Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 77
Filtrar
Más filtros

Banco de datos
País/Región como asunto
Tipo del documento
Intervalo de año de publicación
1.
Nature ; 568(7751): 226-229, 2019 04.
Artículo en Inglés | MEDLINE | ID: mdl-30894750

RESUMEN

The origins of religion and of complex societies represent evolutionary puzzles1-8. The 'moralizing gods' hypothesis offers a solution to both puzzles by proposing that belief in morally concerned supernatural agents culturally evolved to facilitate cooperation among strangers in large-scale societies9-13. Although previous research has suggested an association between the presence of moralizing gods and social complexity3,6,7,9-18, the relationship between the two is disputed9-13,19-24, and attempts to establish causality have been hampered by limitations in the availability of detailed global longitudinal data. To overcome these limitations, here we systematically coded records from 414 societies that span the past 10,000 years from 30 regions around the world, using 51 measures of social complexity and 4 measures of supernatural enforcement of morality. Our analyses not only confirm the association between moralizing gods and social complexity, but also reveal that moralizing gods follow-rather than precede-large increases in social complexity. Contrary to previous predictions9,12,16,18, powerful moralizing 'big gods' and prosocial supernatural punishment tend to appear only after the emergence of 'megasocieties' with populations of more than around one million people. Moralizing gods are not a prerequisite for the evolution of social complexity, but they may help to sustain and expand complex multi-ethnic empires after they have become established. By contrast, rituals that facilitate the standardization of religious traditions across large populations25,26 generally precede the appearance of moralizing gods. This suggests that ritual practices were more important than the particular content of religious belief to the initial rise of social complexity.


Asunto(s)
Mapeo Geográfico , Principios Morales , Religión/historia , Bases de Datos Factuales , Historia Antigua , Humanos , Ciencias Sociales
2.
Pediatr Res ; 93(6): 1736-1744, 2023 05.
Artículo en Inglés | MEDLINE | ID: mdl-36180587

RESUMEN

BACKGROUND: Approximately 5-10% of children exhibit developmental deviations in motor skills or other domains; however, physicians detect less than one-third of these abnormalities. Systematic tracking and early identification of motor deviations are fundamental for timely intervention. METHODS: Term and preterm neonates were prospectively assessed at the newborn (NB) period in a study of the psychometric properties of the Motor (MOT) domain of PediaTracTM v3.0, a novel caregiver-based development tracking instrument. Item response theory graded response modeling was used to model item parameters and estimate theta, an index of the latent trait, motor ability. Exploratory factor analysis (EFA) was conducted to examine the dimensionality and factor structure. RESULTS: In a cohort of 571 caregiver/infant dyads (331 term, 240 preterm), NB MOT domain reliability was high (rho = 0.94). Item discrimination and item difficulty of each of the 15 items could be reliably modeled across the range of motor ability. EFA confirmed that the items constituted a single dimension with second-order factors, accounting for 43.20% of variance. CONCLUSIONS: The latent trait, motor ability, could be reliably estimated at the NB period. IMPACT: The caregiver-reported Motor domain of PediaTrac provides a reliable estimate of the latent trait of motor ability during the newborn period. This is the first known caregiver-reported instrument that can assess motor ability in the newborn period with high reliability in term and preterm infants. Item response theory methods were employed that will allow for future characterization of developmental subgroups and motor trajectories. The PediaTrac Motor domain can support early identification of at-risk infants. Including caregivers in digital reporting and child-centered monitoring of motor functioning may improve access to care.


Asunto(s)
Cuidadores , Recien Nacido Prematuro , Lactante , Humanos , Recién Nacido , Psicometría , Reproducibilidad de los Resultados , Destreza Motora , Encuestas y Cuestionarios
3.
Dev Med Child Neurol ; 2023 Nov 23.
Artículo en Inglés | MEDLINE | ID: mdl-37997282

