Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 1.315
Filtrar
1.
Child Abuse Negl ; : 107008, 2024 Sep 05.
Artigo em Inglês | MEDLINE | ID: mdl-39242269

RESUMO

BACKGROUND: Problematic sexual behavior (PSB) between siblings can be a form of sibling sexual abuse (SSA). A notable gap in research are studies examining PSB among preschool-age children with siblings. OBJECTIVE: This study examined the impact of child maltreatment, exposure to family sexuality, and use of coercive sexual behavior on preschool-aged children PSB with siblings and with nonsiblings. PARTICIPANTS AND SETTING: All 284 children were ages 3-6 years with PSB who had siblings in the home (197 initiated PSB with siblings and 87 initiated PSB with non-siblings). METHODS: The two groups were compared on types of PSB, use of coercion, child maltreatment history, exposure to family sexuality, and caregiver attitudes. Caregiver report measures were the Child Sexual Behavior Inventory- Third Edition (CSBI-III), the Family Sexuality Index, and intake form on maltreatment experienced (i.e., physical abuse, sexual abuse, emotional abuse, neglect, exposure to domestic violence, caregiver drug use, and failure to protect). RESULTS: Maltreatment history was significant, t(258) = -3.36, p < .001; sibling initiators were associated with higher rates of sexual and physical abuse, and neglect than non-sibling. Exposure to family sexuality was significant with non-sibling initiators demonstrating greater exposure than the sibling group, t(282) = 2.66, p = .008. There was no significance between groups for types of PSB including use of coercion. CONCLUSIONS: Results illuminated unique dynamics of PSB with siblings of preschool-aged children. A developmental framework integrating child maltreatment, impulsivity, environmental factors, and capabilities are key considerations for conceptualization, prevention, and response that is distinct from SSA of adolescents.

2.
Sci Rep ; 14(1): 21714, 2024 Sep 17.
Artigo em Inglês | MEDLINE | ID: mdl-39289392

RESUMO

The main purpose of this article is to study the generalized Kudryashov's equation with truncated M-fractional derivative, which is commonly used to describe the propagation of wide pulses in nonlinear optical fibers. By employing the complete discriminant system of fourth-order polynomials, various types of explicit solutions are systematically classified, which include periodic solutions, the trigonometric functions, the double-period solutions, and the elliptic function solutions. Additionally, a series of 2D, 3D, and contour plots are generated to visually depict the spatial distribution and evolution of various solutions. This not only advances the development of nonlinear equations in theory but also provides valuable guidance in practical applications.

3.
Front Sports Act Living ; 6: 1323582, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-39308895

RESUMO

Purpose: Positive attitudes toward physical activity have been consistently linked to health Behaviors. This study aims to validate the effectiveness of attitude change in the domain of exercise and identify the mechanisms through which this change occurs in the context of sports and promote exercise behavior. Methods: 103 university students (20.7 ± 1.97 years, 40 males, and 63 females) completed the implicit and explicit attitude tests. Based on their exercise levels assessed using the Physical Activity Rating Scale (PARS-3), participants were categorized into low and high exercise level groups. From this sample, 66 university students (19 males and 47 females) with low exercise levels completed a self-generated information task. Subsequently, physical activity was assessed through a skipping rope task. Results: The implementation of the self-generated information task resulted in notable alterations in implicit attitudes (ηi2 = 0.07) toward physical activity during subsequent Implicit Attitude Test (IAT) evaluations. Additionally, significant changes were observed in explicit attitudes (ηe2 = 0.12) toward physical activity among university students. Moreover, the use of self-generated information positively influenced immediate exercise behavior. Discussion: This study provides valuable insights into the impact of attitudes on behaviors among university students. It suggests that attitudes toward physical activity can be effectively changed through the use of self-generated information methodology, leading to an enhancement in immediate exercise behavior. Such attitude change has the potential to promote healthier behaviors and reduce the risk of diseases. These findings hold implications for interventions aimed at enhancing physical activity levels among university students.

