhyay, Tapas K

    2014-01-01

    The aim of the article is to present a trend in patent filings for application of nanotechnology to the automobile sector across the world, using the keyword-based patent search. Overviews of the patents related to nano technology in the automobile industry have been provided. The current work has started from the worldwide patent search to find the patents on nanotechnology in the automobile industry and classify the patents according to the various parts of an automobile to which they are related and the solutions which they are providing. In the next step various graphs have been produced to get an insight into various trends. In next step, analysis of patents in various classifications, have been performed. The trends shown in graphs provide the quantitative analysis whereas; the qualitative analysis has been done in another section. The classifications of patents based on the solution they provide have been performed by reading the claims, titles, abstract and full texts separately. Patentability of nano technology inventions have been discussed in a view to give an idea of requirements and statutory bars to the patentability of nanotechnology inventions. Another objective of the current work is to suggest appropriate framework for the companies regarding use of nano technology in the automobile industry and a suggestive strategy for patenting of the inventions related to the same. For example, US Patent, with patent number US2008-019426A1 discusses the invention related to Lubricant composition. This patent has been studied and classified to fall under classification of automobile parts. After studying this patent, it is deduced that, the problem of friction in engine is being solved by this patent. One classification is the "automobile part" based while other is the basis of "problem being solved". Hence, two classifications, namely reduction in friction and engine were created. Similarly, after studying all the patents, a similar matrix has been created

  20. Studies on qualitative and quantitative chemical changes in gamma irradiated fish and fishery products in India

    International Nuclear Information System (INIS)

    Studies on qualitative and quantitative changes in lipids and allied constituents of fresh as well as salted dehydrated Indian mackerel (Rastrelliger kanagurta) during storage after gamma-irradiation have been carried out. The samples were evaluated subjectively as well by determining various physico-chemical parameters such as moisture content, total volatile basic nitrogen (TVBN), trimethyl amine nitrogen (TMAN), lipid content, iodine value (IV), peroxide value (PV), thiobarbituric acid (TBA) value, glyceride and free fatty acid (FFA) content. Shelf life extension of radurized fresh (150 Krad) as well as salted dehydrated (200 Krad) Indian mackerel during ice-temperature (0-20C) and ambient temperature (25-300C) storage, respectively, was observed without detectable rancidity and off-flavours. However, the extended storage life was dependent upon storage temperature in the case of fresh fish and upon moisture content in the case of salted dehydrated fish. Besides a suppression in TVBN and TMAN values, the changes in the physico-chemical parameters including the lipid composition of the irradiated samples in both cases were parallel to those in the unirradiated controls. No new compounds were detected in any of the lipid samples of the irradiated fish by thin-layer gas-liquid chromatography. Pasteurization dose of irradiation (200 Krad) did not influence the yield or the composition of the total volatiles of salted dehydrated fish. The commercial sun-dried products gave rise to two-fold increases in the yield of total volatiles, which showed composition comparable to that of the laboratory processed irradiated samples

  1. Qualitative chemical analysis of plutonium by Alpha spectroscopy

    International Nuclear Information System (INIS)

    In this work the separation and purification of plutonium from irradiated uranium was done. The plutonium, produced by the irradiation of uranium in a nuclear reactor and the β decay of 239 Np, was stabilized to Pu +4 with sodium nitrite. Plutonium was separated from the fission products and uranium by ion exchange using the resin Ag 1 X 8. It was electrodeposited on stainless steel discs and the alpha radioactivity of plutonium was measured in a surface barrier detector. The results showed that plutonium was separated with a radiochemical purity higher than 99 %. (Author)

  2. MR imaging of Minamata disease. Qualitative and quantitative analysis

    International Nuclear Information System (INIS)

    Minamata disease (MD), a result of methylmercury poisoning, is a neurological illness caused by ingestion of contaminated seafood. We evaluated MR findings of patients with MD qualitatively and quantitatively. Magnetic resonance imaging at 1.5 Tesla was performed in seven patients with MD and in eight control subjects. All of our patients showed typical neurological findings like sensory disturbance, constriction of the visual fields, and ataxia. In the quantitative image analysis, inferior and middle parts of the cerebellar vermis and cerebellar hemispheres were significantly atrophic in comparison with the normal controls. There were no significant differences in measurements of the basis pontis, middle cerebellar peduncles, corpus callosum, or cerebral hemispheres between MD and the normal controls. The calcarine sulci and central sulci were significantly dilated, reflecting atrophy of the visual cortex and postcentral cortex, respectively. The lesions located in the calcarine area, cerebellum, and postcentral gyri were related to three characteristic manifestations of this disease, constriction of the visual fields, ataxia, and sensory disturbance, respectively. MR imaging has proved to be useful in evaluating the CNS abnormalities of methylmercury poisoning. (author)

  3. Qualitative and quantitative analysis of Chinese herb fructus chaenomelis

    Institute of Scientific and Technical Information of China (English)

    Shuhu Du; Lina Chen; Kunfang Ma; Hongjian Ji

    2007-01-01

    Objective: To establish reliable methods for evaluating the quality of Chinese herb fructus chaenomelis. Methods: Qualitative analysis by Thin layer chromatography (TLC) , reference substances were Chaenomeles speciosa (Sweet) Nakai and oleanolic acid, a ethanol solution. In the system of high performance liquid chromatography(HPLC), a Prontosil Eurobond C18 column (250 mm×4.0 the flow rate was 1.0 ml/min with UV detected at 210 nm, the column temperature was maintained at room temperature. Results:In the system of TLC, oleanolic acid was separated successfully. In HPLC, the linear ranges of oleanotic acid and ursolic acid were 5.89-13.73 μg (R=0.9990)and 6.84~15.96 μg (R=0.9990), respectively. The average recoveries of oleanolic acid and ursolic acid were 97.52% (RSD=2.58% ), 98.21% (RSD=2.23%), respectively. Conclusion: The established TLC method can easily distinguish Chinese herb fructus chaenomelis from other commonly used crude drugs of the same family .The HPLC method for determining oleanolic acid and ursolic acid is simple, reproducible, accurate and feasible. The methods reported in this paper can be used scientifically and effectively to evaluate the quality of Chinese herb fructus chaenomelis.

  4. Pharmacognostical Evaluation and Qualitative Analysis of Saccharum spontaneum (L. Root

    Directory of Open Access Journals (Sweden)

    Mohammad Khalid

    2011-10-01

    Full Text Available Saccharum spontaneum L. known as Kasa (Family: Poaceae is a traditional herb, it has excellence medicinal value; has been advocated in the treatment gynaecological troubles, respiratory disease. Roots are used as galactagogue and diuretic and in ayurveda system roots are also used as astringent, emollient, refrigerant, diuretic, purgative, tonic, aphrodisiac and useful in treatment of dyspepsia, burning sensation, piles and sexual weakness. Various parameters like macroscopy, microscopy, fluorescence analysis as well as extractive value and quantitative phytochemical screening of different extractives were studied. The major components of the extractives like total phenolic, total flavonoids were also estimated respectively. The characteristic of microscopy, physicochemical, fluorescence analysis and quantitative chemical screening were performed in root extractives of the plant material as a mean of authentication.

  5. Relevance of aerosol size spectrum analysis as support to qualitative source apportionment studies

    International Nuclear Information System (INIS)

    This work presents a diagnostic methodology in support to source apportionment studies to identify remote and local pollution sources. It is based on the temporal analysis of both PM size distributions and PM size fraction correlation along with natural radioactivity measurements as index of Planetary Boundary Layer dynamic. A correlation drop is indicative of changing aerosol sources. When this observation is coupled with decreasing level of natural radioactivity and increasing aerosol concentration, be it coarse or fine, it is indicative of the inflow of remote polluted air masses. The methodology defines in which size range operates the contribution of remote pollution sources. It was applied to two PM10 pollution episodes: the first involved the advection of coarse PM, the second entailed the inflow of two air masses, one transporting coarse dust and the other fine PM. Dust models and backward trajectories analysis confirmed such results, indicating the air mass provenience. - Highlights: ► Tool as a qualitative support to source apportionment studies. ► Time and size resolved aerosol and natural radioactivity measurements. ► Methodology gives immediate information on PM presence from local/remote sources. ► Long range transport episodes are demonstrated without any chemical analysis. ► Dust models and backward-trajectory analysis used for confirming the results found. - Long range transport episodes are clearly demonstrated by time and size resolved aerosol and natural radioactivity measurements without any chemical analysis.

  6. Qualitative and temporal reasoning in engine behavior analysis

    Science.gov (United States)

    Dietz, W. E.; Stamps, M. E.; Ali, M.

    1987-01-01

    Numerical simulation models, engine experts, and experimental data are used to generate qualitative and temporal representations of abnormal engine behavior. Engine parameters monitored during operation are used to generate qualitative and temporal representations of actual engine behavior. Similarities between the representations of failure scenarios and the actual engine behavior are used to diagnose fault conditions which have already occurred, or are about to occur; to increase the surveillance by the monitoring system of relevant engine parameters; and to predict likely future engine behavior.

  7. Qualitative and Quantitative Analysis of Andrographis paniculata by Rapid Resolution Liquid Chromatography/Time-of-Flight Mass Spectrometry

    OpenAIRE

    Jian-Fei Qin; Zhi-Yuan Jiang; Zhao Jin; Shi-Ping Liu; Yong-Xi Song

    2013-01-01

    A rapid resolution liquid chromatography/time-of-flight tandem mass spectrometry (RRLC-TOF/MS) method was developed for qualitative and quantitative analysis of the major chemical constituents in Andrographis paniculata. Fifteen compounds, including flavonoids and diterpenoid lactones, were unambiguously or tentatively identified in 10 min by comparing their retention times and accurate masses with standards or literature data. The characteristic fragmentation patterns of flavonoids and diter...

  8. An Improved Flame Test for Qualitative Analysis Using a Multichannel UV-Visible Spectrophotometer

    Science.gov (United States)

    Blitz, Jonathan P.; Sheeran, Daniel J.; Becker, Thomas L.

    2006-01-01

    Qualitative analysis schemes are used in undergraduate laboratory settings as a way to introduce equilibrium concepts and logical thinking. The main component of all qualitative analysis schemes is a flame test, as the color of light emitted from certain elements is distinctive and a flame photometer or spectrophotometer in each laboratory is…

  9. The Development of a Web-Based Virtual Environment for Teaching Qualitative Analysis of Structures

    Science.gov (United States)

    O'Dwyer, D. W.; Logan-Phelan, T. M.; O'Neill, E. A.

    2007-01-01

    The current paper describes the design and development of a qualitative analysis course and an interactive web-based teaching and assessment tool called VSE (virtual structural environment). The widespread reliance on structural analysis programs requires engineers to be able to verify computer output by carrying out qualitative analyses.…

  10. Qualitative Organic Analysis: An Efficient, Safer, and Economical Approach to Preliminary Tests and Functional Group Analysis

    Science.gov (United States)

    Dhingra, Sunita; Angrish, Chetna

    2011-01-01

    Qualitative organic analysis of an unknown compound is an integral part of the university chemistry laboratory curriculum. This type of training is essential as students learn to approach a problem systematically and to interpret the results logically. However, considerable quantities of waste are generated by using conventional methods of…

  11. Qualitative criteria of urbanism and brands: A comparative analysis

    Directory of Open Access Journals (Sweden)

    Andrej Pompe

    2014-06-01

    Full Text Available Interactivity, multidisciplinarity, synergy and interdependence are all concepts that are clearly intertwined with managing every responsible city and its leaders. Urbanism plays a significant role among the disciplines that affect the uniqueness and competitive position of a city. None of the cities that are successful in a competitive environment would be a noteworthy and powerful brand if they did not possess recognisable, singular and distinctive elements of urbanism that made them unique. This article proceeds from the hypothesis that urbanism with qualitative solutions helps shape a city’s brand and that the criteria that demonstrate this are in agreement with the qualitative criteria of a brand. In reviewing the scholarly literature on urbanism as brands and branding itself, it is shown that qualitative urbanism criteria show great similarity with qualitative brand criteria, and therefore have a decisive effect on a city brand and its placement in a competitive urban market. Qualitative urbanism and brand criteria are closely linked and tend to be cast in the same mould, although they differ in formulation and level of implementation. These acknowledged similarities represent a step forward in integral operation, management, communication and urban marketing. They also enable more or less unconnected areas of urbanism and marketing to connect. The positive consequences of understanding the connection of both fields will be long term and will build a recognisable, consistent and stakeholder friendly reputation for a city. These findings are a golden opportunity for urban management and confirm the need for a comprehensive approach to urban management.

  12. Qualitative Psychology Nexus, Vol. III: Research Questions and Matching Methods of Analysis

    OpenAIRE

    2003-01-01

    This third volume of the Qualitative Psychology Nexus documents the contributions and discussions at the third international workshop on qualitative psychology, organized by the Center for Qualitative Psychology under the title "Research Questions and Matching Methods of Analysis." The meeting took place in October 2002 in Perlora, Spain. The ongoing efforts of our Spanish colleagues, especially Ramón Pérez Pérez and Olga Pérez, made it possible for this meeting to take place at a wonderful ...

  13. Discovering the value in using Leximancer for complex qualitative data analysis

    OpenAIRE

    Gapp, R.; Stewart, H.; Harwood, I.A.; Woods, P.

    2013-01-01

    Advocates of qualitative research are often challenged to justify their choice of method both as a consequence of history and the inherent nature of qualifying as opposed to quantifying. Verifying qualitative research is seen as a way of removing some of the angst by promoting completeness, trustworthiness and reliability. Computer programmes are widely used in quantitative research and less so by qualitative researchers because of the complexity of analysis required. Recent improvements in C...

  14. Coulometry in quantitative chemical analysis and physico-chemical research

    International Nuclear Information System (INIS)

    Electroanalytical methods such as potentiometry, amperometry, coulometry and voltammetry are well established and routinely employed in quantitative chemical analysis as well as in chemical research. Coulometry is one of the most important electroanalytical techniques, which involves change in oxidation state of electro active species by heterogeneous electron transfer. In primary coulometric method, uranium is determined at mercury pool electrode and plutonium at platinum gauze electrode

  15. Teaching principles of qualitative analysis to industrial design engineers

    NARCIS (Netherlands)

    Stappers, P.J.

    2012-01-01

    Doing qualitative field research has become a standard part of academic human-centered design education. Part of the challenge is to bring design students a thorough understanding of research methods, and practical skills in performing small scale user research as part of design projects. This invo

  16. Towards a Methodological Improvement of Narrative Inquiry: A Qualitative Analysis

    Science.gov (United States)

    Abdallah, Mahmoud Mohammad Sayed

    2009-01-01

    The article suggests that though narrative inquiry as a research methodology entails free conversations and personal stories, yet it should not be totally free and fictional as it has to conform to some recognized standards used for conducting educational research. Hence, a qualitative study conducted by Russ (1999) was explored as an exemplar…

  17. Qualitative Data Analysis: A Methods Sourcebook. Third Edition

    Science.gov (United States)

    Miles, Matthew B.; Huberman, A. Michael; Saldana, Johnny

    2014-01-01

    The Third Edition of Miles & Huberman's classic research methods text is updated and streamlined by Johnny Saldaña, author of "The Coding Manual for Qualitative Researchers." Several of the data display strategies from previous editions are now presented in re-envisioned and reorganized formats to enhance reader accessibility and…

  18. External Dynamics Influencing Tattooing among College Students: A Qualitative Analysis

    Science.gov (United States)

    Firmin, Michael; Tse, Luke; Foster, Janna; Angelini, Tammy

    2012-01-01

    The study utilized qualitative research methodology to assess external dynamics and their influences on tattooing practices among college students. Twenty-four undergraduates supplied in-depth interviews regarding the external variables related to college students' decisions to tattoo. The present research follows (Tse, Firmin, Angelini, & Foster,…

  19. A Qualitative Analysis of Online Gaming Addicts in Treatment

    Science.gov (United States)

    Beranuy, Marta; Carbonell, Xavier; Griffiths, Mark D.

    2013-01-01

    Online gaming addiction is a relatively under-researched area and there have been few studies examining online gamers in treatment. This paper reports the findings from a qualitative interview study of nine players undergoing treatment for their addictive playing of Massively Multiplayer Online Role Playing Games (MMORPGs). A face-to-face…

  20. Perspectives of African Americans on Lung Cancer: A Qualitative Analysis

    OpenAIRE

    Lathan, Christopher S.; Waldman, Laura Tesler; Browning, Emily; Gagne, Joshua; Emmons, Karen

    2015-01-01

    This qualitative study suggests that African American smokers are aware of the relationship between smoking and lung cancer and are interested in smoking-cessation treatment. These data also indicate that lung cancer disparities are unlikely to be associated with differential willingness to receive care but that African Americans may perceive financial and insurance barriers to lung cancer treatment.

  1. Qualitative analysis of volatile organic compounds on biochar

    Science.gov (United States)

    Qualitative identification of sorbed volatile organic compounds (VOCs) on biochar was conducted by headspace thermal desorption coupled to capillary gas chromatographic-mass spectrometry. VOCs may have a mechanistic role influencing plant and microbial responses to biochar amendments, since VOCs ca...

  2. A Qualitative Analysis Framework Using Natural Language Processing and Graph Theory

    Science.gov (United States)

    Tierney, Patrick J.

    2012-01-01

    This paper introduces a method of extending natural language-based processing of qualitative data analysis with the use of a very quantitative tool--graph theory. It is not an attempt to convert qualitative research to a positivist approach with a mathematical black box, nor is it a "graphical solution". Rather, it is a method to help qualitative…

  3. A Grounded Theory of Inductive Qualitative Research Education: Results of a Meta-Data-Analysis

    Science.gov (United States)

    Cooper, Robin; Chenail, Ronald J.; Fleming, Stephanie

    2012-01-01

    This paper reports on the first stage of a meta-study conducted by the authors on primary research published during the last thirty years that focused on discovering the experiences of students learning qualitative research. The authors carried out a meta-analysis of the findings of students' experiences learning qualitative research included in…

  4. A Simple Card Trick: Teaching Qualitative Data Analysis Using a Deck of Playing Cards

    Science.gov (United States)

    Waite, Duncan

    2011-01-01

    Yet today, despite recent welcome additions, relatively little is written about teaching qualitative research. Why is that? This article reports out a relatively simple, yet appealing, pedagogical move, a lesson the author uses to teach qualitative data analysis. Data sorting and categorization, the use of tacit and explicit theory in data…

  5. Qualitative Research in Career Development: Content Analysis from 1990 to 2009

    Science.gov (United States)

    Stead, Graham B.; Perry, Justin C.; Munka, Linda M.; Bonnett, Heather R.; Shiban, Abbey P.; Care, Esther

    2012-01-01

    A content analysis of 11 journals that published career, vocational, and work-related articles from 1990 to 2009 was conducted. Of 3,279 articles analyzed, 55.9% used quantitative methods and 35.5% were theoretical/conceptual articles. Only 6.3% used qualitative research methods. Among the qualitative empirical studies, standards of academic rigor…

  6. The issue network of zero carbon built environments: a quantitative and qualitative analysis

    OpenAIRE

    Rydin, Y. J.

    2013-01-01

    Environmental politics research frequently centres on the analysis of networks but predominantly from a qualitative perspective. The case is made for combining quantitative analysis of policy networks alongside qualitative research. This enables the structure and form of the network to be considered and focused attention then paid to how actors operationalise the network and give agency to the position of central nodes. This is explored through an empirical analysis of the issue network surro...

  7. Quantitative and qualitative HPLC analysis of thermogenic weight loss products.

    Science.gov (United States)

    Schaneberg, B T; Khan, I A

    2004-11-01

    An HPLC qualitative and quantitative method of seven analytes (caffeine, ephedrine, forskolin, icariin, pseudoephedrine, synephrine, and yohimbine) in thermogenic weight loss preparations available on the market is described in this paper. After 45 min the seven analytes were separated and detected in the acetonitrile: water (80:20) extract. The method uses a Waters XTerra RP18 (5 microm particle size) column as the stationary phase, a gradient mobile phase of water (5.0 mM SDS) and acetonitrile, and a UV detection of 210 nm. The correlation coefficients for the calibration curves and the recovery rates ranged from 0.994 to 0.999 and from 97.45% to 101.05%, respectively. The qualitative and quantitative results are discussed. PMID:15587578

  8. [Dentistry in Wikipedia: A quantitative and qualitative analysis].

    Science.gov (United States)

    Lorenz, Annette; Türp, Jens C

    2010-01-01

    The aim of this study was to assess the scientific quality of the 265 dental articles that were present in January 2008 in the German-language version of Wikipedia. For this purpose, the Wikipedia entries were examined for their correctness by comparing them with the current dental literature. Every article was classified as having "textbook quality", "partial textbook quality" or "missing textbook quality". Of the 261 usable articles, 28% were qualitatively comparable to a textbook, while 56% had partial textbook quality. About 16% of the articles fell into the third group. Almost half of the Wikipedia entries fulfilled the qualitative standards, whereas the remaining articles were characterized by omissions. Hence, individuals interested in dental topics should not exclusively rely on Wikipedia. For a cursory overview, however, a search in Wikipedia appears to be in order. PMID:21261123

  9. Social impacts of casino gaming in Macao: A qualitative analysis

    OpenAIRE

    King Penny Wan, Yim; Li, Xin Crystal; Kong, Weng Hang

    2011-01-01

    The casino gaming sector has witnessed rapid growth worldwide in the past three decades. As the casino industry has been developing rapidly, it is important to understand the pros and cons of casino development and seek ways to minimize the potential negative impacts. This study investigates the social consequences of casino gaming in Macao since the liberalization of casino licensing in 2002, using a qualitative research method. The results reveal that the expansion of casino gaming did brin...

  10. Qualitative Analysis of Coating Flows on a Rotating Horizontal Cylinder

    Directory of Open Access Journals (Sweden)

    Marina Chugunova

    2012-01-01

    Full Text Available We consider a nonlinear 4th-order degenerate parabolic partial differential equation that arises in modelling the dynamics of an incompressible thin liquid film on the outer surface of a rotating horizontal cylinder in the presence of gravity. The parameters involved determine a rich variety of qualitatively different flows. We obtain sufficient conditions for finite speed of support propagation and for waiting time phenomena by application of a new extension of Stampacchia's lemma for a system of functional equations.

  11. Qualitative and Quantitative Analysis of Lignan Constituents in Caulis Trachelospermi by HPLC-QTOF-MS and HPLC-UV

    OpenAIRE

    Xiao-Ting Liu; Xu-Guang Wang; Rui Xu; Fan-Hua Meng; Neng-Jiang Yu; Yi-Min Zhao

    2015-01-01

    A high-performance liquid chromatography coupled with quadrupole tandem time-of-flight mass (HPLC-QTOF-MS) and ultraviolet spectrometry (HPLC-UV) was established for simultaneous qualitative and quantitative analysis of the major chemical constituents in Caulis Trachelospermi, respectively. The analysis was performed on an Agilent Zorbax Eclipse Plus C18 column (4.6 mm × 150 mm, 5 μm) using a binary gradient system of water and methanol, with ultraviolet absorption at 230 nm. Based on high-re...

  12. Laser Induced Breakdown Spectroscopy of Prickly Pear's Spines and Glochids: A qualitative analysis

    International Nuclear Information System (INIS)

    A qualitative LIBS analysis of Prickly Pear is presented. The spectra for Q:Switch regime from cladode and spine are similar, while shows an intense electronic noise due the high absorption in spines for free-running regime

  13. Qualitative and quantitative CT analysis of acute pulmonary failure

    International Nuclear Information System (INIS)

    Since its first application in patients with acute lung injury 25 years ago, computed tomography (CT) has significantly influenced the understanding of the pathophysiology, diagnosis and management of acute lung injury and has become an important diagnostic modality for these patients. The aim of this article is to review important disease-specific aspects of CT acquisition and qualitative and quantitative analyses of CT data. Morphological changes seen on CT and associated functional alterations are discussed. Methods used for the quantification of lung aeration are described and their limitations outlined. (orig.)

  14. LABAQM - A SYSTEM FOR QUALITATIVE MODELLING AND ANALYSIS OF ANIMAL BEHAVIOUR

    OpenAIRE

    Matetić, Maja; Ribarić, Slobodan; Ipšić, Ivo

    2002-01-01

    Tracking of a laboratory animal and its behaviour interpretation based on frame sequence analysis have been traditionally quantitative and typically generates large amounts of temporally evolving data. In our work we are dealing with higher-level approaches such as conceptual clustering and qualitative modelling in order to represent data obtained by tracking. We present the LABAQM system developed for the analysis of laboratory animal behaviours. It is based on qualitative modelling of anima...

  15. An Example of Performing a Text Analysis in a Qualitative Research

    OpenAIRE

    Vasja Roblek

    2009-01-01

    The article presents an example of a text analysis and interpretation based on a qualitative research. In the first part we focus on the theoretical definition of analytical tools and characteristics of the text analysis and interpretation within the frame of qualitative research. We continue with presenting an option of analysing and interpreting acquired data by using the analytical tool thematic network. The presented option is based on the results we obtained by half-structured interviews...

  16. Qualitative aspects in the analysis of pesticide residues in fruits and vegetables using fast, low-pressure gas chromatography - time-of-flight mass spectrometry

    Science.gov (United States)

    Assessment of qualitative results in analytical methods is needed to estimate selectivity and devise criteria for chemical identification, particularly for mass spectrometric analysis. Low-pressure gas chromatography - mass spectrometry (LP-GC/MS) has been demonstrated to increase the speed of anal...

  17. Beliefs about fast food in Australia: a qualitative analysis.

    Science.gov (United States)

    Dunn, Kirsten I; Mohr, Philip B; Wilson, Carlene J; Wittert, Gary A

    2008-09-01

    The consumption of energy-dense fast foods has been implicated as a causal factor in the development of obesity. The development of strategies to modify food choice behaviour requires an understanding of the behaviour and the driving factors. This study examined the rationale behind decisions to either choose or avoid fast foods. Drawing partly on the Theory of Planned Behaviour (Ajzen, (1988)), a qualitative design was employed to examine the beliefs and perceptions associated with fast-food consumption within an Australian sample. Findings provided an indication that positive affective reactions to fast food, convenience, and self-serving cognitions may override cognitive analyses of the longer-term health risks associated with frequent fast-food consumption. PMID:18430490

  18. Perceptions of waste and recycling. A qualitative analysis

    DEFF Research Database (Denmark)

    Thøgersen, John; Ølander, Carl Folke

    This paper reports the results of a qualitative study with four main objectives: A To identify activities and inactivities in private households which influence the volume, composition, and further treatment of solid household waste, B to i dentify factors that influence consumers%27 perceptions of...... the possibilities for avoiding or reducing waste, and in particular to identify the perceived barriers for waste reduction, C to identify which types of social or organised consumer activities if any seem to be most popular with regard to waste avoidance, and D to investigate whether or not variations...... in these activities and perceptions are related to variations in objective life conditions. The data are collected by means of ten focus group interviews. Two focus groups were carried out with experts in the field and eight with ordinary consumers. In the design of the study, the following...

  19. Impact of self-reported multiple chemical sensitivity on everyday life: a qualitative study

    DEFF Research Database (Denmark)

    Skovbjerg, Sine; Brorson, Stig; Rasmussen, Alice;

    2009-01-01

    BACKGROUND: Multiple chemical sensitivity (MCS) is a descriptive term covering symptoms attributed to exposure to common airborne chemicals. There are no internationally accepted criteria, but it has been suggested that MCS is a chronic and disabling condition. However, details of the impact of M...

  20. A Qualitative Comparison of Porcine and Rodent Thyroperoxidase -Effects of Environmental Chemicals.

    Science.gov (United States)

    A wide variety of environmental chemicals alter the function of the thyroid system in many animal species. Thyroperoxidase (TPO), the enzyme that synthesizes thyroid hormone, is one of the known biochemical targets for thyroid disrupting chemicals (TDC). The majority of the in vi...

  1. Qualitative Data Analysis: A Compendium of Techniques and a Framework for Selection for School Psychology Research and Beyond

    Science.gov (United States)

    Leech, Nancy L.; Onwuegbuzie, Anthony J.

    2008-01-01

    Qualitative researchers in school psychology have a multitude of analyses available for data. The purpose of this article is to present several of the most common methods for analyzing qualitative data. Specifically, the authors describe the following 18 qualitative analysis techniques: method of constant comparison analysis, keywords-in-context,…

  2. Comparing Results from Constant Comparative and Computer Software Methods: A Reflection about Qualitative Data Analysis

    Science.gov (United States)

    Putten, Jim Vander; Nolen, Amanda L.

    2010-01-01

    This study compared qualitative research results obtained by manual constant comparative analysis with results obtained by computer software analysis of the same data. An investigated about issues of trustworthiness and accuracy ensued. Results indicated that the inductive constant comparative data analysis generated 51 codes and two coding levels…

  3. Use of compact spectrometer for plasma emission qualitative analysis

    International Nuclear Information System (INIS)

    Usage of compact optical spectrometer for plasma emission analysis is considered. Capabilities of specially developed personal computer software to identify specific emission spectral lines are shown. Difficulties of analysis of complex plasma compositions emission spectrums are described

  4. Chemical analysis of water in hydrogeology

    International Nuclear Information System (INIS)

    The aim of the monograph is to give complete information on the chemical analysis of water hydrogeology not only for the students program of Geology study (Bachelor degree study), Engineering Geology and Hydrogeology (Master's degree study) and Engineering Geology (doctoral level study), but also for students from other colleges and universities schools in Slovakia, as well as in the Czech Republic, dealing with the chemical composition of water and its quality, from different perspectives. The benefit would be for professionals with hydrogeological, water and environmental practices, who can find there all the necessary information about proper water sampling, the units used in the chemical analysis of water, expressing the proper chemical composition of water in its various parameters through classification of chemical composition of the water up to the basic features of physical chemistry at thermodynamic calculations and hydrogeochemical modelling.

  5. “I always feared the bell”: a qualitative, textual analysis of www.bullying.org

    OpenAIRE

    Cartwright, Barry Edward

    2010-01-01

    This cyber-research study involves a qualitative, textual analysis of the first 475 messages (as of December 31st, 2002) and the last 475 messages (as of August 30th, 2006) posted on the Canadian-based anti-bullying Web site, www.bullying.org. The 950 messages—from bullies, bully-victims, victims, bystanders, parents, school personnel, and many others—were categorized and coded in NVivo, a computer software package used in qualitative research. Both qualitative and quantitative methods were...

  6. The Design of Everyday Hate: A Qualitative and Quantitative Analysis

    Directory of Open Access Journals (Sweden)

    Katherine Aumer-Ryan

    2007-12-01

    Full Text Available Throughout history artists, poets, and writers have been interested in the nature of hate. Scientists from a variety of disciplines have also attempted to unravel its mysteries. Yet in spite of abundant theorizing and research, most modern scholars still complain that little is known about this complex emotion. In this study, a new approach has been taken. Following Heider’s (1958 observation that scientists can often learn a great deal by exploring people’s “common-sense” or “naïve psychologies,” students at the University of Texas and participants from a number of Internet sites were interviewed regarding their perceptions of the nature of emotion. Using grounded theory and employing mixed-method analyses (qualitative and quantitative, four questions were explored: (1 What do people mean by hate? (2 Whom do they hate? (3 Why do people hate the people they do? (4 How do people attempt to deal with such feelings? From participants’ answers, a theory concerning everyday hate was generated.

  7. Why study online in upper secondary school? Qualitative analysis of online learning experiences

    OpenAIRE

    Tiina Kokko; Henri Pesonen; Elina Kontu; Raija Pirttimaa

    2015-01-01

    In Finland, online learning has become more common in recent years. In this study, we examined why adult students chose to study online for upper secondary school. The research also focused on the support needed for learning from a special education perspective. Both qualitative and quantitative data were collected using an electronic questionnaire. In total, 58 students responded. Data were analyzed qualitatively using the content analysis technique. The findings indicate that the main ...

  8. Nonlinear Model and Qualitative Analysis for Coupled Axial/Torsional Vibrations of Drill String

    OpenAIRE

    Fushen Ren; Baojin Wang; Suli Chen; Zhigang Yao; Baojun Bai

    2016-01-01

    A nonlinear dynamics model and qualitative analysis are presented to study the key effective factors for coupled axial/torsional vibrations of a drill string, which is described as a simplified, equivalent, flexible shell under axial rotation. Here, after dimensionless processing, the mathematical models are obtained accounting for the coupling of axial and torsional vibrations using the nonlinear dynamics qualitative method, in which excitation loads and boundary conditions of the drill stri...

  9. Rethinking policy-related research: charting a path using qualitative comparative analysis and complexity theory

    OpenAIRE

    Blackman, Tim.

    2013-01-01

    This article argues that conventional quantitative and qualitative research methods have largely failed to provide policy practitioners with the knowledge they need for decision making. These methods often have difficulty handling real world complexity, especially complex causality. This is when the mechanism of change is a combination of conditions that occur in a system such as an organisation or locality. A better approach is to use Qualitative Comparative Analysis (QCA), a hybrid qualitat...

  10. High performance thin layer chromatography (HPTLC) and high performance liquid chromatography (HPLC) for the qualitative and quantitative analysis of Calendula officinalis-advantages and limitations.

    Science.gov (United States)

    Loescher, Christine M; Morton, David W; Razic, Slavica; Agatonovic-Kustrin, Snezana

    2014-09-01

    Chromatography techniques such as HPTLC and HPLC are commonly used to produce a chemical fingerprint of a plant to allow identification and quantify the main constituents within the plant. The aims of this study were to compare HPTLC and HPLC, for qualitative and quantitative analysis of the major constituents of Calendula officinalis and to investigate the effect of different extraction techniques on the C. officinalis extract composition from different parts of the plant. The results found HPTLC to be effective for qualitative analysis, however, HPLC was found to be more accurate for quantitative analysis. A combination of the two methods may be useful in a quality control setting as it would allow rapid qualitative analysis of herbal material while maintaining accurate quantification of extract composition. PMID:24880991

  11. Methodological Aspects of Qualitative-Quantitative Analysis of Decision-Making Processes

    Directory of Open Access Journals (Sweden)

    Gawlik Remigiusz

    2016-06-01

    Full Text Available The paper aims at recognizing the possibilities and perspectives of application of qualitative-quantitative research methodology in the field of economics, with a special focus on production engineering management processes. The main goal of the research is to define the methods that would extend the research apparatus of economists and managers by tools that allow the inclusion of qualitative determinants into quantitative analysis. Such approach is justified by qualitative character of many determinants of economic occurrences. At the same time quantitative approach seems to be predominant in production engineering management, although methods of transposition of qualitative decision criteria can be found in literature. Nevertheless, international economics and management could profit from a mixed methodology, incorporating both types of determinants into joint decision-making models. The research methodology consists of literature review and own analysis of applicability of mixed qualitative-quantitative methods for managerial decision-making. The expected outcome of the research is to find which methods should be applied to include qualitative-quantitative analysis into multicriteria decision-making models in the fields of economics, with a special regard to production engineering management.

  12. 40 CFR 761.253 - Chemical analysis.

    Science.gov (United States)

    2010-07-01

    ... 40 Protection of Environment 30 2010-07-01 2010-07-01 false Chemical analysis. 761.253 Section 761.253 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) TOXIC SUBSTANCES CONTROL ACT... analysis. (a) Extract PCBs from the standard wipe sample collection medium and clean-up the extracted...

  13. Qualitative phase space reconstruction analysis of supply-chain inventor time series

    Directory of Open Access Journals (Sweden)

    Jinliang Wu

    2010-10-01

    Full Text Available The economy systems are usually too complex to be analysed, but some advanced methods have been developed in order to do so, such as system dynamics modelling, multi-agent modelling, complex adaptive system modelling and qualitative modelling. In this paper, we considered a supply-chain (SC system including several kinds of products. Using historic suppliers’ demand data, we firstly applied the phase space analysis method and then used qualitative analysis to improve the complex system’s performance. Quantitative methods can forecast the quantitative SC demands, but they cannot indicate the qualitative aspects of SC, so when we apply quantitative methods to a SC system we get only numerous data of demand. By contrast, qualitative methods can show the qualitative change and trend of the SC demand. We therefore used qualitative methods to improve the quantitative forecasting results. Comparing the quantitative only method and the combined method used in this paper, we found that the combined method is far more accurate. Not only is the inventory cost lower, but the forecasting accuracy is also better.

  14. Handling Imprecision in Qualitative Data Warehouse: Urban Building Sites Annoyance Analysis Use Case

    Science.gov (United States)

    Amanzougarene, F.; Chachoua, M.; Zeitouni, K.

    2013-05-01

    Data warehouse means a decision support database allowing integration, organization, historisation, and management of data from heterogeneous sources, with the aim of exploiting them for decision-making. Data warehouses are essentially based on multidimensional model. This model organizes data into facts (subjects of analysis) and dimensions (axes of analysis). In classical data warehouses, facts are composed of numerical measures and dimensions which characterize it. Dimensions are organized into hierarchical levels of detail. Based on the navigation and aggregation mechanisms offered by OLAP (On-Line Analytical Processing) tools, facts can be analyzed according to the desired level of detail. In real world applications, facts are not always numerical, and can be of qualitative nature. In addition, sometimes a human expert or learned model such as a decision tree provides a qualitative evaluation of phenomenon based on its different parameters i.e. dimensions. Conventional data warehouses are thus not adapted to qualitative reasoning and have not the ability to deal with qualitative data. In previous work, we have proposed an original approach of qualitative data warehouse modeling, which permits integrating qualitative measures. Based on computing with words methodology, we have extended classical multidimensional data model to allow the aggregation and analysis of qualitative data in OLAP environment. We have implemented this model in a Spatial Decision Support System to help managers of public spaces to reduce annoyances and improve the quality of life of the citizens. In this paper, we will focus our study on the representation and management of imprecision in annoyance analysis process. The main objective of this process consists in determining the least harmful scenario of urban building sites, particularly in dense urban environments.

  15. RISK DISCLOSURE ANALYSIS IN THE CORPORATE GOVERNANCE ANNUAL REPORT USING FUZZY-SET QUALITATIVE COMPARATIVE ANALYSIS

    Directory of Open Access Journals (Sweden)

    Pedro Carmona

    2016-05-01

    Full Text Available This paper explores the necessary and sufficient conditions of good Corporate Governance practices for high risk disclosure by firms in their Corporate Governance Annual Report. Additionally, we explore whether those recipes have changed during the financial crisis. With a sample of 271 Spanish listed companies, we applied fuzzy-set qualitative comparative analysis to a database of financial and non-financial data. We report that Board of Directors independence, size, level of activity and gender diversity, CEO duality, Audit Committee independence, being audited by the Big Four auditing firms and the presence of institutional investors are associated with high risk disclosure. The conditions included in almost every combination are the presence of institutional investors and being audited by the Big Four. We found similar combinations for 2006 and 2012, while the analysis for 2009 showed the lowest number of causal configurations.

  16. Qualitative analysis of the Clock Drawing Test by educational level and cognitive profile

    Directory of Open Access Journals (Sweden)

    Aline Teixeira Fabricio

    2014-04-01

    Full Text Available The use of a qualitative scale for the Clock Drawing Test (CDT may add information about the pattern of errors committed. Objective: To translate and adapt the Modified Qualitative Error Analysis of Rouleau into Brazilian Portuguese and to examine the pattern of errors according to educational level and cognitive profile. Method: 180 adults (47-82 years completed the CDT. Participants were stratified into age and educational levels and separated between those with and without changes in cognitive screening tests (Mini-Mental State Examination, Verbal Fluency. Results: No significant differences were found in CDT scores among age groups. Among participants without cognitive impairment, those with lower education often presented graphic difficulties, conceptual deficits and spatial deficits. Participants with cognitive deficits, demonstrated more frequently conceptual and spatial errors. Conclusion: The qualitative analysis of the CDT may contribute to the identification of cognitive changes. Education level has to be taken into consideration during the analysis.

  17. Concept analysis of competency in nursing: Qualitative research

    Directory of Open Access Journals (Sweden)

    Masumeh Bagheri Nesami

    2008-01-01

    Full Text Available (Received 23 Sep ,2008; Accepted 3 Dec ,2008 AbstractBackground and Purpose: Competency is a complicated and an ambiguous concept. It is also a challenging subject in the health care arena, which is significant in different aspects of nursing, such as education, clinic and management. There are ambiguities about it, thus, in this article, researchers conducted analysis of this concept. Materials and methods: This research is a concept analysis by the hybrid method. This model has three steps. In literature review stage, 475 related articles exist in databases up to September 2007 were analyzed and evaluated. As to the importance of educational system in the training of nursing courses, 5 educators were interviewed in the field work stage. After listening to tapes, results were Tran scripted and content analysis was done. In the last stage, holistic analysis was carried out.Results: Best definition and properties of competency was selected based on literature reviews. In the field work stage, categories and attributes, same as literature reviews stage, were emerged with interviewing of nursing educators, in addition to holistic view properties, in relation to attitude domain and creativity of management domain. In the last stage, a hybrid model was delivered.Conclusion: In the Iranian field of nursing, educational planning, implementing competency instrument, nurses and students evaluation can be performed according to this study criterion. J Mazand Univ Med Sci 2008; 18(67:35-42 (Persian

  18. A Qualitative Analysis of the Coping Strategies of Substitute Teachers

    Science.gov (United States)

    Vorell, Matthew S.

    2011-01-01

    This study distinguishes whether substitute teachers enact coping strategies that mitigate the source of work-related stress (problem-centered) or coping strategies that enable them to adapt to stress created by work-related stressors (avoidance-centered). The author gathered data for this analysis by conducting 37 in-depth interviews with…

  19. QUALITATIVE COMPARATIVE ANALYSIS OF NOOSPHERE DEVELOPMENT AND KNOWLEDGE ECONOMY

    OpenAIRE

    Yermolenko V. V.; Lanskaya D. V.

    2014-01-01

    The article, based on the total problems of formation and development of the knowledge economy, we highlighted the environmental aspect and the comparative analysis of the fundamental ideas of the knowledge economy and the noosphere concept development in terms of their complementarity

  20. Chemical analysis of high purity graphite

    International Nuclear Information System (INIS)

    The Sub-Committee on Chemical Analysis of Graphite was organized in April 1989, under the Committee on Chemical Analysis of Nuclear Fuels and Reactor Materials, JAERI. The Sub-Committee carried out collaborative analyses among eleven participating laboratories for the certification of the Certified Reference Materials (CRMs), JAERI-G5 and G6, after developing and evaluating analytical methods during the period of September 1989 to March 1992. The certified values were given for ash, boron and silicon in the CRM based on the collaborative analysis. The values for ten elements (Al, Ca, Cr, Fe, Mg, Mo, Ni, Sr, Ti, V) were not certified, but given for information. Preparation, homogeneity testing and chemical analyses for certification of reference materials were described in this paper. (author) 52 refs

  1. Spectroscopic chemical analysis methods and apparatus

    Science.gov (United States)

    Hug, William F. (Inventor); Reid, Ray D. (Inventor); Bhartia, Rohit (Inventor)

    2013-01-01

    Spectroscopic chemical analysis methods and apparatus are disclosed which employ deep ultraviolet (e.g. in the 200 nm to 300 nm spectral range) electron beam pumped wide bandgap semiconductor lasers, incoherent wide bandgap semiconductor light emitting devices, and hollow cathode metal ion lasers to perform non-contact, non-invasive detection of unknown chemical analytes. These deep ultraviolet sources enable dramatic size, weight and power consumption reductions of chemical analysis instruments. Chemical analysis instruments employed in some embodiments include capillary and gel plane electrophoresis, capillary electrochromatography, high performance liquid chromatography, flow cytometry, flow cells for liquids and aerosols, and surface detection instruments. In some embodiments, Raman spectroscopic detection methods and apparatus use ultra-narrow-band angle tuning filters, acousto-optic tuning filters, and temperature tuned filters to enable ultra-miniature analyzers for chemical identification. In some embodiments Raman analysis is conducted along with photoluminescence spectroscopy (i.e. fluorescence and/or phosphorescence spectroscopy) to provide high levels of sensitivity and specificity in the same instrument.

  2. Qualitative diagnosis for transients analysis on nuclear reactors

    International Nuclear Information System (INIS)

    One of the major aims of an intelligent monitoring system, is the supervision task which assist the operator in understanding what occurs on a process. Failures hypotheses must be located and the inferring process must be explained. This paper demonstrate a second generation expert system (SEXTANT) decided to the transients analysis on PWR nuclear reactors. This system detects failures by simulating the process with a numerical model. A diagnosis module uses an even graph built from a causal graph model of the plant to generate hypotheses, and a numerical model to validate these hypotheses. Hypotheses are stored into scenarios which are concurrent possible interpretations of the process evolution. The approach is illustrated by an application for the analysis of the house load operation on a pressurized water reactor. (authors). 9 refs., 10 figs

  3. Qualitative analysis of controlled release ciprofloxacin/carbopol 934 mucoadhesive suspension

    Directory of Open Access Journals (Sweden)

    Subhashree Sahoo

    2011-01-01

    Full Text Available Mucoadhesive polymeric (carbopol 934 suspension of ciprofloxacin was prepared by ultrasonication and optimized with the aim of developing an oral controlled release gastro-retentive dosage form. The qualitative analysis of the formulation was performed by fourier transform infrared spectroscopy (FTIR, Raman spectroscopy, X-ray powder diffraction (XRD, and scanning electron microscopy (SEM analyses. FTIR (400 cm-1 to 4000 cm-1 region and Raman (140 to 2400 cm-1 region Spectroscopic studies were carried out and the spectra were used for interpretation. XRD data of pure drug, polymer and the formulation were obtained using a powder diffractometer scanned from a Bragg′s angle (2q of 10° to 70°. The dispersion of the particle was observed using SEM techniques. The particle size distribution and aspect ratio of particles in the polymeric suspension were obtained from SEM image analysis. The results from FTIR and Raman spectroscopic analyses suggested that, in formulation, the carboxylic groups of ciprofloxacin and hydroxyl groups of C934 undergo a chemical interaction leading to esterification and hydrogen bonding. The XRD data suggested that the retention of crystalline nature of ciprofloxacin in the formulation would lead to increase in stability and drug loading; decrease in solubility; and delay in release of the drug from polymeric suspension with better bioavailability and penetration capacity. The SEM image analysis indicated that, in the formulation maximum particles were having aspect ratio from 2 to 4 and standard deviation was very less which provided supporting evidences for homogeneous, uniformly dispersed, stable controlled release ciprofloxacin suspension which would be pharmaceutically acceptable.

  4. Treatment results in qualitative designs. Application of Descriptive Analysis

    Directory of Open Access Journals (Sweden)

    Héctor Blas Lahitte

    2014-04-01

    It discusses two examples from the Ethology and Psychology, applying methodological strategy Descriptive Analysis. They show that the codification that allows this method takes into account on the one hand, the knowledge base and information relating to a particular disciplinary domain; and on the other hand, it allows to make evident the inferences followed in the reasoning and the rules of interpretation used in reaching new knowledge.

  5. Quantitative and qualitative analysis of hydrosoluble organic matter in bitumen leachates

    OpenAIRE

    Walczak, Isabelle; Libert, Marie-Françoise; Camaro, Sylvie; Blanchard, Jean-Marie

    2001-01-01

    International audience Bitumen is currently used as an embedding matrix for low and intermediate level radioactive waste disposal in deep sediments. High impermeability and a great resistance to most chemicals are the two main properties sought. Indeed, the generation of water-soluble organic complexing agents could affect the integrity of the wasteform due to an increase of radionuclide solubility. Therefore, the aim of this study is the quantitative and qualitative characterisation of so...

  6. Service activities of chemical analysis division

    International Nuclear Information System (INIS)

    Progress of the Division during the year of 1988 was described on the service activities for various R and D projects carrying out in the Institute, for the fuel fabrication and conversion plant, and for the post-irradiation examination facility. Relevant analytical methodologies developed for the chemical analysis of an irradiated fuel, safeguards chemical analysis, and pool water monitoring were included such as chromatographic separation of lanthanides, polarographic determination of dissolved oxygen in water, and automation on potentiometric titration of uranium. Some of the laboratory manuals revised were also included in this progress report. (Author)

  7. Emoting infertility online: A qualitative analysis of men's forum posts.

    Science.gov (United States)

    Hanna, Esmée; Gough, Brendan

    2016-07-01

    Relatively little research on infertility focuses exclusively or significantly on men's experiences, particularly in relation to emotional aspects. Evidence that does exist around male infertility suggests that it is a distressing experience for men, due to stigma, threats to masculinity and the perceived need to suppress emotions, and that men and women experience infertility differently. Using thematic analysis, this article examines the online emoting of men in relation to infertility via forum posts from a men-only infertility discussion board. It was noted that men 'talked' to each other about the emotional burdens of infertility, personal coping strategies and relationships with others. Three major themes were identified following in-depth analysis: 'the emotional rollercoaster', 'the tyranny of infertility' and 'infertility paranoia'. This article then offers insights into how men experience infertility emotionally, negotiate the emotional challenges involved (especially pertaining to diagnosis, treatment outcomes and their intimate relationships) and how they share (and find value in doing so) with other men the lived experience of infertility. PMID:27246813

  8. Structural and Qualitative Analysis of the Romanian Banking System

    Directory of Open Access Journals (Sweden)

    Anisoara Niculina APETRI

    2010-12-01

    Full Text Available The banking sector, the predominant component of the Romanian financial system, had a relatively stable structure in the period 2005-2009 and has experienced significant consolidation, particularly in the years 2005-2006, this being sustained mainly by the restructuring and privatization process, but also by Romania's EU accession perspective and the competitive environment in this area. Given the new status of Romania as EU member country, the competition in the banking system has increased significantly, leading to both structural changes, but also to changes in levels of analysis indicators of banking structure and performance. Following this analysis, it appears that, recently, our country's banking system saw a dynamic and unprecedented diversification resulting from the economic development of the society and adaptation to EU requirements, and we can say that in Romania there is, now, a modern and competitive banking system, which provides circulation of the domestic economy and provides banking products and services in accordance with trends in the European banking sector.

