Previous Expectations Research Articles

Does Information Become Actual Knowledge in Surgical Spine Patients? A Qualitative Study.

It is seldom questioned, if information delivered (to a patient) actually produces knowledge. There is a lack of understanding of how patients in general, surgical patients in particular, perceive, process, and translate clinical information in their everyday lives. The objective of this study was to elucidate how patients undergoing spinal fusion surgery manage and assimilate information provided by clinicians and how they adapt and embrace this information pre- and postsurgery. The study employed qualitative methods of ethnographic observation and semistructured interview with a total of 14 individuals, that is, spinal fusion patients (n = 6) and clinicians (n = 8) over a 4-month period in 2014. The results highlight that in the course of treatment, patients embrace or reject information on the basis of their previous experience, expectations, and confidence in their own ability. Overall, patients adjusting to everyday life after spinal fusion surgery used 4 strategies of information processing about their individual life situation. Patients do not use just one of these strategies but may use a number of strategies depending on the situation. Such production of knowledge is pivotal to the behavior of patients through their treatment trajectory. This study points to the challenges of supporting patients to assimilate information and affect health-related behaviors, recognizing that knowledge and behavior change are emergent processes in patients and not a linear outcome of information.

Neural Evidence of Hierarchical Cognitive Control during Haptic Processing: An fMRI Study.

Interacting with our immediate surroundings requires constant manipulation of objects. Dexterous manipulation depends on comparison between actual and predicted sensory input, with these predictions calculated by means of lower- and higher-order corollary discharge signals. However, there is still scarce knowledge about the hierarchy in the neural architecture supporting haptic monitoring during manipulation. The present study aimed to assess this issue focusing on the cross talk between lower-order sensory and higher-order associative regions. We used functional magnetic resonance imaging in humans during a haptic discrimination task in which participants had to judge whether a touched shape or texture corresponded to an expected stimulus whose name was previously presented. Specialized haptic regions identified with an independent localizer task did not differ between expected and unexpected conditions, suggesting their lack of involvement in tactile monitoring. When presented stimuli did not match previous expectations, the left supramarginal gyrus (SMG), middle temporal, and medial prefrontal cortices were activated regardless of the nature of the haptic mismatch (shape/texture). The left primary somatosensory area (SI) responded differently to unexpected shapes and textures in line with a specialized detection of haptic mismatch. Importantly, connectivity analyses revealed that the left SMG and SI were more functionally coupled during unexpected trials, emphasizing their interaction. The results point for the first time to a hierarchical organization in the neural substrates underlying haptic monitoring during manipulation with the SMG as a higher-order hub comparing actual and predicted somatosensory input, and SI as a lower-order site involved in the detection of more specialized haptic mismatch.

Neutron diffraction study on magnetic structures and transitions in Sr2Cr3As2O2

Sr2Cr3As2O2 is composed of alternating square-lattice CrO2 and Cr2As2 stacking layers, where CrO2 is isostructural to the CuO2 building-block of cuprate high-Tc superconductors and Cr2As2 to Fe2As2 of Fe-based superconductors. Current interest in this material is raised by theoretic prediction of possible superconductivity. In this neutron powder diffraction study, we discovered that magnetic moments of Cr(II) ions in the Cr2As2 sublattice develop a C-type antiferromagnetic structure below 590 K, and the moments of Cr(I) in the CrO2 sublattice form the La2CuO4 -like antiferromagnetic order below 291 K. The staggered magnetic moment 2.19(4){\mu} B /Cr(II) in the more itinerant Cr2As2 layer is smaller than 3.10(6){\mu}_B/Cr(I) in the more localized CrO2 layer. Different from previous expectation, a spin-flop transition of the Cr(II) magnetic order observed at 291 K indicates a strong coupling between the CrO2 and Cr2As2 magnetic subsystems.

A successful prediction of the record CO2 rise associated with the 2015/2016 El Niño.