4.
J Environ Manage ; 370: 122361, 2024 Sep 09.
Artigo em Inglês | MEDLINE | ID: mdl-39255573

RESUMO

This research aims to use the power of geospatial artificial intelligence (GeoAI), employing the categorical boosting (CatBoost) machine learning model in conjunction with two metaheuristic algorithms, the firefly algorithm (CatBoost-FA) and the fruit fly optimization algorithm (CatBoost-FOA), to spatially assess and map noise pollution prone areas in Tehran city, Iran. To spatially model areas susceptible to noise pollution, we established a comprehensive spatial database encompassing data for the annual average Leq (equivalent continuous sound level) from 2019 to 2022. This database was enriched with critical spatial criteria influencing noise pollution, including urban land use, traffic volume, population density, and normalized difference vegetation index (NDVI). Our study evaluated the predictive accuracy of these models using key performance metrics, including root mean square error (RMSE), mean absolute error (MAE), and receiver operating characteristic (ROC) indices. The results demonstrated the superior performance of the CatBoost-FA algorithm, with RMSE and MAE values of 0.159 and 0.114 for the training data and 0.437 and 0.371 for the test data, outperforming both the CatBoost-FOA and CatBoost models. ROC analysis further confirmed the efficacy of the models, achieving an accuracy of 0.897, CatBoost-FOA with an accuracy of 0.871, and CatBoost with an accuracy of 0.846, highlighting their robust modeling capabilities. Additionally, we employed an explainable artificial intelligence (XAI) approach, utilizing the SHAP (Shapley Additive Explanations) method to interpret the underlying mechanisms of our models. The SHAP results revealed the significant influence of various factors on noise-pollution-prone areas, with airport, commercial, and administrative zones emerging as pivotal contributors.

5.
Public Health ; 236: 436-440, 2024 Sep 20.
Artigo em Inglês | MEDLINE | ID: mdl-39305662

RESUMO

OBJECTIVES: To increase organ donation rates, many countries have switched from an opt-in ('explicit consent') default for organ donation to an opt-out ('presumed consent') default. This study sought to determine the extent to which this change in default has led to an increase in the number of deceased individuals who become organ donors. STUDY DESIGN: Longitudinal retrospective analysis. METHODS: We conducted a retrospective analysis of within-country longitudinal data to assess the effect of changing the organ donation default policy from opt-in to opt-out. Our analysis focused on the longitudinal deceased donor rates in five countries (Argentina, Chile, Sweden, Uruguay, Wales) that had adopted this change. Using a Bayesian aggregated binomial regression model, we estimated the odds of organ donation within each country over time, as well as the effect of the policy switch. RESULTS: Switching from an opt-in to an opt-out default did not result in an increase in donation rates when averaged across countries. Moreover, the opt-out default did not lead to even a gradual increase in donations: there was no discernible difference in the linear rate of change of donations after the change in default. Finally, the COVID-19 pandemic was associated with a reduction in the odds of donation across all five countries. CONCLUSIONS: Our longitudinal analysis suggests that changing to an opt-out default does not increase organ donation rates. Unless flanked by investments in healthcare, public awareness campaigns, and efforts to address the concerns of the deceased's relatives, a shift to an opt-out default is unlikely to increase organ donations.

6.
J Exp Child Psychol ; 249: 106064, 2024 Sep 17.
Artigo em Inglês | MEDLINE | ID: mdl-39293205

RESUMO

Expectations about how others' actions unfold in the future are crucial for our everyday social interactions. The current study examined the development of the use of kinematic cues for action anticipation and prediction in 3-year-olds, 4-year-olds, 10-year-olds, and adults in two experiments. Participants observed a hand repeatedly reaching for either a close or far object. The motor kinematics of the hand varied depending on whether the hand reached for the close or far object. We assessed whether participants would use kinematic cues to visually anticipate (Experiment 1; N=98) and verbally predict (Experiment 2; N=80) which object the hand was going to grasp. We found that only adults, but not 3- to 10-year-olds, based their visual anticipations on kinematic cues (Experiment 1). This speaks against claims that action anticipations are based on simulating others' motor processes and instead provides evidence that anticipations are based on perceptual mechanisms. Interestingly, 10-year-olds used kinematic cues to correctly verbally predict the target object, and 4-year-olds learned to do so over the trials (Experiment 2). Thus, kinematic cues are used earlier in life for explicit action predictions than for visual action anticipations. This adds to a recent debate on whether or not an implicit understanding of others' actions precedes their ability to verbally reason about the same actions.

