8,961 research outputs found
The Use of NVivo in the Different Stages of Qualitative Research
When researchers take their first steps in qualitative research, they face the great lack of models to follow regarding the method to use in the analysis of data, on some occasions falling into the temptation of coveting the high level of systematisation employed by researchers working with quantitative data. This article offers a basic theoretical contribution that allows researcher to approach qualitative data analysis and the use of the NVivo software, highlighting its advantages and describing the main functions at each moment of a qualitative investigation, placing particular emphasis on the analysis process
Surface-Atmosphere Coupling Scale, the Fate of Water, and Ecophysiological Function in a Brazilian Forest
This is the final verison. Available from American Geophysical Union (AGU) via the DOI in this record.The K83 observational data are available from AmeriFlux (ameriflux.lbl.gov), NCEP Reanalysis data provided by NOAA/ESRL/PSD, Boulder, Colorado, USA, from the http://www.cdc.noaa.gov/ website. Model code and output is stored at GitLab (gitlab.com). This project is password protected, and the password can be obtained from the corresponding author at [email protected] upon request.Tropical South America plays a central role in global climate. Bowen ratio teleconnects to circulation and precipitation processes far afield, and the global CO2 growth rate is strongly influenced by carbon cycle processes in South America. However, quantification of basin-wide seasonality of flux partitioning between latent and sensible heat, the response to anomalies around climatic norms, and understanding of the processes and mechanisms that control the carbon cycle remains elusive. Here, we investigate simulated surface-atmosphere interaction at a single site in Brazil, using models with different representations of precipitation and cloud processes, as well as differences in scale of coupling between the surface and atmosphere. We find that the model with parameterized clouds/precipitation has a tendency toward unrealistic perpetual light precipitation, while models with explicit treatment of clouds produce more intense and less frequent rain. Models that couple the surface to the atmosphere on the scale of kilometers, as opposed to tens or hundreds of kilometers, produce even more realistic distributions of rainfall. Rainfall intensity has direct consequences for the âfate of water,â or the pathway that a hydrometeor follows once it interacts with the surface. We find that the model with explicit treatment of cloud processes, coupled to the surface at small scales, is the most realistic when compared to observations. These results have implications for simulations of global climate, as the use of models with explicit (as opposed to parameterized) cloud representations becomes more widespread.National Aeronautics and Space Administration (NASA)National Science Foundation (NSF)National Science Foundation (NSF)U.S. Department of Energy (DOE
Fertility treatment delays during COVID-19: Profiles, feelings and concerns of impacted patients
The coronavirus disease 2019 (COVID-19) pandemic resulted in unprecedented measures across all health services around the globe, including the large-scale cessation of assisted reproductive technology treatment in Europe as clinics closed, causing disruption and delay to the fertility treatment of thousands of patients in the UK alone. This research explores how patients were impacted by the delay and disruption, and their feelings, concerns and reactions. A mixed-methods, anonymous, online questionnaire, live between 19 May and 30 June 2020, was used to target all fertility patients aged >18âŻyears whose treatment had been impacted by COVID-19. In total, 709 people began the questionnaire and 501 completed it in the time available (70.7% completion rate). Patients reported feeling 'powerless/helpless' (78.3%), 'frustrated' (59.3%) and 'anxious' (54.7%) in response to the closure of fertility clinics. The majority were 'very concerned' about time passing and not knowing when they could start treatment again (79.0%), and the length of waiting lists when clinics reopened (70.9%). While 76.8% of respondents had some concerns around contracting COVID-19, 42.9% were 'not at all concerned' about undergoing in-vitro fertilization treatment during a pandemic. Variables such as funding source, duration of infertility, previous experience of fertility treatment, treatment stage and the presence of children were correlated with significant intragroup differences in the types of concerns reported. The large majority (72.7%) of respondents stated their eagerness to start treatment as soon as possible, and 9.4% said that they had already resumed treatment; only 6.0% of respondents wanted to wait due to concerns related to COVID-19
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Are sex offending allegations viewed differently? Exploring the effect of offense type and conviction status on criminal stigmatization