RESUMEN

AIM: To examine the extent to which estimates of a latent trait or underlying construct of motor ability differ in infants born at term and preterm, based on caregiver ratings of the motor domain of PediaTrac v3.0. METHOD: The sample consisted of 571 caregiver-infant dyads (331 born at term, 240 born preterm), 48% female, with 51.7% of caregivers identifying as an ethnic minority. Latent trait of motor ability was estimated based on item response theory modeling. Gestational group differences (term and preterm birth) were examined at the newborn/term-equivalent, 2-, 4-, 6-, 9-, and 12-month time points. RESULTS: Caregiver ratings of latent trait of motor ability were reliably modeled across the range of abilities at each time point. While the group born preterm exhibited significantly more advanced motor abilities at the term-equivalent time point, by 6 months the group born at term was more advanced. Biological sex difference main and interaction effects were not significant. INTERPRETATION: Caregivers provided reliable, longitudinal estimates of motor ability in infancy, reflecting important differences in the motor development of infants born at term and preterm. The findings suggest that significant motor development occurs in infants born preterm from birth to the term-equivalent time point and provide a foundation to examine motor growth trajectories as potential predictors in the early identification of neurodevelopmental conditions and needs.

5.
Pediatr Emerg Care ; 37(12): e1603-e1610, 2021 Dec 01.
Artículo en Inglés | MEDLINE | ID: mdl-32530836

RESUMEN

OBJECTIVE: The objective of this study was to evaluate feasibility of supplementing emergency department (ED) concussion discharge instructions for adolescents and parents with a newly created educational comic and a publicly available comic-based video at an outpatient sports neurology clinic. METHODS: We created a gender-neutral, 2-page comic to augment text-only ED concussion discharge instructions. A sample of patients evaluated at a sports neurology clinic and their parents/guardians participated. Patients and their parents were randomized to view either the comic only or both the comic and publicly available comic-based video. Patients and parents completed preintervention and postintervention surveys to assess likeability and concussion knowledge including concussion definition, symptoms, return-to-ED criteria, and resuming normal activity. Data were analyzed using descriptive and comparative statistics. RESULTS: A total of 57 patients (47.4% female; mean age, 15 years) and 37 guardians were enrolled. Most (73%) concussions were sports related, with the majority having sought care within 24 hours in an ED (80%). Over half (51%) had experienced 2 or more prior concussions. Overall, 31 adolescents and 20 guardians viewed both comic and video, whereas 26 adolescents and 17 guardians viewed the comic only. Both comic and video were favorably reviewed, but a higher proportion of respondents rated the video more positively than the comic for likability (P < 0.01), comprehensibility (P < 0.05), and increasing understanding (P < 0.05). Patients' knowledge of some concussion symptoms emphasized in the comic increased after reading (emotional changes, P = 0.02; vomiting, P = 0.04). CONCLUSIONS: Patients showed increased concussion knowledge using the favorably endorsed comic-based discharge instructions. Using comic-based supplemental discharge tools may optimize concussion education for adolescents.


Asunto(s)
Traumatismos en Atletas , Conmoción Encefálica , Adolescente , Conmoción Encefálica/diagnóstico , Conmoción Encefálica/terapia , Servicio de Urgencia en Hospital , Estudios de Factibilidad , Femenino , Humanos , Masculino , Padres , Alta del Paciente
6.
J Emerg Med ; 54(6): 844-848, 2018 06.
Artículo en Inglés | MEDLINE | ID: mdl-29685466

RESUMEN

BACKGROUND: Gonorrhea is the second most common sexually transmitted infection. Disseminated gonococcal infection (DGI) consists of gonococcal infection plus one or more of the triad of arthritis, tenosynovitis, and dermatitis. Diagnosis in the emergency department (ED) must be suspected clinically, as confirmatory tests are often not available. Point-of-care ultrasound (POCUS) can aid in diagnosis and appropriate management by identifying tenosynovitis and excluding arthritis. CASE REPORT: A 26-year-old man with multiple recent sex partners presented to the ED with slowly progressing right wrist pain and swelling over 5 days. His dorsal right wrist was swollen, with slightly decreased range of motion owing to mild pain, and no warmth, tenderness, erythema, or drainage. Multiple hemorrhagic, gray-purple blisters were noted over both hands. Serum white blood cell count was 12 × 103/µL; C-reactive protein was 30.3 mg/L. POCUS of the dorsal right wrist found no joint effusion; the extensor tendon sheath contained a large anechoic space with clear separation of the extensor tendons, suggesting a tendon sheath effusion/tenosynovitis. DGI was suspected, without septic arthritis. The patient was admitted and treated with ceftriaxone and azithromycin. Gonococcus grew from blood cultures and pharyngeal swabs. WHY SHOULD AN EMERGENCY PHYSICIAN BE AWARE OF THIS?: DGI must be suspected clinically, as confirmatory tests are often not available in the ED. Not all patients present with arthritis, tenosynovitis, and dermatitis. It is often difficult to differentiate tenosynovitis from arthritis. POCUS can aid in diagnosis by identifying tenosynovitis (vs. arthritis or simple soft-tissue swelling), allowing timely appropriate DGI diagnosis and management, and, importantly, averting unnecessary arthrocentesis.