7.
J Environ Manage ; 370: 122331, 2024 Sep 06.
Artigo em Inglês | MEDLINE | ID: mdl-39243642

RESUMO

In-stream habitat enhancement is widely used to improve ecological conditions in rivers, often prioritizing key fish life stages such as spawning and juvenile development. However, no standard approaches exist to predict their effects on fish recruitment and populations. Here, we use a spatially-explicit population dynamics model that integrates functional habitat dynamics to assess the impact of two rehabilitation measures in a hydropower-impacted section of the Inn River (SE Germany) on the recruitment potential of four rheophilic and lithophilic fish species - grayling, nase, barbel, and chub. Rehabilitation measures implemented included the construction of a bypass channel and an island side-channel system to improve both longitudinal connectivity and habitat conditions. In addition, we analyzed two alternatives, which would enhance functional availability of nursery habitats from actual 33.2% to 66.8% and 95.3%, respectively. The results suggest that the improved habitat conditions will yield on average additional 14.9 individuals/ha (5.6 kg/ha) of the target species. However, the limited accessibility of usable nursery habitat constitutes a significant recruitment bottleneck for all species. In the alternative scenarios, the increase of functional connectivity will result in average densities of 17.9 and 25.8 individuals/ha, respectively. However, potential further improvements are species-specific, because of distinct population responses to spawning-to-nursery habitat ratios, with density changes varying between -11.7% for grayling and +172.6% for chub. This study not only demonstrates the applicability of the modeling approach for assessing and planning rehabilitation measures but also emphasizes the importance of considering habitat ratios and their functional connectivity to optimize recruitment potential.

8.
J Neurophysiol ; 2024 Sep 04.
Artigo em Inglês | MEDLINE | ID: mdl-39230337

RESUMO

Motor learning involves both explicit and implicit processes that are fundamental for acquiring and adapting complex motor skills. However, stroke may damage the neural substrates underlying explicit and/or implicit learning, leading to deficits in overall motor performance. While both learning processes are typically used in concert in daily life and rehabilitation, no gait studies have determined how these processes function together after stroke when tested during a task that elicits dissociable contributions from both. Here, we compared explicit and implicit locomotor learning in individuals with chronic stroke to age- and sex-matched neurologically intact controls. We assessed implicit learning using split-belt adaptation (where two treadmill belts move at different speeds). We assessed explicit learning (i.e., strategy-use) using visual feedback during split-belt walking to help individuals explicitly correct for step length errors created by the split-belts. After the first 40 strides of split-belt walking, we removed the visual feedback and instructed individuals to walk comfortably, a manipulation intended to minimize contributions from explicit learning. We utilized a multi-rate state-space model to characterize individual explicit and implicit process contributions to overall behavioral change. The computational and behavioral analyses revealed that, compared to controls, individuals with chronic stroke demonstrated deficits in both explicit and implicit contributions to locomotor learning, a result that runs counter to prior work testing each process individually during gait. Since post-stroke locomotor rehabilitation involves interventions that rely on both explicit and implicit motor learning, future work should determine how locomotor rehabilitation interventions can be structured to optimize overall motor learning.