  9. Entropy generation reduction through chemical pinch analysis

    International Nuclear Information System (INIS)

    The pinch analysis (PA) concept emerged, late '80s, as one of the methods to address the energy management in the new era of sustainable development. It was derived from combined first and second law analysis, as a technique ensuring a better thermal integration, aiming the minimization of entropy production or, equivalently, exergy destruction by heat exchanger networks (HEN). Although its ascendance from the second law analysis is questionable, the PA reveals as a widespread tool, nowadays, helping in energy savings mostly through a more rational use of utilities. Unfortunately, as principal downside, one should be aware that the global minimum entropy production is seldom attained, since the PA does not tackle the whole plant letting aside the chemical reactors or separation trains. The chemical reactor network (CRN) is responsible for large amounts of entropy generation (exergy losses), mainly due to the combined composition and temperature change. The chemical pinch analysis (CPA) concept focuses on, simultaneously, the entropy generation reduction of both CRN and HEN, while keeping the state and working parameters of the plant in the range of industrial interest. The fundamental idea of CPA is to include the CRN (through the chemical reaction heat developed in reactors) into the HEN and to submit this extended system to the PA. This is accomplished by replacing the chemical reactor with a virtual heat exchanger system producing the same amount of entropy. For an endothermic non-adiabatic chemical reactor, the (stepwise infinitesimal) supply heat δq flows from a source (an external/internal heater) to the stream undergoing the chemical transformation through the reactor, which in turn releases the heat of reaction ΔHR to a virtual cold stream flowing through a virtual cooler. For an exothermic non-adiabatic chemical reactor, the replacement is likewise, but the heat flows oppositely. Thus, in the practice of designing or retrofitting a flowsheet, in order to

  10. [Analysis of the stability and adaptability of near infrared spectra qualitative analysis model].

    Science.gov (United States)

    Cao, Wu; Li, Wei-jun; Wang, Ping; Zhang, Li-ping

    2014-06-01

    The stability and adaptability of model of near infrared spectra qualitative analysis were studied. Method of separate modeling can significantly improve the stability and adaptability of model; but its ability of improving adaptability of model is limited. Method of joint modeling can not only improve the adaptability of the model, but also the stability of model, at the same time, compared to separate modeling, the method can shorten the modeling time, reduce the modeling workload; extend the term of validity of model, and improve the modeling efficiency. The experiment of model adaptability shows that, the correct recognition rate of separate modeling method is relatively low, which can not meet the requirements of application, and joint modeling method can reach the correct recognition rate of 90%, and significantly enhances the recognition effect. The experiment of model stability shows that, the identification results of model by joint modeling are better than the model by separate modeling, and has good application value. PMID:25358155

  11. Quantitative and Qualitative Analysis of Nutrition and Food Safety Information in School Science Textbooks of India

    Science.gov (United States)

    Subba Rao, G. M.; Vijayapushapm, T.; Venkaiah, K.; Pavarala, V.

    2012-01-01

    Objective: To assess quantity and quality of nutrition and food safety information in science textbooks prescribed by the Central Board of Secondary Education (CBSE), India for grades I through X. Design: Content analysis. Methods: A coding scheme was developed for quantitative and qualitative analyses. Two investigators independently coded the…

  12. On Conceptual Analysis as the Primary Qualitative Approach to Statistics Education Research in Psychology

    Science.gov (United States)

    Petocz, Agnes; Newbery, Glenn

    2010-01-01

    Statistics education in psychology often falls disappointingly short of its goals. The increasing use of qualitative approaches in statistics education research has extended and enriched our understanding of statistical cognition processes, and thus facilitated improvements in statistical education and practices. Yet conceptual analysis, a…

  13. Leipzig Corpus Miner - A Text Mining Infrastructure for Qualitative Data Analysis

    OpenAIRE

    Niekler, Andreas; Wiedemann, Gregor; Heyer, Gerhard

    2014-01-01

    International audience This paper presents the \\Leipzig Corpus Miner"|a technical infrastructure for supporting qualitative and quantitative content analysis. The infrastructure aims at the integration of \\close reading" procedures on individual documents with procedures of \\distant reading", e.g. lexical characteristics of large document collections. Therefore information retrieval systems, lexicometric statistics and machine learning procedures are combined in a coherent framework which ...

  14. Qualitative Research in Distance Education: An Analysis of Journal Literature 2005-2012

    Science.gov (United States)

    Hauser, Laura

    2013-01-01

    This review study examines the current research literature in distance education for the years 2005 to 2012. The author found 382 research articles published during that time in four prominent peer-reviewed research journals. The articles were classified and coded as quantitative, qualitative, or mixed methods. Further analysis found another…

  15. A Content Analysis of LGBTQ Qualitative Research in Counseling: A Ten-Year Review

    Science.gov (United States)

    Singh, Anneliese A.; Shelton, Kimber

    2011-01-01

    This content analysis examines the qualitative methodology used in counseling research with lesbian, gay, bisexual, transgender, and queer (LGBTQ) issues published over the last 10 years (1998-2008) in 4 counseling and counseling psychology journals ("Journal of Counseling & Development," "Journal of Counseling Psychology," "Journal of LGBT Issues…

  16. XbD Video 3, The SEEing process of qualitative data analysis

    DEFF Research Database (Denmark)

    2013-01-01

    This is the third video in the Experience-based Designing series. It presents a live classroom demonstration of a nine step qualitative data analysis process called SEEing: The process is useful for uncovering or discovering deeper layers of 'meaning' and meaning structures in an experience. These...

  17. Dealing with Complex Causality in Realist Synthesis: The Promise of Qualitative Comparative Analysis

    Science.gov (United States)

    Sager, Fritz; Andereggen, Celine

    2012-01-01

    In this article, the authors state two arguments: first, that the four categories of context, politics, polity, and policy make an adequate framework for systematic review being both exhaustive and parsimonious; second, that the method of qualitative comparative analysis (QCA) is an appropriate methodical approach for gaining realistic results…

  18. Qualitative and quantitative analysis of mixtures of compounds containing both hydrogen and deuterium

    Science.gov (United States)

    Crespi, H. L.; Harkness, L.; Katz, J. J.; Norman, G.; Saur, W.

    1969-01-01

    Method allows qualitative and quantitative analysis of mixtures of partially deuterated compounds. Nuclear magnetic resonance spectroscopy determines location and amount of deuterium in organic compounds but not fully deuterated compounds. Mass spectroscopy can detect fully deuterated species but not the location.

  19. Using Qualitative Comparative Analysis to Explore Outcome Patterns of Grant Support to Farmer Organisations in Bolivia

    NARCIS (Netherlands)

    Ton, G.

    2015-01-01

    We used Qualitative Comparative Analysis (QCA) to study the combinations of factors that are consistently related to success or failure of grants given to farmer groups. Using data from a sample of 26 grant beneficiaries, we explored whether baseline characteristics of the organisations related to g

  20. Qualitative/Chemical Analyses of Ankaferd Hemostat and Its Antioxidant Content in Synthetic Gastric Fluids.

    Science.gov (United States)

    Koluman, Ahmet; Akar, Nejat; Malkan, Umit Y; Haznedaroglu, Ibrahim C

    2016-01-01

    Introduction. Ankaferd hemostat (ABS) is the first topical haemostatic agent involving the red blood cell-fibrinogen interactions. The antihemorrhagic efficacy of ABS has been tested in controlled clinical trials. The drug induces the formation of an encapsulated complex protein web with vital erythroid aggregation. The aim of this study is to detect the essential toxicity profile and the antioxidant molecules inside ABS. Methods. The pesticides were analyzed by GC-MS and LC-MS. The determination by ICP-MS after pressure digestion was performed for the heavy metals. HPLC was used for the detection of mycotoxins. Dioxin Response Chemically Activated Luciferase Gene Expression method was used for the dioxin evaluation. TOF-MS and spectra data were evaluated to detect the antioxidants and other molecules. Results. TOF-MS spectra revealed the presence of several antioxidant molecules (including tocotrienols, vitamin E, tryptophan, estriol, galangin, apigenin, oenin, 3,4-divanillyltetrahydrofuran, TBHQ, thymol, BHA, BHT, lycopene, glycyrrhetinic acid, and tomatine), which may have clinical implications in the pharmacobiological actions of ABS. Conclusion. The safety of ABS regarding the presence of heavy metals, pesticides, mycotoxins, GMO and dioxins, and PCBs was demonstrated. Thus the present toxicological results indicated the safety of ABS. The antioxidant content of ABS should be investigated in future studies. PMID:26925418

  1. Qualitative/Chemical Analyses of Ankaferd Hemostat and Its Antioxidant Content in Synthetic Gastric Fluids

    Directory of Open Access Journals (Sweden)

    Ahmet Koluman

    2016-01-01

    Full Text Available Introduction. Ankaferd hemostat (ABS is the first topical haemostatic agent involving the red blood cell-fibrinogen interactions. The antihemorrhagic efficacy of ABS has been tested in controlled clinical trials. The drug induces the formation of an encapsulated complex protein web with vital erythroid aggregation. The aim of this study is to detect the essential toxicity profile and the antioxidant molecules inside ABS. Methods. The pesticides were analyzed by GC-MS and LC-MS. The determination by ICP-MS after pressure digestion was performed for the heavy metals. HPLC was used for the detection of mycotoxins. Dioxin Response Chemically Activated Luciferase Gene Expression method was used for the dioxin evaluation. TOF-MS and spectra data were evaluated to detect the antioxidants and other molecules. Results. TOF-MS spectra revealed the presence of several antioxidant molecules (including tocotrienols, vitamin E, tryptophan, estriol, galangin, apigenin, oenin, 3,4-divanillyltetrahydrofuran, TBHQ, thymol, BHA, BHT, lycopene, glycyrrhetinic acid, and tomatine, which may have clinical implications in the pharmacobiological actions of ABS. Conclusion. The safety of ABS regarding the presence of heavy metals, pesticides, mycotoxins, GMO and dioxins, and PCBs was demonstrated. Thus the present toxicological results indicated the safety of ABS. The antioxidant content of ABS should be investigated in future studies.

  2. Global Qualitative Flow-Path Modeling for Local State Determination in Simulation and Analysis

    Science.gov (United States)

    Malin, Jane T. (Inventor); Fleming, Land D. (Inventor)

    1998-01-01

    For qualitative modeling and analysis, a general qualitative abstraction of power transmission variables (flow and effort) for elements of flow paths includes information on resistance, net flow, permissible directions of flow, and qualitative potential is discussed. Each type of component model has flow-related variables and an associated internal flow map, connected into an overall flow network of the system. For storage devices, the implicit power transfer to the environment is represented by "virtual" circuits that include an environmental junction. A heterogeneous aggregation method simplifies the path structure. A method determines global flow-path changes during dynamic simulation and analysis, and identifies corresponding local flow state changes that are effects of global configuration changes. Flow-path determination is triggered by any change in a flow-related device variable in a simulation or analysis. Components (path elements) that may be affected are identified, and flow-related attributes favoring flow in the two possible directions are collected for each of them. Next, flow-related attributes are determined for each affected path element, based on possibly conflicting indications of flow direction. Spurious qualitative ambiguities are minimized by using relative magnitudes and permissible directions of flow, and by favoring flow sources over effort sources when comparing flow tendencies. The results are output to local flow states of affected components.

  3. Chemical abundance analysis of 19 barium stars

    CERN Document Server

    Yang, G C; Spite, M; Chen, Y Q; Zhao, G; Zhang, B; Liu, G Q; Liu, Y J; Liu, N; Deng, L C; Spite, F; Hill, V; Zhang, C X

    2016-01-01

    We aim at deriving accurate atmospheric parameters and chemical abundances of 19 barium (Ba) stars, including both strong and mild Ba stars, based on the high signal-to-noise ratio and high resolution Echelle spectra obtained from the 2.16 m telescope at Xinglong station of National Astronomical Observatories, Chinese Academy of Sciences. The chemical abundances of the sample stars were obtained from an LTE, plane-parallel and line-blanketed atmospheric model by inputting the atmospheric parameters (effective temperatures, surface gravities, metallicity and microturbulent velocity) and equivalent widths of stellar absorption lines. These samples of Ba stars are giants indicated by atmospheric parameters, metallicities and kinematic analysis about UVW velocity. Chemical abundances of 17 elements were obtained for these Ba stars. Their light elements (O, Na, Mg, Al, Si, Ca, Sc, Ti, V, Cr, Mn and Ni) are similar to the solar abundances. Our samples of Ba stars show obvious overabundances of neutron-capture (n-ca...

  4. Representing WWW navigational data: a graphical methodology to support qualitative analysis

    OpenAIRE

    Honey Lucas

    1999-01-01

    This paper concerns the development and use of a graphical methodology in the analysis of individuals World Wide Web navigational behaviour. Specifically, it reports on the comparison of this methodology to other methodologies of qualitative analysis. Examples are given of the graphical representations of individuals interactions with particular World Wide Web medical resources, and the integration of these graphical representations with textual data considered. Indications for further develo...

  5. Representing WWW navigational data: a graphical methodology to support qualitative analysis

    Directory of Open Access Journals (Sweden)

    Honey Lucas

    1999-01-01

    Full Text Available This paper concerns the development and use of a graphical methodology in the analysis of individuals’ World Wide Web navigational behaviour. Specifically, it reports on the comparison of this methodology to other methodologies of qualitative analysis. Examples are given of the graphical representations of individuals’ interactions with particular World Wide Web medical resources, and the integration of these graphical representations with textual data considered. Indications for further development in this area are also suggested.

  6. Assessing collective defensive performances in football: A Qualitative Comparative Analysis of central back pairs

    OpenAIRE

    Kaufmann, David

    2014-01-01

    Ahead of the World Cup in Brazil the crucial question for the Swiss national coach is the nomination of the starting eleven central back pair. A fuzzy set Qualitative Comparative Analysis assesses the defensive performances of different Swiss central back pairs during the World Cup campaign (2011 – 2014). This analysis advises Ottmar Hitzfeld to nominate Steve von Bergen and Johan Djourou as the starting eleven central back pair. The alternative with a substantially weaker empirical validity ...

  7. Configurational explanation of marketing outcomes : a fuzzy-set qualitative comparative analysis approach

    OpenAIRE

    Vassinen, Antti

    2012-01-01

    As marketing, as a function and a process, is required to explain itself with more transparency, new tools and comprehensive analysis processes must be created and adopted, so that marketing performance and its determinants can systematically be understood and developed. In this dissertation, I present fuzzy-set qualitative comparative analysis (‘FS/QCA’; Ragin, 2000; Fiss, 2008; Rihoux and Ragin, 2009; and others) as a novel approach to assessing marketing performance. My key argument i...

  8. Qualitative and Quantitative Analysis of Lignan Constituents in Caulis Trachelospermi by HPLC-QTOF-MS and HPLC-UV

    Directory of Open Access Journals (Sweden)

    Xiao-Ting Liu

    2015-05-01

    Full Text Available A high-performance liquid chromatography coupled with quadrupole tandem time-of-flight mass (HPLC-QTOF-MS and ultraviolet spectrometry (HPLC-UV was established for simultaneous qualitative and quantitative analysis of the major chemical constituents in Caulis Trachelospermi, respectively. The analysis was performed on an Agilent Zorbax Eclipse Plus C18 column (4.6 mm × 150 mm, 5 μm using a binary gradient system of water and methanol, with ultraviolet absorption at 230 nm. Based on high-resolution ESI-MS/MS fragmentation behaviors of the reference standards, the characteristic cleavage patterns of lignano-9, 9'-lactones and lignano-8'-hydroxy-9, 9'-lactones were obtained. The results demonstrated that the characteristic fragmentation patterns are valuable for identifying and differentiating lignano-9,9'-lactones and lignano-8'-hydroxy-9,9'-lactones. As such, a total of 25 compounds in Caulis Trachelospermi were unambiguously or tentatively identified via comparisons with reference standards or literature. In addition, 14 dibenzylbutyrolatone lignans were simultaneously quantified in Caulis Trachelospermi by HPLC-UV method. The method is suitable for the qualitative and quantitative analyses of dibenzylbutyrolatone lignans in Caulis Trachelospermi.

  9. Qualitative and Quantitative Analysis of Andrographis paniculata by Rapid Resolution Liquid Chromatography/Time-of-Flight Mass Spectrometry

    Directory of Open Access Journals (Sweden)

    Jian-Fei Qin

    2013-09-01

    Full Text Available A rapid resolution liquid chromatography/time-of-flight tandem mass spectrometry (RRLC-TOF/MS method was developed for qualitative and quantitative analysis of the major chemical constituents in Andrographis paniculata. Fifteen compounds, including flavonoids and diterpenoid lactones, were unambiguously or tentatively identified in 10 min by comparing their retention times and accurate masses with standards or literature data. The characteristic fragmentation patterns of flavonoids and diterpenoid lactones were summarized, and the structures of the unknown compounds were predicted. Andrographolide, dehydroandrographolide and neoandrographolide were further quantified as marker substances. It was found that the calibration curves for all analytes showed good linearity (R2 > 0.9995 within the test ranges. The overall limits of detection (LODs and limits of quantification (LOQs were 0.02 μg/mL to 0.06 μg/mL and 0.06 μg/mL to 0.2 μg/mL, respectively. The relative standard deviations (RSDs for intra- and inter-day precisions were below 3.3% and 4.2%, respectively. The mean recovery rates ranged from 96.7% to 104.5% with the relative standard deviations (RSDs less than 2.72%. It is concluded that RRLC-TOF/MS is powerful and practical in qualitative and quantitative analysis of complex plant samples due to time savings, sensitivity, precision, accuracy and lowering solvent consumption.

  10. Analysis of Chemical Technology Division waste streams

    International Nuclear Information System (INIS)

    This document is a summary of the sources, quantities, and characteristics of the wastes generated by the Chemical Technology Division (CTD) of the Oak Ridge National Laboratory. The major contributors of hazardous, mixed, and radioactive wastes in the CTD as of the writing of this document were the Chemical Development Section, the Isotopes Section, and the Process Development Section. The objectives of this report are to identify the sources and the summarize the quantities and characteristics of hazardous, mixed, gaseous, and solid and liquid radioactive wastes that are generated by the Chemical Technology Division (CTD) of the Oak Ridge National Laboratory (ORNL). This study was performed in support of the CTD waste-reduction program -- the goals of which are to reduce both the volume and hazard level of the waste generated by the division. Prior to the initiation of any specific waste-reduction projects, an understanding of the overall waste-generation system of CTD must be developed. Therefore, the general approach taken in this study is that of an overall CTD waste-systems analysis, which is a detailed presentation of the generation points and general characteristics of each waste stream in CTD. The goal of this analysis is to identify the primary waste generators in the division and determine the most beneficial areas to initiate waste-reduction projects. 4 refs., 4 figs., 13 tabs

  11. Chemical detection, identification, and analysis system

    International Nuclear Information System (INIS)

    The chemical detection, identification, and analysis system (CDIAS) has three major goals. The first is to display safety information regarding chemical environment before personnel entry. The second is to archive personnel exposure to the environment. Third, the system assists users in identifying the stage of a chemical process in progress and suggests safety precautions associated with that process. In addition to these major goals, the system must be sufficiently compact to provide transportability, and it must be extremely simple to use in order to keep user interaction at a minimum. The system created to meet these goals includes several pieces of hardware and the integration of four software packages. The hardware consists of a low-oxygen, carbon monoxide, explosives, and hydrogen sulfide detector; an ion mobility spectrometer for airborne vapor detection; and a COMPAQ 386/20 portable computer. The software modules are a graphics kernel, an expert system shell, a data-base management system, and an interface management system. A supervisory module developed using the interface management system coordinates the interaction of the other software components. The system determines the safety of the environment using conventional data acquisition and analysis techniques. The low-oxygen, carbon monoxide, hydrogen sulfide, explosives, and vapor detectors are monitored for hazardous levels, and warnings are issued accordingly

  12. Qualitative analysis of a scalar-tensor theory with exponential potential

    CERN Document Server

    Batista, A B; Gonçalves, S V B; Tossa, J

    2001-01-01

    A qualitative analysis of a scalar-tensor cosmological model, with an exponential potential for the scalar field, is performed. The phase diagram for the flat case is constructed. It is shown that solutions with an initial and final inflationary behaviour appear. The conditions for which the scenario favored by supernova type Ia observations becomes an attractor in the space of the solutions are established.

  13. A Qualitative Study on Situation Analysis of Faith Tourism: The Case of Tarsus

    OpenAIRE

    KURAR, İhsan; AKBABA, Atilla; İNAL, M.Emin

    2015-01-01

    TThis study aims to assess the Faith Tourism Potential of Tarsus in four questions: strengths, weaknesses, opportunities and threats. The study is conducted by case approach which is one of the qualitative research patterns. The sample of the study consists of local administrators, tradesmen, archaeologists and religious representatives. The data obtained from face-to-face, semi structured interviews from shareholders was analysed by the “Content Analysis Method” through the Nvivo 8 qualitati...

  14. DEFINING A COHERENT ORGANISA-TIONAL VISUAL IDENTITY – A QUALITATIVE ANALYSIS

    OpenAIRE

    R.D. RIZEA; A.R. MUNTEANU

    2013-01-01

    In today’s competitive environment, any organisation should carefully design its commu-nication strategy as it reflects on its overall image. On one hand, this article aims to define what a good visual identity means by highlighting the elements of a good visual identity through a qualitative analysis of more than three dozen visual identities documents from organisations from different industries, private companies, governmental agencies and NGOs. Moreover, by observing different perspectiv...

  15. Interaction between international trade and economic growth: Evidence from qualitative comparative analysis

    OpenAIRE

    Asli Seda Bilman; Serdar Turkeli

    2013-01-01

    The relationship between international trade and growth is one of the most popular debates in international economics literature. Although there are numerous theoretical approaches and empirical studies about the issue, the direction of the causality and the magnitude of the interaction still remain unclear. In this study, qualitative comparative analysis introduced by Ragin (1987) is applied, different from the previous empirical studies on the topic. The results present the conditions for g...

  16. Team behaviors in emergency care: a qualitative study using behavior analysis of what makes team work

    OpenAIRE

    Mazzocato Pamela; Hvitfeldt Forsberg Helena; von Thiele Schwarz Ulrica

    2011-01-01

    Abstract Objective Teamwork has been suggested as a promising approach to improving care processes in emergency departments (ED). However, for teamwork to yield expected results, implementation must involve behavior changes. The aim of this study is to use behavior analysis to qualitatively examine how teamwork plays out in practice and to understand eventual discrepancies between planned and actual behaviors. Methods The study was set in a Swedish university hospital ED during the initial ph...

  17. Shockwave treatment for musculoskeletal diseases and bone consolidation: qualitative analysis of the literature

    OpenAIRE

    Paulo Kertzman; Mario Lenza; André Pedrinelli; Benno Ejnisman

    2015-01-01

    Shockwave treatment is an option within orthopedics. The exact mechanism through which shockwaves function for treating musculoskeletal diseases is unknown. The aim of this study was to make a qualitative analysis on the effectiveness of shockwave treatment among patients with musculoskeletal pathological conditions and pseudarthrosis. Searches were conducted in the Cochrane Library, Medline and Lilacs databases. Thirty-nine studies that reported using shockwave treatment for musculoskeletal ...

  18. Pathologic Analysis of Control Plans for Air Pollution Management in Tehran Metropolis: A Qualitative Study

    OpenAIRE

    Shahrabi, Narges Salehi; Pourezzat, Aliasghar; Fayaz-Bakhsh, Ahmad; Mafimoradi, Shiva; Poursafa, Parinaz

    2013-01-01

    Background: Regarding the importance of air pollution issue for large cities, as Tehran metropolis, many plans, programs, projects and regulations have been developed to manage urban air pollution. However, most of them failed to decline the pollution. The purpose of this study is to pathologically analyze air-pollution control plans in order to offer effective solutions for Tehran metropolis. Methods: A qualitative content analysis and a semi-structured interview with 14 practicing professio...

  19. Pathologic analysis of control plans for air pollution management in tehran metropolis: A qualitative study

    OpenAIRE

    Narges Salehi Shahrabi; Aliasghar Pourezzat; Fayaz-Bakhsh Ahmad; Shiva Mafimoradi; Parinaz Poursafa

    2013-01-01

    Background: Regarding the importance of air pollution issue for large cities, as Tehran metropolis, many plans, programs, projects and regulations have been developed to manage urban air pollution. However, most of them failed to decline the pollution. The purpose of this study is to pathologically analyze air-pollution control plans in order to offer effective solutions for Tehran metropolis. Methods: A qualitative content analysis and a semi-structured interview with 14 practicing profe...

  20. Reliability of the Decay Heat Removal System of Phenix, Concepts and Qualitative Reliability Analysis

    International Nuclear Information System (INIS)

    The decay heat removal in the Phenix Reactor has been designed with high level of safety and redundancy so that it should exist at least one way of removal whatever incident would be generated. In the following paragraph, we indicate the principal criteria used in the design, the different ways of operating and the global and qualitative reliability analysis in order to show the high degree of safety

  1. Qualitative Analysis of Chaos in Nonlinear Sampled Data Systems and System Identification

    OpenAIRE

    Haynes, B.R.; S. A. Billings

    1991-01-01

    The analysis of nonlinear sampled data systems is considered. A qualitative approach is adopted in which the system is suspended in a parameterised cell state space framework. Application of a global unravelling algorithm reveals the type of behaviour typically found using dynamical systems techniques. Steady state, periodic and aperiodic or chaotic behaviour is detected. System identification techniques are then applied. The resulting nonlinear recursive input output model is also analysed w...

  2. Qualitative Analysis of the UK University Spin-Out Company Formation and Early Development Process

    OpenAIRE

    Igata, Eishi

    2005-01-01

    Based upon the Triple-Helix model of university-industry interaction, this study investigates the technology-based university spin-out companies and the assistance being provided by other stakeholders. The research reveals that the spin-out strategy of the university and the practical assistance by the university are the significant factors of the spin-out companies financial performance. Using one Nottingham University spin-out company as a model case, detailed qualitative analysis of ea...

  3. Using the framework method for the analysis of qualitative data in multi-disciplinary health research

    OpenAIRE

    Gale, Nicola K; Heath, Gemma; Cameron, Elaine; Rashid, Sabina; Redwood, Sabi

    2013-01-01

    Background The Framework Method is becoming an increasingly popular approach to the management and analysis of qualitative data in health research. However, there is confusion about its potential application and limitations. Discussion The article discusses when it is appropriate to adopt the Framework Method and explains the procedure for using it in multi-disciplinary health research teams, or those that involve clinicians, patients and lay people. The stages of the method are illustrated u...

  4. Interviews with the dead: using meta-life qualitative analysis to validate Hippocrates' theory of humours

    OpenAIRE

    Secretion, F; Conjur, G S; Attitude, S P

    1998-01-01

    BACKGROUND: Hippocrates devised his theory of the 4 humours (blood, phlegm, black bile and yellow bile) 24 centuries ago. Since then, medicine has evolved into a complex body of confusing and sometimes contradictory facts. The authors, seeing a need to determine the validity of his theory, hired a psychic. METHODS: The psychic interviewed 4 eminent ancient physicians, including Hippocrates. A randomized double-blind cross-over design was used for this meta-life qualitative analysis. RESULTS: ...

  5. Thematic Analysis of Iranian Female Adolescents’ Perceptions About HIV/AIDS: A Qualitative Study

    OpenAIRE

    Elham Ahmadnezhad; Nariman Sepehrvand; Sanaz Hatami; Farshid FayyazJahani; Somayyeh Ahmadnezhad; Mohammad Karamyyar; Shahrzad BazarganHejazi

    2013-01-01

    Background: HIV/AIDS continues to be a major global health problem. The aim of this study was to evaluate common opinions and beliefs about HIV/AIDS among Iranian teenager girls. Methods: This Qualitative study (face-to-face interviews with tape recording) was conducted among fifty female teenager school students in Urmia-Iran. Results: The thematic analysis indicated the main information sources for HIV/AIDS among teenage girls to be their mother and teachers. The participants had litt...

  6. Partial differential equations with variable exponents variational methods and qualitative analysis

    CERN Document Server

    Radulescu, Vicentiu D

    2015-01-01

    Partial Differential Equations with Variable Exponents: Variational Methods and Qualitative Analysis provides researchers and graduate students with a thorough introduction to the theory of nonlinear partial differential equations (PDEs) with a variable exponent, particularly those of elliptic type. The book presents the most important variational methods for elliptic PDEs described by nonhomogeneous differential operators and containing one or more power-type nonlinearities with a variable exponent. The authors give a systematic treatment of the basic mathematical theory and constructive meth

  7. The sensory experiences of adults with autism spectrum disorder: a qualitative analysis

    OpenAIRE

    Robertson, Ashley E.; Simmons, David R.

    2015-01-01

    It has been well established that individuals with autism spectrum disorder report unusual experiences with sensory stimuli compared with typically developing individuals. However, there is a paucity of research exploring the nature of such experiences. A focus group was conducted with six adults with a diagnosis of autism or Asperger syndrome. Data were coded and analysed using an inductive, qualitative thematic analysis. Four main themes encompassing both positive and negative sensory exper...

  8. Collective Adaptive Systems: Qualitative and Quantitative Modelling and Analysis (Dagstuhl Seminar 14512)

    OpenAIRE

    Hillston, Jane; Pitt, Jeremy; Wirsing, Martin; Zambonelli, Franco

    2015-01-01

    This report documents the program and the outcomes of Dagstuhl Seminar 14512 "Collective Adaptive Systems: Qualitative and Quantitative Modelling and Analysis". Besides presentations on current work in the area, the seminar focused on the following topics: (i) Modelling techniques and languages for collective adaptive systems based on the above formalisms. (ii) Verification of collective adaptive systems. (iii) Humans-in-the-loop in collective adaptive systems.

  9. HPTLC Hyphenated with FTIR: Principles, Instrumentation and Qualitative Analysis and Quantitation

    Science.gov (United States)

    Cimpoiu, Claudia

    In recent years, much effort has been devoted to the coupling of high-performance thin-layer chromatography (HPTLC) with spectrometric methods because of the robustness and simplicity of HPTLC and the need for detection techniques that provide identification and determination of sample constituents. IR is one of the spectroscopic methods that have been coupled with HPTLC. IR spectroscopy has a high potential for the elucidation of molecular structures, and the characteristic absorption bands can be used for compound-specific detection. HPTLC-FTIR coupled method has been widely used in the modern laboratories for the qualitative and quantitative analysis. The potential of this method is demonstrated by its application in different fields of analysis such as drug analysis, forensic analysis, food analysis, environmental analysis, biological analysis, etc. The hyphenated HPTLC-FTIR technique will be developed in the future with the aim of taking full advantage of this method.

  10. The Virtual ChemLab Project: A Realistic and Sophisticated Simulation of Inorganic Qualitative Analysis

    Science.gov (United States)

    Woodfield, Brian F.; Catlin, Heidi R.; Waddoups, Gregory L.; Moore, Melissa S.; Swan, Richard; Allen, Rob; Bodily, Greg

    2004-11-01

    We have created a set of sophisticated and realistic laboratory simulations for use in freshman- and sophomore-level chemistry classes and laboratories called Virtual ChemLab. We have completed simulations for Inorganic Qualitative Analysis, Organic Synthesis and Organic Qualitative Analysis, Experiments in Quantum Chemistry, Gas Properties, Titration Experiments, and Calorimetric and Thermochemical Experiments. The purpose of our simulations is to reinforce concepts taught in the classroom, provide an environment for creative learning, and emphasize the thinking behind instructional laboratory experiments. We have used the inorganic simulation extensively with thousands of students in our department at Brigham Young University. We have learned from our evaluation that: (i) students enjoy using these simulations and find them to be an asset in learning effective problem-solving strategies, (ii) students like the fact that they can both reproduce experimental procedures and explore various topics in ways they choose, and (iii) students naturally divide themselves into two groups: creative learners, who excel in an open-ended environment of virtual laboratories, and structured learners, who struggle in this same environment. In this article, we describe the Inorganic Qualitative Analysis simulation; we also share specific evaluation findings from using the inorganic simulation in classroom and laboratory settings.

  11. Chemical identification and its quality assurance

    CERN Document Server

    Milman, Boris L

    2013-01-01

    Chemical Identification and its Quality Assurance shows how to apply the principles of quality assurance for qualitative chemical analysis. The principles of identification and metrological basics are presented, in addition to the reliability and errors involved with chemical identification.

  12. VALIDATION GUIDELINES FOR LABORATORIES PERFORMING FORENSIC ANALYSIS OF CHEMICAL TERRORISM

    Science.gov (United States)

    The Scientific Working Group on Forensic Analysis of Chemical Terrorism (SWGFACT) has developed the following guidelines for laboratories engaged in the forensic analysis of chemical evidence associated with terrorism. This document provides a baseline framework and guidance for...

  13. Los Alamos National Laboratory Center for direct chemical analysis of materials

    International Nuclear Information System (INIS)

    The Center for Direct Chemical Analysis at Los Alamos National Laboratory is undertaking a major effort to develop, improve, and implement direct analysis techniques for radionuclide, organic, and inorganic constituents. The Center consists of a multidisciplinary team of researchers who possess expertise in the quantitative and qualitative characterization of solid materials using a variety of analytical technologies. Materials include soils and sludges, building materials, foods, chemicals, and atmospheric gases. Direct chemical analysis techniques measure the analytes directly in the solid material with minimal sample pretreatment, whereas conventional techniques, such as atomic absorption and emission spectrochemistry, require that the solid materials be rendered in aqueous solution using concentrated acids prior to measurement. Direct chemical analysis completely bypasses the digestion process, thereby increasing the sample throughout and saving both time and money. Direct chemical analysis is unique in that it alone can conduct certain specialized but highly useful types of analysis, such as depth-profiling and the chemical structural characterization of surfaces. In addition, some direct analytical techniques eliminate the sampling step and permit rapid analysis of samples at the point of origin. Direct analysis in situ would further reduce costs and potential hazards related to sample collection and transport to the analytical laboratory

  14. Expediting the Analysis of Qualitative Data in Evaluation: A Procedure for the Rapid Identification of Themes from Audio Recordings (RITA)

    Science.gov (United States)

    Neal, Jennifer Watling; Neal, Zachary P.; VanDyke, Erika; Kornbluh, Mariah

    2015-01-01

    Qualitative data offer advantages to evaluators, including rich information about stakeholders' perspectives and experiences. However, qualitative data analysis is labor-intensive and slow, conflicting with evaluators' needs to provide punctual feedback to their clients. In this method note, we contribute to the literature on rapid…

  15. Measurement and Meaning : Combining Quantitative and Qualitative Methods for the Analysis of Poverty and Social Exclusion in Latin America

    OpenAIRE

    Gacitua-Mario, Estanislao; Wodon, Quentin

    2001-01-01

    This report consists of a collection of case studies from Latin America combining qualitative and quantitative research methods for the analysis of poverty within a social exclusion framework. The first chapter provides an overview of the differences between quantitative and qualitative methods, and the gains from using both types of methods in applied work. The other chapters are devoted ...

  16. The Influence of Power Shifts in Data Collection and Analysis Stages: A Focus on Qualitative Research Interview

    Science.gov (United States)

    Anyan, Frederick

    2013-01-01

    This paper analyzes the power relation between the interviewer and the interviewee in the qualitative research interview methodology. The paper sets out to grapple with the extent to which the dynamisms in power shifts influence data collection and analysis in the interview methodology. The exploration of power shifts in the qualitative research…

  17. A Content Analysis of Qualitative Research in the Journal of Teaching in Physical Education from 1998 to 2008

    Science.gov (United States)

    Hemphill, Michael A.; Richards, K. Andrew R.; Templin, Thomas J.; Blankenship, Bonnie Tjeerdsma

    2012-01-01

    Previous reviews of research have documented the increasing use of qualitative inquiry in physical education. In this research note, the authors present a content analysis of qualitative research articles published between 1998 and 2008 in the Journal of Teaching in Physical Education (JTPE). A total of 110 empirical articles were published that…

  18. Advances in liquid chromatography-high-resolution mass spectrometry for quantitative and qualitative environmental analysis.

    Science.gov (United States)

    Aceña, Jaume; Stampachiacchiere, Serena; Pérez, Sandra; Barceló, Damià

    2015-08-01

    This review summarizes the advances in environmental analysis by liquid chromatography-high-resolution mass spectrometry (LC-HRMS) during the last decade and discusses different aspects of their application. LC-HRMS has become a powerful tool for simultaneous quantitative and qualitative analysis of organic pollutants, enabling their quantitation and the search for metabolites and transformation products or the detection of unknown compounds. LC-HRMS provides more information than low-resolution (LR) MS for each sample because it can accurately determine the mass of the molecular ion and its fragment ions if it can be used for MS-MS. Another advantage is that the data can be processed using either target analysis, suspect screening, retrospective analysis, or non-target screening. With the growing popularity and acceptance of HRMS analysis, current guidelines for compound confirmation need to be revised for quantitative and qualitative purposes. Furthermore, new commercial software and user-built libraries are required to mine data in an efficient and comprehensive way. The scope of this critical review is not to provide a comprehensive overview of the many studies performed with LC-HRMS in the field of environmental analysis, but to reveal its advantages and limitations using different workflows. PMID:26138893

  19. Ethical Analysis of a Qualitative Researcher's Unease in Encountering a Participant's Existential Ambivalence.

    Science.gov (United States)

    Moreno-Fergusson, Marìa Elisa; Grace, Pamela J

    2016-01-01

    Gaining in-depth understanding of the experiences of persons who have suffered traumatic events with physical and psychological sequelae is important for building effective interventions. However, qualitative research of this kind can be emotionally difficult for the researcher whose research interests derive from practice experiences with the population studied. It may be difficult for the researcher to separate the role of inquirer from that of practitioner. We explore this issue using ethical analysis to differentiate the responsibilities of the researcher from those of the clinician. In the first part of the chapter, we provide some background on the population studied and traumatic spinal cord injury and its aftermath as context for the issues raised by the narrative. Then, we describe briefly the first author's research exploring the meaning of bodily changes and embodiment in persons who have suffered a traumatic spinal cord injury. We provide the part of Jack's story that most troubled the researcher and led her to discuss the situation with an ethics colleague. Finally, we use the tools of moral reasoning, ethical analysis, and principles of research ethics to explore the pertinent excerpt of the narrative. The resulting clarifications are laid out for the reader with the intent of assisting other qualitative researchers in determining the extent and limits of their obligations to participants of qualitative studies, especially those that explore sensitive issues. PMID:26673376

  20. Dissecting life with a Jewish scalpel: a qualitative analysis of Jewish-centered family life.

    Science.gov (United States)

    Semans, M P; Fish, L S

    2000-01-01

    This article highlights findings from a qualitative analysis of the ways in which Jewish families identify how Judaism influences their lives. A theoretical sample of two religious and two cultural families were chosen from a larger sample of 48 Jewish families in Central New York. The qualitative part of this study, which was part of a larger multimethod investigation, was done in order to gather inductively any data that would allow the researchers to build a theory about a particular type of ethnic identity--Jewish identity--and how it affects family dynamics. Eleven categories emerged from this study, which suggest that this particular type of ethnic identity influences many family dynamics, for example, styles of communicating, parenting, values, and family rituals. The participants seem to dissect the world with a "Jewish scalpel." This "scalpel" informs their daily interactions, their parenting styles, and their childrens' self-perceptions. PMID:10742935

  1. Surgical swab counting: a qualitative analysis from the perspective of the scrub nurse.

    Science.gov (United States)

    D'Lima, D; Sacks, M; Blackman, W; Benn, J

    2014-05-01

    The aim of the study was to conduct a qualitative exploration of the sociotechnical processes underlying retained surgical swabs, and to explore the fundamental reasons why the swab count procedure and related protocols fail in practice. Data was collected through a set of 27 semistructured qualitative interviews with scrub nurses from a large, multi-site teaching hospital. Interview transcripts were analysed using established constant comparative methods, moving between inductive and deductive reasoning. Key findings were associated with interprofessional perspectives, team processes and climate and responsibility for the swab count. The analysis of risk factors revealed that perceived social and interprofessional issues played a significant role in the reliability of measures to prevent retained swabs. This work highlights the human, psychological and organisational factors that impact upon the reliability of the process and gives rise to recommendations to address contextual factors and improve perioperative practice and training. PMID:24908834

  2. Why Study Online in Upper Secondary School? Qualitative Analysis of Online Learning Experiences

    Directory of Open Access Journals (Sweden)

    Tiina Kokko

    2015-01-01

    Full Text Available In Finland, online learning has become more common in recent years. In this study, we examined why adult students chose to study online for upper secondary school. The research also focused on the support needed for learning from a special education perspective. Both qualitative and quantitative data were collected using an electronic questionnaire. In total, 58 students responded. Data were analyzed qualitatively using the content analysis technique. The findings indicate that the main reasons for online studies are similar in Finland to those found internationally: flexibility of timetables, the student’s health condition, and family situations. The findings also indicate that a student’s school history leads them to choose online studies. This history included a lack of support, health issues, bullying, and too large class size. Suggested future research and practical implications also are discussed.

  3. An Analysis on Qualitative Bankruptcy Prediction Rules using Ant-Miner

    OpenAIRE

    Martin, A. (Alan); T.Miranda Lakshmi; V. Prasanna Venkatesan

    2013-01-01

    Qualitative bankruptcy prediction rules represent experts' problem-solving knowledge to predict qualitative bankruptcy. The objective of this research is predicting qualitative bankruptcy using ant-miner algorithm. Qualitative data are subjective and more difficult to measure. This approach uses qualitative risk factors which include fourteen internal risk factors and sixty eight external risk factors associated with it. By using these factors qualitative prediction rules are generated using ...

  4. Quantitative and Qualitative Analysis of the Quality of Life of Individuals With Eating Disorders

    Science.gov (United States)

    McCune, Ashley M.; Mandal, Konoy; Lundgren, Jennifer D.

    2015-01-01

    Objective: To examine the quality of a broad range of life domains using both quantitative and qualitative methodologies. Method: Forty-eight individuals seeking inpatient treatment for an eating disorder (mean age = 29.8 years, female = 100%, white = 96.4%) from 2007 to 2009 completed the Quality of Life Inventory (QOLI) and the Eating Disorder Examination Questionnaire; a medical chart review confirmed diagnosis and treatment history. Patients diagnosed with anorexia nervosa (n = 24) and bulimia nervosa (n = 24) were compared. Body mass index (kg/m2), treatment history, number of comorbid psychiatric conditions, and eating disorder severity were used to predict quality of life. Finally, an inductive content analysis was performed on qualitative QOLI responses to contextualize the quantitative findings. Results: Participants with anorexia nervosa, compared to those with bulimia nervosa, reported significantly less satisfaction with the domain of relatives (F1,46 = 5.35; P = .025); no other significant group differences were found. The only significant predictor of QOLI global score was number of previous treatments (F1,41 = 8.67; P = .005; R2 = 0.175). Content analysis of qualitative data yielded complementary findings to the quantitative data; interesting group differences emerged for satisfaction with health with implications for measuring quality of life domains. Conclusions: Across several life domains, individuals seeking treatment for anorexia nervosa and bulimia nervosa appear to have similar levels of satisfaction, as evidenced by numeric and descriptive responses. Satisfaction with relatives, however, appears to differ between groups and suggests a specific target for intervention among patients in treatment for anorexia nervosa (eg, a family-based intervention such as the Maudsley approach). The use of quantitative and qualitative assessments, such as the QOLI, provides more clinically meaningful, contextualized information about quality of life than

  5. A qualitative meta-analysis examining clients' experiences of psychotherapy: A new agenda.

    Science.gov (United States)

    Levitt, Heidi M; Pomerville, Andrew; Surace, Francisco I

    2016-08-01

    This article argues that psychotherapy practitioners and researchers should be informed by the substantive body of qualitative evidence that has been gathered to represent clients' own experiences of therapy. The current meta-analysis examined qualitative research studies analyzing clients' experiences within adult individual psychotherapy that appeared in English-language journals. This omnibus review integrates research from across psychotherapy approaches and qualitative methods, focusing on the cross-cutting question of how clients experience therapy. It utilized an innovative method in which 67 studies were subjected to a grounded theory meta-analysis in order to develop a hierarchy of data and then 42 additional studies were added into this hierarchy using a content meta-analytic method-summing to 109 studies in total. Findings highlight the critical psychotherapy experiences for clients, based upon robust findings across these research studies. Process-focused principles for practice are generated that can enrich therapists' understanding of their clients in key clinical decision-making moments. Based upon these findings, an agenda is suggested in which research is directed toward heightening therapists' understanding of clients and recognizing them as agents of change within sessions, supporting the client as self-healer paradigm. This research aims to improve therapists' sensitivity to clients' experiences and thus can expand therapists' attunement and intentionality in shaping interventions in accordance with whichever theoretical orientation is in use. The article advocates for the full integration of the qualitative literature in psychotherapy research in which variables are conceptualized in reference to an understanding of clients' experiences in sessions. (PsycINFO Database Record PMID:27123862

  6. Sonographer practitioner development in Australia: Qualitative analysis of an Australian sonographers' survey

    International Nuclear Information System (INIS)

    Sonographer practitioner development involves the expansion and extension of the sonographer role to include reporting on ultrasound examinations. Australian sonographers have not seen the same degree of role extension and expansion as their counterparts in the United Kingdom, despite increasing levels of discussion regarding sonographer practitioner development. The aim of this study was to determine if Australian sonographers want to extend their professional role and what they consider are the important issues associated with role extension. This paper reports on qualitative data derived from a survey of Australian sonographers and investigates if Australian sonographers are interested in extending and expanding their professional role and responsibilities and, if they do, what might be necessary or desirable from a professional point of view for this change to occur. A survey was mailed to all members of the Australian Sonographers Association (ASA) in October 2006. The 31-item survey included 28 closed-ended and 3 opened-ended items to provide both quantitative and qualitative data. The quantitative data will be reported separately. Qualitative data was derived from responses to the opened-ended questions, which asked respondents to elaborate on their attitudes and feelings about role extension and development. Analysis used Nvivo7 software to aid in uncovering common themes from the qualitative data. The analysis focused on the reported incentives or motivations for becoming a sonographer practitioner as well as disincentives or perceived hurdles that would discourage respondents from becoming sonographer practitioners. The three most reported incentives or motivations for becoming a sonographer practitioner were professional recognition, remuneration and increased knowledge. The three most commonly reported disincentives or perceived hurdles that would discourage respondents from becoming sonographer practitioners were legal issues, insurance and further

  7. High-resolution mass spectrometry for integrated qualitative and quantitative analysis of pharmaceuticals in biological matrices.

    Science.gov (United States)

    Hopfgartner, Gérard; Tonoli, David; Varesio, Emmanuel

    2012-03-01

    Quantitative and qualitative high-resolution (HR) dependent and independent acquisition schemes on a QqTOF MS (with resolving power 20,000-40,000) were investigated for the analysis of pharmaceutical compounds in biological fluids. High-resolution selected reaction monitoring (HR-SRM) was found to be linear over three orders of magnitude for quantitative analysis of paracetamol in human plasma, offering a real alternative to triple quadrupole LC-SRM/MS. Metabolic stability of talinolol in microsomes was characterized by use of three different acquisition schemes: (i) information-dependent acquisition (IDA) with a TOF MS experiment as survey scan and product-ion scan as dependent scan; (ii) MS(ALL) by collecting TOF mass spectra with and without fragmentation by alternating the collision energy of the collision cell between a low (i.e., 10 eV) and high setting (i.e., 40 eV); and (iii) a novel independent acquisition mode referred to as "sequential window acquisition of all theoretical fragment-ion spectra" (SWATH) or "global precursor ions scan mode" (GPS) in which sequential precursor ions windows (typically 20 u) are used to collect the same spectrum precursor and fragment ions using a collision energy range. SWATH or GPS was found to be superior to IDA or MS(ALL) in combination with UHPLC for qualitative analysis but requires a rapidly acquiring mass spectrometer. Finally, the GPS concept was used for QUAL/QUAN analysis (i.e. integration of qualitative and quantitative analysis) of bosentan and its metabolites in urine over a concentration range from 5 to 2,500 ng mL(-1). PMID:22203371

  8. Success Factors of European Syndromic Surveillance Systems: A Worked Example of Applying Qualitative Comparative Analysis.

    Directory of Open Access Journals (Sweden)

    Alexandra Ziemann

    Full Text Available Syndromic surveillance aims at augmenting traditional public health surveillance with timely information. To gain a head start, it mainly analyses existing data such as from web searches or patient records. Despite the setup of many syndromic surveillance systems, there is still much doubt about the benefit of the approach. There are diverse interactions between performance indicators such as timeliness and various system characteristics. This makes the performance assessment of syndromic surveillance systems a complex endeavour. We assessed if the comparison of several syndromic surveillance systems through Qualitative Comparative Analysis helps to evaluate performance and identify key success factors.We compiled case-based, mixed data on performance and characteristics of 19 syndromic surveillance systems in Europe from scientific and grey literature and from site visits. We identified success factors by applying crisp-set Qualitative Comparative Analysis. We focused on two main areas of syndromic surveillance application: seasonal influenza surveillance and situational awareness during different types of potentially health threatening events.We found that syndromic surveillance systems might detect the onset or peak of seasonal influenza earlier if they analyse non-clinical data sources. Timely situational awareness during different types of events is supported by an automated syndromic surveillance system capable of analysing multiple syndromes. To our surprise, the analysis of multiple data sources was no key success factor for situational awareness.We suggest to consider these key success factors when designing or further developing syndromic surveillance systems. Qualitative Comparative Analysis helped interpreting complex, mixed data on small-N cases and resulted in concrete and practically relevant findings.

