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1.
Behav Sci (Basel) ; 14(4)2024 Mar 22.
Artículo en Inglés | MEDLINE | ID: mdl-38667058

RESUMEN

This systematic review with meta-analysis aimed to explore the association between formal social participation and cognitive function in middle-aged and older adults using data from longitudinal studies. A comprehensive search was conducted in Scopus, PubMed, and Web of Science for longitudinal studies that assessed the association between formal social participation and cognitive function in middle-aged and older adults published between January 2010 to 19 August 2022. Risk of bias was judged using the RoBANS tool. Meta-analysis using a random-effects model was computed with odds ratio (OR) and 95% confidence interval (CI) for cognitive decline probability. Sensitivity analyses were made to explore any changes to the pooled statistical heterogeneity and pooled effect size. Certainty of evidence was judged using the GRADE framework. We included 15 studies comprising 136,397 participants from 5 countries. Meta-analyses showed that formal social participation was associated with reduced cognitive decline (OR = 0.78, 95% CI 0.75-0.82, p < 0.001), with very low certainty of evidence. Formal social participation appears to enhance cognition in middle-aged and older adults, but further high-quality research is needed given the very low certainty of evidence.

2.
Chem Asian J ; : e202400184, 2024 Apr 16.
Artículo en Inglés | MEDLINE | ID: mdl-38628038

RESUMEN

We reported a chiral oxamide-phosphine ligand (COAP-Ph)-Pd-catalyzed asymmetric [3+2] cycloaddition reaction between vinyl cyclopropane derived from 1,3-indanedione and 2-vinylcyclopropane-1,1-dicarboxylates with cyclic sulfonyl 1-azadienes. The corresponding reactions provided a series of enantiomerically active spiro cyclopentane-indandione and cyclopentane structures bearing three consecutive stereogenic centers in good yields with good diastereo- and enantioselectivity. The COAP-Pd complex serves not only to promote generation of chiral π-allyl-palladium intermediates and induce the asymmetry of the reaction, but also depress the background reaction.

3.
J Appl Res Intellect Disabil ; 37(3): e13235, 2024 May.
Artículo en Inglés | MEDLINE | ID: mdl-38561937

RESUMEN

BACKGROUND: Despite the enactment of disability laws/policies in India, research shows that caregivers of adults with intellectual and/or developmental disabilities experience inadequate formal supports/services due to dissemination barriers and lack of awareness about them. To address discrepancy between caregivers' support needs and the professionals' understanding of their needs, the study proposed to conduct a caregiver needs assessment so that culturally-tailored programs are developed. METHOD: A strengths-based mixed methods needs assessment was conducted with a convenience sample of 100 caregivers in Hyderabad, India. One hundred caregivers completed the survey and 15 caregivers participated in semi-structured interviews. RESULTS: Caregivers needed more and improved formal supports/services, particularly from the government. Caregivers faced systemic and attitudinal barriers, and personal impediments to accessing them. Needs differed by care recipients' intellectual disability level, gender, and intellectual disability related conditions. CONCLUSIONS: Researchers, service providers and policymakers need to adopt innovative strategies to improve formal supports/services access.


Asunto(s)
Cuidadores , Discapacidad Intelectual , Adulto , Niño , Humanos , Discapacidades del Desarrollo , India
5.
J Palliat Med ; 2024 Apr 22.
Artículo en Inglés | MEDLINE | ID: mdl-38647702

