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1.
Proc Natl Acad Sci U S A ; 121(7): e2311703121, 2024 Feb 13.
Artículo en Inglés | MEDLINE | ID: mdl-38315863

RESUMEN

Global polls have shown that people in high-income countries generally report being more satisfied with their lives than people in low-income countries. The persistence of this correlation, and its similarity to correlations between income and life satisfaction within countries, could lead to the impression that high levels of life satisfaction can only be achieved in wealthy societies. However, global polls have typically overlooked small-scale, nonindustrialized societies, which can provide an alternative test of the consistency of this relationship. Here, we present results from a survey of 2,966 members of Indigenous Peoples and local communities among 19 globally distributed sites. We find that high average levels of life satisfaction, comparable to those of wealthy countries, are reported for numerous populations that have very low monetary incomes. Our results are consistent with the notion that human societies can support very satisfying lives for their members without necessarily requiring high degrees of monetary wealth.


Asunto(s)
Renta , Satisfacción Personal , Humanos , Pobreza , Sociedades , Problemas Sociales
2.
Hepatology ; 79(6): 1279-1292, 2024 Jun 01.
Artículo en Inglés | MEDLINE | ID: mdl-38146932

RESUMEN

BACKGROUND AND AIMS: Alagille syndrome (ALGS) is characterized by chronic cholestasis with associated pruritus and extrahepatic anomalies. Maralixibat, an ileal bile acid transporter inhibitor, is an approved pharmacologic therapy for cholestatic pruritus in ALGS. Since long-term placebo-controlled studies are not feasible or ethical in children with rare diseases, a novel approach was taken comparing 6-year outcomes from maralixibat trials with an aligned and harmonized natural history cohort from the G lobal AL agille A lliance (GALA) study. APPROACH AND RESULTS: Maralixibat trials comprise 84 patients with ALGS with up to 6 years of treatment. GALA contains retrospective data from 1438 participants. GALA was filtered to align with key maralixibat eligibility criteria, yielding 469 participants. Serum bile acids could not be included in the GALA filtering criteria as these are not routinely performed in clinical practice. Index time was determined through maximum likelihood estimation in an effort to align the disease severity between the two cohorts with the initiation of maralixibat. Event-free survival, defined as the time to first event of manifestations of portal hypertension (variceal bleeding, ascites requiring therapy), surgical biliary diversion, liver transplant, or death, was analyzed by Cox proportional hazards methods. Sensitivity analyses and adjustments for covariates were applied. Age, total bilirubin, gamma-glutamyl transferase, and alanine aminotransferase were balanced between groups with no statistical differences. Event-free survival in the maralixibat cohort was significantly better than the GALA cohort (HR, 0.305; 95% CI, 0.189-0.491; p <0.0001). Multiple sensitivity and subgroup analyses (including serum bile acid availability) showed similar findings. CONCLUSIONS: This study demonstrates a novel application of a robust statistical method to evaluate outcomes in long-term intervention studies where placebo comparisons are not feasible, providing wide application for rare diseases. This comparison with real-world natural history data suggests that maralixibat improves event-free survival in patients with ALGS.


Asunto(s)
Síndrome de Alagille , Humanos , Síndrome de Alagille/complicaciones , Síndrome de Alagille/tratamiento farmacológico , Femenino , Masculino , Estudios Retrospectivos , Niño , Lactante , Preescolar , Supervivencia sin Progresión , Adolescente , Proteínas Portadoras , Glicoproteínas de Membrana
3.
J Infect Dis ; 2024 Feb 08.
Artículo en Inglés | MEDLINE | ID: mdl-38330207

RESUMEN

We obtained samples from the Department of Defense Serum Repository from soldiers who were stationed at Fort Liberty, North Carolina, between 1991 and 2019 to assess temporal trends in tick-borne rickettsiosis and ehrlichiosis. Serological evidence of infection was common, with nearly 1 in 5 (18.9%) demonstrating antibodies. We observed significant decreases in Rickettsia seroprevalence (adjusted odds ratio [aOR], 0.42 [95% CI, .27-.65], P = .0001) while over the same period Ehrlichia seroprevalence, albeit less common, nearly doubled (aOR, 3.61 [95% CI, 1.10-13.99], P = .048). The increase in Ehrlichia seroprevalence likely reflects increased transmission resulting from the expanding geographic range of the lone star tick.