In early 2016, we predicted that the annual rise in carbon dioxide concentration at Mauna Loa would be the largest on record. Our forecast used a statistical relationship between observed and forecast sea surface temperatures in the Niño 3.4 region and the annual CO2 rise. Here, we provide a formal verification of that forecast. The observed rise of 3.4 ppm relative to 2015 was within the forecast range of 3.15 ± 0.53 ppm, so the prediction was successful. A global terrestrial biosphere model supports the expectation that the El Niño weakened the tropical land carbon sink. We estimate that the El Niño contributed approximately 25% to the record rise in CO2, with 75% due to anthropogenic emissions. The 2015/2016 CO2 rise was greater than that following the previous large El Niño in 1997/1998, because anthropogenic emissions had increased. We had also correctly predicted that 2016 would be the first year with monthly mean CO2 above 400 ppm all year round. We now estimate that atmospheric CO2 at Mauna Loa would have remained above 400 ppm all year round in 2016 even if the El Niño had not occurred, contrary to our previous expectations based on a simple extrapolation of previous trends.This article is part of a discussion meeting issue ‘The impact of the 2015/2016 El Niño on the terrestrial tropical carbon cycle: patterns, mechanisms and implications’.

Reconstructing the flux-rope topology using the FOTE method

With high-resolution data of the Magnetospheric Multiscale (MMS) mission, we observe a magnetic flux rope (MFR) in the Earth’s magnetosheath. This MFR, showing a clear bipolar variation of the magnetic field in the normal component to local current sheet, contains a strong core field. We use the FOTE method to reconstruct the topology of this MFR and find it is consistent with previous expectation. For the first time, the spiral field and core field of the MFR are both revealed from the FOTE method. Comparing topologies reconstructed at different times, we suggest that the axis of the MFR rotates about 88° at different spatial location. Shape and size of the normal projection to axis vary with the spatial location as well. Inside the MFR, a significant increase of plasma density from 40 to 80 cm−3, a sharp decrease of ion temperature from 200 to 50 eV, an enhancement of cold ions and a series of filamentary currents are found.

The child’s emotional management in school competition: under-seven football / La gestión emocional del niño en la competición escolar: el fútbol prebenjamín

Football is one of the most common extracurricular activities among schoolchildren. Illusions and expectations are poured into a competitive sport that complements their formal education at school. The controversy over competition in schoolchildren aged six and seven opens up a debate on the lessons that are constructed. This study explores the emotional management that children develop in order to participate in sports activities in relation to the lessons promoted by the school. This article presents an ethnographic study grounded upon participant observation, with 101 schoolchildren in the first and second years of primary school during one academic year in 207 sessions, and semi-structured interviews with 21 teachers. After analysing the narratives, the results reveal previous expectations and stresses, a level of activation adequate for the competitive demands of the environment, the development of the ability to be competent in a stressful situation, the emotional capitalization of knowing how to win and lose, the impact of social recognition on adaptative construction of self-esteem, and the management of episodes of stress.

Understanding Continuance Usage of Natural Gas: A Theoretical Model and Empirical Evaluation

The adoption of natural gas increased notably last years, and there is some recognition that it improves the quality of life of inhabitants. While initial acceptance is an essential first step, the continued use is relevant to the long-term success of any technology. However, the literature on energy has focused on adoption and has devoted less attention to models that explain continuance usage. Accordingly, this study developed a model to explain continuance usage, grounded in Expectation-Confirmation Model (ECM). Unlike adoption models, confirmation of previous expectations and satisfaction with the experience of use have a relevant role in this phenomenon. Data was gathered through a questionnaire to 435 users of the service in a Latin American metropolis, and structural equations model was used for analysis. The results show that constructs of the ECM (perceived usefulness, disconfirmation, and satisfaction) influences on continuance intention. While the price impacts as expected, it is surprising that environmental consciousness strongly impacts the intention. These results may be useful for public agents to foster more comprehensive policies (beyond traditional: price and access), which include environmental and safety issues to consolidate the use of this energy source. Energy companies should develop strategies to manage consumer expectations and loyalty programs based on a high level of satisfaction.

Ferroic domains regulate photocurrent in single-crystalline CH3NH3PbI3 films self-grown on FTO/TiO2 substrate

Photovoltaic conversion efficiency (PCE) of halide perovskite solar cells has risen spectacularly, yet the very crystalline structure of CH3NH3PbI3 remains ambiguous after extensive researches, and its polar nature remains hotly debated. Here we present compelling evidences that CH3NH3PbI3 crystals self-grown on FTO/TiO2 substrate consist of ferroic domains with alternating polar and nonpolar orders, in contrast to previous experimental and theoretical expectations, and polar domains possess reduced photocurrent. It is found that polar and nonpolar orders of CH3NH3PbI3 can be distinguished from their distinct lateral piezoresponse, energy dissipation, first and second harmonic electromechanical couplings, and temperature variation, even though their difference in crystalline lattice is very subtle, and they possess two-way memory effect through cubic-tetragonal phase transition. We hope these findings resolve key questions regarding polar nature of CH3NH3PbI3 and its implication on photovoltaics, reconcile contradictory data widely reported, and point a direction toward engineering ferroic domains for enhanced PCE.

Incidence and characteristics of the nocebo response from meta‐analyses of the placebo arms of clinical trials of olanzapine for bipolar disorder

In the clinical setting, the nocebo phenomenon is where clinical worsening or adverse events occur as a response to a treatment, in a situation in which conditioning from previous treatment exposure and/or expectations of sickness or symptoms lead to sickness and symptoms in a conditioned or expectant individual. The nocebo response may thus be a confounder in clinical treatment and clinical research. There is a need to know how to predict if an individual is likely to be a nocebo responder, and how significant and commonplace the nocebo effect might be. An analysis was conducted on nine placebo-controlled, randomized clinical trials of olanzapine for the treatment of bipolar disorder using data from placebo-treated study participants only. Data were analysed to identify participant or study characteristics associated with a nocebo event, defined as any treatment-emergent adverse event (TEAE) or an increase in score from baseline to endpoint for primary measures of clinical symptoms. A total of 1185 participants were randomized to placebo, of whom 806 (68%) reported a TEAE. Hamilton Depression Rating Scale (HDRS) data were only available for 649 placebo-treated participants, of whom 321 (49.5%) demonstrated worsening. Nocebo events were significantly associated with: not being treatment-naïve, younger age, being located in the USA, being a participant in an earlier study, and being classified as obese compared with normal weight. A pattern to identify nocebo responders did not emerge, although some prognostic variables were associated with a greater probability of nocebo response. There was some evidence to support the role of expectancy as a cause of nocebo reactions.

Competition for Space Is Controlled by Apoptosis-Induced Change of Local Epithelial Topology

During the initial stage of tumor progression, oncogenic cells spread despite spatial confinement imposed by surrounding normal tissue. This spread of oncogenic cells (winners) is thought to be governed by selective killing of surrounding normal cells (losers) through a phenomenon called "cell competition" (i.e., supercompetition). Although the mechanisms underlying loser elimination are increasingly apparent, it is not clear how winner cells selectively occupy the space made available following loser apoptosis. Here, we combined live imaging analyses of two different oncogenic clones (Yki/YAP activation and Ras activation) in the Drosophila epithelium with computer simulation of tissue mechanics to elucidate such a mechanism. Contrary to the previous expectation that cell volume loss after apoptosis of loser cells was simply compensated for by the faster proliferation of winner cells, we found that the lost volume was compensated for by rapid cell expansion of winners. Mechanistically, the rapid winner-dominated cell expansion was driven by apoptosis-induced epithelial junction remodeling, which causes re-connection of local cellular connectivity (cell topology) in a manner that selectively increases winner apical surface area. In silico experiments further confirmed that repetition of loser elimination accelerates tissue-scale winner expansion through topological changes over time. Our proposed mechanism for linking loser death and winner expansion provides a new perspective on how tissue homeostasis disruption can initiate from an oncogenic mutation.

Estimating the reference frame: A smooth twice-differentiable utility function for non-compensatory loss-averse decision-making

Since the introduction of prospect theory, reference-dependence and loss-aversion have become widely acknowledged as important elements affecting decision-making. Nevertheless, establishing and determining reference frames are not extensively analyzed in the literature; rather, in most applications, it is simply assumed that the reference frames can be represented through the status quo. This assumption, however, may lead to biased results, as not only the status quo affects reference frames, but also previous experiences or expectations, among many others.Therefore, it would be more appropriate to estimate the reference frame directly as an unobserved latent variable. Unfortunately, current utility functions utilized to depict this kind of behavior are not useful for this purpose, as they are defined piecewise. This work proposes a smooth twice-differentiable utility function that indeed allows estimating reference frames. Further, this function satisfies all major properties of prospect theory. Finally, the approach is tested relying on three case studies. They show that in the context of semi-compensatory loss-averted decision-making reference frames may diverge from the status quo.

The intersection of global mobility, lifestyle and ELT work: a critical examination of language instructors’ trajectories

ABSTRACTThis paper examines the intersection of one form of contemporary mobility, i.e. lifestyle mobility, with the ELT industry. It draws on the discursive analysis of a small corpus of life story data produced by native English language teachers of different ages residing in Barcelona. Through their own personal and professional accounts and rationales, it seeks to comprehend how they construct their work experiences in the light of previous professional trajectories, prior expectations and future mobility plans, but also against the backdrop of a highly precarised job market. The article argues that the ‘backpacker’ language teacher is certainly a reality but also a contemporary cultural myth that works to disguise a complex humanscape of relocators of different ages and aspirations who face difficulties fitting in an industry that expects docile and inexperienced bodies and a local market where nativeness enables quick access to teaching jobs but only to unskilled and temporary ones. The younger informants narrate biographies in flux and a sense of life stagnation or development to which commercial ELT may be differently instrumental. This article challenges assumptions about the value of (native) English in the work field and how easily work experience and qualifications travel around for middle-class professionals.

Interracial face-to-face crimes and the socioeconomics of neighborhoods: Evidence from policing records

Using a novel data set comprising the universe of reported crimes to the Los Angeles Police Department from 2000 to 2007, we examine race victimization patterns among face-to-face crimes at the neighborhood level. While some of our findings support previous work, others challenge previous research and general expectations about race and crime. Contrary to victimization patterns observed in the aggregate data, our panel data models identify consistent patterns of reported violence committed by White individuals against Blacks and Hispanics across neighborhoods. Specifically, in the presence of controls for neighborhood and time effects, Whites are more likely to assault and use weapons against Blacks and Hispanics than Blacks and Hispanics are to assault or use weapons against Whites. On the other hand, Blacks and Hispanics are typically more likely to commit robbery (crimes which we characterize as being often related to economic motives) against Whites than the reverse. We estimate these effects across the racial composition and earnings distribution of neighborhoods in Los Angeles County and find significant heterogeneity in the propensity for certain types of crimes to occur as a function of the race/ethnic match of suspect and victim.

Predictors of parent-professional alliance in home-based parenting support

A strong parent-professional alliance that increases over the course of care predicts positive outcomes of home-based parenting support. However, little is known about factors that influence the development or maintenance of the alliance in home-based parenting support, limiting professionals' ability to optimize the parent-professional alliance and thereby the quality of care. Therefore, the present study examined whether voluntary versus mandated service involvement, previous involvement in similar services, parenting stress, child psychosocial problems, and care expectations were associated with early parent-professional alliance and predicted change in alliance during home-based parenting support services. Questionnaire data from 60 parents (M age = 40.65 years, SD = 6.81, range 23–55 years) and their professionals collected early and late in care were analyzed using structural equation modeling. Results indicated that previous involvement in similar services was related to lower levels of early parent-reported alliance, whereas positive care expectations were related to stronger early parent- and professional-reported alliances. Moreover, care expectations predicted change in professional-reported alliance during care, with positive parent expectations predicting a decrease and positive professional expectations predicting an increase in alliance. Voluntary versus mandated service involvement, parenting stress and child psychosocial problems were not found to influence the alliance. These findings emphasize the need for professionals to discuss previous service involvement and care expectations as well as a need for future studies to identify other factors that influence alliance and alliance-building skills.

Training of the Main Dipoles Magnets in the Large Hadron Collider Toward 7 TeV Operation

During 2016, one-quarter of the LHC main dipoles have has been powered above the 7.7 T operational field, to reach a field of 8.1 T. These tests were done to confirm the extrapolation of the training behavior based on a Gaussian tail of the quench distribution. In this paper, it is shown that a modified Gaussian distribution can be used to better model the quench distributions. We then present the data above 6.5 TeV, showing that they are compatible with the previous expectations. We present the data of retraining of sector 12, which was warmed up in 2016 to replace a magnet, and training of individual magnets that went through several thermal cycles: there is an indication that training campaigns during successive warm-ups and cool-downs could become shorter. We finally show that a significant correlation is found between the training of the installed magnet and individual test after a thermal cycle (second cool-down). On the other hand, no correlation is found with individual test under virgin conditions (first cool-down).

The Elderly and the State: Specifics of the Relationship in Contemporary Russia on the Example of the Elderly in St. Petersburg

This article presents the results of sociological research on the paternalistic attitudes that determine the relationship between the state and the elderly in the context of new socioeconomic conditions. It was revealed that the previous paternalistic expectations of the elderly were stable and manifested more strongly in the older age group (71–90 years old). The younger age group of the elderly (55–70 years old) begins to distance themselves from the guardianship of the state and relies more on their own resources under new circumstances. Four groups of the elderly were differentiated by their degree of adequacy in their view of the social situation, reliance on state resources, and their own activity. Paternalism takes on new forms that are reflected in the mentality of the older generation of citizens.

Strong cooling induced by stand-replacing fires through albedo in Siberian larch forests

The Siberian larch forests, taking up about a fifth of the global boreal biome, are different from the North American boreal forests in that they generally do not undergo a secondary succession. While wildfires in the boreal forests in North America have been shown to exert a cooling effect on the climate system through a sharp increase in surface albedo associated with canopy removal and species composition change during succession, the magnitude of the surface forcing resulting from fire-induced albedo change and its longevity in Siberia have not been previously quantified. Here we show that in contrast to previous expectations, stand-replacing fires exert a strong cooling effect similar in magnitude to that in North America. This cooling effect is attributable to the increase in surface albedo during snow-on periods. However, the observed earlier snowmelt in the region, and subsequently a longer snow-free season, has resulted in a warming effect which has the potential to offset the fire-induced cooling. The net albedo-induced forcing of the Siberian larch forests in the future would hinge on the interaction between the fire-induced cooling effect and the climate-induced warming effect, both of which will be impacted by the expected further warming in the region.

Does Southern Ocean Surface Forcing Shape the Global Ocean Overturning Circulation?

AbstractPaleoclimate proxy data suggest that the Atlantic Meridional Overturning Circulation (AMOC) was shallower at the Last Glacial Maximum (LGM) than its preindustrial (PI) depth. Previous studies have suggested that this shoaling necessarily accompanies Antarctic sea ice expansion at the LGM. Here the influence of Southern Ocean surface forcing on the AMOC depth is investigated using ocean‐only simulations from a state‐of‐the‐art climate model with surface forcing specified from the output of previous coupled PI and LGM simulations. In contrast to previous expectations, we find that applying LGM surface forcing in the Southern Ocean and PI surface forcing elsewhere causes the AMOC to shoal only about half as much as when LGM surface forcing is applied globally. We show that this occurs because diapycnal mixing renders the Southern Ocean overturning circulation more diabatic than previously assumed, which diminishes the influence of Southern Ocean surface buoyancy forcing on the depth of the AMOC.

GW170817: Implications for the Stochastic Gravitational-Wave Background from Compact Binary Coalescences.

The LIGO Scientific and Virgo Collaborations have announced the event GW170817, the first detection of gravitational waves from the coalescence of two neutron stars. The merger rate of binary neutron stars estimated from this event suggests that distant, unresolvable binary neutron stars create a significant astrophysical stochastic gravitational-wave background. The binary neutron star component will add to the contribution from binary black holes, increasing the amplitude of the total astrophysical background relative to previous expectations. In the Advanced LIGO-Virgo frequency band most sensitive to stochastic backgrounds (near 25Hz), we predict a total astrophysical background with amplitude Ω_{GW}(f=25 Hz)=1.8_{-1.3}^{+2.7}×10^{-9} with 90%confidence, compared with Ω_{GW}(f=25 Hz)=1.1_{-0.7}^{+1.2}×10^{-9} from binary black holes alone. Assuming the most probable rate for compact binary mergers, we find that the total background may be detectable with a signal-to-noise-ratio of 3 after 40months of total observation time, based on the expected timeline for Advanced LIGO and Virgo to reach their design sensitivity.

Food Abundance and Violent Conflict in Africa

AbstractScholars debate whether climate change has a consistent effect on the likelihood of armed conflict in Africa. One major pathway by which climatic variability is hypothesized to increase conflict is by decreasing food availability. However, limitations on food access at both the local and national levels in many developing African countries force most armed groups and communities to depend on locally‐produced food. These actors are therefore likely to use violence to establish control over more food resources or be stationed where more food is available, suggesting that food abundance might also be driving conflict. The present study employs novel data on wheat and maize yields in Africa measured at the very local level to empirically evaluate this hypothesis on a highly disaggregated conflict indicator. To account for the endogenous relationship between conflict and food production, average local levels of drought are used as an instrument. The findings show that, contrary to previous expectations, conflict is driven by higher yields, on average, and not by scarcity.