Asunto(s)
Gonorrea/diagnóstico , Tenosinovitis/diagnóstico , Ultrasonografía/métodos , Adulto , Antibacterianos/uso terapéutico , Servicio de Urgencia en Hospital/organización & administración , Gonorrea/complicaciones , Humanos , Masculino , Neisseria gonorrhoeae/patogenicidad , New England , Sistemas de Atención de Punto/tendencias , Infecciones de los Tejidos Blandos/complicaciones , Infecciones de los Tejidos Blandos/diagnóstico , Ultrasonografía/tendencias
7.
J Theor Biol ; 398: 43-51, 2016 06 07.
Artículo en Inglés | MEDLINE | ID: mdl-27012517

RESUMEN

Groups of individuals have social networks that structure interactions within the groups; evolutionary theory increasingly uses this fact to explain the emergence of cooperation (Eshel and Cavalli-Sforza, 1982; Boyd and Richerson, 1988, 1989; Ohtsuki et al., 2006; Nowak et al., 2010; Van Veelen et al., 2012). This approach has resulted in a number of important insights for the evolution of cooperation in the biological and social sciences, but omits a key function of social networks that has persisted throughout recent evolutionary history (Apicella et al., 2012): their role in transmitting gossip about behavior within a group. Accounting for this well-established role of social networks among rational agents in a setting of indirect reciprocity not only shows a new mechanism by which the structure of networks is fitness-relevant, but also reveals that knowledge of social networks can be fitness-relevant as well. When groups enforce cooperation by sanctioning peers whom gossip reveals to have deviated, individuals in certain peripheral network positions are tempting targets of uncooperative behavior because gossip they share about misbehavior spreads slowly through the network. The ability to identify these individuals creates incentives to behave uncooperatively. Consequently, groups comprised of individuals who knew precise information about their social networks would be at a fitness disadvantage relative to groups of individuals with a coarser knowledge of their networks. Empirical work has consistently shown that modern humans know little about the structure of their own social networks and perform poorly when tasked with learning new ones. This robust empirical regularity may be the product of natural selection in an environment of strong selective pressure at the group level. Imprecise views of networks make enforcing cooperation easier.


Asunto(s)
Evolución Biológica , Conocimiento , Conducta Cooperativa , Humanos , Modelos Biológicos
8.
Transfus Apher Sci ; 55(2): 264-265, 2016 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-27663069

RESUMEN

Therapeutic plasma exchange (TPE) is often an isolated specialty with very little research, especially in regard to the mode of access. This lack of information drove this attempt at reviewing the use of arterio-venous fistulas (AVF) in TPE, and specifically the issue of monitoring the accesses patency. Using a Transonic®, we attempted to obtain a reading, using the Spectra Optia™ on a patient's access. Unfortunately, due to the limitations of the equipment, we were unable to get a reading. Our conclusion is that we will have to monitor using other approaches, such as physical assessment and ultrasound.


Asunto(s)
Anastomosis Arteriovenosa , Eliminación de Componentes Sanguíneos/métodos , Intercambio Plasmático/métodos , Humanos
9.
Psychol Res ; 79(4): 590-608, 2015 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-24941914

RESUMEN

Previous studies have shown that verbalization, in the form of self-guided instruction, is an effective cognitive strategy used to enhance motor skill acquisition and performance. However, past research has not explicitly examined which aspects of motor output are affected (whether beneficially or deleteriously) by verbalization. In the current study, we conducted two separate experiments in which a total of 80 healthy participants, aged 18-27, completed a novel motor sequence learning task. Half of the participants in each experiment were pre-trained in the sequence using verbalization, while the other half was either trained motorically, or not trained at all. Rote memorization of verbal labels facilitated motor sequence learning, motor control, and action maintenance, but not action planning of the motor sequence. Potential underlying mechanisms as well as clinical implications are discussed.