4.
Hepatology ; 78(6): 1698-1710, 2023 Dec 01.
Artículo en Inglés | MEDLINE | ID: mdl-37278241

RESUMEN

BACKGROUND AND AIMS: Refractory pruritus and other complications of cholestasis are indications for liver transplantation (LT) in patients with Alagille syndrome (ALGS). We evaluated predictors of event-free survival and transplant-free survival in patients with ALGS treated with maralixibat (MRX), an ileal bile acid transporter inhibitor. APPROACH AND RESULTS: We assessed patients with ALGS from 3 clinical trials of MRX with up to 6 years of follow-up. Event-free survival was defined as the absence of LT, surgical biliary diversion, hepatic decompensation, or death; transplant-free survival was the absence of LT or death. Forty-three potential predictors were evaluated, including age, pruritus (ItchRO[Obs] 0-4 scale), biochemistries, platelets, and serum bile acids. Harrell's concordance statistic assessed goodness-of-fit, and then, Cox proportional hazard models confirmed the statistical significance of the predictors identified. A further analysis was performed to identify cutoffs using a grid search. Seventy-six individuals met the criteria of receiving MRX for ≥48 weeks with laboratory values available at week 48 (W48). The median duration of MRX was 4.7 years (IQR: 1.6-5.8); 16 had events (10 LT, 3 decompensation, 2 death, and 1 surgical biliary diversion). The 6-year event-free survival improved with a clinically meaningful >1-point ItchRO(Obs) reduction from baseline to W48 (88% vs. 57%; p = 0.005), W48 bilirubin < 6.5 mg/dL (90% vs. 43%; p < 0.0001), and W48 serum bile acid < 200 µmol/L (85% vs. 49%; p = 0.001). These parameters were also predictive of 6-year transplant-free survival. CONCLUSIONS: Improvement in pruritus by 48 weeks, and lower W48 bilirubin and serum bile acid levels were associated with fewer events. These data may help identify potential markers of disease progression for ALGS patients treated with MRX.


Asunto(s)
Síndrome de Alagille , Humanos , Síndrome de Alagille/tratamiento farmacológico , Supervivencia sin Progresión , Estudios Retrospectivos , Bilirrubina , Prurito/tratamiento farmacológico , Prurito/etiología , Ácidos y Sales Biliares
5.
Hepatology ; 77(2): 512-529, 2023 02 01.
Artículo en Inglés | MEDLINE | ID: mdl-36036223

RESUMEN

BACKGROUND AND AIMS: Alagille syndrome (ALGS) is a multisystem disorder, characterized by cholestasis. Existing outcome data are largely derived from tertiary centers, and real-world data are lacking. This study aimed to elucidate the natural history of liver disease in a contemporary, international cohort of children with ALGS. APPROACH AND RESULTS: This was a multicenter retrospective study of children with a clinically and/or genetically confirmed ALGS diagnosis, born between January 1997 and August 2019. Native liver survival (NLS) and event-free survival rates were assessed. Cox models were constructed to identify early biochemical predictors of clinically evident portal hypertension (CEPH) and NLS. In total, 1433 children (57% male) from 67 centers in 29 countries were included. The 10 and 18-year NLS rates were 54.4% and 40.3%. By 10 and 18 years, 51.5% and 66.0% of children with ALGS experienced ≥1 adverse liver-related event (CEPH, transplant, or death). Children (>6 and ≤12 months) with median total bilirubin (TB) levels between ≥5.0 and <10.0 mg/dl had a 4.1-fold (95% confidence interval [CI], 1.6-10.8), and those ≥10.0 mg/dl had an 8.0-fold (95% CI, 3.4-18.4) increased risk of developing CEPH compared with those <5.0 mg/dl. Median TB levels between ≥5.0 and <10.0 mg/dl and >10.0 mg/dl were associated with a 4.8 (95% CI, 2.4-9.7) and 15.6 (95% CI, 8.7-28.2) increased risk of transplantation relative to <5.0 mg/dl. Median TB <5.0 mg/dl were associated with higher NLS rates relative to ≥5.0 mg/dl, with 79% reaching adulthood with native liver ( p < 0.001). CONCLUSIONS: In this large international cohort of ALGS, only 40.3% of children reach adulthood with their native liver. A TB <5.0 mg/dl between 6 and 12 months of age is associated with better hepatic outcomes. These thresholds provide clinicians with an objective tool to assist with clinical decision-making and in the evaluation of therapies.


Asunto(s)
Síndrome de Alagille , Colestasis , Hipertensión Portal , Humanos , Niño , Masculino , Femenino , Síndrome de Alagille/epidemiología , Estudios Retrospectivos , Hipertensión Portal/etiología
6.
Crit Care ; 28(1): 30, 2024 01 23.
Artículo en Inglés | MEDLINE | ID: mdl-38263076

RESUMEN

BACKGROUND: There is conflicting evidence on association between quick sequential organ failure assessment (qSOFA) and sepsis mortality in ICU patients. The primary aim of this study was to determine the association between qSOFA and 28-day mortality in ICU patients admitted for sepsis. Association of qSOFA with early (3-day), medium (28-day), late (90-day) mortality was assessed in low and lower middle income (LLMIC), upper middle income (UMIC) and high income (HIC) countries/regions. METHODS: This was a secondary analysis of the MOSAICS II study, an international prospective observational study on sepsis epidemiology in Asian ICUs. Associations between qSOFA at ICU admission and mortality were separately assessed in LLMIC, UMIC and HIC countries/regions. Modified Poisson regression was used to determine the adjusted relative risk (RR) of qSOFA score on mortality at 28 days with adjustments for confounders identified in the MOSAICS II study. RESULTS: Among the MOSAICS II study cohort of 4980 patients, 4826 patients from 343 ICUs and 22 countries were included in this secondary analysis. Higher qSOFA was associated with increasing 28-day mortality, but this was only observed in LLMIC (p < 0.001) and UMIC (p < 0.001) and not HIC (p = 0.220) countries/regions. Similarly, higher 90-day mortality was associated with increased qSOFA in LLMIC (p < 0.001) and UMIC (p < 0.001) only. In contrast, higher 3-day mortality with increasing qSOFA score was observed across all income countries/regions (p < 0.001). Multivariate analysis showed that qSOFA remained associated with 28-day mortality (adjusted RR 1.09 (1.00-1.18), p = 0.038) even after adjustments for covariates including APACHE II, SOFA, income country/region and administration of antibiotics within 3 h. CONCLUSIONS: qSOFA was independently associated with 28-day mortality in ICU patients admitted for sepsis. In LLMIC and UMIC countries/regions, qSOFA was associated with early to late mortality but only early mortality in HIC countries/regions.


Asunto(s)
Puntuaciones en la Disfunción de Órganos , Sepsis , Humanos , APACHE , Unidades de Cuidados Intensivos , Pronóstico , Estudios Prospectivos
7.
J Water Health ; 22(3): 627-638, 2024 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-38557576

RESUMEN

This paper explores the socio-cultural and gender-based dynamics associated with place values, and their implications for women's access to water through case studies of upland and riverine communities in southern Nigeria. We used a range of fieldwork methods including public meetings, focus group discussions, in-depth interviews, keen observations, key informants and other secondary sources. Our findings show that drinking water sources are a part of the many forms of visible material structures that embody and generate automatic reproduction of gender-based beliefs, attitudes, feelings and practices. The outcome of such practices affects men and women differently in relation to access, workload and capacity for hygiene and other socio-economic practices. In discussing access to essential public goods, social and economic capacities take priority focus over the impact of 'place values' either as standalone or intersectional elements. Research should be expanded to incorporate these elements and their intersectional perspectives in shaping access to water.


Asunto(s)
Higiene , Agua , Masculino , Humanos , Femenino , Nigeria
8.
BMC Public Health ; 24(1): 952, 2024 Apr 02.
Artículo en Inglés | MEDLINE | ID: mdl-38566137

RESUMEN

BACKGROUND: Urogenital schistosomiasis (UgS) remains a persistent health challenge among adolescents in Anambra State, Nigeria, despite ongoing control efforts. Mass praziquantel treatment programs, initiated in 2013, primarily target primary school-aged children (5-14 years old), leaving adolescents (10-19 years old) enrolled in secondary schools vulnerable to urogenital schistosomiaisis. Additionally, the extent of female genital schistosomiasis (FGS), a neglected gynaecological manifestation of UgS remains unclear. METHODOLOGY: To address these gaps, a cross-sectional study was conducted in Anaocha Local Government Area from February to May 2023. Four hundred and seventy consenting adolescents aged 10-19 years were enrolled. Urinalysis including urine filtration was employed to confirm haematuria and detect urogenital schistosomiasis (UGS) among the participants. For females with heavy infections (≥ 50 eggs/10 ml urine), a gynaecologist performed colposcopy examinations, complemented by acetic acid and Lugol's iodine staining to assess for female genital schistosomiasis (FGS) lesions or other related reproductive health conditions. Socio-demographic data, including information on potential risk factors, were systematically collected using the Kobo ToolBox software, following gender-sensitive data collection guidelines. Data were analysed using SPSS version 25, incorporating descriptive statistics, multinomial logistic regression, odds ratios, and significance testing. RESULTS: Among the 470 adolescents (52.8% females, 47.2% males) examined, an overall UgS prevalence of 14.5% was observed, with an average of 5.25 eggs per 10 ml of urine. Females had a slightly higher prevalence (16.1%), and 7.5% had heavy infections. Although gender differences in infection rates were not statistically significant, males had slightly higher odds of infection (OR: 1.332; 95% CI: 0.791-2.244; p-value: 0.280). Adolescents aged 10-14 had the highest prevalence, with significantly increased odds of infection (OR: 1.720; 95% CI: 1.012-2.923; p-value: 0.045). Colposcopy examinations of females with heavy infections revealed FGS lesions and co-infections with Trichomonas vaginalis. Haematuria, though prevalent (24.6%), was not the sole indicator, as those without it faced significantly higher odds of infection (OR: 2.924; 95% CI: 1.731-4.941; p-value: 0.000). Dysuria and genital itching/burning sensation were other UgS and FGS associated symptoms. Direct water contact was associated with higher infection odds (OR: 2.601; 95% CI: 1.007-6.716; p-value: 0.048). Various risk factors were associated with UgS. CONCLUSION: The study highlights the need for a comprehensive Urogenital Schistosomiasis (UGS) control strategy that includes secondary school adolescents, emphasizes risk factor management, promotes safe water practices, and raises awareness about UGS and Female Genital Schistosomiasis (FGS) among adolescents, thus improving control efforts and mitigating this health challenge in the region.


Asunto(s)
Esquistosomiasis Urinaria , Masculino , Niño , Humanos , Femenino , Adolescente , Preescolar , Adulto Joven , Adulto , Animales , Esquistosomiasis Urinaria/diagnóstico , Esquistosomiasis Urinaria/epidemiología , Estudios Transversales , Hematuria/epidemiología , Nigeria/epidemiología , Genitales Femeninos , Prevalencia , Agua , Schistosoma haematobium
9.
Paediatr Anaesth ; 34(8): 720-733, 2024 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-38676354

RESUMEN

BACKGROUND: Age-related differences in the pharmacokinetics and pharmacodynamics of neuromuscular blocking agents (NMBAs) and the short duration of many surgical procedures put pediatric patients at risk of postoperative residual curarization (PORC). To date, the duration of neuromuscular blocking agent effect in children has not been analyzed in a quantitative review. The current meta-analysis aimed to compare spontaneous recovery following administration of various types and doses of neuromuscular blocking agents and to quantify the effect of prognostic variables associated with the recovery time in pediatric patients. METHOD: We searched for randomized controlled trials (RCTs) and controlled clinical trials (CCTs) that compared the time to 25% T1 (t25), from 25% to 75% T1 (RI25-75), and to ≥90% train-of-four (tTOF90) neuromuscular recovery between common neuromuscular blocking agent treatments administered as a single bolus to healthy pediatric participants. We compared spontaneous t25, RI25-75, and tTOF90 between (1) neuromuscular blocking agent treatments and (2) age groups receiving a given neuromuscular blocking agent intervention and anesthesia technique. Bayesian random-effects network and pairwise meta-analyses along with meta-regression were used to evaluate the results. RESULTS: We used data from 71 randomized controlled trials/controlled clinical trials including 4319 participants. Network meta-analysis allowed for the juxtaposition and ranking of spontaneous t25, RI25-75, and tTOF90 following common neuromuscular blocking agent interventions. For all neuromuscular blocking agents a log-linear relationship between dose and duration of action was found. With the neuromuscular blocking agent treatments studied, the average tTOF90 (mean[CrI95]) in children (>2-11 y) was 41.96 [14.35, 69.50] and 17.06 [5.99, 28.30] min shorter than in neonates (<28 d) and infants (28 d-12 M), respectively. We found a negative log-linear correlation between age and duration of neuromuscular blocking agent effect. The difference in the tTOF90 (mean[CrI95]) between children and other age groups increased by 21.66 [8.82, 34.53] min with the use of aminosteroid neuromuscular blocking agents and by 24.73 [7.92, 41.43] min with the addition of sevoflurane/isoflurane for anesthesia maintenance. CONCLUSIONS: The times to neuromuscular recovery are highly variable. These can decrease significantly with age and are prolonged when volatile anesthetics are administered. This variability, combined with the short duration of many pediatric surgical procedures, makes quantitative neuromuscular monitoring mandatory even after a single dose of neuromuscular blocking agent.


Asunto(s)
Periodo de Recuperación de la Anestesia , Bloqueo Neuromuscular , Niño , Preescolar , Humanos , Lactante , Metaanálisis en Red , Bloqueo Neuromuscular/métodos , Bloqueantes Neuromusculares/administración & dosificación , Recién Nacido
10.
Proc Natl Acad Sci U S A ; 118(17)2021 04 27.
Artículo en Inglés | MEDLINE | ID: mdl-33888585

RESUMEN

Bell inequalities rest on three fundamental assumptions: realism, locality, and free choice, which lead to nontrivial constraints on correlations in very simple experiments. If we retain realism, then violation of the inequalities implies that at least one of the remaining two assumptions must fail, which can have profound consequences for the causal explanation of the experiment. We investigate the extent to which a given assumption needs to be relaxed for the other to hold at all costs, based on the observation that a violation need not occur on every experimental trial, even when describing correlations violating Bell inequalities. How often this needs to be the case determines the degree of, respectively, locality or free choice in the observed experimental behavior. Despite their disparate character, we show that both assumptions are equally costly. Namely, the resources required to explain the experimental statistics (measured by the frequency of causal interventions of either sort) are exactly the same. Furthermore, we compute such defined measures of locality and free choice for any nonsignaling statistics in a Bell experiment with binary settings, showing that it is directly related to the amount of violation of the so-called Clauser-Horne-Shimony-Holt inequalities. This result is theory independent as it refers directly to the experimental statistics. Additionally, we show how the local fraction results for quantum-mechanical frameworks with infinite number of settings translate into analogous statements for the measure of free choice we introduce. Thus, concerning statistics, causal explanations resorting to either locality or free choice violations are fully interchangeable.

11.
Circulation ; 145(21): 1609-1624, 2022 05 24.
Artículo en Inglés | MEDLINE | ID: mdl-35437032

RESUMEN

BACKGROUND: Arrhythmogenic cardiomyopathy (ACM) is an inherited genetic disorder of desmosomal dysfunction, and PKP2 (plakophilin-2) has been reported to be the most common disease-causing gene when mutation-positive. In the early concealed phase, the ACM heart is at high risk of sudden cardiac death before cardiac remodeling occurs because of mistargeted ion channels and altered Ca2+ handling. However, the results of pathogenic PKP2 variants on myocyte contraction in ACM pathogenesis remain unknown. METHODS: We studied the outcomes of a human truncating variant of PKP2 on myocyte contraction using a novel knock-in mouse model with insertion of thymidine in exon 5 of Pkp2, which mimics a familial case of ACM (PKP2-L404fsX5). We used serial echocardiography, electrocardiography, blood pressure measurements, histology, cardiomyocyte contraction, intracellular calcium measurements, and gene and protein expression studies. RESULTS: Serial echocardiography of Pkp2 heterozygous (Pkp2-Het) mice revealed progressive failure of the right ventricle (RV) in animals older than 3 months. By contrast, left ventricular function remained normal. ECGs of 6-month-old anesthetized Pkp2-Het mice showed normal baseline heart rates and QRS complexes. Cardiac responses to ß-adrenergic agonist isoproterenol (2 mg/kg) plus caffeine (120 mg/kg) were also normal. However, adrenergic stimulation enhanced the susceptibility of Pkp2-Het hearts to tachyarrhythmia and sudden cardiac death. Histological staining showed no significant fibrosis or adipocyte infiltration in the RVs and left ventricles of 6- and 12-month-old Pkp2-Het hearts. Contractility assessment of isolated myocytes demonstrated progressively reduced Pkp2-Het RV cardiomyocyte function consistent with RV failure measured by echocardiography. However, aging Pkp2-Het and control RV myocytes loaded with intracellular Ca2+ indicator Fura-2 showed comparable Ca2+ transients. Western blotting of Pkp2-RV homogenates revealed a 40% decrease in actin, whereas actin immunoprecipitation followed by a 2,4-dinitrophenylhydrazine staining showed doubled oxidation level. This correlated with a 39% increase in troponin-I phosphorylation. In contrast, Pkp2-Het left ventricular myocytes had normal contraction, actin expression and oxidation, and troponin-I phosphorylation. Last, Western blotting of cardiac biopsies revealed that actin expression was 40% decreased in RVs of patients with end-stage ACM. CONCLUSIONS: During the early concealed phase of ACM, reduced actin expression drives loss of RV myocyte contraction, contributing to progressive RV dysfunction.


Asunto(s)
Displasia Ventricular Derecha Arritmogénica , Cardiomiopatías , Actinas , Envejecimiento , Animales , Displasia Ventricular Derecha Arritmogénica/patología , Cardiomiopatías/genética , Muerte Súbita Cardíaca , Modelos Animales de Enfermedad , Humanos , Ratones , Placofilinas/genética , Troponina I
12.
J Cardiovasc Electrophysiol ; 34(8): 1768-1771, 2023 08.
Artículo en Inglés | MEDLINE | ID: mdl-37386876

RESUMEN

INTRODUCTION: A 52-year-old woman presented with a complex ventricular arrhythmia in an intraoperative context, during kyphoplasty for an osteoporotic fracture of a lumbar vertebra. The subject showed no indications of a previous cardiovascular condition. METHODS AND RESULTS: Causes of arrhythmias associated with the procedure were excluded. Due to her positive family history for dilated cardiomyopathy, upcoming thoughts were made for unmasking a previous asymptomatic cardiomyopathy. Nevertheless, an intracardiac cement embolism was diagnosed and, finally, the patient underwent an open-heart surgery with successful removal of the cardiac cement. Νo new arrhythmia recorded during follow up. CONCLUSION: To the best of our knowledge, this is the first reported case of ventricular arrhythmogenic presentation of a cardiac cement embolus after a KP procedure.


Asunto(s)
Cifoplastia , Taquicardia Ventricular , Humanos , Femenino , Persona de Mediana Edad , Arritmias Cardíacas , Corazón , Cifoplastia/métodos , Taquicardia Ventricular/diagnóstico , Taquicardia Ventricular/etiología , Taquicardia Ventricular/cirugía , Cementos para Huesos
13.
Behav Pharmacol ; 34(7): 443-448, 2023 10 01.
Artículo en Inglés | MEDLINE | ID: mdl-37712581

RESUMEN

The Stroop Effect has been linked to social concept priming, suggesting that the latter may trigger automatic behaviour aligned with the primed concept. This study examined the effects of social priming on alcohol attentional bias, with a sample of mostly light drinkers; it used a social priming task and an alcohol-Stroop test to measure participants' response times (RTs) before and after they had been socially primed. Participants were separated into one of three social priming conditions: Neutral, Alcohol Addiction, and Alcohol Preoccupation. A mixed ANOVA was run to determine whether participants' RTs to alcohol-related stimuli, "rather than to neutral sitmuli," slowed significantly after the alcohol interference tasks, relative to the neutral interference task, suggesting an alcohol attentional bias had been induced by the social priming exercise. Key interaction terms did not reveal such an interaction, but rather a general slowing down (for both neutral and alcohol stimuli), in the Alcohol conditions, relative to the Neutral one. As a result, we can conclude that while we did not induce an alcohol-specific bias in participants, we did discover a generalised interference effect, following alcohol-related social priming tasks.


Asunto(s)
Trastornos Relacionados con Alcohol , Alcoholismo , Sesgo Atencional , Humanos , Etanol/farmacología , Actividad Motora
14.
Annu Rev Psychol ; 73: 749-778, 2022 01 04.
Artículo en Inglés | MEDLINE | ID: mdl-34546804

RESUMEN

Uncertainty is an intrinsic part of life; most events, affairs, and questions are uncertain. A key problem in behavioral sciences is how the mind copes with uncertain information. Quantum probability theory offers a set of principles for inference, which align well with intuition about psychological processes in certain cases: cases when it appears that inference is contextual, the mental state changes as a result of previous judgments, or there is interference between different possibilities. We motivate the use of quantum theory in cognition and its key characteristics. For each of these characteristics, we review relevant quantum cognitive models and empirical support. The scope of quantum cognitive models encompasses fallacies in decision-making (such as the conjunction fallacy or the disjunction effect), question order effects, conceptual combination, evidence accumulation, perception, over-/underdistribution effects in memory, and more. Quantum models often formalize psychological ideas previously expressed in heuristic terms, allow unified explanations of previously disparate findings, and have led to several surprising, novel predictions. We also cast a critical eye on quantum models and consider some of their shortcomings and issues regarding their further development.


Asunto(s)
Cognición , Modelos Psicológicos , Toma de Decisiones , Humanos , Juicio , Teoría Cuántica
15.
World J Surg ; 47(12): 3020-3029, 2023 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-37550548

RESUMEN

BACKGROUND: National surgical policies have been increasingly adopted by African countries over the past decade. This report is intended to provide an overview of the current state of adoption of national surgical healthcare policies in Africa, and to draw a variety of lessons from representative surgical plans in order to support transnational learning. METHODS: Through a desk review of available African national surgical healthcare plans and written contributions from a committee comprising six African surgical policy development experts, a few key lessons from five healthcare plans were outlined and iteratively reviewed. RESULTS: The current state of national surgical healthcare policies across Africa was visually mapped, and lessons from a few compelling examples are highlighted. These include the power of initiative from Senegal; regional leadership from Zambia; contextualization, and renewal of commitment from Ethiopia; multidisciplinary focus and creation of multiple implementation entry points from Nigeria; partnerships and involvement of multiple stakeholders from Rwanda; and the challenge of surgical policy financing from Tanzania. The availability of global expertise, the power of global partnerships, and the critical role of health ministries and Ministers of Health in planning and implementation have also been highlighted. CONCLUSIONS: Strategic planning for surgical healthcare improvement is at various stages across the continent, with potential for countries to learn from one another. Convenings of stakeholders and Ministers of Health from countries at various stages of strategic surgical plan development, execution, and evaluation can enhance African surgical policy development through the exchange of ideas, lessons, and experiences.


Asunto(s)
Política de Salud , Formulación de Políticas , Humanos , Rwanda , Tanzanía , Atención a la Salud
16.
Am J Respir Crit Care Med ; 206(9): 1107-1116, 2022 11 01.
Artículo en Inglés | MEDLINE | ID: mdl-35763381

RESUMEN

Rationale: Directly comparative data on sepsis epidemiology and sepsis bundle implementation in countries of differing national wealth remain sparse. Objectives: To evaluate across countries/regions of differing income status in Asia 1) the prevalence, causes, and outcomes of sepsis as a reason for ICU admission and 2) sepsis bundle (antibiotic administration, blood culture, and lactate measurement) compliance and its association with hospital mortality. Methods: A prospective point prevalence study was conducted among 386 adult ICUs from 22 Asian countries/regions. Adult ICU participants admitted for sepsis on four separate days (representing the seasons of 2019) were recruited. Measurements and Main Results: The overall prevalence of sepsis in ICUs was 22.4% (20.9%, 24.5%, and 21.3% in low-income countries/regions [LICs]/lower middle-income countries/regions [LMICs], upper middle-income countries/regions, and high-income countries/regions [HICs], respectively; P < 0.001). Patients were younger and had lower severity of illness in LICs/LMICs. Hospital mortality was 32.6% and marginally significantly higher in LICs/LMICs than HICs on multivariable generalized mixed model analysis (adjusted odds ratio, 1.84; 95% confidence interval, 1.00-3.37; P = 0.049). Sepsis bundle compliance was 21.5% at 1 hour (26.0%, 22.1%, and 16.2% in LICs/LMICs, upper middle-income countries/regions, and HICs, respectively; P < 0.001) and 36.6% at 3 hours (39.3%, 32.8%, and 38.5%, respectively; P = 0.001). Delaying antibiotic administration beyond 3 hours was the only element independently associated with increased mortality (adjusted odds ratio, 2.53; 95% confidence interval, 2.07-3.08; P < 0.001). Conclusions: Sepsis is a common cause of admission to Asian ICUs. Mortality remains high and is higher in LICs/LMICs after controlling for confounders. Sepsis bundle compliance remains low. Delaying antibiotic administration beyond 3 hours from diagnosis is associated with increased mortality. Clinical trial registered with www.ctri.nic.in (CTRI/2019/01/016898).


Asunto(s)
Unidades de Cuidados Intensivos , Sepsis , Adulto , Humanos , Estudios Prospectivos , Mortalidad Hospitalaria , Asia , Antibacterianos
17.
Psychol Health Med ; 28(8): 2389-2406, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-36334093

RESUMEN

The objective of this experiment was to offer a preliminary exploration into the key factors underlying trust in healthcare systems around the world, in light of the COVID-19 global pandemic. Participants were recruited across ten countries and were asked to complete a two-part questionnaire, in which they rated their country's healthcare system on a scale from 1-5, according to ten trust-related factors, translated specifically to pertain to healthcare, and 4 key pillars of trust: benevolence, reliability, competence and predictability. Correlation analyses between these two separate measures revealed that honesty, consistency, and reasonableness were the most impactful factors underlying trust across the entire population. All other findings are detailed in the main text. This study allowed us to arrive at a preliminary determination of the most impactful factors underlying trust, both at a global and national level.

18.
Int J Mol Sci ; 25(1)2023 Dec 29.
Artículo en Inglés | MEDLINE | ID: mdl-38203659

RESUMEN

Xanthan gum (XG) is a carbohydrate polymer with anionic properties that is widely used as a rheology modifier in various applications, including foods and petroleum extraction. The aim was to investigate the effect of Na+, K+, and Ca2+ on the physicochemical properties of XG in an aqueous solution as a function of temperature. Huggins, Kraemer, and Rao models were applied to determine intrinsic viscosity, [η], by fitting the relative viscosity (ηrel) or specific viscosity (ηsp) of XG/water and XG/salt/water solutions. With increasing temperature in water, Rao 1 gave [η] the closest to the Huggins and Kraemer values. In water, [η] was more sensitive to temperature increase (~30% increase in [η], 20-50 °C) compared to salt solutions (~15-25% increase). At a constant temperature, salt counterions screened the XG side-chain-charged groups and decreased [η] by up to 60% over 0.05-100 mM salt. Overall, Ca2+ was much more effective than the monovalent cations in screening charge. As the salt valency and concentration increased, the XG coil radius decreased, making evident the effect of shielding the intramolecular and intermolecular XG anionic charge. The reduction in repulsive forces caused XG structural contraction. Further, higher temperatures led to chain expansion that facilitated increased intermolecular interactions, which worked against the salt effect.


Asunto(s)
Polisacáridos Bacterianos , Cloruro de Sodio Dietético , Temperatura , Cloruro de Sodio , Agua
19.
J Cancer Educ ; 38(1): 370-377, 2023 02.
Artículo en Inglés | MEDLINE | ID: mdl-35083731

RESUMEN

A lack of diversity in the clinical cancer workforce causes undue burden limiting research and patient care advancements. Recruitment and retention of individuals underrepresented in medicine/research can enhance patient-provider concordance. The Student-centered Pipeline to Advance Research in Cancer Careers (SPARCC) uniquely prepares underrepresented minority students to quickly transition into the clinical research workforce and seek advanced graduate degrees. Experiential learning theory and culturally responsive pedagogy ground SPARCC's rigorous competency-based curriculum incorporating cancer care, clinical trial development, social supports, and mentored research experiences. Concurrent mixed-methods analysis includes evaluations of workshops, clinical-practicums, and pre-, post-, and 6-month-post-knowledge, attitudes, and practices. Analysis of data included stepwise multivariate regression analysis, Spearman's rho correlations, and assessments of inter-item reliability via Cronbach's alpha (IBM® SPSS® 24.0). Inductive content analysis coded phrases and analytic patterns were distilled enhancing descriptions of experiences. From January 2019 to March 2019, 62% of applications came from underrepresented minorities. Ten students were accepted, 90% identified as underrepresented minority. All ten students completed the pre-, post-, and 6-month-post-evaluations. Overall scores increased significantly from pre-evaluation to 6-month-post-evaluation. Evaluation data came from 431 responses of 60 workshops, with a mean score of 9.1 (10-point scale). Students completed three clinical practicums, which received an overall mean score of 8.2 (10-point scale). A robust curriculum, structured recruitment, diverse faculty, and comprehensive evaluations made SPARCC a compelling strategy for supporting underrepresented minority students to seek immediate employment as clinical research professionals or application to advanced graduate degree programs.


Asunto(s)
Investigación Biomédica , Neoplasias , Humanos , Reproducibilidad de los Resultados , Estudiantes , Recursos Humanos , Grupos Minoritarios/educación , Investigación Biomédica/educación , Neoplasias/terapia
20.
Entropy (Basel) ; 25(4)2023 Mar 23.
Artículo en Inglés | MEDLINE | ID: mdl-37190336

RESUMEN

This paper demonstrates that some non-classical models of human decision-making can be run successfully as circuits on quantum computers. Since the 1960s, many observed cognitive behaviors have been shown to violate rules based on classical probability and set theory. For example, the order in which questions are posed in a survey affects whether participants answer 'yes' or 'no', so the population that answers 'yes' to both questions cannot be modeled as the intersection of two fixed sets. It can, however, be modeled as a sequence of projections carried out in different orders. This and other examples have been described successfully using quantum probability, which relies on comparing angles between subspaces rather than volumes between subsets. Now in the early 2020s, quantum computers have reached the point where some of these quantum cognitive models can be implemented and investigated on quantum hardware, by representing the mental states in qubit registers, and the cognitive operations and decisions using different gates and measurements. This paper develops such quantum circuit representations for quantum cognitive models, focusing particularly on modeling order effects and decision-making under uncertainty. The claim is not that the human brain uses qubits and quantum circuits explicitly (just like the use of Boolean set theory does not require the brain to be using classical bits), but that the mathematics shared between quantum cognition and quantum computing motivates the exploration of quantum computers for cognition modeling. Key quantum properties include superposition, entanglement, and collapse, as these mathematical elements provide a common language between cognitive models, quantum hardware, and circuit implementations.

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