9.
Cortex ; 179: 35-49, 2024 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-39116697

RESUMO

Children are more successful language learners than adults, yet the nature and cause of this phenomenon are still not well understood. Auditory statistical learning from speech has been a prominent focus of research in the field of language development because it is regarded as a fundamental learning mechanism underlying word segmentation in early language acquisition. However, a handful of studies that investigated developmental trajectories for auditory statistical learning found no clear child advantages. The degree to which the learning task measures explicit rather than implicit mechanisms might obscure a potential advantage for younger learners, as suggested by recent findings. In the present study, we compared children aged 7-12 years and young adults on an adapted version of the task that disentangles explicit and implicit contributions to learning. They were exposed to a continuous stream of speech sounds comprising four repeating trisyllabic pseudowords. Learning of the hidden words was tested (a) online through a target-detection task and (b) offline via a forced-choice word recognition test that included a memory judgement procedure. Both measures revealed comparable learning abilities. However, children's performance on the recognition task showed evidence for both explicit and implicit word knowledge while adults appeared primarily sensitive to explicit memory. Since implicit memory is more stable in time than explicit memory, we suggest that future work should focus more on developmental differences in the nature of the memory that is formed, rather than the strength of learning, when trying to understand child advantages in language acquisition.


Assuntos
Desenvolvimento da Linguagem , Percepção da Fala , Humanos , Criança , Feminino , Masculino , Adulto , Adulto Jovem , Percepção da Fala/fisiologia , Aprendizagem/fisiologia , Estimulação Acústica , Reconhecimento Psicológico/fisiologia , Aprendizagem Verbal/fisiologia , Memória/fisiologia
10.
Front Psychol ; 15: 1451244, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-39193031

RESUMO

Introduction: Aggression in sports is often perceived as a necessary trait for success, especially in martial arts. Aggression can be assessed both explicitly and implicitly, taking into account the dual processing model. The purpose of the research was to examine explicit and indirect, latency-based measure of aggression in competitive athletes practicing striking combat sports, according to gender and sports performance. At the same time, we verified whether aggression (implicit/unconscious and explicit) predicts sports performance in martial artists. Materials and methods: A total of 85 athletes practicing striking combat sports took part in the research. For implicit, latency-based measure of aggression, an Implicit Associations Test (IAT) was used, while explicit aggression was assessed with the Romanian adaptation of the Makarowski's Aggression Questionnaire for martial arts athletes. Results: Data analysis revealed (using multivariate analysis of variance) that athletes from striking combat sports having international sports performances registered significantly higher D-scores (IAT, p = 0.014) and lower values for Go-ahead factor (p = 0.006), compared to athletes without outstanding results. Goodman and Kruskal tau association test was used to check the existing associations between athletes' gender and martial arts athletes' level of explicit and implicit aggression. In addition, binomial logistic regression procedures were performed, predicting martial artists' likelihood to obtain higher sports results, based on explicit and indirect aggression. Conclusion: A stronger association between Aggression and Others (at implicit/unconscious level) and a moderate level (generally) for Go-ahead factor of explicit aggression are associated with an increased likelihood of sports performances in athletes. In addition, male martial arts athletes are more persistent despite obstacles, remaining more on the offensive (no gender-related association were found in terms of indirect/unconscious aggression, and for Foul Play and Assertiveness factors of explicit aggression). The study underlines the importance of addressing athletes' subconscious level to promote more constructive behaviors in competitions.

11.
eNeuro ; 11(8)2024 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-39191485

RESUMO

Moving effectively is essential for any animal. Thus, many different kinds of brain processes likely contribute to learning and adapting movement. How these contributions are combined is unknown. Nevertheless, the field of motor adaptation has been working under the assumption that measures of explicit and implicit motor adaptation can simply be added in total adaptation. While this has been tested, we show that these tests were insufficient. We put this additivity assumption to the test in various ways and find that measures of implicit and explicit adaptation are not additive. This means that future studies should measure both implicit and explicit adaptation directly. It also challenges us to disentangle how various motor adaptation processes do combine when producing movements and may have implications for our understanding of other kinds of learning as well (data and code: https://osf.io/3yhw5).