Asunto(s)
Actividad Motora/fisiología , Desempeño Psicomotor/fisiología , Aprendizaje Seriado/fisiología , Conducta Verbal/fisiología , Adolescente , Adulto , Femenino , Humanos , Masculino , Adulto Joven
10.
Proc Natl Acad Sci U S A ; 109(18): E1092-100, 2012 May 01.
Artículo en Inglés | MEDLINE | ID: mdl-22474381

RESUMEN

Gammaherpesvirus infections, such as those caused by EBV, have been suggested to promote the development of autoimmunity. To test this idea, we infected healthy WT and lupus-prone B6.Sle123 mice with an EBV-related and rodent-specific gammaherpesvirus, γHV68. Although acute γHV68 infection increased autoantibody levels for 4 to 6 wk, latent infection inhibited these responses for 1 y. The inhibition of autoantibody expression was only observed in B6.Sle123 females and not in males, which already displayed lower autoantibody titers. Contrary to the initial hypothesis, infection of young B6.Sle123 mice, both male and female, resulted in suppression of lymphoid activation and expansion and of glomerular inflammation and sclerosis, preserving kidney function. Moreover, γHV68 infection led to reduced autoantibody titers, lymphoid activation, and glomerular inflammation whether lupus-prone females were infected before or during disease manifestation. Finally, γHV68 infection also inhibited autoantibody production in the genetically distinct MRL/lpr lupus-prone mice. Our findings indicate that γHV68 infection strongly inhibits the development and progression of lupus-like disease in mice that spontaneously develop this condition mediating its beneficial effects at the humoral, cellular, and organ levels. The mechanisms by which the virus exerts this down-modulatory action are not yet clear, but appear to operate via reduced activation of dendritic cells, T cells, and B cells. Gammaherpesviruses coevolved with the vertebrate immune systems, establishing lifelong infections in humans and other mammals. Our findings that γHV68 infection prevents rather than exacerbates autoimmunity in mice suggest that infection with gammaherpesviruses may be protective rather than pathological in most individuals.


Asunto(s)
Autoinmunidad , Infecciones por Herpesviridae/inmunología , Lupus Eritematoso Sistémico/inmunología , Rhadinovirus , Infecciones Tumorales por Virus/inmunología , Animales , Autoanticuerpos/sangre , Células Dendríticas/inmunología , Femenino , Infecciones por Herpesviridae/complicaciones , Lupus Eritematoso Sistémico/prevención & control , Nefritis Lúpica/inmunología , Nefritis Lúpica/prevención & control , Activación de Linfocitos , Masculino , Ratones , Ratones Endogámicos C57BL , Ratones Endogámicos MRL lpr , Modelos Inmunológicos , Infecciones Tumorales por Virus/complicaciones
11.
WMJ ; 123(3): 218-221, 2024 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-39024151

RESUMEN

INTRODUCTION: In this report, we describe a case of anisocoria following uncomplicated cataract surgery. Clinicians should consider postoperative mechanical and tonic pupils when evaluating patients with anisocoria. CASE PRESENTATION: A 69-year-old White female underwent uncomplicated cataract surgery of her left eye. No intraoperative pupil expansion devices were used, and no floppy iris or iris prolapse occurred during the surgery. Postoperatively, she was found to have anisocoria. Pharmacologic pupillary testing confirmed a tonic and mechanical left pupil. DISCUSSION: There have been no reported causes of anisocoria from a tonic pupil after cataract surgery. Based on reports of tonic pupils following other eye surgeries, our case likely occurred from a combination of parasympathetic dysfunction and mechanical trauma. CONCLUSIONS: To our knowledge, this is the first report of a tonic pupil following cataract surgery, thus expanding the literature of causes of anisocoria that may be underrecognized in the clinical setting.