  9. Success Factors of European Syndromic Surveillance Systems: A Worked Example of Applying Qualitative Comparative Analysis

    Science.gov (United States)

    Ziemann, Alexandra; Fouillet, Anne; Brand, Helmut; Krafft, Thomas

    2016-01-01

    Introduction Syndromic surveillance aims at augmenting traditional public health surveillance with timely information. To gain a head start, it mainly analyses existing data such as from web searches or patient records. Despite the setup of many syndromic surveillance systems, there is still much doubt about the benefit of the approach. There are diverse interactions between performance indicators such as timeliness and various system characteristics. This makes the performance assessment of syndromic surveillance systems a complex endeavour. We assessed if the comparison of several syndromic surveillance systems through Qualitative Comparative Analysis helps to evaluate performance and identify key success factors. Materials and Methods We compiled case-based, mixed data on performance and characteristics of 19 syndromic surveillance systems in Europe from scientific and grey literature and from site visits. We identified success factors by applying crisp-set Qualitative Comparative Analysis. We focused on two main areas of syndromic surveillance application: seasonal influenza surveillance and situational awareness during different types of potentially health threatening events. Results We found that syndromic surveillance systems might detect the onset or peak of seasonal influenza earlier if they analyse non-clinical data sources. Timely situational awareness during different types of events is supported by an automated syndromic surveillance system capable of analysing multiple syndromes. To our surprise, the analysis of multiple data sources was no key success factor for situational awareness. Conclusions We suggest to consider these key success factors when designing or further developing syndromic surveillance systems. Qualitative Comparative Analysis helped interpreting complex, mixed data on small-N cases and resulted in concrete and practically relevant findings. PMID:27182731

  10. Systems analysis of past, present, and future chemical terrorism scenarios.

    Energy Technology Data Exchange (ETDEWEB)

    Hoette, Trisha Marie

    2012-03-01

    Throughout history, as new chemical threats arose, strategies for the defense against chemical attacks have also evolved. As a part of an Early Career Laboratory Directed Research and Development project, a systems analysis of past, present, and future chemical terrorism scenarios was performed to understand how the chemical threats and attack strategies change over time. For the analysis, the difficulty in executing chemical attack was evaluated within a framework of three major scenario elements. First, historical examples of chemical terrorism were examined to determine how the use of chemical threats, versus other weapons, contributed to the successful execution of the attack. Using the same framework, the future of chemical terrorism was assessed with respect to the impact of globalization and new technologies. Finally, the efficacy of the current defenses against contemporary chemical terrorism was considered briefly. The results of this analysis justify the need for continued diligence in chemical defense.

  11. Quantitative and qualitative shifts in defensive metabolites define chemical defense investment during leaf development in Inga, a genus of tropical trees.

    Science.gov (United States)

    Wiggins, Natasha L; Forrister, Dale L; Endara, María-José; Coley, Phyllis D; Kursar, Thomas A

    2016-01-01

    Selective pressures imposed by herbivores are often positively correlated with investments that plants make in defense. Research based on the framework of an evolutionary arms race has improved our understanding of why the amount and types of defenses differ between plant species. However, plant species are exposed to different selective pressures during the life of a leaf, such that expanding leaves suffer more damage from herbivores and pathogens than mature leaves. We hypothesize that this differential selective pressure may result in contrasting quantitative and qualitative defense investment in plants exposed to natural selective pressures in the field. To characterize shifts in chemical defenses, we chose six species of Inga, a speciose Neotropical tree genus. Focal species represent diverse chemical, morphological, and developmental defense traits and were collected from a single site in the Amazonian rainforest. Chemical defenses were measured gravimetrically and by characterizing the metabolome of expanding and mature leaves. Quantitative investment in phenolics plus saponins, the major classes of chemical defenses identified in Inga, was greater for expanding than mature leaves (46% and 24% of dry weight, respectively). This supports the theory that, because expanding leaves are under greater selective pressure from herbivores, they rely more upon chemical defense as an antiherbivore strategy than do mature leaves. Qualitatively, mature and expanding leaves were distinct and mature leaves contained more total and unique metabolites. Intraspecific variation was greater for mature leaves than expanding leaves, suggesting that leaf development is canalized. This study provides a snapshot of chemical defense investment in a speciose genus of tropical trees during the short, few-week period of leaf development. Exploring the metabolome through quantitative and qualitative profiling enables a more comprehensive examination of foliar chemical defense investment

  12. Policies and design elements for the repowering of wind farms: A qualitative analysis of different options

    Energy Technology Data Exchange (ETDEWEB)

    Rio, Pablo del, E-mail: pablo.delrio@cchs.csic.e [Consejo Superior de Investigaciones Cientificas, Calle Albasanz 26-28, Madrid 28037 (Spain); Calvo Silvosa, Anxo, E-mail: calvo@udc.e [Universidade da Coruna, Departamento de Economia Financeira e Contabilidade, Campus de Elvina s/n, A Coruna 15071 (Spain); Iglesias Gomez, Guillermo, E-mail: gwig@udc.e [Universidade da Coruna, Departamento de Economia Aplicada I, Campus de Elvina s/n, A Coruna 15071 (Spain)

    2011-04-15

    Repowering of a wind farm is the process of replacing existing wind turbines with new turbines that either have a larger nameplate capacity or more efficiency, resulting in a net increase of the power generated. Although repowering brings, both, social and private benefits, there are also several obstacles to repowering which justify public support. The aim of this paper is to provide an overview and a qualitative analysis of instruments and design options to support repowering of on-shore wind farms. The multicriteria analysis carried out in this paper shows that all instruments have their advantages and drawbacks. However, feed-in tariffs and investment subsidies seem to be particularly appropriate instruments in this regard. Furthermore, we provide an assessment of different design options to promote repowering according to key assessment criteria. The relevance of design elements hinges on the fact that these are the ones directly affecting the variables that are relevant in the decision to repower (capacity factors and investment costs). - Research highlights: {yields} This paper provides a qualitative analysis of instruments and design options to support repowering in wind farms. {yields} The multicriteria analysis has shown that all instruments have their advantages and drawbacks regarding promotion of repowering. {yields} However, feed-in tariffs and investment subsidies seem to be particularly appropriate instruments in this regard. {yields} The choice of design elements within instruments is at least as important to promote repowering as the choice of specific instruments.

  13. Multivariate qualitative analysis of banned additives in food safety using surface enhanced Raman scattering spectroscopy

    Science.gov (United States)

    He, Shixuan; Xie, Wanyi; Zhang, Wei; Zhang, Liqun; Wang, Yunxia; Liu, Xiaoling; Liu, Yulong; Du, Chunlei

    2015-02-01

    A novel strategy which combines iteratively cubic spline fitting baseline correction method with discriminant partial least squares qualitative analysis is employed to analyze the surface enhanced Raman scattering (SERS) spectroscopy of banned food additives, such as Sudan I dye and Rhodamine B in food, Malachite green residues in aquaculture fish. Multivariate qualitative analysis methods, using the combination of spectra preprocessing iteratively cubic spline fitting (ICSF) baseline correction with principal component analysis (PCA) and discriminant partial least squares (DPLS) classification respectively, are applied to investigate the effectiveness of SERS spectroscopy for predicting the class assignments of unknown banned food additives. PCA cannot be used to predict the class assignments of unknown samples. However, the DPLS classification can discriminate the class assignment of unknown banned additives using the information of differences in relative intensities. The results demonstrate that SERS spectroscopy combined with ICSF baseline correction method and exploratory analysis methodology DPLS classification can be potentially used for distinguishing the banned food additives in field of food safety.

  14. Policies and design elements for the repowering of wind farms: A qualitative analysis of different options

    International Nuclear Information System (INIS)

    Repowering of a wind farm is the process of replacing existing wind turbines with new turbines that either have a larger nameplate capacity or more efficiency, resulting in a net increase of the power generated. Although repowering brings, both, social and private benefits, there are also several obstacles to repowering which justify public support. The aim of this paper is to provide an overview and a qualitative analysis of instruments and design options to support repowering of on-shore wind farms. The multicriteria analysis carried out in this paper shows that all instruments have their advantages and drawbacks. However, feed-in tariffs and investment subsidies seem to be particularly appropriate instruments in this regard. Furthermore, we provide an assessment of different design options to promote repowering according to key assessment criteria. The relevance of design elements hinges on the fact that these are the ones directly affecting the variables that are relevant in the decision to repower (capacity factors and investment costs). - Research highlights: → This paper provides a qualitative analysis of instruments and design options to support repowering in wind farms. → The multicriteria analysis has shown that all instruments have their advantages and drawbacks regarding promotion of repowering. → However, feed-in tariffs and investment subsidies seem to be particularly appropriate instruments in this regard. → The choice of design elements within instruments is at least as important to promote repowering as the choice of specific instruments.

  15. InterviewStreamliner, a minimalist, free, open source, relational approach to computer-assisted qualitative data analysis software

    NARCIS (Netherlands)

    H.D. Pruijt (Hans)

    2010-01-01

    textabstractInterviewStreamliner is a free, open source, minimalist alternative to complex computer-assisted qualitative data analysis packages. It builds on the flexibility of relational database management technology.

  16. Principal Component Analysis on Chemical Abundances Spaces

    CERN Document Server

    Ting, Y S; Kobayashi, C; De Silva, G M; Bland-Hawthorn, J

    2011-01-01

    [Shortened] In preparation for the HERMES chemical tagging survey of about a million Galactic FGK stars, we estimate the number of independent dimensions of the space defined by the stellar chemical element abundances [X/Fe]. [...] We explore abundances in several environments, including solar neighbourhood thin/thick disk stars, halo metal-poor stars, globular clusters, open clusters, the Large Magellanic Cloud and the Fornax dwarf spheroidal galaxy. [...] We find that, especially at low metallicity, the production of r-process elements is likely to be associated with the production of alpha-elements. This may support the core-collapse supernovae as the r-process site. We also verify the over-abundances of light s-process elements at low metallicity, and find that the relative contribution decreases at higher metallicity, which suggests that this lighter elements primary process may be associated with massive stars. [...] Our analysis reveals two types of core-collapse supernovae: one produces mainly alpha-e...

  17. Observations on the morphology and chemical analysis of medullary granules in chinchilla hair. Research letters

    Energy Technology Data Exchange (ETDEWEB)

    Keogh, H.J. (South African Inst. for Medical Research, Johannesburg); Haylett, T. (Council for Scientific and Industrial Research, Pretoria (South Africa). National Chemical Research Lab.)

    1983-02-01

    The ultrastructure of the medullary granules of white and grey chinchilla hair was investigated by scanning electron microscopy and chemical analysis in an attempt to clarify their structure and function. Atomic absorption spectroscopy and amino acid analysis showed them to be composed of melanin. The sample preparation for scanning electron microscopy is discussed. The metal content was qualitatively established by X-ray fluorescence spectrometry and quantitatively determined on a Varian Techtron model AAs atomic absorption spectrophotometer. Amino acid analysis of the granule, was carried out on a Beckman 121 amino acid analyser. Information is provided on the amino acid composition of the medullary granules as well as its metal content.

  18. Observations on the morphology and chemical analysis of medullary granules in chinchilla hair

    International Nuclear Information System (INIS)

    The ultrastructure of the medullary granules of white and grey chinchilla hair was investigated by scanning electron microscopy and chemical analysis in an attempt to clarify their structure and function. Atomic absorption spectroscopy and amino acid analysis showed them to be composed of melanin. The sample preparation for scanning electron microscopy is discussed. The metal content was qualitatively established by X-ray fluorescence spectrometry and quantitatively determined on a Varian Techtron model AAs atomic absorption spectrophotometer. Amino acid analysis of the granule, was carried out on a Beckman 121 amino acid analyser. Information is provided on the amino acid composition of the medullary granules as well as its metal content

  19. Advanced development in chemical analysis of Cordyceps.

    Science.gov (United States)

    Zhao, J; Xie, J; Wang, L Y; Li, S P

    2014-01-01

    Cordyceps sinensis, also called DongChongXiaCao (winter worm summer grass) in Chinese, is a well-known and valued traditional Chinese medicine. In 2006, we wrote a review for discussing the markers and analytical methods in quality control of Cordyceps (J. Pharm. Biomed. Anal. 41 (2006) 1571-1584). Since then this review has been cited by others for more than 60 times, which suggested that scientists have great interest in this special herbal material. Actually, the number of publications related to Cordyceps after 2006 is about 2-fold of that in two decades before 2006 according to the data from Web of Science. Therefore, it is necessary to review and discuss the advanced development in chemical analysis of Cordyceps since then. PMID:23688494

  20. Primer izpeljave analize besedila v kvalitativni raziskavi = An Example of Performing a Text Analysis in a Qualitative Research

    OpenAIRE

    Vasja Roblek

    2009-01-01

    The article presents an example of a text analysis and interpretation based on a qualitative research. In the first part we focus on the theoretical definition of analytical tools and characteristics of the text analysis and interpretation within the frame of qualitative research. We continue with presenting an option of analysing and interpreting acquired data by using the analytical tool thematic network. The presented option is based on the results we obtained by half-structured interviews...

  1. Qualitative and quantitative CT analysis of acute pulmonary failure; Qualitative und quantitative CT-Analysen beim akuten Lungenversagen

    Energy Technology Data Exchange (ETDEWEB)

    Reske, A.W. [Universitaetsklinikum Carl Gustav Carus, Dresden (Germany). Klinik und Poliklinik fuer Anaesthesiologie und Intensivtherapie; Seiwerts, M. [Universitaetsklinikum Leipzig AoeR, Klinik fuer Diagnostische und Interventionelle Radiologie, Leipzig (Germany)

    2009-08-15

    Since its first application in patients with acute lung injury 25 years ago, computed tomography (CT) has significantly influenced the understanding of the pathophysiology, diagnosis and management of acute lung injury and has become an important diagnostic modality for these patients. The aim of this article is to review important disease-specific aspects of CT acquisition and qualitative and quantitative analyses of CT data. Morphological changes seen on CT and associated functional alterations are discussed. Methods used for the quantification of lung aeration are described and their limitations outlined. (orig.) [German] Die ersten computertomographischen Beschreibungen der Lungenmorphologie bei Patienten mit akutem Lungenversagen erschienen vor inzwischen 25 Jahren. Die Computertomographie (CT) hat das Verstaendnis pathophysiologischer Prozesse und therapeutischer Interventionen beim akuten Lungenversagen massgeblich beeinflusst und sich von der Reservebildgebungsoption zum zentralen diagnostischen Baustein moderner Therapiekonzepte entwickelt. Der vorliegende Artikel soll einen Ueberblick ueber Indikationsstellung, Durchfuehrung und Auswertung der CT bei Patienten mit akutem Lungenversagen geben. In der CT erfasste Veraenderungen der Morphologie werden pathophysiologischen Eigenschaften der Lungenfunktion zugeordnet. Abschliessend wird dargestellt, wie die CT zur Quantifizierung erkrankungs- oder beatmungsassoziierter Veraenderungen der Lungenbelueftung eingesetzt werden kann. (orig.)

  2. Exploring Factors of Successful Tendering Practices using Qualitative Comparative Analysis (QCA): The Study of Organizational Repetitions

    DEFF Research Database (Denmark)

    Bekdik, Baris; Thuesen, Christian

    2015-01-01

    to holistically describe the combination of conditions resulting in particular tender results. As a result of the analysis, a solution set is found explaining the path leading to project contract winning; previous work experience between client and general contractor together with either previous work experience...... combinations of factors leading to particular results of tendering practices. Empirical material collected through data mining in previously completed project records (quantitative data) is supported by data obtained from project managers of a general contractor company (qualitative data) in order...

  3. Cartoons and the Egyptian Transition: A Qualitative Analysis of Egyptian Newspapers

    Directory of Open Access Journals (Sweden)

    Sara S. Elmaghraby

    2014-07-01

    Full Text Available Since the Egyptian revolution of 25 January, cartoonists have depicted the transition taking place in this country in several ways. This study aims to analyze the cartoons drawn about this transition period in Egypt in seven different Egyptian newspapers. This is done through a qualitative analysis of 80 cartoons published between 28 June and 4 July 2013, as this period saw the ousting of elected president Mohamed Morsi by the military general Abdel Fattah Al-Sisi. The study observes the different depiction of various topics, actors and visual frames used by the seven newspapers during the analyzed period, in accordance with their particular viewpoint of the transition in Egypt.

  4. ANSI/ASHRAE/IES Standard 90.1-2013 Determination of Energy Savings: Qualitative Analysis

    Energy Technology Data Exchange (ETDEWEB)

    Halverson, Mark A.; Rosenberg, Michael I.; Hart, Philip R.; Richman, Eric E.; Athalye, Rahul A.; Winiarski, David W.

    2014-09-04

    This report provides a final qualitative analysis of all addenda to ANSI/ASHRAE/IES Standard 90.1-2010 (referred to as Standard 90.1-2010 or 2010 edition) that were included in ANSI/ASHRAE/IES Standard 90.1-2013 (referred to as Standard 90.1-2013 or 2013 edition). All addenda in creating Standard 90.1-2013 were evaluated for their projected impact on energy efficiency. Each addendum was characterized as having a positive, neutral, or negative impact on overall building energy efficiency.

  5. Interaction between international trade and economic growth: evidence from qualitative comparative analysis

    Directory of Open Access Journals (Sweden)

    Asli Seda Bilman

    2014-12-01

    Full Text Available The relationship between international trade and growth is one of the most popular debates in international economics literature. Although there are numerous theoretical approaches and empirical studies about the issue, the direction of the causality and the magnitude of the interaction still remain unclear. In this study, qualitative comparative analysis introduced by Ragin (1987 is applied, different from the previous empirical studies on the topic. The results present the conditions for growth in the country groups involved. The findings imply that trade policy is still of great importance in terms of stimulating growth in developing countries, while it has little importance in developed countries.

  6. Qualitative and quantitative methods for human factor analysis and assessment in NPP. Investigations and results

    International Nuclear Information System (INIS)

    We consider here two basic groups of methods for analysis and assessment of the human factor in the NPP area and give some results from performed analyses as well. The human factor is the human interaction with the design equipment, with the working environment and takes into account the human capabilities and limits. In the frame of the qualitative methods for analysis of the human factor are considered concepts and structural methods for classifying of the information, connected with the human factor. Emphasize is given to the HPES method for human factor analysis in NPP. Methods for quantitative assessment of the human reliability are considered. These methods allow assigning of probabilities to the elements of the already structured information about human performance. This part includes overview of classical methods for human reliability assessment (HRA, THERP), and methods taking into account specific information about human capabilities and limits and about the man-machine interface (CHR, HEART, ATHEANA). Quantitative and qualitative results concerning human factor influence in the initiating events occurrences in the Kozloduy NPP are presented. (authors)

  7. Nonlinear Model and Qualitative Analysis for Coupled Axial/Torsional Vibrations of Drill String

    Directory of Open Access Journals (Sweden)

    Fushen Ren

    2016-01-01

    Full Text Available A nonlinear dynamics model and qualitative analysis are presented to study the key effective factors for coupled axial/torsional vibrations of a drill string, which is described as a simplified, equivalent, flexible shell under axial rotation. Here, after dimensionless processing, the mathematical models are obtained accounting for the coupling of axial and torsional vibrations using the nonlinear dynamics qualitative method, in which excitation loads and boundary conditions of the drill string are simplified to a rotating, flexible shell. The analysis of dynamics responses is performed by means of the Runge-Kutta-Fehlberg method, in which the rules that govern the changing of the torsional and axial excitation are revealed, and suggestions for engineering applications are also given. The simulation analysis shows that when the drill string is in a lower-speed rotation zone, the torsional excitation is the key factor in the coupling vibration, and increasing the torsional stress of the drill string more easily leads to the coupling vibration; however, when the drill string is in a higher-speed rotating zone, the axial excitation is a key factor in the coupling vibration, and the axial stress in a particular interval more easily leads to the coupling vibration of the drill string.

  8. Twenty-Year Survey of Scientific Literacy and Attitudes Toward Science_Qualitative Analysis

    Science.gov (United States)

    Antonellis, Jessie; Impey, C.; Johnson, E.; King, C.; CATS

    2009-01-01

    This poster presents findings from the qualitative analysis of data from a long-term investigation into the science literacy and attitudes toward science of University of Arizona non-science major undergraduates (see Impey et al., this meeting). The qualitative analysis centered on student responses to four open-ended questions probing science process and content knowledge, derived from measures of adults’ science literacy as defined and assessed by the National Science Foundation in its biannual Science and Engineering Indicators reports to the National Science Board. The four questions asked students to briefly describe (1) DNA; (2) radiation; (3) software; and (4) the nature of scientific study. Data was coded thematically both for students’ depth of understanding of each concept as well as for common and uncommon beliefs and reasoning difficulties. Analysis included investigations into changes in students’ understandings of the different concepts over time. The data suggest trends in students’ conceptions and influences on those conceptions. In addition, the results of this study are being used to develop a survey instrument designed specifically for use with Astro 101 students to evaluate the effectiveness of instruction on their scientific attitudes and beliefs as a Collaboration of Astronomy Teaching Scholars (CATS) research project. We acknowledge the NSF for funding under Award No. 0715517, a CCLI Phase III Grant for the Collaboration of Astronomy Teaching Scholars (CATS).

  9. FURAX: assistance tools for the qualitative and quantitative analysis of systems reliability

    International Nuclear Information System (INIS)

    FURAX is a set of tools for the qualitative and quantitative safety analysis of systems functioning. It is particularly well adapted to the study of networks (fluids, electrical..), i.e. systems in which importance is functionally given to a flux. The analysis is based on modeling which privileges these fluxes (skeleton representation of the system for a network, functional diagram for a non single-flux system) and on the representation of components support systems. Qualitative analyses are based on the research for possible flux ways and on the technical domain knowledge. The results obtained correspond to a simplified failure mode analysis, to fault-trees relative to the events expected by the user and to minimum sections. The possible calculations on these models are: tree calculations, Markov diagram calculations of the system reliability, and probabilistic calculation of a section viewed as a tree, as a well-ordered sequence of failures, or as the absorbing state of a Markov diagram. (J.S.). 6 refs

  10. MARIKA - A model revision system using qualitative analysis of simulations. [of human orientation system

    Science.gov (United States)

    Groleau, Nicolas; Frainier, Richard; Colombano, Silvano; Hazelton, Lyman; Szolovits, Peter

    1993-01-01

    This paper describes portions of a novel system called MARIKA (Model Analysis and Revision of Implicit Key Assumptions) to automatically revise a model of the normal human orientation system. The revision is based on analysis of discrepancies between experimental results and computer simulations. The discrepancies are calculated from qualitative analysis of quantitative simulations. The experimental and simulated time series are first discretized in time segments. Each segment is then approximated by linear combinations of simple shapes. The domain theory and knowledge are represented as a constraint network. Incompatibilities detected during constraint propagation within the network yield both parameter and structural model alterations. Interestingly, MARIKA diagnosed a data set from the Massachusetts Eye and Ear Infirmary Vestibular Laboratory as abnormal though the data was tagged as normal. Published results from other laboratories confirmed the finding. These encouraging results could lead to a useful clinical vestibular tool and to a scientific discovery system for space vestibular adaptation.

  11. A novel method for qualitative analysis of edible oil oxidation using an electronic nose.

    Science.gov (United States)

    Xu, Lirong; Yu, Xiuzhu; Liu, Lei; Zhang, Rui

    2016-07-01

    An electronic nose (E-nose) was used for rapid assessment of the degree of oxidation in edible oils. Peroxide and acid values of edible oil samples were analyzed using data obtained by the American Oil Chemists' Society (AOCS) Official Method for reference. Qualitative discrimination between non-oxidized and oxidized oils was conducted using the E-nose technique developed in combination with cluster analysis (CA), principal component analysis (PCA), and linear discriminant analysis (LDA). The results from CA, PCA and LDA indicated that the E-nose technique could be used for differentiation of non-oxidized and oxidized oils. LDA produced slightly better results than CA and PCA. The proposed approach can be used as an alternative to AOCS Official Method as an innovative tool for rapid detection of edible oil oxidation. PMID:26920289

  12. Qualitative Analysis on Void Fraction of TRIGA 2000 Reactor in Bandung

    International Nuclear Information System (INIS)

    A qualitative analysis concerning the void fraction of TRIGA 2000 reactor has been done. That analysis is performed by studying the void phenomenon theoretically, followed by studying the cooling system performance, measuring the fuel element and cooling temperature, and visually observing the operation of reactor system. TRIGA 2000 reactor is a TRIGA Mark II reactor, which originally has 1000 kW thermal power, and then is upgraded up to 2000 kW. During reactor operation, voids are observed beginning at 1000 kW power and increased at higher power. The are several probability on where the voids come from. They might be caused by boiling process, water radiolysis, pump leakage, or cavitation. From the analysis performed, the voids might be caused by nucleate boiling, which do not affect the safety of reactor operation at certain margin. (author)

  13. Chemical abundance analysis of 19 barium stars

    Science.gov (United States)

    Yang, Guo-Chao; Liang, Yan-Chun; Spite, Monique; Chen, Yu-Qin; Zhao, Gang; Zhang, Bo; Liu, Guo-Qing; Liu, Yu-Juan; Liu, Nian; Deng, Li-Cai; Spite, Francois; Hill, Vanessa; Zhang, Cai-Xia

    2016-01-01

    We aim at deriving accurate atmospheric parameters and chemical abundances of 19 barium (Ba) stars, including both strong and mild Ba stars, based on the high signal-to-noise ratio and high resolution Echelle spectra obtained from the 2.16 m telescope at Xinglong station of National Astronomical Observatories, Chinese Academy of Sciences. The chemical abundances of the sample stars were obtained from an LTE, plane-parallel and line-blanketed atmospheric model by inputting the atmospheric parameters (effective temperatures Teff, surface gravities log g, metallicity [Fe/H] and microturbulence velocity ξt) and equivalent widths of stellar absorption lines. These samples of Ba stars are giants as indicated by atmospheric parameters, metallicities and kinematic analysis about UVW velocity. Chemical abundances of 17 elements were obtained for these Ba stars. Their Na, Al, α- and iron-peak elements (O, Na, Mg, Al, Si, Ca, Sc, Ti, V, Cr, Mn, Ni) are similar to the solar abundances. Our samples of Ba stars show obvious overabundances of neutron-capture (n-capture) process elements relative to the Sun. Their median abundances of [Ba/Fe], [La/Fe] and [Eu/Fe] are 0.54, 0.65 and 0.40, respectively. The Y I and Zr I abundances are lower than Ba, La and Eu, but higher than the α- and iron-peak elements for the strong Ba stars and similar to the iron-peak elements for the mild stars. There exists a positive correlation between Ba intensity and [Ba/Fe]. For the n-capture elements (Y, Zr, Ba, La), there is an anti-correlation between their [X/Fe] and [Fe/H]. We identify nine of our sample stars as strong Ba stars with [Ba/Fe] >0.6 where seven of them have Ba intensity Ba=2-5, one has Ba=1.5 and another one has Ba=1.0. The remaining ten stars are classified as mild Ba stars with 0.17<[Ba/Fe] <0.54.

  14. Spectroscopic Chemical Analysis Methods and Apparatus

    Science.gov (United States)

    Hug, William F.; Reid, Ray D.

    2012-01-01

    This invention relates to non-contact spectroscopic methods and apparatus for performing chemical analysis and the ideal wavelengths and sources needed for this analysis. It employs deep ultraviolet (200- to 300-nm spectral range) electron-beam-pumped wide bandgap semiconductor lasers, incoherent wide bandgap semiconductor lightemitting devices, and hollow cathode metal ion lasers. Three achieved goals for this innovation are to reduce the size (under 20 L), reduce the weight [under 100 lb (.45 kg)], and reduce the power consumption (under 100 W). This method can be used in microscope or macroscope to provide measurement of Raman and/or native fluorescence emission spectra either by point-by-point measurement, or by global imaging of emissions within specific ultraviolet spectral bands. In other embodiments, the method can be used in analytical instruments such as capillary electrophoresis, capillary electro-chromatography, high-performance liquid chromatography, flow cytometry, and related instruments for detection and identification of unknown analytes using a combination of native fluorescence and/or Raman spectroscopic methods. This design provides an electron-beampumped semiconductor radiation-producing method, or source, that can emit at a wavelength (or wavelengths) below 300 nm, e.g. in the deep ultraviolet between about 200 and 300 nm, and more preferably less than 260 nm. In some variations, the method is to produce incoherent radiation, while in other implementations it produces laser radiation. In some variations, this object is achieved by using an AlGaN emission medium, while in other implementations a diamond emission medium may be used. This instrument irradiates a sample with deep UV radiation, and then uses an improved filter for separating wavelengths to be detected. This provides a multi-stage analysis of the sample. To avoid the difficulties related to producing deep UV semiconductor sources, a pumping approach has been developed that uses

  15. Social Network Analysis and Qualitative Interviews for Assessing Geographic Characteristics of Tourism Business Networks

    Science.gov (United States)

    Luthe, Tobias; Wyss, Romano; Tørnblad, Silje H.; Evers, Yvette; Curran, Marina Martin; Williams, Richard J.; Berlow, Eric L.

    2016-01-01

    This study integrates quantitative social network analysis (SNA) and qualitative interviews for understanding tourism business links in isolated communities through analysing spatial characteristics. Two case studies are used, the Surselva-Gotthard region in the Swiss Alps and Longyearbyen in the Arctic archipelago of Svalbard, to test the spatial characteristics of physical proximity, isolation, and smallness for understanding tourism business links. In the larger Surselva-Gotthard region, we found a strong relationship between geographic separation of the three communities on compartmentalization of the collaboration network. A small set of businesses played a central role in steering collaborative decisions for this community, while a group of structurally ‘peripheral’ actors were less influential. By contrast, the business community in Svalbard showed compartmentalization that was independent of geographic distance between actors. Within towns of similar size and governance scale, Svalbard is more compartmentalized, and those compartments are not driven by geographic separation of the collaboration clusters. This compartmentalization in Svalbard was reflected in a lower density of formal business collaboration ties compared to the communities of the Alps. We infer that the difference is due to Svalbard having higher cultural diversity and population turnover than the Alps communities. We propose that integrating quantitative network analysis from simple surveys with qualitative interviews targeted from the network results is an efficient general approach to identify regionally specific constraints and opportunities for effective governance. PMID:27258007

  16. Social Network Analysis and Qualitative Interviews for Assessing Geographic Characteristics of Tourism Business Networks.

    Science.gov (United States)

    Kelman, Ilan; Luthe, Tobias; Wyss, Romano; Tørnblad, Silje H; Evers, Yvette; Curran, Marina Martin; Williams, Richard J; Berlow, Eric L

    2016-01-01

    This study integrates quantitative social network analysis (SNA) and qualitative interviews for understanding tourism business links in isolated communities through analysing spatial characteristics. Two case studies are used, the Surselva-Gotthard region in the Swiss Alps and Longyearbyen in the Arctic archipelago of Svalbard, to test the spatial characteristics of physical proximity, isolation, and smallness for understanding tourism business links. In the larger Surselva-Gotthard region, we found a strong relationship between geographic separation of the three communities on compartmentalization of the collaboration network. A small set of businesses played a central role in steering collaborative decisions for this community, while a group of structurally 'peripheral' actors were less influential. By contrast, the business community in Svalbard showed compartmentalization that was independent of geographic distance between actors. Within towns of similar size and governance scale, Svalbard is more compartmentalized, and those compartments are not driven by geographic separation of the collaboration clusters. This compartmentalization in Svalbard was reflected in a lower density of formal business collaboration ties compared to the communities of the Alps. We infer that the difference is due to Svalbard having higher cultural diversity and population turnover than the Alps communities. We propose that integrating quantitative network analysis from simple surveys with qualitative interviews targeted from the network results is an efficient general approach to identify regionally specific constraints and opportunities for effective governance. PMID:27258007

  17. Social Network Analysis and Qualitative Interviews for Assessing Geographic Characteristics of Tourism Business Networks.

    Directory of Open Access Journals (Sweden)

    Ilan Kelman

    Full Text Available This study integrates quantitative social network analysis (SNA and qualitative interviews for understanding tourism business links in isolated communities through analysing spatial characteristics. Two case studies are used, the Surselva-Gotthard region in the Swiss Alps and Longyearbyen in the Arctic archipelago of Svalbard, to test the spatial characteristics of physical proximity, isolation, and smallness for understanding tourism business links. In the larger Surselva-Gotthard region, we found a strong relationship between geographic separation of the three communities on compartmentalization of the collaboration network. A small set of businesses played a central role in steering collaborative decisions for this community, while a group of structurally 'peripheral' actors were less influential. By contrast, the business community in Svalbard showed compartmentalization that was independent of geographic distance between actors. Within towns of similar size and governance scale, Svalbard is more compartmentalized, and those compartments are not driven by geographic separation of the collaboration clusters. This compartmentalization in Svalbard was reflected in a lower density of formal business collaboration ties compared to the communities of the Alps. We infer that the difference is due to Svalbard having higher cultural diversity and population turnover than the Alps communities. We propose that integrating quantitative network analysis from simple surveys with qualitative interviews targeted from the network results is an efficient general approach to identify regionally specific constraints and opportunities for effective governance.

  18. Developing a framework for qualitative engineering: Research in design and analysis of complex structural systems

    Science.gov (United States)

    Franck, Bruno M.

    1990-01-01

    The research is focused on automating the evaluation of complex structural systems, whether for the design of a new system or the analysis of an existing one, by developing new structural analysis techniques based on qualitative reasoning. The problem is to identify and better understand: (1) the requirements for the automation of design, and (2) the qualitative reasoning associated with the conceptual development of a complex system. The long-term objective is to develop an integrated design-risk assessment environment for the evaluation of complex structural systems. The scope of this short presentation is to describe the design and cognition components of the research. Design has received special attention in cognitive science because it is now identified as a problem solving activity that is different from other information processing tasks (1). Before an attempt can be made to automate design, a thorough understanding of the underlying design theory and methodology is needed, since the design process is, in many cases, multi-disciplinary, complex in size and motivation, and uses various reasoning processes involving different kinds of knowledge in ways which vary from one context to another. The objective is to unify all the various types of knowledge under one framework of cognition. This presentation focuses on the cognitive science framework that we are using to represent the knowledge aspects associated with the human mind's abstraction abilities and how we apply it to the engineering knowledge and engineering reasoning in design.

  19. SWOT analysis for safer carriage of bulk liquid chemicals in tankers.

    Science.gov (United States)

    Arslan, Ozcan; Er, Ismail Deha

    2008-06-15

    The application of strengths, weaknesses, opportunities and threats (SWOT) analysis to formulation of strategy concerned with the safe carriage of bulk liquid chemicals in maritime tankers was examined in this study. A qualitative investigation using SWOT analysis has been implemented successfully for ships that are designed to carry liquid chemicals in bulk. The originality of this study lies in the use of SWOT analysis as a management tool to formulate strategic action plans for ship management companies, ship masters and officers for the carriage of dangerous goods in bulk. With this transportation-based SWOT analysis, efforts were made to explore the ways and means of converting possible threats into opportunities, and changing weaknesses into strengths; and strategic plans of action were developed for safer tanker operation. PMID:18093731

  20. Optimal climate policy is a utopia. From quantitative to qualitative cost-benefit analysis

    Energy Technology Data Exchange (ETDEWEB)

    Van den Bergh, Jeroen C.J.M. [Department of Spatial Economics, Faculty of Economics and Business Administration, and Institute for Environmental Studies, Free University, De Boelelaan 1105, 1081 HV, Amsterdam (Netherlands)

    2004-04-20

    The dominance of quantitative cost-benefit analysis (CBA) and optimality concepts in the economic analysis of climate policy is criticised. Among others, it is argued to be based in a misplaced interpretation of policy for a complex climate-economy system as being analogous to individual inter-temporal welfare optimisation. The transfer of quantitative CBA and optimality concepts reflects an overly ambitious approach that does more harm than good. An alternative approach is to focus the attention on extreme events, structural change and complexity. It is argued that a qualitative rather than a quantitative CBA that takes account of these aspects can support the adoption of a minimax regret approach or precautionary principle in climate policy. This means: implement stringent GHG reduction policies as soon as possible.

  1. Qualitative Analysis of Collagen Fibers in Oral Submucous Fibrosis using Picrosirius Red Stain and Polarising Microscope

    Science.gov (United States)

    Sekaran, Preethi; Narasimhan, Malathi

    2016-01-01

    Introduction Oral Submucous Fibrosis (OSMF) is an oral potentially malignant condition caused predominantly by areca nut chewing. Early recognition with accurate staging of the disease and appropriate treatment planning is of utmost importance to prevent the malignant transformation and to improve the quality of life of the patient. Picrosirius red stain is specific for collagen and enhances its birefringence under polarising light producing different colours in different stages of the disease. Aim To compare the clinical and functional staging with histopathologic staging methods used to assess the severity of OSMF and to perform a qualitative analysis of the collagen fibres in various histopathologic stages of OSMF using picrosirius red stain and polarising microscope. Materials and Methods It is a retrospective study done on archival samples. The study sample included a total of 30 cases which was divided into two groups. Group I comprised of 20 OSMF samples and Group II comprised of 10 normal tissue samples. Clinical, functional and histopathological staging was performed for all OSMF samples. Comparative analysis between clinical and functional stages with the histopathological staging was done using chi square test. Picrosirius red- stained sections of OSMF were analysed using polarising microscopy to evaluate the qualitative changes in the collagen fibers. Statistical Analysis Used Descriptive data which includes frequency and percentages were calculated for each group. Categorical data were analysed by chi-square test. A p-value of 0.05 or less was considered statistically significant. Results Comparative analysis between clinical and functional stages with the histopathological staging revealed a significant correlation (p clinical staging. Production of characteristic polarising colours by various stages of picrosirius red stained sections of OSMF substantiates the use of picrosirius red stain and polarising microscope as a tool in assessing the severity

  2. An Analysis on Qualitative Bankruptcy Prediction Rules using Ant-Miner

    Directory of Open Access Journals (Sweden)

    A. Martin

    2013-12-01

    Full Text Available Qualitative bankruptcy prediction rules represent experts' problem-solving knowledge to predict qualitative bankruptcy. The objective of this research is predicting qualitative bankruptcy using ant-miner algorithm. Qualitative data are subjective and more difficult to measure. This approach uses qualitative risk factors which include fourteen internal risk factors and sixty eight external risk factors associated with it. By using these factors qualitative prediction rules are generated using ant-miner algorithm and the influence of these factors in bankruptcy is also analyzed. Ant-Miner algorithm is a application of ant colony optimization and data mining concepts. Qualitative rules generated by ant miner algorithm are validated using measure of agreement. These prediction rules yields better accuracy with lesser number of terms than previously applied qualitative bankruptcy prediction methodologies.

  3. Qualitative Analysis after Instrumentation Using Manual Stainless Steel and Rotary Nickel Titanium Instruments

    Directory of Open Access Journals (Sweden)

    Key Fabiano Souza PEREIRA

    2007-09-01

    Full Text Available Objective: To compare qualitatively the instrumentation (areastouched by the endodontic instruments with manual stainless steeland rotary nickel titanium files.Method: 32 mesiobuccal roots of maxillary molars with a singlecanal and a single apical foramen were examined in vitro. Thecanals were instrumented by the crown-down technique using Ktypefiles and taper .04 Profile files, obtaining a surgical diametercorresponding to a #30 instrument. Next, impression material wasinjected into the root canals. After material setting, the teeth weredecalcified to obtain canal impression. To evaluate the quality ofroot canal instrumentation, the images of the impressions weretransmitted to a 29-inch tv using a video camera coupled to anoperative microscope at ×20 magnification and moderate lightintensity. The examined surfaces were classified as EXCELLENT(smooth surfaces indicating that the walls were touched by theinstrument, GOOD (surfaces with irregularities and REGULAR(surfaces with irregularities, presence of anatomic complexities,like isthmuses, accessory canals, delta, etc.Results: The analysis of the root thirds and surfaces showed apredominance of the REGULAR classification of instrumentationfor both types of instruments. The worst results were found on thepalatal surface and apical third.Conclusion: There was no statistically significant difference(p>0.05 between the manual stainless steel and rotary nickeltitanium instrumentation techniques when the impressions of theroot thirds and surfaces were analyzed qualitatively.

  4. Full-Range Public Health Leadership, Part 2: Qualitative Analysis and Synthesis

    Science.gov (United States)

    Carlton, Erik L.; Holsinger, James W.; Riddell, Martha C.; Bush, Heather

    2015-01-01

    Public health leadership is an important topic in the era of U.S. health reform, population health innovation, and health system transformation. This study utilized the full-range leadership model in order to examine the public health leadership. We sought to understand local public health leadership from the perspective of local health department leaders and those who work with and for them. Public health leadership was explored through interviews and focus groups with directors (n = 4) and staff (n = 33) from local health departments. Qualitative analytic methods included reflexive journals, code-recode procedures, and member checking, with analysis facilitated by Atlas.ti v.6.0. Qualitative results supported and expanded upon previously reported quantitative findings. Leading by example and providing individual consideration to followers were found to be more important than other leader factors, such as intellectual stimulation, inspirational motivation, or idealized attributes of leaders. Having a clear and competent vision of public health, being able to work collaboratively with other community agencies, and addressing the current challenges to public health with creativity and innovation were also important findings. Idealized leadership behaviors and individual consideration should be the focus of student and professional development. Models that incorporate contextual considerations, such as the situational leadership model, could be utilized to ensure that optimal individual consideration is given to followers. PMID:26217654

  5. Extended-Release Naltrexone: A Qualitative Analysis of Barriers to Routine Use.

    Science.gov (United States)

    Alanis-Hirsch, Kelly; Croff, Raina; Ford, James H; Johnson, Kim; Chalk, Mady; Schmidt, Laura; McCarty, Dennis

    2016-03-01

    The Medication Research Partnership (a national health plan and nine addiction treatment centers contracted with the health plan) sought to facilitate the adoption of pharmacotherapy for alcohol and opioid use disorders. Qualitative analysis of interviews with treatment center change leaders, individuals working for the manufacturer and its technical assistance contractor, and health plan managers extracted details on the processes used to order, store, bill for, and administer extended-release naltrexone. Qualitative themes were categorized using domains from the Consolidated Framework for Implementation Research (intervention characteristics, outer setting, inner setting, and provider characteristics). Characteristics of XR-NTX that inhibited use included the complexity of ordering and using the medication; cost was also a barrier. Outer setting barriers reflected patient needs and external health plan policies on formulary coverage, benefit management, and reimbursement. Program structures, the lack of physician linkages, a culture resistant to the use of medication, and unease with change were inner setting elements that limited use of XR-NTX. Patient stereotypes and a lack of knowledge about XR-NTX affected practitioner willingness to treat patients and prescribe XR-NTX. The Consolidated Framework for Implementation Research provided a useful lens to understand and interpret the processes affecting access to XR-NTX. PMID:26654934

  6. Full-Range Public Health Leadership, Part 2: Qualitative Analysis and Synthesis

    Directory of Open Access Journals (Sweden)

    Erik L. Carlton

    2015-07-01

    Full Text Available Public health leadership is an important topic in the era of U. S. health reform, population health innovation, and health system transformation. This study utilized the full-range leadership model in order to examine public health leadership. We sought to understand local public health leadership from the perspective of local health department leaders and those who work with and for them. Public health leadership was explored through interviews and focus groups with directors (n=4 and staff (n=33 from local health departments. Qualitative analytic methods included reflexive journals, code-recode procedures, and member checking, with analysis facilitated by Atlas.ti v.6.0. Qualitative results supported and expanded upon previously reported quantitative findings. Leading by example and providing individual consideration to followers were found to be more important than other leader factors such as intellectual stimulation, inspirational motivation, or idealized attributes of leaders. Having a clear and competent vision of public health, being able to work collaboratively with other community agencies, and addressing the current challenges to public health with creativity and innovation were also important findings. Idealized leadership behaviors and individual consideration should be the focus of student and professional development. Models that incorporate contextual considerations, such as the situational leadership model, should be utilized and instruction in basic interpersonal skills may prove useful. The development of a detailed leadership assessment and development process for public health practitioners is indicated.

  7. Full-Range Public Health Leadership, Part 2: Qualitative Analysis and Synthesis.

    Science.gov (United States)

    Carlton, Erik L; Holsinger, James W; Riddell, Martha C; Bush, Heather

    2015-01-01

    Public health leadership is an important topic in the era of U.S. health reform, population health innovation, and health system transformation. This study utilized the full-range leadership model in order to examine the public health leadership. We sought to understand local public health leadership from the perspective of local health department leaders and those who work with and for them. Public health leadership was explored through interviews and focus groups with directors (n = 4) and staff (n = 33) from local health departments. Qualitative analytic methods included reflexive journals, code-recode procedures, and member checking, with analysis facilitated by Atlas.ti v.6.0. Qualitative results supported and expanded upon previously reported quantitative findings. Leading by example and providing individual consideration to followers were found to be more important than other leader factors, such as intellectual stimulation, inspirational motivation, or idealized attributes of leaders. Having a clear and competent vision of public health, being able to work collaboratively with other community agencies, and addressing the current challenges to public health with creativity and innovation were also important findings. Idealized leadership behaviors and individual consideration should be the focus of student and professional development. Models that incorporate contextual considerations, such as the situational leadership model, could be utilized to ensure that optimal individual consideration is given to followers. PMID:26217654

  8. The experience of puberty in Iranian adolescent girls: a qualitative content analysis

    Directory of Open Access Journals (Sweden)

    Golchin Nayereh Azam

    2012-08-01

    Full Text Available Abstract Background Adolescence is an important stage in human life span. Physiologic changes associated with puberty manifest themselves in often complex and bizarre ways to which girls show different reactions. This study aims to explore to puberty experiences in adolescent girls who live in the city of Sari in Iran. Methods The present study is a qualitative study of content analysis. Sampling took place in the city of Sari, Iran and was objective focused in accordance with qualitative studies. Participants were 38 girls of 12–20 years old who had at least experienced 3 menstrual cycles. Data was collected by means of focus group and in-depth interviews. Results As follows, Seven main themes were extracted from the interviews are follows: Menarche as the most unpleasant event in puberty, getting nervous about and ashamed of bodily changes, psychological changes, discordance with parents, sexual orientation and the need for education on this issue, scholastic dysfunction and religious considerations. Conclusion The results showed that for the majority of the participants puberty was an unpleasant experience. Most of them were in need of education on how to go about the issues surrounding puberty. The society, families and of course the adolescents themselves are responsible to work together in order to create an atmosphere in which correct information on puberty and the associated issues are readily accessible.

  9. A philosophical analysis of the general methodology of qualitative research: a critical rationalist perspective.

    Science.gov (United States)

    Rudnick, Abraham

    2014-09-01

    Philosophical discussion of the general methodology of qualitative research, such as that used in some health research, has been inductivist or relativist to date, ignoring critical rationalism as a philosophical approach with which to discuss the general methodology of qualitative research. This paper presents a discussion of the general methodology of qualitative research from a critical rationalist perspective (inspired by Popper), using as an example mental health research. The widespread endorsement of induction in qualitative research is positivist and is suspect, if not false, particularly in relation to the context of justification (or rather theory testing) as compared to the context of discovery (or rather theory generation). Relativism is riddled with philosophical weaknesses and hence it is suspect if not false too. Theory testing is compatible with qualitative research, contrary to much writing about and in qualitative research, as theory testing involves learning from trial and error, which is part of qualitative research, and which may be the form of learning most conducive to generalization. Generalization involves comparison, which is a fundamental methodological requirement of any type of research (qualitative or other); hence the traditional grounding of quantitative and experimental research in generalization. Comparison--rather than generalization--is necessary for, and hence compatible with, qualitative research; hence, the common opposition to generalization in qualitative research is misdirected, disregarding whether this opposition's claims are true or false. In conclusion, qualitative research, similar to quantitative and experimental research, assumes comparison as a general methodological requirement, which is necessary for health research. PMID:22592885

  10. Rotation parameters and shapes of 19 asteroids. Qualitative analysis and interpretation of data

    Science.gov (United States)

    Tungalag, N.; Shevchenko, V. G.; Lupishko, D. F.

    2003-10-01

    Using the combined method (amplitude-magnitude method plus the epoch method), we determined pole coordinates, sidereal rotation periods, senses of rotation and axial ratios of threeaxial ellipsoid figures for asteroids 158 Koronis, 167 Urda, 208 Lacrimosa, 211 Isolda, 263 Dresda, 268 Adorea, 277 Elvira, 311 Claudia, 321 Florentina, 344 Desiderata, 347 Pariana, 369 Aeria, 462 Eriphyla, 480 Hansa, 534 Nassovia, 631 Philippina, 720 Bohlina, 1223 Neckar, and 4954 Eric. For nine of them the determination was obtained for the first time. Using all available data on pole coordinates, sense of rotation and parameters of asteroid shapes, the qualitative analysis and interpretation of data on axis orientation, retrograde rotation and semi-axial ratios of asteroids were carried out.

  11. Qualitative and structural analysis of the managerial competency of future physical education and sport specialists

    Directory of Open Access Journals (Sweden)

    Dubrevskiy Y.M.

    2014-04-01

    Full Text Available Purpose: identifying theoretical and practical communication management competence in vocational training of future specialists of physical education and sport. Material: analysis of 220 literary sources of psycho-pedagogical nature, sports theory, control theory, methods of physical education, which cover the administrative aspect of modern specialist training. Results: the need to form a managerial competency in the process of future specialists in education and sport preparation with regard to its qualitative and structural characteristics was established in the research. Conclusions: there is an evidence that the meaningful impact on the development of managerial competency takes place successfully under conditions of personal socialization in the communicative environment; orientation towards systematic assimilation of knowledge about the phenomenon of management, focus on the effective implementation of activities; development of professional and individual characteristics, which together meet the objectives and content of the pedagogical preparation of students.

  12. A cross-reactive sensor array for the fluorescence qualitative analysis of heavy metal ions.

    Science.gov (United States)

    Kang, Huaizhi; Lin, Liping; Rong, Mingcong; Chen, Xi

    2014-11-01

    A cross-reactive sensor array using mercaptopropionic acid modified cadmium telluride (CdTe), glutathione modified CdTe, poly(methacrylic acid) modified silver nanoclusters, bovine serum albumin modified gold nanoclusters, rhodamine derivative and calcein blue as fluorescent indicators has been designed for the detection of seven heavy metal ions (Ag(+), Hg(2+), Pb(2+), Cu(2+), Cr(3+), Mn(2+) and Cd(2+)). The discriminatory capacity of the sensor array to different heavy metal ions in different pH solutions has been tested and the results have been analyzed with linear discriminant analysis. Results showed that the sensor array could be used to qualitatively analyze the selected heavy metal ions. The array performance was also evaluated in the identification of known and unknown samples and the preliminary results suggested the promising practicability of the designed sensor assay. PMID:25127598

  13. Linguistic uncertainty in qualitative risk analysis and how to minimize it.

    Science.gov (United States)

    Carey, Janet M; Burgman, Mark A

    2008-04-01

    Most risk assessments assume uncertainty may be decomposed into variability and incertitude. Language is often overlooked as a source of uncertainty, but linguistic uncertainty may be pervasive in workshops, committees, and other face-to-face language-based settings where it can result in misunderstanding and arbitrary disagreement. Here we present examples of linguistic uncertainty drawn from qualitative risk analysis undertaken in stakeholder workshops and describe how the uncertainties were treated. We used a process of iterative re-assessment of likelihoods and consequences, interspersed with facilitated discussion, to assist in the reduction of language-based uncertainty. The effects of this process were evident as changes in the level of agreement among groups of assessors in the ranking of hazards. PMID:18469210

  14. Qualitative Analysis of Realisation of the Organisational and Managerial Potential and Competitive Sustainability of Engineering Enterprises

    Directory of Open Access Journals (Sweden)

    Kuzmynchuk Nataliya V.

    2014-01-01

    Full Text Available The article is devoted to detection of specific features of realisation of the organisational and managerial potential and competitive sustainability of engineering enterprises, which are a strategically important link of the national economy. The article forms a scorecard, which characterises directions of competitive sustainability (production, financial, marketing and social and organisational and managerial potential. The use of the economic and mathematical method of cluster analysis allowed assessment of the level of efficiency of material motivation of personnel and development of economic processes of an enterprise by qualitative features. The article conducts distribution of engineering enterprises by the level of organisational and managerial potential and competitive sustainability, which allows generation of high quality timely managerial decisions depending on the focus on a problem solution and ensures realisation of an adequate model of enterprise development under conditions of the transformational economy.

  15. DEFINING A COHERENT ORGANISA-TIONAL VISUAL IDENTITY – A QUALITATIVE ANALYSIS

    Directory of Open Access Journals (Sweden)

    R.D. RIZEA

    2013-06-01

    Full Text Available In today’s competitive environment, any organisation should carefully design its commu-nication strategy as it reflects on its overall image. On one hand, this article aims to define what a good visual identity means by highlighting the elements of a good visual identity through a qualitative analysis of more than three dozen visual identities documents from organisations from different industries, private companies, governmental agencies and NGOs. Moreover, by observing different perspectives on what organisations consider as a desired visual identity, the article suggests directions for improving the visual identity documentation. Finally, as the most common elements of visual identity are identified, the authors briefly draft a strategy for creating a visual identity.

  16. ANSI/ASHRAE/IES Standard 90.1-2013 Preliminary Determination: Qualitative Analysis

    Energy Technology Data Exchange (ETDEWEB)

    Halverson, Mark A.; Hart, Reid; Athalye, Rahul A.; Rosenberg, Michael I.; Richman, Eric E.; Winiarski, David W.

    2014-03-01

    Section 304(b) of the Energy Conservation and Production Act (ECPA), as amended, requires the Secretary of Energy to make a determination each time a revised version of ASHRAE Standard 90.1 is published with respect to whether the revised standard would improve energy efficiency in commercial buildings. When the U.S. Department of Energy (DOE) issues an affirmative determination on Standard 90.1, states are statutorily required to certify within two years that they have reviewed and updated the commercial provisions of their building energy code, with respect to energy efficiency, to meet or exceed the revised standard. This report provides a preliminary qualitative analysis of all addenda to ANSI/ASHRAE/IES Standard 90.1-2010 (referred to as Standard 90.1-2010 or 2010 edition) that were included in ANSI/ASHRAE/IES Standard 90.1-2013 (referred to as Standard 90.1-2013 or 2013 edition).

  17. Implementation of newly adopted technology in acute care settings: a qualitative analysis of clinical staff

    Science.gov (United States)

    Langhan, Melissa L.; Riera, Antonio; Kurtz, Jordan C.; Schaeffer, Paula; Asnes, Andrea G.

    2015-01-01

    Objective Technologies are not always successfully implemented into practise. We elicited experiences of acute care providers with the introduction of technology and identified barriers and facilitators in the implementation process. Methods A qualitative study using one-on-one interviews among a purposeful sample of 19 physicians and nurses within ten emergency departments and intensive care units was performed. Grounded theory, iterative data analysis and the constant comparative method were used to inductively generate ideas and build theories. Results Five major categories emerged: decision-making factors, the impact on practise, technology's perceived value, facilitators and barriers to implementation. Barriers included negative experiences, age, infrequent use, and access difficulties. A positive outlook, sufficient training, support staff, and user friendliness were facilitators. Conclusions This study describes strategies implicated in the successful implementation of newly adopted technology in acute care settings. Improved implementation methods and evaluation of implementation processes are necessary for successful adoption of new technology. PMID:25367721

  18. A Coding Scheme Development Methodology Using Grounded Theory For Qualitative Analysis Of Pair Programming

    Directory of Open Access Journals (Sweden)

    Stephan Salinger

    2008-01-01

    Full Text Available A number of quantitative studies of pair programming (the practice of two programmers working together using just one computer have partially conflicting results. Qualitative studies are needed to explain what is really going on. We support such studies by taking a grounded theory (GT approach for deriving a coding scheme for the objective conceptual description of specific pair programming sessions independent of a particular research goal. The present article explains why our initial attempts at using GT failed and describes how to avoid these difficulties by a predetermined perspective on the data, concept naming rules, an analysis results metamodel, and pair coding. These practices may be helpful in all GT situations, particularly those involving very rich data such as video data. We illustrate the operation and usefulness of these practices by real examples derived from our coding work and present a few preliminary hypotheses regarding pair programming that have surfaced.

  19. Blind Analysis of Fortified Pesticide Residues in Carrot Extracts using GC-MS to Evaluate Qualitative and Quantitative Performance

    Science.gov (United States)

    Unlike quantitative analysis, the quality of the qualitative results in the analysis of pesticide residues in food are generally ignored in practice. Instead, chemists tend to rely on advanced mass spectrometric techniques and general subjective guidelines or fixed acceptability criteria when makin...

  20. Quantitative and Qualitative Analysis of Surface Modified Cellulose Utilizing TGA-MS

    OpenAIRE

    Daniel Loof; Matthias Hiller; Hartmut Oschkinat; Katharina Koschek

    2016-01-01

    With the aim to enhance interfacial adhesion of a hydrophobic polymer matrix and cellulosic fibers and fillers, chemical surface modifications with silane coupling agents are performed. Thermogravimetric analysis (TGA) could be used to determine the degree of surface functionalization. However, similar thermal properties of treated and untreated cellulose hamper a precise determination of silane loading. This contribution deals with quantitative determination of silane loading combining both ...

  1. Iranian cancer patients’ perception of spirituality: a qualitative content analysis study

    Directory of Open Access Journals (Sweden)

    Rahnama Mozhgan

    2012-10-01

    Full Text Available Abstract Background Spirituality is a subjective and multi-dimensional concept. The ambiguity in its meaning can create barriers in its application in both education and medicine. The present study aimed to explore the Iranian cancer patients’ perception of spirituality. Methods A qualitative study, using the content analysis approach, was conducted. Semi-structured interviews were held with 11 cancer patients and six members of their families in one of Tehran’s hospitals and a charity institute. The data generated were transcribed verbatim and content analysis approach was used for data reduction, naming data, obtaining analytical code and determining categories and themes. Results Three themes (and seven sub-themes emerged from the data analysis: 1 God as the spiritual truth (relationship with God and trust in God, 2 Moralities as a spiritual sign (considering personal and social moral codes and 3 Spiritual resources as the source of hope (religious, personal and social resources. Conclusions Overall, in the view of cancer patients, spirituality can be defined in a religious context. However, some of them believe in morality beside religiosity, so health care staff must pay due attention to these aspects, to provide them with the opportunity to use spiritual resources.

  2. Qualitative analysis of the overhand throw by undergraduates in education using a distance learning computer program.

    Science.gov (United States)

    McKethan, Robert N; Kernodle, Michael W; Brantz, Douglas; Fischer, Joseph

    2003-12-01

    The purpose was to (a) examine whether computer-based distance learning could enhance the qualitative analysis skills (error detection in the overhand throw) of undergraduates in education and (b) examine the effectiveness of several methods of information presentation (video file and text) on distance learning. Participants were randomly assigned to 1 of 4 groups, to detect errors in an incorrect throwing motion of a model on the computer screen. Group 1 (n=13) was the control; Group 2 (n=13) viewed a video of the appropriate throwing mechanics; Group 3 (n=13) viewed text information describing the appropriate mechanics of the overhand throw; and Group 4 (n=16) received a combination of video and text information. On Day 1 participants took a pretest. Treatment and testing occurred on Days 2 through 8. Then 5 days later participants took a retention test. One-way analysis of variance confirmed no significant differences between groups at Pretest (Day 1). An analysis of variance with repeated measures indicated learning over practice. Paired-sample t tests between Days 1 and 8 showed the video plus text group without significant change. PMID:14738367

  3. QUALITATIVE ANALYSIS AND ANTHELMINTIC ACTIVITY OF HYDRO-ALCOHOLIC EXTRACT OF TABERNAEMONTANA DIVARICATA

    Directory of Open Access Journals (Sweden)

    B. N. VEDHA HARI, AKHILA SRAVYA DANTU, P. SHANKARGURU, D. RAMYA DEVI

    2013-09-01

    Full Text Available Tabernaemontana divaricata is a common shrub found in the tropical regions and is often used for medicinal purposes, particularly the flowers of the plant. The present study is conducted to compare and identify the phytochemical constituents by Thin Layer Chromatography (TLC and Qualitative Phytochemical analysis and to determine the anthelmentic activity of fresh and dried flower extract of Tabernaemontana divaricata. The extract is obtained using two different methods like cold maceration and hot solvent extraction by using soxhlet apparatus, first with petroleum ether followed by hydroalcohol as solvents. The preliminary phytochemical analysis of the extract indicated the presence of Alkaloids, Flavanoids, Steroids, Proteins, Carbohydrates and Tannins. The Rf value of TLC is calculated and compared with standard values and analysis proved the presence of the phytochemical constituents. The anthelmentic activity studies are performed using Indian earth worms. For this, the concentrated extract is diluted to various concentrations, and the effect of each solution is studied by measuring the time taken for paralysis and death of the earth worms. It is found to show significant anthelmentic activity at various concentrations compared with that of the standard drug Metronidazole.

  4. Discrete event simulation tool for analysis of qualitative models of continuous processing systems

    Science.gov (United States)

    Malin, Jane T. (Inventor); Basham, Bryan D. (Inventor); Harris, Richard A. (Inventor)

    1990-01-01

    An artificial intelligence design and qualitative modeling tool is disclosed for creating computer models and simulating continuous activities, functions, and/or behavior using developed discrete event techniques. Conveniently, the tool is organized in four modules: library design module, model construction module, simulation module, and experimentation and analysis. The library design module supports the building of library knowledge including component classes and elements pertinent to a particular domain of continuous activities, functions, and behavior being modeled. The continuous behavior is defined discretely with respect to invocation statements, effect statements, and time delays. The functionality of the components is defined in terms of variable cluster instances, independent processes, and modes, further defined in terms of mode transition processes and mode dependent processes. Model construction utilizes the hierarchy of libraries and connects them with appropriate relations. The simulation executes a specialized initialization routine and executes events in a manner that includes selective inherency of characteristics through a time and event schema until the event queue in the simulator is emptied. The experimentation and analysis module supports analysis through the generation of appropriate log files and graphics developments and includes the ability of log file comparisons.

  5. The programming of the qualitative analysis of data from the gamma spectrometry

    International Nuclear Information System (INIS)

    Natural radioactivity was discovered in 1896 Becquerel on uranium and in 1898 by Curie and Pierre on uranium, radium and polonium. In 1934, Irene and Frederic Julio Curie discovered that boron, aluminium and magnesium can be rendered radioactive bombardement with radiation polonium. Hence the discovery of artificial radioactivity. After several experiences in the field of radioactivity, the following characteristics were observed. The nature of radiation energy depends on the nature of the bombarding particle and the nature of the atomic nucleus bombed. Hence, the possibility of identifying this atom. The intensity of radiation of a given energy is emitted is proportional to the number of atoms bombarded. Hence, the possibility of determining the mass of an element in the sample. For information on a given sample, it is sufficient to direct nuclear radiation emitted on the sample. The radiation is energy will excite the electronic layer or the nuclei of atoms in the sample and make it transmitter of radiation by changing its electronic configuration. The thickness, density, nature and structure of a sample have different effects on a radiation incident. The results in a decrease in intensity. The computer whose purpose is to facilitate the speedy execution with precision, reliability and security with a reassuring, is not sparing nuclear science in general and the field of activation analysis in particular. The programming phase of the qualitative analysis solves the problem concerning the analysis of : - The speed of processing - The accuracy of results - The reliability in the presentation of results - The data security

  6. Primer izpeljave analize besedila v kvalitativni raziskavi = An Example of Performing a Text Analysis in a Qualitative Research

    Directory of Open Access Journals (Sweden)

    Vasja Roblek

    2009-03-01

    Full Text Available The article presents an example of a text analysis and interpretation based on a qualitative research. In the first part we focus on the theoretical definition of analytical tools and characteristics of the text analysis and interpretation within the frame of qualitative research. We continue with presenting an option of analysing and interpreting acquired data by using the analytical tool thematic network. The presented option is based on the results we obtained by half-structured interviews, personal notes and by observing the functioning of two networks.

  7. Tagungsbericht: 3. Workshop "Qualitative Psychology: Research Questions and Matching Methods of Analysis

    OpenAIRE

    Gürtler, Leo

    2003-01-01

    Dieser Tagungsbericht behandelt den dritten Workshop Qualitative Psychologie, welcher vom 25.-27. Oktober 2002 in Perlora (Spanien) stattfand und von dem Zentrum für Qualitative Psychologie (Tübingen) ausgerichtet wurde. Das Hauptthema der Konferenz war Untersuchungsfragen und passende Analysemethoden. Forscher/innen (junge wie erfahrene Expert/innen des Bereiches Qualitative Methodologie) aus unterschiedlichen Ländern präsentierten ihre Arbeit und die hieraus folgenden Ergebnisse. Ein besond...

  8. Sensitivity analysis of monthly reference crop evapotranspiration trends in Iran: a qualitative approach

    Science.gov (United States)

    Mosaedi, Abolfazl; Ghabaei Sough, Mohammad; Sadeghi, Sayed-Hossein; Mooshakhian, Yousof; Bannayan, Mohammad

    2016-02-01

    The main objective of this study was to analyze the sensitivity of the monthly reference crop evapotranspiration (ETo) trends to key climatic factors (minimum and maximum air temperature (T max and T min), relative humidity (RH), sunshine hours (t sun), and wind speed (U 2)) in Iran by applying a qualitative detrended method, rather than the historical mathematical approach. Meteorological data for the period of 1963-2007 from five synoptic stations with different climatic characteristics, including Mashhad (mountains), Tabriz (mountains), Tehran (semi-desert), Anzali (coastal wet), and Shiraz (semi-mountains) were used to address this objective. The Mann-Kendall test was employed to assess the trends of ETo and the climatic variables. The results indicated a significant increasing trend of the monthly ETo for Mashhad and Tabriz for most part of the year while the opposite conclusion was drawn for Tehran, Anzali, and Shiraz. Based on the detrended method, RH and U 2 were the two main variables enhancing the negative ETo trends in Tehran and Anzali stations whereas U 2 and temperature were responsible for this observation in Shiraz. On the other hand, the main meteorological variables affecting the significant positive trend of ETo were RH and t sun in Tabriz and T min, RH, and U 2 in Mashhad. Although a relative agreement was observed in terms of identifying one of the first two key climatic variables affecting the ETo trend, the qualitative and the quantitative sensitivity analysis solutions did never coincide. Further research is needed to evaluate this interesting finding for other geographic locations, and also to search for the major causes of this discrepancy.

  9. Spectroscopic and Chemometric Analysis of Binary and Ternary Edible Oil Mixtures: Qualitative and Quantitative Study.

    Science.gov (United States)

    Jović, Ozren; Smolić, Tomislav; Primožič, Ines; Hrenar, Tomica

    2016-04-19

    The aim of this study was to investigate the feasibility of FTIR-ATR spectroscopy coupled with the multivariate numerical methodology for qualitative and quantitative analysis of binary and ternary edible oil mixtures. Four pure oils (extra virgin olive oil, high oleic sunflower oil, rapeseed oil, and sunflower oil), as well as their 54 binary and 108 ternary mixtures, were analyzed using FTIR-ATR spectroscopy in combination with principal component and discriminant analysis, partial least-squares, and principal component regression. It was found that the composition of all 166 samples can be excellently represented using only the first three principal components describing 98.29% of total variance in the selected spectral range (3035-2989, 1170-1140, 1120-1100, 1093-1047, and 930-890 cm(-1)). Factor scores in 3D space spanned by these three principal components form a tetrahedral-like arrangement: pure oils being at the vertices, binary mixtures at the edges, and ternary mixtures on the faces of a tetrahedron. To confirm the validity of results, we applied several cross-validation methods. Quantitative analysis was performed by minimization of root-mean-square error of cross-validation values regarding the spectral range, derivative order, and choice of method (partial least-squares or principal component regression), which resulted in excellent predictions for test sets (R(2) > 0.99 in all cases). Additionally, experimentally more demanding gas chromatography analysis of fatty acid content was carried out for all specimens, confirming the results obtained by FTIR-ATR coupled with principal component analysis. However, FTIR-ATR provided a considerably better model for prediction of mixture composition than gas chromatography, especially for high oleic sunflower oil. PMID:26971405

  10. Quantitative and Qualitative Analysis of Surface Modified Cellulose Utilizing TGA-MS

    Directory of Open Access Journals (Sweden)

    Daniel Loof

    2016-05-01

    Full Text Available With the aim to enhance interfacial adhesion of a hydrophobic polymer matrix and cellulosic fibers and fillers, chemical surface modifications with silane coupling agents are performed. Thermogravimetric analysis (TGA could be used to determine the degree of surface functionalization. However, similar thermal properties of treated and untreated cellulose hamper a precise determination of silane loading. This contribution deals with quantitative determination of silane loading combining both TGA and elemental analysis. Firstly, silane modified celluloses were studied by FT-IR, Raman, solid state NMR spectroscopy, and polarized light microscopy in order to determine functional groups and to study the impact of chemical treatment on cellulose morphology. Secondly, thermal stability and pyrolysis processes were studied by TG-MS analysis. In order to determine the exact silane loading, the mass percentages of the appropriate elements were quantified by elemental analysis and correlated with the charred residues determined by TGA yielding a linear dependency. With that correlation, it was possible to determine silane loadings for additional samples utilizing simple TGA measurements. The main advantage of that approach is that only one calibration is necessary for routine analyses of further samples and TGA-MS coupling gives additional information on thermal stability and pyrolysis routes, simultaneously.

  11. Sentence-processing in echo state networks: a qualitative analysis by finite state machine extraction

    Science.gov (United States)

    Frank, Stefan L.; Jacobsson, Henrik

    2010-06-01

    It has been shown that the ability of echo state networks (ESNs) to generalise in a sentence-processing task can be increased by adjusting their input connection weights to the training data. We present a qualitative analysis of the effect of such weight adjustment on an ESN that is trained to perform the next-word prediction task. Our analysis makes use of CrySSMEx, an algorithm for extracting finite state machines (FSMs) from the data about the inputs, internal states, and outputs of recurrent neural networks that process symbol sequences. We find that the ESN with adjusted input weights yields a concise and comprehensible FSM. In contrast, the standard ESN, which shows poor generalisation, results in a massive and complex FSM. The extracted FSMs show how the two networks differ behaviourally. Moreover, poor generalisation is shown to correspond to a highly fragmented quantisation of the network's state space. Such findings indicate that CrySSMEx can be a useful tool for analysing ESN sentence processing.

  12. Nurses' perspectives on breaking bad news to patients and their families: a qualitative content analysis.

    Science.gov (United States)

    Abbaszadeh, Abbas; Ehsani, Seyyedeh Roghayeh; Begjani, Jamal; Kaji, Mohammad Akbari; Dopolani, Fatemeh Nemati; Nejati, Amir; Mohammadnejad, Esmaeil

    2014-01-01

    Breaking bad news is quite often not done in an effective manner in clinical settings due to the medical staff lacking the skills necessary for speaking to patients and their families. Bad news is faced with similar reactions on the part of the news receiver in all cultures and nations. The purpose of this study was to explore the perspectives of Iranian nurses on breaking bad news to patients and their families. In this research, a qualitative approach was adopted. In-depth and semi-structured interviews were conducted with 19 nurses who had at least one year work experience in the ward, and content analysis was performed to analyze the data. Five major categories emerged from data analysis, including effective communication with patients and their families, preparing the ground for delivering bad news, minimizing the negativity associated with the disease, passing the duty to physicians, and helping patients and their families make logical treatment decisions. The results of this study show that according to the participants, it is the physicians' duty to give bad news, but nurses play an important role in delivering bad news to patients and their companions and should therefore be trained in clinical and communicative skills to be able to give bad news in an appropriate and effective manner. PMID:25512837

  13. Nurses’ perspectives on breaking bad news to patients and their families: a qualitative content analysis

    Science.gov (United States)

    Abbaszadeh, Abbas; Ehsani, Seyyedeh Roghayeh; begjani, Jamal; Kaji, Mohammad Akbari; Dopolani, Fatemeh Nemati; Nejati, Amir; Mohammadnejad, Esmaeil

    2014-01-01

    Breaking bad news is quite often not done in an effective manner in clinical settings due to the medical staff lacking the skills necessary for speaking to patients and their families. Bad news is faced with similar reactions on the part of the news receiver in all cultures and nations. The purpose of this study was to explore the perspectives of Iranian nurses on breaking bad news to patients and their families. In this research, a qualitative approach was adopted. In-depth and semi-structured interviews were conducted with 19 nurses who had at least one year work experience in the ward, and content analysis was performed to analyze the data. Five major categories emerged from data analysis, including effective communication with patients and their families, preparing the ground for delivering bad news, minimizing the negativity associated with the disease, passing the duty to physicians, and helping patients and their families make logical treatment decisions. The results of this study show that according to the participants, it is the physicians’ duty to give bad news, but nurses play an important role in delivering bad news to patients and their companions and should therefore be trained in clinical and communicative skills to be able to give bad news in an appropriate and effective manner. PMID:25512837

  14. How organizational learning is associated with patient rights: a qualitative content analysis

    Science.gov (United States)

    Heidari, Shahin; Nayeri, Nahid Dehghan; Ravari, Ali; Sabzevari, Sakineh

    2016-01-01

    Background Nowadays, patient rights, particularly receiving favorable health care based on modern knowledge, informed consent, and privacy, are important issues in health care delivery systems. Organizational learning is considered an important factor influencing health care quality and patient rights. However, there is little evidence regarding this issue. Objective The present study was conducted to explore the role of organizational learning in patient rights from clinical nurses’ viewpoint. Design This qualitative study was conducted through conventional content analysis. In total, 18 nurses who met the inclusion criteria participated in this study through purposive sampling with maximum variation. Data were gathered through 20 in-depth, semi-structured interviews, which continued until data saturation was achieved. Data collection also included constant and simultaneous comparative analyses. Results Data analysis led to four major themes: conservation of patient safety, providing favorable care, being the patient's advocate, and informing the patients. All the participants believed that organizational learning could play a vital role in respecting patient rights and interests. Conclusions Participants believed that their efforts to conduct organizational learning, tried to improve respecting the patient rights via conservation of patient safety, trying to improve quality of care, being an advocate, and informing the patient. It would be appreciable if nursing managers honored the commitment of the nurses for learning, highlight their role as defenders of patient rights, and encourage them to initiate organizational learning. PMID:27465289

  15. Accumulation patterns of Cr in Callitriche organs--qualitative and quantitative analysis.

    Science.gov (United States)

    Augustynowicz, Joanna; Gajewski, Zbigniew; Kostecka-Gugała, Anna; Wróbel, Paweł; Kołton, Anna

    2016-02-01

    The aims of this study were both the qualitative and quantitative analysis of chromium accumulation in the shoots of Callitriche cophocarpa. This globally distributed, submersed macrophyte exhibits outstanding Cr phytoremediation capacity in an aquatic environment. Cr was applied separately for 7 days at two stable forms as Cr(VI) and Cr(III), known from their diverse physicochemical properties and toxicities. The maps of Cr depositions in young leaves, mature leaves, and stems were obtained by micro X-ray fluorescence spectroscopy (μXRF). The detailed analysis of XRF maps was done based on Image-Pro PLUS (Media Cybernetics) software. Cr was accumulated either in trichomes or vascular bundles in respect to the element speciation and the plant organ. The concentration of Cr significantly increased in the following order: Cr(VI) mature leaves < Cr(VI) young leaves = Cr(VI) stems < Cr(III) young leaves ≤ Cr(III) mature leaves ≤ Cr(III) stems. The observed differences in distribution and accumulation of Cr were correlated with the different reduction potential of Cr(VI) by particular plant organs. The reduction of Cr(VI) is considered the main detoxification mechanism of the highly toxic Cr(VI) form. The unique L-band electron resonance spectrometer (L-band EPR) was applied to follow the reduction of Cr(VI) to Cr(III) in the studied material. PMID:26438365

  16. Quantum dots assisted laser desorption/ionization mass spectrometric detection of carbohydrates: qualitative and quantitative analysis.

    Science.gov (United States)

    Bibi, Aisha; Ju, Huangxian

    2016-04-01

    A quantum dots (QDs) assisted laser desorption/ionization mass spectrometric (QDA-LDI-MS) strategy was proposed for qualitative and quantitative analysis of a series of carbohydrates. The adsorption of carbohydrates on the modified surface of different QDs as the matrices depended mainly on the formation of hydrogen bonding, which led to higher MS intensity than those with conventional organic matrix. The effects of QDs concentration and sample preparation method were explored for improving the selective ionization process and the detection sensitivity. The proposed approach offered a new dimension to the application of QDs as matrices for MALDI-MS research of carbohydrates. It could be used for quantitative measurement of glucose concentration in human serum with good performance. The QDs served as a matrix showed the advantages of low background, higher sensitivity, convenient sample preparation and excellent stability under vacuum. The QDs assisted LDI-MS approach has promising application to the analysis of carbohydrates in complex biological samples. Copyright © 2016 John Wiley & Sons, Ltd. PMID:27041659

  17. Maternal bond with cardiosurgically treated infant. Qualitative analysis of mothers' narratives.

    Science.gov (United States)

    Sikora, Karolina; Janusz, Bernadetta

    2014-01-01

    The aim of this work is to describe the experience of being a mother by women who together with their children stay on the ward after cardiac surgical correction of congenital heart defects. The research material consisted of the narratives of mothers whose children were born with a heart defect and surgically treated. Four women aged 21-30 years were participants of this study. The age of the subjects' children ranged from 5 weeks to 1 year and three months. The heart defects with which the children were born were hypoplastic left heart syndrome (HLHS ) or atrioventricular canal defect. The research was carried out using the narrative interview. Qualitative analysis was carried out according to the rules of thematic analysis. The results of the research confirm that cardiac treatment can have a significant impact on maternal care patterns and the mother-infant bonding process. Intermittent contact with an infant can lead to loss of control over what happens to the child and the loss of a sense of competence to care for him. Medical staff face the challenge of supporting the parents of hospitalized children in the process of building relationships with a sick infant. The actions of doctors and nurses to enable parents to care for a baby can help foster their sense of competence and responsibility. PMID:25874781

  18. Qualitative and quantitative analysis with contrast-enhanced ultrasonography; Diagnosis value in hypoechoic renal angiomylipoma

    Energy Technology Data Exchange (ETDEWEB)

    Lu, Qing; Huang, Bei Jian; Wang, Wen Ping; Li, Cui Zian; Xue, Li Yun [Shanghai Imaging Institute of Medicine, Dept. of Ultrasound, Zhongshan Hospital, Fudan University, Shanghai (China)

    2015-04-15

    To evaluate the value of enhancement features and quantitative parameters of contrast-enhanced ultrasonography (CEUS) in differentiating solid hypoechoic renal angiomyolipomas (AMLs) from clear cell renal cell carcinomas (ccRCCs). We analyzed the enhancement features and quantitative parameters of CEUS in 174 hypoechoic renal masses (32 AMLs and 142 ccRCCs) included in the study. Centripetal enhancement pattern was more common in AMLs than in ccRCCs on CEUS (71.9% vs. 23.2%, p < 0.001). At peak enhancement, all AMLs showed homogeneous enhancement (100% in AML, 27.5% in ccRCCs; p < 0.001). Quantitative analysis showed no significant difference between rise time and time to peak. Tumor-to-cortex (TOC) enhancement ratio in AMLs was significantly lower than that in ccRCCs (p < 0.001). The criteria of centripetal enhancement and homogeneous peak enhancement together with TOC ratio < 91.0% used to differentiate hypoechoic AMLs from ccRCCs resulted in a sensitivity and specificity of 68.9% and 95.8%, respectively. Both qualitative and quantitative analysis with CEUS are valuable in the differential diagnosis of hypoechoic renal AMLs from ccRCCs.

  19. Qualitative analysis of coal combusted in boilers of the thermal power plants in Bosnia and Herzegovina

    Directory of Open Access Journals (Sweden)

    Đurić Slavko N.

    2012-01-01

    Full Text Available In this paper we have looked into the qualitative analysis of coals in Bosnia and Herzegovina (B-H. The analysis includes the following characteristics: moisture (W, ash (A, combustible matter (Vg and lower heating value (Hd. From the statistic parameters we have determined: absolute range (R, arithmetic mean (X, standard deviation (S and variations coefficient (Cv. It has been shown that the coal characteristics (W, A, Vg, Hd have normal distribution. The analysis show that there are considerable deviations of ash characteristics: moisture (36.23%, ash (34.21%, combustible matter (16.15% and lower heating value (25.16% from the mean value which is shown by the variations coefficient (Cv. Large oscilations of mass portions: W, A, Vg and Hd around the mean value can adversely influence the function of a boiler plant and an electric filter plant in thermal power plants in B-H in which the mentioned types of coal burn. Large ash oscilations (34.21% around the mean value point out to the inability of application of dry procedures of desulphurisation of smoke gasses (FGD due to the additional quantity of ash. It has been shown that the characteristics of Bosnian types of coal do not deviate a lot from the characteristics of coal in the surrounding countries (coals of Serbia and Monte Negro. The results can be used in analysis of coal combustion in thermal power plants, optimisation of electrical-filtre, reduction of SO2 in smoke gas and other practical problems.

  20. Using Generic Inductive Approach in Qualitative Educational Research: A Case Study Analysis

    Science.gov (United States)

    Liu, Lisha

    2016-01-01

    Qualitative research strategy has been widely adopted by educational researchers in order to improve the quality of their empirical studies. This paper aims to introduce a generic inductive approach, pragmatic and flexible in qualitative theoretical support, by describing its application in a study of non-English major undergraduates' English…

  1. Qualitative Data Analysis and Interpretation in Counseling Psychology: Strategies for Best Practices

    Science.gov (United States)

    Yeh, Christine J.; Inman, Arpana G.

    2007-01-01

    This article presents an overview of various strategies and methods of engaging in qualitative data interpretations and analyses in counseling psychology. The authors explore the themes of self, culture, collaboration, circularity, trustworthiness, and evidence deconstruction from multiple qualitative methodologies. Commonalities and differences…

  2. Rethinking a Case Study Method in Educational Research: A Comparative Analysis Method in Qualitative Research

    Science.gov (United States)

    Murakami, Yusuke

    2013-01-01

    There are two types of qualitative research that analyze a small number of cases or a single case: idiographic differentiation and nomothetic/generalization. There are few case studies of generalization. This is because theoretical inclination is weak in the field of education, and the binary framework of quantitative versus qualitative research…

  3. Building Connections: An Interpretative Phenomenological Analysis of Qualitative Research Students' Learning Experiences

    Science.gov (United States)

    Cooper, Robin; Fleischer, Anne; Cotton, Fatima A.

    2012-01-01

    This paper describes a phenomenological study in which the authors explored students' experiences learning qualitative research in a variety of academic fields. Semi-structured in-depth interviews were conducted with six participants from various academic fields who had completed at least one post-secondary-school-level qualitative research course…

  4. Silent loss and the clinical encounter: Parents’ and physicians’ experiences of stillbirth–a qualitative analysis

    Directory of Open Access Journals (Sweden)

    Kelley Maureen C

    2012-11-01

    Full Text Available Abstract Background In the United States, an estimated 70 stillbirths occur each day, on average 25,000 each year. Research into the prevalence and causes of stillbirth is ongoing, but meanwhile, many parents suffer this devastating loss, largely in silence, due to persistent stigma and taboo; and many health providers report feeling ill equipped to support grieving parents. Interventions to address bereavement after neonatal death are increasingly common in U.S. hospitals, and there is growing data on the nature of parent bereavement after a stillbirth. However, further research is needed to evaluate supportive interventions and to investigate the parent-clinician encounter during hospitalization following a stillbirth. Qualitative inquiry offers opportunities to better understand the lived experience of parents against the backdrop of clinicians’ beliefs, intentions, and well-meaning efforts to support grieving parents. Methods We present a secondary qualitative analysis of transcript data from 3 semi-structured focus groups conducted with parents who had experienced a stillbirth and delivered in a hospital, and 2 focus groups with obstetrician-gynecologists. Participants were drawn from the greater Seattle region in Washington State. We examine parents’ and physicians’ experiences and beliefs surrounding stillbirth during the clinical encounter using iterative discourse analysis. Results Women reported that the cheery, bustling environment of the labor and delivery setting was a painful place for parents who had had a stillbirth, and that the well-meaning attempts of physicians to offer comfort often had the opposite effect. Parents also reported that their grief is deeply felt but not socially recognized. While physicians recognized patients’ grief, they did not grasp its depth or duration. Physicians viewed stillbirth as an unexpected clinical tragedy, though several considered stillbirth less traumatic than the death of a neonate

  5. Applying Qualitative Hazard Analysis to Support Quantitative Safety Analysis for Proposed Reduced Wake Separation Conops

    Science.gov (United States)

    Shortle, John F.; Allocco, Michael

    2005-01-01

    This paper describes a scenario-driven hazard analysis process to identify, eliminate, and control safety-related risks. Within this process, we develop selective criteria to determine the applicability of applying engineering modeling to hypothesized hazard scenarios. This provides a basis for evaluating and prioritizing the scenarios as candidates for further quantitative analysis. We have applied this methodology to proposed concepts of operations for reduced wake separation for closely spaced parallel runways. For arrivals, the process identified 43 core hazard scenarios. Of these, we classified 12 as appropriate for further quantitative modeling, 24 that should be mitigated through controls, recommendations, and / or procedures (that is, scenarios not appropriate for quantitative modeling), and 7 that have the lowest priority for further analysis.

  6. Hybrid chemical and nondestructive-analysis technique

    Energy Technology Data Exchange (ETDEWEB)

    Hsue, S.T.; Marsh, S.F.; Marks, T.

    1982-01-01

    A hybrid chemical/NDA technique has been applied at the Los Alamos National Laboratory to the assay of plutonium in ion-exchange effluents. Typical effluent solutions contain low concentrations of plutonium and high concentrations of americium. A simple trioctylphosphine oxide (TOPO) separation can remove 99.9% of the americium. The organic phase that contains the separated plutonium can be accurately assayed by monitoring the uranium L x-ray intensities.

  7. Hybrid chemical and nondestructive analysis technique

    International Nuclear Information System (INIS)

    A hybrid chemical/NDA technique has been applied at the Los Alamos National Laboratory to the assay of plutonium in ion-exchange effluents. Typical effluent solutions contain low concentrations of plutonium and high concentrations of americium. A simple trioctylphosphine oxide (TOPO) separation can remove 99.9% of the americium. The organic phase that contains the separated plutonium can be accurately assayed by monitoring the uranium L x-ray intensities

  8. "Cause That's the Only Skills in School You Need": A Qualitative Analysis of Revenge Goals in Poor Urban Youth

    Science.gov (United States)

    Jäggi, Lena; Kliewer, Wendy

    2016-01-01

    Revenge goals are correlated with maladjustment, and retaliation is a factor driving youth violence. However, revenge might be an important social tool adolescents use to achieve (self-)justice in environments where institutionalized interventions from authorities such as teachers or police are limited. This qualitative secondary analysis of 50…

  9. Hybrid correspondence analysis and correlation to analyze the market position from data with two qualitative and p-2 quantitative variables

    Science.gov (United States)

    Ginanjar, Irlandia

    2015-12-01

    Analysis of the market position will be easier, efficient, and informative when based on a perceptual map, that can display objects and characteristics. With perceptual map we can identify the information about the objects similarity, the characteristics relationships, and relationship between the object and the characteristics. Characteristics of the object are usually more than two variables, those variables that sometimes are qualitative and some are quantitative. Based on that this paper introduce a method of analysis called hybrid correspondence analysis and correlation (HCAC), this method is the incorporation of correspondence analysis (CA) with biplot of correlation, where the mapped of two qualitative variables is using CA, and for quantitative variables is using correlations. HCAC produces a perceptual map that displays the object, the qualitative characteristics, and quantitative characteristics in a single map, without changing the quantitative data into qualitative data, so that the information obtained is more complete. A reference for mapping quality is counted from the first and second cumulative percent of eigenvalues where resulting from CA.

  10. Qualitative Analysis of Teeth and Evaluation of Amalgam Elements Penetration into Dental Matrix Using Laser Induced Breakdown Spectroscopy

    OpenAIRE

    Gazmeh, Meisam; Bahreini, Maryam; Tavassoli, Seyed Hassan; Asnaashari, Mohammad

    2015-01-01

    Introduction: In this study, laser induced breakdown spectroscopy (LIBS) is used for qualitative analysis of healthy and carious teeth. The technique of laser ablation is receiving increasing attention for applications in dentistry, specifically for the treatment of teeth such as drilling of micro-holes and plaque removal.

  11. Strategies to Improve Teacher Retention in American Overseas Schools in the Near East South Asia Region: A Qualitative Analysis

    Science.gov (United States)

    Mancuso, Steven V.; Roberts, Laura; White, George P.; Yoshida, Roland K.; Weston, David

    2011-01-01

    Using a qualitative analysis and drawing from sociological theory, this study examined reasons for teacher turnover and retention from a representative sample of 248 teachers in American overseas schools in the Near East South Asia region. Results suggested that the most important reasons to stay or move pertained to supportive leadership,…

  12. Exploring the Nonformal Adult Educator in Twenty-First Century Contexts Using Qualitative Video Data Analysis Techniques

    Science.gov (United States)

    Alston, Geleana Drew; Ellis-Hervey, Nina

    2015-01-01

    This study examined how "YouTube" creates a unique, nonformal cyberspace for Black females to vlog about natural hair. Specifically, we utilized qualitative video data analysis techniques to understand how using "YouTube" as a facilitation tool has the ability to collectively capture and maintain an audience of more than a…

  13. Voices of Hispanic College Students: A Content Analysis of Qualitative Research within the "Hispanic Journal of Behavioral Sciences"

    Science.gov (United States)

    Storlie, Cassandra A.; Moreno, Luis S.; Portman, Tarrell Awe Agahe

    2014-01-01

    As Hispanic students continue to be an underrepresented cultural group in higher education, researchers are called to uncover the challenging and complex experience of this diverse group of students. Using the constant comparative method, these researchers conducted a content analysis of the qualitative research on the experiences of Hispanic…

  14. Coping Strategies to Hinder Intention to Leave in Iranian Nurses: A Qualitative Content Analysis

    Science.gov (United States)

    Valizadeh, Leila; Zamanzadeh, Vahid; Habibzadeh, Hosein; Alilu, Leyla; Shakibi, Ali

    2015-01-01

    Background: Due to the high clinical challenges, differences in coping strategies, and high workload in nurses, there is a need to develop strategies to keep them in the profession. The aim of the present study was to explore the Iranian nurses’ coping strategies to deal with intention to leave. Methods: A qualitative content analysis was used to obtain rich data. We performed 13 in-depth face-to-face semi-structured interviews with nurses working in hospitals affiliated to Tabriz and Urmia Universities of Medical Sciences in Iran, selected through purposive sampling. Constant comparative method was used for data analysis. Results: Three categories and eleven subcategories emerged during data analysis. The extracted categories and sub-categories consisted of (I) Self-empowerment (practical knowledge increase, responsibility, finding identification of the nurse, balancing work and life, seek support and humanitarian interests), (II) Self-controlling (tolerance, avoidance, the routine-based performance), and (III) Pursuing opportunities for advancement and promotion (community development, planning for higher education). Conclusion: Nurses make attempts to individually manage problems and stressors perceived from bedside that have led them to leave the bedside; these efforts have been effective in some cases but sometimes they are ineffective due to discontinuous training and relative competence in terms of how to manage and deal with problems. It is suggested that nurses should learn strategies scientifically to meet the challenges of bedside. Through enabling and supporting behaviors and creating opportunities for growth and professional development, nursery managers can help nurses to stay and achieve improvement of the quality of cares. PMID:26448959

  15. Coping Strategies to Hinder Intention to Leave in Iranian Nurses: A Qualitative Content Analysis

    Directory of Open Access Journals (Sweden)

    Leila Valizadeh

    2015-10-01

    Full Text Available Background: Due to the high clinical challenges, differences in coping strategies, and high workload in nurses, there is a need to develop strategies to keep them in the profession. The aim of the present study was to explore the Iranian nurses’ coping strategies to deal with intention to leave. Methods: A qualitative content analysis was used to obtain rich data. We performed 13 in-depth face-to-face semi-structured interviews with nurses working in hospitals affiliated to Tabriz and Urmia Universities of Medical Sciences in Iran, selected through purposive sampling. Constant comparative method was used for data analysis. Results: Three categories and eleven subcategories emerged during data analysis. The extracted categories and sub-categories consisted of (I Self-empowerment (practical knowledge increase, responsibility, finding identification of the nurse, balancing work and life, seek support and humanitarian interests, (II Self-controlling (tolerance, avoidance, the routine-based performance, and (III Pursuing opportunities for advancement and promotion (community development, planning for higher education. Conclusion: Nurses make attempts to individually manage problems and stressors perceived from bedside that have led them to leave the bedside; these efforts have been effective in some cases but sometimes they are ineffective due to discontinuous training and relative competence in terms of how to manage and deal with problems. It is suggested that nurses should learn strategies scientifically to meet the challenges of bedside. Through enabling and supporting behaviors and creating opportunities for growth and professional development, nursery managers can help nurses to stay and achieve improvement of the quality of cares.

  16. EDXRF for non-destructive chemical analysis

    International Nuclear Information System (INIS)

    One of the non-destructive methods used for the identification and verification of metals is by the energy-dispersive X-ray fluorescence (EDXRF) technique. EDXRF analysis provides several important advantages such as simultaneous determination of the elements present, enable to analyse a very wide concentration range, fast analysis with no sample preparation. The paper shows how this technique is developed and applied in the identification and verification of different grades of stainless steels and also precious metals analysis. (Author)

  17. TLC--densitometric method for qualitative analysis of betamethasone and its related compounds in pharmacautical preparations.

    Science.gov (United States)

    Dolowy, Małgorzata; Pyka, Alina

    2014-01-01

    A new simple and rapid TLC-densitometric procedure for the separation and identification of betamethasone and its related substances, betamethasone-17,21-dipropionate, betamethasone-17-valerate, betamethasone-21-valerate and also betamethasone disodium phosphate was developed. One of the chromatographic systems proposed in this study, which has been satisfactory applied in separation of four pairs of examined compounds was silica gel 60F254 (E. Merck, Art. 1.05554) and a mixture containing chloroform-methanol-acetic acid (99.5%) in volume composition 28:5:0.5. Densitometric measurements were done using densitometer TLC Scanner 3 at 246 nm. The proposed method was checked in terms of its specificity for the determination of betamethasone-17,21-dipropionate and betamethasone disodium phosphate in commercially available products containing both compounds, separately, as active ingredients. The results showed that the method is suitable for qualitative analysis of betamethasone derivatives in simple and combined pharmaceuticals in various dosage forms e.g., lotion and injection solution. It also can be applied in quality control of pharmaceutical formulations of betamethasone and its related compounds in form of salts and esters. PMID:25745764

  18. Qualitative analysis of end user computing strategy and experiences in promoting nursing informatics in Taiwan.

    Science.gov (United States)

    Hou, I-Ching; Chang, Polun; Wang, Tsen-Yung

    2006-01-01

    The purpose of this study was to analyse end user computing strategy and experiences in promoting nursing informatics in Taiwan. In February 2004, an 8-day NI technology training campaign was held in Taipei for 60 clinical nurses. Excel VBA was used as the tool to teach the clinical nurses, who had never written any programs, but were very interested in informatics. Three projects were determined after detailed discussion and evaluation of clinical needs and technical feasibility between the nurses and the technical support team, which was composed of one experienced informatics professor and one clinical NI assistant. A qualitative analysis was used to interview the three pairs of programming clinical nurses and their direct supervisors with a structured but open questionnaire. Representative concepts were categorized from the data until all were categorized. The concepts were organized under three categories: the purposes, the benefits and the challenges of system development. According to this study, end user computing strategy with Excel VBA was successful so far. PMID:17102334

  19. A qualitative analysis of Māori and Pacific smokers' views on informed choice and smoking

    Science.gov (United States)

    Gifford, Heather; Tautolo, El-Shadan; Erick, Stephanie; Hoek, Janet; Gray, Rebecca; Edwards, Richard

    2016-01-01

    Objectives Tobacco companies frame smoking as an informed choice, a strategy that holds individuals responsible for harms they incur. Few studies have tested this argument, and even fewer have examined how informed indigenous smokers or those from minority ethnicities are when they start smoking. We explored how young adult Māori and Pacific smokers interpreted ‘informed choice’ in relation to smoking. Participants Using recruitment via advertising, existing networks and word of mouth, we recruited and undertook qualitative in-depth interviews with 20 Māori and Pacific young adults aged 18–26 years who smoked. Analyses Data were analysed using an informed-choice framework developed by Chapman and Liberman. We used a thematic analysis approach to identify themes that extended this framework. Results Few participants considered themselves well informed and none met more than the framework's initial two criteria. Most reflected on their unthinking uptake and subsequent addiction, and identified environmental factors that had facilitated uptake. Nonetheless, despite this context, most agreed that they had made an informed choice to smoke. Conclusions The discrepancy between participants' reported knowledge and understanding of smoking's risks, and their assessment of smoking as an informed choice, reflects their view of smoking as a symbol of adulthood. Policies that make tobacco more difficult to use in social settings could help change social norms around smoking and the ease with which initiation and addiction currently occur. PMID:27188813

  20. Bringing trauma-informed practice to domestic violence programs: A qualitative analysis of current approaches.

    Science.gov (United States)

    Wilson, Joshua M; Fauci, Jenny E; Goodman, Lisa A

    2015-11-01

    Three out of 10 women and 1 out of 10 men in the United States experience violence at the hands of an intimate partner-often with devastating costs. In response, hundreds of residential and community-based organizations have sprung up to support survivors. Over the last decade, many of these organizations have joined other human service systems in adopting trauma-informed care (TIC), an approach to working with survivors that responds directly to the effects of trauma. Although there have been various efforts to describe TIC in domestic violence (DV) programs, there is a need to further synthesize this discourse on trauma-informed approaches to better understand specific applications and practices for DV programs. This study aimed to address this gap. The authors of this study systematically identified key documents that describe trauma-informed approaches in DV services and then conducted a qualitative content analysis to identify core themes. Results yielded 6 principles (Establishing emotional safety, Restoring choice and control, Facilitating connection, Supporting coping, Responding to identity and context, and Building strengths), each of which comprised a set of concrete practices. Despite the common themes articulated across descriptions of DV-specific trauma-informed practices (TIP), we also found critical differences, with some publications focusing narrowly on individual healing and others emphasizing the broader community and social contexts of violence and oppression. Implications for future research and evaluation are discussed. (PsycINFO Database Record PMID:26594925

  1. Participatory health research within a prison setting: a qualitative analysis of 'Paragraphs of passion'.

    Science.gov (United States)

    Ramsden, Vivian; Martin, Ruth; McMillan, Jennifer; Granger-Brown, Alison; Tole, Brenda

    2015-12-01

    The purpose of this research was to engage, empower and enhance the health and well-being of incarcerated women. The integration of primary health care, community-based participatory research, a settings approach to health promotion, and transformative action research guided the design of this study. A partnership between incarcerated women who became peer-researchers, correctional staff, and academic researchers facilitated the equitable contribution of expertise and decision-making by all partners. The study was conducted in a short sentence (two years or less), minimum/medium security Canadian women's correctional centre. Of the approximately 200 women that joined the research team, 115 participated in writing a 'paragraph of passion' while incarcerated between November, 2005 and August, 2007. Participatory, inductive qualitative, narrative and content analysis were used to illuminate four themes: expertise, transformation, building self-esteem, as well as access and support. The women organized monthly health forums in the prison to share their new knowledge and life experience with other incarcerated women, correctional staff, academics, and community members, and in doing so have built bridges and relationships, some of which have lasted to the present day. PMID:25312768

  2. On worries, concerns and dangers among spanish population: a qualitative analysis

    Energy Technology Data Exchange (ETDEWEB)

    Martinez, R.; Cebrian, A.L.; Menard, M. [Complutense University, Madrid (Spain); Sola, R.; Prades, A. [Centro de Investigaciones Energeticas, Medioambientales y Technologicas, Madrid (Spain)

    1998-07-01

    This paper presents qualitative findings on the principal worries, concerns and dangers surrounding risk perception extracted from the Cross-cultural Survey carried out within RISKPERCOM' research project (Risk Perception and Communication). A questionnaire was mailed to arandom sample of the Spanish population allowing a study of amplification/attenuation with regard to the tenth anniversary as well as investigating management and communication issues related to radiological matters. The questionnaires were mailed to the adult population from 18 to 75 years of age, where 48.9% males and 51.1 % females. The number of questionnaires obtained for each wave were 490. The response rate was around 69%. At this paper we present the principal concerns, worries and dangers perceived by the Spanish population as identified through three open questions. The items were grouped in different categories; national political situation, economical concern, personal/social concerns, environmental concerns, global concerns... These categories are associated through correspondence analysis to socio-demographical variables as sex, age, education, political orientation an environmental attitude. (authors)

  3. Qualitative performance and economic analysis of low cost solar fish driers in Sub-Saharan Africa

    Directory of Open Access Journals (Sweden)

    Moshood Keke Mustapha

    2014-04-01

    Full Text Available Qualitative performance and economic analysis of five low cost solar driers were evaluated at the Zoology and Physics Laboratories of the University of Ilorin, Ilorin, Nigeria. The solar driers were constructed from mosquito net, plastic, aluminum and glass with black stone inserted in it. The driers were found to be better than the other driers because they are cheap, reliable, safe to use, easy to repair, well insulated, and cost effective. The solar driers are compact, efficient with drying of fish with lowest moisture content achieved within a few days and the dried products of good quality, with long shelf life, highly acceptable to consumers. The driers save man-hour, money, use renewable energy, with no operational or maintenance costs. The driers have a long life span, with net income to fisher folks very high and the payback time for the driers very low. The adoption of the driers will contribute to the economy of rural populace in the developing countries where there is no electricity and the challenges of deforestation are becoming prominent. The improved low cost solar driers will ensure food safety and security and assist in combating climate change resulting from burning of wood and fossil fuel.

  4. Quality of life in end - stage renal disease: a qualitative analysis

    Directory of Open Access Journals (Sweden)

    Theofilou P.

    2011-04-01

    Full Text Available Aim: The presenting of views both of haemodialysis and peritoneal dialysis patients concerning the meaning of quality of life in general, the factors that affect individual’s quality of life as well as the dimensions which patients themselves consider that they affect their quality of life. Material and Method: For data collection, semi-directed interviews were selected. The three questions which were answered by patients were referring to the meaning of quality of life as well as to the influence factors. The factors which affect patients’ quality of life, according to them, were also investigated. As far as the material of the specific qualitative analysis is concerned, 20 patients with end-stage renal disease participated. Specifically, 10 haemodialysis patients and 10 peritoneal dialysis patients. The interviews took place in November 2006. Results: Four patients in haemodialysis considered that not only the lack of independence but also the restrictions on entertainment are two of the most important factors that affect their everyday life. Regarding peritoneal dialysis patients, seven of them reported that the support of family affect their quality of life. Conclusions: The time which patient with chronic renal failure spends in the artificial kidney disease is an essential barrier for a normal life.

  5. Qualitative analysis of Pb liquid sample using laser-induced breakdown spectroscopy (LIBS)

    International Nuclear Information System (INIS)

    Qualitative analysis of liquid sample containing 1,000 ppm of Pb was performed by using LIBS technique. In order to avoid splashing off of the liquid sample during laser irradiation, a sample pretreatment was done, namely the liquid sample was absorbed by using commercial available stomach medicine. Two kinds of absorbent materials were chosen in this experiment, first containing 125 mg activated carbon and second 600 mg activated attapulgite. These absorbent materials were used since carbon sample gives better absorption of infrared laser irradiation used in this experiment. In order to characterize the absorption process, three treatments were conducted in this experiment; first, without heating the sample but varying the absorption time before laser irradiation; second by varying the heating temperature after certain time of absorption process and third by varying the temperature only. The maximum emission intensity of Pb I 405.7 nm was found in the second treatment of heating the sample till 85°C after 30 minutes absorption of the liquid sample in both absorbent materials

  6. On worries, concerns and dangers among spanish population: a qualitative analysis

    International Nuclear Information System (INIS)

    This paper presents qualitative findings on the principal worries, concerns and dangers surrounding risk perception extracted from the Cross-cultural Survey carried out within RISKPERCOM' research project (Risk Perception and Communication). A questionnaire was mailed to a random sample of the Spanish population allowing a study of amplification/attenuation with regard to the tenth anniversary as well as investigating management and communication issues related to radiological matters. The questionnaires were mailed to the adult population from 18 to 75 years of age, where 48.9% males and 51.1 % females. The number of questionnaires obtained for each wave were 490. The response rate was around 69%. At this paper we present the principal concerns, worries and dangers perceived by the Spanish population as identified through three open questions. The items were grouped in different categories; national political situation, economical concern, personal/social concerns, environmental concerns, global concerns... These categories are associated through correspondence analysis to socio-demographical variables as sex, age, education, political orientation an environmental attitude. (authors)

  7. European Citizenship and Youth in Bulgaria: A Qualitative Comparative Analysis between Bulgarians and Bulgarian Turks

    Directory of Open Access Journals (Sweden)

    Gianfranco Brusaporci

    2015-05-01

    Full Text Available European citizenship is a new concept, which has evolved with the process of European integration. Starting from the younger generations, the EU seeks to establish a modern and innovative view of citizenship through three fundamental elements - rights, identity and participation - that could lead to new ways of conceiving the relationship of institutions-citizens and citizenscitizens. The idea of European citizenship tends to overcome the historical idea of national states and national identity. It does this by reinforcing its supranational nature and developing an attitude of tolerance towards diversity and human/minority rights. Thus, to verify the impact European citizenship has on the younger generation in Bulgaria, this research is based on an inter-ethnic sample of 30 interviews (16 Bulgarians, 14 Bulgarian Turks and applies a qualitative comparative analysis method. This research seeks to answer these two main questions: 1 How do young Bulgarians perceive the concept of EU citizenship? 2 How do young Bulgarians perceive the new European citizenship in regard to the inter-ethnic relations in their own country? The study suggests that the EU’s attempt to promote European citizenship is underachieving. On the one hand, young Bulgarian people tend to be well exposed to European citizenship, irrespective of their ethnic belonging. On the other hand, the majority of them are sceptical of the tangible value of European citizenship for the reinforcement of a more encompassing and shared notion of diversity and minority rights.

  8. Qualitative, quantitative and structural analysis of non- coding regions of classical swine fever virus genome

    Institute of Scientific and Technical Information of China (English)

    2001-01-01

    Classical swine fever virus (CSFV) is the pathogen of the swine fever. Understanding of the replication and expression of its genome is the basis for research of the pathogenicity for CSFV and development of antiviral drug. The noncoding regions (NCRs) of CSFV are the main regulatory regions for replication and expression. Qualitative, quantitative and structural analysis of 3′ NCRs and 5′ NCRs was done in order to locate the regulatory region in the NCRs and to character the NCRs. The sites, conserved sequences and structural elements related to the initiation of replication and expression were extracted from 17 3′ NCRs and 56 5′ NCRs. Those cis-elements may be initial recognition sites for replication, binding sites for transcription factors of host cell and interacting sites for initiation of protein synthesis, based on which a mechanism for the replication and expression of CSFV was brought forth. This research offers the direction for further experiment and lays down a basis for the research on hepatitis C virus (HCV), other pestiviruses and plus-strand RNA viruses.

  9. Shockwave treatment for musculoskeletal diseases and bone consolidation: qualitative analysis of the literature.

    Science.gov (United States)

    Kertzman, Paulo; Lenza, Mario; Pedrinelli, André; Ejnisman, Benno

    2015-01-01

    Shockwave treatment is an option within orthopedics. The exact mechanism through which shockwaves function for treating musculoskeletal diseases is unknown. The aim of this study was to make a qualitative analysis on the effectiveness of shockwave treatment among patients with musculoskeletal pathological conditions and pseudarthrosis. Searches were conducted in the Cochrane Library, Medline and Lilacs databases. Thirty-nine studies that reported using shockwave treatment for musculoskeletal diseases were found. Their results varied greatly, as did the types of protocol used. The studies that evaluated the effectiveness of shockwave treatment for lateral epicondylitis, shoulder tendinopathy, knee osteoarthrosis, femoral head osteonecrosis and trochanteric bursitis reported inconsistent results for most of their patients. Those that evaluated patients with calcifying tendinopathy, plantar fasciitis, Achilles tendinopathy, patellar tendinopathy and pseudarthrosis showed benefits. Shockwave treatment is a safe and non-invasive method for chronic cases in which conventional techniques have been unsatisfactory and should be used in association with other treatment methods for tendinopathy. Further quality studies are needed. PMID:26229889

  10. Shockwave treatment for musculoskeletal diseases and bone consolidation: qualitative analysis of the literature

    Directory of Open Access Journals (Sweden)

    Paulo Kertzman

    2015-02-01

    Full Text Available Shockwave treatment is an option within orthopedics. The exact mechanism through which shockwaves function for treating musculoskeletal diseases is unknown. The aim of this study was to make a qualitative analysis on the effectiveness of shockwave treatment among patients with musculoskeletal pathological conditions and pseudarthrosis. Searches were conducted in the Cochrane Library, Medline and Lilacs databases. Thirty-nine studies that reported using shockwave treatment for musculoskeletal diseases were found. Their results varied greatly, as did the types of protocol used. The studies that evaluated the effectiveness of shockwave treatment for lateral epicondylitis, shoulder tendinopathy, knee osteoarthrosis, femoral head osteonecrosis and trochanteric bursitis reported inconsistent results for most of their patients. Those that evaluated patients with calcifying tendinopathy, plantar fasciitis, Achilles tendinopathy, patellar tendinopathy and pseudarthrosis showed benefits. Shockwave treatment is a safe and non-invasive method for chronic cases in which conventional techniques have been unsatisfactory and should be used in association with other treatment methods for tendinopathy. Further quality studies are needed.

  11. A qualitative analysis of New Zealand retailers’ responses to standardised packaging legislation and tobacco industry opposition

    Science.gov (United States)

    Guthrie, John; Hoek, Janet; Darroch, Ella; Wood, Zoë

    2015-01-01

    Objectives Many of the approximately 8000 New Zealand retailers selling tobacco are small stores that tobacco companies have represented as victims of policy measures designed to reduce smoking. Despite this depiction, many retailers experience considerable ambivalence in selling tobacco, a product they know harms their customers. We explored how retailers perceived the proposed introduction of standardised (or ‘plain’) packaging and their assessment of arguments made by tobacco companies in submissions on proposed standardised packaging legislation. Participants Using qualitative in-depth interviews, we recruited and interviewed 23 retailers of dairies (small convenience stores), small supermarkets, and service stations. Analyses Data were analysed using a protocol-driven approach; this stance enabled direct analysis of tobacco companies’ arguments, particularly those purporting to represent retailers’ concerns. Results Retailers were concerned about the financial implications of standardised packaging and the effects it may have on their ability to provide rapid and efficient customer service. However, few thought standardised packaging would foster illicit trade or spawn further regulation; most placed public health goals ahead of tobacco companies’ ‘rights’, and many supported government intervention to protect population health. Conclusions Retailers held ambivalent views on standardised packaging; while they were concerned about short-term effects on their business, they recognised the harm smoking causes. Policymakers and health researchers could collaborate more effectively with retailers by assisting them to create financially viable roles more compatible with public health objectives. PMID:26553840

  12. Qualitative and quantitative analysis of four species of Curcuma rhizomes using twice development thin layer chromatography.

    Science.gov (United States)

    Zhang, J S; Guan, J; Yang, F Q; Liu, H G; Cheng, X J; Li, S P

    2008-11-01

    The rhizomes of Curcuma phaeocaulis, Curcuma kwangsiensis, Curcuma wenyujin and Curcuma longa are used as Ezhu or Jianghuang in traditional Chinese medicine for a long time. Due to their similar morphological characters, it is difficult to distinguish their origins of raw materials used in clinic. In this study, a simple, rapid and reliable twice development TLC method was developed for qualitative and quantitative analysis of the four species of Curcuma rhizomes. The chromatography was performed on silica gel 60F(254) plate with chloroform-methanol-formic acid (80:4:0.8, v/v/v) and petroleum ether-ethyl acetate (90:10, v/v) as mobile phase for twice development. The TLC markers were colorized with 1% vanillin-H(2)SO(4) solution. The four species of Curcuma were easily discriminated based on their characteristic TLC profiles, and simultaneous quantification of eight compounds, including bisdemethoxycurcumin, demethoxycurcumin, curcumine, curcumenol, curcumol, curdione, furanodienone and curzerene, in Curcuma were also performed densitometrically at lambda(scan)=518nm and lambda(reference)=800 nm. The investigated compounds had good linearity (r(2)>0.9905) within test ranges. Therefore, the developed TLC method can be used for quality control of Curcuma rhizomes. PMID:18722068

  13. Development of qualitative and quantitative PCR analysis for meat adulteration from RNA samples.

    Science.gov (United States)

    Cheng, Jai-Hong; Chou, Hsiao-Ting; Lee, Meng-Shiou; Sheu, Shyang-Chwen

    2016-02-01

    Total RNA samples were used to establish qualitative and quantitative PCR-based methods for assessing meat adulteration. The primers were designed based on the mRNA sequences of troponin I (TnI), mitochondrial ribosomal protein (MRP) and tropomodulin genes to distinguish chicken, pork, goat, beef and ostrich. There was no cross reaction between the primers, and the detection limit of the cDNA template was 0.01 and 20 ng in simplex PCR and multiplex PCR, respectively. In the low temperature storage test, the detection limits of cDNA template with 10 and 1 ng were determined at 4 °C and -80 °C. In quantitative assay, the precision of real-time PCR analysis expressed as a coefficient of variation (CV) ranged from 0.25% to 5.24% and the trueness, expressed as an error, ranged from 0.28% to 6.98% for adulteration. Thus, herein, we provided alternative tools for the assessment of meat adulteration using mRNA-based PCR methods. PMID:26304356

  14. Chemical Diversity, Origin, and Analysis of Phycotoxins.

    Science.gov (United States)

    Rasmussen, Silas Anselm; Andersen, Aaron John Christian; Andersen, Nikolaj Gedsted; Nielsen, Kristian Fog; Hansen, Per Juel; Larsen, Thomas Ostenfeld

    2016-03-25

    Microalgae, particularly those from the lineage Dinoflagellata, are very well-known for their ability to produce phycotoxins that may accumulate in the marine food chain and eventually cause poisoning in humans. This includes toxins accumulating in shellfish, such as saxitoxin, okadaic acid, yessotoxins, azaspiracids, brevetoxins, and pinnatoxins. Other toxins, such as ciguatoxins and maitotoxins, accumulate in fish, where, as is the case for the latter compounds, they can be metabolized to even more toxic metabolites. On the other hand, much less is known about the chemical nature of compounds that are toxic to fish, the so-called ichthyotoxins. Despite numerous reports of algal blooms causing massive fish kills worldwide, only a few types of compounds, such as the karlotoxins, have been proven to be true ichthyotoxins. This review will highlight marine microalgae as the source of some of the most complex natural compounds known to mankind, with chemical structures that show no resemblance to what has been characterized from plants, fungi, or bacteria. In addition, it will summarize algal species known to be related to fish-killing blooms, but from which ichthyotoxins are yet to be characterized. PMID:26901085

  15. Qualitative analysis of aphid and primary parasitoid trophic relations of genus Alloxysta (Hymenoptera: Cynipoidea: Figitidae: Charipinae).

    Science.gov (United States)

    Ferrer-Suay, Mar; Janković, Marina; Selfa, Jesús; Van Veen, F J Frank; Tomanović, Željko; Kos, Katarina; Rakhshani, Ehsan; Pujade-Villar, Juli

    2014-12-01

    Charipinae hyperparasitoids affect effectiveness of the primary parasitoids of aphids by decreasing their abundance and modifying their behavior. As a result, increase of aphid populations can cause severe yield losses in some crops. Therefore, ecological studies on the subfamily Charipinae have a great economical and biological importance. Host specificity of these hyperparasitoids is still under debate and for many Charipinae species very little is known about their trophic relations. Here, we give a comprehensive overview of the trophic relationships between the Charipinae species of the genus Alloxysta Förster and their aphid and primary parasitoids hosts, worldwide. Within this subfamily, Alloxysta arcuata (Kieffer), Alloxysta brevis (Thomson), Alloxysta fuscicornis (Hartig), and Alloxysta victrix (Westwood) are the most generalist species sharing many aphid hosts, while for primary parasitoid hosts these are A. arcuata, A. brevis, Alloxysta pleuralis (Cameron), and A. victrix. Alloxysta citripes (Thomson), Alloxysta halterata (Thomson), Alloxysta leunisii (Hartig), and Alloxysta ramulifera (Thomson) appear, up to now, as the most specialized in relation to the primary parasitoid hosts. Primary parasitoids of the genera Aphidius Nees, Lysiphlebus Förster, Praon Haliday, and Trioxys Haliday are the most common hosts for Alloxysta species, and the common host aphid species belong to the genera Aphis L., Uroleucon Mordvilko, Myzus Passerini, and Sitobion Mordvilko. Host range is analyzed for each Alloxysta species, as well as the extent of overlap between them. We used Jaccard's distance and a hierarchical cluster analysis to determine the host range dissimilarity. A permutation test has been applied to analyze if the host range dissimilarity is significantly different from what is expected by chance. We have calculated additional qualitative measures that complement well the Alloxysta niche overlap analysis and evaluated their host specificity using different

  16. Exploratory data analysis groupware for qualitative and quantitative electrophoretic gel analysis over the Internet-WebGel.

    Science.gov (United States)

    Lemkin, P F; Myrick, J M; Lakshmanan, Y; Shue, M J; Patrick, J L; Hornbeck, P V; Thornwal, G C; Partin, A W

    1999-12-01

    Many scientists use quantitative measurements to compare the presence and amount, of various proteins and nucleotides among series of one- and two-dimensional (1-D and 2-D) electrophoretic gels. These gels are often scanned into digital image files. Gel spots are then quantified using stand-alone analysis software. However, as more research collaborations take place over the Internet, it has become useful to share intermediate quantitative data between researchers. This allows research group members to investigate their data and share their work in progress. We developed a World Wide Web group-accessible software system, WebGel, for interactively exploring qualitative and quantitative differences between electrophoretic gels. Such Internet databases are useful for publishing quantitative data and allow other researchers to explore the data with respect to their own research. Because intermediate results of one user may be shared with their collaborators using WebGel, this form of active data-sharing constitutes a groupware method for enhancing collaborative research. Quantitative and image gel data from a stand-alone gel image processing system are copied to a database accessible on the WebGel Web server. These data are then available for analysis by the WebGel database program residing on that server. Visualization is critical for better understanding of the data. WebGel helps organize labeled gel images into montages of corresponding spots as seen in these different gels. Various views of multiple gel images, including sets of spots, normalization spots, labeled spots, segmented gels, etc. may also be displayed. These displays are active and may be used for performing database operations directly on individual protein spots by simply clicking on them. Corresponding regions between sets of gels may be visually analyzed using Flicker-comparison (Electrophoresis 1997, 18, 122-140) as one of the WebGel methods for qualitative analysis. Quantitative exploratory data

  17. A multi-level qualitative analysis of Telehomecare in Ontario: challenges and opportunities

    OpenAIRE

    Hunting, Gemma; Shahid, Nida; Sahakyan, Yeva; Fan, Iris; Moneypenny, Crystal R.; Stanimirovic, Aleksandra; North, Taylor; Petrosyan, Yelena; Krahn, Murray D.; Rac, Valeria E.

    2015-01-01

    Background Despite research demonstrating the potential effectiveness of Telehomecare for people with Chronic Obstructive Pulmonary Disease and Heart Failure, broad-scale comprehensive evaluations are lacking. This article discusses the qualitative component of a mixed-method program evaluation of Telehomecare in Ontario, Canada. The objective of the qualitative component was to explore the multi-level factors and processes which facilitate or impede the implementation and adoption of the pro...

  18. The context of violent disagreements between parents: a qualitative analysis from parents’ reports

    OpenAIRE

    Bair-Merritt, Megan H; Mandal, Mahua; Epstein, Norman B; Werlinich, Carol A; Kerrigan, Deanna

    2014-01-01

    Background Intimate partner violence (IPV) is a prevalent public health problem that affects millions of families. Much of what is known about IPV comes from quantitative studies that often "count" acts of IPV without exploring in depth the circumstances surrounding the violence, thereby leaving critical questions unanswered; existing qualitative studies tend to focus solely on women’s perspectives. There is a dearth of dyadic qualitative research exploring the context of IPV in families with...

  19. A qualitative analysis of immigrant population health practices in the Girona Healthcare Region

    OpenAIRE

    Vall-llosera L; Saurina C; Saez M

    2010-01-01

    Abstract Background The research we present here forms part of a two-phase project - one quantitative and the other qualitative - assessing the use of primary health care services. This paper presents the qualitative phase of said research, which is aimed at ascertaining the needs, beliefs, barriers to access and health practices of the immigrant population in comparison with the native population, as well as the perceptions of healthcare professionals. Moroccan and sub-Saharan were the immig...

  20. The qualitative analysis in the resolution of Physics problems and its influence in the meaningful learning

    OpenAIRE

    Irene Lucero; Sonia Concari; Roberto Pozzo

    2006-01-01

    This is an educational research in the area of Physics teaching. It attends to didactic strategies that favor meaningful learning. The study, centered in problem solving as one of the favorite strategies, analyzes the efficiency of "qualitative problems" to favor meaningful learning, that is revealed through student’s academic performance in a partial test. In the context in which it was developed, a comparative study shows that the preferential use of qualitative problems contributes effecti...

  1. Comparative evaluation of the remineralizing efficacy of calcium sodium phosphosilicate agent and fluoride based on quantitative and qualitative analysis

    Directory of Open Access Journals (Sweden)

    Saranya Mony

    2015-01-01

    Full Text Available Background: Calcium sodium phosphosilicate (NovaMin is an agent that is claimed to release calcium and phosphate ions intraorally to help the self-repair process of enamel. It is used extensively as a desensitizing agent, but the chemical reactions that occur may promote apatite formation enhancing remineralization. The present study was undertaken to evaluate the ability of NovaMin to remineralize an experimentally induced demineralized lesion. The evaluation was done based on the quantitative and qualitative analysis of enamel over the period of 15 and 30 days. Materials and Methods: A sample of 120 noncarious premolar teeth extracted for orthodontic reasons were used for the study. Baseline data for hardness, Ca/PO 4 , and surface characteristics before and after demineralization process was obtained. All the teeth were brushed twice daily at 12 h interval with the test agents using a powered toothbrush for 2 min. The samples were tested on the 15 th and 30 th day. Results: Calcium phosphate ratio and hardness in both the groups improved during the study period. Fluoride group showed higher values for Ca/PO 4 and hardness but was not statistically significant with the P > 0.05. Scanning electron microscope pictures showed that the deposition of the material over the decalcified enamel is more smoother and uniform with NovaMin and more irregular with fluoride. Relevance: NovaMin is found to be as effective in improving the Ca/PO 4 ratio and hardness in a demineralized enamel as fluoride. Hence, it can be a new alternate material for remineralization of enamel with less toxic effects compared to fluorides.

  2. Chemical equilibrium analysis of dry hydrogen combustion

    International Nuclear Information System (INIS)

    The present work is based on a thermo-chemical equilibrium model for studying the effect of combustion of hydrogen during postulated accident scenarios in nuclear reactor containments. This model is based on the method of element potentials which seeks to minimize the free energy of the system. The condition on internal energy balance is imposed as a constraint during the minimization process. Another simplified model purely based on the internal energy balance has also been implemented to investigate the isolated impact of free energy and the conditions under which it becomes dominant. The two models have been used to extract final pressures for a wide range of initial conditions and mixture compositions that are typically found during accident scenarios. In the absence of hydrogen combustion experimental data, such models will become important for laying down a first estimate on the possible outcomes. (author)

  3. Análise qualitativa: teoria, passos e fidedignidade Qualitative analysis: theory, steps and reliability

    Directory of Open Access Journals (Sweden)

    Maria Cecília de Souza Minayo

    2012-03-01

    Full Text Available Neste ensaio busca-se aprofundar a reflexão sobre o processo de análise na pesquisa qualitativa a partir de autores referenciais e da experiência da própria autora. O texto está organizado em forma de decálogo por meio do qual é tratado o tema processualmente. A hipótese é de que uma análise para ser fidedigna precisa conter os termos estruturantes da investigação qualitativa que são os verbos: compreender e interpretar; e os substantivos: experiência, vivência, senso comum e ação social. A seguir a proposta avança por 10 passos que se iniciam na construção científica do objeto pela sua colocação no âmbito do conhecimento nacional e internacional, na elaboração de instrumentos que tornem concretos os conceitos teóricos, na execução de um trabalho de campo que envolva empaticamente o investigador no uso de vários tipos de técnicas e abordagens, tornando-o um construtor de relações, de observações e de uma narrativa em perspectiva. Por fim, a autora trata da análise propriamente dita, mostrando como o objeto, que já vem pensado em todas as etapas anteriores, deve se tornar um construto de segunda ordem, em que predomine a lógica dos atores em sua diversidade e não apenas as suas falas, dentro de uma narrativa teorizada, contextualizada, concisa e clara.This essay seeks to conduct in-depth analysis of qualitative research, based on benchmark authors and the author's own experience. The hypothesis is that in order for an analysis to be considered reliable, it needs to be based on structuring terms of qualitative research, namely the verbs 'comprehend' and 'interpret', and the nouns 'experience', 'common sense' and 'social action'. The 10 steps begin with the construction of the scientific object by its inclusion on the national and international agenda; the development of tools that make the theoretical concepts tangible; conducting field work that involves the researcher empathetically with the participants in

  4. Qualitative Analysis of Bifurcating Solutions in the Lengyel-Epstein Model%RESEARCH ANNOUNCEMENTS Qualitative Analysis of Bifurcating Solutions in the Lengyel-Epstein Model

    Institute of Scientific and Technical Information of China (English)

    张丽娜; 吴建华

    2008-01-01

    @@ One of the most fundamental problems in theoretical biology is to explain the mechanisms by which patterns and forms are created in the living world. In his seminal paper "The Chemical Basis of Morphogenesis",Turing showed that a system of coupled reaction-diffusion equations can be used to describe patterns and forms in biological systems.

  5. Combined Micro-chemical and Micro-structural Analysis of New Minerals Representing Extreme Conditions

    Science.gov (United States)

    Ma, C.; Tschauner, O. D.

    2015-12-01

    Recent improvements in micro-chemical analysis in combination with novel tools for micrometer-scale structural analysis of minerals from synchrotron X-ray diffraction open a pathway towards studies of mineral paragenesis that were previously not or barely accessible. Often mineral assemblies that represent extreme conditions also pose extreme challenges to analysis: very small size scale, complex matrix, minor amounts of material. Examples of such extreme, but also quite relevant environments are: a) High pressure shock-metamorphic minerals in meteorites and terrestrial impact sites, b) inclusions in diamonds from the deep mantle, c) ultrarefractory phases in Ca-Al-inlcusions from the solar nebula, d) presolar condensates. We show how a combination of synchrotron-based structural and semi-quantitative chemical techniques, with electron-microscopy based high-resolution imaging and fully quantitative chemical analysis and qualitative structural identification establish a powerful tool for discovery and characterization of important and interesting new minerals on micron- to submicron size scale.

  6. Chemical aspects of nuclear methods of analysis

    International Nuclear Information System (INIS)

    This final report includes papers which fall into three general areas: development of practical pre-analysis separation techniques, uranium/thorium separation from other elements for analytical and processing operations, and theory and mechanism of separation techniques. A separate abstract was prepared for each of the 9 papers

  7. Arrays in biological and chemical analysis

    DEFF Research Database (Denmark)

    Christensen, Claus Bo Vöge

    2002-01-01

    Recently a dramatic change has happened for biological and biochemical analysis. Originally developed as an academic massive parallel screening tool, industry has caught the idea as well of performing all kinds of assays in the new format of microarrays. From food manufacturers over water supply...

  8. Analysis of blood spots for polyfluoroalkyl chemicals

    International Nuclear Information System (INIS)

    Polyfluoroalkyl chemicals (PFCs) have been detected in humans, in the environment, and in ecosystems around the world. The potential for developmental and reproductive toxicities of some PFCs is of concern especially to children's health. In the United States, a sample of a baby's blood, called a 'dried blood spot' (DBS), is obtained from a heel stick within 48 h of a child's birth. DBS could be useful for assessing prenatal exposure to PFCs. We developed a method based on online solid phase extraction coupled with high performance liquid chromatography-isotope dilution tandem mass spectrometry for measuring four PFCs in DBS, perfluorooctane sulfonate (PFOS), perfluorohexane sulfonate, perfluorooctanoate (PFOA), and perfluorononanoate. The analytical limits of detection using one whole DBS (∼75 μL of blood) were -1. To validate the method, we analyzed 98 DBS collected in May 2007 in the United States. PFOS and PFOA were detected in all DBS at concentrations in the low ng mL-1 range. These data suggest that DBS may be a suitable matrix for assessing perinatal exposure to PFCs, but additional information related to sampling and specimen storage is needed to demonstrate the utility of these measures for assessing exposure.

  9. Isotopes in chemical analysis for water management

    International Nuclear Information System (INIS)

    Surface or underground water circulations and interactions are more and more often studied with the help of geochemistry and more particularly by using isotopic tracers. These isotopic tracer techniques allow, in particular, to define for each system under study, the natural or anthropic origin of the chemical elements, their behaviour, their transport in the different compartments, the circulation schemes of deep fluids and their interaction with the surrounding rocks. This article presents: 1 - the isotopes: definition, measurements and uses (stable and instable isotopes, measurement means, some examples: stable isotopes of the water molecule, boron isotopes, sulfur and oxygen isotopes of sulfates, strontium isotopes, nitrogen isotopes of nitrates); 2 - isotopes and water cycle: atmospheric tracing (rainfall signal at the drainage basin scale and at the country scale, aerosols characterization in urban areas), management of alluvial aquifers, underground waters and origin of nitrogenous contaminations, underground and surface waters in the context of aquifer floods: the case of the Somme basin, underground waters at the basin scale: heterogeneities, interactions and management processes (stable isotopes of the water molecule, S and O isotopes of dissolved sulfates, strontium isotopes); 3 - conclusion. (J.S.)

  10. Shared Decision-Making in Oncology - A Qualitative Analysis of Healthcare Providers' Views on Current Practice.

    Directory of Open Access Journals (Sweden)

    Wiebke Frerichs

    Full Text Available Despite an increased awareness of shared decision-making (SDM and its prominent position on the health policy agenda, its implementation in routine care remains a challenge in Germany. In order to overcome this challenge, it is important to understand healthcare providers' views regarding SDM and to take their perspectives and opinions into account in the development of an implementation program. The present study aimed at exploring a the attitudes of different healthcare providers regarding SDM in oncology and b their experiences with treatment decisions in daily practice.A qualitative study was conducted using focus groups and individual interviews with different healthcare providers at the University Cancer Center Hamburg, Germany. Focus groups and interviews were audio-recorded, transcribed and analyzed using conventional content analysis and descriptive statistics.N = 4 focus groups with a total of N = 25 participants and N = 17 individual interviews were conducted. Attitudes regarding SDM varied greatly between the different participants, especially concerning the definition of SDM, the attitude towards the degree of patient involvement in decision-making and assumptions about when SDM should take place. Experiences on how treatment decisions are currently made varied. Negative experiences included time and structural constraints, and a lack of (multidisciplinary communication. Positive experiences comprised informed patients, involvement of relatives and a good physician-patient relationship.The results show that German healthcare providers in oncology have a range of attitudes that currently function as barriers towards the implementation of SDM. Also, their experiences on how decision-making is currently done reveal difficulties in actively involving patients in decision-making processes. It will be crucial to take these attitudes and experiences seriously and to subsequently disentangle existing misconceptions in future implementation

  11. Towards successful coordination of electronic health record based-referrals: a qualitative analysis

    Directory of Open Access Journals (Sweden)

    Paul Lindsey A

    2011-07-01

    Full Text Available Abstract Background Successful subspecialty referrals require considerable coordination and interactive communication among the primary care provider (PCP, the subspecialist, and the patient, which may be challenging in the outpatient setting. Even when referrals are facilitated by electronic health records (EHRs (i.e., e-referrals, lapses in patient follow-up might occur. Although compelling reasons exist why referral coordination should be improved, little is known about which elements of the complex referral coordination process should be targeted for improvement. Using Okhuysen & Bechky's coordination framework, this paper aims to understand the barriers, facilitators, and suggestions for improving communication and coordination of EHR-based referrals in an integrated healthcare system. Methods We conducted a qualitative study to understand coordination breakdowns related to e-referrals in an integrated healthcare system and examined work-system factors that affect the timely receipt of subspecialty care. We conducted interviews with seven subject matter experts and six focus groups with a total of 30 PCPs and subspecialists at two tertiary care Department of Veterans Affairs (VA medical centers. Using techniques from grounded theory and content analysis, we identified organizational themes that affected the referral process. Results Four themes emerged: lack of an institutional referral policy, lack of standardization in certain referral procedures, ambiguity in roles and responsibilities, and inadequate resources to adapt and respond to referral requests effectively. Marked differences in PCPs' and subspecialists' communication styles and individual mental models of the referral processes likely precluded the development of a shared mental model to facilitate coordination and successful referral completion. Notably, very few barriers related to the EHR were reported. Conclusions Despite facilitating information transfer between PCPs and

  12. Self-performed supragingival biofilm control: qualitative analysis, scientific basis and oral-health implications

    Directory of Open Access Journals (Sweden)

    Sheila Cavalca Cortelli

    2010-01-01

    Full Text Available Patients frequently fail to achieve an optimal mechanical plaque control. However, many patients are not confident about using mouthrinses, and many professionals refuse to prescribe them for regular daily use. Aiming at achieving a better understanding of the use and prescription of mouthrinses in periodontics, 24 dentists with different dental educational levels were purposively chosen and interviewed in a qualitative research. Partial data was presented at the 15th Congress of the Brazilian Association for Oral Health Promotion (ABOPREV, and full data was presented at the 88th General Session and Exhibition of the International Association for Dental Research (IADR. The professionals' answers were confirmed or rejected through scientific data analysis. Additionally, scientifically supported answers were provided for the interviewees' most frequent unanswered questions. Around half of the participants (46% reported that they recommended the use of mouthrinses, although a high percentage (64% of the dentists answered that they knew very little about the efficacy of mouthrinses and also about the oral benefits (54% provided by them. All interviewees reported that they were aware of the fact that their patients, and themselves, failed to floss and, less frequently, to brush their teeth, and all of them believed that oral health impacts overall systemic health. Seventy five percent answered that using mouthrinses was safe. Most participants (55% did not declare themselves as mouthrinse users. We concluded that dentists with different levels of dental education have only partial knowledge related to mouthrinse use in periodontics. The use of effective mouthrinses on a daily basis is justified and can help patients achieve or maintain a healthier mouth. A healthier mouth will positively impact patients' quality of life and could also benefit their overall systemic health.

  13. Self-performed supragingival biofilm control: qualitative analysis, scientific basis and oral-health implications.

    Science.gov (United States)

    Cortelli, Sheila Cavalca; Cortelli, José Roberto; Aquino, Davi Romeiro; Costa, Fernando Oliveira

    2010-01-01

    Patients frequently fail to achieve an optimal mechanical plaque control. However, many patients are not confident about using mouthrinses, and many professionals refuse to prescribe them for regular daily use. Aiming at achieving a better understanding of the use and prescription of mouthrinses in periodontics, 24 dentists with different dental educational levels were purposively chosen and interviewed in a qualitative research. Partial data was presented at the 15th Congress of the Brazilian Association for Oral Health Promotion (ABOPREV), and full data was presented at the 88th General Session and Exhibition of the International Association for Dental Research (IADR). The professionals' answers were confirmed or rejected through scientific data analysis. Additionally, scientifically supported answers were provided for the interviewees' most frequent unanswered questions. Around half of the participants (46%) reported that they recommended the use of mouthrinses, although a high percentage (64%) of the dentists answered that they knew very little about the efficacy of mouthrinses and also about the oral benefits (54%) provided by them. All interviewees reported that they were aware of the fact that their patients, and themselves, failed to floss and, less frequently, to brush their teeth, and all of them believed that oral health impacts overall systemic health. Seventy five percent answered that using mouthrinses was safe. Most participants (55%) did not declare themselves as mouthrinse users. We concluded that dentists with different levels of dental education have only partial knowledge related to mouthrinse use in periodontics. The use of effective mouthrinses on a daily basis is justified and can help patients achieve or maintain a healthier mouth. A healthier mouth will positively impact patients' quality of life and could also benefit their overall systemic health. PMID:20857075

  14. Pathologic analysis of control plans for air pollution management in tehran metropolis: A qualitative study

    Directory of Open Access Journals (Sweden)

    Narges Salehi Shahrabi

    2013-01-01

    Full Text Available Background: Regarding the importance of air pollution issue for large cities, as Tehran metropolis, many plans, programs, projects and regulations have been developed to manage urban air pollution. However, most of them failed to decline the pollution. The purpose of this study is to pathologically analyze air-pollution control plans in order to offer effective solutions for Tehran metropolis. Methods: A qualitative content analysis and a semi-structured interview with 14 practicing professionals were used to identify key causes and sources of Tehran′s air pollution, to recognize challenges and obstacles towards effective performance of air-pollution control plans in this metropolitan area, and to suggest the most effective controlling solutions. Results: Challenges related to air-pollution control plans can be divided into two major categories: Firstly lack of integrated and organized stewardship and secondly those related to political, economical, social and technical environmental abbreviated as PEST, challenges. For effective control of the Tehran air pollution, the following eight controlling alternatives were identified: Systematization of plan preparation process, organizing the stewardship, standardization and utilization of new technologies and professional experts, cultural and infrastructural development, realization of social justice, developing coordination and controlling mechanisms, improving citizen′s participatory capacity, and focusing on effective management of fuel and energy. Conclusions: Controlling air pollution in Tehran should be considered as a priority for policymakers to make enforcements through applying a systemic cycle of preparation effective and comprehensive plans. Further, implement the enforcements and evaluate the environmental impact of the plans through involving all stakeholders.

  15. PROFILE OF ACADEMICALLY BACKWARD STUDENTS AND PROBABLE CONTRIBUTING FACTORS: A QUALITATIVE ANALYSIS

    Directory of Open Access Journals (Sweden)

    Ubhale Ashish

    2014-08-01

    Full Text Available CONTEXT: Academic backwardness exists almost in every institute. In institutes providing professional education, the problem is on higher scale with more seriousness and complications. For the academic backwardness, multiple reasons like financial, family, personal stressors are contemplated. This study is an attempt to recognize the problem areas in these students which will help us to take some preventive measures. AIMS: To find the probable causes of repeated failure in the university examination at an individual, family and institutional level. OBJECTIVES: To find prevalence of psychological morbidity. To identify stressors. To identify the reasons for irregularity. SETTINGS AND DESIGN: Retrospective cohort type of study, done in a Rural Medical college. METHODS AND MATERIAL: Academically backward students identified according to MUHS criteria. Data collection done from previous college records, open ended semi structured proforma with a personal individual interview with GHQ. STATISTICAL ANALYSIS USED: Qualitative research methodology was used. RESULTS: Poor study pattern, poor concentration and time management issues were observed in 45.45%. Poor English comprehension, personal illness, family problems, poor coping in negative stressful emotional life events, boredom in repeating the same subject studies were also noted. Prevalence of depression and anxiety was observed in 40.91%. Substance use was observed in 18.18%.59.1% were found to have more general health problems on GHQ. At family level parental divorce, interpersonal stressors with parents and at institutional level, poor attendance in revision classes and practical’s were noted. CONCLUSIONS: Psychological problems were more prevalent as compared to previously reported studies, which may be attributed to the fact that the study group consisted only of academically backward students.

  16. Qualitative and quantitative analysis of cations and anions using ion selective detectors in capillary electrophoresis

    International Nuclear Information System (INIS)

    The present work reports on the application of ion-selective microelectrodes as potentiometric detectors for the qualitative and quantitative analysis of cations and anions separated by capillary electrophoresis. Due to the high internal resistance of microelectrodes, their potentials are strongly affected by external electrical fields. Therefore, the influence of the electrophoretic field on the electrode response had to be kept at a minimum. With the electrode tip inserted in the capillary aperture (on-column detection), heavy drifts and noise of the signals were observed, mainly because the electrophoretic potential is superimposed on the Nernstian electrode response. As the potential inside the capillary is site-dependent, already minor movements and vibrations not perceptible under the light microscopy cause unacceptable disturbances of the electrode signal. One possibility to solve the problem consists in post- or off-column detection, i.e., with the detector located outside the influence of the electrophoretic field. If quantitative analyses with maximum resolution are to be achieved, only on-column detection is suitable because outside the capillary, the separation efficiency drops drastically. By etching the detector-side capillary end to a conical aperture, the field strength in the last 10 μm fell approximately 1/25 as compared with that in a cylindrical one. Thus, potential drifts and noise were reduced correspondingly so that on-column detection can also be used for potentiometric detection. To obtain quantitative results, the signals of the ion-selective detector were first delogarithmized and then integrated over time. Thus, it was possible to quantify cations and anions with a coefficient of variations ≤5%. (author) figs., tabs., 179 refs

  17. Offshore wind power in Sweden—A qualitative analysis of attitudes with particular focus on opponents

    International Nuclear Information System (INIS)

    The Swedish Parliament has voted for massive expansion of wind power within the next decade. As in many other countries, the establishment of new wind farms has aroused local opposition. This paper contributes to the literature using a qualitative methodology to analyse attitudes towards wind power. In 2007, we carried out in-depth interviews with 40 stakeholders concerned with two planned near-shore farms in Sweden; despite their location, the wind farms' visual impact provoked strong negative attitudes. However, we found no evidence of the NIMBY-syndrome; rather, those opposing the wind farms question wind power more generally, especially vis-à-vis nuclear power. The analysis of attitudes is based on three components: cognition, feeling and action tendency. The results show high consistency between the feeling and cognitive components of attitudes: a negative feeling regarding landscape impact, for example, is accompanied by a belief that wind power is inefficient and unprofitable. However, in many cases the action tendency component is in dissonance with the other two: opponents remain passive despite being against the establishment of new wind farms. These passive opponents represent elements of uncertainty as they may suddenly, at a late stage, turn into active opponents exerting an effect on the decision process. - Highlights: ► Opposition to near-shore wind farms expressed in in-depth interviews is analysed. ► Wind power is viewed as a threat to landscape qualities regardless of proximity. ► Inefficiency and unprofitability are reasons to question wind power establishments. ► Passive opposition is an element of uncertainty that may turn into active opposition. ► Understanding of local response must rest on level of support as well as activity.

  18. The qualitative analysis of biochemical content in textbooks of elementary school

    Directory of Open Access Journals (Sweden)

    K. W.M. Etcheverria et al

    2015-08-01

    Full Text Available Introduction: Biochemistry is the science that deals with the metabolic functions of living beings. In its concepts, it uses chemistry and biology to study the interactions of organisms with the environment. For basic education students is often complex the association of biochemistry with their daily lives, especially in elementary school where they have their first contact with science in school and the didactic book will serve as an important tool for research. Thus, this work aims to analyze qualitatively content related to biochemistry in science books of the final years of elementary school. Methods: We analyzed six science books used in elementary school, and the following criteria were examined: clarity and language presented on the inserted content; resolutions and images shown subtitles, and interdisciplinarity of matters. Results and discussion: The books of the sixth and fifth years were those who achieved the expected learning goals. The first of then made a very good presentation of the content and the images, addressing the subject in an interdisciplinary way. However, the second one is well below in the analyzed criteria, bringing the matter in a vague writing, and failing in associate the content with other assumptions themes. The images had a very low quality and their explanations were difficult to associate. Conclusion: We can say that the biochemistry content are complex, however its development from the beginning of primary education contributes to overcoming the complexity of their understanding. The analysis of the books brought a result that was expected. Only one book had significantly positive results in all analyzed characteristics, the other books had some very good aspects, but in several details, they were vague and poorly contextualized. Approaching the school sciences to the student every day we can demystify scientific knowledge and its production.

  19. Qualitative analysis of stationary Keller-Segel chemotaxis models with logistic growth

    Science.gov (United States)

    Wang, Qi; Yan, Jingda; Gai, Chunyi

    2016-06-01

    We study the stationary Keller-Segel chemotaxis models with logistic cellular growth over a one-dimensional region subject to the Neumann boundary condition. We show that nonconstant solutions emerge in the sense of Turing's instability as the chemotaxis rate {χ} surpasses a threshold number. By taking the chemotaxis rate as the bifurcation parameter, we carry out bifurcation analysis on the system to obtain the explicit formulas of bifurcation values and small amplitude nonconstant positive solutions. Moreover, we show that solutions stay strictly positive in the continuum of each branch. The stabilities of these steady-state solutions are well studied when the creation and degradation rate of the chemical is assumed to be a linear function. Finally, we investigate the asymptotic behaviors of the monotone steady states. We construct solutions with interesting patterns such as a boundary spike when the chemotaxis rate is large enough and/or the cell motility is small.

  20. Controlling the accuracy of chemical analysis

    International Nuclear Information System (INIS)

    Most of the IAEA reference materials are certified in intercomparisons by calculation of the overall mean of reported laboratory mean values. IAEA certification is provided at ''A level'' (satisfactory, or high degree of confidence), or at ''B level'' (acceptable, or reasonable degree of confidence) sampling , storage and preliminary processing, use of reliable analytical methods, internal and external control of accuracy and reliability result in excellent certified reference materials for inorganic, geologic, environmental, biological and other quantitative analysis by means of conventional and nuclear methods. 34 refs, 4 figs, 3 tabs

  1. Chemical form analysis method of particulate nickel compounds

    International Nuclear Information System (INIS)

    Chemical form of nickel is metallic nickel, nickel oxide and nickel ferrite in the PWR primary chemistry condition. The distribution of chemical form depends on Ni/Fe ratio and chemistry condition, especially dissolved hydrogen concentration. Nickel is parent element of Co-58 and the chemical form is important for Co-58 generation. A method of chemical form analysis of nickel has been developed. This method uses the difference in dissolution characteristics of nickel compounds. Metallic nickel and others are separated by nitric acid, and others are divided to nickel oxide and nickel ferrite by oxalic acid. Some cruds in the primary coolant of a PWR were analyzed by using this method. The method is not complex and available at chemical laboratory in a nuclear power plant. (author)

  2. Studies on qualitative and quantitative chemical changes in gamma-irradiated fish and fishery products of India

    International Nuclear Information System (INIS)

    There was an extension of shelf-life of irradiated mackerel (Rastrelliger kanagurta) upto 28 days at ice temperature (0-20C) without any adverse effect on organoleptic attributes. No changes were observed in total lipids and non--saponifiable matter of irradiated fish during storage at 0.20C. The changes in chemical indices including iodine value, peroxide value, thiobarbituric acid value, free fatty acid and glyceride content of irradiated fish samples were similar to that unirradiated ones during storage at 0-20C. Thin-layer and gas-chromatographic studies on lipids did not reveal any detectable new component in irradiated fish samples. A definite suppression in the levels of total volatile basic nitrogen and trimethyl amine nitrogen was observed in irradiated samples compared to that in controls during storage at 0-20C. (author)

  3. The qualitative analysis in the resolution of Physics problems and its influence in the meaningful learning

    Directory of Open Access Journals (Sweden)

    Irene Lucero

    2006-03-01

    Full Text Available This is an educational research in the area of Physics teaching. It attends to didactic strategies that favor meaningful learning. The study, centered in problem solving as one of the favorite strategies, analyzes the efficiency of "qualitative problems" to favor meaningful learning, that is revealed through student’s academic performance in a partial test. In the context in which it was developed, a comparative study shows that the preferential use of qualitative problems contributes effectively to achieve meaningful learning of the involved contents. This fact may be stated as there were more students of the experimental group that approved the partial examination than those of the test group.

  4. Qualitative Analysis Results for Applications of a New Fire Probabilistic Safety Assessment Method to Ulchin Unit 3

    International Nuclear Information System (INIS)

    The fire PRA Implementation Guide has been used for performing a fire PSA for NPPs in Korea. Recently, US NRC and EPRI developed a new fire PSA method, NUREG/CR-6850, to provide state-of-the-art methods, tools, and data for the conduct of a fire PSA for a commercial nuclear power plant (NPP). Due to the limited budget and man powers for the development of KSRP, hybrid PSA approaches, using NUREG/CR-6850 and Fire PRA Implementation Guide, will be employed for conducting a fire PSA of Ulchin Unit 3. In this paper, the qualitative analysis results for applications of a new fire PSA method to Ulchin Unit 3 are presented. This paper introduces the qualitative analysis results for applications of a new fire PSA method to Ulchin Unit 3. Compared with the previous industry, the number of fire areas for quantification identified and the number of equipment selected has increased

  5. Qualitative and quantitative analysis of vetiver essential oils by comprehensive two-dimensional gas chromatography and comprehensive two-dimensional gas chromatography/mass spectrometry.

    Science.gov (United States)

    Filippi, Jean-Jacques; Belhassen, Emilie; Baldovini, Nicolas; Brevard, Hugues; Meierhenrich, Uwe J

    2013-05-01

    Vetiver essential oils (VEO) are important raw ingredients used in perfume industry, entering the formula of numerous modern fragrances. Vetiver oils are considered to be among the most complex essential oils, resulting most of the time in highly coeluted chromatograms whatever the analytical technique. In this context, conventional gas chromatography has failed to provide a routine tool for the accurate qualitative and quantitative analysis of their constituents. Applying comprehensive two-dimensional gas chromatography techniques (GC×GC-FID/MS) afforded the mean to separate efficiently vetiver oil constituents in order to identify them in a more reliable way. Moreover, this is the first time that a complete true quantitation of each constituent is carried out on such complex oils by means of internal calibration. Finally, we have studied the influence of the injection mode on the determined chemical composition, and showed that several alcohols underwent dehydration under defined chromatographic conditions (splitless mode) usually recommended for quantitation purposes. PMID:23522261

  6. Quantitative and Qualitative Analysis of Phenolic and Flavonoid Content in Moringa oleifera Lam and Ocimum tenuiflorum L.

    OpenAIRE

    Sangeeta Sankhalkar; Vrunda Vernekar

    2016-01-01

    Background: Number of secondary compounds is produced by plants as natural antioxidants. Moringa oleifera Lam. and Ocimum tenuiflorum L. are known for their wide applications in food and pharmaceutical industry. Objective: To compare phenolic and flavonoid content in M. oleifera Lam and O. tenuiflorum L. by quantitative and qualitative analysis. Materials and Methods: Phenolic and flavonoid content were studied spectrophotometrically and by paper chromatography in M. oleifera Lam. and O. tenu...

  7. Exploring Explanations for Local Reductions in Teenage Pregnancy Rates in England: An Approach Using Qualitative Comparative Analysis

    OpenAIRE

    BLACKMAN, TIM

    2012-01-01

    Teenage pregnancy rates in the UK are high compared with many other countries but there is marked variation across local areas, including those with high deprivation. This study uses the method of Qualitative Comparative Analysis to identify conditions associated with the presence or absence of a narrowing gap in teenage pregnancy rates as measured by the differences between deprived local authority areas and the national average. A higher proportion of black and minority ethnic groups in the...

  8. Contrast-enhanced ultrasonography in qualitative diagnosis of sentinel lymph node metastasis in breast cancer: A meta-analysis

    OpenAIRE

    Yi-Xia Zhang; Xue-Mei Wang; Shu Kang; Xiang Li; Jing Geng

    2015-01-01

    Aim: This meta-analysis aims to determine the accuracy of contrast-enhanced ultrasonography (CEUS) in the qualitative diagnosis of metastatic sentinel lymph node (SLN) for patients with breast cancer. Materials and Methods: We screened PubMed, Embase, Web of Science, Cochrane Library, CISCOM, CINAHL, Google Scholar, CBM, and CNKI databases. All analyses were calculated using the STATA software, version 12.0 (Stata Corp, College Station, TX, USA). We calculated the summary statistics for se...