Assuntos
Adaptação Fisiológica , Adaptação Fisiológica/fisiologia , Animais , Desempenho Psicomotor/fisiologia , Humanos , Aprendizagem/fisiologia , Movimento/fisiologia
12.
Psychiatr Psychol Law ; 31(4): 638-658, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-39118781

RESUMO

The primary goal of the presented research was to investigate how processing post-event information affects memory of details in an event viewed on video. We used two forms of post-event information: classic misinformation (changing or implanting new information into memory) and a new form that involves a correct explicit or implicit negation of the existence of an object in the video. We followed the three-step procedure used in studies on the misinformation effect, with a final memory test that was either immediate or delayed by a week and consisted in indicating which objects appeared in the video. We replicated the misinformation effect. More importantly, in the delayed test condition, both explicitly and implicitly negated objects were falsely recalled more often than unmentioned objects. These results indicate that it is possible to induce negation-related false memories; they also show that memory is impaired by negated post-event information or misleading post-event information.

13.
Materials (Basel) ; 17(15)2024 Aug 01.
Artigo em Inglês | MEDLINE | ID: mdl-39124448

RESUMO

In this paper, the development of a 3D adaptive probabilistic explicit cracking model for concrete is reported. The contribution offered herein consists in a new adaptive mesh strategy designed to optimize the use of interface elements in probabilistic explicit cracking models. The proposed adaptive mesh procedure is markedly different from other strategies found in the literature, since it takes into account possible influences on the redistribution of stresses after cracking and can also be applied to purely deterministic cracking models. The process of obtaining the most appropriate adaptive mesh procedure involved the development and evaluation of three different adaptivity strategies. Two of these adaptivity strategies were shown to be inappropriate due to issues related to stress redistribution after cracking. The validation results demonstrate that the developed adaptive probabilistic model is capable of predicting the scale effect at a level similar to that experimentally observed, considering the tensile failure of plain concrete specimens. The results also show that different softening levels can be obtained. The proposed adaptive mesh strategy proved to be advantageous, being able to promote significant reductions in the simulation time in comparison with the classical strategy commonly used in probabilistic explicit cracking models.

14.
J Comput Chem ; 2024 Aug 30.
Artigo em Inglês | MEDLINE | ID: mdl-39212073

RESUMO

Intramolecular charge transfer (ICT) effects of para-nitroaniline (pNA) in eight solvents (cyclohexane, toluene, acetic acid, dichloroethane, acetone, acetonitrile, dimethylsulfoxide, and water) are investigated extensively. The second-order algebraic diagrammatic construction, ADC(2), ab initio wave function is employed with the COSMO implicit and discrete multiscale solvation methods. We found a decreasing amine group torsion angle with increased solvent polarity and a linear correlation between the polarity and ADC(2) transition energies. The first absorption band involves π → π* transitions with ICT from the amine and the benzene ring to the nitro group, increased by 4%-11% for different solvation models of water compared to the vacuum. A second band of pNA is characterized for the first time. This band is primarily a local excitation on the nitro group, including some ICT from the amine group to the benzene ring that decreases with the solvent polarity. For cyclohexane, the COSMO implicit solvent model shows the best agreement with the experiment, while the explicit model has the best agreement for water.

15.
J Hum Nutr Diet ; 2024 Aug 07.
Artigo em Inglês | MEDLINE | ID: mdl-39110154

RESUMO

BACKGROUND: Weight stigma is pervasive within healthcare and negatively impacts both access to care and the patient-practitioner relationship. There is limited evidence on weight stigma among registered dietitians, particularly in the United Kingdom, though data show weight-related prejudice towards people living with obesity. The aim of this study was to examine both explicit and implicit weight stigma in practicing dietitians in the United Kingdom, as well as the lived experience of weight stigma among dietitians, both towards themselves and towards others. METHODS: An online cross-sectional survey was disseminated between February and May 2022 using snowball sampling. Inclusion criteria were that participants were UK registered dietitians aged 20-70 years. RESULTS: Four hundred and two dietitians responded to the survey (female [94.1%], mean age 40.2 years [standard deviation (SD) 10.7]; White ethnicity [90%]; median 12 years [interquartile range (IQR) 6, 22] within dietetic practice). Mean self-reported body mass index was 25.1 kg/m² (SD 8.7). Most dietitians reported experiencing weight stigma prior to (51%) and postregistration (59.7%), whereas nearly a quarter (21.1%) felt that weight influenced their ability as a dietitian. Weight stigma was experienced across the weight spectrum. Overall participants reported explicit weight bias attitudes, moderate beliefs that obesity is controllable and implicit antifat bias. Within open-ended responses, dietitians reported three key themes related to their personal experiences of weight stigma: (1) experiences of stigma in dietetic practice, (2) impact of weight stigma and (3) perception of weight, appearance and job. CONCLUSION: This study shows that UK dietitians exhibit both explicit and implicit weight bias towards people living with obesity. Dietitians reported experiencing weight stigma, which impacted their career-related decisions and their perception of their own ability to perform as dietitians. The study highlights the need to address weight stigma and its implications within the dietetic profession.