Asunto(s)
Anisocoria , Extracción de Catarata , Humanos , Anisocoria/etiología , Femenino , Anciano , Complicaciones Posoperatorias
12.
WMJ ; 123(3): 222-224, 2024 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-39024152

RESUMEN

INTRODUCTION: In this report, we describe a rare case of a cranial nerve VI palsy secondary to herpes zoster infection with polyneuropathic involvement. CASE PRESENTATION: An 82-year-old male was seen by ophthalmology for acute onset of double vision. Fourteen days before presenting, he was diagnosed with herpes zoster ophthalmicus. He was suspected to have zoster polyneuropathy also involving cranial nerve IX and X given a sore throat that began prior to the characteristic trigeminal dermatomal rash. He was diagnosed with cranial nerve VI palsy secondary to herpes zoster infection. DISCUSSION: Ophthalmic complications of herpes zoster ophthalmicus are many; however, extraocular nerve palsies secondary to herpes zoster infection and zoster polyneuropathy are documented infrequently in the literature. CONCLUSIONS: Extraocular muscle palsies are a rare complication of herpes zoster infection. This case reviews the most current literature surrounding this condition and discusses the significance of polyneuropathic involvement in varicella zoster virus reactivation.


Asunto(s)
Enfermedades del Nervio Abducens , Herpes Zóster Oftálmico , Humanos , Masculino , Herpes Zóster Oftálmico/complicaciones , Herpes Zóster Oftálmico/tratamiento farmacológico , Herpes Zóster Oftálmico/diagnóstico , Anciano de 80 o más Años , Enfermedades del Nervio Abducens/etiología , Enfermedades del Nervio Abducens/virología , Antivirales/uso terapéutico , Diagnóstico Diferencial
13.
Ecol Evol ; 14(2): e11036, 2024 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-38414567

RESUMEN

Reports increasingly point to substantial declines in wild bee abundance and diversity, yet there is uncertainty about how best to measure these attributes in wild bee populations. Two commonly used methods are passive trapping with bee bowls or active netting of bees on flowers, but each of these has drawbacks. Comparing the outcomes of the two methods is complicated by their uncomparable units of effort. The abundance distribution of bee species is also typically highly skewed, making it difficult to accurately assess diversity when rarer species are unlikely to be caught. The effective number of species, or Hill numbers, provides a way forward by basing the response metric on the number of equally abundant species. Our goal is to compare the effective number of bee species captured between hand netting and bowl trapping in wheatgrass prairie in South Dakota and tallgrass prairie in Minnesota, USA. Species overlap between the two methods ranged from ~40% to ~60%. Emphasis placed on rare species was important, so that 95% confidence limits overlapped between the two methods for species richness but netting exceeded trapping for Shannon's and Simpson's diversities. Netting always captured more bee species with fewer bee individuals than trapping. In most cases, the number of bees captured in bowl traps indicated substantial over-sampling, with little increase in bee species detected. Correlations between bee and floral abundance, richness, and diversity differed between netted and trapped samples. We conclude that netting and trapping together produce a more complete account of species richness, but shifting sampling emphasis from trapping to netting will result in fewer bees, but more bee species captured. Due to the different relationships between bee and floral diversities that depended on sampling method, it is unwise to compare habitat associations determined by netting with those determined by trapping.

14.
IDCases ; 36: e01972, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38711945

RESUMEN

Immunotherapies can lead to an immune compromised state that can allow for opportunistic pathogens such as Rhodococcus to flourish. The vast majority of Rhodococcus infections occur in immunocompromised hosts. Here we describe disseminated Rhodococcus equi infection in a patient with diffuse large B-cell lymphoma treated with immunotherapy. Infection with Rhodococcus can be diagnosed with the aid of cytomorphology and histochemical findings and the organism confirmed by sequencing. In conclusion, Rhodococcus should be considered in the differential of granulomatous inflammation in immunocompromised individuals treated with immunotherapies.