  9. Factors Supporting and Inhibiting Adherence to HIV Medication Regimen in Women: A Qualitative Analysis of Patient Interviews

    OpenAIRE

    Fagbami, Oluwakemi; Oluwasanjo, Adetokunbo; Fitzpatrick, Carrie; Fairchild, Rebecca; Shin, Ann; Donato, Anthony

    2015-01-01

    Adherence to antiretroviral therapy reduces morbidity and mortality; however rates of non-adherence are variable among women for unclear reasons. This study was a single-center qualitative analysis of interviews with 18 female HIV-positive non-adherent patients (defined by virologic failure) to explore psychosocial factors impacting adherence. Factors identified were categorized as promoting, inhibiting or having no effect on adherence. Three themes, characterized as social factors, illness f...

  10. Qualitative analysis of red imported fire ant nests constructed in silica gel

    Science.gov (United States)

    Red imported fire ants, Solenopsis invicta Buren, build nests by excavating soil. Incorporation of ant-derived chemicals in nesting material has long been known, however only a few chemicals have been identified. This paucity of identified ant-derived chemicals may be due to the interference from ...

  11. Airborne chemistry: acoustic levitation in chemical analysis.

    Science.gov (United States)

    Santesson, Sabina; Nilsson, Staffan

    2004-04-01

    This review with 60 references describes a unique path to miniaturisation, that is, the use of acoustic levitation in analytical and bioanalytical chemistry applications. Levitation of small volumes of sample by means of a levitation technique can be used as a way to avoid solid walls around the sample, thus circumventing the main problem of miniaturisation, the unfavourable surface-to-volume ratio. Different techniques for sample levitation have been developed and improved. Of the levitation techniques described, acoustic or ultrasonic levitation fulfils all requirements for analytical chemistry applications. This technique has previously been used to study properties of molten materials and the equilibrium shape()and stability of liquid drops. Temperature and mass transfer in levitated drops have also been described, as have crystallisation and microgravity applications. The airborne analytical system described here is equipped with different and exchangeable remote detection systems. The levitated drops are normally in the 100 nL-2 microL volume range and additions to the levitated drop can be made in the pL-volume range. The use of levitated drops in analytical and bioanalytical chemistry offers several benefits. Several remote detection systems are compatible with acoustic levitation, including fluorescence imaging detection, right angle light scattering, Raman spectroscopy, and X-ray diffraction. Applications include liquid/liquid extractions, solvent exchange, analyte enrichment, single-cell analysis, cell-cell communication studies, precipitation screening of proteins to establish nucleation conditions, and crystallisation of proteins and pharmaceuticals. PMID:14762640

  12. In-vitro qualitative and quantitative analysis of certain nutraceuticals as diuretic and antioxidant for hepatobiliary disorders (HBD

    Directory of Open Access Journals (Sweden)

    M. SARAVANAN

    2014-12-01

    Full Text Available Nutraceuticals are plant, dietary/food and animal origin, safe and eco friendly, its having potent curative and preventing certain diseases conditions. Hence, the study was commenced with the objectives of an in-vitro qualitative and quantitative analysis of certain nutraceuticals as diuretic and antioxidant potential for HBD. Different parts (leaves, root, stem, seeds and whole plant of plants viz. Phyllanthus niruri, Solanum nigrum, Boerhavia diffusa, Eclipta alba, Macrotyloma uniflorum, Tinospora cordifolia and Murraya koenigii were collected and aqueous, ethanolic and 50% ethanolic extract was prepared. In-vitro qualitative phytochemical screening of different herbal extracts showed best in 50% ethanolic extracts of Murraya koenigii leaves, Eclipta alba whole plant, Phyllanthus niruri whole plant, Solanum nigrum whole plant, Macrotyloma uniflorum seeds, and Boerhavia diffusa whole plant. In-vitro quantitative analysis 50% ethanolic extracts of Murraya koenigii leaves, Eclipta alba whole plant, Phyllanthus niruri whole plant, Solanum nigrum whole plant, Macrotyloma uniflorum seeds, and Boerhavia diffusa whole plant. 50% ethanolic extracts of Phyllanthus niruri whole plant and Eclipta alba whole plant followed by Murraya koenigii leaves, Macrotyloma uniflorum seed and Boerhavia diffusa whole plant were noticed better diuretic and antioxidant property by In-vitro qualitative and quantitative phytochemical analysis. Hence, the study was concluded that the combination or mixture of these extracts with appropriate proportion could have good diuretic and antioxidant potentials against hepatobiliary disorders.

  13. Let Our Voices Be Heard: Qualitative Analysis of an Internet Discussion Board

    Science.gov (United States)

    de Vries, Sabina Remmers; Valadez, Albert A.

    2008-01-01

    This article addresses an online discussion board referencing a domestic violence related murder trial. Findings from qualitative analyses based on narrative and grounded theory suggest that online discussion boards can help survivors of domestic violence to tell their stories and support each other. The perceived anonymity of Internet discussion…

  14. Qualitative Analysis of Animation versus Reading for Pre-Class Preparation in a "Flipped" Classroom

    Science.gov (United States)

    Persky, Adam M.

    2015-01-01

    The "flipped" classroom model, including such approaches as team-based learning (TBL), stresses pre-class preparation. For three years in a pharmacokinetics course within a pharmacy curriculum, students had the choice of using reading material or a fully animated module to prepare for class. Qualitative methods were used to analyze…

  15. School Uniforms: A Qualitative Analysis of Aims and Accomplishments at Two Christian Schools

    Science.gov (United States)

    Firmin, Michael; Smith, Suzanne; Perry, Lynsey

    2006-01-01

    Employing rigorous qualitative research methodology, we studied the implementation of two schools' uniform policies. Their primary intents were to eliminate competition, teach young people to dress appropriately, decrease nonacademic distractions, and lower the parental clothing costs. The young people differed with adults regarding whether or not…

  16. An Analysis of the Qualitative Characteristics of Management Commentary Reporting by New Zealand Companies

    Directory of Open Access Journals (Sweden)

    Bikram Chatterjee

    2011-12-01

    Full Text Available The narrative section of annual reports has considerable value to its user groups, such as financial analysts and investors (Barlett & Chandler 1997; International Accounting Standards Board (IASB 2006; Tiexiera 2004. This narrative section including chirpersons’/presidents’ statement contains twice the quantity ofinformation than the financial statements section (Smith & Taffler 2000. However, the abundance of information does not necessarily enhance the quality of such information (IASB 2006. This issue ofqualitative characteristics has been long foregone by researchers. This issue has attracted the attention of IASB (2006. Following the dearth in research in regard to qualitative characteristics of reporting this paper explores whether investors’ required qualitative characteristics as outlined by the IASB (2006 have beensatisfied in the management commentary section of New Zealand companies’ annual reports. Our result suggests that the principal stakeholders’, that is, investors’ qualitative characteristics requirements have been partially met in this section of annual reports. The qualitative characteristic of ‘relevance’ and ‘supportability’ have been satisfied in more annual reports compared to that of ‘balance’ and ‘comparability’.

  17. A Qualitative Analysis of Loneliness Dynamics Involved with College Long-Distance Relationships

    Science.gov (United States)

    Firmin, Michael W.; Firmin, Ruth L.; Lorenzen, Kailee

    2014-01-01

    The present phenomenological, qualitative research study involved in-depth interviews of all 16 female, sophomore students involved in respective distance relationships at a private, selective, comprehensive, Midwest university. Among other results found in the study, the present article specifically addressed the loneliness dynamics involved with…

  18. A Qualitative Analysis of Distributed Leadership and Teacher Perspective of Principal Leadership Effectiveness

    Science.gov (United States)

    Lizotte, Jane O'Connor

    2013-01-01

    In recent years, expectations for schools have increased to the point where they are now expected to ensure that "all" students are learning at high levels. This is a daunting, complex, and ambitious aspiration that requires leadership beyond that provided by the principal. The purpose of this qualitative study was to analyze…

  19. Barriers to Employment as Experienced by Disabled People: A Qualitative Analysis in Calgary and Regina, Canada

    Science.gov (United States)

    Shier, Michael; Graham, John R.; Jones, Marion E.

    2009-01-01

    Public policies stress greater inclusion of disabled people in the labour market and suggest ways to implement accommodative measures to these ends. Often missing from this literature is the experiences of disabled people in labour markets. This article reports results from a qualitative study conducted in 2005 and 2006 consisting of one-to-one…

  20. A Qualitative Analysis of Imitation Performances of Preschoolers with Down Syndrome

    Science.gov (United States)

    Vanvuchelen, Marleen

    2016-01-01

    A number of studies suggest that imitation is a characteristic strength in children with Down Syndrome (DS). The present study aims to discover whether imitation performances are qualitatively phenotypical in DS. Eight preschoolers with DS were matched on chronological, mental, language and imitation age with 8 preschoolers with intellectual…

  1. A Qualitative Analysis of General Receptive Vocabulary of Adolescents with Down Syndrome

    Science.gov (United States)

    Facon, Bruno; Nuchadee, Marie-Laure; Bollengier, Therese

    2012-01-01

    This study aimed to discover whether general receptive vocabulary is qualitatively phenotypical in Down syndrome. Sixty-two participants with Down syndrome (M age = 16.74 years, SD = 3.28) were individually matched on general vocabulary raw total score with 62 participants with intellectual disability of undifferentiated etiology (M age = 16.20…

  2. Qualitative and quantitative analysis of complex temperature-programmed desorption data by multivariate curve resolution

    Science.gov (United States)

    Rodríguez-Reyes, Juan Carlos F.; Teplyakov, Andrew V.; Brown, Steven D.

    2010-10-01

    The substantial amount of information carried in temperature-programmed desorption (TPD) experiments is often difficult to mine due to the occurrence of competing reaction pathways that produce compounds with similar mass spectrometric features. Multivariate curve resolution (MCR) is introduced as a tool capable of overcoming this problem by mathematically detecting spectral variations and correlations between several m/z traces, which is later translated into the extraction of the cracking pattern and the desorption profile for each desorbate. Different from the elegant (though complex) methods currently available to analyze TPD data, MCR analysis is applicable even when no information regarding the specific surface reaction/desorption process or the nature of the desorbing species is available. However, when available, any information can be used as constraints that guide the outcome, increasing the accuracy of the resolution. This approach is especially valuable when the compounds desorbing are different from what would be expected based on a chemical intuition, when the cracking pattern of the model test compound is difficult or impossible to obtain (because it could be unstable or very rare), and when knowing major components desorbing from the surface could in more traditional methods actually bias the quantification of minor components. The enhanced level of understanding of thermal processes achieved through MCR analysis is demonstrated by analyzing three phenomena: i) the cryogenic desorption of vinyltrimethylsilane from silicon, an introductory system where the known multilayer and monolayer components are resolved; ii) acrolein hydrogenation on a bimetallic Pt-Ni-Pt catalyst, where a rapid identification of hydrogenated products as well as other desorbing species is achieved, and iii) the thermal reaction of Ti[N(CH 3) 2] 4 on Si(100), where the products of surface decomposition are identified and an estimation of the surface composition after the

  3. Appendix C. Collection of Samples for Chemical Agent Analysis

    Energy Technology Data Exchange (ETDEWEB)

    Koester, C; Thompson, C; Doerr, T; Scripsick, R

    2005-09-23

    This chapter describes procedures for the collection and analysis of samples of various matrices for the purpose of determining the presence of chemical agents in a civilian setting. This appendix is intended to provide the reader with sufficient information to make informed decisions about the sampling and analysis process and to suggest analytical strategies that might be implemented by the scientists performing sampling and analysis. This appendix is not intended to be used as a standard operating procedure to provide detailed instructions as to how trained scientists should handle samples. Chemical agents can be classified by their physical and chemical properties. Table 1 lists the chemical agents considered by this report. In selecting sampling and analysis methods, we have considered procedures proposed by the Organization for Prohibition of Chemical Weapons (OPCW), the U. S. Environmental Protection Agency (EPA), and peer-reviewed scientific literature. EPA analytical methods are good resources describing issues of quality assurance with respect to chain-of-custody, sample handling, and quality control requirements.

  4. Qualitative and quantitative analysis of environmental damages through instauration and registers of lawful documents

    Directory of Open Access Journals (Sweden)

    Roberta Hehl de Sylos Cintra

    2006-11-01

    Full Text Available A qualitative and quantitative analysis of the environmental damages occurrences was conducted through the lawful documents established for charging at the State Prosecution Service of São Carlos city, State of São Paulo, during 1991 - 2000, to understand the relationship between environmental problems and the current development actions. The environmental damage identified were grouped into nine classes, where deforestation was prevailing in each year along the period of study. Of the total number of deforestation occurrences, 180 was related to areas smaller than 5 ha. It corresponded to 110.35 ha of the total deforested area. The other 37 were associated with areas higher than 5 ha, equivalent to 1,013.27 ha. The registers of environmental damages in the period in a rough estimate, corresponded to a mediam loss of 5.91 ± 4.14 ha/occurrence and of 112.36 ± 91.73 ha/year of deforested area.Foi realizada a análise qualitativa e quantitativa das ocorrências de danos ambientais através dos instrumentos jurídicos instaurados pelo Ministério Público Estadual da cidade de São Carlos, SP, para a compreensão da interação entre os problemas ambientais e as ações desenvolvimentistas na paisagem local. no período de 1991-2000. Os danos ambientais foram agrupados em nove classes, sendo desmatamento o de maior ocorrência em cada ano e ao longo do período de estudo. Cerca de 180 ocorrências de desmatamento estão relacionadas com áreas menores que 5 ha, com predomínio da atuação de Pessoas Físicas, correspondendo a 110,35 ha de área desmatada no período. As 37 ocorrências restantes estão associadas com áreas maiores que 5 ha, totalizando 1.013,27 ha de área desmatada. Em uma estimativa grosseira estes valores correspondem às perdas médias de 5,91 ± 4,14 ha/ocorrência e de 112,36 ± 91,73 ha/ano de área desmatada.

  5. Malnutrition in elder care: qualitative analysis of ethical perceptions of politicians and civil servants

    Directory of Open Access Journals (Sweden)

    Kihlgren Mona

    2010-06-01

    Full Text Available Abstract Background Few studies have paid attention to ethical responsibility related to malnutrition in elder care. The aim was to illuminate whether politicians and civil servants reason about malnutrition in elder care in relation to ethical responsibility, and further about possible causes and how to address them. Method Eighteen elected politicians and appointed civil servants at the municipality and county council level from two counties in Sweden were interviewed. They worked at a planning, control and executive level, with responsibility for both the elder care budget and quality of care. Qualitative method was used for the data analysis. Results Two themes emerged from their reasoning about malnutrition related to ethical responsibility. The theme assumed role involves the subthemes quality of care and costs, competent staff and govern at a distance. Old and ill patients were mentioned as being at risk for malnutrition. Caregivers were expected to be knowledgeable and stated primary responsible for providing adequate nutritional care. Extended physician responsibility was requested owing to patients' illnesses. Little was reported on the local management's role or on their own follow-up routines. The theme moral perception includes the subthemes discomfort, trust and distrust. Feelings of discomfort concerned caregivers having to work in a hurried, task-oriented manner. Trust meant that they believed for the most part that caregivers had the competence to deal appropriately with nutritional care, but they felt distrust when nutritional problems reappeared on their agenda. No differences could be seen between the politicians and civil servants. Conclusion New knowledge about malnutrition in elder care related to ethical responsibility was illuminated by persons holding top positions. Malnutrition was stressed as an important dimension of the elder care quality. Governing at a distance meant having trust in the staff, on the one hand, and

  6. Parent and child interactions with two contrasting anti-obesity advertising campaigns: a qualitative analysis

    Science.gov (United States)

    2014-01-01

    Background Social marketing has been proposed as a framework that may be effectively used to encourage behaviour change relating to obesity. Social advertising (or mass media campaigning) is the most commonly used social marketing strategy to address the issue of obesity. While social advertising has the potential to effectively communicate information about obesity, some argue that the current framing and delivery of these campaigns are ineffective, and may cause more harm than good. Methods We used a qualitative advertising reception study. 150 family groups (comprised of 159 parents and 184 children) were shown two Australian government anti-obesity advertisements: Measure Up (focused on problems associated with obesity) and Swap It (focused on solutions for obesity). Families were engaged in a discussion about the visual appeals, verbal messages and their perceptions about the impact of the advertisements on behavioural change. Open coding techniques and a constant comparative method of analysis was used to interpret the data. Results Many parents had strong personal resonance with the visual imagery within the campaigns. While Swap It had strong ‘likeability’ with children, many children believed that the messages about overweight and obesity were less personally relevant because they did not perceive themselves to be overweight. The content and delivery style of the verbal messages (the serious risk focused message in Measure Up compared to the upbeat, fun practical message in Swap It) influenced how different audiences (parents and children) interpreted the information that was presented. Parents assimilated practical and instructive messages, while children assimilated messages about weight loss and weight gain. Parents and children recognised that the campaigns were asking individuals to take personal responsibility for their weight status, and were at times critical that the campaigns did not tackle the broader issues associated with the causes and

  7. Qualitative Analysis of Diagnostic Value of 24-h Proteinuria for Preeclampsia

    Directory of Open Access Journals (Sweden)

    Xu Zhuang

    2015-01-01

    Full Text Available Background: Preeclampsia (PE is a serious idiopathic disease posing a threat to both mothers and fetuses′ lives during pregnancy, whose main diagnostic criteria include hypertension with proteinuria. However, American College of Obstetricians and Gynecologists (ACOG updated the diagnostic criteria for PE and reduced the diagnostic value of proteinuria for patients with PE. Qualitative analysis of the diagnostic value of 24-h proteinuria for patients with PE in China was conducted to evaluate the diagnostic criteria value in the latest ACOG guideline. Methods: Complete clinical data of 65 patients with hypertensive disorder in pregnancy (HDP were collected. All patients were delivered to and hospitalized in Renji Hospital. Adverse outcome was defined in case of the emergence of any serious complication for a mother or the fetus. A retrospective study was conducted according to ACOG guideline, to analyze the relationship between each diagnostic criteria of ACOG guideline and maternal and perinatal outcomes. Spearman correlation test was used to detect the association between each diagnostic criterion, its corresponding value, and the adverse pregnancy outcome. Logistic regression was performed to verify the result of Spearman correlation test. Results: Of 65 HDP patients, the percentage of adverse pregnancy outcome was 63.1%. Adverse pregnancy outcomes constitute diversification. There were 55 cases with 24-h proteinuria value ≥0.3 g, of which the adverse outcome rate was 74.5%. While adverse pregnancy outcomes did not appear in the rest 10 HDP patients with proteinuria <0.3 g/24 h. The statistic difference was significant (P = 0.000. However, no significant difference was found in other criteria groups (impaired liver function: P = 0.417; renal insufficiency: P = 0.194; thrombocytopenia: P = 0.079; and cerebral or visual symptoms: P = 0.296. The correlation coefficient between 24-h proteinuria ≥0.3 g and adverse pregnancy outcomes was 0

  8. From qualitative data to quantitative models: analysis of the phage shock protein stress response in Escherichia coli

    Directory of Open Access Journals (Sweden)

    Jovanovic Goran

    2011-05-01

    Full Text Available Abstract Background Bacteria have evolved a rich set of mechanisms for sensing and adapting to adverse conditions in their environment. These are crucial for their survival, which requires them to react to extracellular stresses such as heat shock, ethanol treatment or phage infection. Here we focus on studying the phage shock protein (Psp stress response in Escherichia coli induced by a phage infection or other damage to the bacterial membrane. This system has not yet been theoretically modelled or analysed in silico. Results We develop a model of the Psp response system, and illustrate how such models can be constructed and analyzed in light of available sparse and qualitative information in order to generate novel biological hypotheses about their dynamical behaviour. We analyze this model using tools from Petri-net theory and study its dynamical range that is consistent with currently available knowledge by conditioning model parameters on the available data in an approximate Bayesian computation (ABC framework. Within this ABC approach we analyze stochastic and deterministic dynamics. This analysis allows us to identify different types of behaviour and these mechanistic insights can in turn be used to design new, more detailed and time-resolved experiments. Conclusions We have developed the first mechanistic model of the Psp response in E. coli. This model allows us to predict the possible qualitative stochastic and deterministic dynamic behaviours of key molecular players in the stress response. Our inferential approach can be applied to stress response and signalling systems more generally: in the ABC framework we can condition mathematical models on qualitative data in order to delimit e.g. parameter ranges or the qualitative system dynamics in light of available end-point or qualitative information.

  9. Terahertz Chemical Analysis of Exhaled Human Breath - Broad Essay of Chemicals

    Science.gov (United States)

    Branco, Daniela R.; Fosnight, Alyssa M.; Thomas, Jessica R.; Medvedev, Ivan R.

    2013-06-01

    Approximately 3000 chemicals are thought to be present in human breath. Of these chemicals, many are considered typical of exhaled air. Yet, others can allude to different disease pathologies. The detection of chemicals in breath could have many practical purposes in medicine and provide a noninvasive means of diagnostics. We have previously reported on detection of ethanol, methanol, and acetone in exhaled human breath using a novel sub-millimeter/THz spectroscopic approach. This paper reports on our most recent study. A tentative list has been made of approximately 20 chemicals previously found in breath using other methods. Though many of these chemicals are only expressed in samples from donors with certain pathologies, at the time of this submission we are able to detect and quantitatively measure acetaldehyde and dimethyl sulfide in the breath of several healthy donors. Additional tentatively identified chemicals have been seen using this approach. This presentation will explain our experimental procedures and present our most recent results in THz breath analysis. Prospects, challenges and future plans will be outlined and discussed.

  10. Use of qualitative and quantitative information in neural networks for assessing agricultural chemical contamination of domestic wells

    Science.gov (United States)

    Mishra, A.; Ray, C.; Kolpin, D.W.

    2004-01-01

    A neural network analysis of agrichemical occurrence in groundwater was conducted using data from a pilot study of 192 small-diameter drilled and driven wells and 115 dug and bored wells in Illinois, a regional reconnaissance network of 303 wells across 12 Midwestern states, and a study of 687 domestic wells across Iowa. Potential factors contributing to well contamination (e.g., depth to aquifer material, well depth, and distance to cropland) were investigated. These contributing factors were available in either numeric (actual or categorical) or descriptive (yes or no) format. A method was devised to use the numeric and descriptive values simultaneously. Training of the network was conducted using a standard backpropagation algorithm. Approximately 15% of the data was used for testing. Analysis indicated that training error was quite low for most data. Testing results indicated that it was possible to predict the contamination potential of a well with pesticides. However, predicting the actual level of contamination was more difficult. For pesticide occurrence in drilled and driven wells, the network predictions were good. The performance of the network was poorer for predicting nitrate occurrence in dug and bored wells. Although the data set for Iowa was large, the prediction ability of the trained network was poor, due to descriptive or categorical input parameters, compared with smaller data sets such as that for Illinois, which contained more numeric information.

  11. Getting More Value from the LibQUAL+® Survey: The Merits of Qualitative Analysis and Importance-Satisfaction Matrices in Assessing Library Patron Comments

    Science.gov (United States)

    Detlor, Brian; Ball, Kathryn

    2015-01-01

    This paper examines the merit of conducting a qualitative analysis of LibQUAL+® survey comments as a means of leveraging quantitative LibQUAL+ results, and using importance-satisfaction matrices to present and assess qualitative findings. Comments collected from the authors' institution's LibQUAL+ survey were analyzed using a codebook based on…

  12. Gradient Bundle Analysis: A Full Topological Approach to Chemical Bonding

    CERN Document Server

    Morgenstern, Amanda

    2016-01-01

    The "chemical bond" is a central concept in molecular sciences, but there is no consensus as to what a bond actually is. Therefore, a variety of bonding models have been developed, each defining the structure of molecules in a different manner with the goal of explaining and predicting chemical properties. This thesis describes the initial development of gradient bundle analysis (GBA), a chemical bonding model that creates a high resolution picture of chemical interactions within the charge density framework. GBA is based on concepts from the quantum theory of atoms in molecules (QTAIM), but uses a more complete picture of the topology and geometry of the electron charge density to understand and predict bonding interactions. Gradient bundles are defined as volumes bounded by zero-flux surfaces (ZFSs) in the gradient of the charge density with well-defined energies. The structure of gradient bundles provides an avenue for detecting the locations of valence electrons, which correspond to reactive regions in a ...

  13. Surface chemical composition analysis of heat-treated bamboo

    Science.gov (United States)

    Meng, Fan-dan; Yu, Yang-lun; Zhang, Ya-mei; Yu, Wen-ji; Gao, Jian-min

    2016-05-01

    In this study, the effect of heat treatment on the chemical composition of bamboo slivers was studied. The chemical properties of the samples were examined by chemical analysis. Results showed a decrease in the contents of holocellulose and α-cellulose, as well as an increase in the contents of lignin and extractives. Changes in the chemical structure of bamboo components were analyzed by Fourier transform infrared spectroscopy (FTIR) and X-ray photoelectron spectroscopy (XPS). FTIR spectroscopy results indicated that hemicellulose contents decrease, whereas lignin contents increase after heat treatment. Ester formation linked to lignin decreased the hygroscopicity of the bamboo samples and consequently improved their dimensional stability and durability. XPS spectroscopy results showed that hemicelluloses and celluloses are relatively more sensitive to the heating process than lignin. As a consequence, hemicellulose and cellulose contents decreased, whereas lignin contents increased during heat treatment. The results obtained in this study provide useful information for the future utilization of heat-treated bamboo.

  14. Qualitative analysis of cosmological models in Brans-Dicke theory, solutions from non-minimal coupling and viscous universe

    International Nuclear Information System (INIS)

    Using dynamical system theory we investigate homogeneous and isotropic models in Brans-Dicke theory for perfect fluids with general equation of state and arbitrary ω. Phase diagrams are drawn on the Poincare sphere which permits a qualitative analysis of the models. Based on this analysis we construct a method for generating classes of solutions in Brans-Dicke theory. The same technique is used for studying models arising from non-minimal coupling of electromagnetism with gravity. In addition, viscous fluids are considered and non-singular solutions with bulk viscosity are found. (author)

  15. Situated knowledge of pathogenic landscapes in Ghana: Understanding the emergence of Buruli ulcer through qualitative analysis.

    Science.gov (United States)

    Tschakert, Petra; Ricciardi, Vincent; Smithwick, Erica; Machado, Mario; Ferring, David; Hausermann, Heidi; Bug, Leah

    2016-02-01

    Successfully addressing neglected tropical diseases requires nuanced understandings of pathogenic landscapes that incorporate situated, contexualized community knowledge. In the case of Buruli ulcer (BU), the role of social science is vital to investigate complex human-environment interactions and navigate different ways of knowing. We analyze a set of qualitative data from our interdisciplinary project on BU in Ghana, drawing from participatory mapping, focus group discussions, semi-structured interviews, and open-ended survey questions to explore how people in endemic and non-endemic areas see themselves embedded in changing environmental and social landscapes. We pay particular attention to landscape disturbance through logging and small-scale alluvial gold mining. The results from our participatory research underscore the holistic nature of BU emergence in landscapes, encapsulated in partial and incomplete local descriptions, the relevance of collective learning to distill complexity, and the potential of rich qualitative data to inform quantitative landscape-disease models. PMID:26761375

  16. Plasmatic and thermographic consequences of local acute irradiation; a qualitative and quantitative analysis in the pig

    International Nuclear Information System (INIS)

    Acute phase reactant proteins associated with thermographic measurements and enzymatic activity assays in plasma were carried out on 39 pigs, following local exposure of the thigh to a collimated source of iridium 192 at doses ranging between 30 and 84 Gy (2 cm depth dose). The inflammatory response after irradiation, from day 1 to day 30 was accompanied by plasma protein changes associated with an elevation of local and general temperatures in irradiated animals. Degenerative processes in muscle led to an increase of plasmatic creatine kinase and lactate-dehydrogenase. Results were developed qualitatively (distribution pattern of proteins, thermographic measurements, enzymatic activities and clinical evolution of the lesions) and qualitatively (plasma level of creatine kinase versus applied radiation doses and pharmalogical treatments)

  17. Primary care nurses struggle with lifestyle counseling in diabetes care: a qualitative analysis.

    OpenAIRE

    Elwyn Glyn; van der Weijden Trudy; Braspenning Jozé; Jansink Renate; Grol Richard

    2010-01-01

    Abstract Background Patient outcomes are poorly affected by lifestyle advice in general practice. Promoting lifestyle behavior change require that nurses shift from simple advice giving to a more counseling-based approach. The current study examines which barriers nurses encounter in lifestyle counseling to patients with type 2 diabetes. Based on this information we will develop an implementation strategy to improve lifestyle behavior change in general practice. Method In a qualitative semi-s...

  18. Cognitive emotional consequences of male infertility in their female partners: a qualitative content analysis

    OpenAIRE

    Karimi, Fatemeh Zahra; Taghipour, Ali; Roudsari, Robab Latifnejad; Kimiaei, Seyed Ali; Mazlom, Seyed Reza; Amirian, Maliheh

    2015-01-01

    Introduction Infertility, as a global phenomenon and one of the most important issues of reproductive health, affects women more often than men, even when the infertility is due to a male factor. The purpose of this study was to explore the cognitive emotional experiences of women faced with male infertility. Methods This qualitative study was conducted in 2014–2015 in Mashhad, Iran. The perceptions and experiences of healthy women whose husbands were diagnosed with primary male factor infert...

  19. Parent-Child Collaborative Decision Making for the Management of Chronic Illness: A Qualitative Analysis

    OpenAIRE

    Miller, Victoria A.

    2009-01-01

    Parent-child collaborative decision making (CDM) is a potentially important precursor to full decision making independence and may be particularly significant for the management of childhood chronic illnesses. The primary aim of this qualitative study was to explore the concept of CDM from the perspective of children and parents. Children (ages 8-19 years) with asthma, type 1 diabetes, or cystic fibrosis and parents of children with these illnesses participated in focus groups and individual ...

  20. A Qualitative Content Analysis of Spirituality and Religiosity amongst Greek COPD Patients

    OpenAIRE

    Efthymios Tzounis; Theodora Kerenidi; Zoe Daniil; Chryssi Hatzoglou; Evangelia Kotrotsiou; Konstantinos Gourgoulianis

    2016-01-01

    Chronic Obstructive Pulmonary Disease (COPD) is a chronic and common disease throughout the world. Spiritual/religious beliefs are often central to patients with serious illnesses and could serve as a resource for coping with such illnesses. A qualitative methodology was chosen in order to gain a thorough understanding of 75 (male n = 69, 92%, female n = 6, 8%) Greek COPD patients’ perceptions of spirituality and religiosity and explore the importance of practicing their beliefs while 25 pati...

  1. Analysis on Indonesian Sustainable Palm Oil (ISPO):A Qualitative Assessment the Success Factors for ISPO

    OpenAIRE

    Dina Harsono; M. Achmad Chozin; Anas M. Fauzi

    2012-01-01

    ISPO (Indonesian Sustainable Palm Oil) serves as the baseline of sustainability standards for palm oil industry and is expected to improve the competitive advantage of Indonesian palm oil industry. ISPO was introduced by the government in March 2011 and currently most of plantations are in process of applying ISPO. The objective of this research is to analyze success factors affecting implementation of ISPO. Using qualitative method of in-depth interview on 20 selected experts representing ac...

  2. Qualitative and quantitative analysis of palmar dermatoglyphics among smokeless tobacco users

    OpenAIRE

    Athreya Vijayaraghavan; Nalini Aswath

    2015-01-01

    Context: Palm prints formed once does not change throughout life and is not influenced by environment. Palmar Dermatoglyphics can indicate the development of potentially malignant and malignant lesions and help in identifying persons at high risk of developing Oral submucous fibrosis (OSMF) and Oral squamous cell carcinoma (OSSC). Aim: To analyze the qualitative [finger ridge pattern and presence or absence of hypothenar pattern] and quantitative [mean ATD angle and total AB ridge count] v...

  3. Qualitative analysis of mental health service users’ reported experiences of discrimination

    OpenAIRE

    Hamilton, S; Pinfold, V; Cotney, J.; Couperthwaite, L.; Matthews, J.; Barret, K.; Warren, S.; Corker, E.; Rose, D.; Thornicroft, G; Henderson, C.

    2016-01-01

    Objective: To better understand mental health service users’ experiences of stigma and discrimination in different settings. Method: An annual telephone survey of people with a mental health diagnosis conducted to evaluate the Time to Change antistigma campaign in England. Of 985 people who participated in 2013, 84 took part in a qualitative interview which was audio recorded. Of these, 50 interviews were transcribed and thematically analysed to explore accounts of discrimination. We analysed...

  4. National Cyber Security Policy and Strategy of Nigeria: A Qualitative Analysis

    OpenAIRE

    Osho, Oluwafemi; Onoja, Agada D.

    2015-01-01

    Abstract With advancements in modernization came the infiltration of information and communication technologies across the world, Nigeria inclusive. Several benefits are obtainable from these but also prevalent are some associated risks. Communication exists massively in cyberspace and as such poses a myriad of threats to a nation. This can be addressed on a national spectrum by the implementation of cyber security policies and strategies. This research involves making a qualitative analys...

  5. The psychological benefits of watching popular films : a qualitative analysis / Juan van Wyk

    OpenAIRE

    Van Wyk, Juan

    2004-01-01

    The aim of this research was to explore the subjective psychological benefits of watching popular films. A secondary aim was to explore whether age, gender, frequency of watching popular films and different film genres play a role in the experience of psychological benefits. The research was an exploratory, qualitative survey. An availability sample consisting of 50 participants from a small university town in rural South Africa , took part. A self-compiled questionnaire was us...

  6. A Qualitative Analysis of the Experience of Caring for an Individual with an Eating Disorder

    OpenAIRE

    Ajulo, Anna Frances

    2013-01-01

    The thesis sought to explore the experience of caring for an individual with an eating disorder. It is comprised of three standalone papers. Paper one and two have been prepared for submission to a journal and in accordance with the journal guidelines. Paper one is a systematic literature review synthesising qualitative studies relating to the experience and impact of caring for, or living with an individual with an eating disorder. Databases were systematically searched and twenty studies we...

  7. Qualitative and Quantitative Analysis of the Market – A Factor for Competitive Advantage of Enterprises

    OpenAIRE

    Karolina Ilieska

    2005-01-01

    The goal of the market analyses is to define accurately the needs, motives and the behavior of the customers so that it can determine the product requests and services if there are any, as well as their quantity. The qualitative methods for data collecting give out an inaccurate vision for the structure and the significance of the information referring to the motives and habits of the purchase.Quantitative methods research the appearances from the quantitative point of view. The quantitative ...

  8. Self-performed supragingival biofilm control: qualitative analysis, scientific basis and oral-health implications

    OpenAIRE

    Sheila Cavalca Cortelli; José Roberto Cortelli; Davi Romeiro Aquino; Fernando Oliveira Costa

    2010-01-01

    Patients frequently fail to achieve an optimal mechanical plaque control. However, many patients are not confident about using mouthrinses, and many professionals refuse to prescribe them for regular daily use. Aiming at achieving a better understanding of the use and prescription of mouthrinses in periodontics, 24 dentists with different dental educational levels were purposively chosen and interviewed in a qualitative research. Partial data was presented at the 15th Congress of the Brazilia...

  9. A qualitative analysis of a randomized controlled trial comparing a cognitive-behavioral treatment with education

    OpenAIRE

    Day, Melissa A; Thorn, Beverly E.; Kapoor, Shweta

    2011-01-01

    Cognitive Behavioral Therapy (CBT) is a widely accepted psychosocial treatment for chronic pain. However, the efficacy of CBT has not been investigated within a rural setting. Furthermore, few studies have utilized first-person accounts to qualitatively investigate the key treatment elements and processes of change underlying the well-documented quantitative improvements associated with CBT. To address these gaps, we conducted a randomized controlled trial (RCT) investigating the efficacy of ...

  10. Qualitative and Quantitative Analysis for Facial Complexion in Traditional Chinese Medicine

    OpenAIRE

    Changbo Zhao; Guo-zheng Li; Fufeng Li; Zhi Wang; Chang Liu

    2014-01-01

    Facial diagnosis is an important and very intuitive diagnostic method in Traditional Chinese Medicine (TCM). However, due to its qualitative and experience-based subjective property, traditional facial diagnosis has a certain limitation in clinical medicine. The computerized inspection method provides classification models to recognize facial complexion (including color and gloss). However, the previous works only study the classification problems of facial complexion, which is considered as ...

  11. Perceived Benefits of Yoga among Urban School Students: A Qualitative Analysis

    OpenAIRE

    Donna Wang; Marshall Hagins

    2016-01-01

    This study reports on the findings of a qualitative evaluation of a yoga intervention program for urban middle and high school youth in New York City public and charter schools. Six focus groups were conducted with students who participated in a year-long yoga program to determine their perceptions of mental and physical benefits as well as barriers and challenges. Results show that students perceived the benefits of yoga as increased self-regulation, mindfulness, self-esteem, physical condit...

  12. Qualitative and quantitative analysis of reconstructed images using projections with noises

    International Nuclear Information System (INIS)

    The reconstruction of a two-dimencional image from one-dimensional projections in an analytic algorithm ''convolution method'' is simulated on a microcomputer. In this work it was analysed the effects caused in the reconstructed image in function of the number of projections and noise level added to the projection data. Qualitative and quantitative (distortion and image noise) comparison were done with the original image and the reconstructed images. (author)

  13. Searching for proteins of subspecies with diagnostic potential by comparative qualitative proteomic analysis of mycobacterial tuberculins

    OpenAIRE

    Santema, Wiebren; Overdijk, Marije; Barends, Judith; Krijgsveld, Jeroen; Rutten, Victor; Koets, Ad

    2009-01-01

    Abstract Accurate immunodiagnosis of bovine paratuberculosis is among others hampered by the lack of specific antigens. One of the most frequently used antigen preparations is purified protein derivative (PPD), also known as tuberculin. This crude extract has limitations when used in diagnostic assays due to the presence of cross-reactive antigens. The aim of the current study was to systematically analyze the qualitative protein composition of PPD of the major mycobacterial pathog...

  14. Method for fractional solid-waste sampling and chemical analysis

    DEFF Research Database (Denmark)

    Riber, Christian; Rodushkin, I.; Spliid, Henrik;

    2007-01-01

    Chemical characterization of solid waste is a demanding task due to the heterogeneity of the waste. This article describes how 45 material fractions hand-sorted from Danish household waste were subsampled and prepared for chemical analysis of 61 substances. All material fractions were subject to...... repeated particle-size reduction, mixing, and mass reduction until a sufficiently small but representative sample was obtained for digestion prior to chemical analysis. The waste-fraction samples were digested according to their properties for maximum recognition of all the studied substances. By combining...... four subsampling methods and five digestion methods, paying attention to the heterogeneity and the material characteristics of the waste fractions, it was possible to determine 61 substances with low detection limits, reasonable variance, and high accuracy. For most of the substances of environmental...

  15. The Impact of Flow Injection on Modern Chemical Analysis

    DEFF Research Database (Denmark)

    Hansen, Elo Harald

    There is no doubt that Flow Injection Analysis (FIA) has had a profound impact on the ways and means that modern analytical chemical procedures are performed. This is amply reflected in the voluminous scientific literature, which by the middle of 2004 passed more than 14,500 FIA-publications in...

  16. Bark chemical analysis explains selective bark damage by rodents

    Czech Academy of Sciences Publication Activity Database

    Heroldová, Marta; Jánová, Eva; Suchomel, J.; Purchart, L.; Homolka, Miloslav

    2009-01-01

    Roč. 2, č. 2 (2009), s. 137-140. ISSN 1803-2451 R&D Projects: GA MZe QH72075 Institutional research plan: CEZ:AV0Z60930519 Keywords : bark damage * bark selection * bark chemical analysis * rowan * beech * spruce * mountain forest regeneration Subject RIV: GK - Forest ry

  17. Integrated polymer waveguides for absorbance detection in chemical analysis systems

    DEFF Research Database (Denmark)

    Mogensen, Klaus Bo; El-Ali, Jamil; Wolff, Anders;

    2003-01-01

    A chemical analysis system for absorbance detection with integrated polymer waveguides is reported for the first time. The fabrication procedure relies on structuring of a single layer of the photoresist SU-8, so both the microfluidic channel network and the optical components, which include planar...

  18. CHEMICAL ANALYSIS OF DENSE-GAS EXTRACTS FROM LIME FLOWERS

    Directory of Open Access Journals (Sweden)

    Demyanenko DV

    2015-04-01

    Full Text Available The purpose of this work was to make qualitative and quantitative analysis of phenolic biologically active substances (BAS in the extracts produced from lime flowers with condensed gases, using method of high-performance liquid chromatography (HPLC. Materials and methods: materials for this study were the extracts obtained by consequent processing of the herbal drug and marcs thereof with various condensed gases: difluorochloromethane (Freon R22, difluoromethane (Freon R32, azeotropic mixture of difluoromethane with pentafluoroethane (Freon 410A and freon-ammonium mixture. Extracts obtained with the latter were subjected to further fractionation by liquidliquid separation into hexane, chloroform, ethyl acetate and aqueous-alcohol phases. Besides, the supercritical СО2 extract, obtained from the herbal drug under rather strong conditions (at temperature 60°С and pressure 400 bar, was studied in our previous research. Presence of phenolic BAS and their quantity in the researched samples were determined by method of HPLC with UVspectrometric detection. Results and discussion: It has been found that Freon R22 extracted trace amounts of rutin from lime flowers – its content was only 0.08% of the total extract weight. On the other hand, Freons R32 and R410А showed good selectivity to moderately polar BAS of lime flowers (derivatives of flavonoids and hydroxycinnamic acids: in particular, the extract obtained with freon R32 contained about 1.3% of the total phenolic substances, and it was the only one of the investigated condensed gases used by us which took the basic flavonoid of lime flowers tiliroside – its content was 0.42% of extract weight. Also Freons R32 and R410А were able to withdraw another compound dominating among phenolic substances in the yielded extracts. Its quantity was rather noticeable – up to 0.87% of extract weight. This substance was not identified by existing database, but its UV-spectrum was similar to those of

  19. Qualitative Analysis of Diagnostic Value of 24-h Proteinuria for Preeclampsia

    Institute of Scientific and Technical Information of China (English)

    Xu Zhuang; Yun-Yan Chen; Qiong Zhou; Jian-Hua Lin

    2015-01-01

    Background: Preeclampsia (PE) is a serious idiopathic disease posing a threat to both mothers and fetuses' lives during pregnancy, whose main diagnostic criteria include hypertension with proteinuria.However, American College of Obstetricians and Gynecologists (ACOG) updated the diagnostic criteria for PE and reduced the diagnostic value of proteinuria for patients with PE.Qualitative analysis of the diagnostic value of 24-h proteinuria for patients with PE in China was conducted to evaluate the diagnostic criteria value in the latest ACOG guideline.Methods: Complete clinical data of 65 patients with hypertensive disorder in pregnancy (HDP) were collected.All patients were delivered to and hospitalized in Renji Hospital.Adverse outcome was defined in case of the emergence of any serious complication for a mother or the fetus.A retrospective study was conducted according to ACOG guideline, to analyze the relationship between each diagnostic criteria of ACOG guideline and maternal and perinatal outcomes.Spearman correlation test was used to detect the association between each diagnostic criterion, its corresponding value, and the adverse pregnancy outcome.Logistic regression was performed to verify the result of Spearman correlation test.Results: Of 65 HDP patients, the percentage of adverse pregnancy outcome was 63.1%.Adverse pregnancy outcomes constitute diversification.There were 55 cases with 24-h proteinuria value ≥0.3 g, of which the adverse outcome rate was 74.5%.While adverse pregnancy outcomes did not appear in the rest 10 HDP patients with proteinuria <0.3 g/24 h.The statistic difference was significant (P =0.000).However, no significant difference was found in other criteria groups (impaired liver function: P =0.417;renal insufficiency: P =0.194;thrombocytopenia: P =0.079;and cerebral or visual symptoms: P =0.296).The correlation coefficient between 24-h proteinuria ≥0.3 g and adverse pregnancy outcomes was 0.557 (P < 0.005).Impaired liver

  20. Oxygen distribution in tumors: A qualitative analysis and modeling study providing a novel Monte Carlo approach

    Energy Technology Data Exchange (ETDEWEB)

    Lagerlöf, Jakob H., E-mail: Jakob@radfys.gu.se [Department of Radiation Physics, Göteborg University, Göteborg 41345 (Sweden); Kindblom, Jon [Department of Oncology, Sahlgrenska University Hospital, Göteborg 41345 (Sweden); Bernhardt, Peter [Department of Radiation Physics, Göteborg University, Göteborg 41345, Sweden and Department of Nuclear Medicine, Sahlgrenska University Hospital, Göteborg 41345 (Sweden)

    2014-09-15

    truncated in the lower end, due to anoxia, but smaller tumors showed undisturbed oxygen distributions. The six different models with correlated parameters generated three classes of oxygen distributions. The first was a hypothetical, negative covariance between vessel proximity and pO{sub 2} (VPO-C scenario); the second was a hypothetical positive covariance between vessel proximity and pO{sub 2} (VPO+C scenario); and the third was the hypothesis of no correlation between vessel proximity and pO{sub 2} (UP scenario). The VPO-C scenario produced a distinctly different oxygen distribution than the two other scenarios. The shape of the VPO-C scenario was similar to that of the nonvariable DOC model, and the larger the tumor, the greater the similarity between the two models. For all simulations, the mean oxygen tension decreased and the hypoxic fraction increased with tumor size. The absorbed dose required for definitive tumor control was highest for the VPO+C scenario, followed by the UP and VPO-C scenarios. Conclusions: A novel MC algorithm was presented which simulated oxygen distributions and radiation response for various biological parameter values. The analysis showed that the VPO-C scenario generated a clearly different oxygen distribution from the VPO+C scenario; the former exhibited a lower hypoxic fraction and higher radiosensitivity. In future studies, this modeling approach might be valuable for qualitative analyses of factors that affect oxygen distribution as well as analyses of specific experimental and clinical situations.

  1. Oxygen distribution in tumors: A qualitative analysis and modeling study providing a novel Monte Carlo approach

    International Nuclear Information System (INIS)

    to anoxia, but smaller tumors showed undisturbed oxygen distributions. The six different models with correlated parameters generated three classes of oxygen distributions. The first was a hypothetical, negative covariance between vessel proximity and pO2 (VPO-C scenario); the second was a hypothetical positive covariance between vessel proximity and pO2 (VPO+C scenario); and the third was the hypothesis of no correlation between vessel proximity and pO2 (UP scenario). The VPO-C scenario produced a distinctly different oxygen distribution than the two other scenarios. The shape of the VPO-C scenario was similar to that of the nonvariable DOC model, and the larger the tumor, the greater the similarity between the two models. For all simulations, the mean oxygen tension decreased and the hypoxic fraction increased with tumor size. The absorbed dose required for definitive tumor control was highest for the VPO+C scenario, followed by the UP and VPO-C scenarios. Conclusions: A novel MC algorithm was presented which simulated oxygen distributions and radiation response for various biological parameter values. The analysis showed that the VPO-C scenario generated a clearly different oxygen distribution from the VPO+C scenario; the former exhibited a lower hypoxic fraction and higher radiosensitivity. In future studies, this modeling approach might be valuable for qualitative analyses of factors that affect oxygen distribution as well as analyses of specific experimental and clinical situations

  2. A chemical profiling strategy for semi-quantitative analysis of flavonoids in Ginkgo extracts.

    Science.gov (United States)

    Yang, Jing; Wang, An-Qi; Li, Xue-Jing; Fan, Xue; Yin, Shan-Shan; Lan, Ke

    2016-05-10

    Flavonoids analysis in herbal products is challenged by their vast chemical diversity. This work aimed to develop a chemical profiling strategy for the semi-quantification of flavonoids using extracts of Ginkgo biloba L. (EGB) as an example. The strategy was based on the principle that flavonoids in EGB have an almost equivalent molecular absorption coefficient at a fixed wavelength. As a result, the molecular-contents of flavonoids were able to be semi-quantitatively determined by the molecular-concentration calibration curves of common standards and recalculated as the mass-contents with the characterized molecular weight (MW). Twenty batches of EGB were subjected to HPLC-UV/DAD/MS fingerprinting analysis to test the feasibility and reliability of this strategy. The flavonoid peaks were distinguished from the other peaks with principle component analysis and Pearson correlation analysis of the normalized UV spectrometric dataset. Each flavonoid peak was subsequently tentatively identified by the MS data to ascertain their MW. It was highlighted that the flavonoids absorption at Band-II (240-280 nm) was more suitable for the semi-quantification purpose because of the less variation compared to that at Band-I (300-380 nm). The semi-quantification was therefore conducted at 254 nm. Beyond the qualitative comparison results acquired by common chemical profiling techniques, the semi-quantitative approach presented the detailed compositional information of flavonoids in EGB and demonstrated how the adulteration of one batch was achieved. The developed strategy was believed to be useful for the advanced analysis of herbal extracts with a high flavonoid content without laborious identification and isolation of individual components. PMID:26907698

  3. Qualitative analysis of parents′ experience of hearing loss of their school going children of a rural area of Nagpur

    Directory of Open Access Journals (Sweden)

    Subhash B Thakre

    2012-01-01

    Full Text Available Introduction: Qualitative research methods provide a means of collecting and interpreting narrative or observational data about such interactions, leading to a deeper understanding of the process of health care delivery. This approach was used to clarify key themes from parents′ comments about challenges on paths to detect hearing impairment. Materials and Methods: An exploratory descriptive qualitative research design is used. In-depth interviews by using a semi-structured questionnaire and focus group discussions (FGD were held with parents, and other study groups. A study was conducted in Deaf Dum Rural School, Saoner, Nagpur district, Maharashtra, India. Purposive voluntary sampling is utilized. Semi-structured and in-depth interviews and FGD were conducted in private rooms. A FGD guide covered open-ended comments to the set of questions. Results: Parents of 65 children (59% replied to the questionnaire. Out of them, 55 (85.6% were the parents of school children resides in the hostel. The majority of the children have profound hearing impairment (75.86%. Theme analysis revealed perceptions about causes, ways, and means of early detection, and powerful emotions experienced by parents at FGD. Conclusions: Reaching beyond numerical analyses, qualitative studies allow for expression of junior doctors, Deaf and Dump School teacher and parents′ thoughts, feelings, and experiences. This study provides a means of collecting and interpreting narrative or observational data.

  4. Trends in Indian Patent Filing in Chemical Sciences: An Analysis

    Directory of Open Access Journals (Sweden)

    N.B. Dahibhate,

    2012-05-01

    Full Text Available The paper analyses the trends in Indian patents filed in the area of chemical sciences during 1995 to2008. It highlights the importance of patent literature in scientific developments and global trends in patentfilings. A result of Indian patent filing analysis indicated that filing in India is increasing in the past few yearsand many public and private organisations are filing patents in India and in other countries for protecting theinventions. Among India patent filing activities, chemical and pharmaceutical sciences are the prominent areas.Individual inventors and assignees from private and public organisations are filing patents, but in India, Councilof Scientific & Industrial Research (CSIR is leading patent filer.

  5. An Extended Algorithm of Flexibility Analysis in Chemical Engineering Processes

    Institute of Scientific and Technical Information of China (English)

    2001-01-01

    An extended algorithm of flexibility analysis with a local adjusting method for flexibility region of chemical processes, which is based on the active constraint strategy, is proposed, which fully exploits the flexibility region of the process system operation. The hyperrectangular flexibility region determined by the extended algorithm is larger than that calculated by the previous algorithms. The limitation of the proposed algorithm due to imperfect convexity and its corresponding verification measure are also discussed. Both numerical and actual chemical process examples are presented to demonstrate the effectiveness of the new algorithm.

  6. Development and application of a two-tier multiple choice diagnostic instrument to assess high school students' understanding of inorganic chemistry qualitative analysis

    Science.gov (United States)

    Tan, Kim Chwee Daniel; Khang Goh, Ngoh; Sai Chia, Lian; Treagust, David F.

    2002-04-01

    This article describes the development and application of a two-tier multiple choice diagnostic instrument to assess high school students' understanding of inorganic chemistry qualitative analysis. The development of the diagnostic instrument was guided by the framework outlined by Treagust. The instrument was administered to 915 Grade 10 students (15 to 17 years old) from 11 schools after they had learned the theory involved in qualitative analysis and after a series of qualitative analysis practical sessions. The Cronbach alpha reliability of the instrument was .68, the facility indices ranged from .17 to .48, and the discrimination indices ranged from .20 to .53. The study showed that the Grade 10 students had difficulty understanding the reactions involved in the identification of cations and anions, for example, double decomposition reactions, the formation and reaction of complex salts, and thermal decomposition. The findings of the study and literature on practical work were used to develop a qualitative analysis teaching package.

  7. On Baltic Slovenia and Adriatic Lithuania. A qualitative comparative analysis of patterns in post-communist transformation / Lars Fredrik Stöcker

    Index Scriptorium Estoniae

    Stöcker, Lars Fredrik, 1979-

    2014-01-01

    Arvustus: Norkus, Zenonas. On Baltic Slovenia and Adriatic Lithuania. A qualitative comparative analysis of patterns in post-communist transformation. Verlag Apostrofia Publishers, Central European University Press. Budapest und New York 2012

  8. A Qualitative Analysis of the Retention and Recruitment of Rural General Practitioners in Australia

    OpenAIRE

    Abhaya Kamalakanthan; Sukhan Jackson

    2008-01-01

    Australian estimates of the doctor-to-population ratios for the cities, regional and remote areas seem to exceed the 0.71:1,000 benchmark ratio of the Commonwealth Department of Health and Ageing. However, statistics are misleading because they do not account for the time and distance involved to see a doctor in the less densely populated rural and remote areas. This is a qualitative study of the problem of retention and recruitment of rural doctors. In 2006-08, 13 in-depth structured intervi...

  9. Qualitative analysis of the right - left scattering asymmetry in ? low-energy collisions

    Science.gov (United States)

    Dashevskaya, E. I.; Nikitin, E. E.; Perales, F.; Baudon, J.

    1997-02-01

    The experimental results on the right - left scattering asymmetry of helicopter-polarized 0953-4075/30/3/023/img8 atoms, either in state 0953-4075/30/3/023/img9 or 0953-4075/30/3/023/img10 colliding with Ar, are presented and qualitatively interpreted in the framework of the sudden-locking model. It is shown that this model provides a simple description of key features of the cross section difference and the relation between it and the total cross section for scattering of unpolarized atoms.

  10. Analysis of Water Conflicts across Natural and Societal Boundaries: Integration of Quantitative Modeling and Qualitative Reasoning

    Science.gov (United States)

    Gao, Y.; Balaram, P.; Islam, S.

    2009-12-01

    Water issues and problems have bewildered humankind for a long time yet a systematic approach for understanding such issues remain elusive. This is partly because many water-related problems are framed from a contested terrain in which many actors (individuals, communities, businesses, NGOs, states, and countries) compete to protect their own and often conflicting interests. We argue that origin of many water problems may be understood as a dynamic consequence of competition, interconnections, and feedback among variables in the Natural and Societal Systems (NSSs). Within the natural system, we recognize that triple constraints on water- water quantity (Q), water quality (P), and ecosystem (E)- and their interdependencies and feedback may lead to conflicts. Such inherent and multifaceted constraints of the natural water system are exacerbated often at the societal boundaries. Within the societal system, interdependencies and feedback among values and norms (V), economy (C), and governance (G) interact in various ways to create intractable contextual differences. The observation that natural and societal systems are linked is not novel. Our argument here, however, is that rigid disciplinary boundaries between these two domains will not produce solutions to the water problems we are facing today. The knowledge needed to address water problems need to go beyond scientific assessment in which societal variables (C, G, and V) are treated as exogenous or largely ignored, and policy research that does not consider the impact of natural variables (E, P, and Q) and that coupling among them. Consequently, traditional quantitative methods alone are not appropriate to address the dynamics of water conflicts, because we cannot quantify the societal variables and the exact mathematical relationships among the variables are not fully known. On the other hand, conventional qualitative study in societal domain has mainly been in the form of individual case studies and therefore

  11. On Qualitative Analysis of Delay Systems and $x^ = f (t, x, x^)$ on Time Scales

    Indian Academy of Sciences (India)

    Yajun Ma; Yu Zhang; Jitao Sun

    2010-04-01

    Here we solve two problems presented in paper [9] (C C Tisdell and A Zaidi, Basic qualitative and quantitative results for solutions to nonlinear, dynamic equations on time scales with an application to economic modelling, Nonlinear Anal. 68 (2008) 3504–3524). We study existence and uniqueness of solutions for delay systems and first-order dynamic equations of the form $x^=f(t,x,x^)$ on time scales by using the Banach’s fixed-point theorem. Some examples are presented to illustrate the efficiency of the proposed results.

  12. THE BACKGROUND OF PROFESSIONAL JUDGMENT OF MATERIALTY IN STATUTORY AUDIT BASED ON QUALITATIVE FACTORS ANALYSIS

    Directory of Open Access Journals (Sweden)

    Pop Atanasiu

    2010-07-01

    Full Text Available The assessment of a significant ascertainment made by the auditor is particularly sensitive which shapes the quality of a mission as a whole. Materiality plays a primary role in determining the relevance of information provided by the users of financial statements. This material highlights the role of qualitative factors in determining materiality, as far as many practitioners are accustomed to consider this item only in terms of quantitative factors. Although legislation does not set precise rules in determining materiality, the issue is necessary because decisions of the auditors and users of audited information hang on this item.

  13. Chemical Cytometry: Fluorescence-Based Single-Cell Analysis

    Science.gov (United States)

    Cohen, Daniella; Dickerson, Jane A.; Whitmore, Colin D.; Turner, Emily H.; Palcic, Monica M.; Hindsgaul, Ole; Dovichi, Norman J.

    2008-07-01

    Cytometry deals with the analysis of the composition of single cells. Flow and image cytometry employ antibody-based stains to characterize a handful of components in single cells. Chemical cytometry, in contrast, employs a suite of powerful analytical tools to characterize a large number of components. Tools have been developed to characterize nucleic acids, proteins, and metabolites in single cells. Whereas nucleic acid analysis employs powerful polymerase chain reaction-based amplification techniques, protein and metabolite analysis tends to employ capillary electrophoresis separation and ultrasensitive laser-induced fluorescence detection. It is now possible to detect yoctomole amounts of many analytes in single cells.

  14. A qualitative analysis of job burnout in eating disorder treatment providers.

    Science.gov (United States)

    Warren, Cortney S; Schafer, Kerri J; Crowley, Mary Ellen; Olivardia, Roberto

    2012-01-01

    Although job burnout is common in mental health care settings, almost no research has examined burnout in eating disorder treatment providers. Using qualitative methodology, this study examined a) perceived contributors of burnout, b) efforts to manage burnout, and c) recommendations for avoiding burnout in a sample of professional eating disorder treatment providers. Recruited via professional organizations, 298 participants completed an online questionnaire designed by the authors. Qualitative responses were coded and grouped into themes. Results indicated that almost all participants worried about their patients' health, which frequently resulted in negative affect (e.g., anxiety, sadness). The most frequently cited contributors to burnout were common characteristics of eating pathology (e.g., chronicity, relapse, symptom severity); patient characteristics (e.g., personality conflict); work-related factors (e.g., time demands); and, financial issues (e.g., inadequate compensation). To avoid burnout, over 90% of participants engaged in self-care behaviors (e.g., exercise, social support). Early-career practitioners were encouraged to utilize supervision, create a work/life balance, engage in self-care, and limit caseloads. These results suggest that supervision and training of eating disorder treatment providers should include burnout management. PMID:22519896

  15. Women's Behavioral Responses to the Threat of a Hypothetical Date Rape Stimulus: A Qualitative Analysis.

    Science.gov (United States)

    Anderson, RaeAnn E; Brouwer, Amanda M; Wendorf, Angela R; Cahill, Shawn P

    2016-05-01

    One in four college women experience sexual assault on campus; yet, campuses rarely provide the in-depth self-defense programs needed to reduce sexual assault risk. Further, little is known about the range of possible behaviors elicited by sexual assault threat stimuli besides assertion. To fill this gap, the aim of the current study was to explore qualitative themes in women's intended behavioral responses to a hypothetical sexual assault threat, date rape, by using a laboratory-controlled threat. College women (N = 139) were randomly assigned to one of four different levels of sexual assault threat presented via an audio-recorded vignette. Participants articulated how they would hypothetically respond to the experimentally assigned threat. Responses were blinded and analyzed using Consensual Qualitative Research methodology. Six major themes emerged: assertion, compliance/acceptance, conditional decision making, avoidance, expressions of discomfort, and allusion to future contact. Although almost all participants described assertion, a number of non-assertive responses were described that are not currently recognized in the literature. These non-assertive responses, including compliance/acceptance, conditional decision making, and avoidance, may represent unique behavioral response styles and likely reflect the complex psychological process of behavioral response to threat. The variety of themes found illustrates the great range of behavioral responses to threat. This broad range is not currently well represented or measured in the literature and better understanding of these responses can inform future interventions, advocacy efforts, and policies focused on sexual assault. PMID:26872475

  16. Enhancing genomic laboratory reports from the patients' view: A qualitative analysis.

    Science.gov (United States)

    Stuckey, Heather; Williams, Janet L; Fan, Audrey L; Rahm, Alanna Kulchak; Green, Jamie; Feldman, Lynn; Bonhag, Michele; Zallen, Doris T; Segal, Michael M; Williams, Marc S

    2015-10-01

    The purpose of this study was to develop a family genomic laboratory report designed to communicate genome sequencing results to parents of children who were participating in a whole genome sequencing clinical research study. Semi-structured interviews were conducted with parents of children who participated in a whole genome sequencing clinical research study to address the elements, language and format of a sample family-directed genome laboratory report. The qualitative interviews were followed by two focus groups aimed at evaluating example presentations of information about prognosis and next steps related to the whole genome sequencing result. Three themes emerged from the qualitative data: (i) Parents described a continual search for valid information and resources regarding their child's condition, a need that prior reports did not meet for parents; (ii) Parents believed that the Family Report would help facilitate communication with physicians and family members; and (iii) Parents identified specific items they appreciated in a genomics Family Report: simplicity of language, logical flow, visual appeal, information on what to expect in the future and recommended next steps. Parents affirmed their desire for a family genomic results report designed for their use and reference. They articulated the need for clear, easy to understand language that provided information with temporal detail and specific recommendations regarding relevant findings consistent with that available to clinicians. PMID:26086630

  17. Analysis on Indonesian Sustainable Palm Oil (ISPO:A Qualitative Assessment the Success Factors for ISPO

    Directory of Open Access Journals (Sweden)

    Dina Harsono

    2012-09-01

    Full Text Available ISPO (Indonesian Sustainable Palm Oil serves as the baseline of sustainability standards for palm oil industry and is expected to improve the competitive advantage of Indonesian palm oil industry. ISPO was introduced by the government in March 2011 and currently most of plantations are in process of applying ISPO. The objective of this research is to analyze success factors affecting implementation of ISPO. Using qualitative method of in-depth interview on 20 selected experts representing actors mapped in the value chain of palm oil industry. The results depicted that; very little companies apply sustainable principles hence ISPO is needed for industrial standards, success factors affecting ISPO implementation, and necessary conditions for ISPO implementation. SWOT technique resulting 8 recommended strategies to be applied for ISPO implementation. Acknowledging ISPO applies to upstream industry (plantations and mills only, managerial implication for this research is the need to develop of a grand master plan for Indonesian palm oil Industry by developing integrated policies complementing ISPO aiming for sustainability, growing and developing downstream industry to add value to CPO product, and for upstream industry to be developed by farmers and cooperatives while big investors to develop mills and downstream industry.Keywords: Palm Oil, ISPO, Sustainable Certification, Success Factors, Qualitative

  18. Qualitative and quantitative analysis of CATHARE2 code results of counterpart test calculations in LOBI, SPES, BETHSY, LSTF facilities

    International Nuclear Information System (INIS)

    The present paper deals with the qualitative and quantitative accuracy evaluation of results from the application of the thermalhydraulic system code CATHARE2V1.3U to the post test analysis of six so-called counterpart tests performed in four PWR facilities. These are LOBI/Mod2, SPES, BETHSY and LSTF facilities operated respectively at the European Research Centre of Ispra (Italy), at Piacenza (Italy), at Grenoble (France) and at Tokai Mura (Japan). The activity is a part of a wide research having as main objective the evaluation of scaling capabilities of the CATHARE2 code. (author)

  19. Amorphous solid dispersions of piroxicam and Soluplus(®): Qualitative and quantitative analysis of piroxicam recrystallization during storage.

    Science.gov (United States)

    Lust, Andres; Strachan, Clare J; Veski, Peep; Aaltonen, Jaakko; Heinämäki, Jyrki; Yliruusi, Jouko; Kogermann, Karin

    2015-01-01

    The conversion of active pharmaceutical ingredient (API) from amorphous to crystalline form is the primary stability issue in formulating amorphous solid dispersions (SDs). The aim of the present study was to carry out qualitative and quantitative analysis of the physical solid-state stability of the SDs of poorly water-soluble piroxicam (PRX) and polyvinyl caprolactam-polyvinyl acetate-polyethylene-glycol graft copolymer (Soluplus(®)). The SDs were prepared by a solvent evaporation method and stored for six months at 0% RH/6 °C, 0% RH/25 °C, 40% RH/25 °C and 75% RH/25 °C. Fourier transform infrared spectroscopy equipped with attenuated total reflection accessory (ATR-FTIR) and Raman spectroscopy were used for characterizing the physical solid-state changes and drug-polymer interactions. The principal component analysis (PCA) and multivariate curve resolution alternating least squares (MCR-ALS) were used for the qualitative and quantitative analysis of Raman spectra collected during storage. When stored at 0% RH/6 °C and at 0% RH/25 °C, PRX in SDs remained in an amorphous form since no recrystallization was observed by ATR-FTIR and Raman spectroscopy. Raman spectroscopy coupled with PCA and MCR-ALS and ATR-FTIR spectroscopy enabled to detect the recrystallization of amorphous PRX in the samples stored at higher humidity. PMID:25843761

  20. Chemical analysis of thin films at Sandia National Laboratories

    International Nuclear Information System (INIS)

    The characterization of thin films produced by chemical and physical vapor deposition requires special analytical techniques. When the average compositions of the films are required, dissolution of the thin films and measurement of the concentrations of the solubilized species is the appropriate analytical approach. In this report techniques for the wet chemical analysis of thin films of Si:Al, P2O5:SiO2, B2O3:SiO2, TiB/sub x/ and TaB/sub x/ are described. The analyses are complicated by the small total quantities of these analytes present in the films, the refractory characters of these analytes, and the possibility of interferences from the substrates on which the films are deposited. Etching conditions are described which dissolve the thin films without introducing interferences from the substrates. A chemical amplification technique and inductively coupled plasma atomic emission spectrometry are shown to provide the sensitivity required to measure the small total quantities (micrograms to milligrams) of analytes present. Also the chemical analysis data has been used to calibrate normal infrared absorption spectroscopy to give fast estimates of the phosphorus and/or boron dopant levels in thin SiO2 films

  1. All-Russia conference on chemical analysis of substances and materials. Abstracts of reports

    International Nuclear Information System (INIS)

    Collection contains abstracts of reports on chemical analysis of foods, drugs, environmental materials. Methods of chemical analysis used in such regions as chemical control in agriculture, criminology, art and archaeology, biotechnology, geology, chemistry and petrochemistry, metallurgy, metrology are presented. Theoretical, methodological and applied aspects of chemical analysis are considered

  2. Quantum chemical computations, vibrational spectroscopic analysis and antimicrobial studies of 2,3-Pyrazinedicarboxylic acid.

    Science.gov (United States)

    Beaula, T Joselin; Packiavathi, A; Manimaran, D; Joe, I Hubert; Rastogi, V K; Jothy, V Bena

    2015-03-01

    Density Functional Theory (DFT) calculations at B3PW91 level with 6-311G (d) basis sets were carried out for 2,3-Pyrazinedicarboxylic acid (PDCA) to analyze in detail the equilibrium geometries and vibrational spectra. Calculations reveal that the optimized geometry closely resembles the experimental XRD data. Vibrational spectra were analyzed on the basis of potential energy distribution (PED) of each vibrational mode, which provides quantitative as well as qualitative interpretation of IR and Raman spectra. Information about size, shape, charge density distribution and site of chemical reactivity of the molecule were obtained by mapping electron density isosurface with the electrostatic potential surface (ESP). Based on optimized ground state geometries, NBO analysis was performed to study donor-acceptor (bond-antibond) interactions. TD-DFT analysis was also performed to calculate energies, oscillator strength of electronic singlet-singlet transitions and the absorption wavelengths. The (13)C and (1)H nuclear magnetic resonance (NMR) chemical shifts of the molecule in the ground state were calculated by gauge independent atomic orbital (GIAO) method and compared with the experimental values. PDCA was screened for its antimicrobial activity and found to exhibit antifungal and antibacterial effects. Molecular docking was also performed for the different receptors. PMID:25544188

  3. Perceived Benefits of Yoga among Urban School Students: A Qualitative Analysis

    Science.gov (United States)

    Wang, Donna; Hagins, Marshall

    2016-01-01

    This study reports on the findings of a qualitative evaluation of a yoga intervention program for urban middle and high school youth in New York City public and charter schools. Six focus groups were conducted with students who participated in a year-long yoga program to determine their perceptions of mental and physical benefits as well as barriers and challenges. Results show that students perceived the benefits of yoga as increased self-regulation, mindfulness, self-esteem, physical conditioning, academic performance, and stress reduction. Barriers and challenges for a yoga practice include lack of time and space. The extent to which the benefits experienced are interrelated to one another is discussed. Suggestions for future research and school-based programming are also offered. PMID:26884797

  4. The attitudes, feelings, and experiences of online gamers: a qualitative analysis.

    Science.gov (United States)

    Hussain, Zaheer; Griffiths, Mark D

    2009-12-01

    The playing of massively multiplayer online role-playing games (MMORPGs) is now a highly popular leisure activity. The present study set out to explore the attitudes, experiences, and feelings of online gamers. The study entailed 71 interviews with online gamers (52 males, 19 females) from 11 different countries. Six main themes emerged from the analyses of the interview transcripts: (a) online gaming and integration into day-to-day lives; (b) online gaming, excessive play, and problems; (c) addiction; (d) psychosocial impact of online gaming; (e) online gaming, dissociation, and time loss; and (f) online gaming and the alleviation of negative feelings and mood states. These findings specifically showed how gamers used MMORPGs to alleviate negative feelings and provided detailed descriptions of personal problems that had arisen due to playing MMORPGs. The implications of these findings are discussed in relation to previous qualitative and quantitative research in the area. PMID:19788376

  5. 3D-CT imaging processing for qualitative and quantitative analysis of maxillofacial cysts and tumors

    International Nuclear Information System (INIS)

    The objective of this study was to evaluate spiral-computed tomography (3D-CT) images of 20 patients presenting with cysts and tumors in the maxillofacial complex, in order to compare the surface and volume techniques of image rendering. The qualitative and quantitative appraisal indicated that the volume technique allowed a more precise and accurate observation than the surface method. On the average, the measurements obtained by means of the 3D volume-rendering technique were 6.28% higher than those obtained by means of the surface method. The sensitivity of the 3D surface technique was lower than that of the 3D volume technique for all conditions stipulated in the diagnosis and evaluation of lesions. We concluded that the 3D-CT volume rendering technique was more reproducible and sensitive than the 3D-CT surface method, in the diagnosis, treatment planning and evaluation of maxillofacial lesions, especially those with intra-osseous involvement. (author)

  6. Hmong Students’ Perceptions of Their Family Environment: A Consensual Qualitative Analysis of Family Photos

    Directory of Open Access Journals (Sweden)

    Dung Mao

    2012-01-01

    Full Text Available Although various studies have examined the home environment of low-income families and its impact on children’s development, limited research has been done to investigate the impact of home environment on Hmong American families, especially those who live below the federal poverty line. The purpose of this study was to document from the students’ perspective what it is like to live and grow up in a poor family. Fifteen Hmong students in 5th through 8th grades tookpart in the photovoice project. The consensual qualitative analyses of the photos and interviews revealed two domains (family physical home environment and family activities, seven themes (crowded space, unkempt space, equipped with media, generational and gender separation, parental involvement, organization of daily life, and social connections and 38 core ideas. Some implications of the study are proposed for educators who work with Hmong families.

  7. A Qualitative Analysis of Imitation Performances of Preschoolers With Down Syndrome.

    Science.gov (United States)

    Vanvuchelen, Marleen

    2016-05-01

    A number of studies suggest that imitation is a characteristic strength in children with Down Syndrome (DS). The present study aims to discover whether imitation performances are qualitatively phenotypical in DS. Eight preschoolers with DS were matched on chronological, mental, language and imitation age with 8 preschoolers with intellectual disability of undifferentiated etiology (ID-UND). Imitation performances on the Preschool Imitation and Praxis Scale were videotaped for blind scoring on 30 possible errors. Children with DS made fewer production errors (synkinesias, OR 0.3 [0.1-0.7]), but more conceptual errors (substitution, OR 2.5 [1.6-3.9]) compared to children with ID-UND. This finding is in line with the view of a cognitive phenotype in DS, which is characterized by preserved visuospatial and impaired language abilities. PMID:27119215

  8. Tendencies in product development in Danish food companies: Report of a qualitative analysis

    DEFF Research Database (Denmark)

    Harmsen, Hanne

    1994-01-01

    Executive Summary: 1. Earlier research has indicated that three factors are essential to successful product development: a) an explicit product development strategy, b) market orientation, ie close market contact during the whole development process, and c) the organisation of product development......, mainly a certain degree of formalisation and an emphasis on up-front activities. 2. The product development function of seven medium-sized Danish food companies was analysed in a qualitative study, based on interviews with a management representative, a person responsible for marketing, and a person...... responsible for product development. The aim was to find out to which degree these companies live up to the normative advice following from earlier studi 3. Most companies did not have an explicit product development strategy. Much of product development was initiated by direct customers and had a short...

  9. The experience of meditation for people with amyotrophic lateral sclerosis and their caregivers - a qualitative analysis.

    Science.gov (United States)

    Marconi, Anna; Gragnano, Gaia; Lunetta, Christian; Gatto, Ramona; Fabiani, Viviana; Tagliaferri, Aurora; Rossi, Gabriella; Sansone, Valeria; Pagnini, Francesco

    2016-09-01

    There is a lack of studies about psychological interventions for people with amyotrophic lateral sclerosis (ALS) and their caregivers. We investigated the experience of a meditation training program tailored for ALS needs. People with ALS (pALS) and their caregivers that joined a meditation program for ALS were interviewed at the end of the program. Verbatims were analyzed with a qualitative approach. Both pALS and their caregivers reported a positive impact on their psychological well-being, promoted by an increase in acceptance and non-judgmental attitude. Furthermore, coping strategies seem to improve, with a positive effect on resilience skills. The ALS meditation training program seems to be an effective psychological intervention for the promotion of well-being in pALS and their caregivers. PMID:26584831

  10. Qualitative Analysis of Relationship between Refractive Index and Atomic Parameters of Solid Materials

    Institute of Scientific and Technical Information of China (English)

    罗遵度; 黄艺东

    2004-01-01

    The refractive index is one of the important parameters describing the optical properties of solid materials. However, it is difficult to obtain a quantitative relation between the refractive index and the structure and composition of materials. A qualitative relation between the refractive index and some atomic parameters of materials was proposed and demonstrated by some oxide optical crystals. A parameter P=r-/F=r-/(r+ΔxD) is defined, in which Δx is the difference of the electronegativities between cations and anions in the materials and r+ and r- are the radii of cations and anions respectively. On the other hand, the factor D was introduced to describe the effect of mass difference of the ions. It is demonstrated by both theoretical discussion and experimental data that refractive index is a decreasing function of parameter P. The relation may be useful for the investigation of optical materials.

  11. Qualitative and quantitative analysis of adenovirus type 5 vector-induced memory CD8 T cells

    DEFF Research Database (Denmark)

    Steffensen, Maria Abildgaard; Holst, Peter Johannes; Steengaard, Sanne Skovvang; Jensen, Benjamin Anderschou Holbech; Bartholdy, Christina; Buus, Anette Stryhn; Christensen, Jan Pravsgaard; Thomsen, Allan Randrup

    2013-01-01

    It has been reported that adenovirus (Ad) primed CD8 T cells may display a distinct and partially exhausted phenotype. Given the practical implications of this claim, we decided to analyze in detail the quality of Ad-primed CD8 T cells directly comparing these cells to CD8 T cells induced through...... infection with lymphocytic choriomeningitis virus. We found that localized immunization with intermediate doses of Ad vector induce a moderate number of functional CD8 T cells, which qualitatively match those found in LCMV-infected mice. Numbers of these cells may be efficiently increased by additional...... leads to the generation of a population of memory cells characterized by relatively low CD27 expression and high CD127 and KLRG1 expression. These memory CD8 T cells are capable of proliferating in response to viral challenge, and protect against infection with live virus. Furthermore, viral challenge...

  12. Qualitative Analysis and Numerical Simulation of Equations of the Standard Cosmological Model

    CERN Document Server

    Ignat'ev, Yurii

    2016-01-01

    On the basis of qualitative theory of differential equations it is shown that dynamic system based on the system of Einstein - Klein - Gordon equations with regard to Friedman Universe has a stable center corresponding to zero values of scalar potential and its derivative at infinity. Thus, the cosmological model based on single massive classical scalar field in infinite future would give a flat Universe. The carried out numerical simulation of the dynamic system corresponding to the system of Einstein - Klein - Gordon equations showed that at great times of the evolution the invariant cosmological acceleration has a microscopic oscillating character ($T\\sim 2\\pi mt$), while macroscopic value of the cosmological acceleration varies from $+1$ at inflation stage after which if decreases fast to $-1/2$ (non-relativistic stage), and then slowly tends to $-1$ (ultrarelativistic stage).

  13. Perceived Benefits of Yoga among Urban School Students: A Qualitative Analysis

    Directory of Open Access Journals (Sweden)

    Donna Wang

    2016-01-01

    Full Text Available This study reports on the findings of a qualitative evaluation of a yoga intervention program for urban middle and high school youth in New York City public and charter schools. Six focus groups were conducted with students who participated in a year-long yoga program to determine their perceptions of mental and physical benefits as well as barriers and challenges. Results show that students perceived the benefits of yoga as increased self-regulation, mindfulness, self-esteem, physical conditioning, academic performance, and stress reduction. Barriers and challenges for a yoga practice include lack of time and space. The extent to which the benefits experienced are interrelated to one another is discussed. Suggestions for future research and school-based programming are also offered.

  14. Perceived Benefits of Yoga among Urban School Students: A Qualitative Analysis.

    Science.gov (United States)

    Wang, Donna; Hagins, Marshall

    2016-01-01

    This study reports on the findings of a qualitative evaluation of a yoga intervention program for urban middle and high school youth in New York City public and charter schools. Six focus groups were conducted with students who participated in a year-long yoga program to determine their perceptions of mental and physical benefits as well as barriers and challenges. Results show that students perceived the benefits of yoga as increased self-regulation, mindfulness, self-esteem, physical conditioning, academic performance, and stress reduction. Barriers and challenges for a yoga practice include lack of time and space. The extent to which the benefits experienced are interrelated to one another is discussed. Suggestions for future research and school-based programming are also offered. PMID:26884797

  15. The voices of newcomers. A qualitative analysis of the construction of transnationalidentity

    Directory of Open Access Journals (Sweden)

    Moisès Esteban-Guitart

    2015-04-01

    Full Text Available Nowadays, globalization is connected with the emergence and reconstruction of new identities. Forinstance, the migration process implies the generation of new forms of identity, questioning the traditionalhomogeneous and static notions of identity. In this regard, the term "transnational identity" or "biculturalidentity" has been suggested for these people that live in between two cultural frameworks and has toestablish a dialogue between the country of origin ("there" and the host country ("here". This studyshows the bicultural and multiple nature of ten immigrant life stories. These narratives illustrate howbicultural and multilingual skills become part of the self definition through the appropriation of culturalvoices that manage the origin and host lifestyles, building hybrid and multiple identities that preservecertain ties with the origin society and take certain forms of life of the new culture and society. The noveltyembodied in this work is the qualitative approach taken in the research. Most of the literature ontransnational identity and transnationalism are based on theoretical discussions or quantitative data.

  16. Analysis of the chemical equilibrium of combustion at constant volume

    OpenAIRE

    Marius BREBENEL

    2014-01-01

    Determining the composition of a mixture of combustion gases at a given temperature is based on chemical equilibrium, when the equilibrium constants are calculated on the assumption of constant pressure and temperature. In this paper, an analysis of changes occurring when combustion takes place at constant volume is presented, deriving a specific formula of the equilibrium constant. The simple reaction of carbon combustion in pure oxygen in both cases (constant pressure and constant ...

  17. Development of microfluidic devices for chemical analysis and fluid handling

    OpenAIRE

    Egidi, Giovanni; De Rooij, Nicolas F

    2004-01-01

    Miniaturization of chemical analysis and synthesis systems improve throughput, performance and accessibility, and lead to significantly reduced costs. In this work are described several components that find place in the process of miniaturization. This work is developed in the frame of the project CREAM (Cartridges with molecularly imprinted Recognition Elements for Antibiotic residues Monitoring in Milk). Antibiotics are widely used to treat cows' diseases, and traces can be found in milk so...

  18. Device for high spatial resolution chemical analysis of a sample and method of high spatial resolution chemical analysis

    Science.gov (United States)

    Van Berkel, Gary J.

    2015-10-06

    A system and method for analyzing a chemical composition of a specimen are described. The system can include at least one pin; a sampling device configured to contact a liquid with a specimen on the at least one pin to form a testing solution; and a stepper mechanism configured to move the at least one pin and the sampling device relative to one another. The system can also include an analytical instrument for determining a chemical composition of the specimen from the testing solution. In particular, the systems and methods described herein enable chemical analysis of specimens, such as tissue, to be evaluated in a manner that the spatial-resolution is limited by the size of the pins used to obtain tissue samples, not the size of the sampling device used to solubilize the samples coupled to the pins.

  19. A Qualitative Analysis Into The Strategic Priorities of The Indonesian Bank Industry

    Directory of Open Access Journals (Sweden)

    Siti Ridloah

    2016-04-01

    Full Text Available This research paper investigates present day strategic priorities employed by large (foreign exchange banks in Indonesian banking industry. The research used ‘idea networking’ of the mission statements of banks as the means to identifying a handful of priorities. The population comprised commercial banks in Indonesia. Foreign exchange banks in Indonesia were chosen as a sample of this study .The study was conducted in 2014. The research method utilized in this study is qualitative clustering through idea networking. In this method, the idea statements were extracted and linked to each other to produce diagrams resulting in clusters of statements that were generalized into priorities. The finding from this study is that Indonesian banks have six main priorities of “service excellence”, “prudent corporate governance”, “innovative”, “customer segmentation focus”, “professionalism” and “social responsibility”. This, undoubtedly, provides some insight into the potential threats to the Indonesian bank industry as well as an agenda for change.Penelitian ini mengkaji mengenai prioritas strategik pada bank-bank besar (valuta asing dalam industri perbankan Indonesia. Penelitian ini menggunakan ‘idea networking’ dari pernyataan misi bank sebagai sarana untuk mengidentifikasi beberapa prioritas. Populasi terdiri atas bank komersial di Indonesia. Bank valuta asing di Indonesia dipilih sebagai sampel penelitian ini. Penelitian ini dilakukan pada tahun 2014. Metode penelitian yang digunakan dalam penelitian ini adalah qualitative clustering melalui ‘ide networking’. Dalam metode ini, pernyataan ide diekstraksi dan dihubungkan satu sama lain untuk menghasilkan diagram yang menghasilkan kelompok pernyataan yang digeneralisasikan ke dalam prioritas. Temuan dari studi ini adalah bahwa perbankan Indonesia memiliki enam prioritas utama “pelayanan prima”, “tata kelola perusahaan yang bijaksana”, “inovatif”,

  20. Cluster analysis to evaluate stable chemical elements and physical-chemical parameters behavior on uranium mining waste

    International Nuclear Information System (INIS)

    The Ore Treating Unit (UTM, in portuguese) is a deactivated uranium mine. A cluster analysis was used to evaluate the behavior of stable chemical elements and physical-chemical parameters in their effluents. The utilization of the cluster analysis proved itself effective in the assessment, allowing the identification of groups of chemical elements, physical-chemical parameters and their joint analysis (elements and parameters). As a result we may assert, based on data analysis, that there is a strong link between calcium and magnesium and between aluminum and rare-earth oxides on UTM's effluents. Sulphate was also identified as strongly linked to total and dissolved solids, and those to electrical conductivity. There were other associations, but not so strongly linked. Further gathering, to seasonal evaluation, are required in order to confirm those analysis. Additional statistical analysis (factor analysis) must be used to try to identify the origin of the identified groups on this analysis. (author)

  1. Global Handwashing Day 2012: a qualitative content analysis of Chinese social media reaction to a health promotion event

    Science.gov (United States)

    Cai, Jingxian; Hao, Yi; Ying, Yuchen; Chan, Benedict Shing Bun; Tse, Zion Tsz Ho; Fu, King-Wa

    2015-01-01

    Background Global Handwashing Day (GHD) is a handwashing promotion campaign organized by the Global Public-Private Partnership of Handwashing with Soap. In China, it has been promoted by the Chinese public health authorities, international organizations and multinational corporations through various channels including social media such as Sina Weibo, the leading Chinese microblogging site similar to Twitter. The objective of this study is to qualitatively assess Chinese social media users’ reactions to a health promotion campaign using Global Handwashing Day (GHD) 2012 as an example. Methods We conducted a qualitative content analysis of 552 Weibo posts generated on GHD 2012 by Weibo users with 1000 or more followers with the Chinese keyword for “handwashing.” We categorized the Weibo posts into groups by keywords that frequently appeared in the data set. These groups were either exact reposts of an original post, or they conveyed similar information. Results We observed the interconnections between traditional media and social media in handwashing promotion. Social media were found to serve as amplifiers of contents provided by traditional media. We observed the contextualization of global hygiene messages in a unique national social media market in China. Discussion Our study showed that social media and traditional media are two interconnected arms of the GHD campaign in China. Our analysis demonstrated that public health campaigns in China can be evaluated using social media data. The themes and topics identified in this study will help public health practitioners evaluate future social media handwashing promotion campaigns. PMID:26668765

  2. Proximate and qualitative analysis of different parts of Piper sarmentosum, and quantification of total amides in various extracts

    Directory of Open Access Journals (Sweden)

    K Hussain

    2009-01-01

    Full Text Available Present study aimed to analyze crude powders and extracts of different parts of Piper sarmentosum for proximate, qualitative and quantitative studies to prepare standardized botanical drugs from the plant. Unlike synthetic drugs, standardization of botanical drugs is always challenging for natural product researchers due to inadequacy and unavailability of standards and methods. Standardization of botanical drugs is not just an analytical process which ends with the detection of few constituents rather it embodies a set of analytical, biochemical and biological protocols. Keeping analytical protocols in view, crude powders were analyzed for the content of moisture, total ash, acid insoluble ash, sulphated ash and soluble extractives in water and methanol. These physicochemical properties were found within specified limits. Comparison of Fourier Transform Infrared (FTIR fingerprints of crude powders of different parts indicated the difference of constituents. Similarly, comparison of ultra violet (UV profiles of extracts of all the parts exhibited discrimination. Qualitative analysis of aqueous and ethanol extracts by high performance thin layer chromatography (HPTLC indicated the presence of amides in ethanol extracts of all parts of the plant. Quantitative analysis of extracts indicated that total amide content was significantly higher by colorimetry as compared to UV spectrophotometry. The distribution of amides in different parts was in the order fruit > root > leaf > stem (P=0.000. It is concluded from the study that amide content varies in different parts of the plant and ethanol is a better solvent for their extraction. Additionally, colorimetric method exhibits high content of amides.

  3. Analysis of the stochastic excitability in the flow chemical reactor

    Energy Technology Data Exchange (ETDEWEB)

    Bashkirtseva, Irina [Ural Federal University, Lenina, 51, Ekaterinburg, 620000 (Russian Federation)

    2015-11-30

    A dynamic model of the thermochemical process in the flow reactor is considered. We study an influence of the random disturbances on the stationary regime of this model. A phenomenon of noise-induced excitability is demonstrated. For the analysis of this phenomenon, a constructive technique based on the stochastic sensitivity functions and confidence domains is applied. It is shown how elaborated technique can be used for the probabilistic analysis of the generation of mixed-mode stochastic oscillations in the flow chemical reactor.

  4. Methods of remote surface chemical analysis for asteroid missions

    International Nuclear Information System (INIS)

    Different remote sensing methods are discussed which can be applied to investigate the chemical composition of minor bodies of the Solar System. The secondary-ion method, remote laser mass-analysis and electron beam induced X-ray emission analysis are treated in detail. Relative advantages of these techniques are analyzed. The physical limitation of the methods: effects of solar magnetic field and solar wind on the secondary-ion and laser methods and the effect of electrostatic potential of the space apparatus on the ion and electron beam methods are described. First laboratory results of remote laser method are given. (D.Gy.)

  5. Electrochemical approaches for chemical and biological analysis on Mars

    Science.gov (United States)

    Kounaves, Samuel P.

    2003-01-01

    Obtaining in situ chemical data from planetary bodies such as Mars or Europa can present significant challenges. The one analytical technique that has many of the requisite characteristics to meet such a challenge is electroanalysis. Described here are three electroanalytical devices designed for in situ geochemical and biological analysis on Mars. The Mars Environmental Compatibility Assessment (MECA) was built and flight qualified for the now cancelled NASA Mars 2001 Lander. Part of MECA consisted of four "cells" containing arrays of electrochemical based sensors for measuring the ionic species in soil samples. A next-generation MECA, the Robotic Chemical Analysis Laboratory (RCAL), uses a carousel-type system to allow for greater customization of analytical procedures. A second instrument, proposed as part of the 2007 CryoScout mission, consists of a flow-through inorganic chemical analyzer (MICA). CryoScout is a torpedo-like device designed for subsurface investigation of the stratigraphic climate record embedded in Mars' north polar cap. As the CryoScout melts its way through the ice cap, MICA will collect and analyze the meltwater for a variety of inorganics and chemical parameters. By analyzing the chemistry locked in the layers of dust, salt, and ice, geologists will be able to determine the recent history of climate, water, and atmosphere on Mars and link it to the past. Finally, electroanalysis shows its abilities in the detection of possible microorganism on Mars or elsewhere in the solar system. To identify an unknown microorganism, one that may not even use Earth-type biochemistry, requires a detection scheme which makes minimal assumptions and looks for the most general features. Recent work has demonstrated that the use of an array of electrochemical sensors which monitors the changes in a solution via electrical conductivity, pH, and ion selective electrodes, can be used to detect minute chemical perturbations caused by the growth of bacteria and

  6. The Effect of Online Systems Analysis Training on Aerospace Industry Business Performance: A Qualitative Study

    Science.gov (United States)

    Burk, Erlan

    2012-01-01

    Aerospace companies needed additional research on technology-based training to verify expectations when enhancing human capital through online systems analysis training. The research for online systems analysis training provided aerospace companies a means to verify expectations for systems analysis technology-based training on business…

  7. Quantitative and Qualitative analysis of Phenolic and Flavonoid content in Moringa oleifera Lam and Ocimum tenuiflorum L.

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    Sangeeta Sankhalkar

    2016-01-01

    Full Text Available Background: Number of secondary compounds is produced by plants as natural antioxidants. Moringa oleifera Lam. and Ocimum tenuiflorum L. are known for their wide applications in food and pharmaceutical industry. Objective: To compare phenolic and flavonoid content in M. oleifera Lam and O. tenuiflorum L. by quantitative and qualitative analysis. Materials and Methods: Phenolic and flavonoid content were studied spectrophotometrically and by paper chromatography in M. oleifera Lam. and O. tenuiflorum L. Results: Higher phenolic and flavonoid content were observed in Moringa leaf and flower. Ocimum flower showed higher phenolic content and low flavonoid in comparison to Moringa. Flavonoids such as biflavonyl, flavones, glycosylflavones, and kaempferol were identified by paper chromatography. Phytochemical analysis for flavonoid, tannins, saponins, alkaloids, reducing sugars, and anthraquinones were tested positive for Moringa and Ocimum leaf as well as flower. Conclusions: In the present study higher phenolic and flavonoid content, indicated the natural antioxidant nature of Moringa and Ocimum signifying their medicinal importance.

  8. RETRAN code analysis of Tsuruga-2 plant chemical volume control system (CVCS) reactor coolant leakage incident

    International Nuclear Information System (INIS)

    In the Chemical Volume Control System (CVCS) reactor primary coolant leakage incident, which occurred in Tsuruga-2 (4-loop PWR, 3,423 MWt, 1,160 MWe) on July 12, 1999, it took about 14 hours before the leakage isolation. The delayed leakage isolation and a large amount of leakage have become a social concern. Effective procedure modification was studied. Three betterments were proposed based on a qualitative analysis to reduce the pressure and temperature of the primary loop as fast as possible by the current plant facilities while maintaining enough subcooling of the primary loop. I analyzed the incident with RETRAN code in order to quantitatively evaluate the leakage reduction when these betterments are adopted. This paper is very new because it created a typical analysis method for PWR plant behavior during plant shutdown procedure which conventional RETRAN transient analyses rarely dealt with. Also the event time is very long. To carry out this analysis successfully, I devised new models such as an Residual Heat Removal System (RHR) model etc. and simplified parts of the conventional model. Based on the analysis results, I confirmed that leakage can be reduced by about 30% by adopting these betterments. Then the Japan Atomic Power Company (JAPC) modified the operational procedure for reactor primary coolant leakage events adopting these betterments. (author)

  9. Perceptions of Sex, Gender, and Puberty Suppression: A Qualitative Analysis of Transgender Youth.

    Science.gov (United States)

    Vrouenraets, Lieke Josephina Jeanne Johanna; Fredriks, A Miranda; Hannema, Sabine E; Cohen-Kettenis, Peggy T; de Vries, Martine C

    2016-10-01

    International guidelines recommend the use of Gonadotropin-Releasing Hormone (GnRH) agonists in adolescents with gender dysphoria (GD) to suppress puberty. Little is known about the way gender dysphoric adolescents themselves think about this early medical intervention. The purpose of the present study was (1) to explicate the considerations of gender dysphoric adolescents in the Netherlands concerning the use of puberty suppression; (2) to explore whether the considerations of gender dysphoric adolescents differ from those of professionals working in treatment teams, and if so in what sense. This was a qualitative study designed to identify considerations of gender dysphoric adolescents regarding early treatment. All 13 adolescents, except for one, were treated with puberty suppression; five adolescents were trans girls and eight were trans boys. Their ages ranged between 13 and 18 years, with an average age of 16 years and 11 months, and a median age of 17 years and 4 months. Subsequently, the considerations of the adolescents were compared with views of clinicians treating youth with GD. From the interviews with the gender dysphoric adolescents, three themes emerged: (1) the difficulty of determining what is an appropriate lower age limit for starting puberty suppression. Most adolescents found it difficult to define an appropriate age limit and saw it as a dilemma; (2) the lack of data on the long-term effects of puberty suppression. Most adolescents stated that the lack of long-term data did not and would not stop them from wanting puberty suppression; (3) the role of the social context, for which there were two subthemes: (a) increased media-attention, on television, and on the Internet; (b) an imposed stereotype. Some adolescents were positive about the role of the social context, but others raised doubts about it. Compared to clinicians, adolescents were often more cautious in their treatment views. It is important to give voice to gender dysphoric

  10. Potential of qualitative network analysis in migration studies- Reflections based on an empirical analysis of young researchers' mobility aspirations

    OpenAIRE

    Elisabeth Scheibelhofer

    2011-01-01

    Based on the example of an empirical research study, the paper examines the strengths and limitations of a qualitative network approach to migration and mobility. The method of graphic drawings produced by the respondents within an interview setting was applied. With this method, we argue to be able to analyse migrants’ specific social embeddedness and its influence on future mobility aspirations. Likewise, connections between the migratory biography and the individuals’ various social relati...

  11. Qualitative and Quantitative Analysis of the Major Constituents in Chinese Medical Preparation Lianhua-Qingwen Capsule by UPLC-DAD-QTOF-MS

    Directory of Open Access Journals (Sweden)

    Weina Jia

    2015-01-01

    Full Text Available Lianhua-Qingwen capsule (LQC is a commonly used Chinese medical preparation to treat viral influenza and especially played a very important role in the fight against severe acute respiratory syndrome (SARS in 2002-2003 in China. In this paper, a rapid ultraperformance liquid chromatography coupled with diode-array detector and quadrupole time-of-flight mass spectrometry (UPLC-DAD-QTOF-MS method was established for qualitative and quantitative analysis of the major constituents of LQC. A total of 61 compounds including flavonoids, phenylpropanoids, anthraquinones, triterpenoids, iridoids, and other types of compounds were unambiguously or tentatively identified by comparing the retention times and accurate mass measurement with reference compounds or literature data. Among them, twelve representative compounds were further quantified as chemical markers in quantitative analysis, including salidroside, chlorogenic acid, forsythoside E, cryptochlorogenic acid, amygdalin, sweroside, hyperin, rutin, forsythoside A, phillyrin, rhein, and glycyrrhizic acid. The UPLC-DAD method was evaluated with linearity, limit of detection (LOD, limit of quantification (LOQ, precision, stability, repeatability, and recovery tests. The results showed that the developed quantitative method was linear, sensitive, and precise for the quality control of LQC.

  12. Tip enhanced Raman scattering: plasmonic enhancements for nanoscale chemical analysis

    Science.gov (United States)

    Schultz, Zachary D.; Marr, James M.; Wang, Hao

    2014-04-01

    Tip enhanced Raman scattering (TERS) is an emerging technique that uses a metalized scanning probe microscope tip to spatially localize electric fields that enhances Raman scattering enabling chemical imaging on nanometer dimensions. Arising from the same principles as surface enhanced Raman scattering (SERS), TERS offers unique advantages associated with controling the size, shape, and location of the enhancing nanostructure. In this article we discuss the correlations between current understanding of SERS and how this relates to TERS, as well as how TERS provides new understanding and insights. The relationship between plasmon resonances and Raman enhancements is emphasized as the key to obtaining optimal TERS results. Applications of TERS, including chemical analysis of carbon nanotubes, organic molecules, inorganic crystals, nucleic acids, proteins, cells and organisms, are used to illustrate the information that can be gained. Under ideal conditions TERS is capable of single molecule sensitivity and sub-nanometer spatial resolution. The ability to control plasmonic enhancements for chemical analysis suggests new experiments and opportunities to understand molecular composition and interactions on the nanoscale.

  13. Systematic prevention of overweight and obesity in adults: a qualitative and quantitative literature analysis.

    Science.gov (United States)

    Kremers, S; Reubsaet, A; Martens, M; Gerards, S; Jonkers, R; Candel, M; de Weerdt, I; de Vries, N

    2010-05-01

    To date, most interventions aimed at preventing obesity have underemphasized the application of systematic intervention development, implementation and evaluation. The present review provides a thorough insight in factors promoting implementation and/or effectiveness in interventions aimed at preventing overweight/obesity among adults. A total of 46 studies evaluating interventions aimed at preventing obesity were reviewed, followed by both qualitative and quantitative analyses. The Intervention Mapping protocol and the Environmental Research framework for weight Gain prevention (EnRG) were applied to analyse and classify the included studies. The interventions were categorized by setting (workplace, community, health care) and target group (ethnic minorities, pregnant women, [pre]menopausal women, smokers, people with intellectual disabilities). Generally, interventions were found to have potential in changing energy balance-related behaviours and anthropometric outcomes. Effect sizes for changes in body mass index ranged between -0.09 and 0.45. When the programme goal specifically aimed at weight management, the intervention was found to be more successful than interventions with programme goals that were aimed at preventing cardiovascular disease or improving general health status. Although a considerable part of studies included motivational interventions, only some actually assessed the effects on potential cognitive mediators. A general lack of reporting underlying theoretical models for behaviour change was observed as well as the inclusion of linkage groups and strategies to promote empowerment. PMID:19538441

  14. Parent-child collaborative decision making for the management of chronic illness: a qualitative analysis.

    Science.gov (United States)

    Miller, Victoria A

    2009-09-01

    Parent-child collaborative decision making (CDM) is a potentially important precursor to full decision-making independence and may be particularly significant for the management of childhood chronic illnesses. The primary aim of this qualitative study was to explore the concept of CDM from the perspective of children and parents. Children (ages 8-19 years) with asthma, type 1 diabetes, or cystic fibrosis and parents of children with these illnesses participated in focus groups and individual interviews. Participants described various ways they collaborate with one another (e.g., asking for the other's opinion; providing information). Participants viewed collaboration as beneficial, regardless of who ultimately makes the decision. Several factors emerged as potential predictors of CDM, including parent/family factors (e.g., parental time; parent-child conflict), child factors (e.g., maturity; emotional/behavioral functioning), and decision/situation factors (e.g., seriousness of the decision; extent to which the child is experiencing symptoms). These data suggest ways to enhance collaborative decision-making interactions between children with a chronic illness and their parents, as well as several areas for future quantitative research. PMID:19803619

  15. Underwater versus dry irradiation with {sup 60}Co, a qualitative analysis

    Energy Technology Data Exchange (ETDEWEB)

    Omi, Nelson M.; Rela, Paulo R. [Instituto de Pesquisas Energeticas e Nucleares (IPEN/CNEN-SP), Sao Paulo, SP (Brazil)]. E-mails: nminoru@ipen.br; prela@ipen.br

    2007-07-01

    The development of gemstone gamma irradiation devices showed that underwater irradiation leads to better results than the irradiation in dry condition. Many reasons may be shown for that behavior. This work intends to analyze qualitatively two of these reasons. The medium discontinuity between the irradiation source, gemstone, and the air inside the irradiation devices, which is minimized in underwater irradiation, is one of them. The other analyzed hypothesis is the differences between the interactions of source's direct radiation and those from the scattered radiation. The numerical study of these hypothesis, as long as some irradiation tests may be presented in future works. The main conclusion of this work is that the absorbed dose may have different behavior view if the depending on the kind and energy level of the absorbed dose. For example, it is not used to consider what portion of the dose is due to source's direct hit, what part is from ejected electrons with high or low energy and how much high, medium and low energy electro-magnetic quanta hit a portion of mass when determining its radiation dose. To know the total absorbed dose is usually, but not always, enough to explain a material response to radiation. (author)

  16. Qualitative analysis of the elliptical centric technique and the TRICKS technique

    Science.gov (United States)

    Dong, Kyung-Rae; Goo, Eun-Hoe; Lee, Jae-Seung; Chung, Woon-Kwan

    2013-02-01

    This study evaluated the usefulness of time resolved imaging of contrast kinetics (TRICKS) magnetic resonance angiography (MRA) and elliptical centric MRA according to the type of cerebral disease. From February 2010 to January 2012, elliptical centric MRA and TRICKS MRA images were acquired from 50 normal individuals and 50 patients with cerebral diseases by using 3.0-Tesla magnetic resonance imaging (MRI) equipment. The images were analyzed qualitatively by examining areas such as the presence or absence of artifacts on the images, the distinctness of boundaries of blood vessels, accurate representation of the lesions, and the subtraction level. In addition, the sensitivity, specificity, positive prediction rate, negative prediction rate and accuracy were assessed by comparing the diagnostic efficacy of the two techniques. The results revealed TRICKS MRA to have superior image quality to elliptical centric MRA. Regarding each disease, TRICKS MRA showed higher diagnostic efficacy for artery venous malformation (AVM) and middle cerebral artery (MCA) bypass patients whereas elliptical centric MRA was more suitable for patients with brain tumors, cerebral infarction, cerebral stenosis or sinus mass.

  17. A Qualitative Analysis of Children's Emotional Reactions During Hospitalization Following Injury.

    Science.gov (United States)

    Ramsdell, Katharine Donlon; Morrison, Melissa; Kassam-Adams, Nancy; Marsac, Meghan L

    2016-01-01

    Children who sustain injuries are at risk for experiencing traumatic stress reactions. Few studies have obtained detailed, qualitative information regarding children's and parents' own understanding of their experiences during the peritrauma period. Understanding children's injury and early hospital experiences is crucial to inform the development of early interventions during the peritrauma period, which speak to these concerns. The primary purpose of this study was to understand child and parent views of the stressors experienced by children hospitalized for an injury. A secondary aim was to identify children's feelings and thoughts about injury- and hospital-related stressors. Ten children and their parents participated in semistructured interviews. Interviews were audio-recorded, transcribed, and coded. Stressors were classified into 5 domains: procedural concerns, uncertainty, sleep and nutrition challenges, being confined to the hospital, and home preparation. Children and parents were more likely to articulate feelings about stressors than thoughts about stressors. Feelings reported by children and parents were predominantly negative. Children and parents may have an easier time expressing feelings than thoughts, which has implications for communicating with medical teams as well as for psychological treatment. Future research should examine how children's perceptions of their injury- and hospital-related experiences relate to later outcomes such as traumatic stress reactions. PMID:27414141

  18. An efficient framework for qualitative and quantitative analysis of magnetically actuated, rigid microswimmers

    Science.gov (United States)

    Meshkati, Farshad; Cheang, U. Kei; Kim, Minjun; Fu, Henry

    2013-11-01

    Artificial microswimmers or microrobots have been actively investigated for possible applications in microactuation, drug-delivery, in situ sensing and diagnostics, and microtransport and assembly. We describe simple achiral, rigid microswimmers actuated by rotating magnetic fields, and elucidate the the minimal conditions for propulsion. We present an efficient method for analyzing the propulsion of such swimmers, which is capable of predicting the speed and direction of swimming as well as the swimmer's rotational dynamics. The method assumes knowledge of the swimmer's geometry and magnetic dipole moment,which can be measured from its response to an impulsive change in the direction of the magnetic field. The method only requires a single calculation of the swimmer's mobility matrix using a boundary element method such as the method of regularized Stokeslets. We validate our method by finding good agreement with experiment for both qualitative and quantitative predictions. The method described can be easily applied to rigid swimmers with arbitrary geometries which are rotated by external magnetic fields.

  19. Psychosocial barriers to engagement with an eating disorder service: a qualitative analysis of failure to attend.

    Science.gov (United States)

    Leavey, Gerard; Vallianatou, Christina; Johnson-Sabine, Eric; Rae, Sophie; Gunputh, Vanessa

    2011-01-01

    Patient non-attendance and failure to engage with health services may be costly to the individual in terms of the delays in obtaining appropriate treatment and the unnecessary suffering and discomfort this may entail. Non-attendance is also costly to health services because of administrative and clinical time lost and the opportunity costs of not treating other patients. Patients who have been referred to eating disorders clinics by general practitioners appear to have high rates of non-attendance or dropping out immediately after assessment. The reasons behind their failure to engage are poorly understood. After undertaking a comprehensive audit in a major eating disorder unit in London we undertook a qualitative study of non-attenders in order to obtain the reasons behind non-engagement. We found that while participants tend to open their explanations with practical difficulties (e.g., child-minding) or service- related factors, what commonly emerged from their narratives were profound social-psychological problems and the ambivalence of confronting or losing a relationship with food that was both comforting and debilitating. Some participants described a world of imprisonment which precluded the likelihood of firm engagement with services. We suggest that such people may require better identification and outreach provision. PMID:21932972

  20. Thermochromic Phantom and Measurement Protocol for Qualitative Analysis of Ultrasound Physiotherapy Systems.

    Science.gov (United States)

    Costa, Rejane M; Alvarenga, André V; Costa-Felix, Rodrigo P B; Omena, Thaís P; von Krüger, Marco A; Pereira, Wagner C A

    2016-01-01

    Thermochromic test bodies are promising tools for qualitatively evaluating the acoustic output of ultrasound physiotherapy systems. Here, a novel phantom, made of silicone mixed with thermochromic powder material, was developed. Additionally, a procedure was developed to evaluate the stability and homogeneity of the phantom in a metrologic and statistical base. Twelve phantoms were divided into three groups. Each group was insonated by a different transducer. An effective intensity of 1.0 W/cm(2) was applied to each phantom; two operators performed the procedure three times in all phantoms. The heated area was measured after image processing. No statistical difference was observed in the heated areas for different samples or in the results for different operators. The heated areas obtained using each transducer were statistically different, indicating that the thermochromic phantom samples had sufficient sensitivity to represent the heated areas of different ultrasonic transducers. Combined with the evaluation procedure, the phantom provides an approach not previously described in the literature. The proposed approach can be used to quickly assess changes in ultrasonic beam cross-sectional shape during the lifetime of ultrasound physiotherapy systems. PMID:26456890

  1. Quantitative and qualitative analysis of cadaveric human pinealocytes in various age groups

    International Nuclear Information System (INIS)

    Objective: To determine age-related quantitative and qualitative changes in human pinealocytes using cadaveric material. Study Design: Analytical cross-sectional study. Place and Duration of Study: The study was conducted in the Department of Anatomy, University of Health Sciences, Lahore, from January to December 2008. Methodology: Thirty pineal glands from human cadavers ranging from 16-80 years of age were collected from mortuary of King Edward Medical University, Lahore, using purposive non-probability sampling. These were divided into three different age groups: I, II and III each between 16 to 30, 31 to 45 and 46 to 80 years of age respectively. Pinealocytes were counted; their mean diameter and that of their nuclei was calculated from a total of 30 cells per slide, using 4 macro m thick H and E stained histological sections. Mean +- S.E.M. was calculated for quantitative variables. One-way ANOVA was applied to observe group mean differences among three groups. Results: The number of pinealocytes decreased with aging but the difference was statistically insignificant when compared between groups (p=0.234). There was no change in size of pinealocyte soma and its nucleus (p=0.889 and 0.898 respectively). Conclusion: The number and size of pinealocytes, and their nuclei remained unaltered with advancing age. (author)

  2. Structuring and coding in health care records: a qualitative analysis using diabetes as a case study

    Directory of Open Access Journals (Sweden)

    Ann R R Robertson

    2015-03-01

    Full Text Available Background   Globally, diabetes mellitus presents a substantial burden to individuals and healthcare systems. Structuring and/or coding of medical records underpin attempts to improve information sharing and searching, potentially bringing clinical and secondary uses benefits.Aims and objectives   We investigated if, how and why records for adults with diabetes were structured and/or coded, and explored stakeholders’ perceptions of current practice.Methods   We carried out a qualitative, theoretically-informed case study of documenting healthcare information for diabetes patients in family practice and hospital settings, using semi-structured interviews, observations, systems demonstrations and documentary data.Results   We conducted 22 interviews and four on-site observations, and reviewed 25 documents. For secondary uses – research, audit, public health and service planning – the benefits of highly structured and coded diabetes data were clearly articulated. Reported clinical benefits in terms of managing and monitoring diabetes, and perhaps encouraging patient self-management, were modest. We observed marked differences in levels of record structuring and/or coding between settings, and found little evidence that these data were being exploited to improve information sharing between them.Conclusions   Using high levels of data structuring and coding in medical records for diabetes patients has potential to be exploited more fully, and lessons might be learned from successful developments elsewhere in the UK.

  3. Chemical Bond Analysis of Single Crystal Growth of Magnesium Oxide

    Institute of Scientific and Technical Information of China (English)

    2006-01-01

    Starting from the crystallographic structure of magnesium oxide (MgO), both the chemical bond model of solids and Pauling's third rule (polyhedral sharing rule) were employed to quantitatively analyze the chemical bonding structure of constituent atoms and single crystal growth. Our analytical results show that MgO single crystals prefer to grow along the direction and the growth rate of the {100} plane is the slowest one. Therefore, the results show that the {100} plane of MgO crystals can be the ultimate morphology face, which is in a good agreement with our previous experimental results. The study indicate that the structure analysis is an effective tool to control the single-crystal growth.

  4. Microarray Technology for Major Chemical Contaminants Analysis in Food: Current Status and Prospects

    OpenAIRE

    Xiaoxia Ding; Wen Zhang; Xiaofeng Hu; Qi Zhang; Peiwu Li; Zhaowei Zhang

    2012-01-01

    Chemical contaminants in food have caused serious health issues in both humans and animals. Microarray technology is an advanced technique suitable for the analysis of chemical contaminates. In particular, immuno-microarray approach is one of the most promising methods for chemical contaminants analysis. The use of microarrays for the analysis of chemical contaminants is the subject of this review. Fabrication strategies and detection methods for chemical contaminants are discussed in detail....

  5. Quantitative and Qualitative Analysis of Reported Dreams and the Problem of Double Hermeneutics in Clinical Research

    OpenAIRE

    Siamak Movahedi

    2012-01-01

    The aim of this article is to show that statistical analysis and hermeneutics are not mutually exclusive. Although statistical analysis may capture some patterns and regularities, statistical methods may themselves generate different types of interpretation and, in turn, give rise to even more interpretations. The discussion is lodged within the context of a quantitative analysis of dream content. I attempted to examine the dialogical texts of reported dreams monologically, but soon found mys...

  6. The Quantitative and Qualitative Analysis of Cohorts' Early Enrollment in Physics: concurrent with enrollment in mathematics, biology and chemistry

    Science.gov (United States)

    Lynch, Robert Bruce Rodes

    Cohorts of 48 entering biological science majors was recruited in the fall of 2007 and again in 2008 and 2009 for the Interdisciplinary Science Experience (ISE). These ISE students enrolled in their own sections of standard courses of physics, chemistry, and biology. In these courses average ISE student out-performed their non-cohort peers by up to a full letter grade. A qualitative analysis of ISE student interviews illuminates the student experience and shows how the ISE students perceived themselves to be different than their non-cohort peers. Quantitative modeling of student performance shows that higher grades are correlated with multiple factors. These factors includes admissions characteristics such as high school GPA, and SAT scores, as well as demographic information. These trends support and elaborate on the selection narratives told by participants. Additionally the quantitative model found that higher student performance is predicted by structural aspects of the ISE program, specifically the timing of course, enrolling as a freshmen in many of their courses, and the sequencing of physics and chemistry courses. There is a statistically significant benefit to student performance in general and organic chemistry courses associated with completing the first quarter of the Physics for Bio-Science majors prior to enrollment. Further the combination of quantitative and qualitative data suggest that there is a epistemological transfer of problem solving skills and outlook from the physics to the chemistry courses.

  7. Quantitative & qualitative analysis of endothelial cells of donor cornea before & after penetrating keratoplasty in different pathological conditions

    Directory of Open Access Journals (Sweden)

    Aruna K.R. Gupta

    2016-01-01

    Full Text Available Background & objectives: Endothelial cells of the donor cornea are known to be affected quantitatively and qualitatively in different pathological conditions after penetrating keratoplasty (PK and this has direct effect on the clarity of vision obtained after PK. This study was undertaken to analyze the qualitative and quantitative changes in donor endothelial cells before and after PK in different pathological conditions. Methods: A prospective investigational analysis of 100 consecutive donor corneas used for penetrating keratoplasty between June 2006 and June 2008, was conducted. The patients were evaluated on the first day, at the end of first week, first month, third and six months and one year. Results: A decrease was observed in endothelial cell count in all pathological conditions. After one year of follow up the loss was 33.1 per cent in corneal opacity, 45.9 per cent in acute infective keratitis (AIK, 58.5 per cent in regrafts, 28.5 per cent in pseudophakic bullous keratopathy (PBK, 37 per cent in descemetocele, 27 per cent in keratoconus and 35.5 per cent in aphakic bullous keratopathy (ABK cases. Interpretation & conclusions: The endothelial cell loss was highest in regraft cases which was significant (P<0.05, while the least endothelial cell loss was seen in keratoconus cases. The cell loss was associated with increase in coefficient of variation (CV, i.e. polymegathism and pleomorphism. Inspite of this polymegathism and pleomorphism, the clarity of the graft was maintained.

  8. Finding Structure in Diversity: A Stepwise Small-N/Medium-N Qualitative Comparative Analysis Approach for Water Resources Management Research

    Directory of Open Access Journals (Sweden)

    Peter P. Mollinga

    2014-02-01

    Full Text Available Drawing particularly on recent debates on, and development of, comparative methods in the field of comparative politics, the paper argues that stepwise small-N/medium-N qualitative comparative analysis (QCA is a particularly suitable methodological approach for water resources studies because it can make use of the rich but fragmented water resources studies literature for accumulation of knowledge and development of theory. It is suggested that taking an explicit critical realist ontological and epistemological stance allows expansion of the scope of stepwise small-N/medium-N QCA beyond what is claimed for it in Ragin’s 'configurational comparative methods (CCM' perspective for analysing the complexity of causality as 'multiple conjunctural causation'. In addition to explanation of certain sets of 'outcomes' as in CCM’s combinatorial, set-theoretic approach, embedding stepwise small-N/medium-N QCA in a critical realist ontology allows the method to contribute to development of theory on (qualitative differences between the structures in society that shape water resources use, management and governance.

  9. Quantitative & qualitative analysis of endothelial cells of donor cornea before & after penetrating keratoplasty in different pathological conditions

    Science.gov (United States)

    Gupta, Aruna K.R.; Gupta, Roopam K.R.

    2016-01-01

    Background & objectives: Endothelial cells of the donor cornea are known to be affected quantitatively and qualitatively in different pathological conditions after penetrating keratoplasty (PK) and this has direct effect on the clarity of vision obtained after PK. This study was undertaken to analyze the qualitative and quantitative changes in donor endothelial cells before and after PK in different pathological conditions. Methods: A prospective investigational analysis of 100 consecutive donor corneas used for penetrating keratoplasty between June 2006 and June 2008, was conducted. The patients were evaluated on the first day, at the end of first week, first month, third and six months and one year. Results: A decrease was observed in endothelial cell count in all pathological conditions. After one year of follow up the loss was 33.1 per cent in corneal opacity, 45.9 per cent in acute infective keratitis (AIK), 58.5 per cent in regrafts, 28.5 per cent in pseudophakic bullous keratopathy (PBK), 37 per cent in descemetocele, 27 per cent in keratoconus and 35.5 per cent in aphakic bullous keratopathy (ABK) cases. Interpretation & conclusions: The endothelial cell loss was highest in regraft cases which was significant (P<0.05), while the least endothelial cell loss was seen in keratoconus cases. The cell loss was associated with increase in coefficient of variation (CV), i.e. polymegathism and pleomorphism. Inspite of this polymegathism and pleomorphism, the clarity of the graft was maintained. PMID:27121519

  10. An Application of Qualitative Risk Analysis as a Tool Adopted by Public Organizations for Evaluating “Green Projects”

    Directory of Open Access Journals (Sweden)

    Maurizio Lanfranchi

    2015-08-01

    Full Text Available This paper intends to explore the application of Qualitative Risk Analysis in evaluating the risk level associated with several public projects based on urban and peri-urban agriculture as a model of sustainable development of a territory. Therefore, urban agriculture is seen as an experimental model through which we can analyze the interaction between local institutions and citizens, as well as being a marketing tool to promote sustainability aspects linked to the territory. To this end, after a bibliographic review on the Qualitative Risk Analysis and the involvement of stakeholders in decisions relating to the public sector, a valuation of certain projects on the theme of urban and peri-urban agriculture, advanced by the local public Administration will be shown. The analysis proceeds with the classification of projects according to defined risk categories and their graphical representation through probability-impact matrix. The matrix shows that the data scores and the ranking vary significantly for each of the different projects involved. In this respect, the main purpose of this paper is to reveal how the success of a marketing policy based on the concept of sustainable marketing for promoting the territory depends, in many cases, not only on the characteristics of the territory analyzed, but also on the level of “riskiness” associated with the projects. Consequently, the empirical results of the paper can be a guide for public organizations, dealing with a plurality of projects but with limited resources, to assess and to prioritize projects using the level of “riskiness” as a criterion. Furthermore, economic resources could be directed to manage projects after taking into account the relevant risk ranking.

  11. Integrated Geophysical Methods Applied to Geotechnical and Geohazard Engineering: From Qualitative to Quantitative Analysis and Interpretation

    Science.gov (United States)

    Hayashi, K.

    2014-12-01

    The Near-Surface is a region of day-to-day human activity on the earth. It is exposed to the natural phenomena which sometimes cause disasters. This presentation covers a broad spectrum of the geotechnical and geohazard ways of mitigating disaster and conserving the natural environment using geophysical methods and emphasizes the contribution of geophysics to such issues. The presentation focusses on the usefulness of geophysical surveys in providing information to mitigate disasters, rather than the theoretical details of a particular technique. Several techniques are introduced at the level of concept and application. Topics include various geohazard and geoenvironmental applications, such as for earthquake disaster mitigation, preventing floods triggered by tremendous rain, for environmental conservation and studying the effect of global warming. Among the geophysical techniques, the active and passive surface wave, refraction and resistivity methods are mainly highlighted. Together with the geophysical techniques, several related issues, such as performance-based design, standardization or regularization, internet access and databases are also discussed. The presentation discusses the application of geophysical methods to engineering investigations from non-uniqueness point of view and introduces the concepts of integrated and quantitative. Most geophysical analyses are essentially non-unique and it is very difficult to obtain unique and reliable engineering solutions from only one geophysical method (Fig. 1). The only practical way to improve the reliability of investigation is the joint use of several geophysical and geotechnical investigation methods, an integrated approach to geophysics. The result of a geophysical method is generally vague, here is a high-velocity layer, it may be bed rock, this low resistivity section may contain clayey soils. Such vague, qualitative and subjective interpretation is not worthwhile on general engineering design works

  12. Life impact of ankle fractures: Qualitative analysis of patient and clinician experiences

    Directory of Open Access Journals (Sweden)

    McPhail Steven M

    2012-11-01

    Full Text Available Abstract Background Ankle fractures are one of the more commonly occurring forms of trauma managed by orthopaedic teams worldwide. The impacts of these injuries are not restricted to pain and disability caused at the time of the incident, but may also result in long term physical, psychological, and social consequences. There are currently no ankle fracture specific patient-reported outcome measures with a robust content foundation. This investigation aimed to develop a thematic conceptual framework of life impacts following ankle fracture from the experiences of people who have suffered ankle fractures as well as the health professionals who treat them. Methods A qualitative investigation was undertaken using in-depth semi-structured interviews with people (n=12 who had previously sustained an ankle fracture (patients and health professionals (n=6 that treat people with ankle fractures. Interviews were audio-recorded and transcribed. Each phrase was individually coded and grouped in categories and aligned under emerging themes by two independent researchers. Results Saturation occurred after 10 in-depth patient interviews. Time since injury for patients ranged from 6 weeks to more than 2 years. Experience of health professionals ranged from 1 year to 16 years working with people with ankle fractures. Health professionals included an Orthopaedic surgeon (1, physiotherapists (3, a podiatrist (1 and an occupational therapist (1. The emerging framework derived from patient data included eight themes (Physical, Psychological, Daily Living, Social, Occupational and Domestic, Financial, Aesthetic and Medication Taking. Health professional responses did not reveal any additional themes, but tended to focus on physical and occupational themes. Conclusions The nature of life impact following ankle fractures can extend beyond short term pain and discomfort into many areas of life. The findings from this research have provided an empirically derived

  13. Complementary and alternative medicine use among older Australian women - a qualitative analysis

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    McLaughlin Deirdre

    2012-04-01

    Full Text Available Abstract Background The use of complementary and alternative medicines (CAM among older adults is an emerging health issue, however little is known about older people's experiences of using CAM and the cultural, geographical and other determinants of CAM use in this population. This study used qualitative methods to explore older women's views of CAM and reasons for their use of CAM. Participants for the project were drawn from the Australian Longitudinal Study on Women's Health (ALSWH 1921-1926 birth cohort. Women who responded positively to a question about CAM use in Survey 5 (2008 of the ALSWH were invited to participate in the study. A total of 13 rural and 12 urban women aged between 83 and 88 years agreed to be interviewed. Results The women expressed a range of views on CAM which fell into three broad themes: "push" factors such as dissatisfaction with conventional health services, "pull" factors which emphasised the positive aspects of choice and self-care in health matters, and barriers to CAM use. Overall, the "push' factors did not play a major role in the decision to use CAM, rather this was driven by "pull" factors related to health care self-responsibility and being able to source positive information about types of CAM. A number of barriers were identified such as access difficulties associated with increased age, limited mobility and restricted transport options, as well as financial constraints. Conclusions CAM use among older women was unlikely to be influenced by aspects of conventional health care ("push factors", but rather was reflective of the personal beliefs of the women and members of their close social networks ("pull factors". While it was also apparent that there were differences between the rural and urban women in their use of CAM, the reasons for this were mainly due to the difficulties inherent in accessing certain types of CAM in rural areas.

  14. A Qualitative Content Analysis of Spirituality and Religiosity amongst Greek COPD Patients

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    Efthymios Tzounis

    2016-03-01

    Full Text Available Chronic Obstructive Pulmonary Disease (COPD is a chronic and common disease throughout the world. Spiritual/religious beliefs are often central to patients with serious illnesses and could serve as a resource for coping with such illnesses. A qualitative methodology was chosen in order to gain a thorough understanding of 75 (male n = 69, 92%, female n = 6, 8% Greek COPD patients’ perceptions of spirituality and religiosity and explore the importance of practicing their beliefs while 25 patients refused to participate in the study. The fewer female participant patients in the study are related to the lower percentage of women suffering from COPD in Greece, which can be further linked to the low smoking habit of women. A total of four patients (5.3% stated that they had no religious or spiritual understanding of their life; 41 (54.7% reported a religious belief; eight (10.7% told of a spiritual belief; and 22 (29.3% of the participants reported both a religious and a spiritual belief. Faith in the will of God seems to be a particularly strong feature of patients’ beliefs. Praying and church attendance were more likely to confirm the importance of practicing their beliefs in their daily lives but COPD seems to prevent patients from regular churchgoing. Religion and spirituality were found to be helpful while patients did not seem to have unrealistic expectations from God when dealing with illness. When asked, participants defined spirituality as “happiness”, “love”, “our God”, “the spirit”, and as an act of altruism. Adopting a more holistic perspective for COPD patients in the clinical setting, spirituality and religiosity can offer suggestions for interventions related to their health issues.

  15. Primary care nurses struggle with lifestyle counseling in diabetes care: a qualitative analysis

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    Elwyn Glyn

    2010-05-01

    Full Text Available Abstract Background Patient outcomes are poorly affected by lifestyle advice in general practice. Promoting lifestyle behavior change require that nurses shift from simple advice giving to a more counseling-based approach. The current study examines which barriers nurses encounter in lifestyle counseling to patients with type 2 diabetes. Based on this information we will develop an implementation strategy to improve lifestyle behavior change in general practice. Method In a qualitative semi-structured study, twelve in-depth interviews took place with nurses in Dutch general practices involved in diabetes care. Specific barriers in counseling patients with type 2 diabetes about diet, physical activity, and smoking cessation were addressed. The nurses were invited to reflect on barriers at the patient and practice levels, but mainly on their own roles as counselors. All interviews were audio-recorded and transcribed. The data were analyzed with the aid of a predetermined framework. Results Nurses felt most barriers on the level of the patient; patients had limited knowledge of a healthy lifestyle and limited insight into their own behavior, and they lacked the motivation to modify their lifestyles or the discipline to maintain an improved lifestyle. Furthermore, nurses reported lack of counseling skills and insufficient time as barriers in effective lifestyle counseling. Conclusions The traditional health education approach is still predominant in primary care of patients with type 2 diabetes. An implementation strategy based on motivational interviewing can help to overcome 'jumping ahead of the patient' and promotes skills in lifestyle behavioral change. We will train our nurses in agenda setting to structure the consultation based on prioritizing the behavior change and will help them to develop social maps that contain information on local exercise programs.

  16. Perceptual analysis of women on tubectomy and other family planning services: a qualitative study

    Directory of Open Access Journals (Sweden)

    Ruchi Kalra

    2015-02-01

    Full Text Available Background: In our country India, Population explosion has become a major concern to all. As per NHFS 3 report, in MP 44.3%, adopted the female sterilization other methods like male sterilization 1.3%, Intrauterine devices 0.7% and pills users were 1.7%, condom 4.8%. The study probed into the reasons of female sterilization as the method of choice and to know ideas of other temporary contraceptives and male sterilization. Methods: In the study qualitative technique was adopted to understand the perception of participants. FGD's and in-depth interviews were conducted with residents of Ratua village between Nov 2011 - April 2012 to explore the gaps. 52 women participated in the study. They were between 20-40 years, married and had children. Results: The interview transcripts were thematically analysed. All the participants knew tubectomy operation either through health care workers, friends, relatives or media. They thought it as a better and safer way to prevent unwanted pregnancy as compared to temporary ways and male sterilization. Economic incentives were looked up as insufficient motivation for undergoing the procedure. The decision was combined and women had less freedom in decision making. All felt strongly need of having at least one son for the family progression and care provider to them during the old age. They were hesitant to use temporary methods as they had misconceptions about the adverse effects. The male sterilization was unacceptable to all the participant as they thought it causes weakness and would adversely affect the physical work performance of their husband Conclusions: Participants in the study were hesitant to use temporary contraceptive methods for the fear of adverse effects. Multiple approaches to educate and transform their misconceptions of contraceptive methods and male sterilization should be adopted. [Int J Reprod Contracept Obstet Gynecol 2015; 4(1.000: 94-99

  17. Workers' exposure to noise inside complex acoustic environments in Canada : a qualitative analysis

    Energy Technology Data Exchange (ETDEWEB)

    Hertil, S. [Inst. of Noise Control Engineers, Calgary, AB (Canada)

    2007-07-01

    Occupational noise regulations in Canada have limits on the permissible exposure of a worker to noise in the workplace. These limits are set in terms of an 8-hour average sound level of 85 dBA, with limits of 135 dBC on peak sound pressure levels. However, these noise regulations do not specify any qualitative limits on noise levels and are not clear enough for providing adequate protection of workers against low-frequency noise and inaudible air vibrations and infrasound commonly found in heavy industrial sites and power generation plants. This paper presented actual sound level data that was collected at various power plants in Canada during the period 1995 - 2005. It was shown that noise in the work place includes inaudible low-frequency noise and air vibrations that are impossible to detect by dosimeters or type 1 and type 2 hand held sound level meters. The paper described exposure to noise inside a small, gas-fired generator hall; exposure to noise inside a large steam processing plant; exposure to noise in the area of roller ball mills; noise quality inside a steam processing plant; noise quality inside a coal ball mill building; noise quality inside a large water feed pump area; and quality of noise inside a steam turbine hall. The frequencies that are harmful to workers were identified in an effort to design noise control features for machinery or equipment and to develop abatement measures to protect workers operating in complex acoustic environments. It was concluded that noise control is a collective task that should be undertaken by many professionals from all the fields related to health, safety, hearing and hearing conservation. 3 refs., 2 tabs., 6 figs.

  18. Perspectives about family meals from single-headed and dual-headed households: a qualitative analysis.

    Science.gov (United States)

    Berge, Jerica M; Hoppmann, Caroline; Hanson, Carrie; Neumark-Sztainer, Dianne

    2013-12-01

    Cross-sectional and longitudinal research has shown that family meals are protective for adolescent healthful eating behaviors. However, little is known about what parents think of these findings and whether parents from single- vs dual-headed households have differing perspectives about the findings. In addition, parents' perspectives regarding barriers to applying the findings on family meals in their own homes and suggestions for more widespread adoption of the findings are unknown. The current study aimed to identify single- and dual-headed household parents' perspectives regarding the research findings on family meals, barriers to applying the findings in their own homes, and suggestions for helping families have more family meals. The current qualitative study included 59 parents who participated in substudy of two linked multilevel studies-EAT 2010 (Eating and Activity in Teens) and Families and Eating and Activity in Teens (F-EAT). Parents (91.5% female) were racially/ethnically and socioeconomically diverse. Data were analyzed using a grounded theory approach. Results from the current study suggest that parents from both single- and dual-headed households have similar perspectives regarding why family meals are protective for healthful eating habits for adolescents (eg, provides structure/routine, opportunities for communication, connection), but provide similar and different reasons for barriers to family meals (eg, single-headed=cost vs dual-headed=lack of creativity) and ideas and suggestions for how to increase the frequency of family meals (eg, single-headed=give fewer options vs dual-headed=include children in the meal preparation). Findings can help inform public health intervention researchers and providers who work with adolescents and their families to understand how to approach discussions regarding reasons for having family meals, barriers to carrying out family meals, and ways to increase family meals depending on family structure. PMID

  19. A qualitative phytochemical analysis and a comparative study of the antibactrial activity of Retama stalks (raetam

    Directory of Open Access Journals (Sweden)

    Hamza Bensaci

    2016-03-01

    Full Text Available The present work is aimed mainly to investigate and compare the antibacterial activities of methanolic, diethyl ether and ethyl acetate extracts of retama on Escherichia coli, Salmonella, Proteus mirabilis and Staphylococcus aureu using well difusion method.The results of study showed a significant effect on all bacterial species except Proteus mirabilis. The preliminary test of retama constituents revealed the presence of active material : Resins, Volatil oils, Coumarins, Terpenes, Phenols, Tannins, Alkaloids, Saponins, Cardiac glycosides, and Flavons. The highest Inhibition rate of Salmonella is 16 mm at the concentration 100 mg/ml, while the lowest inhibition rate was 8 mm for Escherichia coli at concentration 1 mg/ ml in methanolic extract. The results obtained in the present study suggest that the retama stalks (broom broom can be used in treating deseases caused by the tested organisms. Further chemical and pharmacological investigations may be carried out to isolate and identify the chemical constituents in the selected plants responsible for the antimicrobial activity.

  20. Comparison of descriptive sensory analysis and chemical analysis for oxidative changes in milk

    DEFF Research Database (Denmark)

    Hedegaard, R V; Kristensen, D; Nielsen, Jacob Holm;

    2006-01-01

    products. The milk samples were evaluated in parallel by descriptive sensory analysis by a trained panel, and the correlation between the chemical analysis and the descriptive sensory analysis was evaluated. The fatty acid composition of the 3 types of milk was found to influence the oxidative and......Oxidation in 3 types of bovine milk with different fatty acid profiles obtained through manipulation of feed was evaluated by analytical methods quantifying the content of potential antioxidants, the tendency of formation of free radicals, and the accumulation of primary and secondary oxidation...... lipolytic changes occurring in the milk during chill storage for 4 d. Sensory analysis and chemical analysis showed high correlation between the typical descriptors for oxidation such as cardboard, metallic taste, and boiled milk and specific chemical markers for oxidation such as hexanal. Notably, primary...

  1. QUALITY ASSURANCE GUIDELINES FOR LABORATORIES PERFORMING FORENSIC ANALYSIS OF CHEMICAL TERRORISM

    Science.gov (United States)

    The Scientific Working Group on Forensic Analysis of Chemical Terrorism (SWGFACT) has developed the following quality assurance guidelines to provide laboratories engaged in forensic analysis of chemical evidence associated with terrorism a framework to implement a quality assura...

  2. A model for reliability analysis and calculation applied in an example from chemical industry

    Directory of Open Access Journals (Sweden)

    Pejović Branko B.

    2010-01-01

    Full Text Available The subject of the paper is reliability design in polymerization processes that occur in reactors of a chemical industry. The designed model is used to determine the characteristics and indicators of reliability, which enabled the determination of basic factors that result in a poor development of a process. This would reduce the anticipated losses through the ability to control them, as well as enabling the improvement of the quality of production, which is the major goal of the paper. The reliability analysis and calculation uses the deductive method based on designing of a scheme for fault tree analysis of a system based on inductive conclusions. It involves the use standard logical symbols and rules of Boolean algebra and mathematical logic. The paper eventually gives the results of the work in the form of quantitative and qualitative reliability analysis of the observed process, which served to obtain complete information on the probability of top event in the process, as well as objective decision making and alternative solutions.

  3. Analysis of the chemical equilibrium of combustion at constant volume

    Directory of Open Access Journals (Sweden)

    Marius BREBENEL

    2014-04-01

    Full Text Available Determining the composition of a mixture of combustion gases at a given temperature is based on chemical equilibrium, when the equilibrium constants are calculated on the assumption of constant pressure and temperature. In this paper, an analysis of changes occurring when combustion takes place at constant volume is presented, deriving a specific formula of the equilibrium constant. The simple reaction of carbon combustion in pure oxygen in both cases (constant pressure and constant volume is next considered as example of application, observing the changes occurring in the composition of the combustion gases depending on temperature.

  4. Probabilistic Approach to Risk Analysis of Chemical Spills at Sea

    Institute of Scientific and Technical Information of China (English)

    Magda Bogalecka; Krzysztof Kolowrocki

    2006-01-01

    Risk analysis of chemical spills at sea and their consequences for sea environment are discussed. Mutual interactions between the process of the sea accident initiating events, the process of the sea environment threats, and the process of the sea environment degradation are investigated. To describe these three particular processes, the separate semi-Markov models are built. Furthermore, these models are jointed into one general model of these processes interactions.Moreover, some comments on the method for statistical identification of the considered models are proposed.

  5. Chemical phase analysis of seed mediated synthesized anisotropic silver nanoparticles

    Science.gov (United States)

    Bharti, Amardeep; Singh, Suman; Singla, M. L.; Goyal, Navdeep

    2015-08-01

    Noble-metal nanoparticles are of great interest because of its broad applications almost in every stream (i.e. biology, chemistry and engineering) due to their unique size/shape dependant properties. In this paper, chemical phase of seed mediated synthesized anisotropic silver nanoparticle (AgNPs) has been investigated via fourier transform infrared spectroscopy (FTIR) and thermogravimetric analysis (TGA). These nanaoparticles were synthesized by seed-growth method controlled by urea and dextrose results to highly stable 12-20 nm particle size revealed by zeta potential and transmission electron microscopy (TEM).

  6. Chemical phase analysis of seed mediated synthesized anisotropic silver nanoparticles

    International Nuclear Information System (INIS)

    Noble-metal nanoparticles are of great interest because of its broad applications almost in every stream (i.e. biology, chemistry and engineering) due to their unique size/shape dependant properties. In this paper, chemical phase of seed mediated synthesized anisotropic silver nanoparticle (AgNPs) has been investigated via fourier transform infrared spectroscopy (FTIR) and thermogravimetric analysis (TGA). These nanaoparticles were synthesized by seed-growth method controlled by urea and dextrose results to highly stable 12-20 nm particle size revealed by zeta potential and transmission electron microscopy (TEM)

  7. Physcio chemical analysis of browning inhibitors treated solanum turberosum powder

    International Nuclear Information System (INIS)

    White potatoes (Solanum turberosum) were procured from agriculture Research Institute Tarnab Farm Peshawar to use for the preparation of potato powder. The process involves sorting. Washing, peeling slicing, blanching, treating with poly phenol oxidase inhibitors, dehydration, grinding and packing. All these parameters used in process were standardized. Chemical analysis of fresh potato and potato powder were carried out. Microbiological examination, functional properties and storage life studies of the potato powder were also performed. The product prepared by drying in cabinet dryer at 55 C for 7 hours was off white colour potatoes chips which was grinded to make off white potato powder. The potato powder possessed taste and texture. (author)

  8. Crystal-Chemical Analysis of Soil at Rocknest, Gale Crater

    Science.gov (United States)

    Morrison, S. M.; Downs, R. T.; Blake, D. F.; Bish, D. L.; Ming, D. W.; Morris, R. V.; Yen, A. S.; Chipera, S. J.; Treiman, A. H.; Vaniman, D. T.; Gellert, R.; Achilles, C. N.; Rampe, E. B.; Bristow, T. F.; Crisp, J. A.; Sarrazin, P. C.; DesMarais, D. J.; Morookian, J. M.; Anderson, R. C.

    2013-01-01

    The CheMin instrument on the Mars Science Laboratory rover Curiosity performed X-ray diffraction analysis on Martian soil [1] at Rocknest in Gale Crater. In particular, crystalline phases from scoop 5 were identified and analyzed with the Rietveld method [2]. Refined unit-cell parameters are reported in Table 1. Comparing these unit-cell parameters with those in the literature provides an estimate of the chemical composition of the crystalline phases. For instance, Fig. 1 shows the Mg-content of Fa-Fo olivine as a function of the b unit-cell parameter using literature data. Our refined b parameter is indicated by the black triangle.

  9. Qualitative Amino Acid Analysis of Small Peptides by GC/MS.

    Science.gov (United States)

    Mabbott, Gary A.

    1990-01-01

    Experiments designed to help undergraduate students gain experience operating instruments and interpreting gas chromatography and mass spectrometry data are presented. Experimental reagents, procedures, analysis, and probable results are discussed. (CW)

  10. HANDLING IMPRECISION IN QUALITATIVE DATA WAREHOUSE: URBAN BUILDING SITES ANNOYANCE ANALYSIS USE CASE

    OpenAIRE

    Amanzougarene, F.; M. Chachoua; ZEITOUNI,K

    2013-01-01

    Data warehouse means a decision support database allowing integration, organization, historisation, and management of data from heterogeneous sources, with the aim of exploiting them for decision-making. Data warehouses are essentially based on multidimensional model. This model organizes data into facts (subjects of analysis) and dimensions (axes of analysis). In classical data warehouses, facts are composed of numerical measures and dimensions which characterize it. Dimensions are ...

  11. QUALITATIVE PHYTOCHEMICAL ANALYSIS OF ETHANOMEDICINALLY IMPORTANT PLANT CAPPARIS APHYLA ROTH (CAPPARIDACEAE FROM AKOLA DISRICT, MAHARASHTRA, INDIA

    Directory of Open Access Journals (Sweden)

    Nitin A Khandare

    2012-04-01

    Full Text Available The present paper is focus on preliminary analysis of Capparis aphyla Roth., (Caper plant from Akola District Maharashtra , India. The plant has tremendous ethnic medicinal value. Quantitative analysis of Capparis aphyla was done in various solvents. It showed presence of maximum phytoconstituents in aqueous extract. The major phytochemicals present in this plant include Alkaloids, Flavonoids, Tannins, Saponin and Phenolic while steroids are not detected in any solvent system.

  12. Exploring the Decision Making Process in Statistical Data Analysis: A Qualitative Study of Quantitative Researchers

    OpenAIRE

    Ho, Timothy

    2015-01-01

    Quantitative data analysis is a cognitively demanding process. Inferences from quantitative analyses are often used to inform matters of public policy and to learn about social phenomena. However, as statistical analysis is typically conducted behind closed office doors, little is known about how analysts decide on the final statistical model that important policy decisions rely upon for determining the effectiveness of programs and policies. As social programming becomes increasingly reliant...

  13. A qualitative analysis of hate speech reported to the Romanian National Council for Combating Discrimination (2003‑2015

    Directory of Open Access Journals (Sweden)

    Adriana Iordache

    2015-12-01

    Full Text Available The article analyzes the specificities of Romanian hate speech over a period of twelve years through a qualitative analysis of 384 Decisions of the National Council for Combating Discrimination. The study employs a coding methodology which allows one to separate decisions according to the group that was the victim of hate speech. The article finds that stereotypes employed are similar to those encountered in the international literature. The main target of hate speech is the Roma, who are seen as „dirty“, „uncivilized“ and a threat to Romania’s image abroad. Other stereotypes encountered were that of the „disloyal“ Hungarian and of the sexually promiscuous woman. Moreover, women are seen as unfit for management positions. The article also discusses stereotypes about homosexuals, who are seen as „sick“ and about non-orthodox religions, portrayed as „sectarian“.

  14. Self-care 3 months after attending chronic obstructive pulmonary disease patient education: a qualitative descriptive analysis

    DEFF Research Database (Denmark)

    Mousing, Camilla Askov; Lomborg, Kirsten

    2012-01-01

    life. Talking to health care professionals focused the patients' attention on their newly acquired skills and the research interview made them more aware of their enhanced self-care. Conclusion: Patients' self-care may be enhanced through group education, even though the patients are not always able to...... see the immediate outcome. Some patients may require professional help to implement their newly acquired knowledge and skills in everyday life. A planned dialogue concentrating on self-care in everyday life 3 months after finishing the course may enhance patients' awareness and appraisal of their......Purpose: The authors performed a qualitative descriptive analysis to explore how group patient education influences the self-care of patients with chronic obstructive pulmonary disease. Patients and methods: In the period 2009–2010, eleven patients diagnosed with chronic obstructive pulmonary...

  15. Italian news coverage of radiation in the early decades of the twentieth century: A qualitative and quantitative analysis.

    Science.gov (United States)

    Candela, Andrea; Pasquarè Mariotto, Federico

    2016-02-01

    This work uses a qualitative approach coupled with a quantitative software-based methodology to examine the Italian news media coverage of radiation in the early decades of the twentieth century. We analyze 80 news stories from two of the most influential Italian newspapers from that time: La Stampa (a daily newspaper) and La Domenica del Corriere (an Italian Sunday supplement). While much of previous research on media coverage of scientific topics was generally focused on present-day news, our work revolves around the ground-breaking discovery of X-rays and radioactivity at the dawn of the last century. Our analysis aims to identify journalistic frames in the news coverage of radiation that journalists might have used to emphasize the benefits (or the risks) of the new discoveries. We also hypothesize how this kind of news coverage might have influenced public perception of technological, commercial, and public health applications of the new scientific advancements. PMID:25186561

  16. “Die Another Day”: A Qualitative Analysis of Hmong Experiences with Kidney Stones

    Directory of Open Access Journals (Sweden)

    Kathleen A. Culhane-Pera

    2007-01-01

    Full Text Available Background: A chart review at a urological office revealed that Hmong patients present with higher rates of kidney stones, uric acid stones, and complications from kidney stones than non-Hmong patients. In order to ultimately redress this health disparity, a conferenceof Hmong and non-Hmong health care providers decided that we needed to first understand the pertinent social, cultural, economic, and biological factors contributing to the disparity. This research project sought to elicit Hmong patients and family members’explanatory models, decision-making processes, and experiences with the health care system.Methods: We conducted in–depth interviews with 10 Hmong kidney stone patients, 11 family members of 9 patients, and 4 traditional healers. All 10 patients had received urological interventions, including ureteroscopy (8, percutaneous lithotomy (5 and nephrectomy (2. Some patients had postponed medical assistance (6 and had refusedprocedures (4. We qualitatively analyzed the transcribed and translated interviews with an Excel spread sheet and N6 computer software. Results were discussed with patients and a community advisory council.Results: Hmong concepts of kidney function and explanatory models of kidney stones are a blend of traditional and biomedical concepts. Kidney stones are understood as acute health problems caused by hard substances in water and food that stick to the kidney, which weak kidneys cannot excrete. Kidney stone sufferers do not know they have stones until they pass a stone or they see stones on X-rays, as pain or hematuria are non-specific symptoms. They prefer medications, including herbal medicines, to invasive urologicalprocedures. In making decisions about urological interventions, Hmong patients balance fear of disease (pain and renal failure with fear of doctors (complications from interventions and anesthesia. While patients have variable balance points to accept interventions, the basic philosophy of

  17. Laser-induced breakdown spectroscopy for in situ qualitative and quantitative analysis of mineral ores

    International Nuclear Information System (INIS)

    In this work, the potential of laser-induced breakdown spectroscopy (LIBS) for discrimination and analysis of geological materials was examined. The research was focused on classification of mineral ores using their LIBS spectra prior to quantitative determination of copper. Quantitative analysis is not a trivial task in LIBS measurement because intensities of emission lines in laser-induced plasmas (LIP) are strongly affected by the sample matrix (matrix effect). To circumvent this effect, typically matrix-matched standards are used to obtain matrix-dependent calibration curves. If the sample set consists of a mixture of different matrices, even in this approach, the corresponding matrix has to be known prior to the downstream data analysis. For this categorization, the multielemental character of LIBS spectra can be of help. In this contribution, a principal component analysis (PCA) was employed on the measured data set to discriminate individual rocks as individual matrices against each other according to their overall elemental composition. Twenty-seven igneous rock samples were analyzed in the form of fine dust, classified and subsequently quantitatively analyzed. Two different LIBS setups in two laboratories were used to prove the reproducibility of classification and quantification. A superposition of partial calibration plots constructed from the individual clustered data displayed a large improvement in precision and accuracy compared to the calibration plot constructed from all ore samples. The classification of mineral samples with complex matrices can thus be recommended prior to LIBS system calibration and quantitative analysis. - Highlights: • Twenty seven igneous rocks were measured on different LIBS systems. • Principal component analysis (PCA) was employed for classification. • The necessity of the classification of the rock (ore) samples prior to the quantification analysis is stressed. • Classification based on the whole LIP spectra and

  18. Naturally-Emerging Technology-Based Leadership Roles in Three Independent Schools: A Social Network-Based Case Study Using Fuzzy Set Qualitative Comparative Analysis

    Science.gov (United States)

    Velastegui, Pamela J.

    2013-01-01

    This hypothesis-generating case study investigates the naturally emerging roles of technology brokers and technology leaders in three independent schools in New York involving 92 school educators. A multiple and mixed method design utilizing Social Network Analysis (SNA) and fuzzy set Qualitative Comparative Analysis (FSQCA) involved gathering…

  19. Quantitative and Qualitative Analysis of Reported Dreams and the Problem of Double Hermeneutics in Clinical Research

    Directory of Open Access Journals (Sweden)

    Siamak Movahedi

    2012-12-01

    Full Text Available The aim of this article is to show that statistical analysis and hermeneutics are not mutually exclusive. Although statistical analysis may capture some patterns and regularities, statistical methods may themselves generate different types of interpretation and, in turn, give rise to even more interpretations. The discussion is lodged within the context of a quantitative analysis of dream content. I attempted to examine the dialogical texts of reported dreams monologically, but soon found myself returning to dialogic contexts to make sense of statistical patterns. One could cogently argue that the reported statistical relationships in this study, rather than pointing to any interaction among the “signifieds,” speak only to the relationships among the “signifiers” that were being played out through various actors on the analytic or scientific stage, since all of the constructs used in theorizing about, interpreting, and telling dreams come from the same discursive system.

  20. Residual Heat Removal System qualitative probabilistic safety analysis before and after auto closure interlock removal

    International Nuclear Information System (INIS)

    The analysis evaluates the consequences of the removal of the auto closure interlock (ACI) on the Residual Heat Removal System (RHRS) suction/isolation valves at the nuclear power plant. The deletion of the RHRS ACI is in part based on a probabilistic safety analysis (PSA) which justifies the removal based on a criterion of increased availability and reliability. Three different areas to be examined in PSA: the likelihood of an interfacing system LOCA; RHRS availability and reliability; and low temperature overpressurization control. The paper emphasizes particularly the RHRS unavailability and reliability evaluation utilizing the current control circuitry configuration and then with the proposed modification to the control circuitry. (author)