16.
Arch Sex Behav ; 2024 Aug 08.
Artigo em Inglês | MEDLINE | ID: mdl-39115630

RESUMO

The persistent debates over pornography have often focused on differences between males and females, not only in the frequency of consumption or the type of material consumed, but also on the different ways that individuals may perceive sexually explicit images and respond to them. Some of these differences may be due to sex differences in a number of factors including sexual strategies, pathogen or sexual disgust, and own mate value as well as within sex differences in these factors. Previous studies have demonstrated that perceptions of sexually explicit images are influenced by the sex of the target in the image and the target's emotional affect, as well as sex of the respondent, their sexual orientation, short-term mating orientation, and disgust measures. However, these previous studies were conducted with participants from the United States alone. This study compared the findings from these US samples to those from non-Western ones (Philippines and Brazil) in order to examine the replicability across cultures of the US results as well as whether some variables (religiosity, for example) account for more or less of the variance in perceptions in different populations. Results indicated that there were some differences in terms of the amount of variance in perceptions explained by different variables across populations. Participant and stimuli related variables explained more variance in the Philippines while individual difference variables accounted for more variance in Brazil.

17.
J Comput Chem ; 2024 Aug 14.
Artigo em Inglês | MEDLINE | ID: mdl-39139057

RESUMO

The recently developed efficient protocol to explicit quantum mechanical modeling of structure and IR spectra of liquids and solutions (S. A. Katsyuba, S. Spicher, T. P. Gerasimova, S. Grimme, J. Phys. Chem. B 2020, 124, 6664) is applied to ionic liquid (IL) 1-ethyl-3-methylimidazolium bromide (EmimBr), its C2-deuterated analog [Emim-d]Br and its aqueous solutions. It is shown that the solvation strongly modifies frequencies and IR intensities of the CH/CD stretching vibrations (νCH/νCD) of the imidazolium ring. The main vibrational spectroscopic features of the neat IL are reproduced by the simulations for a cluster (EmimBr)9, in which all three imidazolium CH moieties of the solvated cation form short contacts with three Br- anions, and another two Br- anions are located on top and bottom of imidazolium ring. Cluster models of aqueous solutions reproduce the experimental vibrational frequencies of actual solutions, provided that the Br- anion of solvated contact ion pair (CIP) is situated on top of imidazolium ring, and CH/CD moieties of the latter participate in short contacts with surrounding water molecules. Both structural and spectroscopic analysis allow to interpret the short contacts CH/CD⋯Br- and CH/CD⋯OH2 as hydrogen bonds of approximately equal strength. Enthalpies of bonding of these liquid-state H-bonds, estimated with the use of empirical correlations, amount to ca. 1.4 kcal⋅mol-1, while the analogous estimates obtained for the gas-phase charged species [Emim]2Br+ increase to 5.6 kcal⋅mol-1. It is shown that formation of solvent-shared ion pair (SIP) in aqueous solution, where the counterions of IL are separated by two water molecules H-bonded to a Br- anion, produces frequency shifts ΔνCH/CD, strongly different from the case of CIP formation. This difference can be used for IR/Raman spectroscopic differentiation of the type of solvated ion pairs of EmimBr or other related ILs.

18.
Polymers (Basel) ; 16(15)2024 Aug 01.
Artigo em Inglês | MEDLINE | ID: mdl-39125215

RESUMO

This article deals with stress wave decay performance, analysing the stress wave propagation generated by an impulsive unit load in a 2D representative unit cell (RUC) of a polymer composite with circular particles representing spherical particles, elliptical particles, and short fibres. The micro-scale numerical simulation uses explicit finite element analysis (FEA). The micro-response to an impulsive unit load creates a stress wave amplitude interacting with the material structure and tends to weaken and absorb energy. The stress wave damping is determined by the decaying amplitudes of Mises stress at the front of the stress wave. The stress wave damping is evaluated for different ratios of tensile modules and material densities of matrix and reinforcing material and other factors, such as percentage and particle size, applied to nine topologies of RUCs, and even the presence of an interfacial region is analysed. Moreover, the article visualises the phases of stress wave decay in various particle distributions, i.e., various topologies. Analysing the different topologies of the same particle volume (area) percentage, the study proved that the composite topology and resulting wave-particle and wave-wave interactions are other sources of material damping. The presence of even a small percentage, 3.5 area%, of reinforcing circular particles in the matrix brings a significant increase in stress wave damping up to about 40-43% (depending on the topology) compared to a homogeneous matrix with stress wave damping of 12.5% under the same conditions. Moreover, the topology with the same volume (area) percentage can increase particle stress wave damping by 15.3%.

19.
Am J Surg ; 236: 115834, 2024 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-38991911

RESUMO

BACKGROUND: Across surgery, marginalized individuals experience worse postoperative outcomes. These disparities stem from the interplay between multiple factors. METHODS: We introduced a novel framework to assess the role of barriers to access and bias in surgical complications (the uChicago Health Inequity Classification System, CHI-CS) in the setting of morbidity and mortality conference and assessed impact through pre and post implementation surveys. RESULTS: Access and bias were related to surgical complications in 14 â€‹% of cases. 97 â€‹% reported enhanced M&M presentations with the grading system, and 47 â€‹% reported a change in decision-making or practice style. Although post-implementation response rate was low, there were improvements in self-reported confidence and comfort in recognizing and discussing these issues. CONCLUSIONS: Implementation of the CHI-CS framework to discuss bias and access to care positively impacted the way providers view, discuss, and process health inequities.


Assuntos
Disparidades em Assistência à Saúde , Complicações Pós-Operatórias , Humanos , Projetos Piloto , Disparidades em Assistência à Saúde/estatística & dados numéricos , Complicações Pós-Operatórias/epidemiologia , Complicações Pós-Operatórias/classificação , Masculino , Feminino , Acessibilidade aos Serviços de Saúde , Pessoa de Meia-Idade , Adulto , Procedimentos Cirúrgicos Operatórios
20.
Cureus ; 16(6): e62258, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-39006587

RESUMO

INTRODUCTION: This study aimed to investigate the mechanism of memory function in the context of explicit memory in early-stage Alzheimer's disease (AD) using the short-form Japanese Verbal Learning Test (JVLT-9). METHODS: Participants were 20 patients with early-stage AD and a control group of 23 healthy older adults (normal controls: NC), each of whom was administered the JVLT-9, which is a verbal list learning task used to assess explicit memory comprehensively. Between-group differences for each score were investigated using the Mann-Whitney U test. A two-way analysis of variance (ANOVA) was performed for the number of correct recalls by group (AD/NC) × JVLT-9 task. In addition, the AD group was divided into a CDR 0.5 group and a CDR 1.0 group, and it was performed as a group (CDR 0.5/1.0) × JVLT-9 task two-way ANOVA. RESULTS: The results demonstrated that the AD group had lower immediate recall, learning rate, semantic clustering, and recognition discrimination and significantly higher intrusion errors compared to the NC group. Further, JVLT-9 recall and recognition rates were found to be lower with higher CDR (an index of dementia severity). CONCLUSION: These results are largely consistent with the features of explicit memory in AD reported in the English version, confirming the clinical utility of the JVLT-9 as a test of explicit memory function.

SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA