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OBJECTIVE: To describe intake requirements among autism clinics and to assess how well intake paperwork aligns with national standards for enhancing language and literacy accessibility. METHODS: This was a survey of 126 autism clinics in the Children's Hospital Association, assessing intake processes and intake paperwork readability conducted between November 2021 and August 2022. Descriptive analyses characterized intake requirements and paperwork components. Free-text responses about intake support strategies were categorized into themes. Logistic regression models examined associations between clinic patient demographics and odds of requiring intake paperwork. Intake packet length, content, and reading grade level were examined. RESULTS: Of the invited clinics, 73% completed the survey. Among the participating clinics, 55% required intake paperwork before scheduling appointments, 34% offered English forms only, and 89% had no plain language forms. Clinic patient demographics were not associated with intake paperwork requirements. Analyzed intake packets (n = 67) averaged 11 pages long, and most were written above the fifth-grade reading level. Most packets solicited medical, developmental, and educational/therapy history. Many also requested psychoeducational evaluations and teacher rating forms. Reported intake support strategies for families with language or literacy needs included making ad hoc exceptions to the usual process, task shifting to outside organizations, providing support at family's request, and delegating to support staff. CONCLUSION: Many autism clinics nationwide require intake paperwork before diagnostic evaluation. Many clinics offer intake paperwork in English only, and paperwork often does not meet health literacy standards. Reducing paperwork requirements and providing more routine and robust intake support may facilitate equitable access to autism diagnostic evaluations.
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AIM: We sought to explore the experiences and perceptions of the quality of life of adolescents with pediatric-onset multiple sclerosis and assess their readiness for academic, employment and/or health care-related transitions. BACKGROUND: Adolescents with pediatric-onset multiple sclerosis face unique challenges in managing a chronic illness while navigating future scholastic, social and occupational goals. We conducted a qualitative study with in-depth, semi-structured interviews from July 2017 to March 2019. Adolescents with pediatric-onset multiple sclerosis were recruited from a pediatric neurology subspeciality practice until reaching data saturation. A total of 17 interviews were completed via telephone with participants ages 15 through 26. RESULTS: Through content analysis of the interviews, we identified five major themes: (1) receiving a new diagnosis; (2) adapting to life with pediatric-onset multiple sclerosis; (3) evaluating education/career transition preparedness; (4) adjusting within family life and establishing support systems; and (5) assessing current medical services and preparedness for adult medical care. CONCLUSIONS: Autonomy in health care management, adequate control of physical symptoms and sufficient family support impacted perceptions of quality of life. Implementing a dedicated transition visit, including the parent(s) of those with pediatric-onset multiple sclerosis, early in adolescence may provide an avenue for appropriate anticipatory guidance regarding available services, independent medical management and continuity of care.
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Sclérose en plaques , Recherche qualitative , Qualité de vie , Transition aux soins pour adultes , Humains , Adolescent , Sclérose en plaques/psychologie , Sclérose en plaques/thérapie , Femelle , Mâle , Jeune adulte , Adulte , Adaptation psychologique , Entretiens comme sujetRÉSUMÉ
Estimating the pose of a large set of fixed indoor cameras is a requirement for certain applications in augmented reality, autonomous navigation, video surveillance, and logistics. However, accurately mapping the positions of these cameras remains an unsolved problem. While providing partial solutions, existing alternatives are limited by their dependence on distinct environmental features, the requirement for large overlapping camera views, and specific conditions. This paper introduces a novel approach to estimating the pose of a large set of cameras using a small subset of fiducial markers printed on regular pieces of paper. By placing the markers in areas visible to multiple cameras, we can obtain an initial estimation of the pair-wise spatial relationship between them. The markers can be moved throughout the environment to obtain the relationship between all cameras, thus creating a graph connecting all cameras. In the final step, our method performs a full optimization, minimizing the reprojection errors of the observed markers and enforcing physical constraints, such as camera and marker coplanarity and control points. We validated our approach using novel artificial and real datasets with varying levels of complexity. Our experiments demonstrated superior performance over existing state-of-the-art techniques and increased effectiveness in real-world applications. Accompanying this paper, we provide the research community with access to our code, tutorials, and an application framework to support the deployment of our methodology.
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OBJECTIVE: The American Academy of Pediatrics endorses a paradigm shift toward promoting early relational health (ERH) in pediatrics. Pediatric clinicians have a unique opportunity to promote ERH, yet little work has sought parents' perspectives on how clinicians can do so effectively. We sought to understand diverse parents' perspectives on ERH and the role of pediatric clinicians in supporting it. METHODS: We conducted virtual focus groups using a guide prepared with input from community partners and parent advisors. We purposively sampled a diverse group of parents of children aged ≤7 years. Focus groups were recorded and transcribed verbatim. We analyzed data as it was collected and identified themes using an inductive and iterative process. RESULTS: Thirty-seven parents participated in 8 focus groups (median parent age: 36.0 years; 43.2% Asian, 18.9% Black/African-American; 32.4% Hispanic/Latino; 78.4% mothers). We identified 3 organizing themes: (1) Time, attention, and open communication with children lay a foundation for ERH; (2) Pediatric clinicians have an opportunity to promote ERH, but disconnected parent-clinician relationships are a major barrier; and (3) Enhanced communication and careful attention to child development and family well-being represent key opportunities to strengthen parent-clinician relationships. CONCLUSION: Parents identified time, attention, and open communication as essential to ERH. Although participants expressed openness to clinicians addressing ERH, such work is contingent on strong parent-clinician relationships. Policymakers and clinicians seeking to address ERH in pediatric settings must also be prepared to address potential barriers through strategies like providing adequate time to facilitate relationship-building and careful attention to address this critical topic.
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Groupes de discussion , Parents , Recherche qualitative , Humains , Parents/psychologie , Adulte , Femelle , Mâle , Enfant d'âge préscolaire , Relations famille-professionnel de santé , Enfant , Nourrisson , Relations parent-enfant , Pédiatrie , Pédiatres , Adulte d'âge moyenRÉSUMÉ
Conservative treatments for plantar fasciitis have different levels of effectiveness, so it is necessary to personalize the therapeutic modality that improves the patients' symptoms. METHODS: A double-blinded randomized clinical trial was designed to evaluate the short-term efficacy of a physical treatment in chronic plantar fasciitis, namely iontophoresis, compared with radial shockwave therapy. Heel pain, health status using the EuroQol-5D questionnaire, and fascia thickness measured with ultrasound were evaluated. In total, 127 patients were randomly selected for group A and treated with iontophoresis therapy (lidocaine 0.4% and dexamethasone 0.5%), or for group B, in which they were treated with radial shockwave therapy (EWST). Measurements were taken at baseline and at follow-up during the 5 weeks of the study. RESULTS: Statistically significant differences were observed to the shockwave therapy group in respect to the final fascia thickness, and the VAS scale (p = 0.001). The differences between groups A and B showed that the shockwave group follow-up after 3 weeks experienced complete pain remission (1.0 ± 0.9; 95%CI 0.8-1.2) and after the 6-week follow-up, complete pain remission of plantar fasciitis was observed for both therapies. Patients had a better perception of the use of EWST at the end of the treatment, although in both groups it was satisfactory (p = 0.001). CONCLUSIONS: The results of this study showed a shorter-term effectiveness of shockwave treatment compared with the use of iontophoresis. However, both techniques were effective in satisfactorily reducing pain in this short period.
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BACKGROUND: The hallux dorsiflexion resistance test is a frequently employed clinical maneuver for assessing the initiation of the windlass mechanism This maneuver involves dorsiflexion of the phalanx of the hallux, thereby evaluating plantarflexion of the first metatarsal, elevation of the medial longitudinal arch, and supination of the rearfoot. The windlass mechanism plays a crucial role in gait, and orthopedic devices, such as a kinetic wedge, which aims to facilitate its activation by increasing the hallux dorsiflexion. Although it is believed that facilitating the windlass mechanism with the kinetic wedge should be directly correlated with a decrease in hallux dorsiflexion resistance, its effects have yet to be characterized. Thus, this study aimed to determine the influence of a kinetic wedge on hallux dorsiflexion resistance in asymptomatic individuals. METHODS: The sample comprised thirty participants (14 women and 16 men). A digital force gauge measured the force required to perform the hallux dorsiflexion resistance test during two conditions: barefoot and with a kinetic wedge. The Wilcoxon signed-rank test was used to compare the hallux dorsiflexion resistance between conditions. RESULTS: A statistically significant reduction in force (10.54 ± 3.16N vs. 19.62 ± 5.18N, p < 0.001) was observed when using the kinetic wedge compared to the barefoot condition during the hallux dorsiflexion resistance test. CONCLUSION: The use of a kinetic wedge reduces the required force for performing the passive hallux dorsiflexion resistance test in asymptomatic individuals. Future studies should determine to what extent the kinetic wedge can attenuate the required force to dorsiflex the hallux in individuals with musculoskeletal disorders such as plantar fasciopathy and functional hallux limitus.
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Hallux , Humains , Femelle , Mâle , Adulte , Hallux/physiologie , Jeune adulte , Phénomènes biomécaniques/physiologie , Démarche/physiologie , Amplitude articulaire/physiologieRÉSUMÉ
BACKGROUND: In the literature, there is no consensus regarding the surgical management of postaxial polydactyly, and few cases of polymetatarsia with polydactyly have been reported. Treatment of the complete deformity will prevent further foot and gait disorders. OBJECTIVE: To identify literature relevant to the operative management of Y-shaped metatarsal with biphalangeal sixth toe and related skin and wound care to improve surgical treatment protocols from a clinical experience perspective. DATA SOURCES: The authors searched several electronic databases in December 2022 for articles related to postaxial polysyndactyly in the feet and polymetatarsia. Databases searched included PubMed, SciELO, ScienceDirect, Cochrane Database of Systematic Reviews, and Google Scholar gray literature. STUDY SELECTION: Two independent researchers conducted the searches and read the article titles and abstracts. Studies were included if they were narrative reviews, case studies, or observational studies; written in English or Spanish; and published between 2012 and 2022. Nonhuman studies were excluded. Studies that met the inclusion criteria were fully evaluated. Disagreements between reviewers were resolved by consensus, and when there was no consensus, a senior researcher was consulted. DATA EXTRACTION: The following data were extracted from the included studies using a standardized form: author and year of publication, study type, number of participants, sex, polydactyly location, polymetatarsia, type of polydactyly, participants' history of hereditary associated diseases or malformations, treatment, removal criteria, and timing of surgery. DATA SYNTHESIS: Authors evaluated 11 studies of postaxial polydactyly that included a total of 153 participants (64 men, 89 women). They also document their clinical experience with a surgical technique used in cases of bilateral postaxial polydactyly of the foot with a Y-shaped metatarsal with biphalangeal sixth toe. CONCLUSIONS: Surgical correction with lateral removal of the sixth toe is a resolutive treatment to improve the functionality of the foot, its aesthetic appearance, and the patient's quality of life. Case-specific treatment should be applied and tailored to meet the individual needs. The biomechanics of gait and shoe problems in these patients improve with surgical treatment, without presenting secondary aesthetic problems in skin care.
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Os du métatarse , Polydactylie , Humains , Os du métatarse/malformations , Os du métatarse/chirurgie , Polydactylie/chirurgie , Orteils/malformations , Orteils/chirurgie , Femelle , Mâle , Doigts/malformationsRÉSUMÉ
PURPOSE OF REVIEW: Familial Hypercholesterolemia is associated with an increased risk of cardiovascular disease. The current international guidelines of the main scientific societies consider that all people with familial hypercholesterolemia have a high or very high cardiovascular risk. However, the occurrence of atherosclerotic cardiovascular disease is very heterogeneous in this population. Stratifying risk within people with familial hypercholesterolemia is essential to identify individuals who require intensive cholesterol-lowering therapies. RECENT FINDINGS: In the last year, several studies have been published focusing on the contribution of diabetes to familial hypercholesterolemia, the role of stroke, as a manifestation of atherosclerotic disease, and the external validation of the SAFEHEART risk equation in the English population diagnosed with Familial Hypercholesterolemia. SUMMARY: It is necessary the development of a tool that allows us to identify, in a simple, reproducible, and universal way, patients who may have a high risk of suffering a cardiovascular event and who are susceptible to more intensive treatments to reduce cholesterol levels.
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OBJECTIVE: To investigate associations between postpartum depression in fathers and children's behaviors at age 5 in a national high-risk U.S. sample. STUDY DESIGN: A secondary data analysis of 1,796 children in a national birth cohort study that oversampled non-marital births was conducted. Paternal depression was assessed 1 year after the child was born and children's behaviors were assessed by their primary caregivers when the children were 5 years old. Unadjusted and adjusted negative binomial regression models of associations between paternal depression and child behavior scores and logistic regression models of associations between paternal depression and high scores (at least 1.5 or 2.0 standard deviations above the mean) were estimated. RESULTS: In negative binomial regression models that adjusted for child, paternal, and family characteristics and maternal depression, paternal depression was associated with a 17% higher total externalizing behavior score (Incidence Rate Ratio (IRR): 1.17; 95% Confidence Interval (CI): 1.07-1.27), a 17% higher aggressive subscale score (IRR: 1.17; 95% CI: 1.08-1.27), and an 18% higher delinquent subscale score (IRR: 1.18; 95% CI: 1.03-1.35). In adjusted logistic regression models for scores ≥2.0 standard deviations above the mean, paternal depression was associated with high total externalizing scores (e.g., Odds Ratio (OR): 3.09; 95% CI: 1.77-5.41), high aggressive behavior scores (OR: 2.40; 95% CI: 1.30-4.43), and high delinquent behavior scores (OR: 2.08; 95% CI: 1.01-4.27). There were suggestive but non-robust associations between paternal depression and attention problems and no associations between paternal depression and internalizing behaviors or social problems. CONCLUSION: Fathers' depression at age 1 was associated with children's externalizing behaviors at age 5, an important developmental stage when children transition to school. These findings suggest a need to identify and support fathers with depressive symptoms to promote optimal child development.
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Dépression du postpartum , Dépression , Mâle , Enfant , Femelle , Humains , Enfant d'âge préscolaire , Nourrisson , Dépression/épidémiologie , Dépression/diagnostic , Études de cohortes , Cohorte de naissance , Mères , Pères , Dépression du postpartum/épidémiologie , Période du postpartumRÉSUMÉ
Phase-encoded oscillating neural networks offer compelling advantages over metal-oxide-semiconductor-based technology for tackling complex optimization problems, with promising potential for ultralow power consumption and exceptionally rapid computational performance. In this work, we investigate the ability of these networks to solve optimization problems belonging to the nondeterministic polynomial time complexity class using nanoscale vanadium-dioxide-based oscillators integrated onto a Silicon platform. Specifically, we demonstrate how the dynamic behavior of coupled vanadium dioxide devices can effectively solve combinatorial optimization problems, including Graph Coloring, Max-cut, and Max-3SAT problems. The electrical mappings of these problems are derived from the equivalent Ising Hamiltonian formulation to design circuits with up to nine crossbar vanadium dioxide oscillators. Using sub-harmonic injection locking techniques, we binarize the solution space provided by the oscillators and demonstrate that graphs with high connection density (η > 0.4) converge more easily towards the optimal solution due to the small spectral radius of the problem's equivalent adjacency matrix. Our findings indicate that these systems achieve stability within 25 oscillation cycles and exhibit power efficiency and potential for scaling that surpasses available commercial options and other technologies under study. These results pave the way for accelerated parallel computing enabled by large-scale networks of interconnected oscillators.
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The proper dorsal flexion movement of the first metatarsophalangeal joint (MTPJ) is crucial for an accurate gait. Restricted movement can disrupt the windlass mechanism, and Jack's test is a tool to assess such alterations. Although running socks are commonly used, their influence on the windlass mechanism remains unclear. Therefore, the aim of this study was to measure the resistance to passive dorsal flexion of the first metatarsophalangeal joint (MTPJ) under three different conditions: barefoot, wearing regular socks, and wearing biomechanical socks, using a digital force gauge. METHODS: The research involved a sample size of 30 subjects (14 men and 16 women), and Jack's test was conducted using a digital force gauge and a lever system. Three conditions were measured, barefoot, with a regular sock, and with the biomechanical socks. RESULTS: Statistically significant differences were observed when using biomechanical socks with orthopedic corrections during Jack's test, as measured with the digital force gauge (13.33 N ± 3.54, p < 0.001). CONCLUSIONS: The utilization of biomechanical socks with a kinetic wedge, reinforced mesh in the medial longitudinal arch, and padding in the heel area results in a reduction of the force required, measured in newtons, to perform dorsal flexion of the first metatarsophalangeal joint (MTPJ) during Jack's test compared to being barefoot or wearing regular socks.
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This study investigated associations between chronic developmental/behavioral and physical health conditions and social connectedness of adolescents using rich population-based data from a national U.S. birth cohort study. Potentially disabling health conditions were reported by caregivers and categorized by our team as developmental/behavioral or physical. Social connectedness was assessed using a validated scale that measured adolescents' reports of positive social connectedness across relevant contexts (family, friends, school). Of the 3,207 adolescents included, over one third had at least one chronic health condition. Unadjusted and adjusted linear and logistic regression models of associations between the presence of chronic health conditions (any developmental/behavioral health condition and any physical health condition, compared to no conditions) and adolescents' social connectedness outcomes were estimated. Compared to those with no chronic health conditions, adolescents with developmental/behavioral health conditions had lower odds of high positive social connectedness scores (adjusted odds ratio [AOR]: 0.80; CI [0.67, 0.94]), having friends they really care about (AOR: 0.76; CI [0.61, 0.94]), having people who care (AOR: 0.65; CI [0.50, 0.84]), and having people with whom to share good news (AOR: 0.77; CI [0.63, 0.94]). Adolescents with chronic physical health conditions had lower odds of reporting having people who care about them (AOR: 0.72; CI [0.55, 0.94]). The findings point to the need for interventions designed to foster the development of positive interpersonal relationships, reduce loneliness, and increase positive social identity among adolescents with chronic health conditions, particularly those with developmental/behavioral health conditions. (PsycInfo Database Record (c) 2024 APA, all rights reserved).
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Relations interpersonnelles , Humains , Adolescent , Femelle , Mâle , Maladie chronique , États-Unis , Amis/psychologie , Études de cohortes , Soutien socialRÉSUMÉ
Environmental changes are affecting human health. A renewal of the way we understand and relate to the planet is needed. Ecospirituality brings together the terms spirituality and environment and is born as a means of solution to this dilemma. This systematic review aimed to find out the influence of ecospirituality on global health. A search of scientific literature was carried out in the main health science databases. A review was conducted to critically evaluate the studies that identified relevant ecospiritual aspects regarding health care for communities. After a systematic search and screening, and following specified methodological criteria, a total of 14 articles were selected in the review. The findings of the review suggest that a new perspective in our worldview such as ecospirituality will provide us with the necessary keys to improve health. To understand ecospirituality, we must keep in mind the indigenous way of life, which is the clear example to follow to achieve environmental health and global health. Ecospirituality leads to a healthier environment, and as this is directly related to health, there is also an improvement in global health.
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Santé mondiale , Humains , Santé environnementaleRÉSUMÉ
BACKGROUND: Older adults, as the population considered at increased risk for severe COVID-19, were the most impacted by social isolation. Thus, this study aimed to assess the salivary immune/inflammatory response of older adults before and during the COVID-19 pandemic. METHODS: A cohort of 11 older adults (mean age 66.8 ± 6.1) was followed at three different time points: before (S1) and after 6 (S2) and 20 months (S3) of the beginning of the COVID-19 pandemic in Brazil. Unstimulated saliva samples were obtained to assess the levels of antibodies (secretory IgA, IgG and IgM) by ELISA and cytokines (IL-2, IL-5, IL-6, IL-8 and IL-10, TSLP, IFN-γ, TNF-α) by multiplex analysis. Significant differences were evaluated using the Kruskal-Wallis test with Dunn's post-test. RESULTS: None volunteer presented periodontal disease or caries. All volunteers received at least two doses of the COVID-19 vaccines after S2 and before S3. A tendency to increase salivary levels of SIgA and IgM at S2 and of IgG at S3 were observed compared to the values found at S1 and S2. Significantly decreased levels of IL-2 and IL-5 were found at S2 and S3 (p < 0.001) time points. Lower levels of IFN-γ were found at S2 as compared to the values observed at S1 (p < 0.01). A significant decrease in the IFN-γ/IL-10 ratio was found at S2 (p < 0.01). When assessing the Th1/Th2 ratios, a significant decrease was found in the IFN-γ/TSLP ratio at S2 (p < 0.001) and S3 (p < 0.001) when compared to the values at S1. In addition, a significant increase was observed in the TNF-α/IL-5 ratio at S2 (p < 0.001) and S3 (p < 0.001) in comparison to the values at S1. In a similar way, an increase in the TNF-α/IL-6 ratio (Fig. 5E) was observed at S3 (p < 0.001) when compared to the values at S1. CONCLUSIONS: Overall, this study provides valuable insights into the impact of COVID-19-induced social isolation on immune/inflammatory responses in the upper airway mucosa, particularly those present in oral cavity, of older adults. It demonstrates that a controlled shift in Th1 and Th2 immune responses, both during infection and post-vaccination, can create favorable conditions to combat viral infections without exacerbating the immune response or worsening the pathology.
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COVID-19 , Humains , Sujet âgé , Interleukine-10 , Facteur de nécrose tumorale alpha , Interleukine-6 , Vaccins contre la COVID-19 , Pandémies , Distanciation physique , Interleukine-2 , Interleukine-5 , Immunoglobuline G , Immunoglobuline MRÉSUMÉ
OBJECTIVE: The COVID-19 pandemic disproportionately harmed Latino families; however, its effects on their stress and media routines remain understudied. We examined economic and parenting stress patterns during the COVID-19 pandemic and estimated associations between these forms of stress and nonadherence to American Academy of Pediatrics (AAP) infant media exposure recommendations among Latino families. We also explored how nonadherence with AAP recommendations varied with COVID-19 cases. METHODS: We analyzed baseline data from an ongoing clinical trial recruiting low-income Latino parent-infant dyads. Nonadherence with AAP media exposure recommendations (ScreenQ) and economic and parent stress were measured using parent reports. Additional variables included epidemiological data on COVID-19 cases. Linear models examined associations between the pandemic and both stress variables as well as between stress and ScreenQ. Using locally weighted scatterplot smoothing curve fitting, the rise and fall of NJ COVID-19 cases were overlayed with ScreenQ scores over time to visualize and explore trends. RESULTS: All parents identified as Latino (62.6% unemployed, 91.5% limited English proficiency). Mean infant age was 8.2 months. Parent stress increased over time during the COVID-19 pandemic (r = 0.13, p = 0.0369). After covariate adjustment, economic and parent stress were associated with increased nonadherence with AAP recommendations (standardized beta = 0.16, 95% confidence interval [CI], 0.03-0.29; standardized beta = 0.18, 95% CI, 0.04-0.31, respectively). Nonadherence to media exposure recommendations seemed to track with rises in the number of COVID-19 cases with a lag of 7 days. CONCLUSION: Parent and economic stress were associated with nonadherence to infant media exposure recommendations among Latino families. These findings highlight the need for practitioners to support families from under-resourced communities and to promote healthy media routines.
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COVID-19 , , Stress psychologique , Humains , Nourrisson , COVID-19/épidémiologie , Hispanique ou Latino , Pandémies , Pauvreté , États-UnisRÉSUMÉ
Camera pose estimation is vital in fields like robotics, medical imaging, and augmented reality. Fiducial markers, specifically ArUco and Apriltag, are preferred for their efficiency. However, their accuracy and viewing angle are limited when used as single markers. Custom fiducial objects have been developed to address these limitations by attaching markers to 3D objects, enhancing visibility from multiple viewpoints and improving precision. Existing methods mainly use square markers on non-square object faces, leading to inefficient space use. This paper introduces a novel approach for creating fiducial objects with custom-shaped markers that optimize face coverage, enhancing space utilization and marker detectability at greater distances. Furthermore, we present a technique for the precise configuration estimation of these objects using multiviewpoint images. We provide the research community with our code, tutorials, and an application to facilitate the building and calibration of these objects. Our empirical analysis assesses the effectiveness of various fiducial objects for pose estimation across different conditions, such as noise levels, blur, and scale variations. The results suggest that our customized markers significantly outperform traditional square markers, marking a positive advancement in fiducial marker-based pose estimation methods.
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Oscillatory neural networks (ONNs) exhibit a high potential for energy-efficient computing. In ONNs, neurons are implemented with oscillators and synapses with resistive and/or capacitive coupling between pairs of oscillators. Computing is carried out on the basis of the rich, complex, non-linear synchronization dynamics of a system of coupled oscillators. The exploited synchronization phenomena in ONNs are an example of fully parallel collective computing. A fast system's convergence to stable states, which correspond to the desired processed information, enables an energy-efficient solution if small area and low-power oscillators are used, specifically when they are built on the basis of the hysteresis exhibited by phase-transition materials such as VO2. In recent years, there have been numerous studies on ONNs using VO2. Most of them report simulation results. Although in some cases experimental results are also shown, they do not implement the design techniques that other works on electrical simulations report that allow to improve the behavior of the ONNs. Experimental validation of these approaches is necessary. Therefore, in this study, we describe an ONN realized in a commercial CMOS technology in which the oscillators are built using a circuit that we have developed to emulate the VO2 device. The purpose is to be able to study in-depth the synchronization dynamics of relaxation oscillators similar to those that can be performed with VO2 devices. The fabricated circuit is very flexible. It allows programming the synapses to implement different ONNs, calibrating the frequency of the oscillators, or controlling their initialization. It uses differential oscillators and resistive synapses, equivalent to the use of memristors. In this article, the designed and fabricated circuits are described in detail, and experimental results are shown. Specifically, its satisfactory operation as an associative memory is demonstrated. The experiments carried out allow us to conclude that the ONN must be operated according to the type of computational task to be solved, and guidelines are extracted in this regard.
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El síndrome de Peutz-Jeghers (SPJ) es un síndrome autosómico dominante con una incidencia de 1 de cada 200 000 nacidos vivos. Las manifestaciones clínicas más frecuentes son las máculas hiperpigmentadas típicamente localizadas en la mucosa oral y la presencia de pólipos en el tracto gastrointestinal. A diferencia de la edad adulta, en Pediatría es excepcional el desarrollo de patología tumoral maligna. Sin embargo, en la edad pediátrica hay que tener un elevado índice de sospecha ante un paciente con diagnóstico de SPJ que presenta dolor abdominal compatible con una invaginación intestinal, ya que esta complicación es relativamente frecuente y precisa tratamiento quirúrgico urgente. Una vez realizado el diagnóstico de esta enfermedad, se deberán llevar a cabo controles periódicos mediante endoscopias a partir de los ocho años de edad (AU)
Peutz-Jeghers syndrome (PJS) is an autosomal dominant syndrome with an incidence of 1 in 200,000 live births. The most frequent clinical manifestations are hyperpigmented macules typically located on the oral mucosa and the presence of polyposis in the gastrointestinal tract.Unlike adulthood, in pediatrics the development of malignant tumor pathology is exceptional. However, in the pediatric age group, a high index of suspicion must be maintained when faced with a patient diagnosed with PJS who presents with abdominal pain compatible with intussusception, since this complication is relatively frequent and requires urgent surgical treatment. Once the diagnosis of this disease has been made, periodic controls should be carried out by means of endoscopies starting at eight years of age. (AU)
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Humains , Mâle , Enfant d'âge préscolaire , Syndrome de Peutz-Jeghers/diagnostic , Syndrome de Peutz-Jeghers/chirurgie , Hyperpigmentation , Prolapsus rectalRÉSUMÉ
El panadizo herpético es una lesión cutánea producida por el virus herpes simple, en pediatría especialmente el virus herpes tipo 1. Es una lesión que se debe conocer para evitar realizar un diagnóstico incorrecto e instaurar tratamientos innecesarios o incluso perjudiciales. La presentación clínica habitual es una lesión con vesículas arracimadas, cuya localización típica es en primer o segundo dedo. En los pacientes pediátricos es frecuente que se produzca tras autoinoculación desde una gingivoestomatitis herpética, por lo que ante la sospecha de esta lesión es importante la exploración física completa incluyendo orofaringe. El curso es autorresolutivo aunque en ocasiones puede ser necesario instaurar tratamiento con aciclovir oral. El drenaje de la lesión está contraindicado porque puede llegar a producir una diseminación del virus herpes con graves consecuencia (AU)
Herpetic whitlow is a skin lesion caused by the herpes simplex virus (HSV), usually type 1 in the paediatric population. Providers must be aware of this lesion to avoid making an incorrect diagnosis and initiating unnecessary or even harmful treatments.The usual presentation is a lesion with clustered vesicles, typically located on the first or second toe. In paediatric patients, it is often the result of autoinoculation from HSV gingivostomatitis lesions, so when this lesion is suspected, it is important to carry out a complete physical examination including the oropharynx.The course is self-limiting, although on occasion treatment with oral acyclovir becomes necessary. Drainage of the lesion is contraindicated because it could lead to dissemination of HSV with severe consequences. (AU)