Attitudes towards individuals with sexual convictions play a major role in the formation of legislative action, including sentencing policies and registration and notification procedures. However, there is little research about stigmatization directed at those who are accused of such offenses prior to conviction. In this work we explored this gap by comparing stigmatization (e.g., a desire for social distance, and negative personality attributions) towards people accused of a range of crimes (sexual, violent, and acquisitive), and whether this was further impacted by whether or not allegations led to a conviction. We recruited 403 community-based participants for a between-subjects experimental survey. We found support for the conclusion that people accused of and convicted for sexual offenses are more heavily stigmatized than allegations related to other crime types, and especially so when allegations involved child victims. Stigmatization took the form of greater levels of support for police-initiated notifications about allegations before conviction, increased desires for social distance, and attributions of negative personality traits. We discuss the theoretical and applied implications of these findings in relation to stigma research and issues related to anonymity for those accused of sexual offenses. An open-access preprint of this paper is available at https://psyarxiv.com/ve93b
Aid conditionalities, international Good Manufacturing Practice standards and local production rights: a case study of local production in Nepal
© 2015 Brhlikova et al. This is an Open Access article distributed under the terms of the Creative Commons Attribution License
(http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium,
provided the original work is properly credited. The Creative Commons Public Domain Dedication waiver (http://
creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.This work was supported by the Economic and Social Research Council and
the Department for International Development [RES-167-25-0110] through
the collaborative research project
Tracing Pharmaceuticals in South Asia
(2006
â
2009). In addition to the authors of this paper, the project team
included: Soumita Basu, Gitanjali Priti Bhatia, Erin Court, Abhijit Das, Stefan
Ecks, Patricia Jeffery, Roger Jeffery, Rachel Manners, and Liz Richardson.
Martin Chautari (Kathmandu) and the Centre for Health and Social Justice
(New Delhi) provided resources drawn upon in writing this paper but are
not responsible for the views expressed, nor are ESRC or DFID.
Ethical review was provided by the School of Social and Political Science at
the University of Edinburgh, and ethical approval in Nepal for the study
granted by the Nepal Health Research Council (NHRC)
Cutinase activity in supercritical and organic media: water activity, solvation and acidâbase effects
We performed a comparative study on the activity of Fusarium solani pisi cutinase immobilized on zeolites NaA and NaY, in n-hexane, acetonitrile, supercritical ethane (sc-ethane) and sc-CO2, at two different water activity (aW) values set by salt hydrate pairs in situ and at acidâbase conditions fixed with solid-state buffers of aqueous pKa between 4.3 and 10.6. The reaction studied was the transesterification of vinyl butyrate by (R,S)-2-phenyl-1-propanol. The transesterification activity of cutinase was highest and similar in sc-ethane and in n-hexane,about one order of magnitude lower in acetonitrile and even lower in sc-CO2. Activity coefficients (Îł) generated for the two substrates indicated that they were better solvated in acetonitrile and thus less available for binding at the active site than in the other three solvents.
Îł data also suggested higher reaction rates in sc-ethane than in n-hexane, as observed, and provided evidence for a direct negative effect of sc-CO2 on enzyme activity. Manipulation of the acidâbase conditions of the media did not afford any improvement of the initial rates of transesterification relative to the blanks (no added acidâbase buffer, only salt hydrate pair), except in the case of cutinase immobilized on zeolite NaA in sc-ethane at aW = 0.7. The poor performance of the blank in this case and the great improvement observed in the presence of a basic buffer suggest a deleterious acidic effect in the medium which, an experiment without additives confirmed, was not due to the known
acidic character of the salt hydrate pair used to set aW = 0.7. In acetonitrile, increasing aW was accompanied by a decrease in initial rates of transesterification, unlike in the other solvents. There was considerable hydrolysis in acetonitrile, where initial rates of hydrolysis increased
about 20-fold from aW = 0.2 to 0.7. Hydrolysis was less pronounced in sc-ethane and in n-hexane, and only at aW = 0.7, and in sc-CO2 butyric acid was detected only at very long reaction times, in agreement with a generally low catalytic activity. Cutinase enantio-selectivity towards the alcohol substrate was low and unaffected by any manipulation of medium conditions.This work has been supported by Fundação para a CiĂȘncia e Tecnologia (FCT, Portugal) through the contracts PRAXIS/PBIO/14314/1998 and POCTI/35429/QUI/2000 and the grant PRAXIS XXI/BD/21615/99 (S. Garcia), and by FEDER.We thank Ricardo Baptista for help in the production of cutinase
The Impact of a Simple Representation of Non-Structural Carbohydrates on the Simulated Response of Tropical Forests to Drought
This is the final version. Available on open access from European Geosciences Union via the DOI in this recordCode availability.
A model example of SUGAR for a single site and set-up to run at CaxiuanĂŁ using output from JULES is available at https://doi.org/10.5281/zenodo.3547613 (Jones, 2019). For further information or code please contact [email protected] representing the response of ecosystems to environmental change in land surface models (LSMs) is crucial to making accurate predictions of future climate. Many LSMs do not correctly capture plant respiration and growth fluxes, particularly in response to extreme climatic events. This is in part due to the unrealistic assumption that total plant carbon expenditure (PCE) is always equal to gross carbon accumulation by photosynthesis. We present and evaluate a simple model of labile carbon storage and utilisation (SUGAR) designed to be integrated into an LSM, which allows simulated plant respiration and growth to vary independent of photosynthesis. SUGAR buffers simulated PCE against seasonal variation in photosynthesis, producing more constant (less variable) predictions of plant growth and respiration relative to an LSM that does not represent labile carbon storage. This allows the model to more accurately capture observed carbon fluxes at a large-scale drought experiment in a tropical moist forest in the Amazon, relative to the Joint UK Land Environment Simulator LSM (JULES). SUGAR is designed to improve the representation of carbon storage in LSMs and provides a simple framework that allows new processes to be integrated as the empirical understanding of carbon storage in plants improves. The study highlights the need for future research into carbon storage and allocation in plants, particularly in response to extreme climate events such as drought.Natural Environment Research Council (NERC)Newton FundAustralian Research Council (ARC)Spanish Ministry of Economy and Competitiveness (MINECO)Engineering and Physical Sciences Research Council (EPSRC)JPL-Caltech President's and Director's Research & Development FundMet Office Hadley Centre Climate ProgrammeEuropean Union Horizon 202
The assessment of neuromuscular fatigue during 120 min of simulated soccer exercise
Purpose
This investigation examined the development of neuromuscular fatigue during a simulated soccer match incorporating a period of extra time (ET) and the reliability of these responses on repeated test occasions.
Methods
Ten male amateur football players completed a 120 min soccer match simulation (SMS). Before, at half time (HT), full time (FT), and following a period of ET, twitch responses to supramaximal femoral nerve and transcranial magnetic stimulation (TMS) were obtained from the knee-extensors to measure neuromuscular fatigue. Within 7 days of the first SMS, a second 120 min SMS was performed by eight of the original ten participants to assess the reliability of the fatigue response.
Results
At HT, FT, and ET, reductions in maximal voluntary force (MVC; â11, â20 and â27%, respectively, Pââ€â0.01), potentiated twitch force (â15, â23 and â23%, respectively, Pâ<â0.05), voluntary activation (FT, â15 and ET, â18%, Pââ€â0.01), and voluntary activation measured with TMS (â11, â15 and â17%, respectively, Pââ€â0.01) were evident. The fatigue response was robust across both trials; the change in MVC at each time point demonstrated a good level of reliability (CV range 6â11%; ICC2,1 0.83â0.94), whilst the responses identified with motor nerve stimulation showed a moderate level of reliability (CV range 5â18%; ICC2,1 0.63â0.89) and the data obtained with motor cortex stimulation showed an excellent level of reliability (CV range 3â6%; ICC2,1 0.90â0.98).
Conclusion
Simulated soccer exercise induces a significant level of fatigue, which is consistent on repeat tests, and involves both central and peripheral mechanisms
Superheated Microdrops as Cold Dark Matter Detectors
It is shown that under realistic background considerations, an improvement in
Cold Dark Matter sensitivity of several orders of magnitude is expected from a
detector based on superheated liquid droplets. Such devices are totally
insensitive to minimum ionizing radiation while responsive to nuclear recoils
of energies ~ few keV. They operate on the same principle as the bubble
chamber, but offer unattended, continuous, and safe operation at room
temperature and atmospheric pressure.Comment: 15 pgs, 4 figures include
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