44 research outputs found

    Associations of Cognitive Fusion and Pain Catastrophizing with Fibromyalgia Impact through Fatigue, Pain Severity, and Depression: An Exploratory Study Using Structural Equation Modeling

    Get PDF
    Differences in fibromyalgia impact on functioning exist and appear to be influenced by numerous factors, including symptomatology severity, as well as the cognitive profile of the individual. The contribution of these elements, however, tends to be explored in a fragmented manner. To address this issue, we tested a comprehensive structural equation model in which associations of cognitive fusion and pain catastrophizing with function limitations are investigated through fibromyalgia symptomatology (i.e., fatigue, pain severity, and depression) in 231 women with fibromyalgia. In the model, cognitive fusion and two catastrophizing components (magnification and helplessness) were associated with poorer functioning indirectly through fibromyalgia symptomatology. Only the rumination component of catastrophizing had a direct association with functional limitations. All fibromyalgia symptoms were linked to increased functional limitations. A parsimonious model with significant associations only obtained an excellent fit (S-B χ2 = 774.191, df = 543, p < 0.001; CFI = 0.943; RMSEA = 0.043; CAIC = −2724.04) and accounted for 50% of the variance of functional limitations. These results suggest that the relationship between psychological cognitive processes, fibromyalgia symptomatology, and functional limitations is complex and support the need for comprehensive models such as the present. The findings are discussed in the context of personalized psychological treatments (i.e., the need to address certain cognitive processes according to the problematic symptomatology or outcome)

    Las propiedades psicométricas del Cuestionario de Expectativas sobre el Parto en una muestra de mujeres españolas gestantes

    Get PDF
    Childbirth expectations during pregnancy are important factors related to birth satisfaction. The aim of this study is to validate the Childbirth Expectation Questionnaire (CEQ) in a sample of Spanish pregnant women; 231 women responded to the CEQ during their first trimester of pregnancy and 106 of them completed a re-test at the third trimester. Exploratory analyses with 1-to-6 factor solutions were carried out to investigate the internal structure of the CEQ. The three-factor solution (spousal support and control, medical support and environment, and labor pain and distress) showed the best properties in terms of model fit, number of items per factor, and item loadings. The internal consistency of scales was also good (.79 ≥ α ≤ .93). Test-retest analyses showed significant intercorrelations between expectations from the first to the third trimester of pregnancy. There is a need to assess childbirth expectations, and our results suggest that the CEQ is a valid and useful instrument to be used among Spanish pregnant women.Las expectativas sobre el parto (evaluadas durante el embarazo) constituyen factores relevantes relacionados con la satisfacción del parto. El objetivo de este estudio es validar el Cuestionario de Expectativas sobre el Parto (CEQ según las siglas del nombre inglés) en una muestra de gestantes españolas. Un total de 231 mujeres cumplimentaron el CEQ durante el primer trimestre del embarazo y 106 de ellas cumplimentaron de nuevo el instrumento en el tercer trimestre. Se realizaron análisis exploratorios con soluciones factoriales de 1 a 6 factores para analizar la estructura interna del CEQ. La solución de tres factores (apoyo de la pareja y control, apoyo médico y ambiente y dolor durante el parto y malestar) mostró las mejores propiedades en cuanto a ajuste del modelo, número de ítems por factor y peso de los ítems. La consistencia interna de las escalas también fue buena (.79 ≥ α ≤ .93). Los análisis test-retest mostraron intercorrelaciones significativas entre las expectativas del primer y tercer trimestre del embarazo. Atendiendo a la necesidad de evaluar las expectativas sobre el parto, nuestros resultados sugieren que el CEQ es un instrumento válido y útil para ser utilizado en las gestantes españolas

    Exploring the contextual role of pain severity as a moderator of the relationship between activity patterns and the physical and mental functioning of women with fibromyalgia

    Get PDF
    Introduction In past years, and mostly due to contextual psychological therapies, it has been argued that particular behavioural patterns may be useful in certain contexts, but not in others. The goal of this study has been to explore whether pain severity is indeed a contextual factor influencing the relationship between two controversial activity patterns, namely pacing and persistence, and functionality in people with fibromyalgia. Methods Participants were 231 women diagnosed with fibromyalgia. A multivariate regression was conducted to explore the moderating role of pain severity in the relationship between activity patterns and outcomes (i.e. fibromyalgia impact and depressive symptoms). Results Excessive persistence (interaction: t = −2.45, p = 0.015) and pain‐contingent persistence (interaction: t= −2.13, p = 0.034) were more strongly associated with fibromyalgia impact when people experienced less severe pain. Pacing for pain reduction was only significantly related to depressive symptoms at very severe (M = 10) pain levels (interaction: β= −0.18, t= −2.73). Conclusions The results here reported suggest that the context in which behaviour occurs is relevant when the utility of certain behaviour patterns is considered. The clinical implications of this are clear, as it would justify adapting the recommendations given to patients according to their pain severity status. Significance This manuscript shows that some activity patterns (i.e. pacing to conserve energy for valued activities) might be advisable regardless of pain levels. Conversely, some patterns might be especially recommended (i.e. pain‐reduction pacing) or inadvisable (i.e. excessive and pain‐contingent persistence) depending on pain levels (i.e. severe and mild pain, respectively)

    Activity patterns and functioning. A contextual–functional approach to pain catastrophizing in women with fibromyalgia

    Get PDF
    The psychological flexibility model states that activity patterns are not deemed to be intrinsically functional or dysfunctional; it is considered that underlying factors, such as personal goals and contextual factors, are what will determine their effects on disability. Pain catastrophizing has frequently been associated with several important pain-related outcomes. Despite its recent conceptualization within affective–motivational approaches, its moderating role between activity patterns and dysfunction has not been analyzed. Methods: This study analyzes the moderating role of pain catastrophizing and its dimensions (Pain Catastrophizing Scale) between activity patterns (Activity Patterns Scale) and disease impact (Fibromyalgia Impact Questionnaire—Revised) in 491 women with fibromyalgia. Results: Activity avoidance (p < 0.001), excessive persistence (p < 0.001) and pacing (p < 0.01) patterns were positively associated with fibromyalgia impact. Helplessness shows a moderating role between pain avoidance (B = 0.100, t =2.30, p = 0.021, [0.01, 0.18]), excessive persistence (B = −0.09, t = −2.24, p = 0.02, [−0.18, −0.01]), pain persistence (B = −0.10, t = −2.04, p = 0.04, [−0.19, −0.004]) and functioning. Conclusion: Helplessness (within pain catastrophizing) is a relevant variable within psychological flexibility models applied to activity patterns. Specifically, pain avoidance is especially dysfunctional in patients with high helplessness. To improve excessive persistence and pain persistence, it is necessary to reduce helplessness before regulating activity patterns

    Is the association between postpartum depression and early maternal–infant relationships contextually determined by avoidant coping in the mother?

    Get PDF
    This study analyzes the moderating role of avoidant coping (in early pregnancy) in the relationship between postpartum depressive (PPD) symptoms and maternal perceptions about mother–baby relations and self-confidence. Participants were 116 low-risk obstetric mothers (mean age = 31.2 years, SD = 3.95, range 23–42) who received care and gave birth at a Spanish public hospital. Measurements were made at two points in time: at first trimester of pregnancy (maternal avoidance coping) and four months after childbirth (PPD and maternal perceptions). Avoidant coping was associated with the perception of the baby as irritable and unstable (p = 0.003), including irritability during lactation (p = 0.041). Interaction effects of avoidant coping and postpartum depression were observed on the perception of the baby as irritable (p = 0.031) and with easy temperament (p = 0.002). Regarding the mother’s self-confidence, avoidant coping was related to a lack of security in caring for the baby (p < 0.001) and had a moderating effect between PPD and mother’s self-confidence (i.e., lack of security in caring for the baby, p =0.027; general security, p = 0.007). Interaction effects showed that the use of avoidant coping in the mother exacerbated the impact of PPD on the early mother–infant relationship

    Lateral flow immunoassay for on-site detection of Xanthomonas arboricola pv. Pruni in symptomatic field samples

    Full text link
    [EN] Xanthomonas arboricola pv. pruni is a quarantine pathogen and the causal agent of the bacterial spot disease of stone fruits and almond, a major threat to Prunus species. Rapid and specific detection methods are essential to improve disease management, and therefore a prototype of a lateral flow immunoassay (LFIA) was designed for the detection of X. arboricola pv. pruni in symptomatic field samples. It was developed by producing polyclonal antibodies which were then combined with carbon nanoparticles and assembled on nitrocellulose strips. The specificity of the LFIA was tested against 87 X. arboricola pv. pruni strains from different countries worldwide, 47 strains of other Xanthomonas species and 14 strains representing other bacterial genera. All X. arboricola pv. pruni strains were detected and cross-reactions were observed only with four strains of X. arboricola pv. corylina, a hazelnut pathogen that does not share habitat with X. arboricola pv. pruni. The sensitivity of the LFIA was assessed with suspensions from pure cultures of three X. arboricola pv. pruni strains and with spiked leaf extracts prepared from four hosts inoculated with this pathogen (almond, apricot, Japanese plum and peach). The limit of detection observed with both pure cultures and spiked samples was 10(4) CFU ml(-1). To demonstrate the accuracy of the test, 205 samples naturally infected with X. arboricola pv. pruni and 113 samples collected from healthy plants of several different Prunus species were analyzed with the LFIA. Results were compared with those obtained by plate isolation and real time PCR and a high correlation was found among techniques. Therefore, we propose this LFIA as a screening tool that allows a rapid and reliable diagnosis of X. arboricola pv. pruni in symptomatic plants.The work was supported by the following: Instituto Nacional de Tecnologia Agraria y Alimentaria, Project RTA-2011-00140-C03-01 (http://www.inia.es), PLS MTG EMN MML; Instituto Nacional de Tecnologia Agraria y Alimentaria, FPI-INIA grant (http://www.inia.es), PLS; Generalitat Valenciana (Prometeo II 2014/040) (http://www.gva.es), PN RP AM; Ministerio de Economia y Competitividad (MINECO) (CTQ2013-45875R) (http://www.mineco.gob.es), PN RP AM; European Social Fund, PLS MTG EMN MML; and European Regional Development Fund, PLS MTG EMN MML.López-Soriano, P.; Noguera Murray, PS.; Gorris, MT.; Puchades, R.; Maquieira Catala, A.; Marco-Noales, E.; López, M. (2017). Lateral flow immunoassay for on-site detection of Xanthomonas arboricola pv. Pruni in symptomatic field samples. PLoS ONE. 12(4):1-13. https://doi.org/10.1371/journal.pone.0176201113124Tjou-Tam-Sin, N. N. A., van de Bilt, J. L. J., Bergsma-Vlami, M., Koenraadt, H., Naktuinbouw, J. W., van Doorn, J., … Martin, W. S. (2012). First Report of Xanthomonas arboricola pv. pruni in Ornamental Prunus laurocerasus in the Netherlands. Plant Disease, 96(5), 759-759. doi:10.1094/pdis-04-11-0265-pdnPothier, J. F., Vorhölter, F.-J., Blom, J., Goesmann, A., Pühler, A., Smits, T. H. M., & Duffy, B. (2011). The ubiquitous plasmid pXap41 in the invasive phytopathogen Xanthomonas arboricola pv. pruni: complete sequence and comparative genomic analysis. FEMS Microbiology Letters, 323(1), 52-60. doi:10.1111/j.1574-6968.2011.02352.xPalacio-Bielsa, A., Cubero, J., Cambra, M. A., Collados, R., Berruete, I. M., & López, M. M. (2010). Development of an Efficient Real-Time Quantitative PCR Protocol for Detection ofXanthomonas arboricolapv. pruni inPrunusSpecies. Applied and Environmental Microbiology, 77(1), 89-97. doi:10.1128/aem.01593-10Xanthomonas arboricola pv. pruni. (2006). EPPO Bulletin, 36(1), 129-133. doi:10.1111/j.1365-2338.2006.00925.xPagani MC. An ABC transporter protein and molecular diagnoses of Xanthomonas arboricola pv. pruni causing bacterial spot of stone fruits. Raleigh, North Carolina, USA: North Carolina State University, PhD thesis. 2004; Online, http://repository.lib.ncsu.edu/ir/bitstream/1840.16/4540/1/etd.pdfPark, S. Y., Lee, Y. S., Koh, Y. J., Hur, J.-S., & Jung, J. S. (2010). Detection of Xanthomonas arboricola pv. pruni by PCR using primers based on DNA sequences related to the hrp genes. The Journal of Microbiology, 48(5), 554-558. doi:10.1007/s12275-010-0072-3Pothier, J. F., Pagani, M. C., Pelludat, C., Ritchie, D. F., & Duffy, B. (2011). A duplex-PCR method for species- and pathovar-level identification and detection of the quarantine plant pathogen Xanthomonas arboricola pv. pruni. Journal of Microbiological Methods, 86(1), 16-24. doi:10.1016/j.mimet.2011.03.019Ballard, E. L., Dietzgen, R. G., Sly, L. I., Gouk, C., Horlock, C., & Fegan, M. (2011). Development of a Bio-PCR Protocol for the Detection of Xanthomonas arboricola pv. pruni. Plant Disease, 95(9), 1109-1115. doi:10.1094/pdis-09-10-0650Boonham, N., Glover, R., Tomlinson, J., & Mumford, R. (2008). Exploiting generic platform technologies for the detection and identification of plant pathogens. European Journal of Plant Pathology, 121(3), 355-363. doi:10.1007/s10658-008-9284-3Posthuma-Trumpie, G. A., Korf, J., & van Amerongen, A. (2008). Lateral flow (immuno)assay: its strengths, weaknesses, opportunities and threats. A literature survey. Analytical and Bioanalytical Chemistry, 393(2), 569-582. doi:10.1007/s00216-008-2287-2De Boer, S. H., & López, M. M. (2012). New Grower-Friendly Methods for Plant Pathogen Monitoring. Annual Review of Phytopathology, 50(1), 197-218. doi:10.1146/annurev-phyto-081211-172942Thornton, C. R., Groenhof, A. C., Forrest, R., & Lamotte, R. (2004). A One-Step, Immunochromatographic Lateral Flow Device Specific to Rhizoctonia solani and Certain Related Species, and Its Use to Detect and Quantify R. solani in Soil. Phytopathology®, 94(3), 280-288. doi:10.1094/phyto.2004.94.3.280Lane, C. R., Hobden, E., Walker, L., Barton, V. C., Inman, A. J., Hughes, K. J. D., … Barker, I. (2007). Evaluation of a rapid diagnostic field test kit for identification of Phytophthora species, including P. ramorum and P. kernoviae at the point of inspection. Plant Pathology, 56(5), 828-835. doi:10.1111/j.1365-3059.2007.01615.xSafenkova, I., Zherdev, A., & Dzantiev, B. (2012). Factors influencing the detection limit of the lateral-flow sandwich immunoassay: a case study with potato virus X. Analytical and Bioanalytical Chemistry, 403(6), 1595-1605. doi:10.1007/s00216-012-5985-8Safenkova, I. V., Pankratova, G. K., Zaitsev, I. A., Varitsev, Y. A., Vengerov, Y. Y., Zherdev, A. V., & Dzantiev, B. B. (2016). Multiarray on a test strip (MATS): rapid multiplex immunodetection of priority potato pathogens. Analytical and Bioanalytical Chemistry, 408(22), 6009-6017. doi:10.1007/s00216-016-9463-6Braun-Kiewnick, A., Altenbach, D., Oberhänsli, T., Bitterlin, W., & Duffy, B. (2011). A rapid lateral-flow immunoassay for phytosanitary detection of Erwinia amylovora and on-site fire blight diagnosis. Journal of Microbiological Methods, 87(1), 1-9. doi:10.1016/j.mimet.2011.06.015Safenkova, I. V., Zaitsev, I. A., Pankratova, G. K., Varitsev, Y. A., Zherdev, A. V., & Dzantiev, B. B. (2014). Lateral flow immunoassay for rapid detection of potato ring rot caused by Clavibacter michiganensis subsp. sepedonicus. Applied Biochemistry and Microbiology, 50(6), 675-682. doi:10.1134/s0003683814120011Hodgetts, J., Karamura, G., Johnson, G., Hall, J., Perkins, K., Beed, F., … Smith, J. (2014). Development of a lateral flow device for in-field detection and evaluation of PCR-based diagnostic methods forXanthomonas campestrispv.musacearum, the causal agent of banana xanthomonas wilt. Plant Pathology, 64(3), 559-567. doi:10.1111/ppa.12289Noguera, P., Posthuma-Trumpie, G. A., van Tuil, M., van der Wal, F. J., de Boer, A., Moers, A. P. H. A., & van Amerongen, A. (2010). Carbon nanoparticles in lateral flow methods to detect genes encoding virulence factors of Shiga toxin-producing Escherichia coli. Analytical and Bioanalytical Chemistry, 399(2), 831-838. doi:10.1007/s00216-010-4334-zCambra M, López MM. Titration of Agrobacterium radiobacter var. tumefaciens antibodies by using enzyme labeled anti-rabbit γ-globulines (ELISA indirect method). In: Proceedings of the 4th International Conference on Plant Pathogenic Bacteria, ed. Station Pathologie Végétale, INRA Angers, 1978. pp: 327–331.O’Keeffe, M., Crabbe, P., Salden, M., Wichers, J., Van Peteghem, C., Kohen, F., … Moneti, G. (2003). Preliminary evaluation of a lateral flow immunoassay device for screening urine samples for the presence of sulphamethazine. Journal of Immunological Methods, 278(1-2), 117-126. doi:10.1016/s0022-1759(03)00207-2PM 7/98 (2) Specific requirements for laboratories preparing accreditation for a plant pest diagnostic activity. (2014). EPPO Bulletin, 44(2), 117-147. doi:10.1111/epp.12118Lamichhane, J. R., & Varvaro, L. (2013). Xanthomonas arboricoladisease of hazelnut: current status and future perspectives for its management. Plant Pathology, 63(2), 243-254. doi:10.1111/ppa.12152Fischer-Le Saux, M., Bonneau, S., Essakhi, S., Manceau, C., & Jacques, M.-A. (2015). Aggressive Emerging Pathovars of Xanthomonas arboricola Represent Widespread Epidemic Clones Distinct from Poorly Pathogenic Strains, as Revealed by Multilocus Sequence Typing. Applied and Environmental Microbiology, 81(14), 4651-4668. doi:10.1128/aem.00050-15Bühlmann, A., Pothier, J. F., Tomlinson, J. A., Frey, J. E., Boonham, N., Smits, T. H. M., & Duffy, B. (2012). Genomics-informed design of loop-mediated isothermal amplification for detection of phytopathogenicXanthomonas arboricolapv. pruniat the intraspecific level. Plant Pathology, 62(2), 475-484. doi:10.1111/j.1365-3059.2012.02654.xGarita-Cambronero, J., Palacio-Bielsa, A., López, M. M., & Cubero, J. (2017). Pan-Genomic Analysis Permits Differentiation of Virulent and Non-virulent Strains of Xanthomonas arboricola That Cohabit Prunus spp. and Elucidate Bacterial Virulence Factors. Frontiers in Microbiology, 8. doi:10.3389/fmicb.2017.00573Ghezzi, J. I., & Steck, T. R. (1999). Induction of the viable but non-culturable condition in Xanthomonas campestris pv. campestris in liquid microcosms and sterile soil. FEMS Microbiology Ecology, 30(3), 203-208. doi:10.1111/j.1574-6941.1999.tb00648.xDel Campo, R., Russi, P., Mara, P., Mara, Hã©., Peyrou, M., de León, I. P., & Gaggero, C. (2009). Xanthomonas axonopodispv.citriâ enters the VBNC state after copper treatment and retains its virulence. FEMS Microbiology Letters, 298(2), 143-148. doi:10.1111/j.1574-6968.2009.01709.

    Modulating receptor-ligand binding in biorecognition by setting surface wettability

    Full text link
    [EN] Modulation of support wettability used for microarray format biosensing has led to an improvement of results. Hydrophobicity of glass chips was set by derivatizing with single vinyl organosilanes of different chain length and silane mixtures. Thiol-ene photochemical linking has been used as effective chemistry for covalent anchoring of thiolated probes. Lowest unspecific binding and highest signal intensity and SNR were obtained with large hydrocarbon chain (C-22) silanes or a shorter one (C-10) containing fluorine atoms. SNR resulting values are improved, reaching levels higher than 1500 in some cases, when using vinyl silanes modified with 1% C-10 alkyl fluorinated one, because mild hydrophobicity was achieved (water contact angle ca. 110 degrees) for all silanes, including the short C-2 and C-3, thus giving rise to smaller and better defined array spots. In addition, unspecific binding of reagents and targets was totally withdrawn. Hence, good-performing surfaces for biosensing applications can be built using appropriate organosilane reagent selection, including fluorinated ones.We thank Patricia Concepcion and Dolores Soriano (Instituto de Tecnologia Quimica, Universitat Politecnica de Valencia-Consejo Superior de Investigaciones Cientificas) for helping with XPS analysis. Financial support from the Generalitat Valenciana (GVA-PROMETEO/2014/040), FEDER, and the Spanish Ministry of Economy and Competitiveness (CTQ2013-45875-R and CTQ2016-75749-R) is acknowledged.Aragón Revuelta, P.; Noguera Murray, PS.; Bañuls Polo, M.; Puchades, R.; Maquieira Catala, A.; González Martínez, MÁ. (2018). Modulating receptor-ligand binding in biorecognition by setting surface wettability. Analytical and Bioanalytical Chemistry. 410(23):5723-5730. https://doi.org/10.1007/s00216-018-1247-8S5723573041023González-Martínez MA, Puchades R, Maquieira A. Optical immunosensors for environmental monitoring: how far have we come? Anal Bioanal Chem. 2007;387:205–18.Kontogeorgis GM, Kiil S. Intermolecular and interparticle forces. In: Kontogeorgis GM, Kiil S, editors. Introduction to applied colloid and surface chemistry. Chichester: Wiley; 2016. p. 11–33.Ronkainen NJ, Halsall HB, Heineman WR. Electrochemical immunoassays and immunosensors. In: van Emon JM, editor. Immunoassay and other bioanalytical methods. Boca Raton: CRC Press, Taylor & Francis Group; 2007. Chapter 16.González-Lucas D, Bañuls M-J, Puchades R, Maquieira A. Versatile and easy fabrication of advanced surfaces for high performance DNA microarrays. Adv Mater Interfaces. 2016:1500850.Yin L, Lu M, Wielunski L, Song W, Tan J, Lu Y, et al. Fabrication and characterization of compact silicon oxynitride waveguides on silicon chips. J Opt. 2012;14:085501.Zhang F, Sautter K, Larssen AM, Findley DA, Davis RC, Samha H, et al. Chemical vapor deposition of three aminosilanes on silicon dioxide: surface characterization, stability, effects of silane concentration, and cyanine dye adsorption. Langmuir. 2010;26:14648–54.Escorihuela J, Bañuls M-J, Puchades R, Maquieira A. DNA microarrays on silicon surfaces through thiol-ene chemistry. Chem Commun. 2012;48:2116–8.Kontogeorgis GM, Kiil S. Wetting and adhesion. In: Kontogeorgis GM, Kiil S, editors. Introduction to applied colloid and surface chemistry. Chichester: Wiley; 2016. p. 121–60.Weinrich D, Köhn M, Jonkheijm P, Westerlind U, Dehmelt L, Engelkamp H, et al. Preparation of biomolecule microstructures and microarrays by thiol-ene .photoimmobilization. ChemBioChem. 2010;11:235–47.Mira D, Llorente R, Morais S, Puchades R, Maquieira A, Marti J. High-throughput screening of surface-enhanced fluorescence on industrial standard digital recording media. In: Carrano JC, Zukauskas A, editors. Optically Based Biological and Chemical Sensing for Defence, Proceedings SPIE Vol. 5617. Bellingham: SPIE; 2004, 0277-786X/04/$15. https://doi.org/10.1117/12.578301 .Wasserman SR, Tao YT, Whitesides GM. Structure and reactivity of alkylsiloxane monolayers formed by reaction of alkyltrichlorosilanes on silicon substrates. Langmuir. 1989;5:1074–87.Munsch J-N, Dentzer J, Claus W, Bassel H. Structural characterization of silanes modified silica by temperature programmed desorption coupled to mass-spectra (TPD-MS) technique. J Colloid Sci Biotech. 2014;3:30–7.Celia E, Darmanin T, de Givenchy ET, Amigoni S, Guittard F. Recent advances in designing superhydrophobic surfaces. J Colloid Interface Sci. 2013;402:1–18.Li L, Li J, Du X, Welle A, Grunze M, Trapp O, et al. Direct UV-induced functionalization of surface hydroxy groups by thiol-ol chemistry. Angew Chem Int Ed. 2014;53:3835–9.Marczak J, Kargol M, Psarski M, Celichowski G. Modification of epoxy resin, silicon and glass surfaces with alkyl- orfluoroalkylsilanes for hydrophobic properties. Appl Surf Sci. 2016;380:91–100

    Negative UX-Based Approach for Deriving Sustainability Requirements

    Get PDF
    In this chapter, a Negative User Experience (NUX)-based method for deriving sustainability requirements of persuasive software systems is proposed. The method relies on the analysis of NUX assessment, and the exploitation of relationships between the SQ model and the PSD model, which are well-known models for sustainability-quality in software systems and persuasive system design respectively. To illustrate the method, a user study has been conducted involving people in their real working environments while using specific software intended to change their behavior for preventing or reducing repetitive strain injury (RSI). The method allowed us to discover thirteen requirements that contribute to social, technical and economic sustainability dimensions
    corecore