15.
Child Neuropsychol ; : 1-19, 2024 Jan 26.
Artículo en Inglés | MEDLINE | ID: mdl-38275156

RESUMEN

Altered motor and social-communicative abilities in infancy have been linked to later ASD diagnosis. Most diagnostic instruments for ASD cannot be utilized until 12 months, and the average child is diagnosed substantially later. Imitation combines motor and social-communicative skills and is commonly atypical in infants at risk for ASD. However, few measures have been developed to assess infant imitation clinically. One barrier to the diagnostic age gap of ASD is accessibility of screening and diagnostic services. Utilization of caregiver report to reliably screen for ASD mitigates such barriers and could aid in earlier detection. The present study developed and validated a caregiver-report measure of infant imitation at 4, 6, and 9 months and explored the relationship between caregiver-reported imitation and motor abilities with later ASD risk. Participants (N = 571) were caregivers of term and preterm infants recruited as part of a large multi-site study of PediaTrac™, a web-based tool for monitoring and tracking infant development. Caregivers completed online surveys and established questionnaires on a schedule corresponding to well-child visits from birth to 18 months, including the M-CHAT-R/F at 18 months. Distinct imitation factors were derived from PediaTrac at 4, 6, and 9 months via factor analysis. The results supported validity of the imitation factors via associations with measures of infant communication (CSBS; ASQ). Imitation and motor skills at 9 months predicted 18-month ASD risk over and above gestational age. Implications for assessment of infant imitation, detecting ASD risk in the first year, and contributing to access to care are discussed.

16.
J Microbiol Biol Educ ; 25(1): e0014923, 2024 Apr 25.
Artículo en Inglés | MEDLINE | ID: mdl-38661413

RESUMEN

Over the last several years, nationally disseminated course-based undergraduate research experiences (CUREs) have emerged as an alternative to developing a novel CURE from scratch, but objective assessment of these multi-institution (network) CUREs across institutions is challenging due to differences in student populations, instructors, and fidelity of implementation. The time, money, and skills required to develop and validate a CURE-specific assessment instrument can be prohibitive. Here, we describe a co-design process for assessing a network CURE [the Prevalence of Antibiotic Resistance in the Environment (PARE)] that did not require support through external funding, was a relatively low time commitment for participating instructors, and resulted in a validated instrument that is usable across diverse PARE network institution types and implementation styles. Data collection efforts have involved over two dozen unique institutions, 42 course offerings, and over 1,300 pre-/post-matched assessment record data points. We demonstrated significant student learning gains but with small effect size in both content and science process skills after participation in the two laboratory sessions associated with the core PARE module. These results show promise for the efficacy of short-duration CUREs, an educational research area ripe for further investigation, and may support efforts to lower barriers for instructor adoption by leveraging a CURE network for developing and validating assessment tools.

17.
Assessment ; : 10731911241241144, 2024 Apr 05.
Artículo en Inglés | MEDLINE | ID: mdl-38581112

RESUMEN

The primary aim of this study was to evaluate the convergent validity of the Motor domain (MOT) of PediaTracTM v3.0, an online developmental tracking instrument based on caregiver reports, with fine and gross motor domains (ASQ-FM and ASQ-GM) of the Ages and Stages Questionnaire (ASQ-3) in infants between 2- and 9 months of age. Participants were caregivers of 571 infants born term or preterm (gestational age <37 weeks) enrolled in a multi-site psychometric study of PediaTracTM. Findings revealed significant correlations between MOT and ASQ-3 scores at 2, 4, 6, and 9 months across time periods, term-preterm status, and biological sex. A significantly higher percentage of infants born preterm, compared with those born at term, was identified as a moderate or high risk on both the ASQ-3 and PediaTrac. Future investigations are warranted to further examine the psychometric properties of the MOT domain, including sensitivity, specificity, and positive and negative predictive value.

18.
Am J Psychol ; 126(1): 67-80, 2013.
Artículo en Inglés | MEDLINE | ID: mdl-23505960

RESUMEN

The present study compared the strength of the horizontal-vertical illusion in blindfolded sighted people with raised-line curves and three-dimensional (3-D) objects. Although the horizontal-vertical curvature illusion has been reported with raised-line stimuli in both vision and touch, it was not known whether similar haptic distortion would be found with 3-D objects. Similar overestimation of verticals was found with both types of stimuli in Experiment 1. Experiment 2 used bimanual unrestricted exploration at the body midline and stimuli horizontal on the table surface or in the frontal plane. In Experiment 2, illusion strength was substantially stronger when the stimuli were frontal and diminished overall for the horizontal group. The horizontal-vertical illusion was strong with optimal methods of presentation (free bimanual exploration) in Experiment 2, even where radial-tangential scanning could not be a causal factor in the frontal group. The results suggest that illusory distortion in haptics is not the result of the use of raised lines, and these patterns can be effective surrogates for 3-D objects.


Asunto(s)
Percepción de Profundidad , Percepción de Forma , Ilusiones , Orientación , Estereognosis , Ceguera/psicología , Femenino , Lateralidad Funcional , Humanos , Masculino , Privación Sensorial , Percepción del Tamaño , Adulto Joven
19.
J Pediatr Rehabil Med ; 16(2): 301-309, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-36847020

RESUMEN

PURPOSE: This study assessed concussion knowledge in concussed youth and parents treated at a multi-disciplinary concussion center. METHODS: Youth (n = 50) and parents (n = 36) were approached at the beginning of a clinical visit. Participants completed a 22-item, previously published concussion knowledge survey before the visit. RESULTS: Responses were compared with previously collected, published data from adolescents in a high school setting (n = 500). The patient group was divided into those with one (n = 23) vs. two or more concussions (n = 27). Chi-square analyses compared total correct responses between youth, parents, and the high school sample. T-tests assessed differences in knowledge based on prior concussions, age, and gender. All groups showed high accuracy for return-to-play guidelines (>90%) and similar knowledge of concussion-related symptoms (72.3% vs. 68.6%). Significant knowledge gaps about diagnosis, neurological consequences, and long-term risks were present across groups (19% to 68% accuracy). The patient group more often misattributed neck symptoms to concussion (X2  < 0.005). Prior concussion and gender were not significant predictors of concussion knowledge (p > 0.5). CONCLUSION: Community and clinically-based educational techniques may not be effectively communicating knowledge about concussion diagnosis, symptoms, long-term risks, and neurological implications of concussion. Educational tools need to be tailored to specific settings and populations.


Asunto(s)
Traumatismos en Atletas , Conmoción Encefálica , Adolescente , Humanos , Niño , Traumatismos en Atletas/diagnóstico , Conocimientos, Actitudes y Práctica en Salud , Conmoción Encefálica/diagnóstico , Encuestas y Cuestionarios , Padres
20.
J Cell Sci ; 123(Pt 7): 1050-9, 2010 Apr 01.
Artículo en Inglés | MEDLINE | ID: mdl-20197406

RESUMEN

Septin complexes at the bud neck in Saccharomyces cerevisiae serve as a scaffold for proteins involved in signaling, cell cycle control, and cell wall synthesis. Many of these bind asymmetrically, associating with either the mother- or daughter-side of the neck. Septin structures are inherently apolar so the basis for the asymmetric binding remains unknown. Bni4, a regulatory subunit of yeast protein phosphatase type 1, Glc7, binds to the outside of the septin ring prior to bud formation and remains restricted to the mother-side of the bud neck after bud emergence. Bni4 is responsible for targeting Glc7 to the mother-side of the bud neck for proper deposition of the chitin ring. We show here that Bni4 localizes symmetrically, as two distinct rings on both sides of the bud neck following energy depletion or activation of cell cycle checkpoints. Our data indicate that loss of Bni4 asymmetry can occur via at least two different mechanisms. Furthermore, we show that Bni4 has a Swe1-dependent role in regulating the cell morphogenesis checkpoint in response to hydroxyurea, which suggests that the change in localization of Bni4 following checkpoint activation may help stabilize the cell cycle regulator Swe1 during cell cycle arrest.


Asunto(s)
Proteínas de Ciclo Celular/biosíntesis , Proteínas de Ciclo Celular/metabolismo , Proteínas Serina-Treonina Quinasas/metabolismo , Transporte de Proteínas/efectos de los fármacos , Proteínas Tirosina Quinasas/metabolismo , Proteínas de Saccharomyces cerevisiae/biosíntesis , Proteínas de Saccharomyces cerevisiae/metabolismo , Estrés Fisiológico , Animales , Ciclo Celular/efectos de los fármacos , Proteínas de Ciclo Celular/genética , Línea Celular , Metabolismo Energético , Hidroxiurea/farmacología , Unión Proteica , Ingeniería de Proteínas , Estabilidad Proteica , Proteínas Recombinantes de Fusión , Saccharomyces cerevisiae , Proteínas de Saccharomyces cerevisiae/genética
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA