Search results for "juvenile"

The Amino Acid Transporter JhI-21 Coevolves with Glutamate Receptors, Impacts NMJ Physiology, and Influences Locomotor Activity in Drosophila Larvae

2015

AbstractChanges in synaptic physiology underlie neuronal network plasticity and behavioral phenomena, which are adjusted during development. The Drosophila larval glutamatergic neuromuscular junction (NMJ) represents a powerful synaptic model to investigate factors impacting these processes. Amino acids such as glutamate have been shown to regulate Drosophila NMJ physiology by modulating the clustering of postsynaptic glutamate receptors and thereby regulating the strength of signal transmission from the motor neuron to the muscle cell. To identify amino acid transporters impacting glutmatergic signal transmission, we used Evolutionary Rate Covariation (ERC), a recently developed bioinforma…

Repeated, Intermittent Social Defeat across the Entire Juvenile Period Resulted in Behavioral, Physiological, Hormonal, Immunological, and Neurochemi…

2016

The developing brain is vulnerable to social defeat during the juvenile period. As complements of human studies, animal models of social defeat provide a straightforward approach to investigating the functional and neurobiological consequences of social defeats. Taking advantage of agonist behavior and social defeat in male golden hamster, a set of 6 experiments was conducted to investigate the consequences at multiple levels in young adulthood resulting from repeated, intermittent social defeats or “social threats” across the entire juvenile period. Male hamsters at postnatal day 28 (P28) were randomly assigned to either the social defeat, “social threat”, or arena control group, and they …

Level of 25-Hydroxyvitamin D in Pediatric Arthritis Patients

2019

Abstract Vitamin D deficiency is common and widespread globally. Vitamin D has an immunomodulatory effect, but it is still unclear whether its deficiency is associated with higher disease activity. The aim of this retrospective study was to determine the serum concentration of vitamin D in children with paediatric arthritis (juvenile idiopathic arthritis and reactive arthritis). Prevalence of hypo-vitaminosis D among 98 children with juvenile idiopathic arthritis and reactive arthritis was determined and association between serum concentration of vitamin D and disease activity markers was found. Prevalence of vitamin D deficiency among children included in this study was 69.07%. Children wi…

A Brief History of Sexual Offender Risk Assessment

2016

The assessment of risk of further offending behavior by adult sexual perpetrators has come a long way since the early 1900s. From risk estimations based on clinical observation and environmental changes in the 1920s, anthropological and longitudinal studies of juvenile offenders in the 1930s, the examination of psychoneurotic patients in the 1940s to the application of actuarial prediction to clinical assessment in the 1950s, researchers and practitioners have sought to identify valid and reliable measures of recidivism risk in sexual offenders. The emphasis in risk prediction slowly changed following Meehl’s (1954) seminal contributions to the clinical-statistical debate which introduced t…

2018

The first few months of life is the most vulnerable period for fish and their optimal hatching time with zooplankton prey is favored by natural selection. Traditionally, however, prey abundance (i.e., zooplankton density) has been considered important, whereas prey nutritional composition has been largely neglected in natural settings. High-quality zooplankton, rich in both essential amino acids (EAAs) and fatty acids (FAs), are required as starting prey to initiate development and fast juvenile growth. Prey quality is dependent on environmental conditions, and, for example, eutrophication and browning are two major factors defining primary producer community structures that will directly d…

Libro de Actas del Congreso Peligrosidad, sanción y educación en el Derecho penal juvenil: veinte años de experiencia

2022

Libro de Actas del Congreso Peligrosidad, sanción y educación en el Derecho penal juvenil: veinte años de experiencia, celebrado los días 16, 23 y 30 de abril de 2021 en línea, Facultat de Dret de la Universitat de València.

Los contextos del uso de marihuana en Latinoamérica y culturas juveniles urbanas en México

2005

La intención de éste trabajo es dar cuenta de los contextos sociales, políticos y cultu¬rales de América Latina, especialmente el caso de México, con respecto a la situación de la producción y el consumo de la marihuana. Se trabaja la hipótesis teórica de que los contextos nos ayudan a comprender las distintas prácticas sociales con su diversi¬dad de sentidos y significados que generan los usuarios y los públicos consumidores de este bien no sólo material sino desde su valor simbólico teniendo como referente los movimientos sociales. Dentro de los públicos usuarios nos interesa enfatizar al sector de los jóvenes, es decir, a las culturas juveniles urbanas o a las adscripciones identitarias …

Age Differences in the Response of Willow Tits (Parus montanus ) to Conspecific Alarm Calls

2003

Predation is an important mortality factor in wintering birds. To counter this, birds produce alarm calls in the presence of predators which serve to warn conspecifics. In social hierarchical bird flocks, adults survive the winter better than juveniles and therefore survival strategies probably vary with social status. This study examined the differential responses to alarm calls by free-living willow tits, Parus montanus, in dominance-structured winter flocks in Finland. To explore the age-dependent differences in response to conspecific alarm calls, a series with three alarm calls was played to focal adults and juveniles while they sat in the middle section of a spruce branch. Immediately…

Canakinumab as first-line biological therapy in Still’s disease and differences between the systemic and the chronic-articular courses: Real-life exp…

2022

ObjectiveInterleukin (IL)-1 inhibitors are largely employed in patients with Still’s disease; in cases with refractory arthritis, IL-6 inhibitors have shown to be effective on articular inflammatory involvement. The aim of the present study is to assess any difference in the effectiveness of the IL-1β antagonist canakinumab prescribed as first-line biologic agent between the systemic and the chronic-articular Still’s disease.MethodsData were drawn from the retrospective phase of the AutoInflammatory Disease Alliance (AIDA) international registry dedicated to Still’s disease. Patients with Still’s disease classified according to internationally accepted criteria (Yamaguchi criteria and/or Fa…

Importance of Sampling Frequency to Detect Differential Timing of Migration: A Case Study with BlackcapsSylvia atricapilla

2009

Our aim was to assess to what extent detection of differential timing of passage in migrant birds depends on the sampling frequency (SF). We determined if Blackcaps Sylvia atricapilla performed differential migration by age and sex when passing over N Iberia. We mist netted and ringed migrating Blackcaps at a stopover site, both during the autumn (2005) and the spring (2006) migrations. During autumn, adult female Blackcaps passed later than juvenile birds and adult males. In spring, however, migration differed mainly by sex rather than by age. In particular, males passed over earlier than females, likely due to the pressure on males to earlier arrival at their breeding areas. A simulation …