RESUMEN

Background: Hospice care frequently includes hands-on care from hospice aides, but the need for hospice aide care may vary in residential settings (e.g., assisted livings and nursing homes). Objectives: The objective of this study is to compare hospice aide use and factors associated with use across residential settings. Design: This longitudinal cohort study used data from Medicare beneficiaries in the United States enrolled in the Medicare Current Beneficiary Survey (MCBS) who died between 2010 and 2019 and had hospice claims and available residential setting data in MCBS (n = 1,915). Analysis: Decedent hospice aide use was compared by residential settings; multivariable models controlling for sociodemographic, clinical/functional, and hospice characteristics examined factors associated with hospice aide care in different residential settings. Results: Hospice aide visits were least common in the community setting (64.4% vs. 76.6% vs. 72.6% with any hospice aide visits in community, assisted living, and nursing home, respectively, p = 0.001). In adjusted models, factors associated with hospice aide visits did not significantly differ by residential settings. Conclusions: Despite staff providing hands-on support in assisted livings and nursing homes, hospice aide visits were more common in residential as opposed to community settings, and factors associated with hospice aide visits were similar among settings. To maximize the potentially positive impact of hospice aides on overall care, additional work is needed to understand when hospice aides are used and how hospice aides collaborate with families and care teams. This will help to ensure that hospice care is appropriately tailored to individual care needs in all residential settings.

6.
Public Health Rev ; 45: 1606562, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38601905

RESUMEN

Objective: This article aims to conduct a scoping review of what constitutes effective relational interactions between caregivers (CGs) and older persons (OPs) across formal residential care settings. Methods: A scoping review of publications between January 2000 and December 2021 yielded 10,929 articles, and after removing duplicates and applying exclusion criteria, 36 articles were analysed. Results: Articles were scrutinised for interactions involving both CGs and OPs, using a thematic framework analysis to identify effective relational constructs. Four themes emerged: 1) Diverse perspectives on the same context: for OPs it is home, and for CGs, workplace. 2) CGs move for a one-up position and OPs submit to a one-down, or as friends. 3) Relational qualities have been mostly associated with CGs, confirming care as a unidirectional action 4). Relationships between CGs and OPs result either in effective or ineffective care outcomes. Conclusion: The dual meanings attached to the same context limit the authentic interactions between CGs and OPs. We propose a relational caregiving approach by considering the interactions of both CGs and OPs, changing the relational definition, and demonstrating effective relational qualities.

7.
Front Public Health ; 12: 1354263, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38638476

RESUMEN

Objective: This study examined differences in care burden between formal and informal caregivers of dependent older adults according to care-related characteristics, and whether care time had a moderating effect on the relationship between care-related characteristics and caregiver burden. Methods: Participants were formal (n = 520) and informal caregivers (n = 142) of dependent older adults in South Korea. Caregiver burden was measured using the Korean version of the Zarit Burden Interview. Data were analyzed using hierarchical regression with interaction terms and moderation analysis. Results: Caregiver burden was higher for informal caregivers than formal caregivers. Factors associated with an increased risk of caregiver burden in both formal and informal caregiver of dependent older adults were caregivers' stress, physical strain, and care time. Care time significantly moderated the relationship between care attitude and care burden only among formal caregivers. When formal caregivers' care time was 1 standard deviation higher than the mean value, care attitude was significantly associated with care burden (bsimple = -0.903, SE = 0.106, p < 0.001). Conclusion: The caregiver burden of dependent older adults can be reduced by providing interventions to attenuate the effects of modifiable risk factors that were identified in this study. And to weaken the relationship between care attitude and burden of formal caregivers who have long care hours, a positive social atmosphere for care should be provided in addition to education. To realize sustainable care, policy considerations that reflect the results of this study will help solve the problem of formal and informal caregiver burden of dependent older adults.


Asunto(s)
Carga del Cuidador , Cuidadores , Humanos , Anciano , Costo de Enfermedad , Estudios Transversales , República de Corea
8.
Wiley Interdiscip Rev Cogn Sci ; : e1680, 2024 Apr 24.
Artículo en Inglés | MEDLINE | ID: mdl-38655871

RESUMEN

The evolution of cognition can be understood in terms of a few major transitions-changes in the computational architecture of nervous systems that changed what cognitive capacities could be evolved by downstream lineages. We demonstrate how the idea of a major cognitive transition can be modeled in terms of where a system's effective computational architecture falls on the well-studied hierarchy of formal automata (HFA). We then use recent work connecting artificial neural networks to the HFA, which provides a way to make the structure-architecture link in natural systems. We conclude with reflections on the power and the challenges of traditional thinking when applied to neural architectures. This article is categorized under: Cognitive Biology > Evolutionary Roots of Cognition Psychology > Comparative Philosophy > Foundations of Cognitive Science.

9.
J Clin Nurs ; 2024 Apr 08.
Artículo en Inglés | MEDLINE | ID: mdl-38590040

RESUMEN

AIMS: Based on the two-factor model of caregiving appraisals, this study aims to (1) investigate the relationships between competence in dementia care and job satisfaction (work attitudes in positive aspect) and turnover intention (work attitudes in negative aspect) among formal caregivers in nursing homes, and (2) examine the mediating roles of positive aspects of caregiving (caregiving appraisals in positive aspect) and caregiving burden (caregiving appraisals in negative aspect) in the above associations. DESIGN: A cross-sectional design was used. Structural equation modelling was employed to test the proposed model. STROBE checklist guides the reporting of this study. METHODS: Using the multistage cluster sampling method, 407 formal caregivers were selected from 43 nursing homes across 7 districts/counties in China. RESULTS: The proposed model shows a good model fit. Competence in dementia care shows significant positive associations with increased job satisfaction and decreased turnover intention among formal caregivers in nursing homes. Caregiving burden and positive aspects of caregiving mediate the relationships between competence in dementia care and both job satisfaction and turnover intention. Furthermore, the relationship between positive aspects of caregiving and job satisfaction is stronger than that with turnover intention, but the relationship between caregiving burden and turnover intention is not stronger than that with job satisfaction. CONCLUSIONS: The results demonstrate that the two-factor model of caregiving appraisals effectively elucidates the associations and underlying mechanisms between competence in dementia care and formal caregivers' work attitudes. Specifically, two crucial conclusions are drawn: (1) competence in dementia care is associated with higher levels of job satisfaction and lower levels of turnover intention among formal caregivers in nursing homes; (2) caregiving burden and positive aspects of caregiving serve as parallel mediators in these associations. IMPLICATIONS FOR THE PROFESSION AND/OR PATIENT CARE: Policymakers and nursing homes managers should implement a series of measures aimed at formal caregivers in nursing home. Specifically, allocating more resources to enhance the competence in dementia care of formal caregivers is crucial, given its significant association with elevated job satisfaction and reduced turnover intention. Besides, positive and negative caregiving appraisals emerge as proximal factors influencing work attitudes of formal caregivers. Therefore, intervention projects focused on formal caregivers in nursing home should target enhancing positive experiences and alleviating caregiving burden. PATIENT OR PUBLIC CONTRIBUTION: No patient or public contribution.

10.
J Music Ther ; 2024 Apr 11.
Artículo en Inglés | MEDLINE | ID: mdl-38600758

RESUMEN

Music-based interventions are acknowledged to be accessible and beneficial to people living with dementia. As part of an over-arching research project exploring the contributions of person-centered caregiver singing (PCCS) intervention to caregiver's provision of care, this study aimed to explore caregiver's experiences of a PCCS training program. 8 caregivers across 2 care homes in South Africa participated in 4 iterative participatory cycles aimed at refining the training protocol. We completed a thematic analysis of semi-structured interviews of caregivers' experiences of the training. 3 themes emerged: workshop components contributed to positive learning experiences; caregivers' increased knowledge and insight into dementia, music, and personhood; and caregivers' enhanced self-efficacy which encompassed their emotional wellbeing, self-awareness, and confidence. Our study highlights caregivers' self-efficacy, self-hood, and personhood as valuable benefits in person-centered care training. Caregivers experienced training as both professionally and personally beneficial. While PCCS supported a shift toward a person-centered care approach, further research would help establish approaches to support sustainability of PCCS training and use in wider contexts.

11.
Anim Cogn ; 27(1): 12, 2024 Mar 02.
Artículo en Inglés | MEDLINE | ID: mdl-38429548

RESUMEN

There are indications that companion dogs of multi-dog households form a hierarchy, maintained by formal and agonistic dominance. Although it was found that the behaviour of dogs depends on their rank in several contexts, so far, the assessment of their rank itself has been based on owner-completed questionnaires. With this research we endeavoured to find associations between rank scores from the Dog Rank Assessment Questionnaire (DRA-Q) and cohabiting dogs' behaviour in a competitive test (Toy Possession test-32 dog pairs) and a non-competitive, citizen science scenario (Greeting test-20 dog pairs). Based on the grabbing the toy first and keeping the toy at the end variables, the dogs' rank score provided a reliable indication of the dominant and subordinate dogs' behaviour in the Toy Possession test. Similarly, the occurrence of dominant and submissive behaviours in the Greeting Test showed a good match with the agonistic and leadership subscores of the composite rank score from the DRA-Q. Our results provide a pioneering case for validating a questionnaire-based rank scoring method with biologically meaningful behavioural tests in the case of companion dogs. The finer analysis of the results highlighted that in the case of a multi-question scoring system, some components might provide more effective prediction of the dogs' rank-related behaviour in some situations, while other components are more relevant in others, with traits related to agonistic dominance having relevance across contexts.


Asunto(s)
Conducta Animal , Mascotas , Perros , Animales , Predominio Social , Vínculo Humano-Animal , Encuestas y Cuestionarios
13.
Soc Sci Med ; 347: 116746, 2024 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-38471406

RESUMEN

OBJECTIVES: This study aims to explore the effect of past alcohol consumption frequency on formal and informal long-term care (LTC) use in old age and explore the different channels through which it may affect LTC use. MOTIVATION: The existing literature has mainly focused on risk factors associated with a nursing home entry, but this evidence is outdated, not UK-focused, and does not look into other types of care, such as informal care. The results of this study will help in modelling the future demand for various types of care and the corresponding public spending. METHODS: We use the English Longitudinal Study of Ageing (ELSA) (2002-2017) dataset to conduct longitudinal, individual-level analysis. We explore how the previous frequency of alcohol consumption affects formal and informal care use. We focus on people aged 65 and over with no previous LTC use and run regressions with and without instrumental variables (IV) to estimate how alcohol consumption patterns in the previous wave (2 years before) affect formal and informal care use. For IV regressions, we use the polygenic score for alcohol use, available for a subsample of ELSA respondents, as an instrument while also accounting for sociodemographic characteristics, lifestyle choices, and health conditions. RESULTS: The main IV estimates suggest that frequent alcohol consumption has a weakly significant positive effect on the onset of formal LTC care use compared to none/rare drinking. This relationship diminishes and is not statistically significant when we directly control for health status. We find no statistically significant effect towards informal LTC use. These results contrast with the estimates without IV, which suggest that frequent alcohol consumption is negatively associated with informal care use and no or weakly negative association with formal care use. DISCUSSION: Our findings suggest that unobserved confounding is important when studying the relationship between alcohol consumption and LTC. We hypothesise that primarily alcohol effects LTC through its adverse effect on health. In addition, unobserved factors like preferences towards seeking care, social behaviour may be related to alcohol consumption and affect access to care. We speculate alcohol may have a damaging effect on personal relationships and could indicate the burden eventually falling on formal care. In as far as the polygenic score IV can account for unobserved preference-behaviour differences, the results (weakly) support the hypothesis that these latter processes are relevant, especially for informal care use.


Asunto(s)
Cuidadores , Cuidados a Largo Plazo , Humanos , Anciano , Estudios Longitudinales , Políticas , Consumo de Bebidas Alcohólicas/epidemiología
14.
Radiol Med ; 129(4): 549-557, 2024 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-38512608

RESUMEN

Liver steatosis is the most common chronic liver disease and affects 10-24% of the general population. As the grade of disease can range from fat infiltration to steatohepatitis and cirrhosis, an early diagnosis is needed to set the most appropriate therapy. Innovative noninvasive radiological techniques have been developed through MRI and US. MRI-PDFF is the reference standard, but it is not so widely diffused due to its cost. For this reason, ultrasound tools have been validated to study liver parenchyma. The qualitative assessment of the brightness of liver parenchyma has now been supported by quantitative values of attenuation and scattering to make the analysis objective and reproducible. We aim to demonstrate the reliability of quantitative ultrasound in assessing liver fat and to confirm the inter-operator reliability in different respiratory phases. We enrolled 45 patients examined during normal breathing at rest, peak inspiration, peak expiration, and semi-sitting position. The highest inter-operator agreement in both attenuation and scattering parameters was achieved at peak inspiration and peak expiration, followed by semi-sitting position. In conclusion, this technology also allows to monitor uncompliant patients, as it grants high reliability and reproducibility in different body position and respiratory phases.


Asunto(s)
Enfermedad del Hígado Graso no Alcohólico , Humanos , Enfermedad del Hígado Graso no Alcohólico/diagnóstico , Enfermedad del Hígado Graso no Alcohólico/patología , Reproducibilidad de los Resultados , Hígado/diagnóstico por imagen , Ultrasonografía/métodos , Cirrosis Hepática/patología , Imagen por Resonancia Magnética/métodos
15.
BMC Health Serv Res ; 24(1): 300, 2024 Mar 06.
Artículo en Inglés | MEDLINE | ID: mdl-38448964

RESUMEN

OBJECTIVE: The objective was to gain knowledge about how external inspections following serious incidents are played out in a Norwegian hospital context from the perspective of the inspectors, and whether stakeholders' views are involved in the inspection. METHODS: Based on a qualitative mixed methods design, 10 government bureaucrats and inspectors situated at the National Board of Health Supervision and three County Governors in Norway, were strategically recruited, and individual semi-structured interviews were conducted. Key official government documents were selected, collected, and thematically analyzed along with the interview data. RESULTS: Our findings overall demonstrate two overarching themes: Theme (1) Perspectives on different external inspection approaches of responding and involving stakeholders in external inspection following serious incidents, Theme (2) Inspectors' internal work practices versus external expectations. Documents and all participants reported a development towards new approaches in external inspection, with more policies and regulatory attention to sensible involvement of stakeholders. Involvement and interaction with patients and informal caregivers could potentially inform the case complexity and the inspector's decision-making process. However, stakeholder involvement was sometimes complex and challenging due to e.g., difficult communication and interaction with patients and/or informal caregivers, due to resource demands and/or the inspector's lack of experience and/or relevant competence, different perceptions of the principle of sound professional practice, quality, and safety. The inspectors considered balancing the formal objectives and expectations, with the expectations of the public and different stakeholders (i.e. hospitals, patients and/or informal caregivers) a challenging part of their job. This balance was seen as an important part of the continuous development of ensuring public trust and legitimacy in external inspection processes. CONCLUSIONS AND IMPLICATIONS: Our study suggests that the regulatory system of external inspection and its available approaches of responding to a serious incident in the Norwegian setting is currently not designed to accommodate the complexity of needs from stakeholders at the levels of hospital organizations, patients, and informal caregivers altogether. Further studies should direct attention to how the wider system of accountability structures may support the internal work practices in the regulatory system, to better algin its formal objectives with expectations of the public.


Asunto(s)
Ácido Algínico , Comunicación , Humanos , Gobierno , Promoción de la Salud , Hospitales
16.
Heliyon ; 10(6): e27759, 2024 Mar 30.
Artículo en Inglés | MEDLINE | ID: mdl-38515697

RESUMEN

Avian pathogenic Escherichia coli (APEC) has been identified as a sub-group of extraintestinal pathogenic E. coli (ExPEC). Recent studies indicate APEC as a potential foodborne zoonotic pathogen and a source or reservoir of human extraintestinal infections. The slaughtering and processing of poultry in low-income countries such as Jordan occurs in two distinct ways: in informal facilities known as Natafat and in formal slaughterhouses. This study compared E. coli phenotypes and genotypes according to slaughtering conditions (formal slaughterhouses vs. informal slaughter facilities). Therefore, liver samples (n = 242) were collected from formal (n = 121) and informal slaughter facilities (n = 121). Results revealed a high prevalence (94.2%) of E. coli among all isolates, with 59 (17 formal and 42 informal) isolates considered avian pathogenic E. coli (APEC) based on the virulence-associated genes. The prevalence of resistance among isolates was relatively high, reaching up to 99% against penicillin and 97% against nalidixic acid. However, the prevalence of resistance was the lowest (1.3%) against both meropenem and imipenem. Based on the MIC test findings, colistin resistance was 46.9% (107/228). The mcr -1 gene prevalence was 51.4% (55/107), of which 17.1 % were from formal plants (6/36) and 68.1% from informal facilities (49/72). Interestingly, only one isolate (0.9%) expressed mcr-10. Escherichia coli O157:H7 and associated virulence genes were found more in informal (n = 15 genes) than in formal slaughterhouses (n = 8). Phylogroups B1, C, and A were the most frequent in 228 E. coli isolates, while G, B2, and clade were the least frequent. In conclusion, these findings highlight the importance of implementing biosecurity measures in slaughterhouses to reduce antibiotic-resistant E. coli spread. Furthermore, this study provides valuable insights into the effects of wet market (Natafat) slaughter conditions on increasing bacterial resistance and virulence.

17.
BMC Prim Care ; 25(1): 90, 2024 Mar 18.
Artículo en Inglés | MEDLINE | ID: mdl-38500048

RESUMEN

BACKGROUND: Direct oral anticoagulants for the treatment of venous thromboembolism are supported by robust clinical trial evidence. Despite published guidance, general practitioners are faced with increasingly complex decisions and implementation remains sub-optimal in certain real-world scenarios. METHODS: A two stage formal consensus exercise was performed to formulate consensus statements and a summary guide, facilitating optimal management of direct oral anticoagulants in venous thromboembolism patients by generalist physicians across Europe. An online questionnaire distributed to a broad panel (Phase 1), followed by a virtual panel discussion by an expert group (Phase 2) were conducted. Phase 1 statements covered nine management domains, and were developed via a literature review and expert steering committee. Participants rated statements by their level of agreement. Phase 1 responses were collated and analysed prior to discussion and iterative refinement in Phase 2. RESULTS: In total 56 participants from across Europe responded to Phase 1. The majority had experience working as general practitioners. Consensus indicated that direct oral anticoagulants are the treatment of choice for managing patients with venous thromboembolism, at initiation and for extended treatment, with a review at three to six months to re-assess treatment effect and risk profile. Direct oral anticoagulant choice should be based on individual patient factors and include shared treatment choice between clinicians and patients; the only sub-group of patients requiring specific guidance are those with cancer. CONCLUSION: Results demonstrate an appreciation of best practices, but highlight challenges in clinical practice. The patient pathway and consensus recommendations provided, aim to highlight key considerations for general practice decision making, and aid optimal venous thromboembolism treatment.


Asunto(s)
Neoplasias , Tromboembolia Venosa , Humanos , Tromboembolia Venosa/tratamiento farmacológico , Anticoagulantes/uso terapéutico , Pacientes , Neoplasias/tratamiento farmacológico , Atención Primaria de Salud
18.
Psicol Reflex Crit ; 37(1): 11, 2024 Mar 19.
Artículo en Inglés | MEDLINE | ID: mdl-38502288

RESUMEN

OBJECTIVES: The situation caused by the COVID-19 pandemic has had an impact on the mental, physical, and social health of nursing home staff. The operations and protocols of long-term care facilities had to be adapted to a new, unforeseen, and unknown situation in which a devastating and highly contagious disease was causing large numbers of deaths. The aim of this study was to determine the cumulative impact of the COVID-19 pandemic on care, technical, coordinating-supervisory, and managerial staff working in nursing homes. METHODS: Correlation analysis and between-group comparisons were carried out to study the relationship between burnout scores, emotional balance, and organic and behavioral symptoms. RESULTS: The results indicate high levels of burnout and psychological exhaustion. Management professionals displayed higher levels of organic and behavioral symptoms than other professional categories in the same care settings. Despite this negative symptomatology, most professionals showed a positive emotional balance. CONCLUSION: The need to develop intervention programs to improve the mental, physical, and occupational health of the staff in nursing homes, considering the needs of different professional categories, is emphasized.

19.
Psiquiatr. biol. (Internet) ; 31(1): [100438], ene.-mar 2024.
Artículo en Español | IBECS | ID: ibc-231630

RESUMEN

La adecuada comprensión de un término psicopatológico requiere, no solo del conocimiento de la alteración descrita, sino también de los contextos y conceptos a partir de los cuales fue acuñado y de la transformación de los mismos a lo largo del tiempo. En el caso del trastorno formal del pensamiento se describe su evolución desde su incorporación a la psicopatología con fines puramente descriptivos y asociado a la influencia del asociacionismo y a la idea de una dependencia directa entre pensamiento y lenguaje hasta la actualidad, en que el uso de herramientas computacionales y de hipótesis provenientes de la lingüística han promovido su uso como instrumento diagnóstico y marcador pronóstico, al tiempo que ha significado la incorporación de nueva terminología. (AU)


Properly understanding a psychopathological term requires knowledge of the disorder described, the contexts and concepts from which it was coined, and its modification over time. In the case of formal thought disorder, we describe its evolution from its incorporation into psychopathology for purely descriptive purposes and associated with the influence of associationism and the idea of a direct dependence between thought and language to the present day, in which the use of computational tools and hypotheses from linguistics have promoted its use as a diagnostic tool and prognostic marker, while simultaneously leading to the incorporation of new terminology. (AU)


Asunto(s)
Humanos , Historia del Siglo XIX , Historia del Siglo XX , Historia del Siglo XXI , Pensamiento , Psicopatología/historia , Psicopatología/tendencias , Desarrollo del Lenguaje , Cognición , Estudios Observacionales como Asunto/historia , Terminología como Asunto , Diagnóstico por Computador , Esquizofrenia , Lingüística
20.
PeerJ Comput Sci ; 10: e1806, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38435549

RESUMEN

An implicational base is knowledge extracted from a formal context. The implicational base of a formal context consists of attribute implications which are sound, complete, and non-redundant regarding to the formal context. Non-redundant means that each attribute implication in the implication base cannot be inferred from the others. However, sometimes some attribute implications in the implication base can be inferred from the others together with a prior knowledge. Regarding knowledge discovery, such attribute implications should be not considered as new knowledge and ignored from the implicational base. In other words, such attribute implications are redundant based on prior knowledge. One sort of prior knowledge is a set of constraints that restricts some attributes in data. In formal context, constraints restrict some attributes of objects in the formal context. This article proposes a method to generate non-redundant implication base of a formal context with some constraints which restricting the formal context. In this case, non-redundant implicational base means that the implicational base does not contain all attribute implications which can be inferred from the others together with information of the constraints. This article also proposes a formulation to check the redundant attribute implications and encoding the problem into satisfiability (SAT) problem such that the problem can be solved by SAT Solver, a software which can solve a SAT problem. After implementation, an experiment shows that the proposed method is able to check the redundant attribute implication and generates a non-redundant implicational base of formal context with constraints.

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